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1

Space schemes of ecological zonation and morphology of the atolls lagoons and reef complex of an oceanic archipelago of the Caribbean: San Andres and Providence (Colombia)  

International Nuclear Information System (INIS)

The oceanic atolls and reef-complexes of the Archipelago of San Andres and Providencia exhibit semi-enclosed to rather open lagoon basins, where various characteristic bottom habitats occur. Certain areas of the lagoon floor are covered by sediments, being in some settings vegetated by algae or sea grass, and other areas by coralline framework of different types according to the composition and dominance of coral species and to their morphology and level of reef development. This study seeks to determine the spatial distribution patterns of lagoon bottom habitats based on the analysis of gradients of most relevant physical factors. Patterns in the occurrence and abundance of most habitats became evident in relation with wave-energy level, water depth, and the occurrence of islands. Some morphological reef types are oriented in a preferential direction and show spatial arrangements of development that are presumably related to prevailing current speed and direction and wave exposure

2005-09-01

2

Miocene and Pleistocene mollusks from San Andres Island (Caribbean Sea, Colombia) and Paleogeographic considerations  

International Nuclear Information System (INIS)

San Andres Island is the largest emerged portion of the oceanic archipelago of San Andres and Providencia, southwestern Caribbean Sea; it originated as a coralline atoll during Miocene times. The central and highest part of the island consists of a calcareous crest, the San Andres Formation, formed by Neogene lagoonal and reefal deposits. This crest is surrounded by a calcareous platform of Pleistocene age (San Luis Formation) which emerges only along the island coast, whereas its most part is submerged and covered by a Recent reef complex. Fossil material of molluscs from these two formations was collected in various sites throughout the island and taxonomically identified. In the four sites sampled in the San Andres Formation, material belonging to 19 gastropod and 37 bivalve species was obtained, most of them relatively well represented in other geologic formations of the Caribbean region that are stratigraphically situated between the upper Miocene and the middle Pliocene. Some elements occurring in this formation, such as Ostrea haitiensis, Meretrix dariena and Siphocypraea henekeni, were widely distributed in the Caribbean Miocene Province. In the San Luis Formation, material belonging to 18 gastropod and 11 bivalve species was obtained, most of them also represented in the Recent molluscan fauna of the region. The estimated age of this formation is Sangamonian, hence corresponding to similar formations occurring in Grand Cayman, Jamaica, Hispaniola, the Netherlands Antilles and other Caribbean islands, with which it also shows a great similarity in the composition of the molluscan fauna.

2010-01-01

3

San Andres, Providence and Santa Catalina: a challenge of sustainable development  

International Nuclear Information System (INIS)

Satisfactorily to implement the postulates of Biosphere Reserve Sea flower in the Archipelago of San Andres, Providencia and Santa Catalina demands to conjugate national, regional and local efforts in order to surpass the complex economic and social situation untied in this zone of the country after the loss of competitiveness and benefits that the model of Free Port meant to him from 1953 and which they have let perceive itself from principles of the Nineties when Colombia adopted the economic opening like development policy, changes that have resulted in the deterioration of the natural resources and the atmosphere of the islands and finally in the quality of life of their inhabitants and that imposes to this zone of the national territory the challenge to reach the balance man-nature that implies the concept of Biosphere Reserve, category acquired by the Archipelago before UNESCO in the 2000 The absence of agreed economic model with geographic, space, social, cultural and environmental conditions of the Archipelago, together with factors like: (i) political national that does not know the particularities and specificities of this zone of the country, (ii) inter institutional lack of joint in the different levels from the public administration which they concur there, (iii) absence of operation of the Gobernacion Departamental like administrator of the regional public management, (IV) absence of effectiveness population policy to control their indiscriminate increase and (v) lack of social conscience of inhabitants as visitors of the islands with respect to the adapted use of their natural resources and its constitutional and legal obligations to participate in the management like executors or veedors, among other aspects, jeopardizes their development in order to reach the environmental sustainability

2003-12-01

4

Archipelago  

Science.gov (United States)

Started in 1997, Archipelago offers up a farrago of poetry, fiction, photo collages, and other such artistic endeavors once (sometimes twice) a year. It's a delight to learn about, and interested parties will appreciate looking over their most recent offerings. Of course, they won't want to stop at the latest material, as they can also delve into their online archive. To give curious parties a sense of Archipelago's contents, they have recently featured Frank McGuinness' piece "Andy Warhol Says A Mass", the poems of Katherine E. Young, and the transcript of a talk on Thomas Jefferson and intellectual property rights given by Jeffrey H. Matsuura. Visitors wishing to take a copy of Archipelago away from their computer screen can also click on a PDF version that is more than appropriate for printing out and taking to their favorite coffeehouse or literary salon.

5

The role of diagenetic studies in flow-unit modeling: San Andres formation, Yoakum County, Texas  

Energy Technology Data Exchange (ETDEWEB)

The Permian San Andres Formation represents one of the most prolific hydrocarbon-producing intervals of the Permian basin. Dolostone lithofacies intercalated with thin evaporites accommodate highly compartmentalized reservoirs resulting from complex depositional and diagenetic histories. This compartmentalization often facilitates the use of these reservoirs in flow-unit studies. Perhaps more important than the relationship of productive intervals to depositional facies is the degree to which diagenetic processes have influenced reservoir properties. Detailed petrographic evaluation of the reservoir in question, though often overlooked, should be an integral part of flow-unit studies. Once a diagenetic sequence is established, the information may be incorporated in to the facies model to better understand how to subdivide the reservoir. Such an investigation has been conducted on the San Andres Formation in Reeves field of southeastern Yoakum County, Texas. Here, multistage diagenetic overprints are superimposed on depositional facies that vary in degree of lateral extent, thereby complicating the geometries of individual productive zones within the reservoir. Analysis of the reservoir reveals that Reeves San Andres sediments were subjected to dominant diagenetic processes, including dolomitization and sulfate implacement, both of which are major factors in porosity preservation, and a variety of minor processes that have had little effect on reservoir quality. The recognition of diagenetic facies, and understanding of the processes that have created them, and identification of the implications of these processes on reservoir properties is a vital part of any flow-unit study.

Henderson, S. (Texas Tech Univ., Lubbock, TX (United States))

1994-03-01

6

Origins of the Salado, Seven Rivers, and San Andres salt margins in Texas and New Mexico: Revision 1: Topical report  

International Nuclear Information System (INIS)

The present boundaries of the San Andres, Seven Rivers, and Salado salts generally lie along the periphery of the Palo Duro and Tucumcari Basins. Various geologic mechanisms occurring singularly or in combination determined the positions of the salt margins. These mechanisms include nondeposition of salt and syndepositional and postdepositional dissolution. In New Mexico, San Andres units pinch out against the Pedernal and Sierra Grande Uplifts, indicating that nondeposition established the original salt margins there. Syndepositional dissolution of exposed Upper San Andres salts occurred in response to Guadalupian upwarp of the basin margins. Triassic erosion differentially removed Permian salt-bearing formations along the uplifts. Late Tertiary dissolution is indicated by fill of north-south trending collapse valleys. In Texas, Guadalupian upwarp along the Amarillo Uplift caused pinchout of Units 2 and 3 in the Lower San Andres and influenced the deposition of subsequent salt-bearing strata. The discontinuity of Upper San Andres evaporites across the Amarillo Uplift suggests syndepositional dissolution. Along the eastern and northeastern basin margin, dissolution may have accompanied Triassic erosion of locally uplifted Upper Permian strata. Tertiary dissolution is recognized beneath anomalously thick Ogallala Formation sections that overlie collasped Permian strata. 49 refs., 31 figs., 2 tabs

1987-01-01

7

Microseismic monitoring as a tool for mapping fractures in the San Andres dolomite. [Microearthquakes  

Energy Technology Data Exchange (ETDEWEB)

Microseismic monitoring shows promise of being a practical tool for mapping fractures in the San Andres dolomite in terms of rate of microearthquake occurrence and the areal coverage possible from a single downhole seismometer. Microearthquakes were detected during normal waterflood production but monitoring was not complete enough to correlate injection/production activity with microseismic event recurrence. Constant monitoring time capability with at least 3 downhole seismometers is needed to more accurately locate events, and to reliably characterize seismic recurrence in the field. In addition, modeling pressure variations in the reservoir may help explain the mechanisms that produces the microearthquakes. Data useful in modeling the pressure variations could be from tracer experiments, pressure interference tests and individual well production-injection volume. Understanding the mechanism of producing the microearthquakes should, in turn, allow the correlation of the microseismicity with fluid flow within the reservoir. 2 refs., 3 figs.

Rutledge, J.T.; Fairbanks, T.D.; House, L.S. (Los Alamos National Lab., NM (United States)); Murphy, M.B. (Murphy Operating Corp., Roswell, NM (United States))

1991-01-01

8

Microseismic monitoring as a tool for mapping fractures in the San Andres dolomite  

Energy Technology Data Exchange (ETDEWEB)

Microseismic monitoring shows promise of being a practical tool for mapping fractures in the San Andres dolomite in terms of rate of microearthquake occurrence and the areal coverage possible from a single downhole seismometer. Microearthquakes were detected during normal waterflood production but monitoring was not complete enough to correlate injection/production activity with microseismic event recurrence. Constant monitoring time capability with at least 3 downhole seismometers is needed to more accurately locate events, and to reliably characterize seismic recurrence in the field. In addition, modeling pressure variations in the reservoir may help explain the mechanisms that produces the microearthquakes. Data useful in modeling the pressure variations could be from tracer experiments, pressure interference tests and individual well production-injection volume. Understanding the mechanism of producing the microearthquakes should, in turn, allow the correlation of the microseismicity with fluid flow within the reservoir. 2 refs., 3 figs.

Rutledge, J.T.; Fairbanks, T.D.; House, L.S. [Los Alamos National Lab., NM (United States); Murphy, M.B. [Murphy Operating Corp., Roswell, NM (United States)

1991-12-31

9

Morphology and it structures of the coralline formations of San Bernardo's archipelago, Colombian Caribbean  

International Nuclear Information System (INIS)

The archipelago of San Bernardo is an extensive reef complex of coralline origin located off the Caribbean coast of Colombia. In order to determine the distribution, morphological features, structure, and zonation patterns of the bottom environments of this area, employing aerial photography and observations in the field, thematic maps were produced and a series of data upon the structure of the sessile benthic biota was gathered. The complex comprises an area of more than 250 km2; of which more than 60% corresponds to bottoms with notable coral cover (> 60% of the bottom) extending to depths of nearly 30m. Three geomorphological units and seven main types of habitats or ecological units were recognized

2000-06-01

10

Measuring permeability trends and correlation structures in heterogeneous carbonates, San Andres Formation, New Mexico  

Energy Technology Data Exchange (ETDEWEB)

Detailed permeability measurements were obtained using a mechanical field permeameter (MFP) on a 210-ft core of the upper San Andres Formation. Analyses of these measurements were used to arrive at an optimal combination of sampling method, number of measurements, and measurement spacing. Parasequences are considered to be a fundamental geologic unit in the shelf carbonate depositional setting. In this case, the parasequences typically are composed of a thin mudstone base, overlain by bar-flank, burrowed wackestones-packstones, and capped by thick barcrest planar- to cross-bedded oolitic packstones-grainstones. The presence and physical scale of vugs, burrows, cemented zones, and moldic porosity makes the task of obtaining representative petrophysical measurements, such as permeability, difficult at best in these facies. To address this complexity, two basic sampling strategies were applied to the core for MFP-scale measurements. The first approach use a vertical transect of closely spaced (1.2 in) measurement points along the length of the core. The second approach used clusters of five points (pads) located at less frequent 6-in intervals. In a comparison of sampling schemes, closely spaced transects and pads yield similar local estimates of the mean; however, the closely spaced transect yields more correlation information because of its superior vertical coverage for a fixed overall number of measurements. Therefore, the authors recommend using closely spaced, vertical transects of measurements over pad sampling schemes.

Goggin, D.J.; Grant, C.W.; Harris, P.M. (Chevron Oil Field Research Co., La Habra, CA (United States))

1991-03-01

11

CO/sub 2/ flood performance evaluation for the Cornell unit, Wasson San Andres field  

Energy Technology Data Exchange (ETDEWEB)

A numerical reservoir simulator has been used to predict CO/sub 2/ enhanced oil recovery (EOR) performance for two process designs, either of which could be implemented at the Cornell Unit, Wasson San Andres field. The two CO/sub 2/ displacement processes examined are a straight CO/sub 2/ slug followed by continuous water injection, and a water-alternating gas (WAG) process with CO/sub 2/, followed by continuous water injection. Predicted recovery performances were found sensitive to viscous, capillary, and gravity-driven crossflow, as well as to reservoir stratification. Hence, evaluation of alternative process designs was influenced strongly by assumed values of effective vertical permeability within continuous pay intervals, even though the vertical permeability between major pay intervals is effectively zero. Work involving a no-crossflow stratification model of the Wasson pay suggested that a straight CO/sub 2/ slug process would be preferable to a WAG process. On the other hand, work with a stratification model that allowed intrazone crossflow indicated that recovery could be improved significantly for a given size CO/sub 2/ slug by means of a WAG process.

Todd, M.R.; Cobb, W.M.; McCarter, E.D.

1982-10-01

12

Survey of benthic dinoflagellates associated to beds of Thalassia testudinumin San Andres Island, Seaflower biosphere reserve, Caribbean Colombia  

International Nuclear Information System (INIS)

In order to determine the occurrence of epiphytic toxic dinoflagellates in the coastal waters of San Andres Island, Caribbean Colombia, we analyzed the sea grass beds on the northern and eastern sides of the island. We found seven species of toxicogenic dinoflagellates, belonging to the genera Prorocentrum and Ostreopsis. The cell densities were generally low if compared with previous studies in other Caribbean sites, ranging from 0 to 836 cells/dry weights. The species encountered are known to produce toxins causing the diarrheic shellfish poisoning and ciguatera, poisonings which have been documented in the island.

2010-01-01

13

RESPUESTA DEL AMBIENTE MARINO A ALGUNOS EVENTOS METEOROLÓGICOS SINÓPTICOS MEDIDOS SOBRE LOS ARRECIFES DE SAN ANDRÉS Y DE LAS ISLAS DEL ROSARIO, CARIBE COLOMBIANO* / RESPONSE OF THE MARINE ENVIRONMENT TO SOME SYNOPTIC WEATHER EVENTS MEASURED ON THE REEFS OF SAN ANDRES ISLAND AND ROSARIO ISLANDS, COLOMBIAN CARIBBEAN  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in spanish [...] Abstract in english Continuous measurements were taken of oceanographic and meteorological parameters for two stations of the Global Ocean Observing System of the Southwest Caribbean, framed in the INAP project. The response of the surface layer, to atmospheric events, allowed to differentiate the pass of two cold fron [...] ts by Johnny Cay station (San Andres Island) and the arrival of the "Veranillo" in the sensors of Tesoro Island (Islas del Rosario, Cartagena). The cold fronts produced a decrease in the atmospheric pressure, air temperature, caused radical changes in wind direction and speed followed by precipitation. This situation lowered the sea surface temperature, the surface layer pH and rose momentarily the sea level. The "Veranillo" came to Archipelago of Rosario generating a strong increase in wind speed and solar radiation. The response in the sea surface layer was evident through a significant increase in sea level.

Carolina, Gutiérrez-Moreno; Milena, Marrugo; Carlos Alberto, Andrade.

14

The rise and fall of psoroptic scabies in bighorn sheep in the San Andres Mountains, New Mexico.  

Science.gov (United States)

Between 1978 and 1997, a combination of psoroptic scabies (Psoroptes spp.), mountain lion (Puma concolor) predation, and periodic drought reduced a population of native desert bighorn sheep (Ovis canadensis) in the San Andres Mountains (SAM), New Mexico, from >200 individuals to a single ewe. In 1999, this ewe was captured, ensured to be Psoroptes-free, and released back into the SAM. Eleven radio-collared rams were translocated from the Red Rock Wildlife Area (RRWA) in New Mexico into the SAM range and monitored through 2002 to determine whether Psoroptes spp. mites were still in the environment. None of these sentinel rams acquired scabies during this period, and no additional native sheep were found to be present in the range. In 2002, 51 desert bighorn sheep were translocated into the SAM from the Kofa National Wildlife Refuge in Arizona (n = 20) and the RRWA in New Mexico (n = 31). Twenty-one bighorn sheep have died in the SAM since that time, but Psoroptes spp. mites have not been detected on any of these animals, nor have they been found on mule deer (Odocoileus hemionus) sampled since 2000. We conclude that psoroptic scabies is no longer present in the San Andres bighorn sheep population and that psoroptic scabies poses a minimal to nonexistent threat to the persistence of this population at this time. PMID:16244062

Boyce, Walter M; Weisenberger, Mara E

2005-07-01

15

Depositional cyclicity and scaling petrophysical parameters for characterization of fluid flow in carbonate platform reservoirs: San Andres outcrop, Algerita escarpment, New Mexico  

Energy Technology Data Exchange (ETDEWEB)

San Andres outcrops along the Algerita escarpment in the Guadalupe Mountains of New Mexico are composed of five sequences: a lower to middle San Andres sequence and four upper San Andres sequences. Within a sequence the predictable stacking patterns of cycles in different systems tracts, and of facies and rock-fabric successions within cycles, provide the necessary geologic framework for petrophysical quantification of geologic models. Rock fabric is a fundamental scale controlling the petrophysical properties of porosity, permeability, and capillarity. Four basic rock fabrics are present in the upper San Andres at Lawyer Canyon: dolograinstone, dolograin-dominated packstone, finely crystalline mud-dominated dolostone, and separate-vug dolograinstone. These four rock fabrics have unique average permeability values and porosity-permeability transforms. Permeability distribution was determined in the grainstone facies of cycle 1 at scales ranging from 1 in. to 100 ft. Variogram analysis of spatial permeability distribution indicates short-range correlation with a relatively high nugget, suggesting that permeability heterogeneity is largely random within a rock-fabric facies. A detailed cross section showing the nine cycles and the vertical and lateral distribution of rock fabrics within the cycles was converted to a permeability flow model using geometric mean permeabilities. The resulting rock-fabric flow model is suitable for input into reservoir simulators for performance prediction studies.

Lucia, F.J.; Kerans, C.; Senger, R.K. (Univ. of Texas, Austin (United States))

1992-04-01

16

An Integrated Study of the Grayburg/San Andres Reservoir, Foster and South Cowden Fields, Ector County Texas  

Energy Technology Data Exchange (ETDEWEB)

For a part of the Foster and South Cowden (Grayburg-San Andres) oil fields, improvement in oil production has been accomplished, in part, by using ?pipeline fracturing? technology in the most recent completion to improve fluid flow rates, and filtration of waterflood injection water to preserve reservoir permeability. The 3D seismic survey acquired in conjunction with this DOE project has been used to calculate a 3D seismic inversion model, which has been analyzed to provide detailed maps of porosity within the productive upper 250 feet of the Grayburg Formation. Geologic data, particularly from logs and cores, have been combined with the geophysical interpretation and production history information to develop a model of the reservoir that defines estimations of remaining producible oil. The integrated result is greater than the sum of its parts, since no single data form adequately describes the reservoir. Each discipline relies upon computer software that runs on PC-type computers, allowing virtually any size company to affordably access the technology required to achieve similar results.

Richard Weinbrandt; Robert C. Trentham; William Robinson

1997-10-23

17

Geologic description of San Andres reservoir, Mallet lease, Slaughter field, Hockley County, Texas: Implications for reservoir engineering projects  

Energy Technology Data Exchange (ETDEWEB)

The lower San Andres dolomite reservoir in the Mallet lease area of Slaughter field, a giant stratigraphic trap in Hockley County, Texas, has been the subject of integrated geologic and engineering reservoir analyses. The geologic study provided a good physical model from which engineering studies could account successfully for past production history and predict the response to future operations. The Mallet reservoir, which is about 200 ft thick, is stratified into a repeating sequence of permeable and porous, laterally extensive units that dip southward at a rate of 50-60 ft/mi. This stratification results from the vertical and orderly repetition of the facies in sedimentary sequences. Each sequence begins with a minor disconformity, above which are subtidal sediments, then intertidal, and finally supratidal sediments, representing repeated progradation of mud-flat and adjacent nearshore marine sediments over deposits of the shallow marine shelf. Only the subtidal facies is sufficiently permeable to be considered net pay. Anhydrite cement strongly affects porosity and permeability because it preferentially occludes larger pores and causes fluid flow to be controlled by the very fine matrix pore system. The various geologic factors that influence reservoir quality in numerical models may be incorporated by defining model layers on the basis of flow units. Flow units are subdivisions of the reservoir that are expected to behave similarly to the oil recovery process. Their geometries are defined on the basis of geologic facies and patterns of diagenesis, and they are assigned properties determined from petrophysical measurements of porosity, permeability, fluid saturations, and other critical aspects of reservoir quality.

Ebanks, W.J. Jr. (ARCO Oil and Gas Co., Plano, TX (USA))

1987-02-01

18

Estado de conservación de las especies vegetales utilizadas para la artesanía en el valle de San Andrés, Pinar del Río, Cuba / Conservation state of the vegetable species used for the craft in San Andres's valley, Pinar del Rio, Cuba  

Scientific Electronic Library Online (English)

Full Text Available SciELO Argentina | Language: Spanish Abstract in spanish La investigación titulada: Estado de conservación de las especies vegetales utilizadas para la artesanía en el valle de San Andrés, Pinar del Río, Cuba tuvo una duración de dos años en diferentes etapas, comenzando por la caracterización físico geográfica del área de estudio y de los productos fores [...] tales no madereros presentes. Este trabajo está basado en investigaciones de campo, encuestas etnobiológicas, revisión de la bibliografía, observaciones biofenológicas sobre los productos forestales no madereros presentes en el área de estudio, su estado actual y diferentes usos. Los principales resultados obtenidos fueron conocer los productos vegetales utilizados por artesanos, los productos fabri-cados y el estado actual y perspectivas de la población de estos productos. Al concluir el trabajo se recomienda incrementar la repobla-ción de estas plantas para garantizar en un futuro la materia prima usada por los artesanos en la zona del valle de San Andrés, cumpliendo así el objetivo de la investigación que fue sistematizar los conocimientos sobre la existencia y el uso de estos productos y conocer el impacto ambiental, social y económico que causa la explotación de estos recursos naturales en el valle de San Andrés. Abstract in english The investigation untitled: Conservation state of the vegetable species used for the craft in San Andres's valley, Pinar del Rio, Cuba was carried out during two years, in different stages, beginning with the physical and geographical characterization of the studying area and the not forestry produc [...] ts present on it, this work is based on field investigations, etnobiological requests, bibliography searching, biophenological observations on the not forestry products present in the studying area, its current state and different uses. The main results obtained were to know the vegetable products used by artisans, the manufactured products, the current state and the population perspectives of these products. When concluding the work it is recommended to deepen with the repopulation of these plants to guarantee in a future the prevail matter used by the artisans in the area of San Andre's' valley, arriving by this way to the objective of the investigation that was to systematize the knowledge of the existence and the use of these products and to know the environmental, social and economic impact that causes the exploitation of these natural resources in San Andres's valley.

Pimentel Pimentel, C. O.; Castañeta Valdez, V..

19

Petrographic report on samples from units 4 and 5 salt, lower San Andres formation, J. Friemel No. 1 well, Deaf Smith County, Palo Duro Basin, Texas  

International Nuclear Information System (INIS)

This report presents the results of mineralogic and petrographic analyses performed on samples of salt-bearing rock from a potential repository site in the Palo Duro Basin, Texas. The samples are from Permian Units 4 and 5 salt, Lower San Andres Formation, J. Friemel No. 1 well, Deaf Smith County, Texas. The mineralogic and petrographic data were obtained from polished thin sections cut parallel to the axis of the core for each sample. The polished thin sections were examined in order to determine the abundances of soluble (halite) and insoluble components (anhydrite, clay, carbonate, quartz, gypsum, etc.). The information reported here includes mineral associations (detrital, authigenic, cement, alteration, etc.), texture, grain size, and sedimentary fabrics. The report also includes representative photomicrographs with superimposed bar scales. Photomicrographs of polished thin sections have the up-core direction designated. X-ray diffraction was also used for identification of soluble and insoluble minerals. 7 refs., 2 tabs

1985-01-01

20

Descripción morfoagronómica de materiales de plátano (Musa AAB, ABB) y banano (Musa AAA) cultivados en San Andrés Isla / Morpho-agronomic Description of Plantain (Musa AAB, ABB) and Banana (Musa AAA) Materials Grown in San Andres Island  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in spanish Durante el primer semestre de 2005 se estudiaron los cultivares de plátano y banano en fincas y parcelas de 15 agricultores típicos participantes en programas conjuntos de la Secretaría de Agricultura y Pesca de San Andrés Isla y de la Universidad Nacional de Colombia sede Caribe. A partir de descri [...] ptores de INIBAP, IPGRI y CIRAD y revisiones bibliográficas.se describen morfológicamente los materiales de Musa cultivados en la Isla, así como las prácticas de los productores isleños, Se identificaron cuatro clones del subgrupo plátano (Musa AAB): un Hartón (‘Horse’) y tres Dominico-Hartón (‘Tallo Negro’, ‘Tallo Blanco’ y ‘Cincuenta’) del subgrupo ABB se hallaron un material de Bluggoe (‘Boscó’) y un Felipita. El subgrupo banano AAA presentó dos materiales Gros Michel (denominados Común y Chino) y uno de banano (Rojo). El plátano tiene gran importancia para los agricultores de la Isla, siendo el Boscó el clon más aceptado entre consumidores por su adaptación a las condiciones edafológicas y climáticas. El banano es menos cultivado; ya que los suelos, el clima y las enfermedades como sigatoka negra, condicionaron el desarrollo de clones. El trabajo sugiere prácticas de fácil implementación que podrían aumentar la producción en los sistemas de huerto mixto tropical que predominan en la Isla. Abstract in english During the first semester, 2005 we studied the plantain and banana cultivars in small farms of 15 volunteer regular producers, who were participating in joint programs of the Agriculture and Fisheries Secretariat of San Andres Island and the Colombian National University Caribbean Headquarters. We d [...] escribed morphologically the Musa cultivars identified in the island, as well as agricultural practices of the island producers, using the INIBAP, IPGRI and CIRAD (1996) descriptors and bibliographical reviews. We identified four clones within the plantain sub-group Musa AAB: a Horn type and three French-Horn; and within the ABB sub-group a Bluggoe (dubbed “Boscó”) and a Felipita type. The banana sub-group AAA had two Gros Michel type, known as “Banano Común” and “Banano Chino”, as well as one of red banana (“Banano Rojo”). The plantain culture has paramount importance for San Andres farmers, and the clone named “Boscó” is the preferred one for its taste, and its adaptation to the edaphic and climatic conditions. Banana is less cultivated; the soil and the climate, as well as diseases (v.gr. the leaf spot disease or sigatoka) determined the growth of their clones. This work suggests a list of easy to implement agronomic practices that would enhance the production of the predominant producing systems of the island.

Oscar Javier, Parra Pachón; Daniel Gerardo, Cayón Salinas; Jaime, Polanía Vorenber.

 
 
 
 
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Descripción morfoagronómica de materiales de plátano (Musa AAB, ABB y banano (Musa AAA cultivados en San Andrés Isla Morpho-agronomic Description of Plantain (Musa AAB, ABB and Banana (Musa AAA Materials Grown in San Andres Island  

Directory of Open Access Journals (Sweden)

Full Text Available Durante el primer semestre de 2005 se estudiaron los cultivares de plátano y banano en fincas y parcelas de 15 agricultores típicos participantes en programas conjuntos de la Secretaría de Agricultura y Pesca de San Andrés Isla y de la Universidad Nacional de Colombia sede Caribe. A partir de descriptores de INIBAP, IPGRI y CIRAD y revisiones bibliográficas.se describen morfológicamente los materiales de Musa cultivados en la Isla, así como las prácticas de los productores isleños, Se identificaron cuatro clones del subgrupo plátano (Musa AAB: un Hartón (‘Horse’ y tres Dominico-Hartón (‘Tallo Negro’, ‘Tallo Blanco’ y ‘Cincuenta’ del subgrupo ABB se hallaron un material de Bluggoe (‘Boscó’ y un Felipita. El subgrupo banano AAA presentó dos materiales Gros Michel (denominados Común y Chino y uno de banano (Rojo. El plátano tiene gran importancia para los agricultores de la Isla, siendo el Boscó el clon más aceptado entre consumidores por su adaptación a las condiciones edafológicas y climáticas. El banano es menos cultivado; ya que los suelos, el clima y las enfermedades como sigatoka negra, condicionaron el desarrollo de clones. El trabajo sugiere prácticas de fácil implementación que podrían aumentar la producción en los sistemas de huerto mixto tropical que predominan en la Isla.During the first semester, 2005 we studied the plantain and banana cultivars in small farms of 15 volunteer regular producers, who were participating in joint programs of the Agriculture and Fisheries Secretariat of San Andres Island and the Colombian National University Caribbean Headquarters. We described morphologically the Musa cultivars identified in the island, as well as agricultural practices of the island producers, using the INIBAP, IPGRI and CIRAD (1996 descriptors and bibliographical reviews. We identified four clones within the plantain sub-group Musa AAB: a Horn type and three French-Horn; and within the ABB sub-group a Bluggoe (dubbed “Boscó” and a Felipita type. The banana sub-group AAA had two Gros Michel type, known as “Banano Común” and “Banano Chino”, as well as one of red banana (“Banano Rojo”. The plantain culture has paramount importance for San Andres farmers, and the clone named “Boscó” is the preferred one for its taste, and its adaptation to the edaphic and climatic conditions. Banana is less cultivated; the soil and the climate, as well as diseases (v.gr. the leaf spot disease or sigatoka determined the growth of their clones. This work suggests a list of easy to implement agronomic practices that would enhance the production of the predominant producing systems of the island.

Oscar Javier Parra Pachón

2009-10-01

22

Outcrop analog for cyclic-shelf reservoirs, San Andres formation of Permian basin: Stratigraphic framework, permeability distribution, geostatistics, and fluid-flow modeling  

Energy Technology Data Exchange (ETDEWEB)

Vertical and horizontal transects were sampled from core and outcrop of the San Andres Formation at Lawyer Canyon, Guadalupe Mountains, New Mexico, to assess permeability variation in a geologic framework of upward-shallowing carbonate cycles and to show the potential effect these variations have on viscous-dominated flow behavior in analogous reservoirs. These cycles occur in a ramp-crest facies, tract, are 3-13 m (10-45 ft) thick, and contain both vertical and lateral variation of lithofacies. Thicker cycles consist of a basal dolomudstone, which is overlain by burrowed dolomudstone, and capped by bar-flank ooid-peloid dolograinstone and bar-crest ooid dolograinstones. In vertical transects, permeability is extremely variable about the mean, yet upward-increasing trends coinciding with the succession of lithofacies typify a given cycle. Semi-variance analysis shows permeability to be uncorrelated vertically at distances greater than 5.5 m (18 ft), which is the average cycle thickness, suggesting that the cycles may equate to fluid-flow unit in a reservoir. Semi-variance analysis of measurements collected along a horizontal transect within bar-crest dolograinstones of a single cycle show permeability is uncorrelated at distances greater than 3.6 m (12 ft). This correlation distance appears to be controlled by alternating porous and tightly cemented zones that formed during dolomitization. Vertical and lateral variogram models were fit to the spatial parameters to generate a variety of conditionally simulated permeability fields. Fluid-flow simulations show viscous-dominated flow behavior is compartmentalized by both the individual cycles and groups of cycles. The basal dolomudstones are potential baffles to flow crossover between cycles, but poorly developed cycles (i.e., those that are mud rich and lack well-developed bar-flank and bar-crest facies) result in the greatest compartmentalization of fluid flow within a succession of cycles.

Grant, C.W.; Goggin, D.J.; Harris, P.M. (Chevron Petroleum Technology Company, La Habra, CA (United States))

1994-01-01

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An integrated study of the Grayburg/San Andres Reservoir, Foster and South Cowden Fields, Ector County, Texas. Annual report, August 1, 1996--July 31, 1997  

Energy Technology Data Exchange (ETDEWEB)

The objective of this two-phase study is to demonstrate an integrated methodology for reservoir characterization of shallow shelf carbonate reservoir that is feasible, and cost effective for the independent operator. Furthermore, it will provide one of the first public demonstrations of the enhancement of reservoir characterization using high-resolution three dimensional (3D) seismic data. This particular project is evaluating the Grayburg and San Andres reservoirs in the Foster and South Cowden Fields, Ector County, Texas. This 68 year old field was approaching its economic limit and the leases evaluated would have been abandoned in 10 years. A multidisciplinary approach to waterflood design and implementation, along with the addition of reserves by selective infill drilling and deepening, is being applied to this field. This approach in reservoir development will be applicable to a wide range of shallow shelf carbonate reservoirs throughout the US. The first phase of the project included the design, acquisition, and interpretation of the 3D seismic survey, the collection and evaluation of geologic (core and log) data, and engineering (historical production, well test, injection) data from a variety of sources. From this work, a geologically based production history model was simulated. Based on the recommendations made at the end of Phase One, three new wells were drilled, one existing well was deepened, two wells were worked over, one TA`d well was re-entered, and one well was converted to injection. In addition, the quality of the injection water was greatly improved, a step necessary prior to increasing injection in the project area. The realignment of the waterflood and all additional well work await the completion of the seismic based history match and engineering simulation.

Trentham, R.C.; Weinbrandt, R.; Robinson, W.

1997-12-01

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The social construction of bath in two communities temazcal of the mixteca region: Santiago Yolomecatl and San Andres Chicahuaxtla  

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Full Text Available The bathroom of temazcal is a knowledge of pre-Hispanic roots still practiced in rural and indigenous communities in our country. Studies on the temazcal have focused on its forms of construction and operation, however, the many therapeutic benefits temazcal bath attached to the human body, and women in particular, not have been sufficiently documented. In this case, two communities of the Oaxacan mixteca were studied: Santiago Yolomecatl and San Andrés Chicahuaxtla. In this study, a questionnaire was applied to 20 per cent of families in each of the communities, a questionnaire to allopathic doctors and six stories of life at temazcaleras. The results indicate a coincidence between patients and doctors in the study populations on the medicinal uses of the temazcal bath: after childbirth and for muscle aches, however, interviewed temazcaleras indicate diseases that cures this bath are: angina, flu, rheumatism,scars, muscle aches after childbirth and cramping. For its part, doctors support the idea of preserving the temazcal bath because it is a healing means to treat diseases through steam and faster recovery of the body. The constructivist analysis of the responses gathered in questionnaires and life stories shows that the medicinal uses of the temazcal, before being recognised as such go through a process of evaluation, filtration and social construction. This process of acceptance, perception and recognition occurs through rules of knowledge, ideological connotations, rules and socialsymbols.

Alberto Valdés Cobos

2013-01-01

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Etnomapa: Uso de los recursos naturales por los mayas itzaes de San José y San Andrés del Petén, Guatemala / Ethnomap: use of natural resources by the mayan itzaes of San Jose and San Andres, Peten, Guatemala  

Scientific Electronic Library Online (English)

Full Text Available SciELO Mexico | Language: Spanish Abstract in spanish El artículo analiza la riqueza e importancia del concepto de etnomapa, como herramienta de análisis cultural y espacial por medio de un mapa elaborado por pobladores mayas itzaes de dos asentamientos localizados en el Petén, Guatemala. El estudio se llevó a cabo entre octubre 2006 y septiembre de 20 [...] 07, se completó con la aplicación de encuestas mediante muestreo proporcional a unidades familiares itzaes de dos poblados del Petén central, San José (n = 40) y San Andrés (n = 22). A través de la interpretación de la información y mediante el enfoque de sistemas, se logró dilucidar los componentes agrícolas y los recursos naturales que practican y utilizan los mayas en ambas localidades. Los resultados hallados sugieren que los sistemas agrícolas y de utilización de los bosques tropicales húmedos practicados por los itzaes, representan una actividad económica importante, caracterizada por una amplia utilización de especies agrícolas y naturales. Estas actividades representan una base de recursos fundamental para los itzaes. Las características de estos sistemas son comparables a los encontrados en otros estudios en diferentes grupos mayas confirmando la diversidad de posibilidades de los modelos de adaptación y manejo de recursos de los itzaes. La creación del etnomapa valida del profundo conocimiento local, de la distribución territorial de los recursos naturales y antropogénicos. Se posibilita además el analizar los cambios que enfrentan los poblados itzaes, debido a las presiones socioeconómicas y tecnológicas que se desarrollan actualmente en la región del Petén central de Guatemala. Abstract in english This article analyses the richness and importance of the concept of the ethnomap, as a tool for cultural and spatial analyses, based on a map prepared by mayan Itzae inhabitants of two communities located in El Petén, Guatemala. The study took place between October 2006 and September 2007, and inclu [...] ded surveys carried out with a proportional sampling of Itzae family units in two settlements of the central Petén, San José (n = 40) and San Andrés (n = 22). A systems theory was applied in the analysis and interpretation of the data, resulting in the definition of the agricultural components and the natural resources that the Mayas use in the two communities. Findings suggest that the agricultural and tropical forest activities carried out by the Itzaes represent important economic activities, characterised by the use of a wide range of natural and agricultural species. These activities represent a fundamental resource base for the Itzae-maya population. The characteristics of these systems are comparable to those recorded by other studies on different Maya groups, confirming the diversity of possibilities for the adaptation and resource management models of the Itzaes. The ethnomap validates the profound local knowledge of the territorial distribution of anthropogenic and natural resources. It also makes it possible to analyse the changes facing the local Itzae populations, following the socioeconomic and technological pressures that are present in the central Petén region of Guatemala.

Lara Ponce, E; Caso-Barrera, L; Aliphat, M; Ramírez, B; Gil, A; García, G.

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DINOFLAGELADOS POTENCIALMENTE TÓXICOS ASOCIADOS A MATERIAL ORGÁNICO FLOTANTE (DRIFT) EN SAN ANDRÉS ISLA, RESERVA INTERNACIONAL DE LA BIOSFERA - SEAFLOWER / Potentially toxic Dinoflagellates associated to drift in San Andres Island, International Biosphere Reservation - Seaflower  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in spanish Con el propósito de evaluar la abundancia y la composición de dinoflagelados potencialmente tóxicos asociados al material orgánico flotante (drift) en la isla de San Andrés, se seleccionaron siete sitios de muestreo a lo largo de la margen Norte y Este, paralelos a la barrera arrecifal y a las princ [...] ipales praderas de fanerógamas marinas y macroalgas de la isla. Durante la época de mayor intensidad de vientos, se recolectaron muestras de drift; se identificaron los sustratos a especie y posteriormente se sumergieron en solución 1:1 agua de mar filtrada y solución de Transeau. Luego de agitar vigorosamente las muestras para remover los dinoflagelados, se tamizo la suspensión con una malla de 80 µm y el filtrado se observó al microscopio óptico. Se encontraron cinco sustratos, dos especies de pastos marinos y tres de macroalgas. Sobre los sustratos se identificaron doce especies de dinoflagelados, diez reportadas como tóxicas, causantes de diarrea, parálisis y ciguatera. La abundancia de dinoflagelados varió ampliamente con promedios máximos (±DE) de 15 354±15 749 células/g peso seco de sustrato. De las especies de dinoflagelados, cinco son nuevos registros para San Andrés. No se encontraron diferencias significativas en los valores de diversidad de dinoflagelados entre drift y praderas de pastos y macroalgas, no obstante, la abundancia fue mucho mayor en el drift. Los resultados indican que el drift es un importante sustrato para dinoflagelados y dada su naturaleza flotante, representa tal vez el vector más importante para la dispersión de estos agentes de toxicidad en la isla. Para mitigar el efecto de eventos tóxicos asociados a dinoflagelados en salud pública, pesca y turismo, es necesario diseñar un plan de manejo del material orgánico flotante, que permita mejorar el entendimiento de su composición y dinámica temporal, monitorear las toxinas asociadas e implementar mecanismos de recolección y tratamiento. Abstract in english To assess the composition and abundance of potentially toxic dinoflagellates associated to drift on San Andres island, we selected seven sampling sites along the northern and eastern side of the island. During the wind season, we collected drift samples, identified the main substrates to species, an [...] d submerged them in 1:1 filtered seawater and Transeau solution. After shaking to remove the dinoflagellates, we sieved through an 80 µm screen and analyzed the detached dinoflagellates under an optical microscope. We found five substrates, two seagrass species and three macroalgae. Associated to these substrates, we identified twelve dinoflagellates species, ten of which are reported as toxic and are known to produce diarrhea, paralysis and ciguatera, syndromes reported in San Andrés and other Caribbean places where their frequency is apparently increasing. The dinoflagellate abundance presented strong variation with maximum average values (±SD) of 15354±15749 cel. /g of substrate dry weight. Five of the dinoflagellates associated to drift are new records for the island. We did not found significant differences in diversity of benthic dinoflagellates between drift and seagrass and macroalgae beds; however, the abundance was much higher in drift. The results showed that drift is a very important substrate for potentially toxic dinoflagellates and, considering its buoyant nature, it may represent one of the main dispersion vectors for these species on the island. To mitigate the effect of intoxication events on public health, fisheries and tourism, it is necessary to design a floating organic material management plan, improve the understanding of drift composition and its temporal dynamics, as well as to monitor associated toxins and pursue collection and treatment mechanisms of the floating biomass.

JOSÉ ERNESTO, MANCERA-PINEDA; MARCIAL, MONTALVO-TALAIGUA; BRIGITTE, GAVIO.

2014-06-30

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Analysis of the re-colonization of San Benito Archipelago by Guadalupe fur seals (Arctocephalus townsendi) / Análisis de la recolonización del archipiélago de San Benito por el lobo fino de Guadalupe (Arctocephalus townsendi)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: English Abstract in spanish La explotación del lobo fino de Guadalupe (LFG) durante los siglos XVIII y XIX casi extinguió a la especie. El LFG se distribuye desde las islas Revillagigedo (México) hasta el golfo de Farallones (USA). En la actualidad las colonias reproductivas se encuentran en la isla de Guadalupe y en el archip [...] iélago de San Benito (ASB). El objetivo de este trabajo fue analizar el proceso de re-colonización y el estado actual del LFG en el ASB. También se informan los primeros nacimientos y la ocupación de la isla del Oeste del ASB. Con base en los censos de 1997 a 2007, la población creció con una tasa de incremento anual de 21,6%. Se estudió el tamaño de la población, la tendencia de crecimiento de la colonia, biología reproductiva y preferencias alimentarias. Se contaron 2,227 individuos en el ASB. Tres especies de calamar se encontraron como el principal componente de la dieta (Loligo opalescens, Onychoteuthis banksii y Dosidicus gigas). La territorialidad, los patrones de actividad y el comportamiento reproductivo, muestran una conducta similar entre los individuos de isla Guadalupe y ASB. Se calculó la tasa de crecimiento promedio de las crías del ASB y se comparó con la tasa de crecimiento de las crías de isla Guadalupe (ASB: 6.7 ± 1.4 kg y 68,9 ± 2.64 cm; isla Guadalupe 5.9 ± 0.5 kg, y 67.29 ± 4.3 cm). Se midió la duración de los viajes de alimentación de las hembras, indicando que la colonia de San Benito probablemente se encuentra cerca de una importante zona de alimentación. En cuanto a los patrones de asistencia materna, estos podrían indicar una estrategia de lactancia-viajes de alimentación diferente entre SBA e isla Guadalupe. Se puede esperar que la población de lobos finos en San Benito siga creciendo, ya que no hay limitantes en cuanto al espacio reproductivo y los recursos alimenticios disponibles en la zona. Abstract in english Exploitation of the Guadalupe fur seal (GFS) during the XVIII and XIX centuries almost extirpated the species. GFS were distributed from the Revillagigedo islands (Mexico) to the gulf of Farallones (USA). At present, reproductive colonies are found at Guadalupe Island and San Benito Archipelago (SBA [...] ). The aim of this work was to analyze the process of re-colonization and the current status of GFS at SBA. The first births and the occupation of the west island of the SBA are also reported. Census data from 1997 to 2007 indicated an annual growth rate for the population of 21.6%. The population size, growth tendency of the colony, reproductive biology, and food preferences were also studied. A total of 2,227 GFS were counted at SBA. Three squid species (Loligo opalescens, Onychoteuthis banksii, Dosidicus gigas) were found to be the main dietary components. Territoriality, activity patterns, and reproductive behavior were similar for the seals from Guadalupe Island and SBA. The mean growth rate for pups from SBA was calculated and compared to that of the pups at Guadalupe Island (SBA: 6.7 ± 1.4 kg, 68.9 ± 2.64 cm; Guadalupe Island: 5.9 ± 0.5 kg, 67.29 ± 4.3 cm). The length of food foraging trips by females was measured, suggesting that the SBA colony is probably near an important feeding area. Maternal care patterns could indicate different strategies of nursing-foraging trips between the SBA and Guadalupe Island. The population of fur seals at SBA is expected to increase as there are no limitations in terms of reproductive space or available food resources in the area.

Manuel, Esperón-Rodríguez; Juan Pablo, Gallo-Reynoso.

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Testitud kristlus / Andres Põder  

Index Scriptorium Estoniae

Eesti Evangeelse Luterliku Kiriku peapiiskopi Andres Põder'i essee Juuda evangeeliumi tõlke ja Dan Browni menupõneviku "Da Vinci kood" teemadel. Ilmunud ka: Põder, Andres. Pärimuste pöördepunkt : kõned ja kirjutised. - Tallinn : Kunst, 2007, lk 302-308

Põder, Andres, 1949-

2006-01-01

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COMPOSICIÓN Y DENSIDAD DE CORALES JUVENILES EN DOS ARRECIFES PROFUNDOS DE SAN ANDRÉS ISLA, CARIBE COLOMBIANO / Composition and density of juvenile corals at two deep reefs in San Andres Island, Colombian Caribbean  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in spanish El reclutamiento de corales en un arrecife determina el mantenimiento, la renovación y la estructura futura de las comunidades coralinas. Con el objeto de conocer la composición, densidad y el valor de importancia de corales juveniles escleractínios ([...] estrearon dos localidades (Reggae Nest y El Faro) en la terraza profunda de sotavento, a 20 m de profundidad, en la isla de San Andrés. Así mismo, se cuantificó la frecuencia de mortalidad parcial, total, enfermedades y signos de depredación en los juveniles, en 47 cuadrantes de 1m², distribuidos a lo largo de una cuerda guía. Se registró un total de 397 juveniles coralinos pertenecientes a 16 especies. La densidad promedio y riqueza de juveniles no mostraron diferencias significativas entre Reggae Nest y El Faro. La densidad promedio de las localidades fue alta respecto a lo registrado en arrecifes colombianos y baja en relación a otros arrecifes del Caribe. Las especies con valores de importancia mayores, Agaricia agaricites, Scolymia sp. y Porites astreoides, aportaron el 54.9 % de todos los juveniles, lo que concuerda con lo hallado en otros arrecifes del Caribe. Los géneros de juveniles con mayor densidad, cobertura y frecuencia no concordaron con los adultos dominantes (ej. Montastraea, Colpophyllia, Diploria y Siderastrea); ya que M. annularis y Diploria sp. exhibieron los valores más bajos de importancia como juveniles. Las comunidades coralinas de Reggae Nest y El Faro, deterioradas en las últimas décadas, podría recuperarse naturalmente, teniendo en cuenta la siguiente evidencia: 1) alta densidad de corales juveniles respecto al Caribe colombiano; 2) alta riqueza de juveniles, representados en 16 de las 23 especies de corales adultos registrados para la isla; 3) alto porcentaje de especies comunes entre juveniles y adultos (mantenimiento de cada población); 4) bajos porcentajes de mortalidad parcial (0.7 %; 3 juveniles de 397) y de blanqueamiento encontrados en los juveniles (0.5 %; 2 juveniles de 397). Queda aún por comprobar, la sobrevivencia a largo plazo, si estos juveniles son de especies fugitivas o si la comunidad de constructores está siendo reemplazada. Abstract in english Coral reef recruitment is a fundamental process because it determines the maintenance, renovation and future reef structure. In order to determine the composition, density and importance value of scleractinian juvenile corals ([...] ampled (Reggae Nest and El Faro) at the deep leeward terrace site of San Andres Island. In adittion, in 47 quadrants of 1m² distributed throughout a guide line, frequency of partial mortality, total diseases and depredation signs in juvenile corals were quantified. A total of 397 juveniles of 16 species were registered. The average density and richness of juveniles were not significantly different between Reggae Nest and El Faro. The average density of both localities was high compared to other colombian reefs and lower compared to other reefs in the Caribbean. The species with higher importance value, Agaricia agaricites, Scolymia sp. and Porites astreoides, represented 54.9% of all juveniles, similar to other Caribbean reefs. The genera of juveniles with higher importance value were not the same as the dominant adults (ej. Montastraea, Colpophyllia, Diploria and Siderastrea); which showed the lowest importance value as juveniles (Montastraea annularis and Diploria sp.). The coral communities of Reggae Nest and El Faro, deteriorated in the last decades, could recover naturally, considering the following evidence: 1) high juvenile coral density compared to the Colombian Caribbean; 2) high richness of juveniles, 16 from the 23 coral adults species reported for the island; 3) high percentage of common species between juveniles and adults (maintenance of each population); 4) low partial mortality (0.7%; 3 of 397 juveniles) and bleaching found in juvenile corals (0.5%; 2 juveniles of 397). It is still to verify if these juveniles are fugitive species or if the co

Vidal, Andrés M; Villamil, Claudia M; Acosta, Alberto.

30

COMPARACIÓN TEMPORAL EN LA ESTRUCTURA DE UNA COMUNIDAD CORALINA EN PRIMEROS ESTADOS DE SUCESIÓN, ISLA DE SAN ANDRÉS, COLOMBIA / TEMPORAL COMPARISON IN THE CORAL COMMUNITY STRUCTURE IN ITS EARLY SUCESIONAL STATE, SAN ANDRES ISLAND, COLOMBIA  

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Full Text Available SciELO Colombia | Language: Spanish Abstract in spanish Los arrecifes coralinos del mundo han sufrido un declive durante las pasadas tres décadas. Estos cambios se han evaluado en arrecifes en franja; sin embargo, se desconoce si los tensores causantes de dichos cambios afectan la dinámica de una comunidad coralina en los primeros estados de la sucesión [...] antes del desarrollo de un arrecife. Para resolver este interrogante, se monitoreó durante 2004, 2005 y 2006 una comunidad coralina aislada en San Andrés. Se compararon temporalmente la abundancia, cobertura y mortalidad parcial sufrida por la comunidad coralina y sus poblaciones de coral dominantes. La comunidad coralina no presentó variación estadística en riqueza, abundancia, cobertura, ni en área de mortalidad parcial. Sin embargo, esta comunidad sí varió en composición con la entrada de dos especies de coral (Acropora cervicornis y Scolymia cubensis) y la salida de otras dos especies coralinas (Diploria clivosa y Siderastrea siderea) sugiriendo procesos locales de extinción (causados posiblemente por sedimentación y resuspensión) y colonización (dispersión). Aunque la comunidad coralina como un todo mostró estabilidad, la mortalidad parcial de tres de sus especies dominantes (Montastraea annularis, Porites astreoides y Colpophyllia natans) aumentó y la cobertura de Agaricia agaricites disminuyó en el tiempo (siendo la población más sensible en este sistema). Los resultados sugieren una dinámica similar pero más rápida a la registrada en etapas avanzadas de desarrollo arrecifal (arrecifes franjeantes), donde las variables más sensibles actúan a nivel de población (no comunidad), siendo la mortalidad parcial el factor más importante al explicar la tasa de recambio de especies (composición), la pérdida anual de cobertura coralina y cambios en la distribución de talla colonial de las poblaciones dominantes. Abstract in english The coral reefs worldwide have suffered a decline during the past three decades. These changes have been evaluated in fringing reefs; nevertheless, it is not known if the factors causing those changes affect the coral community dynamics during the first states of the succession, before the developme [...] nt of a reef. To resolve this question, during 2004, 2005, and 2006 we monitored an isolated coral community in San Andres. We compared trough time the abundance, coverage and partial mortality suffered by the coral community and its dominant coral populations. The coral community did not present statistical variation in richness, abundance, coverage, neither in the area of partial mortality. However, this community did change in composition with the entry of two coral species (Acropora cervicornis and Scolymia cubensis) and the exit of other two coral species (Diploria clivosa and Siderastrea siderea) suggesting local processes of extinction (caused possibly by sedimentation and resuspension) and colonization (dispersion). Although the coral community as a whole showed stability, the partial mortality of three of its dominant species (Montastraea annularis, Porites astreoides and Colpophyllia natans) increased and the coverage of Agaricia agaricites diminished over time (been the population more sensitive in this system). These results suggest similar but faster dynamic when compared to the theory reported to advanced stages of reef development (fringing reefs), where the more sensitive variables appeared at population rather than community level, partial mortality being the most important factor explaining the rate of replacement of species (composition), the annual lost of coral coverage, and changes in colonial size distribution of the dominant populations.

Jaramillo-González, Juliana; Acosta, Alberto.

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Reproduction of Blackfin tuna Thunnus atlanticus (Perciformes: Scombridae) in Saint Peter and Saint Paul Archipelago, Equatorial Atlantic, Brazil / Reproducción del atún de aleta negra Thunnus atlanticus (Perciformes: Scombridae) en el Archipiélago San Pedro y San Pablo, Atlántico Ecuatorial, Brasil  

Scientific Electronic Library Online (English)

Full Text Available SciELO Costa Rica | Language: English Abstract in spanish A pesar de la importancia de las capturas del atún de aleta negra Thunnus atlanticus en el noreste de Brasil y en las cercanías del Archipiélago San Pedro y San Pablo (ASPSP), hay una escasez de información sobre su reproducción, especialmente en las islas. La reproducción del atún de aleta negra en [...] este archipiélago se estudió de diciembre 2008 a julio 2010. Con este fin, se recolectaron 361 gónadas de hembras y machos, los machos fueron predominantemente más frecuentes en la muestra total, con una proporción sexual de 1?:2.2 ?. La longitud furcal todos los ejemplares muestreados varió entre 38 y 98 cm, y los machos fueron más abundantes en las clases de mayor longitud. Los valores medios mensuales del índice gonadal (IG) variaron de 6.6 (SD=4.1) a 58.4 (SD=34.7) y de 2.6 (SD=1.3) a 66.2 (SD=30.4) para hembras y machos, respectivamente. Los mayores valores de IG para ambos sexos fueron observados el inicio del primer semestre. Los análisis histológicos mostraron que la mayoría de los ovarios y testículos correspondieron a especímenes aptos para reproducirse. Sin embargo, hembras con ovarios maduros, con gran cantidad de oócitos hidratados y folículos post ovulatorios, se encontraron principalmente de diciembre a marzo, que se considera es la época de reproducción del atún de aleta negra alrededor del ASPSP. Abstract in english The reproduction of Blackfin tuna Thunnus atlanticus has been described for coastal regions, and for a long time, this species was considered to be a strictly continental spawner. Recently, this species was observed around a seamount habitat 500 nautical miles Northeast of Brazil, located between So [...] uth America and Africa. In this study we describe the reproductive biology of Blackfin tuna at Saint Peter and Saint Paul Archipelago (SPSPA). Male and female gonads were sampled from December 2008 to July 2010, and analyzed macro and microscopically. A total of 361 fish were sampled (247 males and 114 females). Males were more common than females, with a sex ratio of 2.2 ?:1?. The fork length (FL) of all sampled specimens ranged from 38 to 98cm, and larger length classes were more frequent in males. It was possible to distinguish six maturity phases for females: immature, developing, spawning capable, actively spawning, regressing and recovering. Five phases were identified for males: immature, developing, spawning capable, actively spawning and recovering. The gonad index (GI) mean monthly values ranged from 6.6 (SD=4.1) to 58.4 (SD=34.7) for females, and from 2.6 (SD=1.3) to 66.2 (SD=30.4) for males. For both sexes, the largest GI values were observed at the beginning of the first semester of the year. Size at first maturity was estimated at 48cm FL and 55cm FL for females and males respectively. Approximately 80% of the specimens were adults and considered to be in reproductive conditions. Histological analysis of the ovaries and testes showed that most of the specimens were sexually mature and were reproductively active during all months of the year. However, females with mature ovaries, with large amounts of hydrated oocytes and post-ovulatory follicles, were mainly found from December to March, thus these months may constitute the main spawning season in SPSPA. Batch fecundity varied between 272 025 and 1 140 584 oocytes for 56 and 68cm FL females respectively. Oocyte development and spawning patterns suggest a multiple spawning behavior. The results revealed that Blackfin tuna is using the SPSPA as a spawning ground, similar to other species commonly observed in the same area during the same reproductive season.

Natalia P.A., Bezerra; , Fernandes; Fernanda V., Albuquerque; Vanessa, Pedrosa; Fábio, Hazin; Paulo, Travassos.

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Andres Ehin Jaapanist Iirini  

Index Scriptorium Estoniae

Andres Ehin valiti Ülemaailmse Haiku Assotsiatsiooni auliikmeks ja kirjaniku inglisekeelset luulekogu "Moose Beetle Swallow" esitleti 2005. aasta Euroopa kultuuripealinnas Corkis Iirimaal. Järgneb: Looming 2006, nr. 2, lk. 311

2006-01-01

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Identidades ambientales, un caso comparativo entre el Trapecio amazónico y el Archipiélago de San Andrés: A Comparative Case Study of the Colombian Amazon region and the Archipelago of San Andrés / Identidades ambientais, um caso comparativo entre o Trapézio amazônico e o Arquipélago de San Andrés / Environmental Identities  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in portuguese Resumo A partir da definição de identidade ambiental, o artigo compara os processos de transformação identitária que vêm ganhando lugar no Trapézio amazônico colombiano e no Arquipélago de San Andrés, por serem dois casos de redefinição histórica da etnicidade com referência ao meio geográfico, ao e [...] ncontro com a colombianidade, à agudização do discurso e às tensões que os capitais e os agentes institucionais ao redor do tradicional. Analisa-se o crescente turismo, a influência das agências de cooperação e seus efeitos no deslocamento do sagrado a uma "cultura teatral". Abstract in spanish Resumen A partir de la definición de identidad ambiental, el artículo compara los procesos de transformación identitaria que han tenido lugar en el Trapecio amazónico colombiano y en el Archipiélago de San Andrés, por cuanto son dos casos de redefinición histórica de la etnicidad con referencia al m [...] edio geográfico, al encuentro con la colombianidad, a la agudización del discurso y a las tensiones que los capitales y los agentes institucionales generan en torno a lo tradicional. Se analiza el creciente turismo, la influencia de las agencias de cooperación y sus efectos en el desplazamiento de lo sagrado hacia una "cultura teatral". Abstract in english Abstract The article compares the processes of identity transformation in the Colombian Amazon region and the Archipelago of San Andrés on the basis of the definition of environmental identity. These two cases illustrate the historical redefinition of ethnicity with respect to geographical environme [...] nt, the encounter with what it means to be Colombian, the intensification of discourse, and the tensions generated by the financial capital and the institutional agents around the traditions. The paper also discusses the growth of tourism, the influence of cooperation agencies, and their effects on the shift from the sacred toward a "theatrical culture".

De La Cruz, Pablo.

34

Evolución de la arquitectura fluvial en sucesiones del Plioceno-Pleistoceno del centro-este de Argentina (aloformación Punta San Andres)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Argentina | Language: Spanish Abstract in spanish Los depósitos de la Aloformación Punta San Andrés (Plio-Pleistoceno), registran la evolución de diferentes estilos de sistemas fluviales. Durante la primera etapa de la misma evolución, se desarrollaron sistemas de carga mixta, con canales de baja sinuosidad y alta participación de depósitos de plan [...] icie de inundación. Durante la segunda etapa, se verificó el cambio hacia un sistema de canales de mayor sinuosidad, entrelazados, donde los depósitos de planicie de inundación no tuvieron tanto protagonismo. Finalmente, la tercera etapa se caracterizó por el desarrollo de un sistema fluvial entrelazado clásico, sin preservación de depósitos de planicie de inundación. Durante la acumulación de la Aloformación Punta San Andrés, la glacioeustacia en asociación con el clima condicionó directamente el balance entre la tasa de generación de acomodación y el aporte sedimentario. Sin embargo, el análisis comparativo de los diversos índices e indicadores (arquitectura fluvial, paleosuelos, etc.) ha mostrado una variabilidad para los sistemas bajo estudio la cual puede asignarse a diferentes jerarquías de procesos. De esta manera, se identificaron ciclos de agradación fluvial representados por una alternancia de alta frecuencia entre paleosuelos vérticos y cálcicos. En este caso las fluctuaciones en el nivel de base fueron las responsables de los cambios cíclicos en la tasa de generación de espacio de acomodación y de aporte sedimentario. La evolución de los sistemas depositacionales identificados puede asignarse a ciclos de mayor jerarquía, los cuales controlaron el diseño del drenaje mediante cambios en el espacio de acomodación y representan cambios en la tasa de generación de espacio de acomodación relacionados a cambios glacieustáticos de escala global. Abstract in english The deposits of the Punta San Andrés Alloformation (Plio-Pleistocene) register the evolution of different styles of fluvial systems. During the first stage of this evolution, a mixed-load system was developed which included low-sinuosity channels and a high participation of floodplain deposits. Duri [...] ng the second stage the system shifted towards a higher sinuosity, braided fluvial system where the floodplain deposits didn't have so much participation. Finally, the third stage was characterized by the development of a classic braided fluvial system, without any preservation of floodplain deposits. During the Punta San Andrés Alloformation accummulation, glaci-eustatic changes and climate exerted a fundamental control on the balance between generation of accommodation space rate and sedimentary supply. Nevertheless, comparative analysis of the diverse indicators (fluvial architecture, paleosols, etc.) has shown a strong variability for the studied depositional systems that can be assigned to different process hierarchies. In this way, fluvial aggradational cycles are represented by high-frequency alternation between calcic and vertic paleosols. In this case, base level fluctuations were responsible for the cyclic accommodation rate - sediment supply change. The evolution of the identified depositional systems can be assigned to higher-order cycles, which controlled drainage design by changes in accommodation space and represents changes in the rate of generation of accommodation space linked to glaci-eustatic changes at a global scale.

Elisa, Beilinson.

35

Graafikatriennaali peapreemia Andres Talile  

Index Scriptorium Estoniae

Tallinna XII graafikatriennaali preemiad: grand prix - Andres Tali; 3 võrdset preemiat - Janne Laine, Leonards Laganovskis, Peeter Laurits; diplomid - Lynne Allen, Lucrecia Urbano, Vladimir Tshaika, Zora Stanè, Endi Poskovic, Päivikki Kallio; EKM preemia - Tif Bitmap; Tallinna linna preemia - Ülle Marks ja Jüri Kass; eripreemiad: - J. Laine (Eesti Pank), Vive Tolli (Paletti Eesti AS), Martins Ratniksh, Juris Boiko, T. Bitmap (Balteco AS). Žürii koosseis

2001-01-01

36

Mesh generation in archipelagos:  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A new mesh size field is presented that is specifically designed for efficient meshing of highly irregular oceanic domains: archipelagos. The new approach is based on the standard mesh size field that uses the proximity to the nearest coastline. Here, the proximities to the two nearest coastlines are used to calculate the distance between two islands or the width of a strait through an archipelago. The local value of the mesh size field is taken as the width (or distance between two islands) ...

Terwisscha Scheltinga, A.; Myers, P. G.; Pietrzak, J. D.

2012-01-01

37

Maailmaparandajad / Ole Ry, Susanne Andres  

Index Scriptorium Estoniae

Terapeudid Ole Ry ja Susanne Andres räägivad Dr David Berceli loodud TRE (Tension & Trauma Releasing Exercises) harjutuste kasutamise kogemusest erinevate psüühiliste traumade ja pingetega klientide tervise parandamisel

Ry, Ole

2012-01-01

38

Reading the archipelago  

Directory of Open Access Journals (Sweden)

Full Text Available [First paragraph] A History of Literature in the Caribbean, Volume 3: Cross-Cultural Studies. JAMES A. ARNOLD (ed.. Philadelphia: John Benjamins, 1997. xvii + 399 pp. (Cloth US$ 120.00 The Other America: Caribbean Literature in a New World Context. J. MICHAEL DASH. Charlottesville: University of Virginia Press, 1998. xii + 197 pp. (Cloth US$ 42.50, Paper US$ 18.50 In his most recent theoretical work, Traite du Tout-Monde, Edouard Glissant stresses the virtues of what he calls "archipelagic thinking." "The entire world is becoming an archipelago," he asserts (1997:194, and for this reason we need to distance ourselves from both insular and continental ways of thinking if we are to register the complexities of that global creolization process. The archipelago is situated between the solitary confines of the islands that constitute it and the expansive territory of the mainland toward which it points, relating the one to the other while retaining its own indeterminately distinct identity. For Glissant, actual archipelagos such as the Caribbean are exemplary sites for understanding the complex new relations that ambivalently and chaotically join together all the hitherto unconnected parts of the world. As a consequence of this, the need for understanding the Caribbean as an archipelago becomes ever more pressing: the Caribbean must be considered in its archipelagic totality, as a region that can only be adequately understood through comparative, cross-cultural analysis focusing less on its discrete parts than on the way these parts exist in relation with and to one another.

Chris Bongie

1999-01-01

39

Andres Kollist teadusraamatukogude nõukogu esimeheks  

Index Scriptorium Estoniae

8. sept. 2009 valis teadusraamatukogude nõukogu oma uueks esimeheks Tallinna Ülikooli Akadeemilise Raamatukogu direktori Andres Kollisti, senine nõukogu esimees Martin Hallik astus kohalt tagasi ning pühendus ELNET Konsortsiumi juhatuse esimehena raamatukogude avalike huvide eest seismisele

2009-01-01

40

Sucesión temprana de la taxocenosis Mollusca-Annelida-Crustacea en raíces sumergidas de mangle rojo en San Andrés Isla, Caribe colombiano / Early succession of the taxocenosis Mollusca-Annelida-Crustacea on red mangrove submerged roots in San Andres Island, Colombian Caribbean  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish Se analizó la sucesión temprana de los taxa Annelida, Mollusca y Crustacea asociados a las raíces sumergidas de Rhizophora mangle (mangle rojo), empleando ramas del mismo como sustrato artificial (unidades experimentales). El análisis se relacionó con algunas variables físico-químicas y ambientales [...] durante 188 días en San Andrés Isla, entre noviembre 2002 y mayo 2003, en tres estaciones de dos bahías, Hooker y Honda. Se identificaron 34.175 individuos en 130 unidades experimentales, los anélidos mostraron la mayor proporción (77,1%). Se generó un análisis de ordenación y clasificación (dendrograma y un escalamiento multidimensional no métrico-NMDS) para cada uno de los tres taxa estudiados. Los análisis revelaron débil similaridad entre la parte interna de Bahía Hooker y las estaciones restantes. Se calcularon los índices de diversidad de Shannon-Wiener, uniformidad de Pielou, riqueza de Margalef y predominio de Simpson a lo largo del estudio; los tres primeros presentaron mayores valores en Bahía Hooker que en Honda, mientras que el índice de predominio fue mayor en Bahía Honda. Hubo organismos pioneros como el anélido Spirorbis sp. y transitorios como los crustáceos; los moluscos parecieron necesitar periodos más prolongados para asentarse. Estas respuestas revelan que características geomorfológicas, presencia o ausencia de corrientes de agua dulce, mareas y lluvias, principalmente, y factores antrópicos pueden influir en el desarrollo de estas comunidades. Dispersión larval y proximidad con otros ecosistemas aumentan o disminuyen las poblaciones; sólo algunos organismos adaptados a condiciones extremas se establecen y mantienen en el área. Bajo condiciones favorables, la abundancia y diversidad de especies tienden a aumentar Abstract in english The early succession of the taxa Annelida, Mollusca and Crustacea on Rhizophora mangle (red mangrove) submerged roots was analyzed using old branches as ground (which were the experimental units) in San Andres Island. The analysis was related to some physico-chemical and environmental variables duri [...] ng 188 days, between November/2002 and May/2003, in Hooker and Honda bays. A total of 34,175 individuals in 130 experimental units were counted, where the annelids represented the largest proportion (77.1%) from the whole sample. A dendrogram and a nonmetric multidimensional scaling (NMDS) were constructed for each one of the three studied taxa. The analyses showed a weak similarity between the internal part of the Hooker Bay and the remaining stations. Shannon-Wiener diversity, Pielou evenness, Margalef richness and Simpson predominance indexes were calculated throughout the study; the three first indices showed greater values in Hooker Bay than in Honda Bay, while the predominance index was greater in Bay Honda. There were pioneers organisms such as Spirorbis sp., and transient ones, such as crustaceans, whilst molluscs seemed to need longer periods to settle in. These responses reveal that geomorphological characteristics, presence or absence of freshwater currents, tides and rainfall mainly, as well as anthropic factors can influence the development of these communities. Larval dispersion and the proximity to other ecosystems increase or reduce the populations, and only some organisms, adapted to extreme conditions, settle down and maintain in the area. Under favorable conditions, abundance and species diversity tend to increase

Patricia E, Romero-Murillo; Jaime, Polanía.

 
 
 
 
41

Alexander Archipelago, Southeastern Alaska  

Science.gov (United States)

West of British Columbia, Canada, and south of the Yukon Territory, the southeastern coastline of Alaska trails off into the islands of the Alexander Archipelago. The area is rugged and contains many long, U-shaped, glaciated valleys, many of which terminate at tidewater. The Alexander Archipelago is home to Glacier Bay National Park. The large bay that has two forks on its northern end is Glacier Bay itself. The eastern fork is Muir inlet, into which runs the Muir glacier, named for the famous Scottish-born naturalist John Muir. Glacier Bay opens up into the Icy Strait. The large, solid white area to the west is Brady Icefield, which terminates at the southern end in Brady's Glacier. To locate more interesting features from Glacier Bay National Park, take a look at the park service map. As recently as two hundred years ago, a massive ice field extended into Icy Strait and filled the Glacier Bay. Since that time, the area has experienced rapid deglaciation, with many large glaciers retreating 40, 60, even 80 km. While temperatures have increased in the region, it is still unclear whether the rapid recession is part of the natural cycle of tidewater glaciers or is an indicator of longer-term climate change. For more on Glacier Bay and climate change, read an online paper by Dr. Dorothy Hall, a MODIS Associate Science Team Member. Credit: Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC

2002-01-01

42

Cafe Lyon = Cafe Lyon / Andres Labi  

Index Scriptorium Estoniae

Cafe Lyon (Meistri 22, Tallinn) sisekujundusest. Autorid: Janno Roos, Andres Labi, Kristel Jakobson (Ruumilabor). Prantsuse Lütseumi direktori Lauri Leesi arvamus. Disainibüroo Ruumilabor lühitutvustus

Labi, Andres, 1977-

2013-01-01

43

Andres Ehin tähistas sünnipäeva raamatuesitlusega / Maire Kõrver  

Index Scriptorium Estoniae

Andres Ehin esitles oma luulekogu "Põdrapõrnikapääsukene" ja selle ingliskeelset tõlget "Moose Beetle Swallow" oma sünnipäeval Iiri suursaadiku residentsis, kus oli kohal ka luulekogu tõlkija, Iiri luuletaja Patrick Cotter

Kõrver, Maire, 1961-

2006-01-01

44

Andres Tarandi tööd tunnustati kõrge autasuga  

Index Scriptorium Estoniae

Euroopa Parlamendi saadik Andres Tarand sai silmapaistvate saavutuste eest Saksa Sotsiaaldemokraatliku Partei autasu nimega "Die Rote Bock". Tema ise peab seda tunnustuseks kogu Eesti sotsiaaldemokraatiale

2009-01-01

45

Vulkaner andre steder i Solsystemet  

DEFF Research Database (Denmark)

Der er vulkaner mange andre steder end på Jorden. De indre fire jordlignende planeter har, ligesom mange af solsystemets måner og asteroider, vulkaner, der dog for de flestes vedkommende er udslukte for mange hundrede millioner år siden. Der er direkte observeret vulkanudbrud på Jorden og på Jupiters måne, Io, og man regner man med at Venus og formentlig også Mars stadig er vulkansk aktive. Ved at rette blikket ud i solsystemet har vi  mulighed for at studere vulkansk aktivitet under helt anderledes betingelser end her på Jorden. Hvad sker der f.eks., hvis tyngdekraften er svagere, eller planetens overflade måske er gloende varm? Vulkanerne andre steder i Solsystemet overgår på mange måder dem på Jorden. Venus er den planet i solsystemet, der har flest vulkaner, Mars har de største og højeste vulkaner, asteroiden Vesta har de ældste, og Jupiters måne Io har de mest aktive vulkaner i solsystemet. De koldeste vulkaner findes på nogle af månerne i det ydre solsystem. Her er det ikke smeltet sten men derimod ammoniakvand, der strømmer ned og størkner på vulkanernes sider.

Haack, Henning

2007-01-01

46

Regional Oceanography of the Philippine Archipelago  

Directory of Open Access Journals (Sweden)

Full Text Available Confined by the intricate configuration of the Philippine Archipelago, forced by the monsoonal climate and tides, responding to the remote forcing from the open Pacific and adjacent seas of Southeast Asia, the internal Philippine seas present a challenging environment to both observe and model. The Philippine Experiment (PhilEx observations reported here provide a view of the regional oceanography for specific periods. Interaction with the western Pacific occurs by way of the shallow San Bernardino and Surigao straits. More significant interaction occurs via Mindoro and Panay straits with the South China Sea, which is connected to the open Pacific through Luzon Strait. The Mindoro/Panay throughflow reaches into the Sulu Sea and adjacent Bohol and Sibuyan seas via the Verde Island Passage and the straits of Tablas and Dipolog. The deep, isolated basins are ventilated by flow over confining topographic sills, causing upward displacement of older residence water, made more buoyant by vertical mixing, which is then exported to surrounding seas to close the overturning circulation circuit.

Arnold L. Gordon

2011-03-01

47

Surface Ocean Circulation and Dynamics in the Philippine Archipelago Region  

Science.gov (United States)

The dynamics of the seasonal surface circulation in the Philippine Archipelago (117E-128E, 0N-14N) are investigated using a high-resolution Regional Ocean Modeling System (ROMS) for the period of 2004 - March 2008. Three experiments are performed to estimate the relative importance of local, remote and tidal forcing. On annual mean, circulation in the Sulu Sea is dominated by the inflow from the South China Sea at the Mindoro and Balabac Straits, outflow into the Sulawesi Sea at the Sibutu Passage, and cyclonic circulation in the Sulu basin. A strong jet forms in the northeast Sulu Sea when currents from the Mindoro and Tablas Straits converge. Within the Archipelago, strong westward currents in the Bohol Sea carry the western Pacific (WP) Water from the Surigao Strait into the Sulu Sea via the Dipolog Strait. In the Sibuyan Sea, currents flow westward, which carry part of the WP water from the San Bernardino Strait into the Sulu Sea via the Tablas Strait. The surface circulations exhibit strong seasonal variations or reversals from winter to summer. The variations of volume transports above 40m at the Mindoro Strait, Balabac Strait and Sibutu Passage of the Sulu Sea and at the Verde Island Passage are dominated by remote forcing, although local forcing can be large sometimes. At the Tablas and Dipolog Straits, variations of transports result from both remote and local forcing. The cyclonic (anticyclonic) gyres during winter (summer) in the Sulu Sea and seasonally reversing currents in the Archipelago result mainly from local forcing. Nonlinear rectification of tides acts to reduce the mean transports at the Surigao, San Bernardino and Dipolog Straits, and it also affects the Sulu Sea circulation perhaps by tidal mixing and shifting the locations of jets and eddies.

Han, W.; Moore, A. M.; Levin, J.; Zhang, B.; Arango, H. G.; Curchitser, E.; di Lorenzo, E.; Gordon, A. L.; Lin, J.

2008-12-01

48

Igale inimesele oma inspektor? / Andre Nõmm  

Index Scriptorium Estoniae

Finantsinspektsiooni finantsjärelevalve divisjoni juhataja Andre Nõmm on seisukohal, et finantsinspektsiooni ülesanne ei ole valvata iga kodaniku finantsriski maandamist, vaid vastutust peab kandma iga inimene ise. Ometi on riigi eesmärk tõsta oma kodanike teadlikkust laenuturul valitsevatest ohtudest

Nõmm, Andre

2007-01-01

49

Andre on alati tantsida tahtnud / Anu Mõttus  

Index Scriptorium Estoniae

Koolitantsu maakonnavoorud on peetud. Igast maakonnast pääsevad piirkonnavooru kuni pooled tantsud. Umbes sama edasipääsuprotsent on ka Andre Laine tantsudel, kelle koolitantsu vaimustus algas Kanepi Gümnaasiumi õpilasena ja kes praeguseks on selle gümnaasiumi tantsupedagoog

Mõttus, Anu

2009-01-01

50

Venemaa lõhkise küna ees / Andres Herkel  

Index Scriptorium Estoniae

Autori hinnangul püüab Venemaa Lõuna-Osseetia ja Abhaasia endale jätta ning rahuvalveformaadi küsimus jääb tüliõunana üles. Viisavabadus EL-iga ja liitumine WTO-ga jäävad Venemaale ilmselt unistuseks. Artikkel pärineb Andres Herkeli ajaveebist www.herkel.net

Herkel, Andres, 1962-

2008-01-01

51

Generalized Andr\\'{e}-Quillen Cohomology  

CERN Document Server

We explain how the approach of Andre and Quillen to defining cohomology and homology as suitable derived functors extends to generalized (co)homology theories, and how this identification may be used to study the relationship between them. As a side benefit, we clarify exactly what assumptions on an (algebraic) category are needed in order for the approach of Beck and Andre-Quillen to work. We also show how the description may be applied to construct universal coefficient and reverse Adams spectral sequences.

Blanc, David

2008-01-01

52

Andres Võsand: hakkan ilmselt elukutseliseks kunstnikuks / Andres Võsand ; intervjueerinud Veiko Visnapuu  

Index Scriptorium Estoniae

Intervjuu Saksaamaal elava tennisisti Andres Võsandiga, kelle maalinäitus "Värvireisid" on avatud Kadriorus Kastellaanimaja Galeriis 30.10-28.11.2010. Tegelemisest maalikunstiga, näitusest, reisidest inspireeritud loomingust, tööst tennisetreenerina, tennisekarjäärist. Andmeid A. Võsandi elukäigu kohta

Võsand, Andres, 1966-

2010-01-01

53

Narcotráfico, violencia y crisis social en el Caribe insular colombiano: El caso de la isla de San Andrés en el contexto del Gran Caribe Drug Traffiking, Violence and the Social Crisis in Colombian Caribbean Islands: The Case of San Andrés Island in the Context of the Great Caribbean  

Directory of Open Access Journals (Sweden)

Full Text Available El presente artículo tiene por objetivo presentar un diagnóstico preliminar de la magnitud del tráfico de drogas, sus dinámicas, modalidades, y las condiciones sociales y económicas que favorecen el desarrollo de este negocio ilegal en la isla de San Andrés (Colombia. El análisis se desarrolla, no obstante, en el marco de la condición histórica y natural de "zona de tránsito" de drogas, armas y otros recursos ilegales, que se le atribuye a la región del Gran Caribe, entendida como un continuo geográfico, histórico y cultural en el que se observan patrones comunes en materia de amenazas a la seguridad, la geopolítica de las relaciones con Estados Unidos y los efectos sociales y económicos derivados del flagelo del narcotráfico. En este sentido, el caso de la isla de San Andrés (Colombia se examina más como parte de la dinámica insular gran caribeña que como parte de las tendencias propias del negocio en la Colombia continental, lo que permite, sin embargo, establecer las conexiones entre ambos espacios regionales -el insular y el continental- y, a la vez, evaluar el impacto regional del fenómeno a partir de las conexiones ilegales que desde el archipiélago se establecen con algunos países vecinos del Gran Caribe. Finalmente, se sostiene la hipótesis de que el fenómeno del narcotráfico se instala en la isla como resultado de factores geohistóricos, culturales y socioeconómicos que en conjunto han determinado la participación activa de distintos sectores de la sociedad en este negocio ilegal.The objective of thispaper is to present a preliminary diagnosis of the magnitude, dynamics, and modalities of drug trafficking, together with the social and economic conditions that support the development of this illegal activity in the island of San Andres (Colombia. Analysis is conducted within a framework that identifies this trafficking zone as a natural and historic corridor for trade in weapons, drugs, and other illicit materials typically attributed to the Great Caribbean where patterns of security threats, geopolitical relations with the United States, and social and economic impacts of the narcotrafficking epidemic are commonly observed. The article presents San Andres Island (Colombia as a case that adheres more to the insular dynamics of the Great Caribbean region rather than one that mimics the tendencies of continental Colombia. This perspective permits the establishment of connections between both regional spaces -insular and continental-, and simultaneously evaluates the phenomenon´s regional impact by exploring the illegal connections formed in the archipelago with neighboring Caribbean countries. Finally, the hypothesis is sustained that the trafficking phenomenon on the island is a result of historical, cultural and socio­economic factors that explain the active participation of certain sectors of the island´s society in these illegal activities.

Silvia Mantilla

2011-06-01

54

Eesti luule jookseb joonistatud pildis / Andres Laasik  

Index Scriptorium Estoniae

Animafilmikassett "Must lagi" seitsme eesti luuletaja luuletuse põhjal tehtud animafilmidega : Mati Küti - Ilmar Laabani "Substantia stellaris", Heiki Ernitsa - Arvi Siia "Tuled öös", Kaspar Jancise - Ago Künnapi "Viimane sigaret", Priit Tenderi - Andres Ehini "Taimne direktor", Janno Põldma - Heiti Talviku "Sügiseleegia", Priit Pärna - Jüri Üdi "Kuul kuklas", Ülo Pikkovi - Aleksander Suumani "Läänemerelinik" : Eesti Joonisfilm 2007

Laasik, Andres, 1960-

2007-01-01

55

Eesti fond rahastab Vene infotehnoloogiat / Andres Reimer  

Index Scriptorium Estoniae

Martinson Trigon Venture Partners (MTVP) loob uue tarkvarainvesteeringute fondi, mis viib endise NSVL-i alale kuni 780 miljonit krooni, fond võtab sihiks kümmekond uut ettevõtet. MTVP esimese fondi investeeringutest. Fondide juhi Andres Susi selgitusi. Lisa: Martinson Trigon Venture Partners osalusega firmad; Vt. samas: Moskvas pole raha ja geeniused kohtunud

Reimer, Andres

2006-01-01

56

Island Movements: Thinking with the Archipelago  

Directory of Open Access Journals (Sweden)

Full Text Available Whether in Homer or Plato, Shakespeare or Huxley, throughout history, thinking about islands has shaped how we think about human nature and our place in the world. However, to date archipelagos have received far less attention. This is problematic because we live, increasingly, in a world of island-island movements and not static forms. Not only in the more obvious cases of the Caribbean, Hawaii or the Philippines but, as Stratford et al (2011 say, many ‘continental forms’ like Canada and Australia are in fact archipelagos composed of thousands of island movements. To this list we can add more manufactured archipelagos: wind turbine arrays, industrial oil and military constellations. The key question therefore arises: what does it mean to think with the archipelago? This paper argues firstly that archipelagic thinking denaturalizes the conceptual basis of space and place, and therefore engages ‘the spatial turn’ presently sweeping the social sciences and humanities. Secondly, such thinking highlights the trope of what I call ‘metamorphosis’, of the adaptation and transformation of material, cultural and political practices through island movements. In both cases, I argue that thinking with the archipelago requires an important shift in how we frame analysis and engagement.

Jonathan Pugh

2013-05-01

57

"Vettpidavad allikad" = "Watertight sources" / Janno Roos, Andres Labi  

Index Scriptorium Estoniae

Eesti Ajaloomuuseumis avatud näituse kujundasid Janno Roos ja Andres Labi (Ruumilabor). Kuraator Krista Sarv. Graafiline disain: Identity. Eksponeeritud allveeuuringute käigus leitu. Arhitektuuriajaloolase Leele Välja arvamus

Roos, Janno, 1976-

2013-01-01

58

Eestlane juhib Ukrainas EBRD investeeringuid / Andre Küüsvek ; interv. Henrik Ilves  

Index Scriptorium Estoniae

Seni Euroopa Rekonstruktsiooni- ja Arengupanga (EBRD) Kasahstani osakonda juhtinud Andre Küüsvek valiti juhtima EBRD investeeringuid Ukrainas. Tänavu on plaanis investeerida Ukrainas 1,5 mld. dollarit

Küüsvek, Andre

2008-01-01

59

Juubelitervitus (eks)avangardist Andres Toltsile / Eero Kangor  

Index Scriptorium Estoniae

Andres Toltsi isikunäitused "Näitus" (kuraator Harry Liivrand) Tallinna Kunstihoones 25. oktoobrini, "Asjad" Hobusepea galeriis 30. sept.-12. oktoobrini ja sünnipäevanäitus Haus Galeriis 13. novembrini

Kangor, Eero, 1982-

2009-01-01

60

Glider Surveys of Philippine Archipelago Seas.  

Science.gov (United States)

Gliders carried out four surveys in three regions of the archipelago. During JuneJuly 2007, one glider surveyed the Bohol Sea and the other the northeastern Sulu Sea. The Bohol Sea survey extended from the Surigao Strait opening at the northeastern end of...

C. M. Lee J. I. Gobat J. P. Martin

2011-01-01

 
 
 
 
61

Island biogeography of Galápagos lava lizards (Tropiduridae: Microlophus): species diversity and colonization of the archipelago.  

Science.gov (United States)

The "lava lizards" (Microlophus) are distributed throughout the Galápagos Archipelago, and consist of radiations derived from two independent colonizations. The "Eastern Radiation" includes M. bivittatus and M. habeli endemic to San Cristobal and Marchena Islands. The "Western Radiation" includes five to seven historically recognized species distributed across almost the entire Archipelago. We combine dense geographic sampling and multilocus sequence data to estimate a phylogenetic hypothesis for the Western Radiation, to delimit species boundaries in this radiation, and to estimate a time frame for colonization events. Our phylogenetic hypothesis rejects two earlier topologies for the Western Radiation and paraphyly of M. albemarlensis, while providing strong support for single colonizations on each island. The colonization history implied by our phylogeny is consistent with general expectations of an east-to-west route predicted by the putative age of island groups, and prevailing ocean currents in the Archipelago. Additionally, combined evidence suggests that M. indefatigabilis from Santa Fe should be recognized as a full species. Finally, molecular divergence estimates suggest that the two colonization events likely occurred on the oldest existing islands, and the Western Radiation represents a recent radiation that, in most cases, has produced species that are considerably younger than the islands they inhabit. PMID:19154379

Benavides, Edgar; Baum, Rebecca; Snell, Heidi M; Snell, Howard L; Sites, Jack W

2009-06-01

62

[Taxonomy and distribution of the hermatypic corals (Scleractinia) of the Revillagigedo Archipelago, Mexico].  

Science.gov (United States)

In spite of some recent detailed accounts about the scleractinian corals of the Archipiélago de Revillagigedo, taxonomic work on this fauna has been sparse. Consequently, solid taxonomic background is needed, especially to support further studies at community level. During five field trips (between 1990 and 1995) collections were made at different depths on three of the archipelago islands: Socorro, Clarión and San Benedicto. A total of 250 specimens were collected. Coral identifications were made using co-occurrence methods concomitant with their descriptions, diagnosis and illustrations from a number of publications, and with morphological analysis. Coral distributions were taken from literature. Twenty-two species of zooxanthellate scleractinian corals are described, with their local and world-wide geographic distribution, and each illustrated with macro and microphotographs. Keys to the genera and species of the archipelago are also included. Porites and Pocillopora exhibit the highest species richness with a great intraspecific variation, as well as a number of morphological convergences within and between species which form species complexes, and several new species and morphs. Clarion, the oldest and most isolated island of the archipelago, harbors a number of coral morphs that are probable new species. More than half of the species found at the Revillagigedos are distributed exclusively on oceanic islands of the eastern Pacific and close to one third exist only at this archipelago. The Revillagigedos have strong faunal similarities and share a number of endemics with Clipperton Atoll, all of which support the idea that these islands constitute a separate biogeographic subregion within the eastern Pacific. Lastly, the present document substantiates the hypothesis that the Revillagigedos are important stepping-stone islands for the migration of in-shore marine species from the Central to the eastern Pacific. PMID:12189813

Ketchum, J T; Reyes Bonilla, H

2001-01-01

63

Investigating the multifractality of point precipitation in the Madeira archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The purpose of this work is to contribute to a better understanding of the variability of precipitation in the Madeira archipelago. This archipelago is located in the Atlantic subtropical belt under the direct influence of the Azores high pressure system. It is formed by Madeira Island (728 km2) and Porto Santo Island (42 km2) and by two other groups of very small inhabited islands. The complex topography of the islands in the Madeira archipelago ...

Lima, M. I. P.; Lima, J. L. M. P.

2009-01-01

64

Põlvas tuli esitusele Andre Laine 29 tantsu / Mati Määrits  

Index Scriptorium Estoniae

Põlva Kultuuri- ja Huvikeskuses sai näha Põlvamaa Koolitantsu maakondlikku eelvooru. 52st tantsust 29 tantsu autor on Andre Laine. Kommenteerib ka Tartu Ülikooli Viljandi Kultuuriakadeemia lavakunstide osakonna tantsukunsti õppejõud Kai Valtna

Määrits, Mati, 1958-

2008-01-01

65

Andres Noormets : filmilik fantaasiateater lohe ja armastusega / Dea Martinjonis  

Index Scriptorium Estoniae

"Meremaa võlur. Päeva kaldad", näidend Ursula K Le Guini "Meremaa võluri" teemadel, kirjutanud Andreas W ja lavastanud Andres Noormets, kunstnik Silver Vahtre, valguskunstnik Airi Eras, helikujundaja ja videograafik Andreas W. Esietendus Ugalas 29. aprillil

Martinjonis, Dea

1999-01-01

66

Alvis Hermanis - ma ütlen ... Ehk jõuab Eestissegi / Andres Keil  

Index Scriptorium Estoniae

Lätlaste teatrifestivalist "Spelmanu Nakts" ("Showcase") ja muljeid nähtud etendustest. Ka Valmiera Draamateatrist, kus viimased aastad töötab eestlane Jaanus Johanson ja kus praegu Andres Lepik lavastab Andrus Kivirähki "Eesti matust"

Keil, Andres, 1974-

2006-01-01

67

Eesti kirjanduse häbiplekk trügib Riigikokku! : [Andres Ehin : Följeton] / Lembit Lermo  

Index Scriptorium Estoniae

Vastukaja? : Metsa, Richard-Teodor. Mitte Ehin ei ajanud tülli Laari ja Kama // Nädaline. - 1995. - 3. märts. - Lk. 2 ; Sees, Andres. Ärge laske Ehinil Riigikogus jaurata! // Nädaline. - 1995. - 3. märts. - Lk. 2

Lermo, Lembit

1995-01-01

68

Kommest Auto ostmisest huvitub ka Hillar Teder / Andres Eilart  

Index Scriptorium Estoniae

Kommest Auto ostmise vastu tunnevad huvi suurärimees Andres Sarri, Rootsis Peugeot' sõidukeid müüv Taani päritolu K. W. Bruun Import ja multimiljonär Hillar Teder, kellele kuulub Audisid müüv Reval Auto

Eilart, Andres

2008-01-01

69

Raio Piiroja : mängijatest ei suudetud maksimumi pigistada / Andres Kalvik  

Index Scriptorium Estoniae

Vt. ka Postimees : na russkom jazõke 19. nov., lk. 13. Eesti koondis võlgneb EM-valikturniiri viimase kohtumise 2:0 Andorra üle suuresti Andres Operile. Kommenteerib Andorra koondise peatreener David Rodrigo

Kalvik, Andres, 1982-

2007-01-01

70

Peaosa nii teatrilaval kui ka kinolinal / Andres Laasik  

Index Scriptorium Estoniae

Natalja Murina-Puustusmaast, kes mängib peaosa Vene Teatri uuslavastuses "Besame mucho", mille Afolf Käis on lavastanud Eduardo de Filippo näidendi "Silinder" järgi, ja Andres Puustusmaa filmis "Rotilõks", mille võtted algavad peagi

Laasik, Andres, 1960-

2010-01-01

71

Eesti Energia esindused = Eesti Energia branches / Andres Labi, Janno Roos  

Index Scriptorium Estoniae

Eesti Energia klienditeeninduse kontorite sisekujundusest. Autorid: Janno Roos, Andres Labi ja Liisa Põime (Ruumilabor). Visuaalne identiteet: Tank.Teenuste disain: Urmas Pastarus. ESLi aastapreemiate žürii esimehe Kaido Kivi ning žürii liikme Raivo Puusepa arvamused

Labi, Andres, 1977-

2013-01-01

72

Andres Tarand tõi omale kohvris Ameerikast puu / Kai Ilustrumm  

Index Scriptorium Estoniae

Ilmunud ka: Linnaleht : Tartu ; Linnaleht : Pärnu B2-B3. Männiistikute istutamine VELUX katuseakende töötajate eestvõtmisel Ohtu turbaraba lähedal. Külastati Andres ja Mari Tarandi Vihterpalus Keibul asuvat maakodu ning liigirikast metsa

Ilustrumm, Kai

2003-01-01

73

Andres Puustusmaa - mees nagu jalgratas ehk Seitseteist kevadist hetke enne Moskva rongi väljumist / Andres Puustusmaa ; interv. Margus Mikomägi  

Index Scriptorium Estoniae

Venemaal tegutseva Eestist pärit režissööri Andres Puustusmaa mängufilm "18-14" esilinastub 10. jaanuaril Eestis. Lisaks tõlge filmi tutvustavast tekstist (www.1814.ru) : "Tsarskoje Selo Kõrilõikaja ja lütseumi kasvandikud". Artikkel rubriigis "Teatriküljed 1/25"

Puustusmaa, Andres

2008-01-01

74

STUDY OF DENSITY AND COVERING SEAGRASS AT SPERMONDE ARCHIPELAGO  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Study of density and covering seagrass at Spermonde Archipelago was carried out during May 2012 until November 2012. The study included density and percentage cover. Namely 7 species of seagrasses Enhalus acoroides, Cymodocea rotundata, Syringodium isoetifolium, Thalassia hemprichii, Halodule uninervis, Halophila ovalis and H. minorwere collected at Spermonde Archipelago. Enhalus acoroides was recorded as the most dominant species and Syringodium isoetifolium was the limit species at Bone Ba...

Abdul Haris2; Benny Audi Jaya Gosari1

2013-01-01

75

Seasonal surface ocean circulation and dynamics in the Philippine Archipelago region during 2004-2008  

Science.gov (United States)

The dynamics of the seasonal surface circulation in the Philippine Archipelago (117°E-128°E, 0°N-14°N) are investigated using a high-resolution configuration of the Regional Ocean Modeling System (ROMS) for the period of January 2004-March 2008. Three experiments were performed to estimate the relative importance of local, remote and tidal forcing. On the annual mean, the circulation in the Sulu Sea shows inflow from the South China Sea at the Mindoro and Balabac Straits, outflow into the Sulawesi Sea at the Sibutu Passage, and cyclonic circulation in the southern basin. A strong jet with a maximum speed exceeding 100 cm s -1 forms in the northeast Sulu Sea where currents from the Mindoro and Tablas Straits converge. Within the Archipelago, strong westward currents in the Bohol Sea carry the surface water of the western Pacific (WP) from the Surigao Strait into the Sulu Sea via the Dipolog Strait. In the Sibuyan Sea, currents flow westward, which carry the surface water from the WP near the San Bernardino Strait into the Sulu Sea via the Tablas Strait. These surface currents exhibit strong variations or reversals from winter to summer. The cyclonic (anticyclonic) circulation during winter (summer) in the Sulu Sea and seasonally reversing currents within the Archipelago region during the peak of the winter (summer) monsoon result mainly from local wind forcing, while remote forcing dominates the current variations at the Mindoro Strait, western Sulu Sea and Sibutu passage before the monsoons reach their peaks. The temporal variations (with the mean removed), also referred to as anomalies, of volume transports in the upper 40 m at eight major Straits are caused predominantly by remote forcing, although local forcing can be large during sometime of a year. For example, at the Mindoro Strait, the correlation between the time series of transport anomalies due to total forcing (local, remote and tides) and that due only to the remote forcing is 0.81 above 95% significance, comparing to the correlation of 0.64 between the total and local forcing. Similarly, at the Sibutu Passage, the correlation is 0.96 for total versus remote effects, comparing to 0.53 for total versus local forcing. The standard deviations of transports from the total, remote and local effects are 0.59 Sv, 0.50 Sv, and 0.36 Sv, respectively, at the Mindoro Strait; and 1.21 Sv, 1.13 Sv, and 0.59 Sv at the Sibutu Passage. Nonlinear rectification of tides reduces the mean westward transports at the Surigao, San Bernardino and Dipolog Straits, and it also has non-negligible influence on the seasonal circulation in the Sulu Sea.

Han, Weiqing; Moore, Andrew M.; Levin, Julia; Zhang, Bin; Arango, Hernan G.; Curchitser, Enrique; Di Lorenzo, Emanuele; Gordon, Arnold L.; Lin, Jialin

2009-06-01

76

Narcotráfico, violencia y crisis social en el Caribe insular colombiano: El caso de la isla de San Andrés en el contexto del Gran Caribe / Drug Traffiking, Violence and the Social Crisis in Colombian Caribbean Islands: The Case of San Andrés Island in the Context of the Great Caribbean  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in spanish El presente artículo tiene por objetivo presentar un diagnóstico preliminar de la magnitud del tráfico de drogas, sus dinámicas, modalidades, y las condiciones sociales y económicas que favorecen el desarrollo de este negocio ilegal en la isla de San Andrés (Colombia). El análisis se desarrolla, no [...] obstante, en el marco de la condición histórica y natural de "zona de tránsito" de drogas, armas y otros recursos ilegales, que se le atribuye a la región del Gran Caribe, entendida como un continuo geográfico, histórico y cultural en el que se observan patrones comunes en materia de amenazas a la seguridad, la geopolítica de las relaciones con Estados Unidos y los efectos sociales y económicos derivados del flagelo del narcotráfico. En este sentido, el caso de la isla de San Andrés (Colombia) se examina más como parte de la dinámica insular gran caribeña que como parte de las tendencias propias del negocio en la Colombia continental, lo que permite, sin embargo, establecer las conexiones entre ambos espacios regionales -el insular y el continental- y, a la vez, evaluar el impacto regional del fenómeno a partir de las conexiones ilegales que desde el archipiélago se establecen con algunos países vecinos del Gran Caribe. Finalmente, se sostiene la hipótesis de que el fenómeno del narcotráfico se instala en la isla como resultado de factores geohistóricos, culturales y socioeconómicos que en conjunto han determinado la participación activa de distintos sectores de la sociedad en este negocio ilegal. Abstract in english The objective of thispaper is to present a preliminary diagnosis of the magnitude, dynamics, and modalities of drug trafficking, together with the social and economic conditions that support the development of this illegal activity in the island of San Andres (Colombia). Analysis is conducted within [...] a framework that identifies this trafficking zone as a natural and historic corridor for trade in weapons, drugs, and other illicit materials typically attributed to the Great Caribbean where patterns of security threats, geopolitical relations with the United States, and social and economic impacts of the narcotrafficking epidemic are commonly observed. The article presents San Andres Island (Colombia) as a case that adheres more to the insular dynamics of the Great Caribbean region rather than one that mimics the tendencies of continental Colombia. This perspective permits the establishment of connections between both regional spaces -insular and continental-, and simultaneously evaluates the phenomenon´s regional impact by exploring the illegal connections formed in the archipelago with neighboring Caribbean countries. Finally, the hypothesis is sustained that the trafficking phenomenon on the island is a result of historical, cultural and socio­economic factors that explain the active participation of certain sectors of the island´s society in these illegal activities.

Silvia, Mantilla.

77

Väikesed kiirlaevad tulevad Soome lahele tagasi / Andres Reimer  

Index Scriptorium Estoniae

Väikesed kiirlaevafirmad on lahkunud Tallinna-Helsingi liinilt, samas on Nordic Jetline'il endiselt 2009. a. kaibroneering Tallinna sadamas. LindaLine toob Eestisse uue katamaraani. Tallinki juhatuse liige Andres Hunt ja Viking Line'i Eesti juht Inno Borodenko kiirlaevaliinide lahkumise põhjustest. Diagramm, graafik. Kommenteerib Sari Hujanen

Reimer, Andres

2008-01-01

78

Baltoscandal on lõppenud, uued mõtted on saadud / Andres Keil  

Index Scriptorium Estoniae

Eesti teater oli Baltoscandalil koondatud olematu teatri mõiste alla. Andres Noormetsa "Reunioon", Mart Kangro ja Ansambel U "Mäng", Marco Laimre "Vangistus", Asko Künnapi "Säälpool jõge", Anders Härmi "Cooking and Shitting", Sven Kuntu "Miks Eesti mehed ei tantsi?", Linnar Priimäe "Inimese lõhn"

Keil, Andres, 1974-

2006-01-01

79

Vabaduse väljak / Andres Alver, Veljo Kaasik, Tiit Trummal  

Index Scriptorium Estoniae

Tallinna Vabaduse väljaku rekonstrueerimisest. Intervjuu vormis 1998. a. võistluse kontseptsioonist, selle muutumisest, tänase väljaku lahendusest, realiseerunud situatsioonist, edasisest arengust. Arhitektid Andres Alver, Tiit Trummal ja Veljo Kaasik, projekteerija ja konstruktor Sweco Projekt, väljakuinventari disainer Arvo Pärenson. Projekt 2008-2009, valmis 2009

Alver, Andres, 1953-

2009-01-01

80

Tallinna Lennujaama kauba- ja tolliterminaal. Lennujaama 2, Tallinn / Andres Põime  

Index Scriptorium Estoniae

Kaubateeninduskeskuse puhul on tegemist suure, plaanimõõtudes 36x102 meetrise metallkonstruktsioonis, sandwich tüüpi paneelidega kaetud laohoonega, kus ühelt poolt tuuakse tollitav kaup lennukitelt sisse ja teiselt poolt viiakse tollitud kaup välja. Peatöövõtja : Normanni Linnagrupi AS. Ehitaja : Merko. Peaprojekteerija : K-Projekt. Arhitektuurne lahendus : Stuudio 3. Arhitekt Andres Põime ; töögrupp Vivian Oruvee, Tiiu Raudsepp, Reet Põime. Projekt 1997-98, valmis 1998.

Põime, Andres

1998-01-01

 
 
 
 
81

Edukas ehitaja tegeleb ka arendusega / Andres Koger ; ref. Heli Lehtsaar  

Index Scriptorium Estoniae

Ilmunud ka: Delovõje Vedomosti 8. okt. lk. 15. Ehitusfirma Koger & Partnerid juhataja Andres Kogeri ettekandest Äripäeva konverentsil Äriplaan 2004. Ettekandja sõnul on ehituses edukad need, kes ühendavad ehituse, arenduse ja suhted. Soovitused ehitajatele. Kommenteerib Avo Lillemäe. Vt samas: Ehitusturgu suunavad elamuehitus ja eurorahad. Diagramm: Merkol suur tükk ehitusturgu

Koger, Andres, 1961-

2003-01-01

82

"Octagon Magic": Andre Norton and Revitalizing the Girls' Book.  

Science.gov (United States)

Argues that Andre Norton's "Octagon Magic" is neither a conventional girls' book, nor a witch tale, nor a time fantasy but rather a unique coming-of-age story best understood within the context of theorists such as Carol Gilligan, Mary Belenk, and Jean Baker Miller. (TB)

Dressel, Janice Hartwick; Molson, Francis J.

1996-01-01

83

New geological data of New Siberian Archipelago  

Science.gov (United States)

The area of New Siberian Archipelago (NSA) encompasses different tectonic blocks is a clue for reconstruction of geological structure and geodynamic evolution of East Arctic. According to palaeomagnetic study two parts of the archipelago - Bennett and Anjou Islands formed a single continental block at least from the Early Palaeozoic. Isotope dating of De Long Islands igneous and sedimentary rocks suggests Neoproterozoic (Baikalian) age of its basement. The De Long platform sedimentary cover may be subdivided into two complexes: (1) intermediate of PZ-J variously deformed and metamorphosed rocks and (2) K-KZ of weakly lithified sediments. The former complex comprises the Cambrian riftogenic volcanic-clastic member which overlain by Cambrian-Ordovician turbiditic sequence, deposited on a continental margin. This Lower Palaeozoic complex is unconformably overlain by Early Cretaceous (K-Ar age of c.120 Ma) basalts with HALIP petrochemical affinities. In Anjou Islands the intermediate sedimentary complex encompasses the lower Ordovician -Lower Carboniferous sequence of shallow-marine limestone and subordinate dolomite, mudstone and sandstone that bear fossils characteristic of the Siberian biogeographic province. The upper Mid Carboniferous - Jurassic part is dominated by shallow-marine clastic sediments, mainly clays. The K-KZ complex rests upon the lower one with angular unconformity and consists mainly of coal-bearing clastic sediments with rhyolite lavas and tuffs in the bottom (117-110 Ma by K-Ar) while the complexe's upper part contains intraplate alkalic basalt and Neogene-Quaternary limburgite. The De-Long-Anjou block's features of geology and evolution resemble those of Wrangel Island located some 1000 km eastward. The Laptev Sea shelf outcrops in intrashelf rises (Belkovsky and Stolbovoy Islands) where its geology and structure may be observed directly. On Belkovsky Island non-dislocated Oligocene-Miocene sedimentary cover of littoral-marine coal-bearing unconformably overlies folded basement. The latter encompasses two sedimentary units: the Middle Devonian shallow-marine carbonate and Late-Devonian-Permian olistostrome - flysch deposited in transitional environment from carbonate platform to passive margin. Dating of detrital zircons suggests the Siberian Platform and Taimyr-Severnaya Zemlya areas as the most possible provenance. The magmatic activity on Belkovsky Island resulted in formation of Early Triassic gabbro-dolerite similar to the Siberian Platform traps. Proximity of Belkovsky Island to the north of Verkhoyansk foldbelt allows continuation of the latter into the Laptev Sea shelf. The geology of Bolshoy Lyakhovsky Island is discrepant from the rest of the NSA. In the south of Bolshoy Lyakhovsky Island the ophiolite crops complex out: it is composed of tectonic melange of serpentinized peridotite, bandedf gabbro, pillow-basalt, and pelagic sediments (black shales and cherts). All the rocks underwent epidot - amphibolite, glaucophane and greenschist facies metamorphism. The ophiolite is intruded by various in composition igneous massifs - from gabbro-diorite to leuco-granite, which occurred at 110-120 Ma. The Bolshoy Lyakhovsky Island structure is thought to be a westerly continuation of the South Anui suture of Chukchi.

Sobolev, Nikolay; Petrov, Evgeniy

2014-05-01

84

The influence of the geological setting on the morphogenetic evolution of the Tremiti Archipelago (Apulia, Southeastern Italy  

Directory of Open Access Journals (Sweden)

Full Text Available The Tremiti Archipelago (Southern Adriatic Sea, also called Insulae Diomedae from the name of the Greek hero who first landed there, is an area of high landscape and historical value. It is severely affected by significant geomorphologic processes dominated by mass movements along the coast that constitute the most important and unpredictable natural hazard for the population and cultural heritage. Coastal erosion is favoured by the peculiar geological and structural setting, seismic activity, weathering, development of karst processes, and wave action. The present paper reports on descriptive and qualitative evaluation of the factors controlling landslides and coastline changes based on medium-term in situ observation, detailed surface surveys at selected locations since 1995, and historic and bibliographic data. The Tremiti Archipelago is part of an active seismic area characterised by a shear zone separating two segments of the Adriatic microplate that have shown different behaviour and roll back rates in the subduction underneath the Apennines since middle Pleistocene. Although coastal morphology can be basically considered to be the result of wave action, the continual action of subaerial processes contributes effectively to the mechanism of shoreline degradation. Weathering mainly affects the marly calcisiltites and calcilutites of the Cretaccio Fm. and the friable and low cemented calcarenites and biomicrites of the San Nicola Fm. The cliffs are characterised by different types of failure such as lateral spreads, secondary topples, rock falls and slides. At the Isle of San Nicola, landslides are controlled by the contrast in competence, shear strength and stiffness between the Pliocene re-crystallised dolomitic calcarenites and calcisiltites and the Miocene marly calcilutites and calcisiltites. At the Isles of San Domino and Caprara rock falls are attributed to the undercutting of waves at the base of the cliffs.

G. F. Andriani

2005-01-01

85

Mida teeks tulevane kultuuriminister 500 miljoni krooniga? / interv. Andres Keil  

Index Scriptorium Estoniae

Suuremate erakondade kultuurispetsialistid (kultuuriministrikandidaadid) Urmas Paet, Andres Herkel, Peeter Jalakas, Indrek Saar, Jaak Allik, samuti kultuuriminister Raivo Palmaru vastavad küsimustele, mis on suurimad ohud eesti keele ja rahvuskultuuri säilimisele, milline on kultuuriministeeriumi ja -ministri portfelli staatus praeguses valitsuses, kas kultuuri rahastamine riigieelarvest on piisav, mille poolest erineb nende erakonna nägemus kultuuripoliitikast teiste erakondade omast, kuhu nad suunaksid 50, 500 miljonit, kui see oleks nende käsutuses

2007-01-01

86

Film, ruum ja narratiiv : "Mis juhtus Andres Lapeteusega?" ning "Viini postmark" / Eva Näripea  

Index Scriptorium Estoniae

Analüüsitakse narratiivi aegruumi loomise viise juhtumi analüüsi vormis, vaadeldes kaht eesti mängufilmi : G. Kromanovi "Mis juhtus Andres Lapeteusega?" (Tallinnfilm, 1966) ja Veljo Käsperi "Viini postmark" (Tallinnfilm, 1967)

Näripea, Eva

2006-01-01

87

Film, ruum ja narratiiv : "Mis juhtus Andres Lapeteusega?" ning "Viini postmark" / Eva Näripea  

Index Scriptorium Estoniae

Analüüsitakse narratiivi aegruumi loomise viise juhtumi analüüsi vormis, vaadeldes kaht eesti mängufilmi : G. Kromanovi "Mis juhtus Andres Lapeteusega?" (Tallinnfilm, 1966) ja Veljo Käsperi "Viini postmark" (Tallinnfilm, 1967)

Näripea, Eva, 1980-

2011-01-01

88

The flow of radionuclides through the Canadian archipelago  

International Nuclear Information System (INIS)

The transport of contaminants to the Canadian Arctic by air and in water and their concentration through the marine food web has lead to enhanced levels of contaminants in several foods of Canadian northern inhabitants. Artificial radionuclides in the marine water can be used to determine water circulation and to trace contaminant transport through the Canadian Archipelago

1999-07-01

89

Checklist of the Benthic Marine Plants of the Madeira Archipelago.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A checklist of the benthic marine plants of the archipelago of Madeira is presented based on published information and personal observations. This list includes 1 Spermatophyte and 359 algal species, comprising 64 Chlorophycota, 64 Chromophycota and 231 Rhodophycota. Fifteen doubtful records for the area are also included.

Neto, Ana I.; Cravo, D. C.; Haroun, R. T.

2001-01-01

90

A conservation strategy in San Andres Island: school projects and values in environmental education  

International Nuclear Information System (INIS)

With the scope of showing and preserving an island endangered species, the Swanka turtle, a campaign and an environmental education program were conducted. The campaign consisted in showing the species to the community, its characteristics and its threats, through mass media and visits to different local schools. The environmental education program was carried out through a Scholar Environmental Project, which consisted on the conformation of an environmental group, where cognitive, attitudinal and participative aspects were worked together. Using a constrictive methodology the children developed some knowledge about the species and Its habitats. The scope was that they modified attitudes and behaviors towards situations that contribute to environmental damage; the reinforcement of values was the central point during all the activities. The knowledge gained by the pupils and the observed changes on their attitudes and participation show the positive results that arise when the action of environmental education focuses on the people and not the resources that are to be preserved

2006-01-01

91

The Amphibians and Reptiles of the Colombian Caribbean Islands San Andrés and Providencia The Amphibians and Reptiles of the Colombian Caribbean Islands San Andrés and Providencia  

Directory of Open Access Journals (Sweden)

Full Text Available In connection with a study of Central America I have examined specimens from many of the islands off the coast, and I here set down a list of those I have seen from two Colombian islands which rise from deep water about 200 km. east of Nicaragua. They are about 100 km. apart. Both represent old volcanic peaks, and it is unlikely that they were ever connected to each other or to the mainland, although they may have been much larger during a lower glacial sealevel. The herpetological fauna of San Andres and Providencia consists Of: a frog, known from both islands; six lizards, three from both islands and three from Providencia; four snakes, one from San Andrés and three from Providencia. In connection with a study of Central America I have examined specimens from many of the islands off the coast, and I here set down a list of those I have seen from two Colombian islands which rise from deep water about 200 km. east of Nicaragua. They are about 100 km. apart. Both represent old volcanic peaks, and it is unlikely that they were ever connected to each other or to the mainland, although they may have been much larger during a lower glacial sealevel. The herpetological fauna of San Andres and Providencia consists Of: a frog, known from both islands; six lizards, three from both islands and three from Providencia; four snakes, one from San Andrés and three from Providencia.

Dunn Emmett Reid

1945-08-01

92

Leisure boating noise as a trigger for the displacement of the bottlenose dolphins of the Cres-Lošinj archipelago (northern Adriatic Sea, Croatia).  

Science.gov (United States)

The waters of the Cres-Lošinj archipelago are subject to intense boat traffic related to the high number of leisure boats frequenting this area during the summer tourist season. Boat noise dominates the acoustic environment of the local bottlenose dolphin (Tursiops truncatus) population. This study investigates the spatial and temporal change in the underwater noise levels due to intense boating, and its effect on the distribution of the bottlenose dolphins. In the period 2007-2009 sea ambient noise (SAN) was sampled across ten acoustic stations. During data collection the presence of leisure boats was recorded if they were within 2 km of the sampling station. Bottlenose dolphin spatial distribution was monitored in the same period. Results showed a strong positive correlation between high SAN levels and boat presence, particularly in the tourist season. Dolphin distribution indicated significant seasonal displacements from noisy areas characterized by the intense leisure boating. PMID:23324542

Rako, Nikolina; Fortuna, Caterina Maria; Holcer, Draško; Mackelworth, Peter; Nimak-Wood, Maja; Plesli?, Grgur; Sebastianutto, Linda; Vilibi?, Ivica; Wiemann, Annika; Picciulin, Marta

2013-03-15

93

Pelagic microplastics around an archipelago of the Equatorial Atlantic.  

Science.gov (United States)

Plastic marine debris is presently widely recognised as an important environmental pollutant. Such debris is reported in every habitat of the oceans, from urban tourist beaches to remote islands and from the ocean surface to submarine canyons, and is found buried and deposited on sandy and cobble beaches. Plastic marine debris varies from micrometres to several metres in length and is potentially ingested by animals of every level of the marine food web. Here, we show that synthetic polymers are present in subsurface plankton samples around Saint Peter and Saint Paul Archipelago in the Equatorial Atlantic Ocean. To explain the distribution of microplastics around the Archipelago, we proposed a generalised linear model (GLM) that suggests the existence of an outward gradient of mean plastic-particle densities. Plastic items can be autochthonous or transported over large oceanic distances. One probable source is the small but persistent fishing fleet using the area. PMID:23953893

Ivar do Sul, Juliana A; Costa, Monica F; Barletta, Mário; Cysneiros, Francisco José A

2013-10-15

94

[Scorpions(Arachnida) from Bocas del Toro archipelago, Panamá].  

Science.gov (United States)

Four species of buthid scorpions (Ananteris platnicki Lourenço, 1993; Centruroides limbatus [Pocock, 1898]; Tityus pachyurus [Pocock, 1897]; and T. ocelote Francke and Stockwell, 1987) are recorded for the first time from some islands and cays of the Bocas del Toro Archipelago, Panama. Morphological variation and ecological data are given for all the species. This is the first Panamanian record for both C. limbatus and T. ocelote. The scorpion fauna of the Bocas de Toro Archipelago is related with the recent fauna of the Atlantic continental lowland region of Costa Rica and Panama and includes Amazonian-Guyanese (genera Ananteris and Tityus) as well as Mexican-North Central American (genus Centruroides) elements. PMID:12298241

Montoya, Michel; de Armas, Luis F

2002-03-01

95

Yeast biodiversity in the vineyards of the Azores Archipelago (Portugal)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This study aims to identify the fermentative yeasts communities of the vineyards from the mid-Atlantic islands ecosystems of the Azores Archipelago and to evaluate whether the populations vary according to the islands geography, grape variety and type of vineyard. From an ecological point of view, vineyards of these isolated volcanic islands terroirs correspond to very particular ecosystems, whose yeast flora is completely unknown. During the harvests of 2009 and 2010, 88 and 75 grape sam...

Neves, J. Drumonde; Lima, Teresa; Schuller, Dorit

2012-01-01

96

Indications of Recovery from Hypoxia in the Inner Stockholm Archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Improved benthic conditions compared to the 1990s were found during benthic investigations, including sediment and benthic macrofauna in the inner Stockholm archipelago during 2008. In the 1990s, these areas were dominated by black and laminated surface sediments and very sparse fauna. A clear relationship was found when comparing sediment status with the benthic macrofauna. Reduced surface sediment and impoverished macroinvertebrate community was only found at one sampling station representi...

Karlsson, O. Magnus; Jonsson, Per O.; Lindgren, Dan; Malmaeus, J. Mikael; Stehn, Anders

2010-01-01

97

OrkneyLab: an archipelago experiment in futures.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

‘The Orkney imagination is haunted by time’ wrote the Orcadian poet, George Mackay Brown. Here, on this archipelago beyond the northern coast of Scotland, brackish lochs and moist green ?elds weave around Neolithic stone circles, chambered tombs, standing stones. Lighthouses glance out at concrete barriers, gun emplacements, a ?eet of scuttled ships, reminders of world wars. Cloud-grey wind turbines on the horizon turn, their own archaeology marked by empty hexagonal platforms and a d...

2009-01-01

98

Complex geophysical wake flows. Madeira Archipelago case study  

Science.gov (United States)

Idealized studies of island wakes often use a cylinder-like island to generate the wake, whereas most realistic studies use a close representation of the oceanic bathymetry immersed in a complex representation of the "ambient" geophysical flows. Here, a system of multiple islands was placed into numerical and experimental channels, in order to focus on the complexity of the archipelago wake, including (a) the influence of small neighboring islands and (b) the role of the island-shelf. The numerical geostrophic and stratified channel was built using a three-dimensional primitive equation model, considering a realistic representation of the Madeira archipelago bathymetry, with prescribed initial and boundary conditions. Results from the simulations show that the neighboring islands alter the near-field wake. Small eddies generated by the neighboring islands lead to destabilization of the shear layers of the larger island. Laboratory experiments carried out in the Coriolis rotating tank corroborated this near-field disruptive mechanism. The neighboring island perturbation effect was present whatever the direction of the incoming flow, but under different regimes. North-south wakes produced geostrophic eddies (? R d), whereas west-east wakes produced (exclusively) ageostrophic submesoscale eddies (Madeira archipelago, and may serve as guide for future multiscale numerical studies and in situ campaigns.

Caldeira, Rui Miguel A.; Sangrà, Pablo

2012-05-01

99

The island as container: islands, archipelagos and player movement in video games  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The use of islands and archipelagos as settings in video games has proven enduring and popular: these locations are usually shown to be dangerous places where travel can be difficult. The use of island and archipelago settings in this medium developed along with conventions about water in general being an obstacle to traverse, meaning that player characters that experience islands and archipelagoes are forced to discover ways to travel around, over, and away from them. Islands remain popular ...

2013-01-01

100

On the Andre-Oort conjecture for Hilbert modular surfaces  

CERN Multimedia

We prove, assuming the generalized Riemann hypothesis, the Andre-Oort conjecture for Hilbert modular surfaces. More precisely, let K be a real quadratic field and let S be the coarse moduli space of complex abelian surfaces with multiplications by the ring of integers of K. Let C be an irreducible closed curve in S, and suppose that C contains infinitely many complex multiplication points. Then we prove, assuming GRH, that C is of Hodge type, meaning, in this case, that it parametrizes abelian varieties with more endomorphisms. Also, if we assume that C has infinitely many CM points that correspond to abelian surfaces that lie in one isogeny class, we prove that C is of Hodge type without assuming GRH. This last result is motivated by applications by Wolfart, Cohen and Wustholz.

Edixhoven, B

1999-01-01

 
 
 
 
101

Tõnu Anton kahtlustab linnaisasid omakasu jahtimises / Tõnu Anton, Andres Kõiv, Ando Hagel ; interv. Ulis Guth  

Index Scriptorium Estoniae

Võru linnavolikogu opositsiooni kuuluv keskerakondlane Tõnu Anton kritiseerib sotsiaalabitalituse ruumide remondirahade kasutamist ja kahtlustab linnavalitsust riigihangete käigus raha kõrvaldamises. Linnapea Ando Hagel ja abilinnapea Andres Kõiv lükkavad süüdistused tagasi

Anton, Tõnu, 1942-

2004-01-01

102

Korterelamu Tallinnas Weizenbergi 29 = Apartment Building in Tallinn, at 29 Weizenbergi Street / Andres Alver  

Index Scriptorium Estoniae

Puitvoodriga betoonist kastjas hoone. Projekteerija Alver Trummal Arhitektid. Arhitektid Andres Alver ja Tarmo Laht. Eriosad: Eesti Projekt. Projekt 1998, valmis 2000. 3 ill.: põhiplaan, välisvaade, Pille Lausmäe kujundatud korteri vaade

Alver, Andres, 1953-

2001-01-01

103

Ületades piire = Crossing the Bordes / Anders Härm, Tarmo Maiste ; interv. Andres Kurg, Triin Ojari  

Index Scriptorium Estoniae

Intervjuu Veneetsia 7. arhitektuuribiennaali Eesti ekspositsiooni "Simulacrum City" autorite Anders Härmi ja Tarmo Maistega. Eesti väljapanekust (arhitektuurifotod - Arne Maasik; filmi, stsenaarium ja kontseptsioon - Andres Maimik, Jaak Kilmi, muusika - Taavi Laatsit), biennaalist. 13 ill

Härm, Anders, 1977-

2000-01-01

104

Vallavanemate hinnang aastatele 2008 ja 2009 / Jüri Lillsoo, Kalmer Märtson, Andre Sepp  

Index Scriptorium Estoniae

Milline oli aasta 2008 Teie valla jaoks, kui silmas pidada kiiret süvenevat majanduslangust? Mida oodata aastast 2009?Küsimustele vastavad Anija vallavanem Jüri Lillsoo, Kuusalu vallavanem Kalmer Märtson ja Raasiku vallavanem Andre Sepp

Lillsoo, Jüri, 1943-

2009-01-01

105

SUTD-i koorik = SUTD Gridshell / Andres Sevtšuk, Raul Kalvo  

Index Scriptorium Estoniae

Singapuri Tehnoloogia ja Disaini Ülikooli (SUTD) raamatukogu paviljon. Eskiis valmis esimese aasta üliõpilastele korraldatud töötoas. Algse ideega töötas edasi City Form Lab (arhitektid Andres Sevtšuk, Raul Kalvo). Paviljon pandi kokku ligi saja üliõpilase osalusel. Valmis: mai 2013

Sevtšuk, Andres, 1981-

2013-01-01

106

The Andre-Oort conjecture for the moduli space of Abelian Surfaces  

CERN Multimedia

We provide an unconditional proof of the Andr\\'e-Oort conjecture for the coarse moduli space $\\mathcal{A}_{2,1}$ of principally polarized Abelian surfaces, following the strategy outlined by Pila-Zannier.

Pila, Jonathan

2011-01-01

107

Andres Herkel : Venemaa esindaja ENPA presidendiks ei sobi / Haldi Ellam, Ravil Khair Al-Din  

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Vene ajalehe Kommersant väitel on Eesti parlamendi süüdistused ENPA presidendi Rene van der Lindeni vastu seotud Mihhail Margelovi võimaliku valimisega uueks presidendiks. Kristiina Ojuland ja Andres Herkel lükkavad väite tagasi

Ellam, Haldi

2007-01-01

108

Kaitseväe korralduse seadus muudab asjaajamise lihtsamaks ja selgemaks / Andres Anvelt ; interv. Liivi Parrest  

Index Scriptorium Estoniae

Kaitseväe korralduse seaduse rakendamise projektirühma juht Andres Anvelt selgitab muudatusi 1. jaan 2009 kehtima hakkavas seaduses. Lisatud: § 57. Seaduse rakendamine ; § 37. Kaitseväe volitused kaitseväeluure teostamisel ; § 41. Osalemine julgeolekuasutuste tegevuses ; § 23. Kaitseväe juhtimise alused

Anvelt, Andres, 1969-

2008-01-01

109

Proceedings of the 3. Summer School Jorge Andre Swieca in Nuclear Physics  

International Nuclear Information System (INIS)

This book contents the lectures and seminars presented during the Jorge Andre Swieca III Summer School-Nuclear Physics 1987 which happened in February 1987 in Itaipava - Rio de Janeiro - Brazil. (A.C.A.S.)

1987-02-16

110

"Riigikogu hoone 90" = "Estonian parliament building 90" / Janno Roos, Andres Labi  

Index Scriptorium Estoniae

Eesti Sisearhitektide Liidu 2012. aasta näituse kujunduse preemia pälvinud näitusest (Lossiplats 1A). Kujunduse autorid Janno Roos ja Andres Labi (Ruumilabor). Kuraator Mait Väljas. Graafiline disain: Identity. Sisearhitekti ja ESLi aastapreemiate žürii liikme Mari Kurismaa ning arhitektuuriajaloolase Leele Välja arvamused

Roos, Janno, 1976-

2013-01-01

111

Optimaalse haridusmudeli poole / Tõnis Lukas, Andres Jõgar, Jüri Ojamaa...[jt.] ; üles kirjutanud Karl Kello  

Index Scriptorium Estoniae

Tartus 3. aprillil toimunud ümarlaua vestlusest, millest võttis osa haridus- ja teadusminister Tõnis Lukas, Kõrvküla Põhikooli direktor Andres Jõgar, Abja Gümnaasiumi direktor Jüri Ojamaa, Nõo vallavanem Rain Sangernebo ja Tartu haridusosakonna juhataja Boris Goldman

2009-01-01

112

Tallinna idee / Andres Alver, Ott Alver, Marten Kaevats ; intervjueerinud Margit Mutso ; kommenteerinud Douglas Gordon  

Index Scriptorium Estoniae

17. veebruaril esitleti raamatut "Tallinna idee", mis on koostatud Eesti Kunstiakadeemia 4. kursuse arhitektuuritudengite kursuseprojektide põhjal. Tallinna teemal vestlevad tudengid Ott Alver ja Marten Kaevats ning nende juhendaja professor Andres Alver

Alver, Andres, 1953-

2011-01-01

113

Pahede koht on ajaloo prügikastis! Kas ikka on? / Andres Maimik, Maris Jesse ; intervjueerinud Sigrid Kõiv  

Index Scriptorium Estoniae

Proua Evelin Ilves tegi ettepaneku, et arstid võiksid inimesi innustada isikliku eeskujuga ja viia ennast tervislikku vormi. Filmimees Andres Maimik ja terviseedendaja Maris Jesse arutavad, kas on võimalik pahelisi eluviise välja juurida

Maimik, Andres, 1970-

2009-01-01

114

"Vali kord" sündis raevust ja irvest / Andres Maimik ; interv. Tiit Tuumalu  

Index Scriptorium Estoniae

Eesti Filmiajakirjanike Ühing valis "Aasta Filmiks 2004" Enn Säde dokfilmi "Jüri - see mulk ehk Mis tuul Müürile teeb" ja Andres Maimiku provokatiivse "Vali kord!" Viimase autor enda ja E. Säde filmi kohta

Maimik, Andres, 1970-

2005-01-01

115

Postsotsialismist vaatemängulinna = From Post-Socialism to the City of the Spectacle / Andres Kurg  

Index Scriptorium Estoniae

Büroo Alver Trummal Arhitektid töödest, Andres Alverist ja Tiit Trummalist. Ärihoonest Tallinnas Rävala pst. 4. Autorid: Andres Alver, Tiit Trummal, Tarmo Laht, Indrek Rünkla, Ulla Mets, Sven Koppel. Konstruktor Eido Uustalu (Eesti Projekt). Projekt 2001, valmis 2006. City Plazast Tallinnas Tartu mnt. 2. Autorid: A. Alver, T. Trummal, T. Laht, I. Rünkla, Martin Melioranski, U. Mets. Konstruktor: Tiit Masso, Pike Projekt. Sisekujundus (fuajeed, restoran): Pille Lausmäe. Projekt 2001, valmis 2004. Lõige, põhiplaan, 3 värv. välis- ja 5 sisevaadet

Kurg, Andres, 1975-

2007-01-01

116

Prehistory of the Indo-Malaysian Archipelago : Revised Edition  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Since its publication in 1985, Peter Bellwood’s Prehistory of the Indo-Malaysian Archipelago has been hailed as the sole authoritative work on the subject by the leading expert in the field. Now that work has been fully revised and includes a complete up-to-date summary of the archaeology of the region (and relevant neighboring areas of China and Oceania), as well as a comprehensive discussion of new and important issues (such as the “Eve-Garden of Eden” hypothesis and its relevance to ...

2007-01-01

117

Commensal Leucothoidae (Crustacea, Amphipoda of the Ryukyu Archipelago, Japan. Part II: sponge-dwellers  

Directory of Open Access Journals (Sweden)

Full Text Available Commensal leucothoid amphipods have been collected from the canals of their sponge hosts throughout the Ryukyu Archipelago, Japan. Eleven new species are described in the genus Leucothoe with valuable location data and host records. An identification key to sponge-dwelling Leucothoidae of the Ryukyu Archipelago is provided.

Kristine White

2012-01-01

118

Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part II: sponge-dwellers  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Commensal leucothoid amphipods have been collected from the canals of their sponge hosts throughout the Ryukyu Archipelago, Japan. Eleven new species are described in the genus Leucothoe with valuable location data and host records. An identification key to sponge-dwelling Leucothoidae of the Ryukyu Archipelago is provided.

2012-01-01

119

Commensal Leucothoidae (Crustacea, Amphipoda of the Ryukyu Archipelago, Japan. Part I: ascidian-dwellers  

Directory of Open Access Journals (Sweden)

Full Text Available Commensal leucothoid amphipods have been collected from the branchial chambers of their ascidian hosts throughout the Ryukyu Archipelago, Japan. Seven new species are described in two genera with valuable location data and host records. An identification key to ascidian-dwelling Leucothoidae of the Ryukyu Archipelago is provided.

James Reimer

2012-01-01

120

Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part III: coral rubble-dwellers  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Commensal leucothoid amphipods have been collected from coral rubble samples throughout the Ryukyu Archipelago, Japan. Seven new species are described in two genera with valuable location data. A new locality is presented for Paranamixis misakiensis Thomas, 1997. An identification key to all described Leucothoidae of the Ryukyu Archipelago is provided.

2012-01-01

 
 
 
 
121

Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part I: ascidian-dwellers  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Commensal leucothoid amphipods have been collected from the branchial chambers of their ascidian hosts throughout the Ryukyu Archipelago, Japan. Seven new species are described in two genera with valuable location data and host records. An identification key to ascidian-dwelling Leucothoidae of the Ryukyu Archipelago is provided.

2012-01-01

122

Commensal Leucothoidae (Crustacea, Amphipoda of the Ryukyu Archipelago, Japan. Part III: coral rubble-dwellers  

Directory of Open Access Journals (Sweden)

Full Text Available Commensal leucothoid amphipods have been collected from coral rubble samples throughout the Ryukyu Archipelago, Japan. Seven new species are described in two genera with valuable location data. A new locality is presented for Paranamixis misakiensis Thomas, 1997. An identification key to all described Leucothoidae of the Ryukyu Archipelago is provided.

Kristine White

2012-03-01

123

Mapping Human Genetic Diversity on the Japanese Archipelago  

Directory of Open Access Journals (Sweden)

Full Text Available The Japanese people are one of the most important populations for studying the origin and diversification of East Asian populations. As an island population, the Japanese's path of migration is a long-standing controversy. Archeological evidence suggests that there were at least two waves of migration to the Japanese archipelago in prehistory: the Paleolithic and Neolithic Jomonese as well as the Aeneolithic Yayoiese. However, the contributions of these Jomonese and Yayoiese to the contemporary Japanese population remain unclear. In this article, we provide evidence from human genetics as a new approach to addressing this topic. At the beginning, we introduce the history of human migration to the Japanese archipelago, as well as materials and methods human geneticists use. Subsequently, we tested three distinct population expansion models using evidences from recent human genetic studies on the Japanese, East Asian, and Serbian populations. Finally, we conclude that the contemporary main island Japanese are the result of population admixture of Jomonese, Yayoiese, and Han Chinese, which consists with the Admixture model.

Qi-Liang Ding

2011-11-01

124

The Idea of the Archipelago: Contemplating Island Relations  

Directory of Open Access Journals (Sweden)

Full Text Available Creative, innovative, and timely research on islands and island futures is warranted and pressing, not least because island(ers are poorly served by established tropes of them as subordinate to continents or mainlands. Opportunities exist to provide a more thoroughgoing account of island life and island relations, and the seven papers in this special issue address that task. In works that consider islands in the Timor Sea, the Caribbean, the Pacific, Atlantic and Southern Oceans, and that span several different disciplinary frames—archival-historical, critical theoretical, literary, cultural, geopolitical, sociological and artistic—these papers evidence both the diversity of approach to thinking with the archipelago, and numerous points in common. Among the latter is an understanding that island relations are built on connection, assemblage, mobility, and multiplicity, and a commitment to critically examine the ways in which these entanglements affect and give effect to island life. The models of island relationality brought to light by this collective focus on the archipelago reveal new and diverse connections of island peoples with their physical and cultural environments, and with the world beyond; create spaces for growing resilience, association and engagement; and invite further study.

Elaine Stratford

2013-05-01

125

Alkohol, andre rusmidler og vold i epidemiologisk perspektiv  

Directory of Open Access Journals (Sweden)

Full Text Available  SAMMENDRAGDen medisinske interessen for vold og voldsskader har økt kraftig i løpet av de siste to tiårene. Det epidemiologiskeperspektivet på vold har blitt forsterket og et mer etiologisk og preventivt syn på volden er mere merkbarinnenfor sosialmedisinsk forskning. Alkoholen er en etiologisk faktor som har vist seg å være forbundet med voldi de aller fleste samfunn. I denne artikkelen beskrives de viktigste epidemiologiske metodene og funnene i studietav alkoholens sammenheng med vold. Denne sammenhengen har vist seg ikke å være direkte, men er avhengig aven rekke andre faktorer, og noen forskjellige typer av kausal avhengighet beskrives i artikkelen. Den epidemiologiskeforskningen om andre rusmidlers sammenheng med vold er betydelig mindre omfattende enn den er foralkohol. Det er også åpenbart at andre rusmidler ikke er like sterkt sammenknyttet med vold som alkoholen.Pernanen K. Alcohol, other drugs, and violence in an epidemiological perspective.Nor J Epidemiol ENGLISH SUMMARYThe public health approach to violence has become increasingly accepted during the last couple of decades. Thishas led to more epidemiological research into violence, and a stronger medical interest in the etiology and preventionof violence. However, epidemiological research on the prevalence of violence in different societies is stillmainly criminological in nature, being based on information about violence that has come to the attention of thepolice or processed in the courts. The study of the relationship between alcohol use and violent behaviour is alsopredominantly based on police and court materials, although an increasing number of emergency room andhospitalization studies have examined the role of alcohol in injuries caused by violence.There are two basic methodological approaches in the study of the relationship between alcohol use andviolence. The alcohol-involvement studies estimate the extent to which drinking by the offender or the victim waspresent in episodes of violence. Time trend studies and so-called natural experiments measure how rates of violentcrime covary with levels of alcohol consumption in a population. Generally, these studies indicate that alcohol useis a potent factor in determining the prevalence of violent behaviour in a society. However, there is no evidenceshowing that a significant part of alcohol-related violence is directly caused by the presence of alcohol in theorganism. Four types of conditional factors affecting the risk of violent behaviour after drinking are discussed: (1the nature of the alcohol factor, (2 characteristics of the individual drinker, (3 the socio-cultural context in whichdrinking occurs, and (4 situational factors.The epidemiological evidence for a relationship between violence and the use of other drugs is much morescattered. It is complicated by the fact that most drug users use more than one type of drug. When an illegalpsychoactive drug is implicated in violent behaviour, it is often also accompanied by alcohol use. Clinical andexperimental evidence shows that the risk of aggression and physical violence depends, in addition to the type ofdrug, on the amounts used, the method of application, the phase of acute intoxication, and the long-term pattern ofuse. However, the violence associated with the use of illegal drugs is perhaps most closely determined by thecharacteristics of an illegal economy. Rival criminal organizations manufacture, distribute and sell these drugs,and they use violence and threats as a means of regulating this economy. In addition, many drug users resort toviolent crime in an effort to secure the funds needed for their addiction.1996; 6 (1: 29-36.

Kai Pernanen

2009-10-01

126

Seismic Hazard Maps for the Maltese Archipelago: Preliminary Results  

Science.gov (United States)

The Maltese islands form an archipelago of three major islands lying in the Sicily channel at about 140 km south of Sicily and 300 km north of Libya. So far very few investigations have been carried out on seismicity around the Maltese islands and no maps of seismic hazard for the archipelago are available. Assessing the seismic hazard for the region is currently of prime interest for the near-future development of industrial and touristic facilities as well as for urban expansion. A culture of seismic risk awareness has never really been developed in the country, and the public perception is that the islands are relatively safe, and that any earthquake phenomena are mild and infrequent. However, the Archipelago has been struck by several moderate/large events. Although recent constructions of a certain structural and strategic importance have been built according to high engineering standards, the same probably cannot be said for all residential buildings, many higher than 3 storeys, which have mushroomed rapidly in recent years. Such buildings are mostly of unreinforced masonry, with heavy concrete floor slabs, which are known to be highly vulnerable to even moderate ground shaking. We can surely state that in this context planning and design should be based on available national hazard maps. Unfortunately, these kinds of maps are not available for the Maltese islands. In this paper we attempt to compute a first and preliminary probabilistic seismic hazard assessment of the Maltese islands in terms of Peak Ground Acceleration (PGA) and Spectral Acceleration (SA) at different periods. Seismic hazard has been computed using the Esteva-Cornell (1968) approach which is the most widely utilized probabilistic method. It is a zone-dependent approach: seismotectonic and geological data are used coupled with earthquake catalogues to identify seismogenic zones within which earthquakes occur at certain rates. Therefore the earthquake catalogues can be reduced to the activity rate, the b-value of the Gutenberg-Richter relationship and an estimate of the maximum magnitude. In this article we also defined a new seismogenic zones in the central Mediterranean never considered before. In order to determine the ground motion parameters related to a specified probability of exceedance, the above statistical parameters are combined with ground motion prediction equations. Seismic hazard computations have been performed within the island boundaries. The preliminary maps for PGA distribution on rock site obtained for a 10% probability of exceedance shows values ranging between 0.09-0.18 g whereas, SA for 0.2, 04, 1.0 s show values of about 0.21-0.40 g, 0.14-0.24 g and 0.05-0.08 g respectively.

D'Amico, S.; Panzera, F.; Galea, P. M.

2013-12-01

127

Earthquakes: San Francisco  

Science.gov (United States)

The prediction of earthquakes may be inexact, but it is vital, especially when large cities such as San Francisco or Los Angeles are threatened. The San Andreas Fault and two other faults, the Heyward and Calaveras faults, all have the potential to deliver a massive earthquake to the San Francisco Bay area. In this video segment, a seismologist explains the historical pattern of seismic activity in the Bay area, and how this information may be used to predict the location and timing of San Francisco's next big earthquake. The segment is three minutes twenty-eight seconds in length. A background essay and discussion questions are included.

128

Higher homotopy operations and Andr\\'{e}-Quillen cohomology  

CERN Document Server

There are two main approaches to the problem of realizing a $\\Pi$-algebra (a graded group $\\Lambda$ equipped with an action of the primary homotopy operations) as the homotopy groups of a space $X$. Both involve trying to realize an algebraic free simplicial resolution $G_\\bullet$ of $\\Lambda$ by a simplicial space $W_\\bullet$ and proceed by induction on the simplicial dimension. The first provides a sequence of Andr\\'{e}-Quillen cohomology classes in $H_{AQ}^{n+2}(\\Lambda;\\Omega^{n}\\Lambda)$ for $n \\geq 1$ as obstructions to the existence of successive Postnikov sections for $W_\\bullet$ by work of Dwyer, Kan and Stover. The second gives a sequence of geometrically defined higher homotopy operations as the obstructions by earlier work of Blanc; these were identified with the obstruction theory of Dwyer, Kan and Smith in earlier work of the current authors. There are also (algebraic and geometric) obstructions for distinguishing between different realizations of $\\Lambda$. In this paper we 1) provide an explic...

Blanc, David; Turner, James M

2011-01-01

129

Historic and recent occurrences of pinnipeds in the Archipelago of the Azores  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Archipelago of the Azores (Portugal) is located between 37º and 41ºN and 25º and 31ºW and crosses the Mid-Atlantic Ridge. It is the most isolated archipelago in the Atlantic, situated 1600 km west of mainland Portugal and 3500 km from the eastern coast of the United States of America. At present, the only population of seals occurring in the Portuguese territory is found on Desertas Islands, Archipelago of Madeira, where a colony of 24 Mediterranean monk seals, Monachus monachus (Herm...

Silva, Mo?nica A.; Brito, Cristina; Santos, Sara V.; Barreiros, Joa?o P.

2009-01-01

130

The Potential of Small-Scale Agro-Industry as a Sustainable Livelihood Strategy in a Caribbean Archipelago Province of Colombia  

Directory of Open Access Journals (Sweden)

Full Text Available San Andrés, Providence, and Santa Catalina were declared a biosphere reserve in the year 2000; as an effort to protect biodiversity and to promote sustainable development. This declaration entails the development of sustainable economic activities that ensure environmental conservation and the community’s wellbeing. Surveys and interviews were used to determine the characteristics of small-scale agro-industry and the perceptions about its sustainability as a livelihood strategy for the Archipelago. The study concludes that agro-industry, as it is currently practiced in the Archipelago, is not sustainable in the long-term. However, it has potential to become a sustainable livelihood strategy. This study calls for efforts to strengthen agriculture and protect local agro-industry production, aiming for a steady supply of raw materials for agro-industry and an assurance of local markets for the products. Further studies on adapting and coping strategies and the contributions that modern technology might offer to artisanal agro-industry are suggested.

Magda M. Masquita Mckeller

2012-02-01

131

Reading the Planetary Archipelago of the Torres Strait  

Directory of Open Access Journals (Sweden)

Full Text Available This essay makes use of the Western concept of the archipelago as a starting point for an examination of island to island relations in the Torres Strait, Australia, as they are rehearsed in the imaginary domain of story, in both its written and oral modes. The essay deploys Spivak’s notions of planetarity and Bloch’s concept of utopianism as ways of charting the relationship between two Torres Strait stories, one old, one new. In so doing, the essay seeks to identify the capacity of Torres Strait literature and storytelling to re-conceive relations of space and time and to acknowledge a spatial and temporal mobility running parallel to the circumscribed trajectories of late modernity.

Elizabeth McMahon

2013-05-01

132

SAN CARLOS APACHE PAPERS.  

Science.gov (United States)

THE FIRST SECTION OF THIS BOOK COVERS THE HISTORICAL AND CULTURAL BACKGROUND OF THE SAN CARLOS APACHE INDIANS, AS WELL AS AN HISTORICAL SKETCH OF THE DEVELOPMENT OF THEIR FORMAL EDUCATIONAL SYSTEM. THE SECOND SECTION IS DEVOTED TO THE PROBLEMS OF TEACHERS OF THE INDIAN CHILDREN IN GLOBE AND SAN CARLOS, ARIZONA. IT IS DIVIDED INTO THREE PARTS--(1)…

ROESSEL, ROBERT A., JR.

133

Study on the accident oil spill pollution in Wanshan Archipelago sea area  

International Nuclear Information System (INIS)

This paper uses diffusion model and transfer model of instantaneous oil spilling with static point source for forecasting and studying the accident oil spilling pollution in Wanshan Archipelago sea area. The paper also presents prevention and cure measures

1996-03-01

134

The biogeography of fermentative yeast populations from the vineyards of the Azores archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This study aims at the characterization of the fermentative yeasts flora of the vineyards from the Azores archipelago, for biodiversity preservation and the constitution of a Saccharomyces cerevisiae strain collection. During the harvests of 2009 and 2010, 163 (88 and 75) grape samples were collected from eight islands of the archipelago, that belonged to traditional (Arinto, Verdelho and Terrantez) and hybrid grape varieties. The sampling plan covered 36 locations, including vineyards in app...

Neves, J. Drumonde; Lima, Maria Teresa; Schuller, Dorit

2011-01-01

135

Introduced guppies being the first record of freshwater fish on the Cape Verdean archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Cape Verdean islands form a distinct aquatic freshwater ecoregion characterised by mainly temporal water bodies with an adapted invertebrate community. Freshwater fish were not yet recorded from the archipelago. During a non-exhaustive screen of freshwater bodies on five islands of the archipelago, the first presence of freshwater fish was recorded in an artificial reservoir. Using barcoding sequences, the species was identified to be introduced guppies (Poecilia reticulata), ...

Kay Lucek; Mélissa Lemoine

2013-01-01

136

Introduced guppies being the first record of freshwater fish on the Cape Verdean archipelago  

Directory of Open Access Journals (Sweden)

Full Text Available The Cape Verdean islands form a distinct aquatic freshwater ecoregion characterised by mainly temporal water bodies with an adapted invertebrate community. Freshwater fish were not yet recorded from the archipelago. During a non-exhaustive screen of freshwater bodies on five islands of the archipelago, the first presence of freshwater fish was recorded in an artificial reservoir. Using barcoding sequences, the species was identified to be introduced guppies (Poecilia reticulata, a highly invasive species.

Kay Lucek

2013-03-01

137

Seed dispersal by common ravens Corvus corax among island habitats (Canarian Archipelago)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The role of the common raven (Corvus corax; Caovidae) as a seed dispersal agent for plants in the Canary Islands was studied by analysing 2672 pellets collected from all islands of the archipelago. Seeds of 16 species of phanerpgams were found (foue endemic to the Canaries, three endemic to the Macaronesian islands, six not endemic, and three introduced by man). Vegetation in this archipelago is highly structured according to altitude creating different types of macrohabitats. The quality of...

Nogales, Manuel; Herna?ndez, Elizabeth C.; Valde?s, Francisco

1999-01-01

138

Toward a Global Tuamotu Archipelago Coconut Trees Sensing Using High Resolution Optical Data  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This study is part of a regeneration program of the coconut grove of French Polynesia where most coconut palm trees of the Tuamotu archipelago were planted in the 1980's following the various hurricanes that had struck islands. The French Polynesia government acquired one-meter pansharpened RGB Ikonos images over the Tuamotu archipelago. To exploit these data, a pilot study is conducted on the island of Tikehau, well-known from the specialists and easily accessible from Tahiti. A Maximum Like...

Teina, Raimana; Be?re?ziat, Dominique; Stoll, Benoi?t; Chabrier, Se?bastien

2008-01-01

139

Export of Pacific carbon through the Arctic Archipelago to the North Atlantic  

Science.gov (United States)

During an east-to-west transect through the Canadian Arctic Archipelago, dissolved inorganic carbon (DIC) and total alkalinity (TA) were measured. The watermass composition throughout the Archipelago is determined using TA and the seawater oxygen isotope fractionation ( ?18O) data, and the carbon characteristics of these waters are examined. The influence of the Mackenzie River is primarily limited to the upper water column in the western Archipelago while the fraction of sea-ice melt water in the surface waters increases eastward with maximum values at the outflows of Jones and Lancaster Sounds. The depth of Pacific-origin upper halocline waters increases eastward through the Archipelago. In the western Archipelago, non-conservative variations in deep water DIC are used to compute a subsurface carbon surplus, which appears to be fueled by organic matter produced in the surface layer and by benthic respiration. The eastward transport of carbon from the Pacific, via the Arctic Archipelago, to the North Atlantic is estimated, and the impact of increased export of sea-ice melt water to the North Atlantic is discussed.

Shadwick, E. H.; Thomas, H.; Gratton, Y.; Leong, D.; Moore, S. A.; Papakyriakou, T.; Prowe, A. E. F.

2011-05-01

140

Export of Pacific carbon through the Arctic Archipelago to the North Atlantic  

DEFF Research Database (Denmark)

During an east-to-west transect through the Canadian Arctic Archipelago, dissolved inorganic carbon (DIC) and total alkalinity (TA) were measured. The watermass composition throughout the Archipelago is determined using TA and the seawater oxygen isotope fractionation (δ18O) data, and the carbon characteristics of these waters are examined. The influence of the Mackenzie River is primarily limited to the upper water column in the western Archipelago while the fraction of sea-ice melt water in the surface waters increases eastward with maximum values at the outflows of Jones and Lancaster Sounds. The depth of Pacific-origin upper halocline waters increases eastward through the Archipelago. In the western Archipelago, non-conservative variations in deep water DIC are used to compute a subsurface carbon surplus, which appears to be fueled by organic matter produced in the surface layer and by benthic respiration. The eastward transport of carbon from the Pacific, via the Arctic Archipelago, to the North Atlanticis estimated, and the impact of increased export of sea-ice melt water to the North Atlantic is discussed.

Shadwick, E.H.E.H.; Thomas, H.

2011-01-01

 
 
 
 
141

Mineral waters characterization in the Azores archipelago (Portugal)  

Science.gov (United States)

A study of the hydrogeochemistry of more than 100 mineral waters in the Azores archipelago (Portugal) was conducted on São Miguel, Terceira, São Jorge, Faial, Pico Graciosa and Flores islands. About 75% of the discharges are located at São Miguel, whereas the rest are more equally distributed over the other islands. Springs are dominant (74%), but drilled wells and boiling pools comprise about 10% of the studied discharges. Only 2% of discharges represent hand-dug wells. Results show a large range of chemical characteristics and diverse water types: discharge temperature range between 15 °C and 99.5 °C (median = 35 °C), conductivity between 139 and 43,100 ?S/cm (median = 906 ?S/cm), and pH between 2.2 and 7.82 (median = 5.78). The dominant water types are Na-HCO 3 and Na-Cl, representing two main trends ("hydrothermal" and "marine"), despite a few samples of the Na-SO 4 type. Relative minor and trace element contents reinforce conclusions drawn from major-ion compositions that major hydrogeochemical processes are: evolution of deep hydrothermal fluids, adsorption of magmatic volatiles, steam-heating of perched-aquifers, and mixing of deep fluids with marine or near-surface hydrothermal fluids.

Cruz, J. Virgílio; Freire, Pedro; Costa, Andrea

142

Landslides density map of S. Miguel Island, Azores archipelago  

Science.gov (United States)

The Azores archipelago is located in the Atlantic Ocean and is composed of nine volcanic islands. S. Miguel, the largest one, is formed by three active, E-W trending, trachytic central volcanoes with caldera (Sete Cidades, Fogo and Furnas). Chains of basaltic cinder cones link those major volcanic structures. An inactive trachytic central volcano (Povoação) and an old basaltic volcanic complex (Nordeste) comprise the easternmost part of the island. Since the settlement of the island early in the 15th century, several destructive landslides triggered by catastrophic rainfall episodes, earthquakes and volcanic eruptions occurred in different areas of S. Miguel. One unique event killed thousands of people in 1522. Houses and bridges were destroyed, roads were cut, communications, water and energy supply systems became frequently disrupted and areas of fertile land were often buried by mud. Based on (1) historical documents, (2) aerial photographs and (3) field observations, landslide sites were plotted on a topographic map, in order to establish a landslide density map for the island. Data obtained showed that landslide hazard is higher on (1) the main central volcanoes where the thickness of unconsolidated pyroclastic deposits is considerable high and (2) the old basaltic volcanic complex, marked by deep gullies developed on thick sequences of lava flows. In these areas, caldera walls, fault scarps, steep valley margins and sea cliffs are potentially hazardous.

Valadão, P.; Gaspar, J. L.; Queiroz, G.; Ferreira, T.

143

Early Carboniferous (Visean) lacustrine oil shale in Canadian Arctic archipelago  

Energy Technology Data Exchange (ETDEWEB)

The Lower Carboniferous (Visean) Emma Fiord Formation in the Canadian Arctic Archipelago is an oil shale of lacustrine origin composed of black carbonaceous shale, siltstone, and marlstone with interbedded sandstone, conglomerate, and oolitic and algal limestones. At Kleybolte Peninsula on Ellesmere Island, the Emma Fiord Formation was deposited on the tectonically active northwestern rim of the Sverdrup basin; it is now thermally overmature and well beyond the dry gas zone of organic maturation (vitrinite reflectance approx. = 5.0). In contrast, the Emma Fiord sequence on Grinnell Peninsula, Devon Island, near the southern edge of the Sverdrup basin, is immature to marginally mature (vitrinite reflectance = 0.26-0.44) and is composed predominantly of liptinite-rich oil shale. These kerogen-rich rocks contain a high volume of microcrystalline calcite and compositionally are marlstones. The Emma Fiord oil shales were deposited in lakes formed immediately prior to or possibly synchronous with the initiation of rifting in the Sverdrup basin. Syntectonic red-bed conglomerates derived from uplifted horst blocks directly overlie the Emma Fiord rocks. A few beds of conglomerate and sandstone in the upper part of the Emma Fiord Formation possibly record the onset of faulting. The formation closely resembles contemporaneous sequences in northern Alaska, Yukon Territory, Greenland, and Spitsbergen. Clearly, similar tectonic and paleoclimatic factors influenced sedimentation over this area in the Early Carboniferous, with the Sverdrup basin locations lying within 10/sup 0/-15/sup 0/ of the paleoequator. 11 figures, 2 tables.

Davies, G.R.; Nassichuk, W.W.

1988-01-01

144

Irreversible mass loss of Canadian Arctic Archipelago glaciers  

Science.gov (United States)

The Canadian Arctic Archipelago (CAA) contains the largest volume of glacier ice on Earth outside of Antarctica and Greenland. In the absence of significant calving, CAA glacier mass balance is governed by the difference between surface snow accumulation and meltwater runoff—surface mass balance. Here we use a coupled atmosphere/snow model to simulate present-day and 21st century CAA glacier surface mass balance. Through comparison with Gravity Recovery and Climate Experiment mass anomalies and in situ observations, we show that the model is capable of representing present-day CAA glacier mass loss, as well as the dynamics of the seasonal snow cover on the CAA tundra. Next, we force this model until 2100 with a moderate climate warming scenario (AR5 RCP4.5). We show that enhanced meltwater runoff from CAA glaciers is not sufficiently compensated by increased snowfall. Extrapolation of these results toward an AR5 multimodel ensemble results in sustained 21st century CAA glacier mass loss in the vast majority (>99%) of the ~7000 temperature realizations.

Lenaerts, Jan T. M.; Angelen, Jan H.; Broeke, Michiel R.; Gardner, Alex S.; Wouters, Bert; Meijgaard, Erik

2013-03-01

145

Promotional archipelagoes of change. Spatial analysis of Dinosauro  

International Nuclear Information System (INIS)

During the last decades, the post industrial Latin American cities have become important economic centers in the world. Their integration into the world economy helped those cities become in the favorite places for the linking functions and activities to the world nets of commerce, productions culture, etc. These urban centers which are expanding gradually into segmented developing areas have caused an apparent space duality between the private and public activities as it can be seen though the differential access to goods and services by the society. At present, there has been an increase in cultural activities which form change promoting archipelagoes subject to several dimensions of analysis. The inequity in the distribution of economic and educational resources causes unequal ways of access to consumption of these areas of cultural production, and of goods and services, what gives place to situations of social exclusion and inclusion. To understand this fact related to money behavior, we have selected an area situated in the northwest of Cordoba capital city, in Argentina, which is a shopping mall called Dinosaurio Group. In this essay we present an exploration into the conflicts caused to the cities through the expansion of the segmented urban centers, promoters of change, and its relationship with the public and private space.

2009-01-01

146

Keskpank tahtis praakraha kärata kokku korjata / Andres Lipstok ; interv. Andrus Karnau  

Index Scriptorium Estoniae

Ilmunud ka: Postimees : na russkom jazõke 1. veebr. lk. 8. Eesti Panga president Andres Lipstok vastab küsimustele, mis puudutavad panga poolt ringlusse lastud defektseid 100-krooniseid. Vt. samas: Andrus Karnau, Kaire Uusen. Sõrg peab 100-krooniste lugu tööõnnetuseks. Lisa: Vigased 100-kroonised pääsesid ringlusse mullu oktoobris, politseisse viidi selle pärast kümmekond inimest

Lipstok, Andres, 1957-

2006-01-01

147

Vabade kunstide lõputööd / Andres Tali ; intervjueerinud R[eet] V[arblane] ; kommenteerinud Andreas Trossek  

Index Scriptorium Estoniae

EKA vabade kunstide teaduskonna dekaan Andres Tali lõpetajate tasemest. 15 magistrikraadi kaitsnud üliõpilase tööd olid enamikus väljas festivali "Tase'11" raames magistritööde näitusel Rotermanni kvartalis 22.05.-5.06.2011. Bakalaureusetaseme lõpetamisest portfoolioga. Andreas Trossek Kristi Kongi, Eva Labotkini, Laura Tootsi, Reimo Võsa-Tangsoo ja Stella Salumaa magistritöödest

Tali, Andres, 1956-

2011-01-01

148

Ossinovski: Alexelast võib EOS-i ostuga saada Eesti suurim naftatransiidifirma / Oleg Ossinovski ; interv. Andres Reimer  

Index Scriptorium Estoniae

Kütusefirma Alexela kavatseb osta Severstaltransile kuuluva naftaterminali EOS. Alexela osanik vastab küsimustele, miks Severstaltrans tahab terminali müüa, miks tema arvates õnnestub Alexelal äri paremini kui Severstaltransil, mis kavatsused on raudteetranspordifirmaga Spacecom, kuidas elab kriisi üle Eesti Raudtee. Kommenteerivad Urmas Glase ja Andres Reimer

Ossinovski, Oleg, 1966-

2007-01-01

149

Hotell 'Bernhard' Otepääl. Otepää aedlinn, Kolga tee 22a / Andres Lunge  

Index Scriptorium Estoniae

Otepää aedlinnas asuva U. Tiirmaa poolt kuuekümnendatel projekteeritud Tartu Katseremonditehase puhkebaasi rekonstrueerimine. Kavandati uus peasissepääs, täiendav tubadekorrus, restoran, vastuvõtufuajee jm. ning juurdeehitusena osaliselt maaalune lisakorpus konverentsisaali jm. ruumidega. Tellija: AS Regel. Projekteerija: Tareke Projekt OÜ. Arhitekt Andres Lunge. Sisekujundaja Taisi Kadarik. Ehitus: AS Regel, 1996-1998. Projekt 1995, 1998, valmis 1998

Lunge, Andres

1998-01-01

150

A Model for the crust across the San Andres fault system in Mexico-USA border region; Un modelo de la estructura de la corteza para el sistema de fallas de San Andres en la zona fronteriza Mexico- EEUU  

Energy Technology Data Exchange (ETDEWEB)

We report the recording and interpretation of an unreversed seismic profile between Blythe, Arizona and Ensenada, Baja California, using an explosive source in a drilled hole near Blythe (from project Delta Force). The data consist of digital seismograms from 14 three-component stations in a line between Mexicali and Ensenada (every 10 km) and 15 stations from the Southern California Network. The profile goes through three distinct regions: a) the Chocolate Mountains in Southern California; b) the Salton Trough in both Californias, and c) the Peninsular Ranges in Baja California, and is almost perpendicular to the general trend of the Salton Trough central axis. Vertical component seismograms at distances of 40-260 km are interpreted. The record section shows several secondary phases which are correlated and interpreted in a forward modelling scheme for time arrivals and relative amplitudes. No significant S-wave arrivals are identified. A preliminary interpretation produces a crustal depth of 22 km beneath the Chocolate Mountains and a crustal structure of P-wave velocities comprised by layers of 5.3, 5.5 and 6.2. km/s, with thicknesses of 4, 8 and 10 km, respectively. Results for the crustal structure of the Mexicali-Imperial Valley are consistent with the extensive refraction measurements made in the past; in addition, the presence of an upper mantle intrusion beneath the Valley is well resolved. Data are insufficient for determining crustal thickness in the Peninsular Ranges region. [Espanol] Se presentan los datos y la interpretacion de un perfil sismico de refraccion entre Blythe, Arizona y Ensenada, Baja California. Se utilizo como fuente una explosion subterranea realizada en un pozo cerca de Blythe como parte del proyecto Delta Force. Para obtener los datos se instalaron entre Mexicali y Ensenada 14 estaciones digitales portatiles con sismometros de tres componentes, cada 10 km, esta informacion se complemento con datos de 15 estaciones de la Red del Sur de California. El perfil atraviesa tres distintas regiones: a) Las Montanas Chocolate en el Sur de California; b) La Cuenca Salton en ambas Californias, y c) Las Sierras en Baja California, y es casi perpendicular al eje central de la Cuenca Salton. Se interpretan los sismogramas de la componente vertical para un intervalo de distancias de 40 a 260 km. Los ensamblajes muestran varias fases secundarias que fueron correlacionadas e interpretadas, se modelaron sus tiempos de recorrido y amplitudes relativas por medio de trazado de rayos asintoticos. No se identificaron llegadas claras de ondas S. Nuestra interpretacion preliminar muestra una corteza de 22 km de profundidad bajo las Montanas Chocolate con una estructura de velocidades para onda P definida por tres capas de 5.3, 5.5 y 6.2. km/s, con grosores de 4, 8 y 10 km respectivamente. Los resultados para la estructura de la corteza en el Valle Mexicali-Imperial son consistentes con los amplios estudios previamente realizados en la zona; sin embargo, se detecto la presencia de una intrusion del manto superior bajo el Valle a una profundidad de 17 km y que el Valle Mexicali-Imperial actua como una zona de generacion de ondas multiples de gran amplitud. Los datos son insuficientes para determinar con precision la estructura cortical en la region de las Sierras Peninsulares.

Nunez-Cornu, F. [Centro Universitario de la Costa, Campus Puerto Vallarta y Departamento de Geografia de la Universidad de Guadalajara, Puerto Vallarta (Mexico); Montana, C. [DGS University of Texas at el Paso, El Paso TX (United States); Frez, J.; Munguia, L.; Nava, A.; Gonzalez, J.; Mendoza, L.; Aragon, M.; Sanchez-Mora, C.; Morandi, M.; Madrid, J. [Grupo de Perfiles Sismicos del CICESE, Ensenada (Mexico)

1996-01-01

151

Samspillet mellem matematik og de andre fag i gymnasieskolen : Matematikfaget og reformen af de ungdomsgymnasiale uddannelser  

DEFF Research Database (Denmark)

Som en konsekvens af 2005â??reformen af de ungdomsgymnasiale uddannelser skal eleverne vælge mellem de sÃ¥kaldte studieretningsforløb der giver mulighed for at arbejde i en sammenhængende periode pÃ¥ 2 1/2 Ã¥r med retningens fag. Reformens krav om øget samspil mellem fagene lægger op til omfattende ændringer af de gymnasiale uddannelsers matematikundervisning. Erfaringerne med en bevidst inddragelse af matematiske kompetencer i andre fag er begrænsede. Det skyldes bl.a. at der mangler sÃ¥vel en konceptuel ramme som en didaktisk model for samspillet mellem matematik og andre fag samt konkrete og veldokumenterede eksempler pÃ¥ undervisningsforløb med et for bÃ¥de lærere og elever udbytterigt samspil. I artiklen præsenteres en række positioner vedrørende matematikundervisningen som vi lader spille sammen med en analyse af relevant forskning inden for matematikkens didaktik der mere eller mindre eksplicit inddrager matematikfagets relationer til andre fag. PÃ¥ baggrund heraf udvikles et koncept for matematiks samspil med andre fag bestÃ¥ende af tværfaglige kompetencer som den konceptuelle ramme og en didaktisk model hvor samspillet opfattes som en iterativ bevægelse mellem (1) horisontal sammenkædning af fagene og (2) vertikal strukturering i fagene. Der gives to eksempler hvor fagoverskridende kompetencer og den didaktiske model er anvendt som et redskab til at udvikle undervisningsforløb hvor matematik indgÃ¥r i et tæt samspil med andre fag: (1) matematik og naturfagene og (2) matematik og filosofi.

Iversen, Steffen Møllegaard; Michelsen, Claus

2009-01-01

152

An Integrated Study of the Grayburg/San Andres Reservoir, Foster and South Cowden Fields, Ector County, Texas, Class II  

Energy Technology Data Exchange (ETDEWEB)

The objectives of the project were to: (1) Thoroughly understand the 60-year history of the field. (2) Develop a reservoir description using geology and 3D seismic. (3) Isolate the upper Grayburg in wells producing from multiple intervals to stop cross flow. (4) Re-align and optimize the upper Grayburg waterflood. (5) Determine well condition, identify re-frac candidates, evaluate the effectiveness of well work and obtain bottom hole pressure data for simulation utilizing pressure transient testing field wide. (6) Quantitatively integrate all the data to guide the field operations, including identification of new well locations utilizing reservoir simulation.

Trentham, Robert C.; Weinbrandt, Richard; Robinson, William C.; Widner, Kevin

2001-05-03

153

Barium and carbon fluxes in the Canadian Arctic Archipelago  

DEFF Research Database (Denmark)

[1] The seasonal and spatial variability of dissolved Barium (Ba) in the Amundsen Gulf, southeastern Beaufort Sea, was monitored over a full year from September 2007 to September 2008. Dissolved Ba displays a nutrient-type behavior: the maximum water column concentration is located below the surface layer. The highest Ba concentrations are typically observed at river mouths, the lowest concentrations are found in water masses of Atlantic origin. Barium concentrations decrease eastward through the Canadian Arctic Archipelago. Barite (BaSO4) saturation is reached at the maximum dissolved Ba concentrations in the subsurface layer, whereas the rest of the water column is undersaturated. A three end-member mixing model comprising freshwater from sea-ice melt and rivers, as well as upper halocline water, is used to establish their relative contributions to the Ba concentrations in the upper water column of the Amundsen Gulf. Based on water column and riverine Ba contributions, we assess the depletion of dissolved Ba by formation and sinking of biologically bound Ba (bio-Ba), from which we derive an estimate of the carbon export production. In the upper 50 m of the water column of the Amundsen Gulf, riverine Ba accounts for up to 15% of the available dissolved Ba inventory, of which up to 20% is depleted by bio-Ba formation and export. Since riverine inputs and Ba export occur concurrently, the seasonal variability of dissolved Ba in the upper water column is moderate. Assuming a fixed organic carbon to bio-Ba flux ratio, carbon export out of the surface layer is estimated at 1.8 +/- 0.45 mol C m(-2) yr(-1). Finally, we propose a climatological carbon budget for the Amundsen Gulf based on recent literature data and our findings, the latter bridging the surface and subsurface water carbon cycles.

Thomas, Helmuth; Shadwick, Elizabeth

2011-01-01

154

Elevation Changes of Ice Caps in the Canadian Arctic Archipelago  

Science.gov (United States)

Precise repeat airborne laser surveys were conducted over the major ice caps in the Canadian Arctic Archipelago in the spring of 1995 and 2000 in order to measure elevation changes in the region. Our measurements reveal thinning at lower elevations (below 1600 m) on most of the ice caps and glaciers, but either very little change or thickening at higher elevations in the ice cap accumulation zones. Recent increases in precipitation in the area can account for the slight thickening where it was observed, but not for the thinning at lower elevations. For the northern ice caps on the Queen Elizabeth Islands, thinning was generally less than 0.5 m/yr , which is consistent with what would be expected from the warm temperature anomalies in the region for the 5-year period between surveys and appears to be a continuation of a trend that began in the mid 1980s. Further south, however, on the Barnes and Penny ice caps on Baffin Island, this thinning was much more pronounced at over 1 m/yr in the lower elevations. Here temperature anomalies were very small, and the thinning at low elevations far exceeds any associated enhanced ablation. The observations on Barnes, and perhaps Penny are consistent with the idea that the observed thinning is part of a much longer term deglaciation, as has been previously suggested for Barnes Ice Cap. Based on the regional relationships between elevation and elevation-change in our data, the 1995-2000 mass balance for the region is estimated to be 25 cu km/yr of ice, which corresponds to a sea level increase of 0.064 mm/ yr . This places it among the more significant sources of eustatic sea level rise, though not as substantial as Greenland ice sheet, Alaskan glaciers, or the Patagonian ice fields.

Abdalati, W.; Krabill, W.; Frederick, E.; Manizade, S.; Martin, C.; Sonntag, J.; Swift, R.; Thomas, R.; Yungel, J.; Koerner, R.

2004-01-01

155

Sõiduautode treilervedajad loodavad tööle Euroopa Liidu Riikides / Sven Aria, Andres Sallo ; intervjueerinud Tanel Raig ; kommenteerinud Merike Riipinen  

Index Scriptorium Estoniae

Treilervedudele spetsialiseerunud OÜ Autologistika logistikadirektor Sven Aria ja OÜ Aatomik-Transport juhatuse esimees Andres Sallo vastavad küsimustele, mis puudutavad sõiduautode transpordi osatähtsust ettevõtte käibest, osatähtsuse vähenemist, edasisi plaane sõiduautode transpordiks mõeldud treilerite kasutamise osas ning kulude kokkuhoidu ettevõttes

Aria, Sven, 1968-

2009-01-01

156

Kas toiduainete hind on õiglane? Ei, isegi odav! / Andres Sooniste, Juhan Särgava, Kristjan Kongo, Kati Kusmin ; intervjueerinud Sulev Oll  

Index Scriptorium Estoniae

Vestlusringis toiduainete hindade üle arutamas on Tarbijakaitse ameti peadirektor Andres Sooniste, Põllumeeste Keskliidu president Juhan Särgava, Fazer Eesti ASi juhatuse esimees Kristjan Kongo ja ETK juhatuse esimees Kati Kusmin

2010-01-01

157

Esimene Eesti maja Hiinas = The first Estonian house in China / Andres Põime, Lauri Vaimel ; interv. Triin Ojari  

Index Scriptorium Estoniae

Vestlus Pekingi Eesti saatkonna arhitektuurikonkursi võidutöö autoritega. Tulemused: I preemia - Andres Põime, Lauri Vaimel, II - Erik Nobel, Christian Jensen, Kristen Herup Sovang, Soren Andersson, Pille Kivihall, Dan Ljungar, Hans Willadsen (Taani), III - Kalle Vellevoog, Velle Kadalipp, Tiiu Truus, Martin Prommik

Põime, Andres

2008-01-01

158

Mida arvate koolikohustusliku ea tõstmisest 18. eluaastani? / Eero Järvekülg, Boris Goldman, Rein Eglon, Andres Ammas...[jt.  

Index Scriptorium Estoniae

Küsimusele vastavad Carl Robert Jakobsoni nim. gümnaasiumi direktor Eero Järvekülg, Tartu linnavalitsuse haridusosakonna juhataja Boris Goldman, Pärnu Koidula gümnaasiumi direktor Rein Eglon, Haapsalu gümnaasiumi direktor Andres Ammas ja Väike-Maarja gümnaasiumi ja õppekeskuse direktor Raili Sirgmets

2008-01-01

159

The island as container: islands, archipelagos and player movement in video games  

Directory of Open Access Journals (Sweden)

Full Text Available The use of islands and archipelagos as settings in video games has proven enduring and popular: these locations are usually shown to be dangerous places where travel can be difficult. The use of island and archipelago settings in this medium developed along with conventions about water in general being an obstacle to traverse, meaning that player characters that experience islands and archipelagoes are forced to discover ways to travel around, over, and away from them. Islands remain popular settings because they work well with players’ preconceptions about these spaces, with people’s understandings of natural boundaries that make travel difficult, and with game designers’ intent to control player character movement throughout a world that is necessarily constrained by the reach of technology.

Elizabeth Nyman

2013-11-01

160

San Salvador Microbial Observatory  

Science.gov (United States)

This web site is home of the San Salvador Microbial Observatory, a project investigating the anhydrophilic, halotolerant microbial mats of San Salvador, Bahamas. This project has been developed to address the influence water availability has on structural diversification, community composition, production, and carbon sequestration in microbial mats. The web site includes general information about the project, a research description plan, an introduction to microbial mats, links to other microbial observatories and interesting sites, and a collection of photos. This is a helpful resource for those investigating microbial mat communities.

Steppe, Tim; Institute Of Marine Sciences, University O.

 
 
 
 
161

Mangrove forest composition and structure in Las Perlas Archipelago, Pacific Panama  

Scientific Electronic Library Online (English)

Full Text Available SciELO Costa Rica | Language: English Abstract in spanish Los bosques de manglar son ecosistemas importantes que proveen muchos servicios, pero éstos están bajo la amenaza de una variedad de actividades humanas y grandes áreas de manglar continúan perdiéndose en Panamá. Este estudio está enfocado en la estructura de manglar de las dos islas más grandes del [...] Archipiélago de Las Perlas en el Pacifico Panameño (LPA), la Isla del Rey y la Isla San José. La evaluación de las imágenes del satélite Landsat revela la pérdida de manglares en LPA de 965ha en el periodo entre 1974-1986, y de 286ha en el periodo 1986-2000. La mayor parte de la pérdida (>77%) en las dos islas estudiadas fue debida a la extracción de madera y al desarrollo agrícola. En mayo de 2006, se establecieron parcelas permanentes siguiendo el protocolo de CARICOMP en dos sitios en la isla del Rey (R1 y R2) y un sitio en la Isla San José (SJ) donde especies, altura y diámetro a la altura de la copa de árboles adultos y jóvenes fueron registradas. La estructura del bosque difirió en los tres sitios, sin embargo R1 y R2 fueron los más similares. En R1, Laguncularia racemosa fue la especie más dominante y Pelliceria rhizophora en R2. El análisis de la estructura del bosque y de imágenes clasificadas indicó que estos sitios son espacialmente dinámicos y parecen estar regenerándose. La estructura del bosque indica que el crecimiento en los sitios ha estado limitado por las actividades humanas y posiblemente por otros factores. SJ fue dominado por Rhizophora mangle y parece tener un bosque maduro con árboles adultos grandes y pocos jóvenes. Éste sitio no parece mostrar la misma extensión de rebrote espacial de los otros dos sitios entre 1986-2000 y es relativamente estático. El establecimiento de parcelas permanentes y el monitoreo serán útiles en la implementación del plan de manejo, ya que los manglares del LPA tienen una variedad estructural y podrían estar sujetos a un mayor desarrollo costero. Abstract in english Mangrove forest is an important ecosystem that provides many services, but in Panama, as in other countries, they are under threat due to a variety of human activities. Nowadays, large areas of mangroves continue to be lost without been described and lack of management strategies. This study focused [...] on the mangrove structure in the two largest islands, Isla del Rey and Isla San Jose, of Las Perlas Archipelago (LPA), Pacific Panama. Assessment of Landsat satellite imagery revealed loss of mangroves in the LPA of 965ha in the period 1974-1986, and 248ha in the period 1986-2000. The majority of the loss (>77%) from the two study islands was due to timber extraction and agricultural development. In May 2006, permanent plots following the CARICOMP protocol were established at two sites on Isla del Rey (R1 and R2) and one site on Isla San Jose (SJ) where standardized metrics such as species, height and diameter at breast height of adult trees and seedlings were recorded. Forest structure differed at the three sites, although R1 and R2 were most similar. At R1, Laguncularia racemosa was the important species and R2 was dominated by Pelliciera rhizophorae. Examination of the forest structure and classified imagery indicated that these sites are spatially dynamic and appear to be rejuvenating. The forest structure would indicate that the sites have been growth-limited previously by human activities and possibly by other factors. SJ was dominated by Rhizophora mangle and appears to have a mature forest with large adult trees and few seedlings. It does not appear to have shown the same extent of spatial regrowth as the other two sites between 1986 and 2000 and is relatively static. The establishment of permanent plots and monitoring will be useful as part of the management plan, as the LPA shows a variety of mangrove structures and could be subject to further coastal development. Rev. Biol. Trop. 58 (3): 857-869. Epub 2010 September 01.

Tom, McGowan; Sarah L, Cunningham; Héctor M, Guzmán; James M, Mair; José M, Guevara; Tanja, Betts.

162

Cross-shelf distribution of nutrients, plankton, and fish larvae in the San Blas Archipelago, Caribbean Panamá  

Directory of Open Access Journals (Sweden)

Full Text Available To investigate possible seasonal patterns in water quality and plankton distribution, weekly samples were collected in a coral reef lagoon and in surrounding nearshore waters over a two year period. Additionally, two oceanographic surveys were also conducted in a larger area surrounding the primary study site during the seasonal extremes. The resulting information corroborated previous observations that this area is as an oligotrophic environment. The larger-scale sampling revealed seasonal variation in cross-shelf gradients in plankton, fish-egg and larval densities that are probably related to the strong onshore winds that are typically present during the dry season. Although some limited nutrient enrichment occurs in parts of the nearshore area during the rainy season, the highest plankton density and biomass were recorded in shallow nearshore waters during the windy dry season. Larvae of numerous fish taxa were collected in these nearshore areas during the dry season, suggesting seasonal aggregation. During the rainy season, fish larvae were spread more evenly across the shelf and into nearshelf waters.

Luis D'Croz

1999-06-01

163

Tsunami hazard assessment for the Azores archipelago: a historical review  

Science.gov (United States)

The Azores islands due to its complex geographical and geodynamic setting are exposed to tsunamigenic events associated to different triggering mechanisms, local or distant. Since the settlement of the Azores, in the fifteenth century, there are several documents that relate coastal areas flooding episodes with unusually high waves which caused death and destruction. This work had as main objective the characterization of the different events that can be associated with tsunamigenic phenomena, registered in the archipelago. With this aim, it was collected diverse documentation like chronics, manuscripts, newspaper articles and magazines, scientific publications, and international databases available online. From all the studied tsunami events it was identified the occurrence of some teletsunamis, among which the most relevant was triggered by the 1st November 1755 Lisbon earthquake, with an epicenter SW of Portugal, which killed 6 people in Terceira island. It is also noted the teletsunami generated by the 1761 earthquake, located in the same region as the latest, and the one generated in 1929 by an earthquake-triggered submarine landslide in the Grand Banks of Newfoundland. From the local events, originated in the Azores, the most significant were the tsunamis triggered by 1757 and 1980 earthquakes, both associated with the Terceira Rift dynamics. In the first case the waves may also be due to earthquake-triggered. With respect to tsunamis triggered by sea cliffs landslides it is important to mention the 1847 Quebrada Nova and the 1980 Rocha Alta events, both located in the Flores Island. The 1847 event is the deadliest tsunami recorded in Azores since 10 people died in Flores and Corvo islands in result of the propagated wave. The developed studies improve knowledge of the tsunami sources that affected the Azores during its history, also revealing the importance of awareness about this natural phenomenon. The obtained results showed that the tsunami hazard in the Azores is mostly driven from the events triggered by distant earthquakes and local earthquakes and landslides. In this context, were identified 12 tsunami events. In another context, it were identified 6 events associated with coastal areas flooding due to floods and/or extreme weather phenomena, hypothetically identified as meteotsunamis. It should be stressed that, despite the differences associated with their triggering mechanisms, both the tsunamis generated by geological factors and those related to atmospheric phenomena may have similar impact. Although the absence of reports identifying tsunamis associated with volcanic activity, the eruptive history of the Azores active volcanoes shows high magnitude eruptions with considerable tsunamigenic potential.

Cabral, Nuno; Ferreira, Teresa; Queiroz, Maria Gabriela

2010-05-01

164

SAN PEDRO GEODATA BROWSER  

Science.gov (United States)

The San Pedro Data Browser was developed by the Landscape Ecology Branch of the U.S. Environmental Protection Agency (Las Vegas, NV). The goal of the Landscape Sciences Program is to improve decision-making relative to natural and human resource management through the development...

165

Remembering San Diego  

International Nuclear Information System (INIS)

After 6 years of existence the ITER EDA project in San Diego, USA, was terminated by desition of the US Congress. This article describes how nice it was for everybody as long as it lasted and how sad it is now

1999-07-01

166

Lean versus Quick Response Manufacturing og andre koncepter - er Lean den eneste ene?  

DEFF Research Database (Denmark)

Begrebet Lean har gennem de senere år vundet en enorm udbredelse. Antallet af publikationer om Lean har været eksplosivt stigende, og mange virksomheder har gennemført eller gennemfører Lean-projekter. Er Lean et nyt koncept? Er Lean den eneste løsning? Kan Lean kombineres med tankegange og principper fra andre koncepter? Artiklen er opdelt i fire hovedafsnit. I første afsnit skitseres baggrunden for Lean. I andet afsnit skitseres kort indholdet i Lean. I tredje afsnit skitseres tankegangen bag Quick Response Manufacturing - et begreb, der har mange ligheder med Lean, men som har fokus på løsning af en anden produktionsopgave. I fjerde afsnit skitseres kort relationerne mellem Lean og to andre begreber, Six Sigma og TPM, der begge har samme mål som Lean, men forskellige udgangspunkter og forskellige indfaldsvinkler.

Michelsen, Aage U

2005-01-01

167

Analysis of lichen species for atmospheric pollution biomonitoring in the Santo Andre municipality, Sao Paulo, Brazil  

International Nuclear Information System (INIS)

Instrumental neutron activation analysis was applied for the determination of trace elements in Canoparmelia texana species collected in nonpolluted areas of Atlantic Forest and in six sites of Santo Andre Municipality, SP, Brazil. Concentrations of As, Ba, Br, Ca, Cd, Cl, Cr, Cs, Co, Fe, K, La, Mn, Na, Rb, Sb, Sc, Se, U, and Zn were determined and comparisons were made between the results obtained in lichens from different sites

2007-09-01

168

San Jose, Costa Rica  

Science.gov (United States)

San Jose, capital city of Costa Rica, fills the valley between two steep mountain ranges. In this image made from data collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra satellite, visible, shortwave, and near-infrared wavelengths of light that the sensor observed have been combined to produce a false-color version of the scene in which vegetation is red, urban areas are silvery gray, water is dark blue, and clouds are white. The image was captured on February 8, 2007. San Jose is in the center of the image. The Rio Torres winds through downtown San Jose. Cartago, the much smaller colonial capital, sits in the lower right corner, while the city of Alajuela appears across the river, northwest of San Jose. The cities' manmade surfaces contrast sharply with the lushly vegetated landscape surrounding the city. Greenhouses are common in the region, and their glass roofs may be the brilliant white spots around the outer edges the cities. The long, straight runway of the Tobias Bolanos International Airport is visible as a dark line southeast of Alajuela. The landscape around the two cities shown here is rugged. Steep mountain peaks cast dark shadows across their leeward slopes. Patches of dark red vegetation on the mountains north of San Jose may be rainforest. Coffee plantations also cover the slopes of the mountains around the city. February is the dry season in Costa Rica. During the rainy season, from about April to November, clouds usually block the satellite's view of this tropical location. NASA image created by Jesse Allen, using data provided courtesy of Asaf Ullah and Tim Gubbels, SERVIR project.

2007-01-01

169

Carbon cycling in the Arctic Archipelago: the export of Pacific carbon to the North Atlantic  

Directory of Open Access Journals (Sweden)

Full Text Available The Arctic Ocean is expected to be disproportionately sensitive to climatic changes, and is thought to be an area where such changes might be detected. The Arctic hydrological cycle is influenced by: runoff and precipitation, sea ice formation/melting, and the inflow of saline waters from Bering and Fram Straits and the Barents Sea Shelf. Pacific water is recognizable as intermediate salinity water, with high concentrations of dissolved inorganic carbon (DIC, flowing from the Arctic Ocean to the North Atlantic via the Canadian Arctic Archipelago. We present DIC data from an east-west section through the Archipelago, as part of the Canadian International Polar Year initiatives. The fractions of Pacific and Arctic Ocean waters leaving the Archipelago and entering Baffin Bay, and subsequently the North Atlantic, are computed. The eastward transport of carbon from the Pacific, via the Arctic, to the North Atlantic is estimated.

Altered mixing ratios of Pacific and freshwater in the Arctic Ocean have been recorded in recent decades. Any climatically driven alterations in the composition of waters leaving the Arctic Archipelago may have implications for anthropogenic CO2 uptake, and hence ocean acidification, in the subpolar and temperate North Atlantic.

E. H. Shadwick

2009-01-01

170

Ecological footprint of road traffic on Cres-Lošinj Archipelago  

Directory of Open Access Journals (Sweden)

Full Text Available Cres-Lošinj Archipelago is the largest insular traffic unit in Northern Adriatic. The archipelago consists of two large islands, Cres and Lošinj, and 27 smaller islands located among Kvarner, Kvarneri?, Rijeka Bay and open sea. From the point of view of traffic, this area gravitates mostly toward Rijeka traffic node. Traffic development of the islands was determined in the second half of the 20th century with the development of ferry traffic and road traffic on the islands. Today, the Archipelago is characterized by prominent seasonal variations of road traffic intensity due to dominant role of tourism in space valorisation. This research included partial determination of Ecological Footprint of road traffic on the islands on the basis of CO2 emission and capacity of insular surfaces to absorb CO2.The author also created a model for calculating road mileage on the islands and indirectly calculated CO2 emission. The results indicated significant seasonal variations of CO2 emission on the islands, which are closely related to tourist valorisation of space and the number of non-residential vehicles on the islands. The paper also provides the ratio between residential and non-residential vehicles on the island, which influence the emission in accordance with their energy efficiency. The research showed that the capacity of CO2 absorption on Cres-Lošinj Archipelago is approximately 40 times greater than CO2 emission from road traffic during one year.

Hrvoje Grofelnik

2010-12-01

171

Forekomst av alkohol og andre rusmidler i blodprøver fra førere involvert i trafikkulykker  

Directory of Open Access Journals (Sweden)

Full Text Available  SAMMENDRAGBilkjøring stiller store krav til førernes sansing, oppmerksomhet, informasjonsbearbeiding og evne til åreagere. Førere som er under innflytelse av sentralnervøst aktive stoffer, vil derfor være en potensiell fare itrafikken. I perioden 1.8–31.12. 1993 identifiserte Statens rettstoksikologiske institutt (SRI 394 ulykkesføreresom politiet hadde rekvirert analyser av med hensyn på narkotiske stoff/sentralnervøst aktive medikamenter(andre rusmidler og/eller alkohol. Blodprøver fra disse førerne ble analysert med hensyn på alkohol og etutvidet repertoar av andre rusmidler ved SRI. Da polititjenestemenn og medtrafikanter ofte ikke vil oppdagepåvirkning av andre rusmidler enn alkohol, dels pga. manglende alkohollukt, vil andre rusmidler som ulykkesårsakvære noe underrepresentert i dette materialet sammenliknet med alkohol. Hos 299 av ulykkesførerneble det påvist alkohol og/eller andre rusmidler. 44 førere hadde tatt inn både alkohol og andre rusmidler, mensalkohol og andre rusmidler ble påvist alene i henholdsvis 204 og 51 saker. Totalt ble benzodiazepiner,cannabis, opiater og amfetamin påvist i henholdsvis 54, 30, 17 og 16 saker. Av de 95 som hadde tatt inn andrerusmidler, hadde 34 tatt inn mer enn ett rusmiddel (alkohol ikke medregnet og i 72 av tilfellene ble analysefunnenevurdert (AB og JM til sannsynligvis å ha gitt sentralnervøs påvirkning. Risikoøkningen for trafikkulykkeved nylig bruk av cannabisstoffer og diazepam i høydose ble estimert til å kunne tilsvare en blodalkoholkonsentrasjonpå 1-1,5 promille. Alkohol er det rusmiddel som oftest påvises hos ulykkesførere, menforekomsten av benzodiazepiner, cannabis og amfetamin er såvidt høy blant ulykkesførere at disse stoffenemå anses å være et alvorlig trafikksikkerhetsproblem.Bjørneboe A, Beylich K-M, Christophersen AS, Fosser S, Glad A, Mørland J.Prevalence of alcohol and other intoxicants in blood samples from drivers involved in road trafficaccidents.   ENGLISH SUMMARYIllegal and some legal drugs affect the central nervous system and drivers who use such drugs may represent ahazard in the road traffic. The prevalence of such drugs among drivers involved in accidents depends on theincrease of the accident risk due to the drug and on the prevalence of the drugs among drivers on the road. Inthis study we have examined blood samples from 394 drivers involved in road traffic accidents during theperiod August–December 1993, to determine the prevalence of alcohol and drugs among drivers involved inaccidents. Most of the drivers enrolled in the study were suspected by the police of driving under the influenceof alcohol or drugs. The data are, however, probably somewhat biased, because drivers influenced by alcoholor drugs will, if possible, avoid contact with the police. Furthermore, the police's ability to detect driversinfluenced by drugs is limited. Accordingly, the proportion of influenced drivers and especially drivers influencedby drugs could be too low compared with the proportion among all drivers involved in traffic accidents.In about 2/3 of the blood samples examined, alcohol was found either alone or together with other drugs,and in 1/4 of the cases drugs were found either alone or together with alcohol. The most prevalent drugs werebenzodiazepines (13.7%, cannabis (7.5%, opiates (4.3% and amphetamine (4.1%. In about 3/4 of the drugpositive cases the drug concentration was so high that it was considered likely or very likely that the driverwas influenced by the drug(s. The bias due to the police's inability to detect all drivers influenced by drugs50A. BJØRNEBOE OG MEDARBEIDEREwas estimated. After correction for this bias it was estimated that at least 2.7% of drivers involved in injuryaccidents will have significant concentrations of drugs in the blood and at least 4.4% will have significantblood alcohol concentrations.Based on various sources of drug use in Norway we arrived at rough estimates of increase in risk of beinginvolved in road traffic accidents after different drug intakes. Dr

Anders Bjørneboe m.fl

2009-10-01

172

San Francisco disaster  

Science.gov (United States)

A silent film from May of 1906 that seeks to simulate the San Francisco fire and earthquake using a small-scale model of the city. The film's realism and accuracy are questionable-the flames reach unrealistic heights, and the real fire was more scattered than the flame shown-but it marks an early attempt to visualize and recreate the disaster. The film is available in Real Media, QuickTime and MPEG format.

Company, American M.

173

78 FR 34895 - Safety Zone; San Francisco Independence Day Fireworks Display, San Francisco Bay, San Francisco, CA  

Science.gov (United States)

...Coast Guard 33 CFR Part 165 [Docket No. USCG-2013-0347] Safety Zone; San Francisco Independence Day Fireworks Display, San Francisco Bay, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of...

2013-06-11

174

Diversity and Distribution of Symbiodinium Associated with Seven Common Coral Species in the Chagos Archipelago, Central Indian Ocean  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Chagos Archipelago designated as a no-take marine protected area in 2010, lying about 500 km south of the Maldives in the Indian Ocean, has a high conservation priority, particularly because of its fast recovery from the ocean-wide massive coral mortality following the 1998 coral bleaching event. The aims of this study were to examine Symbiodinium diversity and distribution associated with scleractinian corals in five atolls of the Chagos Archipelago, spread over 10,000 km 2. Symbiodinium...

2012-01-01

175

“Teresa San Román, antropóloga”  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Después publicar de la entrevista a Ramón Valdés (v. Perifèria 5), continúa la colaboración de la revista con el Proyecto Entrevistas3. En esta ocasión los alumnos han entrevistado a la Catedrática de la UAB, Teresa San Román Espinosa. La entrevista tuvo lugar el pasado 25 de junio de 2007 en su despacho del departamento, en un ambiente muy cercano y distendido, dando como resultado un extenso pero a su vez ameno repaso por el recorrido vital e intelectual de una figura de referencia...

2007-01-01

176

Teresa San Roman, antropologa  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Después publicar de la entrevista a Ramón Valdés (v. Perifèria 5), continúa la colaboración de la revista con el Proyecto Entrevistas3. En esta ocasión los alumnos han entrevistado a la Catedrática de la UAB, Teresa San Román Espinosa. La entrevista tuvo lugar el pasado 25 de junio de 2007 en su despacho del departamento, en un ambiente muy cercano y distendido, dando como resultado un extenso pero a su vez ameno repaso por el recorrido vital e intelectual de una figura de referencia...

2007-01-01

177

The Comores archipelago in the western Indian Ocean: volcanology, geochronology and geodynamic setting  

Science.gov (United States)

New petrological and geochronological data on the Comores archipelago are presented. The K?Ar ages measured on subaerial volcanics range from 8 Ma in Mayotte Island to 0 in Grande Comore but the migration of the volcanic activity in the archipelago does not appear clearly. For each island the beginning of the volcanism remains unknown. The widespread volcanism of the western Indian Ocean is briefly reviewed and replaced in the geophysical framework of this region. The classical Seychelles-northern Madagascar-Mayotte-Grande Comore hot spot hypothesis is questioned. A more or less synchronous alkaline magmatism along old lithospheric fractures (from Madagascar continent toward Comores oceanic islands), periodically reactivated during Tertiary times, could be an alternative interpretation.

Nougier, J.; Cantagrel, J. M.; Karche, J. P.

178

San Kamphaeng geothermal field  

Energy Technology Data Exchange (ETDEWEB)

San Kamphaeng geothermal field is one of the most promising and extensively studied areas in Thailand. Geological studies at scale 1/10,000 indicate that the area is composed of the oldest Mae Tha Formation of Carboniferous, Kiu Lom Formation of Middle Permian, granites and andesites of triassic and alluvial deposits. The area is a horst-and-graben type bordered by normal faults, the Huai Pong fault and the Huai Mae Koen fault, trending in the NNW-SSE direction. Chemical alteration zones of outcrops indicate that hydrothermal solution causing the alteration is possibly and intermediate-to-acidic liquid of less than 200{degree}C temperature. Seismic studies indicate that the faults along the hot spring area and adjacent are still active and the geothermal fluids circulate and upflow along these conduits to the surface. In conclusion, the potential geothermal area in the San Kamphaeng geothermal system is confined to Ban Pong Nok District, where actual manifestations are found on the surface and N-S and NW-SE trending faults are perceived.

Thienprasert, Amnuaychai; Raksaskulwong, Manop; Surinkum, Adichat

1988-11-10

179

San Fernando Valley History  

Science.gov (United States)

A historical tour through the world of San Fernando Valley is always a good idea, and the folks at the California State University-Northridge have made this possible via their amazing archive of digitized materials. The project is based at their Oviatt Library, and it contains historically significant documents, manuscripts, photographs and related graphic materials from public and private collections in the San Fernando Valley. The project started in 2000, and today visitors can browse the collection at their leisure. First-time visitors can look over the "Topics" here, which include "Animals", "Economics", "Industries", and six other areas. The "Communities" area features a fun map with all of the communities of the area on it. Clicking on one of the icons will take users to archived items associated with each place. Also, visitors shouldn't miss the "Transportation" tab as they can view classic images of the old Pacific Electric Railway as well as images of early bus terminals and more contemporary shots of Amtrak in action.

180

Patterns of Coral Disease across the Hawaiian Archipelago: Relating Disease to Environment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In Hawaii, coral reefs occur across a gradient of biological (host abundance), climatic (sea surface temperature anomalies) and anthropogenic conditions from the human-impacted reefs of the main Hawaiian Islands (MHI) to the pristine reefs of the northwestern Hawaiian Islands (NWHI). Coral disease surveys were conducted at 142 sites from across the Archipelago and disease patterns examined. Twelve diseases were recorded from three coral genera (Porites, Montipora, Acropora) with Porites havin...

Aeby, Greta S.; Williams, Gareth J.; Franklin, Erik C.; Kenyon, Jean; Cox, Evelyn F.; Coles, Steve; Work, Thierry M.

2011-01-01

 
 
 
 
181

Across the margins : cultural identity and change in the Atlantic archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

"Across the margins offers a comparative, theoretically informed analysis of the cultural formation of the Atlantic Archipelago. In its overall conception and in specific contributions (including an introductory essay), this collection demonstrates the benefits of working across the disciplines of history, geography, literature and cultural studies, but also presents new configurations of cultural forms hitherto associated with specifically national and sub-national literatures. The essays, f...

Norquay, Glenda; Smyth, Gerry

2002-01-01

182

Evaluation of the maize ( Zea mays L.) diversity on the Archipelago of Madeira  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract The variability of 43 open-pollinated populations of maize (Zea mays L.), representing a wide range of ecological conditions on the Archipelago of Madeira, was evaluated based on the morphological and reproductive traits. Individual data of 41 traits related to earliness, plant and tassel structure and the shape of the ear and grain were analysed using multivariate analysis. The populations belonging to two major maize varieties were grouped into four groups by their degree of dissi...

Carvalho, Miguel Pinheiro; Gananc?a, Jose?; Abreu, Ivo; Sousa, Ne?lia; Santos, Teresa Dos; Vieira, Maria Clemente; Motto, Mario

2008-01-01

183

Social, Economical and Technical Evaluation of a reverse osmosis drinking water plant in the Stockholm Archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The drinking water plant in this case study is a combined groundwater and reverse osmosisplant in the Stockholm archipelago. The reverse osmosis purification step was added to theplant in 1995. This technique is relatively new in Sweden and there are possibilities for it tobecome a good complement to conventional drinking water treatment. The plant has used thistechnique for over 10 years with good results. It is therefore of great interest to evaluate anddocument it for the possibility to im...

Lindkvist, Jonas

2007-01-01

184

Modelling population persistence on islands: mammal introductions in the New Zealand archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Islands are likely to differ in their susceptibility to colonization or invasion due to variation in factors that affect population persistence, including island area, climatic severity and habitat modification. We tested the importance of these factors in explaining the persistence of 164 introductions of six mammal species to 85 islands in the New Zealand archipelago using survival analysis and model selection techniques. As predicted by the theory of stochastic population growth, extinctio...

Duncan, Richard P.; Forsyth, David M.

2006-01-01

185

Insecticide susceptibility of Aedes aegypti populations from Senegal and Cape Verde Archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background Two concomitant dengue 3 (DEN-3) epidemics occurred in Cape Verde Archipelago and Senegal between September and October 2009. Aedes aegypti was identified as the vector of these epidemics as several DEN-3 virus strains were isolated from this species in both countries. The susceptibility to pyrethroids, organochlorine, organophosphates and carbamate was investigated in two field strains of Aedes aegypti from both countries using WHO diagn...

2012-01-01

186

Terrestrial invasion of pomatiopsid gastropods in the heavy-snow region of the Japanese Archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background Gastropod mollusks are one of the most successful animals that have diversified in the fully terrestrial habitat. They have evolved terrestrial taxa in more than nine lineages, most of which originated during the Paleozoic or Mesozoic. The rissooidean gastropod family Pomatiopsidae is one of the few groups that have evolved fully terrestrial taxa during the late Cenozoic. The pomatiopsine diversity is particularly high in the Japanese Archipelago and the t...

Kameda Yuichi; Kato Makoto

2011-01-01

187

Sharply increased mass loss from glaciers and ice caps in the Canadian Arctic Archipelago.  

Science.gov (United States)

Mountain glaciers and ice caps are contributing significantly to present rates of sea level rise and will continue to do so over the next century and beyond. The Canadian Arctic Archipelago, located off the northwestern shore of Greenland, contains one-third of the global volume of land ice outside the ice sheets, but its contribution to sea-level change remains largely unknown. Here we show that the Canadian Arctic Archipelago has recently lost 61?±?7?gigatonnes per year (Gt?yr(-1)) of ice, contributing 0.17?±?0.02 mm?yr(-1) to sea-level rise. Our estimates are of regional mass changes for the ice caps and glaciers of the Canadian Arctic Archipelago referring to the years 2004 to 2009 and are based on three independent approaches: surface mass-budget modelling plus an estimate of ice discharge (SMB+D), repeat satellite laser altimetry (ICESat) and repeat satellite gravimetry (GRACE). All three approaches show consistent and large mass-loss estimates. Between the periods 2004-2006 and 2007-2009, the rate of mass loss sharply increased from 31?±?8?Gt?yr(-1) to 92?±?12?Gt?yr(-1) in direct response to warmer summer temperatures, to which rates of ice loss are highly sensitive (64?±?14?Gt?yr(-1) per 1?K increase). The duration of the study is too short to establish a long-term trend, but for 2007-2009, the increase in the rate of mass loss makes the Canadian Arctic Archipelago the single largest contributor to eustatic sea-level rise outside Greenland and Antarctica. PMID:21508960

Gardner, Alex S; Moholdt, Geir; Wouters, Bert; Wolken, Gabriel J; Burgess, David O; Sharp, Martin J; Cogley, J Graham; Braun, Carsten; Labine, Claude

2011-05-19

188

Biogeographical determinants for total and endemic species richness in a continental archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We examined the relationship between plant species richness and biogeographical variables (island area, island maximum elevation, distance from nearest inhabited island, distance from nearest mainland) using a data set comprising 201 islands of the Aegean archipelago. We found that endemic species richness was strongly correlated to total species richness. Single-island endemic species richness was most strongly correlated to island maximum elevation, and then to island area, with an apparent...

Kallimanis, A.; Bergmeier, E.; Panitsa, M.; Georghiou, K.; Delipetrou, P.; Dimopoulos, P.

2009-01-01

189

Morphometric analysis of the black rat, Rattus rattus, from Congreso Island (Chafarinas Archipelago, Spain)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Black rats, Rattus rattus, from Chafarinas Archipelago constitute one of the westernmost insular populations of the species in the Mediterranean region. To evaluate the influence of insular conditions on body and skull dimensions, the biometric characteristics of a sample from Congreso island were determined and compared with nearby mainland populations (Málaga -southeastern Iberia- and Morocco). Results show that Congreso specimens are similar in size to Iberian specimens and in skull shape...

Ventura, Jacint

2000-01-01

190

New distributional data on the Orthoptera (Saltatoria of the northern Dodecanese (“Southern Sporadhes” Archipelago, Greece  

Directory of Open Access Journals (Sweden)

Full Text Available A catalogue of Orthoptera species collected during 1997 from isolated islets of the northern Dodecanese archipelago, Greece, is presented. Information on related taxonomical aspects and ecological parameters is also given.

Se presenta un catálogo de especies de Ortópteros recogidos durante 1997 en pequeñas islas aisladas del archipiélago del norte del Dodecaneso (Espóradas del sur, Grecia También se incluye información sobre algunos aspectos taxonómicos y ecológicos de las especies recolectadas.

Papapavlou, K. P.

2005-06-01

191

New distributional data on the Orthoptera (Saltatoria) of the northern Dodecanese (“Southern Sporadhes”) Archipelago, Greece  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A catalogue of Orthoptera species collected during 1997 from isolated islets of the northern Dodecanese archipelago, Greece, is presented. Information on related taxonomical aspects and ecological parameters is also given.

Se presenta un catálogo de especies de Ortópteros recogidos durante 1997 en pequeñas islas aisladas del archipiélago del norte del Dodecaneso (Espóradas del sur, Grecia) También se incluye información sobre algunos aspectos taxonómicos y ecológic...

2005-01-01

192

A new species of Meryta (Araliaceae from the Marquesas Archipelago, French Polynesia  

Directory of Open Access Journals (Sweden)

Full Text Available Meryta pastoralis F. Tronchet & Lowry, a new species from the island of Hiva Oa in the Marquesas archipelago, is described and illustrated. It differs from other Polynesian members of the genus by its fully free ovaries, a feature shared with one other species found in the region, M. choristantha (native to the Austral Islands, from which it can be distinguished by its noticeably different leaf shape. A preliminary conservation assessment indicates that M. pastoralis is Critically Endangered.

Porter Lowry II

2011-07-01

193

Inocybe tauensis, a new species from the Samoan Archipelago with biogeographic evidence for a Paleotropical origin.  

Science.gov (United States)

Inocybe tauensis is described as a new species from the island of Ta'u, American Samoa. The species occurs in native littoral forest and is associated with the ectomycorrhizal tree Pisonia grandis. Based on an analysis of nLSU, RPB1, and RPB2 sequence data, I. tauensis appears to be derived from ancestors with a Paleotropical biogeographical distribution. Alternative explanations for the unexpected presence of an Inocybe species in the Samoan Archipelago are discussed. PMID:20943188

Kropp, Bradley R; Albee-Scott, Steven

2010-09-01

194

Tectonic development of the Indonesian archipelago and its bearing on the occurrence of hydrocarbons  

Energy Technology Data Exchange (ETDEWEB)

The present geological and tectonic configuration of the Indonesian archipelago may represent a typical triple junction plate convergence, which has developed since Neogene times due to the northward-moving Indo-Australian plate, the westward-moving Pacific plate, and the south-southeastward-moving Eurasian Craton. The occurrence of a number of microcontinents in eastern Indonesia makes the geology and tectonics of the region more complex. The archipelago is one of the most complicated regions from the plate tectonics point of view. The geological evolution of the Indonesian archipelago is recorded by the occurrence of both tectonic convergence and tectonic divergence. Various types of plate convergences include a Cordilleran type subduction, which has been reoccurring since Paleozoic until present times in western Indonesia; a Neogene Tethyan type collision in the Banda region; and a double-arc collision in northern Maluku, central Indonesia. Tectonic divergence, which was preceded by rifting due to thermal doming and magma rise in the northern margins of the Australian Craton and followed by the detachment and west-northwestward displacement of continental fragments in Mesozoic, gave rise to the development of the microcontinents in eastern Indonesia.

Simanjuntak, T.O. (Geological Research and Development Center, Bandung (Indonesia))

1994-07-01

195

Historical analysis (2000-2005) of the coastal water quality in San Andrés Island, SeaFlower Biosphere Reserve, Caribbean Colombia.  

Science.gov (United States)

To understand the coastal water quality of San Andrès Island, and provide tools for the management of its marine resources, we present the historical analysis of the island monitoring, which includes ammonia, nitrites, nitrate, phosphates, fecal and total coliforms. The anthropogenic pressure on the coastal system is heavy, with water nutrification, posing at risk seagrass and coral ecosystems. During dry season, biologically available nitrogen is 3-9 times higher than the maximum recommended for coral reefs, while during wet season values are 2-6.4 times the maximum. Biologically available phosphorous is also high, 1-8 times the maximum during dry season, 2-13 times during wet season. In some sites the concentration of pathogenic bacteria is above the limits set by law for primary and secondary contact. It is urgent to improve the management of sewage discharge, the main polluting source of San Andres coastal waters. PMID:20219216

Gavio, Brigitte; Palmer-Cantillo, Shelly; Mancera, J Ernesto

2010-07-01

196

Revmatoid artritt i Norge – demografi, sykdomskarakteristika og behandling. En sammenligning med andre europeiske land og USA  

Directory of Open Access Journals (Sweden)

Full Text Available Bakgrunn: Revmatoid artritt (RA er en kronisk inflammatorisk leddsykdom som gir økt sykelighet og dødelighet. Nye biologiske legemidler har de siste 10 årene bedret prognosen betydelig. I 2005 ble QUEST-RA (Quantitative Standard Monitoring of Patients with Rheumatoid Arthritis prosjektet etablert for å sammenligne sykdomsstatus og behandling hos RA-pasienter i forskjellige land. I denne artikkelen presenteres status for RA-pasienter i Norge sammenlignet med andre europeiske land og USA.Materiale og metode: Tilfeldig utvalgte RA-pasienter fulgt opp ved revmatologisk poliklinikk ved Sørlandet sykehus i Kristiansand (n=100 og St. Olavs Hospital i Trondheim (n=100 ble inkludert. I henhold til protokoll ble demografiske, sykdoms- og behandlingsdata registrert.Resultater: Norske RA-pasienter skilte seg lite fra gjennomsnittet i andre land med hensyn til alder, utdannelse og sykdomsvarighet. Sykdomsalvorlighet og sykdomsstatus til norske RA-pasienter er sammenlignbare med pasienter fra land som har lavest sykdomsaktivitet og best helsestatus. I Norge er andelen som behandles med biologiske legemidler ca 30%, og Norge er blant de land med størst andel pasienter som behandles med denne legemiddelgruppen. Fortolkning: RA-pasienter i Norge er blant de i Europa som har lavest sykdomsaktivitet. En årsak antas å være den relativt utbredte bruken av biologiske legemidler i Norge.

Tuulikki Sokka

2012-11-01

197

Experimental Constraints on the Tholeiitic-Alkalic Transition in Kerguelen Archipelago Basalts  

Science.gov (United States)

The Kerguelen Archipelago is the emergent part of the 19-20 km thick Northern Kerguelen Plateau (NKP), which is located on the nearly stationary Antarctic plate. The NKP began to form at ~40 Ma, when the Southeast Indian Ridge and the Kerguelen mantle plume were coincident, and since 40 Ma, the ridge has moved to the north relative to the NKP. Lava compositions range from tholeiitic at Site 1140 (34 Ma) on the northern edge of the NKP, to transitional for the 26-29 Ma flood basalts on the archipelago, to alkaline for the youngest (24-25 Ma) volumetrically important lava sequences on the archipelago. Primary variations in the alkalinity of basaltic magmas are considered to result from changes in the extents of partial melting or through the effects of clinopyroxene (cpx) fractionation. The presence of rounded, high-Al cpx phenocrysts in the mildly alkalic lavas of the 24 Ma Mont Crozier section on the Kerguelen Archipelago is suggestive of a high-pressure crystallization environment. We performed a series of equilibrium crystallization experiments on a powder of natural basalt from Mont Crozier (dry and slightly hydrous, 1.2 wt% H2O) both at relatively high (0.4 to 1.4 GPa, piston cylinder) and low (<0.1 MPa, vacuum furnace) pressures to test the fractionation effect of cpx on alkalinity changes. The observed geochemical trends for the experimental glasses show that hydrous, high-pressure (0.9 GPa), high-Al (8-10 wt% Al2O3) cpx-only fractionation produces nearly all of the required geochemical trends, especially Al-enrichment, observed in the Crozier lavas. Cpx-only fractionation, however, does not significantly increase alkalinity at these pressures. Major alkalinity changes must then reflect decreasing extents of melting, or deeper melting, within the Kerguelen mantle plume. The tholeiitic-alkalic transition on the Kerguelen Archipelago is related to progressive deepening of the lithosphere-asthenosphere limit (lowering melting) and of the crust-mantle interface (site of high-pressure cpx fractionation) with time as it moved from a ridge-centered position to an intraplate setting.

Lo Cascio, M.; Lo Cascio, M.; Scoates, J. S.; Weis, D.; Damasceno, D.

2001-12-01

198

San Francisco Historical Photograph Collection  

Science.gov (United States)

In the 1936 film, "San Francisco" Jeannette MacDonald sings the film's title song, which of course includes the Gus Kahn-penned lyric "San Francisco, welcome me home again/I'm not at home to go roaming no more." For those who might be pining for Baghdad by the Bay (or for images from the infamous earthquake in 1906), this online collection from the San Francisco Public Library will be most welcome. All told, the San Francisco Historical Photograph Collection contains more than 250,000 photographs of San Francisco and California, although not all of these photographs are available online here. Visitors should begin their voyage through these images by using their search engine, which allows them to search by photographer, subject index, or by date. Perhaps the most novel way to search the images is to look through the photos by using an interactive map of the entire city. Here visitors can find photographs of the historic Moulin Rouge nightclub in the historic Barbary Coast area, or move on over to Sutro Heights over on the Pacific Ocean. For those who might be feeling a bit less adventurous, there are a number of thematic collections, including "Picture This: Family Photographs of Everyday San Francisco".

199

Northern California near San Francisco  

Science.gov (United States)

A part of northern California centered near San Francisco Bay (38.0N, 122.0W) photographed at 3 p.m. January 1, 1974, from the Skylab space station in Earth orbit. This near vertical view encompasses the coastline from Monteray Bay (right) to about 50 miles north of Point Reyes (left) and includes, from bottom to top, San Francisco Bay (center), Sacramento Valley (left center), San Joaquin Valley (right center), and the snow-covered Sierra Nevada. Afternoon shadows sharply delineate a valley which parallels San Francisco Bay, crosses Point Reyes, and lies between the Bay and the Pacific coastline. This valley marks the location of the San Andreas Fault. Forces acting on the crust are causing the land west (bottom) of the fault line to move north relative to land on the east side. Agricultural areas in the Sacramento and San Joaquin Valleys are indicated by the tan areas which are easily discerned in contrast to the green-gray background.

1974-01-01

200

San Bernardino County Museum  

Science.gov (United States)

The San Bernardino County Museum is a regional museum with exhibits and collections in cultural and natural history. Special exhibits, the Exploration Station live animal discovery center, extensive research collections, and public programs for adults, families, students, and children are all part of the museum experience. The Museum is surrounded by citrus groves, and orange blossoms perfume the air. The Zimmerman Citrus Kiosk explores citrus agricultural history in Southern California. Death Valley Alive! is a new traveling exhibit, available for rent, where visitors can explore the natural history and culture of the Death Valley region from its geologic beginnings 1.3 billion years ago. Online exhibits include The Importance of Museum Collections, The Barstow Fossil Beds, Motherlode of the Miocene, The Etiwanda Fan, and for kids, Mimicry, a study in camouflage and adaptation. Teacher Resources include professional development and workshops, and Trading Places, where 21 hours of time spent volunteering in the Museum earns a free program for your class. Sample opportunities include writing activities for study kits, developing post-visit activities, creating a museum gallery guide, translating student materials into Spanish, or developing an independent idea. There are programs for youth, Scouts, and adults, as well as various publications available in anthropology, archeology, biology, geology and history.

 
 
 
 
201

Fine-Scale Delineation of the Location of and Relative Ground Shaking within the San Andreas Fault Zone at San Andreas Lake, San Mateo County, California.  

Science.gov (United States)

The San Francisco Public Utilities Commission is seismically retrofitting the water delivery system at San Andreas Lake, San Mateo County, California, where the reservoir intake system crosses the San Andreas Fault (SAF). The near-surface fault location a...

2013-01-01

202

75 FR 27432 - Security Zone; Golden Guardian 2010 Regional Exercise; San Francisco Bay, San Francisco, CA  

Science.gov (United States)

...Golden Guardian 2010 Regional Exercise; San Francisco Bay, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION: Temporary...security zones on the navigable waters of the San Francisco Bay in support of Golden Guardian 2010...

2010-05-17

203

76 FR 38305 - Safety Zone; San Francisco Chronicle Fireworks Display, San Francisco, CA  

Science.gov (United States)

...No. USCG 2011-0402] Safety Zone; San Francisco Chronicle Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION...enforce the safety zones for the annual San Francisco Chronicle Fireworks Display...

2011-06-30

204

75 FR 35651 - Safety Zone; San Francisco Chronicle Fireworks Display, San Francisco, CA  

Science.gov (United States)

...No. USCG 2010-0367] Safety Zone; San Francisco Chronicle Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION...Independence Day Celebration for the City of San Francisco Fireworks safety zone from 11 a.m....

2010-06-23

205

77 FR 15260 - Safety Zone; San Francisco Fireworks Display, San Francisco, CA  

Science.gov (United States)

...Docket No. USCG 2012-0105] Safety Zone; San Francisco Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION: Notice...Guard will enforce the safety zone for the San Francisco Giants Fireworks Display in the Captain of...

2012-03-15

206

76 FR 81371 - Safety Zone; San Francisco New Year's Eve Fireworks Display, San Francisco, CA  

Science.gov (United States)

...USCG 2011-1038] Safety Zone; San Francisco New Year's Eve Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION...enforce the safety zone for the annual San Francisco New Year's Eve Fireworks Display in...

2011-12-28

207

Momsfradragsret i forbindelse med erhvervelse, besiddelse og salg af aktier samt andre kapitalandele  

DEFF Research Database (Denmark)

I momssystemet er transaktioner i forbindelse med aktier og andre kapitalandele underkastet en særlig regulering i form af momsfritagelse. Udgangspunktet i momssystemet er, at denne momsfritagelse afskærer fradragsret for moms afholdt i forbindelse med gennemførelse af sådanne transaktioner. Trods dette klare udgangspunkt giver spørgsmålet om fradragsret i forbindelse med erhvervelse, besiddelse og salg af aktier fortsat anledning til betydelig tvivl. I nærværende artikel søges den gældende retstilstand belyst og analyseret; herunder udsondres de problemstillinger, der fortsat må anses for uafklarede. I forlængelse heraf søges det prognosticeret, hvorledes EF-domstolen må antages at forholde sig til disse endnu ikke afklarede problemstillinger.

Jensen, Dennis Ramsdahl; Stensgaard, Henrik

2006-01-01

208

The Andre-Oort conjecture for products of Drinfeld modular curves  

CERN Multimedia

Let $Z=X_1\\times...\\times X_n$ be a product of Drinfeld modular curves. We characterize those algebraic subvarieties $X \\subset Z$ containing a Zariski-dense set of CM points, i.e. points corresponding to $n$-tuples of Drinfeld modules with complex multiplication (and suitable level structure). This is a characteristic $p$ analogue of a special case of the Andr\\'e-Oort conjecture. We follow closely the approach used by Bas Edixhoven in characteristic zero, see math.NT/0302138. Note that in this paper we assume that the characteristic $p$ is odd, and we only treat the case of Drinfeld $F_q[T]$-modules.

Breuer, F

2003-01-01

209

Genetic diversity and population structure of an insular tree, Santalum austrocaledonicum in New Caledonian archipelago  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We present a study of the genetic diversity and structure of a tropical tree in an insular system. Santalum austrocaledonicum is endemic to the archipelago of New Caledonia and is exploited for oil extraction from heartwood. A total of 431 individuals over 17 populations were analysed for eight polymorphic microsatellite loci. The number of alleles per locus ranged from 3 to 33 and the observed heterozygosity per population ranged from 0.01 in Maré to 0.74 in Ile des Pins. The genetic divers...

2005-01-01

210

Spatial structure of the M 2 tidal wave in the canadian arctic archipelago  

Science.gov (United States)

The surface M 2 tide in the Canadian Arctic Archipelago (CAA) is reproduced on the basis of the QUODDY-4 three-dimensional finite-element hydrodynamic model. Particular emphasis has been placed on comparing model estimates for the amplitudes and phases of tidal elevations and the parameters of ellipses (major semiaxis and eccentricity) of the barotropic tidal current velocity with observational data. We present their spatial distributions and the distributions of averaged (over a tidal cycle) values of the density, horizontal transfer, and dissipation rate of barotropic tidal energy. It is found that the CAA is a much less effective dissipator of barotropic tidal energy than the World Ocean.

Kagan, B. A.; Sofina, E. V.

2012-04-01

211

Monitoring Arctic Sea ice using ERTS imagery. [Bering Sea, Beaufort Sea, Canadian Archipelago, and Greenland Sea  

Science.gov (United States)

Because of the effect of sea ice on the heat balance of the Arctic and because of the expanding economic interest in arctic oil and other minerals, extensive monitoring and further study of sea ice is required. The application of ERTS data for mapping ice is evaluated for several arctic areas, including the Bering Sea, the eastern Beaufort Sea, parts of the Canadian Archipelago, and the Greenland Sea. Interpretive techniques are discussed, and the scales and types of ice features that can be detected are described. For the Bering Sea, a sample of ERTS imagery is compared with visual ice reports and aerial photography from the NASA CV-990 aircraft.

Barnes, J. C.; Bowley, C. J.

1974-01-01

212

Jõekääru Jazz täitis eesmärgi nii korraldajate, esinejate kui publiku poolelt / Allan Liik, Hedvig Hanson, Andre Maaker, Ain Agan...[jt.] ; foto ja küsitl. Kaire Tensuda  

Index Scriptorium Estoniae

Jõekääru Jazz'ile järgneval nädalal tõi ürituse peakorraldaja Allan Liik toimetusse seal esinenud muusikud. Vestlusringis olid: Allan Liik, Hedvig Hanson, Andre Maaker, Ain Agan, Raivo Tafenau ja Sergio Bastos

2007-01-01

213

1 küsimus noorele juhile : Kui raha ja aeg ei piira, siis mida tahaksite elus juurde õppida? / Jekaterina Eilart, Andres Urb, Mariana Kolesnik... [jt.  

Index Scriptorium Estoniae

Küsimusele vastavad Hamburg ja Partnerid töötaja Jekaterina Eilart, Sampo Life Eesti varahaldur Andres Urb, Marati peadisainer Mariana Kolesnik, katusefirma Evari juht Rain Kala, endine tudengiorganisatsiooni AIESEC Eesti president Lauri Lahi ning internetiturundaja Marjam Vaher

2010-01-01

214

Surmahiirte tants; Pühapäeva hommik; Unistus venna külaskäigust; Kolm päeva voodipuhkust; Veepiir; Ei sugutunnuseid ega muid iseärasusi : [Luuletused] / Wallace Stevens ; inglise k. tlk. ja järelsõna: Andres Ehin  

Index Scriptorium Estoniae

Autorist lk. 212. Luuletuste 'Unistus venna külaskäigust', 'Kolm päeva voodipuhkust', 'Veepiir' ja 'Ei sugutunnuseid ega muid iseärasusi', mis on samuti ekslikult sealsamas W. Stevensile omistatud, autor on tegelikult Carlos Stewal. Vt. Ehin, Andres. Veavabandus // Looming. 1995. Nr. 5. Lk. 718

Stevens, Wallace

1996-01-01

215

Characterization of the grafting copolymer EPDM-SAN; Caracterizacao do copolimero de enxertia EPDM-SAN  

Energy Technology Data Exchange (ETDEWEB)

This work aims the characterization of the grafting copolymer EPDM-SAN. This copolymer presents a fraction of free SAN chains, which was extracted by solubilization in chloroform followed of precipitation of the grafting copolymer EPDM-g-SAN in acetone. The EPDM-SAN and EPDM-g-SAN were characterized by {sup 13}C NMR, DSC, TGA and SEM. EPDM-SAN contain 23 wt% of free SAN and 77 wt% of EPDM-g-SAN. Both materials are heterogeneous and the thermal and thermo-oxidative degradation are independent of the composition. (author)

Turchette, Renato; Felisberti, Maria Isabel [Universidade Estadual de Campinas, SP (Brazil). Inst. de Quimica]. E-mail: turchete@iqm.unicamp.br

2001-07-01

216

77 FR 15798 - Notice of Intent To Repatriate Cultural Items: San Francisco State University, San Francisco, CA  

Science.gov (United States)

...of Intent To Repatriate Cultural Items: San Francisco State University, San Francisco, CA AGENCY: National Park Service, Interior...SUMMARY: The San Francisco State University, in consultation with...

2012-03-16

217

Present situation and future prospects of electricity generation in Aegean Archipelago islands  

International Nuclear Information System (INIS)

The Aegean Archipelago is a remote Hellenic area, including several hundreds of scattered islands of various sizes. In these islands more than 600,000 people are living mainly in small remote communities. The main economical activities of the islanders are apart from tourism, seafaring, fishery, agriculture and stock farming. One of the major problems of the area is the insufficient infrastructure, strongly related with the absence of an integrated and cost-effective electrification plan. In this context, the present work is concentrated on analyzing the present situation and demonstrating the future prospects of electricity generation in the Aegean Archipelago islands. For this purpose, one should first investigate the time evolution of the corresponding electricity generation parameters (i.e. annual electricity consumption, peak power demand, capacity factor, specific fuel consumption) for the last 30 years. Subsequently, the corresponding diesel and heavy-oil consumption along with the electricity production cost for every specific autonomous power station of the area are investigated. Special attention is paid in order to estimate the contribution of renewable energy sources (RES) in the energy balance of each island. Finally, an attempt is made to describe in brief the most realistic electricity production solutions available, including the operation of hybrid RES-based power plants in collaboration with appropriate energy storage facilities. Additionally, the idea of connecting the islands of the area with the mainland and interconnecting them is also taken into consideration

2007-09-01

218

Phylogeography of Japanese horse chestnut (Aesculus turbinata) in the Japanese Archipelago based on chloroplast DNA haplotypes.  

Science.gov (United States)

Japanese horse chestnut (Aesculus turbinata: Hippocastanaceae) is one of the typical woody plants that grow in temperate riparian forests in the Japanese Archipelago. To analyze the phylogeography of this plant in the Japanese Archipelago, we determined cpDNA haplotypes for 337 samples from 55 populations covering the entire distribution range. Based on 1,313 bp of two spacers, we determined ten haplotypes that are distinguished from adjacent haplotypes by one or two steps. Most of the populations had a single haplotype, suggesting low diversity. Spatial analysis of molecular variance suggested three obvious phylogeographic structures in western Japan, where Japanese horse chestnut is scattered and isolated in mountainous areas. Conversely, no clear phylogeographic structure was observed from the northern to the southern limit of this species, including eastern Japan, where this plant is more common. Rare and private haplotypes were also found in southwestern Japan, where Japanese horse chestnuts are distributed sparsely. These findings imply that western Japan might have maintained a relatively large habitat for A. turbinata during the Quaternary climatic oscillations, while northerly regions could not. PMID:20549293

Sugahara, Kanako; Kaneko, Yuko; Ito, Satoshi; Yamanaka, Keisuke; Sakio, Hitoshi; Hoshizaki, Kazuhiko; Suzuki, Wajiro; Yamanaka, Norikazu; Setoguchi, Hiroaki

2011-01-01

219

Ice mass balance buoy measurements from the Canadian Arctic Archipelago - Viscount Melville Sound  

Science.gov (United States)

In recent years, large changes in sea-ice extent have been observed in the Arctic Ocean, particularly in the Beaufort, Chukchi, East Siberian and Laptev seas. The spatial distribution of the sea ice loss are not unlike those simulated by the Community Climate System Model under increased greenhouse gas forcing. The same model (CCSM3) also predicts a future sea ice cover that is seasonally ice free in the next few decades with thicker sea ice only present directly to the North of the Canadian Arctic Archipelago and Greenland. This is the source region for multi-year ice feeding the north-western Canadian Arctic Archipelago (CAA - Viscount Melville Sound and M'Clintock Channel) via Byam Martin Channel. In order to study the fate of multi-year sea ice advected in this region, an Ice Mass Balance Buoy (IMB) was deployed on a multi-year ice floe (several meters thick) south of Byam Channel in the western Viscount Melville Sound. The deployment took place in May 2009 and the IMB observations comprises the whole summer 2009 melt season. In this work, we present the first data from this region, including sea ice drift, thickness and internal temperature temporal evolution during the summer 2009 melt season.

Tremblay, B.; Huard, D. B.; Dansereau, V.

2009-12-01

220

Mesozooplankton distribution in the Spermonde Archipelago (Indonesia, Sulawesi) with special reference to the Calanoida (Copepoda)  

Science.gov (United States)

In September 2005 the mesozooplankton distribution, taxonomic composition and community structure were studied on four cross-shelf and one coastal transects in the Spermonde Archipelago off Makassar (SW Sulawesi). A total of 47 higher taxonomic groups and 89 calanoid copepod species were identified. Copepods outnumbered the other mesozooplankton taxa with 29 to 69%, increasing in importance towards the offshore stations. Appendicularians ranked second (16-24%) followed at the offshore stations by chaetognaths (4.5%) and, at shelf and coastal stations by echinoderm pluteus larvae (11-15%). Within the calanoids, species of the family Paracalanidae, especially Paracalanus cf. parvus, were dominant at all stations. Other abundant families were Temoridae (6.5-17%), Acartiidae (7.2%) and Pontellidae (6.2%) at shelf and coastal stations while Clausocalanidae (8.7%) and Calanidae (6.7) were more abundant at offshore stations. To investigate the mesozooplankton distribution the 25 stations were grouped into 3 geographical zones based on their topographical and hydrographical differences (coastal, shelf and offshore zone). Some higher zooplankton taxa and about half of the calanoid species occurred only in one or two categories. In general the abundant taxa were spread throughout the Archipelago. To investigate their distribution the abundance data were subjected to a multivariate discriminant function analysis (MDFA). The results revealed that the composition of the mesozooplankton community changed from the coastal zone with a high abundance of meroplankton and neritic copepod species to an offshore community with a higher abundance of holoplanktonic organisms and oceanic copepod species.

Cornils, Astrid; Schulz, Jan; Schmitt, Petra; Lanuru, Mahatma; Richter, Claudio; Schnack-Schiel, Sigrid B.

2010-12-01

 
 
 
 
221

Hybridization occurs between Drosophila simulans and D. sechellia in the Seychelles archipelago.  

Science.gov (United States)

Drosophila simulans and D. sechellia are sister species that serve as a model to study the evolution of reproductive isolation. While D. simulans is a human commensal that has spread all over the world, D. sechellia is restricted to the Seychelles archipelago and is found to breed exclusively on the toxic fruit of Morinda citrifolia. We surveyed the relative frequency of males from these two species in a variety of substrates found on five islands of the Seychelles archipelago. We sampled different fruits and found that putative D. simulans can be found in a variety of substrates, including, surprisingly, M. citrifolia. Putative D. sechellia was found preferentially on M. citrifolia fruits, but a small proportion was found in other substrates. Our survey also shows the existence of putative hybrid males in areas where D. simulans is present in Seychelles. The results from this field survey support the hypothesis of current interbreeding between these species in the central islands of Seychelles and open the possibility for fine measurements of admixture between these two Drosophila species to be made. PMID:24773151

Matute, D R; Ayroles, J F

2014-06-01

222

A multiproxy reconstruction of NAO evolution in the Azores archipelago since 1350 AD  

Science.gov (United States)

The North Atlantic Oscillation (NAO) is the main atmospheric circulation pattern affecting climate variability in the Northern Hemisphere, having a major impact on both marine and terrestrial ecosystems. Instrumental records of the NAO are relatively short, and therefore paleoenvironmental multiproxy approaches become fundamental to better understand its behaviour for longer scale periods. The NAO is often defined as a large-scale meridional oscillation dipole of air pressure between the Azores High and the Iceland Low. Some of the NAO definitions include the use of sea level pressure from Ponta Delgada station in Azores, and thus any NAO reconstruction would gain in robustness if it includes paleoenvironmental information from this archipelago located at the southern end of the meridional dipole that characterizes the NAO pattern. However, to the best of our knowledge, very few historical and long-term reconstructions have been conducted in the Azores Islands. We present a ca. 600-year-long multiproxy reconstruction of the NAO evolution based on facies analysis, X-ray diffraction (XRD), X-ray fluorescence (XRF) core scanning, elemental and isotope geochemistry on bulk organic matter and the preliminary study of diatom and chironomid content from the sedimentary record of Lake Empadadas (37° 49' N - 25° 44' W, Azores Archipelago, Portugal). The precipitation regime in Azores Archipelago (i.e. intra and inter-annual variability) is clearly influenced by the NAO index, thus periods with dominant positive NAO index values (NAO+) are usually characterized by low winter precipitation in the Azores. Conversely, negative NAO phases (NAO-) induce high winter precipitation in the archipelago. These patterns suggest that past (winter) precipitation changes on the Azores may be partially used as a proxy for NAO changes, and thus a proxy for more large-scale changes in the North Atlantic region. According to this multiproxy characterization of the Lake Empadadas sediments four main climatic (and NAO) stages since 600 cal years BP have been established. The first stage (1350-1460 AD) correspond to dark-brown to black mud facies with high values in lake productivity and moderately shallow waters, which however represent the deepest condition during the studied interval. Mineralogical composition and high organic matter content also suggest a humid climate with abundant precipitations that might be related to a predominantly NAO- phase. The second stage, spanning between 1460 and 1800 AD, is represented by a similar facies presented by the previous phase. This stage is however characterized by a transitional period from a wet to more arid climate, probably related to a change in NAO conditions (from NAO- to NAO+), with lower values of lake productivity and lake level than the previous stage. From 1800 AD until 1930 AD (third stage) banded brown to pale-brown silty and muddy facies were deposited. During this stage the lowest lake water table and productivity in the whole sequence were reached suggesting a predominantly NAO+ phase in concordance with instrumental NAO records. However, heavy rainfall catastrophic events are recorded in the sequence as very coarse (gravely) alluvial intervals that may be related with intense NAO- negative winters or alternatively to autumn Tropical Storms that can reach the archipelago. Finally, the uppermost interval of the sequence is composed by brown to ochre massive mud. A lake level rise and a progressive increase in the productivity suggest a relatively humid fourth stage from AD 1930 until present, a period characterized with more NAO- values.

Hernández, Armand; Doolittle, Sara; Bao, Roberto; Trigo, Ricardo M.; Rubio-Inglés, Maria J.; Sánchez-López, Guiomar; Vázquez-Loureiro, David; Gonçalves, Vitor; Raposeiro, Pedro M.; Marques, Helena S.; Sáez, Alberto; Giralt, Santiago

2014-05-01

223

Lipid sorting revealed by SANS  

International Nuclear Information System (INIS)

We have investigated the lipid sorting in a binary small unilamellar vesicle (SUV) composed of cone-shaped (1,2-dihexanoyl-sn-glycero-3-phosphocholine: DHPC) and cylinder-shaped (1,2-dipalmitoyl-sn-glycero-3-phosphocholine: DPPC) lipids. In order to reveal the lipid sorting we adopted a contrast matching technique of small angle neutron scattering (SANS), which extracts the distribution of deuterated lipids in the bilayer quantitatively. The SANS profile of deuterated SUVs at the contrast matching condition showed a characteristic scattering profile, indicating an asymmetric distribution of cone-shaped lipids in the bilayer. The fitting of the observed SANS profile revealed that most DHPC molecules are localized in the outer leaflet, which supports that the shape of the lipid is strongly coupled with the membrane curvature. We compared the obtained asymmetric distribution of the cone-shaped lipids in the bilayer with the theoretical prediction based on the curvature energy model. (author)

2013-02-01

224

San Language Development for Education in South Africa: The South African San Institute and the San Language Committees  

Science.gov (United States)

This article focuses on the 3 San communities in South Africa: the !Xun, the Khwe, and the [image omitted]Khomani San. The !Xun and Khwe communities are living in Platfontein, near Kimberley in the Northern Cape. The [image omitted]Khomani San community is living in Upington and in the southern Kalahari, which are also in the Northern Cape. This…

Pamo, Billies

2011-01-01

225

75 FR 39166 - Safety Zone; San Francisco Giants Baseball Game Promotion, San Francisco, CA  

Science.gov (United States)

...USCG-2010-0547] RIN 1625-AA00 Safety Zone; San Francisco Giants Baseball Game Promotion, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION...navigable waters of McCovey Cove in San Francisco Bay off San Francisco, CA in support...

2010-07-08

226

Spatial Econometric Model for Economics Development in Archipelago of Riau, as a Defense System Development in Republic of Indonesia  

Directory of Open Access Journals (Sweden)

Full Text Available Province of Archipelago of Riau is a region in Indonesia which is adjacent to Singapore and Malaysia. This province has a great potential conditions diversity and natural resources. Planning on public prosperity improvement is necessary in order to increase loyalty and nationalism to Republic of Indonesia. The aim of this research is to build a spatial econometric model of economic growth in Province of Archipelago of Riau. One of the results shows that in recent 4 years Batam always gives the largest contribution to GRDP in Province of Archipelago of Riau. This can be understood that the contribution is more than 72.0% not only based on GRDP at current prices, but also based on GRDP at constant prices. Economic growth rate in regions in Province of Archipelago of Riau is higher than national economic growth rate. The model fits well because the coefficient of determination R2 is more than 85%. There are only 3 worse models, i.e. based on building construction in Batam (with R2= 59.6%, in Tanjungpinang (with R2=74.0%, and based on transportation and communication in Tanjungpinang (with R2=37.1%.

Susanti Linuwih

2010-08-01

227

Blood antioxidant parameters and cardiovascular risk factors in subjects from the city of Ponta Delgada (Azores' Archipelago, Portugal)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The purpose of this work was to evaluate serum selenium, copper and zinc concentrations, as well as the whole blood glutathione peroxidase and erythrocyte superoxide dismutase activities in subjects from the city of Ponta Delgada (S. Miguel Island, Azores’ Archipelago). The study of their relationship with generally accepted cardiovascular risk factors was also an objective. […].

Pava?o, Maria Leonor; Figueiredo, Teresa; Santos, Vi?ctor; Lopes, Paula Alexandra; Ferin, Rita; Santos, Maria Cristina; Vicente, Lui?s; Viegas-crespo, Ana Maria; Ne?ve, Jean

2001-01-01

228

Latrin och Matavfall iKretslopp i Stockhoms Skaefgaerd (Recirculation of Latrine and Food Waste in Stockholm Archipelago).  

Science.gov (United States)

YMCA-YWCA hire Angsholmen, an island in the archipelago of Stockholm, for different kind of youth camps in a wonderful environment. The treatment latrine waste of today poses a large economic and nutrient recycling problem. Latrine is collected in buckets...

A. Bjoerklund

2002-01-01

229

Marine plankton of the Bijagós Archipelago (Guinea-Bissau, West Africa) and its relationship with fish eggs and larvae  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Results of the joint Guinean-Bissau (CIPA)/Portuguese (UCTRA) marine sciences survey in the Bijagós Archipelago (Guinea-Bissau, West Africa) carried out in May-June 1995 are presented here. Water surface temperature and salinity were measured in 15 stations with T-probe and refactometer.

Esteves, E.; Gomes, T. M.; Ani?bal, J.; Teixeira, T.; Jardim, Jose? Ernesto; Chi?charo, Lui?s; Ferreira, L.

1998-01-01

230

New record of Novocrania (Brachiopoda, Craniida) from Madeira, with notes on Recent brachiopod occurrences in the Macaronesian archipelagos  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The inarticulated brachiopod Novocrania anomala (Müller) is recorded for the first time from Madeira Island, bringing the total of living species for that area to six. Updated comparisons of Recent brachiopod diversities between the Macaronesian archipelagos show similar values for Madeira, the Cape Verde Islands and the Azores but higher values for the

Logan, Alan; Wirtz, Peter; Swinnen, Frank

2007-01-01

231

San Pascual (2011) Año XLIX, n. 360  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Editorial. Jornada mundial de la juventud, visita de su santidad Benedicto XVI a Madrid. Venerable Fray Diego Baylón, del sepulcro. Efemérides pascualinas, 28 de julio de 1775.Otras efemérides. Cosas de San Pascual, San Pascual y el niño. El monasterio de la Inmaculada y San Pascual de Madrid. La adoración nocturna española, crónica de la fiesta en el 125 aniversario de su fundación. Vida en el santuario. Colaboraciones, San Pascual un pastor ejemplar. Rincón poético, las lágrimas ...

2011-01-01

232

A Spanish Borderlands Community: San Antonio.  

Science.gov (United States)

Discusses the founding of San Antonio, originally San Antonio de Bexar, which, in 1718, came into being as a military settlement involved in Spanish imperial defensive measures. Focuses on the development and continued growth of San Antonio, Texas's most populous city in the 19th century. (CMK)

Teja, Jesus F. de la

2000-01-01

233

Characteristics of nitrogen mineralization rates and controlling factors in forest soils in Japanese archipelago  

Science.gov (United States)

1. Introduction The nitrogen (N) dynamics in forest soils in the Japanese archipelago varies widely because it extends for 3000 km and the climatic zone ranges from cool-temperate to subtropical region. Therefore, it is necessary to understand the soil N transformation characteristics and its controlling factors across a wide area because the changes in N dynamics due to the climate change are expected to differ from region to region. In this study, we selected more than 30 sites from across the Japanese archipelago and measured net rates of soil N mineralization and nitrification. Also, we measured the physical, chemical and biological properties of soil to clarify the controlling factors. 2. Materials and methods We established an experimental plot (20 * 20 m) at each site, and at each plot, five soil sampling locations were established. At each sampling location, mineral soil samples were collected from 0-10, 10-30, 30-50 cm in depth. Net and gross N mineralization and nitrification rate, soil pH(H2O), water soluble cation (Ca2+, Mg2+, K+, Na+, NH4+, Al3+), anion (Cl-, NO3-, SO42-), and organic carbon (WSOC) were measured. From the net N mineralization and nitrification rate measured by laboratory incubation at three different temperatures (15, 20, 25 °C), Q10min, Q10nit (Q10 of N mineralization and nitrification) and average net rate at 20 °C (N20min and N20nit) were calculated. 3. Results and discussion In most of the sites, net N mineralization and nitrification rates were higher in the shallower soil layers. N20min and N20nit ranged 0.01-3.23 and 0.00-3.00 mgN/kg/d, respectively and Q10min and Q10nit ranged 1.09-24.16 and 1.38-20.10 respectively. There was a pattern that low rates soil (N20 Hokkaido Island and Tohoku region) in Japan. This suggests that soil type distribution in the archipelago and soil CN contents are related to the N mineralization and nitrification rates.

Urakawa, R.; Ohte, N.; Shibata, H.; Isobe, K.; Oda, T.; Watanabe, T.; Fukuzawa, K.; Ugawa, S.; Hishi, T.; Enoki, T.; Tateno, R.; Fukushima, K.; Nakanishi, A.; Saigusa, N.; Yamao, Y.; Oyanagi, N.; Hattori, D.; Nakata, M.; Kenta, T.; Toda, H.; Inagaki, Y.; Hirai, K.

2013-12-01

234

Seeking Justice in San Francisco  

Science.gov (United States)

This article discusses the life of Carlos A. Garcia, superintendent at the San Francisco Unified School District. Garcia was born in Chicago, but his parents shortly thereafter moved back to their homeland of Mexico for a few years. When Garcia was almost 5, his family moved to Los Angeles, where his parents worked in factories and Garcia was…

Pascopella, Angela

2010-01-01

235

Changes in driftwood delivery to the Canadian Arctic Archipelago: The hypothesis of postglacial oscillations of the transpolar drift  

Science.gov (United States)

Driftwood appears to be absent in the Beaufort Gyre but abundant in parts of the Transpolar Drift (TPD), which crosses the Arctic Ocean from the Chukchi Sea to the vicinity of northeastern Greenland. Nearly 300 radiocarbon dates on Holocene driftwood from the Canadian Arctic Archipelago reveal two regions with contrasting histories of driftwood incursion: the region accessible to wood brought into Baffin Bay by the West Greenland Current and the rest of the archipelago, which receives wood from the Arctic Ocean. We hypothesize that when the TPD was deflected westward along northern Greenland, wood was delivered widely to the Canadian Arctic Archipelago; when the TPD exited entirely through Fram Strait via the East Greenland Current, little or no wood was delivered to most of the archipelago, but some continued into Baffin Bay via the West Greenland Current. A split TPD delivered wood to both regions. The regional driftwood incursion histories exhibit multiple maxima and minima that can be explained by this hypothesis. The Larix to Picea ratio of wood arriving in the Canadian Arctic Archipelago has also changed through time. This may indicate varying contributions from Russian versus North American sources, which in turn may indicate variable mixing of wood en route. The inferred discharge paths of the TPD were apparently stable for intervals ranging from several millennia to centuries or perhaps only decades. The last major switch broadly correlates with the onset of Neoglaciation. Variations in the path and strength of the TPD may have important oceanographic and climatic consequences downstream in the North Atlantic Ocean.

Dyke, A. S.; England, J.; Reimnitz, E.; Jette, H.

1997-01-01

236

ASTER Flyby of San Francisco  

Science.gov (United States)

The Advanced Spaceborne Thermal Emission and Reflection radiometer, ASTER, is an international project: the instrument was supplied by Japan's Ministry of International Trade and Industry. A joint US/Japan science team developed algorithms for science data products, and is validating instrument performance. With its 14 spectral bands, extremely high spatial resolution, and 15 meter along-track stereo capability, ASTER is the zoom lens of the Terra satellite. The primary mission goals are to characterize the Earth's surface; and to monitor dynamic events and processes that influence habitability at human scales. ASTER's monitoring and mapping capabilities are illustrated by this series of images of the San Francisco area. The visible and near infrared image reveals suspended sediment in the bays, vegetation health, and details of the urban environment. Flying over San Francisco (3.2MB) (high-res (18.3MB)), we see the downtown, and shadows of the large buildings. Past the Golden Gate Bridge and Alcatraz Island, we cross San Pablo Bay and enter Suisun Bay. Turning south, we fly over the Berkeley and Oakland Hills. Large salt evaporation ponds come into view at the south end of San Francisco Bay. We turn northward, and approach San Francisco Airport. Rather than landing and ending our flight, we see this is as only the beginning of a 6 year mission to better understand the habitability of the world on which we live. For more information: ASTER images through Visible Earth ASTER Web Site Image courtesy of MITI, ERSDAC, JAROS, and the U.S./Japan ASTER Science Team

2002-01-01

237

40Ar /39Ar geochronology of flood basalts from the Kerguelen Archipelago, southern Indian Ocean: implications for Cenozoic eruption rates of the Kerguelen plume  

Science.gov (United States)

The 6500 km 2 Kerguelen Archipelago formed on the northern Kerguelen Plateau (NKP) (4×10 5 km 2) which is a shallow submarine plateau belonging to the Kerguelen large igneous province in the southern Indian Ocean. Flood basalts make up 85% of the archipelago and are interpreted as the most recent volcanism (NKP, which underlies the archipelago, formed during the Cenozoic, then, the crustal production rate of the plume from 40 Ma to the present (˜0.25 km 3/yr) would be similar to the crustal production rate (0.23 km 3/my) previously estimated for the formation of the Ninetyeast Ridge (˜82-38 Ma).

Nicolaysen, K.; Frey, F. A.; Hodges, K. V.; Weis, D.; Giret, A.

2000-01-01

238

Potential speciation of morphotypes in the photosymbiotic ascidian Didemnum molle in the Ryukyu Archipelago, Japan  

Science.gov (United States)

Four morphotypes are recognized in the photosymbiotic ascidian Didemnum molle in the Ryukyu Archipelago: three color morphs (white, dark gray, and brown) of small-type colonies and one large-type colony (white with gray patches). The genetic variation among these four morphotypes was investigated by constructing phylogenetic trees based on a 401-bp fragment of the cytochrome oxidase subunit I (COI) gene of 29 specimens collected from five islands (Okinawajima, Sesokojima, Ikeijima, Kumejima, and Ishigakijima). The results support the monophyly of the genus Didemnum and that of the four morphotypes of D. molle. Moreover, the phylogenetic trees discriminated four clades corresponding to each morphotype. The geographic differences of the sequences were much smaller than the differences among the morphotypes, suggesting that the four morphotypes in D. molle are discrete sibling species.

Hirose, M.; Yokobori, S.; Hirose, E.

2009-03-01

239

Evaluation of the solar photovoltaic energy potential in six climatic areas of the Madeira Archipelago (Portugal)  

Energy Technology Data Exchange (ETDEWEB)

This paper deals with the estimation of solar photovoltaic energy potential in six defined climatic areas of the Madeira Archipelago. The areas are climatologically represented by the variables recorded in six meteorological stations (Areeiro, Funchal, Lugar de Baixo, Ponta do Pargo, Sao Jorge, and Porto Santo). Variables used for the calculation (solar irradiance and temperature) are taken into account through their daily evolution in the monthly characteristic days defined in a parent paper for the six sites of the stations. In order to make the conclusions of the study as general as possible, PV modules are supposed to be in the horizontal plane. An advantage of this arrangement is that the calculated PV production for square meter of module coincides with the PV production per square meter of horizontal land. The paper ends advising about the best places for the use of solar photovoltaic in the region. (orig.)

Vazquez M; Izquierdo, P. [Vigo Univ., ETSI Industriales (Spain). Solar Energy Lab.; Magro, C.; Sousa, J. [Governo Regional da Madeira, Funchal (Portugal). Lab. Regional de Engenharia Civil

2008-07-01

240

[Intestinal parasite infections in rural students of Chiloé archipelago, X Region, Chile].  

Science.gov (United States)

In order to contribute to the knowledge of intestinal parasite infection a survey was performed in 462 primary school children from eight rural localities sited in two islands of the Chiloe archipelago. Stool samples and perianal scotch tape scrapings for intestinal protozoa and helminths were microscopically examined. The prevalence rates of the main species found were: Ascaris lumbricoides 43.3%, Trichuris trichiura 26.8%, Enterobius vernicularis 20.1%, Entamoeba histolytica 5.6%, Giardia intestinalis 20.6% and Blastocystis hominis 63.2%. Poverty, deficiencies in hygienic practices and poor basic environmental sanitation are the contributing factors in the maintenance of the high prevalence of the intestinal parasitic infections found. A health education program, improvement of basic sanitary conditions and eventual treatment of infected people may contribute to control this undesirable situation. PMID:8110371

Mejías, G

1993-01-01

 
 
 
 
241

Tectonic stability since the last interglacial offsets the Glorieuses Islands from the nearby Comoros archipelago  

Science.gov (United States)

The four fossil terraces of the Glorieuses Islands are described, and new dates are provided to resolve their stratigraphy, depositional setting, and tectonic behavior. Most outcrops consist of a single sedimentary unit that represents the remains of an extensive reef flat dominated by Isopora palifera corals. At Lys Island, this unit is locally overlain by dipping layered beds composed of Halimeda segments, tentatively interpreted as storm overwash. Reliable U/Th dates obtained from corals sampled from the fossil outcrops mostly fall between 127 and 123 kyr, suggesting that these reefs formed exclusively during the first MIS-5e sea-level highstand, when sea level reached +3 m. The mean elevation of these terraces being +4.5 m, an uplift of 0.012 ± 0.002 mm year-1 is inferred. This relative tectonic stability contrasts with the subsidence reported from Mayotte Island, suggesting a different geologic setting for the nearby Comoros and Glorieuses archipelagoes.

Guillaume, M. M. M.; Reyss, J.-L.; Pirazzoli, P. A.; Bruggemann, J. H.

2013-09-01

242

Geothermal availability in Indonesia, volcanic archipelagoes. Kazan renkan no gunto Indonesia no chinetsu  

Energy Technology Data Exchange (ETDEWEB)

This paper introduces activities of major volcanic mountains in Indonesia and the current status of its geothermal development. Vigorous volcanic activities in the Indonesian archipelagoes are exemplified by eruptions of Mt. Tambora in Sumbawa Island, Krakatau volcano, Mt. Merapi, Papandayan volcano in Java Island. Estimated geothermal reserve reaches 895 MW according to explorations in candidate geothermal sites at Kamojang, Darajat, Dieng, Salak, etc. in Java Island. The Kamojang geothermal site has a large number of geysers, boiling mud pots, and sulfur hot springs. Pertamina, a national organization, has built the Rancabam Kamojang geothermal power plant, which is operating with a power output of 140 MW. The paper describes briefly geothermal developments being carried out at the Dieng area in Java Island, and other areas in Slawesi Island, Bali Island, Flores Island, and Sumatra Island. 17 figs.

1993-02-01

243

Tuvalu, Sovereignty and Climate Change: Considering Fenua, the Archipelago and Emigration  

Directory of Open Access Journals (Sweden)

Full Text Available Tuvalu is a Pacific atoll nation-state that has come to stand for predicaments implicating climate change, forced emigration and resettlement, and loss of territory and sovereignty. Legal and policy remedies seek to address such challenges by radically reframing how sovereignty is conceived. Drawing on literary and legal theory, we seek to extend such work in the terms of cultural geography and anthropology by considering how the archipelago and cultural practices known as fenua could be deployed as symbolic and material resources emphasizing mobility and connection, in contrast to normative ideas of sovereignty, whose orientation to territory imperils atoll states. Our fundamental argument is that legal and policy reforms addressing climate change emigration must be enriched by accounting for the emotional geographies that attend the changing real and conceptual borders of sovereignty and by creating alternative spaces of hope and action.

Carol Farbotko

2013-05-01

244

Crustal deformation study in the Canary Archipelago by the analysis of GPS observations  

Science.gov (United States)

The Canary Archipelago is an active volcanic region located in the African plate, at 100 Km of the northwest coast of Africa. The Complutense University of Madrid, Institute of Astronomy and Geodesy (CSIC-UCM) and University of Jaén, established a GPS Network in this region and carried out six observations campaigns from 2002 to 2009. The focus of thiswork is processing and analyzing these observations to study the geodynamic behavior of the stations of this network. The data have been computed with the Bernese GPS Software Version 5.0 obtaining individual solutions of coordinates for each session and campaign, the coordinate velocities of the stations and the time series of baselines formed between them. Results show consistency of station velocities compared to behaviour of areas permanent stations and baselines stability. No deformations could be detected.

Martín, Adriana; Sevilla, Miguel; Zurutuza, Joaquín

2014-06-01

245

Properties of diphenolase from Vanilla planifolia (Andr.) shoot primordia cultured in vitro.  

Science.gov (United States)

Properties of diphenolase (PPO, EC1.10.3.1) from vanilla (Vanilla planifolia Andr.) shoot primordia culture were investigated. Two pH optima of the enzyme extraction at pH 6 and 8 were found. Nevertheless, the enzymes shared the same optimum pH of activity-between pH 3 and 4. Sodium dodecyl sulfate slightly improved diphenolase extraction but caused a 3-fold increase in its specific activity. The extracts of pH 6 and 8.0 revealed three isozyme bands after polyacrylamide gel electrophoresis-two of them were similar in both extracts and two distinct. The enzyme showed high thermal stability-no loss was observed after 120 min at 50 degrees C. Diethyldithiocarbamic acid, ethylenediaminetetracetic acid disodium salt, ethylene glycol bis(beta-aminoethyl ether) N,N,N',N'-tetraacetic acid, L-ascorbic acid, dithiothreitol, glutathione (reduced), and beta-mercaptoethanol were found to be potent inhibitors of the diphenolase studied. The enzyme showed also monophenolase activity. Km and Vmax were calculated with monophenols [p-coumaric acid, 3-(p-hydroxyphenyl)propionic acid, 4-hydroxybenzyl alcohol, 4-hydroxybenzaldehyde, 4-hydroxybenzoic acid] and with diphenols (caffeic acid, hydrocaffeic acid, chlorogenic acid, 4-methylcatechol, protocatechuic aldehyde and acid, and 3,4-dihydroxyphenylalanine). The highest Vmax was found with 4-hydroxybenzyl alcohol and the greatest affinity to protocatechuic acid, respectively-the most abundant monophenol and one of the least abundant o-diphenols in the studied Vanilla tissue. PMID:11453787

Debowska, R; Podstolski, A

2001-07-01

246

Unexpectedly high radioactivity burdens in ice-rafted sediments from the Canadian Arctic Archipelago  

International Nuclear Information System (INIS)

Unexpectedly high specific activities of 137Cs (1800-2000 Bq kg-1 dry weight) have been detected in fine-grained sediments entrained in multi-year sea ice floes grounded in Resolute Bay near the center of the Northwest Passage through the Canadian Arctic Archipelago. These results are remarkable because: (1) the specific activities are about two orders of magnitude higher than average specific activities detected in previous studies of sea ice rafted sediments from the Arctic Ocean (2) two independent observations of these unexpectedly high specific activities were made several years apart (3) the sampling site is on the opposite side of the Arctic basin from potential radioactive sources such as disposal and weapons testing sites of the former Soviet Union and nuclear fuel reprocessing sites in western Europe, and (4) the closest compositional match to known geologic source regions is Banks Island, on the western edge of the Arctic Archipelago, although a smaller number of grains from one of the two samples were mineralogically matched to sediments in the Laptev Sea. Consequently, the sediments are probably not from a single distinct source and were likely mixed during sea ice transport. Coupled with previous observations of higher radionuclide specific activities in some sea ice rafted sediments relative to bottom sediments, these new observations indicate that comparatively high as well as variable radioactive contaminant burdens in ice rafted sediments must be common and geographically independent of proximity to known contaminant sources. The mechanisms that would facilitate these unexpected high radionuclide burdens in sea ice are not known and require additional study, as well as investigations of the implications for the transport and fate of contaminants in Arctic sea ice

2006-07-31

247

Baseline assessment of the reef fish assemblage from Cagarras Archipelago, Rio de Janeiro, southeastern Brazil  

Directory of Open Access Journals (Sweden)

Full Text Available The extensive Brazilian coast comprises diverse reef fish communities. Here, we report a pioneer study on the reef fish community composition of the Cagarras Archipelago. This rocky reef system consists of a small group of coastal islands 5 km south off Ipanema Beach, Rio de Janeiro city, Brazil. A relatively diverse and disturbed fish community (99 species from 39 families was found in this archipelago. Two different visual census techniques were utilized and a large difference was observed in the number of species compared to other Brazilian reef sites. Trophic structure and biogeographical affinities are discussed. The absence of some reef fish species, mainly top predators, suggests severe environmental impact in this area and exhorts the Brazilian authorities to create a marine protected area. Results obtained in this study will serve to future environmental studies in Cagarras.A extensa costa brasileira abriga uma grande diversidade de peixes recifais. Este trabalho é um estudo pioneiro no que diz respeito à composição de espécies de peixes recifais do Arquipélago das Cagarras. Este sistema recifal é formado por um grupo de ilhas costeiras, distantes 5 km ao sul da Praia de Ipanema no estado do Rio de Janeiro, Brasil. Uma comunidade relativamente diversa e impactada, com 99 espécies pertencentes a 39 famílias de peixes recifais, foi encontrada. A utilização de duas técnicas de censo visual mostrou uma grande diferença nos dados obtidos, quando comparados a outras regiões recifais brasileiras. São discutidos dados da estrutura trófica e a distribuição biogeográfica da ictiofauna da região. A ausência de algumas espécies, principalmente grandes predadores, sugere que a região está sofrendo grande impacto ambiental, e torna urgente a criação de uma área de proteção marinha pelas autoridades Brasileiras. Os resultados obtidos poderão servir como base para futuros estudos ambientais nas Cagarras.

Carlos A. Rangel

2007-03-01

248

Unexpectedly high radioactivity burdens in ice-rafted sediments from the Canadian Arctic Archipelago.  

Science.gov (United States)

Unexpectedly high specific activities of (137)Cs (1800-2000 Bq kg(-1) dry weight) have been detected in fine-grained sediments entrained in multi-year sea ice floes grounded in Resolute Bay near the center of the Northwest Passage through the Canadian Arctic Archipelago. These results are remarkable because: (1) the specific activities are about two orders of magnitude higher than average specific activities detected in previous studies of sea ice rafted sediments from the Arctic Ocean, (2) two independent observations of these unexpectedly high specific activities were made several years apart, (3) the sampling site is on the opposite side of the Arctic basin from potential radioactive sources such as disposal and weapons testing sites of the former Soviet Union and nuclear fuel reprocessing sites in western Europe, and (4) the closest compositional match to known geologic source regions is Banks Island, on the western edge of the Arctic Archipelago, although a smaller number of grains from one of the two samples were mineralogically matched to sediments in the Laptev Sea. Consequently, the sediments are probably not from a single distinct source and were likely mixed during sea ice transport. Coupled with previous observations of higher radionuclide specific activities in some sea ice rafted sediments relative to bottom sediments, these new observations indicate that comparatively high as well as variable radioactive contaminant burdens in ice rafted sediments must be common and geographically independent of proximity to known contaminant sources. The mechanisms that would facilitate these unexpected high radionuclide burdens in sea ice are not known and require additional study, as well as investigations of the implications for the transport and fate of contaminants in Arctic sea ice. PMID:16197983

Cota, Glenn F; Cooper, Lee W; Darby, Dennis A; Larsen, I L

2006-07-31

249

Unexpectedly high radioactivity burdens in ice-rafted sediments from the Canadian Arctic Archipelago  

Energy Technology Data Exchange (ETDEWEB)

Unexpectedly high specific activities of {sup 137}Cs (1800-2000 Bq kg{sup -1} dry weight) have been detected in fine-grained sediments entrained in multi-year sea ice floes grounded in Resolute Bay near the center of the Northwest Passage through the Canadian Arctic Archipelago. These results are remarkable because: (1) the specific activities are about two orders of magnitude higher than average specific activities detected in previous studies of sea ice rafted sediments from the Arctic Ocean, (2) two independent observations of these unexpectedly high specific activities were made several years apart, (3) the sampling site is on the opposite side of the Arctic basin from potential radioactive sources such as disposal and weapons testing sites of the former Soviet Union and nuclear fuel reprocessing sites in western Europe, and (4) the closest compositional match to known geologic source regions is Banks Island, on the western edge of the Arctic Archipelago, although a smaller number of grains from one of the two samples were mineralogically matched to sediments in the Laptev Sea. Consequently, the sediments are probably not from a single distinct source and were likely mixed during sea ice transport. Coupled with previous observations of higher radionuclide specific activities in some sea ice rafted sediments relative to bottom sediments, these new observations indicate that comparatively high as well as variable radioactive contaminant burdens in ice rafted sediments must be common and geographically independent of proximity to known contaminant sources. The mechanisms that would facilitate these unexpected high radionuclide burdens in sea ice are not known and require additional study, as well as investigations of the implications for the transport and fate of contaminants in Arctic sea ice. (author)

Cota, Glenn F. [Center for Coastal Physical Oceanography, Department of Ocean, Earth, and Atmospheric Sciences, Old Dominion University, Norfolk, VA 23508 (United States); Cooper, Lee W. [Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996 (United States); Darby, Dennis A. [Department of Ocean, Earth, and Atmospheric Sciences, Old Dominion University, Norfolk, VA 23529 (United States); Larsen, I.L. [Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States)

2006-07-31

250

Looking inside the Panarea Island (Aeolian Archipelago, Italy by gravity and magnetic data  

Directory of Open Access Journals (Sweden)

Full Text Available In this paper we show and discuss the results of gravity and magnetic surveys of Panarea Island and its archipelago. The most recent volcanic manifestation occurred in November 2002 with a shallow submarine gas eruption between the islets of Dattilo, Panarelli, Lisca Bianca, Bottaro and Lisca Nera. Currently, the activity of Panarea is monitored through a multidisciplinary study under the umbrella of the Italian Department of Civil Protection with the goal of defining the hazard of this area. With this aim, in May 2006 the first gravity and magnetic surveys of Panarea Island and its archipelago were performed. The offshore magnetic data were obtained using a marine magnetometer, a Geometrics G880, from the Istituto Idrografico dell Marina (IIM. Onshore and offshore magnetic data were integrated into an unique dataset for complete magnetic coverage of the study area. By using two micro-gravimeters (LaCoste & Romberg, gravity data were collected along tracks every 250 meters. The gravity dataset was processed using the standard method. A Bouguer reduction was applied to the free-air gravity dataset using a detailed digital elevation model of the island and the neighbouring sea after evaluation of the optimal Bouguer density to reduce the topographic effect. The result is a Bouguer anomaly map that shows lateral variations in density distribution and the relationships between the shallow volcanic/crustal features and tectonic lineaments. This evidence is also highlighted by the magnetic pattern, which suggests the importance of the youngest volcanic deposits with respect to the magnetic features of the island.

F. Greco

2008-06-01

251

Distribution and estimated release of sediment phosphorus in the northern Baltic Sea archipelagos  

Science.gov (United States)

Phosphorus contents in the sediments were determined in archipelago areas of the northern Baltic Sea (Svealand in Sweden and Åland, SW Finland and W Uusimaa in Finland) during 2008-2012. Spatial and vertical distribution of phosphorus was studied by analysing sediment samples from 345 stations of different seabed substrate types. A sequential extraction method was applied to evaluate the pool of the potentially mobile phosphorus, i.e., the amount of phosphorus that can be expected to be released from sediments to water with time, and possibly support primary production. In addition, vertical distribution of immobile phosphorus forms in the sediments was used as a tool to assess phosphorus burial. The uppermost 2 cm of sediments were calculated to contain 126,000 tonnes of phosphorus in the study area covering 19,200 km2 of the seafloor. Subtracting the assumed average background content (i.e. that assumed to be buried) of this total phosphorus content gave an estimation of 31,000-37,000 tonnes of potentially mobile phosphorus at the sediment surface. Redox sensitive iron-bound phosphorus accounts for two thirds of this pool. Compared with the total phosphorus input from the catchment of the entire Baltic Sea - 29,000 tonnes in 2009 - it can be concluded that the store of phosphorus that can be released with time from the sediments is large, and that internal phosphorus recycling processes thus may play a key role in phosphorus fluxes in the coastal zone. Spreading of hypoxia in the future, as recent modelling and sediment proxy results suggest, is likely to severely deteriorate the water quality, particularly in the archipelago areas where the water exchange is slow.

Puttonen, Irma; Mattila, Johanna; Jonsson, Per; Karlsson, O. Magnus; Kohonen, Tuula; Kotilainen, Aarno; Lukkari, Kaarina; Malmaeus, J. Mikael; Rydin, Emil

2014-05-01

252

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

International Nuclear Information System (INIS)

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO2) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents

2001-01-01

253

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

International Nuclear Information System (INIS)

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO_2) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents

2000-01-01

254

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

Energy Technology Data Exchange (ETDEWEB)

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

T. Scott Hickman; James J. Justice

2001-06-16

255

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

Energy Technology Data Exchange (ETDEWEB)

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

T. Scott Hickman

2003-01-17

256

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

Energy Technology Data Exchange (ETDEWEB)

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

T. Scott Hickman; James J. Justice

2001-12-11

257

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

International Nuclear Information System (INIS)

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO2) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents

2000-01-01

258

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

Energy Technology Data Exchange (ETDEWEB)

The OXY-operated Class 2 Project at West Welch is designed to demonstrate how the use of advanced technology can improve the economics of miscible CO{sub 2} injection projects in lower quality Shallow Shelf Carbonate reservoirs. The research and design phase (Budget Period 1) primarily involved advanced reservoir characterization. The current demonstration phase (Budget Period 2) is the implementation of the reservoir management plan for an optimum miscible CO{sub 2} flood design based on the reservoir characterization. Although Budget Period 1 for the Project officially ended 12/31/96, reservoir characterization and simulation work continued during the Budget Period 2. During the fifth and sixth annual reporting periods (8/3/98-8/2/00) covered by this report, work continued on interpretation of the cross well seismic data to create porosity and permeability profiles which were distributed into the reservoir geostatistically. The initial interwell seismic CO{sub 2} monitor survey was conducted, the acquired data processed and interpretation started. Only limited well work and facility construction was conducted in the project area. The CO{sub 2} injection initiated in October 1997 was continued, although the operator had to modify the operating plan in response to low injection rates, well performance and changes in CO{sub 2} supply. CO{sub 2} injection was focused in a smaller area to increase the reservoir processing rate. By the end of the reporting period three producers had shown sustained oil rate increases and ten wells had experienced gas (CO{sub 2}) breakthrough.

T. Scott Hickman; James J. Justice

2002-01-09

259

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

Energy Technology Data Exchange (ETDEWEB)

The OXY-operated Class 2 Project at West Welch is designed to demonstrate how the use of advanced technology can improve the economics of miscible CO{sub 2} injection projects in lower quality Shallow Shelf Carbonate reservoirs. The research and design phase (Budget Period 1) primarily involved advanced reservoir characterization. The current demonstration phase (Budget Period 2) is the implementation of the reservoir management plan for an optimum miscible CO{sub 2} flood design based on the reservoir characterization. Although Budget Period 1 for the Project officially ended 12/31/96, reservoir characterization and simulation work continued during the Budget Period 2. During the seventh annual reporting period (8/3/00-8/2/01) covered by this report, work continued on interpretation of the interwell seismic data to create porosity and permeability profiles which were distributed into the reservoir geostatistically. The initial interwell seismic CO{sub 2} monitor survey was conducted and the acquired data processed and interpretation started. Only limited well work and facility construction were conducted in the project area. The CO{sub 2} injection initiated in October 1997 was continued, although the operator had to modify the operating plan in response to low injection rates, well performance and changes in CO{sub 2} supply. CO{sub 2} injection was focused in a smaller area to increase the reservoir processing rate. By the end of the reporting period three producers had shown sustained oil rate increases and six wells had experienced gas (CO{sub 2}) breakthrough.

Tom Beebe

2003-05-05

260

Taxonomy and biogeography of the coastal fishes of Juan Fernández Archipelago and Desventuradas Islands, Chile / Taxonomía y biogeografía de los peces costeros del Archipiélago de Juan Fernández y de las islas Desventuradas, Chile  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: English Abstract in spanish Las islas Desventuradas (San Félix y San Ambrosio) y del Archipiélago de Juan Fernández (Robinson Crusoe y Alejandro Selkirk) son islas oceánicas de origen volcánico ubicadas en el Pacífico Sudeste, frente a Chile. Sobre la base de material recolectado desde 1997 hasta la fecha, revisiones de colecc [...] iones de las expediciones del R/V Anton Bruun y actualizaciones taxonómicas, la fauna de peces litorales del Archipélago de Juan Fernández y las islas Desventuradas tienen un total de 52 especies, con 41 y 43 especies, respectivamente. Los peces costeros endémicos de Juan Fernández son solamente cinco (12,2%) y tres son las especies registradas aquí como nuevas para las islas (Gymnothorax cf. obesus, Gnathophis sp., Suezichthys sp.). Las Desventuradas tienen solamente dos especies endémicas (4,6%) y cuatro son los nuevos registros (Scorpaenodes englerti, Maxillicosta reticulata, Suezichthys sp., Aseraggodes bahamondei). El reducido número de especies endémicas para Juan Fernández comparado con trabajos previos (15 especies) se debe a que muchas resultaron ser endémicas de ambos grupos de islas (22 especies = 42,3% total peces litorales), apoyando la propuesta que ambos grupos de islas debieran formar una sola unidad biogeográfica. La extensión oriental de la región Indo Pacífico Oeste para incluir la cordillera de Nazca, las islas Desventuradas y Juan Fernández encuentra apoyo en este trabajo. La afinidad zoogeográfica entre las Desventuradas y las islas del Pacífico Oeste (Isla de Pascua hasta Australia) incluye 16 especies, agregando cinco nuevos registros a listas anteriores. Filogenias de tres géneros señalan un centro de origen en el Pacífico Oeste, con uno o más eventos de dispersión hacia las islas Desventuradas y Juan Fernández. Este patrón de dispersión puede repetirse en otros siete géneros de pocas especies y relativamente restringidas en distribución. Solo una filogenia (Odontesthes) propone un origen continental con una dispersión hacia el Oeste, sin embargo otros tres géneros parecen tener este mismo patrón de dispersión. Abstract in english The Desventuradas Islands (San Félix and San Ambrosio) and Juan Fernández Archipelago (Robinson Crusoe and Alejandro Selkirk) are oceanic islands of volcanic origin located in the southeastern Pacific off Chile. Based on new material collected since 1997, revision of the R/V Anton Bruun expeditions [...] collections, and a taxonomic update, the coastal fish fauna of Juan Fernández Archipelago and Desventuradas Islands found a total of 52 species, with 41 and 43 species, respectively. The number of coastal fish species recorded herein as endemic for Juan Fernández is only five (12,2%) and three species are new records (Gymnothorax cf. obesus, Gnathophis sp., Suezichthys sp). The Desventuradas Islands have only two endemic species (4,6%) and four species are new records (Scorpaenodes englerti, Maxillicosta reticulata, Suezichthys sp., Aseraggodes bahamondei). The reduced number of endemic species for the Juan Fernández Islands as compared with previous accounts (15 species) is the result that more species were found to be endemic to both islands groups (22 species = 42,3% all coastal fishes), suggesting these two island groups should be considered a single biogeographic unit. The eastern extension of the Indo West Pacific Region to include the Nazca Ridge, Desventuradas and Juan Fernández Islands is supported herein. The zoogeographical affinities between Desventuradas and western Pacific Islands (Easter Island to Australia), includes 16 species, adding five new species to previous lists. Relationships of three genera indicate a Western Pacific origin with one or more dispersal events to the Desventuradas and Juan Fernández Islands. Another seven genera, with relatively few species and restricted distribution, may have this same pattern. Only one phylogenetic study indicates a continental origin with a westward dispersal (Odontesthes), however another thr

Brian S, Dyer; Mark W, Westneat.

 
 
 
 
261

Sintered materials studied by SANS  

International Nuclear Information System (INIS)

Complete text of publication follows. The small angle scattering of compacted and sintered single phase materials with open or closed porosity can be described by the two phase model. During sintering, the decrease of pore volume is accompanied with decreasing internal surface measured by SANS [1]. Such investigation can be extended to the field of technically relevant multiphase materials as well, e.g. doped tunsten, SiN ceramics and WC-Co composite made from nano-crystalline powder. The deformation of remaining porosity after sintering can be monitored by 2D anisotropy of SANS distribution as the sintered body is processed through several steps of thermomechanical treatment. The elongation of pores or stable bubbles, e.g. K gas filled bubbles in doped W [2], follows the macroscopic deformation of the body. Heat treatment, however, causes spheroidization with vanishing SANS anisotropy. Our investigation using the isointensity contour map method allows establishing a new description of mechanisms of thermomechanical processing. (author) [1] O. Blaschko, R. Glas, G. Krexner and P. Weinzierl, Physical Review Letters 68 970-973 (1992); [2] O. Horacsek, M. Menyhard and J. Labar, High Temperature Materials and Processes 14 207-213 (1995)

1999-01-01

262

The radiation sterilization of the Paeonia Suffruticosa Andr. skin by 60Co-? rays and the influence of radiation on its pharmacological activity  

International Nuclear Information System (INIS)

The effect of radiation sterilization on the Paeonia Suffruticosa Andr.skin was investigated and the influence of radiation on the main components and their pharmacological activity was discussed.Radiation doses up to 10 kGy have no noticeable influence on the main components of the Paeonia suffruticosa Andr.skin, but the thin layer chromatography showed that the sample two days after irradiation lost a speck at position Rf = 0.7 in the graph in comparison with the control sample. Stored the sample for one month, however, the speck reappeared in the graph, Radiation at dose of 10 kGy has no obvious influence on the acute toxicity and the pharmacological activity of the Paeonia suffruticosa Andr.skin

1992-08-01

263

Localization in one-dimensional lattices with non-nearest-neighbor hopping: Generalized Anderson and Aubry-Andre models  

International Nuclear Information System (INIS)

We study the quantum localization phenomena of noninteracting particles in one-dimensional lattices based on tight-binding models with various forms of hopping terms beyond the nearest neighbor, which are generalizations of the famous Aubry-Andre and noninteracting Anderson models. For the case with deterministic disordered potential induced by a secondary incommensurate lattice (i.e., the Aubry-Andre model), we identify a class of self-dual models, for which the boundary between localized and extended eigenstates are determined analytically by employing a generalized Aubry-Andre transformation. We also numerically investigate the localization properties of nondual models with next-nearest-neighbor hopping, Gaussian, and power-law decay hopping terms. We find that even for these nondual models, the numerically obtained mobility edges can be well approximated by the analytically obtained condition for localization transition in the self-dual models, as long as the decay of the hopping rate with respect to distance is sufficiently fast. For the disordered potential with genuinely random character, we examine scenarios with next-nearest-neighbor hopping, exponential, Gaussian, and power-law decay hopping terms numerically. We find that the higher-order hopping terms can remove the symmetry in the localization length about the energy band center compared to the Anderson model. Furthermore, our results demonstrate that for the power-law decay case, there exists a critical exponent below which mobility edges can be found. Our theoretical results could, in principle, be directly tested in shallow atomic optical lattice systems enabling non-nearest-neighbor hopping.

2011-02-15

264

Kas hirmul külma sõja ees on alust? / George Soros, Martti Ahtisaari, Toomas Hendrik Ilves...[jt.] ; interv. Andres Kasekamp  

Index Scriptorium Estoniae

6. novembril 2008 Tallinnas toimunud XIII Avatud Ühiskonna Foorumil alapealkirjaga "Euroopa Liit ja Venemaa: mida toob tulevik?" arutlesid president Toomas Hendrik Ilves, Euroopa Välissuhete Nõukogu aseesimees Martti Ahtisaari, Euroopa Välissuhete Nõukogu liige, Avatud Ühiskonna Instituudi nõukogu esimees George Soros, Euroopa Välissuhete Nõukogu liige, politoloogiaprofessor Aleksander Smolar ja Rahvusvahelise Kaitseuuringute Keskuse juhataja Kadri Liik suhete üle Venemaaga. Vestlust juhtis Andres Kasekamp. President T. H. Ilves rääkis paradigma muutusest Euroopa Liidu ja Venemaa suhetes pärast Venemaa agressiooni Gruusia vastu, ühiselt jagatud väärtustel põhineva julgeolekuorganisatsiooni tähtsusest, autoritaarse ja demokraatliku kapitalismi vastuolust

2008-01-01

265

The Geochemistry of Pinta, Marchena, and Genovesa Islands and the Surrounding Seafloor in the Galápagos Archipelago  

Science.gov (United States)

The central Galápagos Archipelago differs from many other ocean island chains in that it is underlain by a 500 x 200 km platform. An appendage of the platform extends ~50 km NW toward the GSC and includes Pinta, Marchena, and Genovesa Islands, despite the easterly motion of the Nazca Plate. The flanks of these islands were surveyed by EM122 and MR1 sidescan sonar and dredged at 7 locations during the 2010 R/V Melville MV1007 cruise. The volcanoes that make up the islands are close enough that they nearly coalesce. They have elongate bathymetric footprints, with a submarine ridge that extends ~30 km north of Pinta toward the 90°50’W GSC transform fault, between Marchena and Genovesa, and ~45 km to the NE of Genovesa. A strikingly flat-topped shoal, which may be a drowned island, extends ~30 km SE from Marchena. An intriguing aspect of this platform appendage is that most of the isotopic and trace element compositional range of the region is observed. Pinta has the lowest ?Nd value in the Galápagos, lower than the plume component sampled at Fernandina, and lavas from N Pinta Ridge exhibit levels of enrichment similar to Pinta’s lavas. Genovesa volcano, only 150 km to the east, is constituted of lavas that are mostly indistinguishable from MORB and exhibit the most depleted signatures in the archipelago. Marchena, the southern shoal, and submarine lavas from ridges that extend toward Pinta, are built of lavas that have trace element compositions that are mixtures of Pinta and Genovesa compositions. Lavas become progressively depleted from W to E across the appendage. New 3He/4He values range from 6.5 to 9.5 Ra, with the highest value between Genovesa and Marchena. Despite plume-like trace element and Nd isotopic signatures at Pinta, 3He/4He values are lower than typical MORB (6.5-6.7 Ra). One hypothesis is that the mostly degassed plume mixes with greater amounts of upper mantle as it flows east, yielding the observed compositional gradient. Alternatively, a heterogeneous plume with distinct enriched and depleted components moving to the GSC will encounter the lithospheric discontinuity related to the fracture zone that extends toward Pinta from the transform, with younger lithosphere to the east. Mantle material rising beneath Pinta will experience limited melting owing to the thicker lithospheric cap, causing enriched plume components with low 3He/4He to dominate compositions. East of the discontinuity the plume will melt more extensively, producing progressively depleted signatures toward Genovesa. Prior to reaching the northern appendage of the Galápagos Archipelago, the plume undergoes an initial melting phase at the wet solidus near the plume center, losing its volatile components. The degassed material then migrates NE, where increasingly shallow lithosphere causes it to undergo a second decompression melting phase, yielding lavas with plume signatures in the more refractory elements but lacking the characteristic high 3He/4He plume signal.

Schlitzer, W.; Harpp, K. S.; Kurz, M. D.; Geist, D.; Mittelstaedt, E. L.; Fornari, D. J.; R/v Melville Mv1007 Flamingo Cruise Scientific Party

2010-12-01

266

Nutritional status and metabolism of the coral Stylophora subseriata along a eutrophication gradient in Spermonde Archipelago (Indonesia)  

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Coral responses to degrading water quality are highly variable between species and depend on their tro- phic plasticity, acclimatization potential, and stress resis- tance. To assess the nutritional status and metabolism of the common scleractinian coral, Stylophora subseriata, in situ experiments were carried along a eutrophication gra- dient in Spermonde Archipelago, Indonesia. Coral frag- ments were incubated in light and dark chambers to measure photosynthesis, respiration, and calcific...

2011-01-01

267

Sea-ice crossings by caribou in the south-central Canadian Arctic Archipelago and their ecological importance  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The islands of the Canadian Arctic Archipelago lie immediately north of mainland North America in the Arctic Ocean. They are surrounded by ice for most of each year. Caribou (Rangifer tarandus) cross the sea ice in seasonal migrations among the islands and between the mainland and Arctic Islands. We compiled observations of 1272 discrete caribou crossings on the sea ice of northeastern Franklin Strait, Bellot Strait, Peel Sound and Baring Channel in the south-central Canadian Arctic Archipela...

Miller, Frank L.; Barry, Samuel J.; Calvert, Wndy A.

2005-01-01

268

Climate change, non-indigenous species and shipping: assessing the risk of species introduction to a high-Arctic archipelago  

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Aim: Anticipated changes in the global ocean climate will affect the vulnerability of marine ecosystems to the negative effects of non-indigenous species (NIS). In the Arctic, there is a need to better characterize present and future marine biological introduction patterns and processes. We use a vector-based assessment to estimate changes in the vulnerability of a high-Arctic archipelago to marine NIS introduction and establishment. Location: Global, with a case study of Svalbard, Norway. Me...

Ware, Chris; Berge, Jørgen; Sundet, Jan H.; Kirkpatrick, Jamie B.; Coutts, Ashley D. M.; Jelmert, Anders; Olsen, Steffen M.; Floerl, Oliver; Wisz, Mary S.; Alsos, Inger G.

2013-01-01

269

Major natural hazards in a tropical volcanic island: A review for Mayotte Island, Comoros archipelago, Indian Ocean  

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Mayotte is a French Overseas Territory of the Comoros archipelago. Since the 1980, Mayotte has developed quickly: its population has multiplied by four in less than 30 years, infrastructure expanded rapidly in lowlands and slums developed in steep areas (through deforestation) or close to riverbeds. This development urgently required steps to ensure the safety of urban areas. From 2002 to 2006, a major programme of natural hazards evaluation and zonation was conducted by the French Geological...

2010-01-01

270

Temporal patterns of honey bee (Apis mellifera L.) mitochondrial DNA variation in the archipelago of Azores (Portugal)  

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Morphological and molecular studies have been carried out on different Mediterranean and Atlantic island populations of honey bees. A previous genetic survey of the Azorean honey bees, carried out by De la Rúa and colleagues (2006), showed their genetic distinctiveness from continental populations and their close relationship with NW African populations. Herein we present the results of a more comprehensive survey (samples collected from all the islands of the archipelago) of the mitochondri...

Pinto, M. Alice; Mun?oz, Irene; Moura, Ine?s; Souza, Larissa; Baptista, Paula; Pires, Sa?ncia; La Ru?a, Pilar

2010-01-01

271

Long-term changes and coastal eutrophication. Examples from the Aland Islands and the Archipelago Sea, northern Baltic Sea  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The coastal and archipelago waters of the northern Baltic Sea are influenced by increasing eutrophication (significantly increasing temporal trends in nutrient availability). Increased nutrient levels and pelagic primary production have led to decreased transparency in the water body, increased plankton biomass, and increased amounts of filamentous algae. Large-scale and long-term (15-30 years) comparisons have shown that zoobenthic communities have changed significantly (altered species dive...

Bonsdorff, E.; Blomqvist, Em; Mattila, J.; Norkko, A.

1997-01-01

272

Recent extreme light sea ice years in the Canadian Arctic Archipelago: 2011 and 2012 eclipse 1998 and 2007  

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Record low mean September sea ice area in the Canadian Arctic Archipelago (CAA) was observed in 2011 (146 × 103 km2), a level that was nearly exceeded in 2012 (150 × 103 km2). These values eclipsed previous September records set in 1998 (200 × 103 km2) and 2007 (220 × 103 km2) and are ?60% lower than the 1981–2010 mean September climatology. In this study, the driving processes contributin...

Howell, S. E. L.; Wohlleben, T.; Komarov, A.; Pizzolato, L.; Derksen, C.

2013-01-01

273

Genetic variability and efficiency of DNA microsatellite markers for paternity testing in horse breeds from the Brazilian Marajó archipelago  

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In this study, 15 microsatellite DNA loci used in comparative tests by the International Society for Animal Genetics were applied to the evaluation of genetic diversity and management, and the efficiency of paternity testing in Marajoara horses and Puruca ponies from the Marajó Archipelago. Based on the genotyping of 93 animals, mean allelic diversity was estimated as 9.14 and 7.00 for the Marajoara and Puruca breeds, respectively. While these values are similar to those recorded in most Eur...

2008-01-01

274

Absolute palaeointensity of Oligocene (28-30 Ma) lava flows from the Kerguelen Archipelago (southern Indian Ocean).  

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We report palaeointensity estimates obtained from three Oligocene volcanic sections from the Kerguelen Archipelago (Mont des Ruches, Mont des Tempêtes, and Mont Rabouillère). Of 402 available samples, 102 were suitable for a palaeofield strength determination after a preliminary selection, among which 49 provide a reliable estimate. Application of strict a posteriori criteria make us confident about the quality of the 12 new mean-flow determinations, which are the first reliable data availa...

Plenier, Guillaume; Camps, Pierre; Coe, Robert; Perrin, Mireille

2003-01-01

275

Trophic resources of the bivalve, Venus verrucosa, in the Chausey archipelago (Normandy, France) determined by stable isotopes and fatty acids  

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In the Chausey archipelago, growth of the burrowing bivalve Venus verrucosa (Mollusca: Veneridae) has been shown to be highly variable between closely located sites (<1 km). To explain this small-scale spatial variability, we tested the trophic hypothesis using both fatty acid markers, and carbon and nitrogen stable isotopes (delta C-13 and delta N-15). Environmental parameters, including substrate, were also analysed to discriminate their effects on potential trophic differences. Results of ...

Perez, Ve?ronique; Olivier, Fre?de?ric; Tremblay, Rejean; Neumeier, Urs; The?bault, Julien; Chauvaud, Laurent; Me?ziane, Tarik

2013-01-01

276

Automicrites in modern cyanobacterial stromatolitic deposits of Rangiroa, Tuamotu Archipelago, French Polynesia: Biochemical parameters underlaying their formation  

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This paper provides evidence of the role of the proteinaceous constituents of the sedimentary organic matter in the control of (Ca, Mg) carbonate precipitation within recent stromatolitic sediments belonging to the kopara-type (Rangiroa, Tuamotu Archipelago, French Polynesia). Millimeter- to cm-thick alternating carbonate-rich and carbonate-poor layers allow the separation by hand of these two contrasted types of layers (with respect to carbonate content). The study aims, (1) to decipher the ...

Gautret, Pascale; Trichet, Jean

2005-01-01

277

Termites (Isoptera) in the Azores: an overview of the four invasive species currently present in the archipelago  

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In this contribution we summarize the current status of the known termites of the Azores (North Atlantic; 37-40° N, 25-31° W). Since 2000, four species of termites have been identified in the Azorean archipelago. These are spreading throughout the islands and becoming common structural and agricultural pests. Two termites of the Kalotermitidae family, Cryptotermes brevis (Walker) and Kalotermes flavicollis (Fabricius) are found on six and three of the islands, respectively. The other two sp...

Ferreira, Maria T.; Borges, Paulo A. V.; Nunes, Lina; Myles, Timothy G.; Guerreiro, Orlando; Scheffrahn, Rudolf H.

2013-01-01

278

Applying Fishers' Ecological Knowledge to Construct Past and Future Lobster Stocks in the Juan Fernández Archipelago, Chile  

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Over-exploited fisheries are a common feature of the modern world and a range of solutions including area closures (marine reserves; MRs), effort reduction, gear changes, ecosystem-based management, incentives and co-management have been suggested as techniques to rebuild over-fished populations. Historic accounts of lobster (Jasus frontalis) on the Chilean Juan Fernández Archipelago indicate a high abundance at all depths (intertidal to approximately 165 m), but presently lobsters are found...

Eddy, Tyler D.; Gardner, Jonathan P. A.; Pe?rez-matus, Alejandro

2010-01-01

279

77 FR 70891 - Safety Zone; Bay Bridge Construction, San Francisco Bay, San Francisco, CA  

Science.gov (United States)

...1625-AA00 Safety Zone; Bay Bridge Construction, San Francisco Bay, San...CA in support of the Bay Bridge Construction Safety Zone from November...CALTRANS will sponsor the Bay Bridge Construction Safety Zone on November...

2012-11-28

280

San Pascual (2009) Año XLVII, n. 353  

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Editorial. Associació cultural amics museu pouet del Sant. Otra navidad con San Pascual. Siguiendo los caminos de San Pascual. Hermano Rafael Arnaiz Baron. Entrevista: D. José Ortells Llop presidente de caritas interparroquial de vila-real. Milagros de San Pascual (XV). La navidad de mi niñez. Vida en el santuario. Rincón poéticos. La familia franciscana: 800 años al servicio del evangelio y de la Iglesia. La puerta de la libertad. El corazón de un Santo (X). Excursión a torrehermosa ...

2009-01-01

 
 
 
 
281

Integrating paleoecology and genetics of bird populations in two sky island archipelagos  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Genetic tests of paleoecological hypotheses have been rare, partly because recent genetic divergence is difficult to detect and time. According to fossil plant data, continuous woodland in the southwestern USA and northern Mexico became fragmented during the last 10,000 years, as warming caused cool-adapted species to retreat to high elevations. Most genetic studies of resulting 'sky islands' have either failed to detect recent divergence or have found discordant evidence for ancient divergence. We test this paleoecological hypothesis for the region with intraspecific mitochondrial DNA and microsatellite data from sky-island populations of a sedentary bird, the Mexican jay (Aphelocoma ultramarina. We predicted that populations on different sky islands would share common, ancestral alleles that existed during the last glaciation, but that populations on each sky island, owing to their isolation, would contain unique variants of postglacial origin. We also predicted that divergence times estimated from corrected genetic distance and a coalescence model would post-date the last glacial maximum. Results Our results provide multiple independent lines of support for postglacial divergence, with the predicted pattern of shared and unique mitochondrial DNA haplotypes appearing in two independent sky-island archipelagos, and most estimates of divergence time based on corrected genetic distance post-dating the last glacial maximum. Likewise, an isolation model based on multilocus gene coalescence indicated postglacial divergence of five pairs of sky islands. In contrast to their similar recent histories, the two archipelagos had dissimilar historical patterns in that sky islands in Arizona showed evidence for older divergence, suggesting different responses to the last glaciation. Conclusion This study is one of the first to provide explicit support from genetic data for a postglacial divergence scenario predicted by one of the best paleoecological records in the world. Our results demonstrate that sky islands act as generators of genetic diversity at both recent and historical timescales and underscore the importance of thorough sampling and the use of loci with fast mutation rates to studies that test hypotheses concerning recent genetic divergence.

Bowen Bonnie S

2008-06-01

282

Size distribution and genetic diversity of the offshore rockfish (Pontinus kuhlii) from three Atlantic archipelagos and seamounts  

Science.gov (United States)

The offshore rockfish (Pontinus kuhlii) is a widespread demersal fish in the temperate eastern Atlantic. This species inhabits hard bottoms at depths between 100 and 600m and it is an important resource for the Azorean commercial fishing fleet. During several research fishing surveys in the Azores, Madeira and Cape Verde archipelagos diverse biological data on this species were collected. The degree of geographical population differentiation across the three Atlantic archipelagos was examined using two mitochondrial markers, control region (CR) and cytochrome b (cyt b). A total of 44 specimens were sequenced for each marker revealing high haplotypic diversity (CR: Hd=0.9736; cyt b: Hd=0.8520) and low nucleotide diversity (CR: ?=0.0171; cyt b: ?=0.0059). The sample size from the different subareas was limited but sufficient to reveal that no genetic structure was evident (?ST=-0.0465 to -0.0224), suggesting the existence of one panmictic population. Despite very different exploitation rates between archipelagos, the size structure of P. kuhlii was very similar and inter-annual variation was also low. Exploitation rates are probably too low to significantly affect the size structure, even in the Azores where the species is a secondary target of the commercial fishery. In the Azores region this species is more abundant on seamounts, however bigger fishes tend to occur on island slope than on seamounts.

Catarino, Diana; Stefanni, Sergio; Menezes, Gui M.

2013-12-01

283

San Pascual (2009) Año XLVII, n. 352  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Editorial. Fiesta anual de la virgen del Rosario en la basílica. Siguiendo los caminos de San Pascual capítulo XVII. El cura D. Salvador Ramos Vilar y la arciprestal San Jaime de vila-real. Milagros de San Pascual. Entrevista el padre Vicente Mundina: Mi vida, mi gente, mis plantas. Vida en el santuario. Sun Hwa Choi (Teresa). Rincón poético. Peregrinación nacional al sepulcro de San Pascual en 1899 (V). Cristo creación, eucaristía. El corazón de un santo (IX). Visita al museo de la c...

2009-01-01

284

77 FR 37604 - Safety Zone; Fourth of July Fireworks, City of San Francisco, San Francisco, CA  

Science.gov (United States)

...Fourth of July Fireworks, City of San Francisco, San...the safety zone for the City of Sausalito's Fourth...in the Captain of the Port, San Francisco area of...W (NAD83) for the City of Sausalito's Fourth...If the Captain of the Port determines that the...

2012-06-22

285

76 FR 75908 - Notice of Inventory Completion: The University of California, San Diego, San Diego, CA  

Science.gov (United States)

...San Diego's University House site, in San Diego, CA. The site is variously referred to as the Black, William House; SDM-W-12A (as recorded by the San Diego Museum of Man); CA-SDI-4669 (as recorded with the State of California);...

2011-12-05

286

78 FR 35593 - Special Local Regulation; Christmas Boat Parade, San Juan Harbor; San Juan, PR  

Science.gov (United States)

...RIN 1625-AA08 Special Local Regulation; Christmas Boat Parade, San Juan Harbor; San Juan, PR AGENCY: Coast...Harbor in San Juan, Puerto Rico during the Christmas Boat Parade, a Boat Parade. The event is scheduled to take place on...

2013-06-13

287

SANS from interpenetrating polymer networks  

International Nuclear Information System (INIS)

Full text: Interpenetrating polymer networks (IPNs) have been formed by combining two polymeric systems in order to gain enhanced material properties. IPNs are a combination of two or more polymers in network form with one network polymerised and/or crosslinked in the immediate presence of the other(s).1 IPNs allow better blending of two or more crosslinked networks. In this study two sets of IPNs were produced and their microstructure studied using a variety of techniques including small angle neutron scattering (SANS). The first system combined a glassy polymer (polystyrene) with an elastomeric polymer (SBS) with the glassy polymer predominating, to give a high impact plastic. The second set of IPNs contained epichlorohydrin (CO) and nitrile rubber (NBR), and was formed in order to produce novel materials with enhanced chemical and gas barrier properties. In both cases if the phase mixing is optimised the probability of controlled morphologies and synergistic behaviour is increased. The PS/SBS IPNs were prepared using sequential polymerisation. The primary SBS network was thermally crosslinked, then the polystyrene network was polymerised and crosslinked using gamma irradiation to avoid possible thermal degradation of the butadiene segment of the SBS. Tough transparent systems were produced with no apparent thermal degradation of the polybutadiene segments. The epichlorohydrin/nitrile rubber IPNs were formed by simultaneous thermal crosslinking reactions. The epichlorohydrin network was formed using lead based crosslinker, while the nitrile rubber was crosslinked by peroxide methods. The use of two different crosslinking systems was employed in order to achieve independent crosslinking thus resulting in an IPN with minimal grafting between the component networks. SANS, Transmission electron microscopy (TEM), and atomic force microscopy (AFM) were used to examine the size and shape of the phase domains and investigate any variation with crosslinking level and irradiation dose. SANS proved extremely useful for examining the size and shape of the phase domains in these IPNs. We have examined a range of both thermal and radiation crosslinked IPNs using SANS facilities at ANSTO and NIST. Selected samples were sectioned into 1mm strips and stacked to form a composite sample to examine in-plane structure.2 The examination of some of the samples in two perpendicular directions greatly assisted structure determination. New results from real-time thermal polymerisation experiments will also be discussed

2003-06-25

288

Population dynamics of the mushroom coral Heliofungia actiniformis in the Spermonde Archipelago, South Sulawesi, Indonesia  

Science.gov (United States)

The fungiid Heliofungia actiniformis is one of the most popular coral species in the Indonesian aquarium trade, yet information on the biology of this species is limited. H. actiniformis growth rates, population size-frequency distributions and the seasonality of recruitment rates were measured at three replicate sites in the Spermonde Archipelago, South Sulawesi. Growth and population models were applied to estimate coral ages, mortality rates and the size of maximum yield. Growth decreased linearly with polyp size. High numbers of attached polyps budded from clusters of stalks attached to the reef, with each cluster originating from the settlement of a sexually produced larva. Neither the settlement of sexual recruits, nor their asexual budding, showed seasonality. The overall population structure reflected the high mortality rates of young, attached polyps ( Z = 0.5-0.6 yr-1), and the much lower mortalities of free-living individuals ( Z = 0.05-0.08 yr-1). There were no statistically significant differences in overall mortality rates and the age-frequency distributions of polyps aged 0-15 years between the sites. Differences in the abundance of large H. actiniformis polyps at the three replicate sites were correlated with percent cover of coral rubble. The application of the Beverton and Holt model revealed the highest biomass per H. actiniformis recruit was 12 cm, corresponding to a polyp age of 20 years.

Knittweis, L.; Jompa, J.; Richter, C.; Wolff, M.

2009-09-01

289

AN ASSESSMENT OF HEAVY METAL CONCENTRATIONS IN THE SCLERACTINIAN CORAL TISSUES OF KARIMUNJAWA ARCHIPELAGO, INDONESIA  

Directory of Open Access Journals (Sweden)

Full Text Available Karimunjawa archipelago, marine national park, has been considered to be a relatively pristine area that have more than 90 species of corals. This study was conducted to detect any concentrations heavy metal levels in the tissues of eight coral species. Based on life-forms, selected coral species are classified as massive (Porites lutea and Goniastrea retiformis, submassive (Galaxea fascicularis and Stylophora pistillata, foliaceous (Pavona decussata and Montipora foliosa and branching/ramosa (Acropora aspera and Pocillopora damicornis. The concentration of heavy metals in the coral tissues were assessed using Atomic Absorption Spectrophotometer (AAS technique. The present experimental results demonstrated that metal in coral tissues were no significant difference between sites. Concentration levels of five heavy metals were found to be in the order of Pb>Zn>Cr>Cd>Cu. Relating heavy metal concentrations to life-form corals, there were no significant differences of all the metals (except Pb, the highest concentration of Pb were found in foliaceous type of corals. The high level of Pb in foliaceous coral life-form (Pavona decussata and Montipora foliosa, indicating that these coral species are usefull as potential candidates of biomonitoring material for this metal. However, the use of corals as biomonitors should be considered carefully in biological and local environmental factors.

Agus Sabdono

2009-10-01

290

Tropical storm off Myanmar coast sweeps reefs in Ritchie's Archipelago, Andaman.  

Science.gov (United States)

The reefs in some islands of Andaman and Nicobar suffered severe damage following a tropical storm in the Bay of Bengal off Myanmar coast during 13-17 March 2011. Surveys were conducted at eight sites in Andaman, of which five were located in the Ritchie's Archipelago where maximum wind speeds of 11 m s(-1) was observed; and three around Port Blair which lay on the leeward side of the storm and had not experienced wind speeds of more than 9 m s(-1). Corals in the shallow inshore reefs were broken and dislodged by the thrust of the waves. Significant damage in the deeper regions and offshore reefs were caused by the settlement of debris and sand brought down from the shallower regions. The fragile branching corals (Acropora sp.) were reduced to rubbles and the larger boulder corals (Porites sp.) were toppled over or scarred by falling debris. The reefs on the windward side and directly in the path of the storm winds were the worst affected. The investigation exposes the vulnerability of the reefs in Andaman to the oceanographic features which generally remain unnoticed unless the damage is caused to the coastal habitats. PMID:23135061

Krishnan, P; Grinson-George; Vikas, N; Titus-Immanuel, Titus; Goutham-Bharathi, M P; Anand, A; Kumar, K Vinod; Kumar, S Senthil

2013-06-01

291

Immediate replacement of fishing with dairying by the earliest farmers of the northeast Atlantic archipelagos  

Science.gov (United States)

The appearance of farming, from its inception in the Near East around 12 000 years ago, finally reached the northwestern extremes of Europe by the fourth millennium BC or shortly thereafter. Various models have been invoked to explain the Neolithization of northern Europe; however, resolving these different scenarios has proved problematic due to poor faunal preservation and the lack of specificity achievable for commonly applied proxies. Here, we present new multi-proxy evidence, which qualitatively and quantitatively maps subsistence change in the northeast Atlantic archipelagos from the Late Mesolithic into the Neolithic and beyond. A model involving significant retention of hunter–gatherer–fisher influences was tested against one of the dominant adoptions of farming using a novel suite of lipid biomarkers, including dihydroxy fatty acids, ?-(o-alkylphenyl)alkanoic acids and stable carbon isotope signatures of individual fatty acids preserved in cooking vessels. These new findings, together with archaeozoological and human skeletal collagen bulk stable carbon isotope proxies, unequivocally confirm rejection of marine resources by early farmers coinciding with the adoption of intensive dairy farming. This pattern of Neolithization contrasts markedly to that occurring contemporaneously in the Baltic, suggesting that geographically distinct ecological and cultural influences dictated the evolution of subsistence practices at this critical phase of European prehistory.

Cramp, Lucy J. E.; Jones, Jennifer; Sheridan, Alison; Smyth, Jessica; Whelton, Helen; Mulville, Jacqui; Sharples, Niall; Evershed, Richard P.

2014-01-01

292

Parallel responses of bees to Pleistocene climate change in three isolated archipelagos of the southwestern Pacific.  

Science.gov (United States)

The impacts of glacial cycles on the geographical distribution and size of populations have been explored for numerous terrestrial and marine taxa. However, most studies have focused on high latitudes, with only a few focused on the response of biota to the last glacial maximum (LGM) in equatorial regions. Here, we examine how population sizes of key bee fauna in the southwest Pacific archipelagos of Fiji, Vanuatu and Samoa have fluctuated over the Quaternary. We show that all three island faunas suffered massive population declines, roughly corresponding in time to the LGM, followed by rapid expansion post-LGM. Our data therefore suggest that Pleistocene climate change has had major impacts across a very broad tropical region. While other studies indicate widespread Holarctic effects of the LGM, our data suggest a much wider range of latitudes, extending to the tropics, where these climate change repercussions were important. As key pollinators, the inferred changes in these bee faunas may have been critical in the development of the diverse Pacific island flora. The magnitude of these responses indicates future climate change scenarios may have alarming consequences for Pacific island systems involving pollinator-dependent plant communities and agricultural crops. PMID:24807250

Groom, Scott V C; Stevens, Mark I; Schwarz, Michael P

2014-01-01

293

{sup 137}Cs dating of laminated sediments in Swedish archipelago areas of the Baltic Sea  

Energy Technology Data Exchange (ETDEWEB)

In deep off-shore areas of the Baltic Sea, sediment accumulation rates are typically on the order of one or a few millimeters per year, and even less in consolidated sediments, based on laming counts and radiometric dating. In lacustrine and marine basins, the highest sedimentation rates are usually found in the deepest part, since sediments and associated contaminants are known to be gradually `focused` from shallow to deep areas by resuspension. Accordingly, net sedimentation in coastal areas is usually low or absent due to strong erosion forces. On the other hand, coastal sediments are likely to be important in controlling the fate and turnover of contaminants that are released into coastal waters. Since little is known about the turnover of coastal sediments, in particular for heterogeneous semi-enclosed areas such as the Baltic archipelagos, a study of sediment accumulation rates has been initaited, with a focus on areas where erosion is likely to be minimal. The study is part of a project focusing on the relationship between eutrophication and contaminant cycling (EUCON). 88 sediment cores were collected during summer 1996 from accumulation bottoms of 18 more or less protected bays in archipalgo areas along the swedish coast of the Baltic Sea 4 refs.

Meili, M.; Jonsson, P. [Uppsala University, Inst. of Earth Sciences, Sedimentology, Uppsala (Sweden); Carman, R. [Stockholm University, Dept. of Geology and Geochemistry, Stockholm (Sweden)

1998-08-01

294

Volatile organic compounds (VOCs) in air from Nisyros Island (Dodecanese Archipelago, Greece): Natural versus anthropogenic sources  

International Nuclear Information System (INIS)

This study presents the chemical composition of VOCs in air and gas discharges collected at Nisyros Island (Dodecanese Archipelago, Greece). The main goals are i) to discriminate between natural and anthropogenic VOC sources and ii) to evaluate their impact on local air quality. Up to 63 different VOCs were recognized and quantitatively determined in 6 fumaroles and 19 air samples collected in the Lakki caldera, where fumarolic emissions are located, and the outer ring of the island, including the Mandraki village and the main harbor. Air samples from the crater area show significant concentrations of alkanes, alkenes, cyclic, aromatics, and S- and O-bearing heterocycles directly deriving from the hydrothermal system, as well as secondary O-bearing compounds from oxidation of primary VOCs. At Mandraki village, C6H6/?(methylated aromatics) and ?(linear)/?(branched) alkanes ratios 2O–CO2–H2S rich and discharge a large variety of VOC species. •Benzene/toluene ratios identify anthropogenic and natural sources of VOCs in air. •Aldehydes in air are produced by oxidation of alkanes and alkenes. •Geogenic furans and hydrogenated halocarbons in air are recalcitrant. -- Anthropogenic and natural VOCs in air are distinguished on the basis of aromatic, O-substituted, S-substituted and halogenated compounds

2013-09-01

295

Multi-parametric observation of biological contribution to surface structure of the water in archipelagos  

Science.gov (United States)

The multi-parametric data observed by the Synthetic Aperture Radar (SAR) and the Moderate Image Scanning Radiometer (MODIS) were applied to analyze the water distribution in the Philippine Archipelago to build a new radar imaging model. The SAR provides information on the surface structure of the water affected by various phenomena such as currents, internal waves, swells, surface winds, rain falls, natural films, and so on. One difficult parameter among them is the natural film, which exhibits a damping effect to the surface roughness from breaking waves to capillary ones. The chlorophyll-a concentration observed by satellite sensors such as MODIS provide estimates of the standing stock of phytoplankton, which is considered as the parameter estimating the standing stock of zooplankton. The standing stocks of phytoplankton and zooplankton could be a proportional parameter to the amount of the natural film. In this study, a frequency dependent multi-parametric equation was proposed to rebuild the surface roughness with various parameters in the spectrum domain. Possible validation study was conducted with the relationship between the sum of power spectrum for certain frequency range with chlorophyll-a concentration on the Mindanao Sea and the Surigao Strait.

Asanuma, Ichio; Hasegawa, Daisuke; Arvelyna, Yessy

2007-10-01

296

Kinematics of deformation across the Philippine Archipelago as observed from GPS campaign data  

Science.gov (United States)

More than 150 Global Positioning System (GPS) points across the Philippine archipelago have been installed by the Philippine Institute of Volcanology and Seismology (PHIVOLCS) and its collaborative partners. Results from the repeated GPS measurements conducted since 1996 up to the present on these points showed the following: (1) Based on uniform motion and velocity directions gathered from the GPS data, the Philippine Mobile Belt can generally be subdivided into three blocks: Central to Northern Luzon; Southern Luzon to Southern Visayas; Mindanao; (2) There is a significant internal deformation in the Philippine Mobile Belt as seen from variable velocities and azimuth directions relative to Eurasian plate. (3) Relative velocities across the Philippine Fault vary from 20 mm/yr to 29 mm/yr (vector azimuths from 322 deg to 4 deg) in Northern Luzon; 31.2 mm/yr to 53.3 mm/yr (300 deg to 310 deg) in Southern Luzon; 20.5 mm/yr to 25.1 mm/yr (305 deg to 347 deg) in Visayas and 14 mm/yr to 33 mm/yr (338 deg to 40 deg) in Mindanao. (4) There is an active extensional deformation (18 mm/yr) in Macolod Corridor while compressional deformation (24 mm/yr) exists between Southern Visayas and Mindanao. This reverse analogue of deformation is probably the result of the collision between Palawan and the Philippine Mobile Belt.

Bacolcol, T.; Solidum, R., Jr.; Yu, S.; Phivolcs Gps Team

2010-12-01

297

Middle Carboniferous fusulinacean biostratigraphy, northern Ellesmere Island (Sverdrup Basin, Canadian Arctic Archipelago)  

Energy Technology Data Exchange (ETDEWEB)

It is generally considered that Carboniferous and Permian strata in the Sverdrup Basin and elsewhere in the circum-Arctic regions of the world have significant petroleum potential. The Sverdrup Basin is an elongate pericratonic depression underlying much of the Canadian Arctic Archipelago. The oldest rocks in the basin, nonmarine marlstones that constitute the Visean Emma Fiord Formation, occur in isolated structural depressions along the southern margin and in the centre of the basin. The Borup Fiord Formation, consisting mainly of marine and nonmarine siliciclastics, was the first widespread sedimentary unit to be deposited following initial rifting and collapse of the basin. At its type section on northern Ellesmere Island, the Borup Fiord Formation contains a thin marine limestone with biseriamminid and asteroarchaediscid foraminifers of Serpukhovian age. This limestone is the only datable unit in the whole Borup Fiord Formation. Continued rifting and subsidence of the the Sverdrup Basin led to predominantly marine conditions, which are recorded at the basin margins by a thick succession of bioclastic limestone belonging to the Nansen Formation. The presence of primitive fusilinaceans from the lower several meters of the Nansen and its type strongly suggests an early Bashkirian age. Erosional relief, coupled with biostratigraphic evidence, indicates an unconformable contact between the Borup Fiord and Nansen formations. Successively higher deposits within the lower 350 m of the Nansen are characterized by fusilinacean assemblages that range from Bashkirian through early late Moscovian time. 160 refs., 11 figs., 1 tab.

Grooves, J.R.; Nassichuk, W.W.; Lin Rui; Pinard, S.

1994-01-01

298

Summer mesozooplankton community of Moller Bay (Novaya Zemlya Archipelago, Barents Sea  

Directory of Open Access Journals (Sweden)

Full Text Available Novaya Zemlya Archipelago is the eastern boundary of the Barents Sea. Theplankton of this region have been less intensively studied than thoseof other Arctic areas. This study of the mesozooplankton assemblage of Moller Bay was conducted in August2010. The total mesozooplankton abundance and biomass ranged from 962to 2980 individuals m-3 (mean ± SD: 2263 ± 921 indiv.m-3 and from 12.3 to 456.6 mg dry mass m-3 (mean ± SD:192 ± 170 DM m-3 respectively. Copepods and appendicularians werethe most numerous groups with Oithona similis, Pseudocalanusspp.,Acartiaspp., Calanus glacialis and Oikopleura vanhoeffennibeing the most abundant and frequent. Mesozooplankton abundance tendedto decrease with depth, whereas an inverse pattern was observed for the totalbiomass. Total mesozooplankton biomass was negatively correlated with watertemperature and positively correlated with salinity and chlorophyll aconcentration. Comparison with previous data showed significant interannualvariations in the total zooplankton stock in this region that may be due todifferences in sampling seasons, climatic conditions and the distribution ofpotential food sources (phytoplankton and seabird colonies.

A. G. Dvoretsky

2013-02-01

299

Field observations of recent transgression on northern and eastern Melville Island, western Canadian Arctic Archipelago  

Science.gov (United States)

After ~ 11,000 years of glacio-isostatically induced forced regression, geomorphological evidence indicates that the coastline of eastern Melville Island, western Canadian Arctic Archipelago, is now being transgressed. Recently developed coastal features associated with this transgression include: drowned gullies and small estuaries, barriers and lagoons, barrier islands, erosional notches, backstepping beaches, and drowned tundra vegetation and vehicle tracks dating from the 1970s. We mainly attribute this relative sea-level rise to the eastward migration of a peripheral crustal forebulge. Furthermore, the reported transgression also includes a component from recent eustatic sea-level rise during the 20th century. Recent earthquakes recorded in the Gustav-Lougheed Arch Seismic Zone located in Byam Martin Channel, 70 km east of Melville Island, suggest that neotectonics could also be involved in local relative sea-level adjustments. Other factors associated with global warming, especially the formation of an earlier shore-ice lead coupled with increased storm activity might also be responsible for some of the coastal changes. Our study indicates that the current zero isobase, separating areas of net transgression from those of net regression, is now located off the east coast of the island. Our field observations support recent glacio-isostatic modelling that shows the island is presently undergoing a transgression.

Lajeunesse, Patrick; Hanson, Michelle A.

2008-11-01

300

Imaging rapidly deforming ocean island volcanoes in the western Galápagos archipelago, Ecuador  

Science.gov (United States)

local body wave arrival-time tomography methods to determine 3-D seismic velocity structure, we imaged the plumbing system of Sierra Negra Volcano, Galápagos. This hot spot volcanic chain includes some of the fastest deforming volcanoes in the world, making this an ideal location to study shield volcano plumbing systems. We inverted P and S wave arrivals recorded on a 15-station temporary array between July 2009 and June 2011 using an a priori 1-D velocity model constrained by offshore refraction studies. With local seismicity from nearby volcanoes as well as the ring fault system, the model resolution is good between depths of 3 and 15.5 km. The propagation of S waves throughout this volume argues against any large high-melt accumulations, although a shallow melt sill may exist above 5 km. We image a broad low-velocity region (>25 km laterally) below Sierra Negra at depths ~8-15 km. No large, regional velocity increase is found within the limits of good resolution, suggesting that crust is thicker than 15 km beneath the western Galápagos archipelago. Our results are consistent with crustal accretion of mafic cumulates from a large-volume magma chamber that may span the boundary between preplume and accreted crust. The similarity between our results and those of Hawaii leave open the possibility that the crust has also been thickened by under-plating.

Tepp, Gabrielle; Ebinger, Cynthia J.; Ruiz, Mario; Belachew, Manahloh

2014-01-01

 
 
 
 
301

Restrictions on the compatibility of equipment in archipelago countries: PERTAMINA experiences in Indonesia  

International Nuclear Information System (INIS)

Being an archipelago state, the sea area of Indonesia is four times larger than its land area. Oil and natural gas play significant roles in the country's economic development. These activities at sea are showing signs of increasing, inevitably rendering the marine environment and living resources vulnerable to oil spills. Accidents, particularly grounding and collision occurrences in Malacca and the Singapore Straits sea lanes pose imminent threats. At PERTAMINA, the state-owned oil, gas and geothermal enterprise, oil spill contingency planning is entrusted to the Corporate Center for Environment Protection, Health and Safety. Marine activities are managed under the Directorate of Shipping, Harbour and Communication. In this paper oil spill response planning and coordination activities, which are based on the International Petroleum Industry Environmental Conservation Association (IPIECA) tiered preparedness concept, are described. The tiered preparedness concept addresses the limited availability of equipment, and incorporates specific response plans for each type of spill scenario (e.g. passing tanker, loading/unloading ship at terminal, major inland spill, etc), for each area of operation. It also specifies the type of equipment that must be available in the area to respond to the type of spill (using the concept of maximum credible spill in each case) that may occur in that area. 5 figs

1997-06-11

302

Modeling ocean and sea ice dynamics of the Canadian Arctic Archipelago: Aspects of forcing  

Science.gov (United States)

The Canadian Arctic Archipelago (CAA) is one of the main pathways for freshwater exiting the Arctic Ocean. Freshwater exported to the North Atlantic may influence the deep water formation in the Labrador Sea, and thus the meridional overturning circulation. Modeling ocean and sea ice conditions of the CAA is difficult because of narrow straits and complex coastlines. The Finite-Element Sea-ice Ocean circulation Model (FESOM) configured on a global mesh is applied to assess the volume, freshwater and sea ice transports through the CAA. With a mesh resolution of 5 km in the CAA we are able to accurately resolve complex coastlines. Outside the CAA the mesh is refined to 24 km north of 55°N with a global background resolution of 1.5°. In this study, first, it is shown that the transports modeled with FESOM correlate well with the available observational data. Second, the model is used to learn about the impact of different atmospheric forcing datasets differing in spatial and temporal resolution (CORE 2 and the Reforecast dataset from Environment Canada). The CORE 2 dataset is on the T62 grid, which is coarse compared to the Reforecast dataset with grid resolution of 0.45° longitude and 0.3° latitude. The temporal resolution of the Reforecast dataset is higher than the CORE 2 dataset (one hourly and 6-hourly data, respectively, for wind, surface temperature and specific humidity fields). The representation of sea ice in the CAA can be improved by using the high resolution atmospheric forcing.

Wekerle, Claudia; Wang, Qiang; Danilov, Sergey; Myers, Paul G.; Jung, Thomas; Schröter, Jens

2013-04-01

303

Integrating terrestrial and marine archives of Late Wisconsinan ice stream dynamics in the Canadian Arctic Archipelago  

Science.gov (United States)

During Late Wisconsinan glaciation the northern Laurentide and Innuitian ice sheets converged over the Canadian Arctic Archipelago. This ice sheet complex included several major ice streams, which constituted important dynamical components. Discharging into the Beaufort Sea and Baffin Bay, these ice streams were a primary control on ice sheet mass balance and ice age sedimentation on adjacent continental margins, including the Arctic Ocean basin. This study presents a new compilation of multibeam echosounder data, sub-bottom profiler data, radiocarbon ages, and marine sediment cores acquired primarily during regional surveys with the CCGS Amundsen. These data characterize the nature and thickness of seafloor sediments in Parry Channel (and many of its connecting channels) and Amundsen Gulf. When combined with the results of terrestrial geomorphological mapping of the adjacent islands, this dataset constrains the maximum extent, chronology, and behaviour of former ice streams in M'Clure Strait, Viscount Melville Sound, Lancaster Sound, and Amundsen Gulf. Importantly, these data highlight complex patterns of past ice stream flow during regional deglaciation. These results contribute to a better understanding of the causal mechanisms that occasioned retreat of the terrestrial and marine sectors of the Laurentide and Innuitian ice sheets. As well, this study helps to quantify past iceberg fluxes to the Arctic Ocean, which has implications for assessing past climate, and the origin of ice-rafted sediment and deep iceberg scours in the Arctic Ocean basin.

Lakeman, Thomas; Blasco, Steve; MacLean, Brian; Bennett, Robbie; England, John; Hughes Clarke, John; Covill, Bob; Patton, Eric

2014-05-01

304

Patch-Based Generative Shape Model and MDL Model Selection for Statistical Analysis of Archipelagos  

DEFF Research Database (Denmark)

We propose a statistical generative shape model for archipelago-like structures. These kind of structures occur, for instance, in medical images, where our intention is to model the appearance and shapes of calcifications in x-ray radio graphs. The generative model is constructed by (1) learning a patch-based dictionary for possible shapes, (2) building up a time-homogeneous Markov model to model the neighbourhood correlations between the patches, and (3) automatic selection of the model complexity by the minimum description length principle. The generative shape model is proposed as a probability distribution of a binary image where the model is intended to facilitate sequential simulation. Our results show that a relatively simple model is able to generate structures visually similar to calcifications. Furthermore, we used the shape model as a shape prior in the statistical segmentation of calcifications, where the area overlap with the ground truth shapes improved significantly compared to the case where the prior was not used.

Ganz, Melanie; Nielsen, Mads

2010-01-01

305

Number of endemic and native plant species in the Galapagos Archipelago in relation to geographical parameters  

DEFF Research Database (Denmark)

By simple and multiple regression analyses we investigate updated species numbers of endemic and native vascular plants and seed plants in the Galapagos Archipelago in relation to geographical parameters. We find that the best models to describe species numbers are regression models with log-transformed species numbers as dependent and log-transformed modified area (i.e. area not covered with barren lava) as an independent variable. This holds both for total species number, for native species number, for endemic species number and for total number of seed plants as well as number of endemic seed plants. For the ratio between endemic and native species, modified area is also the major significant variable, but with a negative regression slope. Multiple regression models show that some isolation measures are significant contributors and may explain some of the residual variation, but their contribution to total explained variation is in general small. The results show that the species area relationships are different for native and endemic species. This is discussed in relation to classical island biogeographical models, and the concepts of radiative speciation.

Willerslev, Eske; Hansen, Anders J.

2002-01-01

306

77 FR 15799 - Notice of Intent To Repatriate a Cultural Item: San Francisco State University, San Francisco, CA  

Science.gov (United States)

...of Intent To Repatriate a Cultural Item: San Francisco State University, San Francisco, CA AGENCY: National Park Service, Interior...SUMMARY: The San Francisco State University, in consultation with...

2012-03-16

307

76 FR 22809 - Safety Zone; Bay Ferry II Maritime Security Exercise; San Francisco Bay, San Francisco, CA  

Science.gov (United States)

...Bay Ferry II Maritime Security Exercise; San Francisco Bay, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION: Temporary...safety zone on the navigable waters of the San Francisco Bay in support of the Bay Ferry II Maritime...

2011-04-25

308

77 FR 36041 - San Antonio Central Railroad, L.L.C.-Lease Exemption-Port Authority of San Antonio  

Science.gov (United States)

...TRANSPORTATION Surface Transportation Board [Docket No. FD 35603] San Antonio Central Railroad, L.L.C.--Lease Exemption--Port Authority of San Antonio San Antonio Central Railroad, L.L.C. (SAC), a noncarrier, has filed a...

2012-06-15

309

Sustainable Sanitation Alliance (SuSanA) | Projects at SEI  

...Sustainable Sanitation Alliance (SuSanA) | Projects at SEI Sustainable Sanitation Alliance (SuSanA) | Projects at SEI GLOBAL STOCKHOLM YORK ...org Sustainable Sanitation Alliance (SuSanA) SEI is one of the founding members of the Sustainable Sanitation Alliance (SuSanA).SuSanA is an informal network ... SuSanA came into existence in early 2007 and works as a coordination platform, working platform, sounding board, contributor to the ...Goal and objectives of the SuSanAThe overall goal of the SuSanA is to contribute to the achievement of the MDGs by promoting sanitation systems ...

310

Fishery of the Green Jack Caranx caballus (Osteichytes: Carangidae in Las Perlas Archipelago, Pacific Panama  

Directory of Open Access Journals (Sweden)

Full Text Available Green Jacks, Caranx caballus, are distributed along the Eastern Pacific coast. In Panama, C. caballus was heavily fished around Las Perlas Archipelago to sustain local markets until 2007, when the archipelago was declared a marine protected area. This first study in Panama, analyzed a sample of 4 990 individuals from Las Perlas, obtained monthly from June 2005 to June 2006, from landings at the central fish market. Average total length was 36.1±6.4cm and optimum length 38.9cm. Approximately 68% of fish lengths were within ±10% of the optimal length but only six (15% were considered mega-spawners. The von Bertalanffy parameters describe a long-lived and fast growing species, while mortality rates revealed that C. caballus is under high fishing pressure. Standard length at which half of the population is mature was 38.8cm, and the size at which individuals matured massively, 33cm. Only 10-13% of the fish were immature. C. caballus reproduces two to three times per year, with peaks in December, April, and probably September, and recruits to the population at least twice per year. Catch per unit effort (CPUE was best predicted by minimum annual values of the Multivariate ENSO/ LNSO Index (MEI (R²=0.54. Results show that C. caballus in Pacific Panama is overfished. We recommend the raising of the minimum capture/landing size of this species in order to increase the proportion of megaspawners in the population and guarantee the sustainability of this resource.El jurel verde o “cojinúa”, Caranx caballus, se distribuye a lo largo de la costa del Pacífico Oriental. En el Archipiélago de Las Perlas, Panamá, la cojinúa fue pescada sin control para sostener mercados locales hasta el 2007, fecha en la que esta región fue declarada área marina protegida. En este primer estudio para Panamá, se analizaron desde junio de 2005 a junio de 2006, 4 990 individuos en las descargas del Mercado Central de Mariscos provenientes de Las Perlas. La longitud media total de esta especie fue de 36.1±6.4cm y la longitud óptima, 38.9cm. Aproximadamente, 68% de los individuos muestreados poseen longitudes dentro de ±10% de la longitud óptima, pero sólo seis (15% eran mega-reproductores. Los parámetros de la ecuación de von Bertalanffy describen la especie como de larga vida y de rápido crecimiento, mientras que las tasas de mortalidad indican que la cojinúa está bajo una alta presión de pesca. La longitud estándar a la que la mitad de la población es sexualmente madura es 38.8cm y el tamaño de maduración masiva, 33cm. Sólo entre el 10-13% de los individuos muestreados son inmaduros. La cojinúa se reproduce 2-3 veces al año, con picos en diciembre, abril y probablemente septiembre, y recluta a la población por lo menos dos veces al año. Los valores mínimos anuales del Índice ENSO/LNSO multivariado (MEI son los mejores predictores de la CPUE de esta especie (R²=0.54. Nuestros resultados demuestran que la cojinúa en el Pacífico Panameño está sobreexplotada por lo que recomendamos elevar la talla mínima de captura para permitir que aumente la proporción de mega-reproductores en la población con el fin de garantizar la sostenibilidad del recurso.

James M. Mair

2012-09-01

311

Fishery of the Green Jack Caranx caballus (Osteichytes: Carangidae) in Las Perlas Archipelago, Pacific Panama  

Scientific Electronic Library Online (English)

Full Text Available SciELO Costa Rica | Language: English Abstract in spanish El jurel verde o “cojinúa”, Caranx caballus, se distribuye a lo largo de la costa del Pacífico Oriental. En el Archipiélago de Las Perlas, Panamá, la cojinúa fue pescada sin control para sostener mercados locales hasta el 2007, fecha en la que esta región fue declarada área marina proteg [...] ida. En este primer estudio para Panamá, se analizaron desde junio de 2005 a junio de 2006, 4 990 individuos en las descargas del Mercado Central de Mariscos provenientes de Las Perlas. La longitud media total de esta especie fue de 36.1±6.4cm y la longitud óptima, 38.9cm. Aproximadamente, 68% de los individuos muestreados poseen longitudes dentro de ±10% de la longitud óptima, pero sólo seis (15%) eran mega-reproductores. Los parámetros de la ecuación de von Bertalanffy describen la especie como de larga vida y de rápido crecimiento, mientras que las tasas de mortalidad indican que la cojinúa está bajo una alta presión de pesca. La longitud estándar a la que la mitad de la población es sexualmente madura es 38.8cm y el tamaño de maduración masiva, 33cm. Sólo entre el 10-13% de los individuos muestreados son inmaduros. La cojinúa se reproduce 2-3 veces al año, con picos en diciembre, abril y probablemente septiembre, y recluta a la población por lo menos dos veces al año. Los valores mínimos anuales del Índice ENSO/LNSO multivariado (MEI) son los mejores predictores de la CPUE de esta especie (R²=0.54). Nuestros resultados demuestran que la cojinúa en el Pacífico Panameño está sobreexplotada por lo que recomendamos elevar la talla mínima de captura para permitir que aumente la proporción de mega-reproductores en la población con el fin de garantizar la sostenibilidad del recurso. Abstract in english Green Jacks, Caranx caballus, are distributed along the Eastern Pacific coast. In Panama, C. caballus was heavily fished around Las Perlas Archipelago to sustain local markets until 2007, when the archipelago was declared a marine protected area. This first study in Panama, analyzed a sample of 4 99 [...] 0 individuals from Las Perlas, obtained monthly from June 2005 to June 2006, from landings at the central fish market. Average total length was 36.1±6.4cm and optimum length 38.9cm. Approximately 68% of fish lengths were within ±10% of the optimal length but only six (15%) were considered mega-spawners. The von Bertalanffy parameters describe a long-lived and fast growing species, while mortality rates revealed that C. caballus is under high fishing pressure. Standard length at which half of the population is mature was 38.8cm, and the size at which individuals matured massively, 33cm. Only 10-13% of the fish were immature. C. caballus reproduces two to three times per year, with peaks in December, April, and probably September, and recruits to the population at least twice per year. Catch per unit effort (CPUE) was best predicted by minimum annual values of the Multivariate ENSO/ LNSO Index (MEI) (R²=0.54). Results show that C. caballus in Pacific Panama is overfished. We recommend the raising of the minimum capture/landing size of this species in order to increase the proportion of megaspawners in the population and guarantee the sustainability of this resource.

Mair, James M.; Cipriani, Roberto; Guzman, Hector M.; Usan, David.

312

Macrophytobenthic flora of the Abrolhos Archipelago and the Sebastião Gomes Reef, Brazil  

Science.gov (United States)

The Abrolhos Bank, located on the coast of Bahia, Brazil, harbors the largest coral reef system in the South Atlantic. This area has attracted the attention of biologists because of its peculiar mushroom-shaped structures, locally known as "chapeirões", and endemic species of corals and other organisms. The macrophytobenthos compartment plays an important ecological role in the functioning of the bank, and some reports on the presence of seaweeds and seagrasses have been published; however, the data are fragmentary, and a more detailed survey of the macrophytobenthos compartment is lacking. Here we consolidate the information available and add new data obtained from two expeditions focused on seaweed and seagrass diversity from two sectors of the bank: the islands of the Abrolhos archipelago (AA) and the Sebastião Gomes Reef (SG). These sites were selected for their contrasting characteristics. Specifically, SG (15 km off the mouth of the Caravelas River) is subjected to a broader range of anthropogenic impacts and to input of terrigenous sediments, while the AA (54 km offshore) is surrounded by calcareous biogenic sediments, has clearer water and is less affected by human activities. Macrophytobenthic species richness on both reference areas is larger than previously thought. Considering previous records, there are 164 species of macrophytes in AA and 111 species in SG, of which 59 and 74 species are first records for each respective location. The higher species richness at the AA may result from a higher habitat complexity and lower turbidity, but a potential negative effect of enhanced human impacts at SG cannot be ruled out. Considering that macroalgae are relevant components of the benthic community, as producers and structurer organisms, the data presented herein provide a reliable baseline for future environmental studies, and thus may contribute to improve management policies within the unique ecosystem of Abrolhos.

Torrano-Silva, Beatriz N.; Oliveira, Eurico C.

2013-11-01

313

Petrology of ultramafic xenoliths in Cenozoic alkaline rocks of northern Madagascar (Nosy Be Archipelago)  

Science.gov (United States)

Late Miocene basanites of Nosy Be and Nosy Sakatia islands (Nosy Be Archipelago, northern Madagascar) carry spinel-facies anhydrous ultramafic xenoliths (lherzolites, harzburgites and wehrlites). Geothermobarometric estimates indicate that these xenoliths derive from shallow mantle depths of 35-40 km, with those from Nosy Be island showing equilibration T (averages in the range of 945-985 °C) lower than the Nosy Sakatia analogues (averages ranging from 1010 to 1110 °C). One Nosy Sakatia mantle xenolith exhibits relatively fertile lherzolite composition, with trace and major element mineral chemistry consistent with a residual character after low degrees (1-2%) of mafic melt extraction. We interpret this composition as that resembling a depleted mantle (DM)-like lithospheric composition before metasomatic overprints. The other lherzolites and harzburgites display petrochemical characters consistent with variable extent of partial melting (up to 18%), associated with pronounced metasomatic overprints caused by migrating melts, as highlighted by enrichments in highly incompatible trace elements (e.g. light rare earth elements, LREE and Sr), together with the abundant occurrence of wehrlitic lithologies. The variability of petrochemical features points to different styles of metasomatism and metasomatic agents. The estimated composition of the parental melts of wehrlites matches that of host basanites. The combination of this evidence with the petrographic features, characterized by coarse-granular to porphyroclastic textures and by the presence of olivine without kink-banding, suggests that wehrlites are veins or pockets of high pressure cumulates within the mantle peridotite. The same melts also metasomatized via porous-flow percolation some lherzolites and harzburgites. Distinctly, a group of lherzolites and harzburgites was metasomatized by a different alkaline melt having markedly lower incompatible trace element contents. Late infiltration of metasomatic fluids is responsible for the spongy texture of some clinopyroxenes of lherzolites, harzburgites and wehrlites.

Rocco, Ivana; Lustrino, Michele; Zanetti, Alberto; Morra, Vincenzo; Melluso, Leone

2013-01-01

314

Genetic variation in the invasive avian parasite, Philornis downsi (Diptera, Muscidae on the Galápagos archipelago  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Understanding the dispersal and genetic structure of invasive insects across islands is important for designing management plans that are appropriate at spatial and temporal scales. For invasive parasites, population dynamics are largely determined by the distribution and density of their host species. The introduced parasitic fly, Philornis downsi, parasitises nestlings of endemic birds on all major islands of the Galápagos archipelago. The fly's high mortality and fitness impacts are of conservation concern for vulnerable and declining species of Darwin's finches. Using microsatellite data in Bayesian clustering and landscape genetic analyses, we examine gene flow and dispersal in P. downsi between three islands and across habitats (highlands, lowlands and examine for the presence of population bottlenecks. We also examine variation at the mitochondrial gene CO1 across islands to establish if cryptic species were present. Results Both the mitochondrial and microsatellite data were consistent with there being a single species across islands. We found low genetic differentiation between islands and strong evidence for inter-island gene flow, or shared recent ancestry among individuals. Landscape genetic analysis identified two genetic clusters: one encompassing Santa Cruz and Isabela, and one on Floreana Island. There was no evidence of genetic differentiation between habitats and molecular variance was mainly attributable to within individuals. The combined P. downsi population was found to have undergone a population bottleneck. Conclusion Philornis downsi populations have high connectivity within and between islands, with low levels of genetic differentiation between Floreana and the other two islands examined. The genetic bottleneck found across islands suggests there was a small founding population or few introduction events of P. downsi. The high dispersal capacity and wide habitat use of P. downsi highlights the significant threat that this parasite poses to the Galápagos avifauna. Our findings are relevant for assessing the viability of methods to control P. downsi on Galápagos, such as the sterile insect technique.

Donnellan Steve

2008-07-01

315

Insecticide susceptibility of Aedes aegypti populations from Senegal and Cape Verde Archipelago  

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Full Text Available Abstract Background Two concomitant dengue 3 (DEN-3 epidemics occurred in Cape Verde Archipelago and Senegal between September and October 2009. Aedes aegypti was identified as the vector of these epidemics as several DEN-3 virus strains were isolated from this species in both countries. The susceptibility to pyrethroids, organochlorine, organophosphates and carbamate was investigated in two field strains of Aedes aegypti from both countries using WHO diagnostic bioassay kits in order to monitor their the current status of insecticide susceptibility. Findings The two tested strains were highly resistant to DDT. The Cape Verde strain was found to be susceptible to all others tested insecticides except for propoxur 0.1%, which needs further investigation. The Dakar strain was susceptible to fenitrothion 1% and permethrin 0.75%, but displayed reduced susceptibility to deltamethrin, lambda-cyhalothrin and propoxur. Conclusions As base-line results, our observations stress a careful management of insecticide use for the control of Ae. aegypti. Indeed, they indicate that DDT is no longer efficient for the control of Ae. aegypti populations in Cape Verde and Dakar and further suggest a thorough follow-up of propoxur susceptibility status in both sites and that of deltamethrin and lambda-cyhalothrin in Ae. aegypti populations in Dakar. Thus, regular monitoring of susceptibility is greatly needed as well as the knowing if this observed resistance/susceptibility is focal or not and for observed resistance, the use of biochemical methods is needed with detailed comparison of resistance levels over a large geographic area. Keywords Aedes aegypti, Insecticides, Susceptibility, Cape Verde, Senegal

Dia Ibrahima

2012-10-01

316

Fe-binding dissolved organic ligands near the Kerguelen Archipelago in the Southern Ocean (Indian sector)  

Science.gov (United States)

During the Kerguelen Ocean and Plateau compared Study (KEOPS; January-February 2005) cruise, the area southeast of the Kerguelen Archipelago in the Indian sector of the Southern Ocean was investigated to identify the mechanisms of natural iron fertilization of the Kerguelen Plateau. In this study, the organic speciation of Fe is described. Samples were determined immediately on board using competing ligand-adsorptive cathodic stripping voltammetry (CL-AdCSV). The dissolved organic ligands were always in excess of the dissolved Fe concentration, increasing the residence time in the water column and the potential availability for phytoplankton. The concentration of the dissolved organic ligands ranged from 0.44 to 1.61 nEq of M Fe (=complexation site for Fe), with an average concentration of 0.91 nEq of M Fe (S.D.=0.28, n=113) and a mean logarithm of conditional stability constant (log K') of 21.7 (S.D.=0.28, n=113). A second weaker dissolved organic ligand group was detected in 32% of the samples, with Fe-binding characteristics at the edge of the detection window of the applied method. The occurrence of the highest concentrations of dissolved organic ligands in the wind-mixed surface layer and near the sediment at the bottom of the water column indicated that both phytoplankton and the sediment act as sources. Both sources are in concert with the general conclusions from the KEOPS research on the sources of Fe, where Fe was regenerated, organic Fe-binding ligands were formed in the upper layers, and both Fe and ligands were supplied by the sediment.

Gerringa, L. J. A.; Blain, S.; Laan, P.; Sarthou, G.; Veldhuis, M. J. W.; Brussaard, C. P. D.; Viollier, E.; Timmermans, K. R.

2008-03-01

317

Arctic environments and global change: Evidence in deep permafrost temperatures, Canadian arctic archipelago  

International Nuclear Information System (INIS)

In considering the role of the polar regions in future global change, one may look toward these regions for evidence of past environmental change. Deep ground temperatures provide one window on past surface temperatures, which may be interpreted in terms not only of past climate but also of past environmental conditions. Across the Canadian Arctic Archipelago, there is no consistent curvature in deep ground temperature profiles that can be modeled in terms of warming of the past century. This contrasts with the result reported by Lachenbruch et al. [1986] for the Prudhoe Bay area of Alaska and may be a consequence of the much larger region and wider well spacing considered in the Canadian case. Any curvature present varies from well to well and may be interpreted in terms of surface temperature changes of the order of 1-3 K on the scale of decades to centuries. However, there is some evidence that these surface temperature histories may arise from long-term changes in paleoenvironmental factors as well as climate. For instance, the paleoclimate derived from oxygen isotope data at the Agassiz Ice Cap has been compared with the geothermal signature at a well some 180 km to the west. For the Little Ice Age (LIA), the Agassiz paleoclimate explains only half the measured variation in ground temperatures at the geothermal site; the remaining variation may be due to other environmental effects, such as an increase in snow cover following the LIA. This is consistent with extrapolated surface temperatures 7 K higher than other Arctic sites and the unusually deep snow cover observed today

1991-12-01

318

Recent changes in the multi-year ice area budget of the Canadian Arctic Archipelago  

Science.gov (United States)

The Canadian Arctic Archipelago (CAA) is intricate collection of islands and channels located on the North American continental shelf. The deep-water route of the North West Passage crosses through the CAA near 75°N connecting the Atlantic and Pacific Oceans. The major challenge to safe navigation of the North West Passage is the presence of multi-year sea ice (MYI). In recent years, MYI conditions within the CAA during September have begun to decrease considerably with 2011 and 2012 being the lightest MYI years on record since 1968. Recent light MYI years within the CAA are associated with recent openings of the North West Passage (i.e. 2007, 2008, 2010, 2011 and 2012). MYI within the CAA is either imported from the Arctic Ocean or grown in situ and therefore in order to understand the processes contributing to these recent reductions in September MYI within the CAA we derived the first estimates of the MYI area budget of the CAA using RADARSAT-1 and RADARSAT-2 imagery from 1997-2012. Overall, there has been a reduced amount of Arctic Ocean MYI inflow into the CAA during the summer months since 2007. The latter process can be attributed to more frequent high sea level pressure anomalies over the Beaufort Sea and Canadian Basin. The amount of MYI grown in situ within the CAA has also reduced because of longer melt seasons reducing the survivability of seasonal ice over. MYI outflow to Baffin Bay from the CAA has been relatively consistent over the period. Interestingly, the recent reduced amount of MYI within the CAA, particularly noticeable since 2007, was found to be quantitatively linked with a step change increase in observed Arctic marine shipping activity following the dramatic summer sea ice reductions that began in 2007.

Howell, Stephen; Pizzolato, Larissa; Derksen, Chris; Brady, Michael

2014-05-01

319

Beyond EM-1: Lavas from Afanasy-Nikitin Rise and the Crozet Archipelago, Indian Ocean  

Science.gov (United States)

Lavas from Afanasy-Nikitin Rise, possibly the Late Cretaceous product of the Crozet hotspot, cover a wide range of isotopic compositions that includes the lowest (206Pb204Pb)t (to 16.77) and ?Nd(t) (to -8) values yet found among oceanic islands or spreading centers worldwide, as well as high (87Sr/86Sr)t (to 0.7066). In contrast, young basalts from the Crozet Archipelago exhibit a narrow range of variation around ?Nd ˜ +4, 87Sr/86Sr ˜ 0.7040, and 206Pb/204Pb ˜ 19.0, closely resembling that of shield lavas of the Réunion hotspot. The Afanasy-Nikitin rocks also have much higher Ba/Nb, Ba/Th, and Pb/Ce than modern oceanic island or ridge lavas, as well as high La/Nb. The data do not obviously support the Crozet plume model but, assuming the model to be plate tectonically correct, would indicate that the plume-source composition either changed dramatically or that Afanasy-Nikitin magmatism involved significant amounts of nonplume mantle. The low 206Pb/204Pb, low ?Nd lavas provide the best evidence to date of the sort of material that, by variably contaminating much of the Indian mid-ocean-ridge basalt (MORB) source asthenosphere, may be responsible for the isotopic difference between most Indian MORB and Pacific or North Atlantic MORB. The combined isotopic and trace element results suggest an ultimate origin in the continental crust or mantle lithosphere for this material, although whether it was cycled through the deep mantle or resided at shallow levels in the convecting mantle cannot currently be determined.

Mahoney, J. J.; White, W. M.; Upton, B. G. J.; Neal, C. R.; Scrutton, R. A.

1996-07-01

320

Magma sources of the Cape Verdes archipelago: Isotopic and trace element constraints  

Energy Technology Data Exchange (ETDEWEB)

The Sr-, Nd-, and Pb-isotopic compositions of Late Tertiary to Recent mafic alkaline rocks of the Cape Verdes archipelago vary from {sup 143}Nd/{sup 144}Nd = 0.512606-0.513045 ({epsilon}{sub Nd} = 0.5 + 8.1), {sup 87}Sr/{sup 86}Sr = 0.702922-0.703934, and {sup 206}Pb/{sup 204}Pb = 18.743-19.881. The variation of {sup 207}Pb/{sup 204}Pb with {sup 206}Pb/{sup 204}Pb in Cape Verdes lavas coincides with data for MORB, Hawaii, and Iceland, while {sup 208}Pb/{sup 204}Pb vs. {sup 206}Pb/{sup 204}Pb is an oblique, positive trend, i.e., {sup 208}Pb is higher in samples from the southern Cape Verdes islands which have lower {sup 206}Pb/{sup 204}Pb. At least three isotopically distinct components, including depleted upper mantle, are required in Cape Verdes magma sources. The isotopic and trace element characteristics of a component predominant in northern Cape Verdes magma sources with relatively radiogenic Pb and Nd (HIMU) suggest an origin for this component as ancient recycled oceanic crust. The trace element and isotopic variations, the large scale isotopic heterogeneity, the intra-island stratigraphic variations, the apparent geographic age progression of magmatism, and the geophysical constraints are best explained by variable partial melting of a heterogeneous plume (HIMU + depleted mantle) in the northern Cape Verdes, and mixing of plume-derived melts with lithospheric (EM) melts in the southern Cape Verdes. Alternatively, an EM plume produces magma supplied to the southern Cape Verdes, and the northern Cape Verdes, located off the plume track, are supplied by relatively lower degrees of melting at the plume margin which has entrained pre-existing HIMU components from a heterogeneous (DM + HIMU) upper mantle.

Gerlach, D.C. (Carnegie Institution of Washington, DC (USA)); Cliff, R.A.; Davies, G.R. (Univ. of Leeds (England)); Norry, M.; Hodgson, N. (Univ. of Leicester (England))

1988-12-01

 
 
 
 
321

Predicting the occurrence of rocky reefs in a heterogeneous archipelago area with limited data  

Science.gov (United States)

The lack of spatial distribution data on marine habitats often presents an obstacle to their protection. The Annex I of the Habitats Directive (European Council Directive 92/43/EEC) lists habitats that are important in biodiversity protection and should be maintained (or restored) to a favourable conservation status. The habitats listed should be protected within an ecological network of protected areas, the Natura 2000 network. However, in the past the establishment of the marine Natura 2000 network has been largely based on insufficient knowledge on the distribution of the habitats. Annex I habitat type reefs are defined as formations of hard compact biogenic or geogenic substrata, which arise from the seafloor in the sublittoral and littoral zone. As obtaining marine data is time-consuming and costly, the bathymetric and substratum data needed for their identification on a larger scale are often scarce. Furthermore, the use of data may be limited due to e.g. national security reasons. This study identifies reefs in a complex archipelago area in the northern Baltic Sea using the best, although limited, data currently available. In the area reefs are elevated rocky outcrops and the associated algal communities and blue mussel beds are vital in maintaining biodiversity in the relatively species poor Baltic Sea. In addition to identifying the physical reef structures, an estimate of their ecological value is obtained by modelling the distribution of four key species occurring on reefs. The results are encouraging, as 55 out of 68 of the potential reefs ground-truthed were confirmed to be reefs. Furthermore the number of predicted species occurring on the reefs, correlated significantly with the number of species observed. The presented maps serve as a valuable background for more detailed mapping of the species diversity occurring on reefs as well as for monitoring their ecological status. Map-based information on important habitats is essential in conservation and marine spatial planning to minimize human impact on marine ecosystems.

Rinne, Henna; Kaskela, Anu; Downie, Anna-Leena; Tolvanen, Harri; von Numers, Mikael; Mattila, Johanna

2014-02-01

322

Lepidoptera : Systematic catalogue of the entomofauna of the Madeira Archipelago and Selvagens Islands 1  

DEFF Research Database (Denmark)

  Being the first of a series dealing with the entomofauna of the Madeira and Selvagens Islands, this catalogue is a list of all Lepidoptera recorded from this region of Macaronesia, with references to the relevant literature. The checklist includes 37 families, 211 genera and 331 species. 31 species are recorded from Madeira for the first time, and exact data and locality are given for these in the notes. 32 species, which had previously been recorded from Madeira, are removed from the list of Lepidoptera found in the Madeira Islands being misidentifications, doubtful and unconfirmed records, undetermined species requiring further study and accidentally introduced species which have not established themselves in Madeira. No genus of Lepidoptera is endemic to Madeira, but 81 species are endemic to the Madeira Archipelago, and a further 36 species are considered Macaronesian endemics. One species occurs as two distinct subspecies on Madeira Island and Deserta Grande, respectively. We also comment on taxonomicand nomenclatorial problems in a number of species and provide information on host plants in Madeira and other biological details. Index to Latin names of Lepidoptera and host plants are given. The reference list includes 431 references for Madeiran Lepidoptera. The following nomenclatorial changes are proposed: Clepsis retiferana (Stainton, 1859) is removed from synonymy with C. subcostana (Stainton, 1859) (sp. rev.), Cyclophora maderensis ssp. lundbladi (Bryk, 1940) is a synonym of C. maderensis ssp. maderensis (Bethune-Baker, 1891) (n. syn). Agrotis selvagensis Pinker & Bacallado, 1978 is a synonym of A. lanzarotensis Rebel, 1894 (n. syn) and Agrotis trux spp. maderensis Pinker, 1971 is a synonym of A. trux ssp. trux (Hübner, 1824) (n. syn.).

Aguiar, António M. Franquinho; Karsholt, Ole

2009-01-01

323

San Jose Children's Discovery Museum  

Science.gov (United States)

This website from the Children's Discovery Museum (CDM) in San Jose, California, offers a variety of interactive tools and games for children ages 4 to 10 years. The mathematics game featured is a card game called Arithmetic Rummy and requires a printer, while other features are more graphic-oriented. For example, an interactive video takes children through a short journey about energy, while another highlights water ways. The Teacher section provides additional tools and resources, which can be searched by grade level and then topic area. These lesson ideas can be used both on and off the Internet. Parents and teachers can also learn about other programs at the museum from this website. Registration is not required, but parents and educators are encouraged to register so CDM can "offer more personal experiences on the site for each child registrant" and "communicate appropriate educational content directly."

324

Low-frequency western Pacific Ocean sea level and circulation changes due to the connectivity of the Philippine Archipelago  

Science.gov (United States)

Interannual-to-decadal sea level and circulation changes associated with the oceanic connectivity around the Philippine Archipelago are studied using satellite altimeter sea surface height (SSH) data and a reduced gravity ocean model. SSHs in the tropical North Pacific, the Sulu Sea and the eastern South China Sea (ESCS) display very similar low-frequency oscillations that are highly correlated with El Niño and Southern Oscillation. Model experiments reveal that these variations are mainly forced by the low-frequency winds over the North Pacific tropical gyre and affected little by the winds over the marginal seas and the North Pacific subtropical gyre. The wind-driven baroclinic Rossby waves impinge on the eastern Philippine coast and excite coastal Kelvin waves, conveying the SSH signals through the Sibutu Passage-Mindoro Strait pathway into the Sulu Sea and the ESCS. Closures of the Luzon Strait, Karimata Strait, and ITF passages have little impacts on the low-frequency sea level changes in the Sulu Sea and the ESCS. The oceanic pathway west of the Philippine Archipelago modulates the western boundary current system in the tropical North Pacific. Opening of this pathway weakens the time-varying amplitudes of the North Equatorial Current bifurcation latitude and Kuroshio transport. Changes of the amplitudes can be explained by the conceptual framework of island rule that allows for baroclinic adjustment. Although it fails to capture the interannual changes in the strongly nonlinear Mindanao Current, the time-dependent island rule is nevertheless helpful in clarifying the role of the archipelago in regulating its multidecadal variations.

Zhuang, Wei; Qiu, Bo; Du, Yan

2013-12-01

325

Diversity and distribution of symbiodinium associated with seven common coral species in the Chagos Archipelago, central Indian Ocean.  

Science.gov (United States)

The Chagos Archipelago designated as a no-take marine protected area in 2010, lying about 500 km south of the Maldives in the Indian Ocean, has a high conservation priority, particularly because of its fast recovery from the ocean-wide massive coral mortality following the 1998 coral bleaching event. The aims of this study were to examine Symbiodinium diversity and distribution associated with scleractinian corals in five atolls of the Chagos Archipelago, spread over 10,000 km(2). Symbiodinium clade diversity in 262 samples of seven common coral species, Acropora muricata, Isopora palifera, Pocillopora damicornis, P. verrucosa, P. eydouxi, Seriatopora hystrix, and Stylophora pistillata were determined using PCR-SSCP of the ribosomal internal transcribed spacer 1 (ITS1), PCR-DDGE of ITS2, and phylogenetic analyses. The results indicated that Symbiodinium in clade C were the dominant symbiont group in the seven coral species. Our analysis revealed types of Symbiodinium clade C specific to coral species. Types C1 and C3 (with C3z and C3i variants) were dominant in Acroporidae and C1 and C1c were the dominant types in Pocilloporidae. We also found 2 novel ITS2 types in S. hystrix and 1 novel ITS2 type of Symbiodinium in A. muricata. Some colonies of A. muricata and I. palifera were also associated with Symbiodinium A1. These results suggest that corals in the Chagos Archipelago host different assemblages of Symbiodinium types then their conspecifics from other locations in the Indian Ocean; and that future research will show whether these patterns in Symbiodinium genotypes may be due to local adaptation to specific conditions in the Chagos. PMID:22567113

Yang, Sung-Yin; Keshavmurthy, Shashank; Obura, David; Sheppard, Charles R C; Visram, Shakil; Chen, Chaolun Allen

2012-01-01

326

Applying Fishers' ecological knowledge to construct past and future lobster stocks in the Juan Fernández Archipelago, Chile.  

Science.gov (United States)

Over-exploited fisheries are a common feature of the modern world and a range of solutions including area closures (marine reserves; MRs), effort reduction, gear changes, ecosystem-based management, incentives and co-management have been suggested as techniques to rebuild over-fished populations. Historic accounts of lobster (Jasus frontalis) on the Chilean Juan Fernández Archipelago indicate a high abundance at all depths (intertidal to approximately 165 m), but presently lobsters are found almost exclusively in deeper regions of their natural distribution. Fishers' ecological knowledge (FEK) tells a story of serial depletion in lobster abundance at fishing grounds located closest to the fishing port with an associated decline in catch per unit effort (CPUE) throughout recent history. We have re-constructed baselines of lobster biomass throughout human history on the archipelago using historic data, the fishery catch record and FEK to permit examination of the potential effects of MRs, effort reduction and co-management (stewardship of catch) to restore stocks. We employed a bioeconomic model using FEK, fishery catch and effort data, underwater survey information, predicted population growth and response to MR protection (no-take) to explore different management strategies and their trade-offs to restore stocks and improve catches. Our findings indicate that increased stewardship of catch coupled with 30% area closure (MR) provides the best option to reconstruct historic baselines. Based on model predictions, continued exploitation under the current management scheme is highly influenced by annual fluctuations and unsustainable. We propose a community-based co-management program to implement a MR in order to rebuild the lobster population while also providing conservation protection for marine species endemic to the Archipelago. PMID:21079761

Eddy, Tyler D; Gardner, Jonathan P A; Pérez-Matus, Alejandro

2010-01-01

327

Applying Fishers' Ecological Knowledge to Construct Past and Future Lobster Stocks in the Juan Fern?ndez Archipelago, Chile  

Science.gov (United States)

Over-exploited fisheries are a common feature of the modern world and a range of solutions including area closures (marine reserves; MRs), effort reduction, gear changes, ecosystem-based management, incentives and co-management have been suggested as techniques to rebuild over-fished populations. Historic accounts of lobster (Jasus frontalis) on the Chilean Juan Fernández Archipelago indicate a high abundance at all depths (intertidal to approximately 165 m), but presently lobsters are found almost exclusively in deeper regions of their natural distribution. Fishers' ecological knowledge (FEK) tells a story of serial depletion in lobster abundance at fishing grounds located closest to the fishing port with an associated decline in catch per unit effort (CPUE) throughout recent history. We have re-constructed baselines of lobster biomass throughout human history on the archipelago using historic data, the fishery catch record and FEK to permit examination of the potential effects of MRs, effort reduction and co-management (stewardship of catch) to restore stocks. We employed a bioeconomic model using FEK, fishery catch and effort data, underwater survey information, predicted population growth and response to MR protection (no-take) to explore different management strategies and their trade-offs to restore stocks and improve catches. Our findings indicate that increased stewardship of catch coupled with 30% area closure (MR) provides the best option to reconstruct historic baselines. Based on model predictions, continued exploitation under the current management scheme is highly influenced by annual fluctuations and unsustainable. We propose a community-based co-management program to implement a MR in order to rebuild the lobster population while also providing conservation protection for marine species endemic to the Archipelago.

Eddy, Tyler D.; Gardner, Jonathan P. A.; Perez-Matus, Alejandro

2010-01-01

328

Megachile timberlakei Cockerell (Hymenoptera, Megachilidae): Yet another bee species from the Galápagos Archipelago  

DEFF Research Database (Denmark)

We here report the leaf-cutter bee Megachile (Eutricharaea) timberlakei Cockerell 1920 (Megachilidae) as a third bee species in the Gala´pagos. The species is currently known from the Hawaiian Islands and was collected during floral inventories on San Cristo´ bal. We provide floral records as well as a diagnosis and comparative comments that will assist bee researchers to easily recognize this species from other native and adventive Megachile Latreille to the Americas. We also discuss the possible routes to the Gala´pagos.

Rasmussen, Claus; Carrión, A.

2012-01-01

329

Interpretation of the P-T-XCO2 environment during metamorphism of carbonates, central Utö, Stockholm archipelago.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis attempts to interpret the metamorphic condition and fluid composition experienced by metacarbonates on Utö, located in the south-eastern parts of the Stockholm archipelago. Utö is a part of the Svecofennian domain, and the area Bergslagen, that has hosted several mines over the last millennia. The bedrock in this area has been dated by the U-Pb technique to 1.90-1.87 Ga, placing it in the Paleoproterozoic era (Allen et al. 1996, Lundström et al. 1998). The rocks, of the studied...

Lundin, Linne?a

2013-01-01

330

Dynamics of the Canadian Arctic Archipelago throughflow: A numerical study with a finite element sea ice and ocean model  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Canadian Arctic Archipelago (CAA) connects the Arctic Ocean and Baffin Bay through narrow channels and is one of the key gateways where freshwater leaves the Arctic. It has therefore the potential to affect the deep convection in the northern North Atlantic. Representing the CAA in traditional global models still poses a challenge due to the small scale nature of the narrow passages. In this study we apply a global, multi-resolution sea ice ocean model (the Finite Element Sea ice Ocean Mo...

Wekerle, Claudia

2013-01-01

331

Helium and neon isotopes in São Miguel island basalts, Azores Archipelago: New constraints on the “low 3He” hotspot origin  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Lavas from the São Miguel Island, Azores Archipelago, have peculiar isotopic compositions, including radiogenic lead and strontium and un-radiogenic neodymium. The peculiar isotopic trend of São Miguel is evident in the lead-lead diagram where both 207Pb/204Pb and 208Pb/204Pb ratios are high for a given 206Pb/204Pb ratio compared to other oceanic island basalts. This signature is unique among OIBs and is particularly evident in the Nordeste area, the oldest part of São Miguel i...

Moreira, Manuel; Kanzari, Aisha; Madureira, Pedro

2012-01-01

332

Population structure and accompanying biota of the snail Turbo (Callopoma) funiculosus (Gastropoda: Turbinidae), on Socorro Island, Revillagigedo Archipelago, Mexico  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The porcelain snail, Turbo funiculosus, is a potential fishery resource that almost has not been studied or used commercially. In March of 1992, we sampled T. funiculosus in Bahía Binners and Bahía Blanca, Socorro Island, Revillagigedo Archipelago, using 25 m² quadrants. We found that total length varies between 3.0 and 85 mm, proportional weight between 3.0 and 228 g, and density between 6.21 and 9.87 ind/m². The largest organisms (over 50 mm) contain 30.6 % of soft parts. Porcelain snai...

2006-01-01

333

Discovering the lichen diversity of a remote tropical island: working list of species collected on Reunion (Mascarene archipelago, Indian Ocean)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

463 lichen taxa are reported from the island of Reunion (Mascarene archipelago) in the Indian Ocean. This report is based on extensive collections recently made by the authors or hosted in B and LG. A total of c. 600 species is estimated for the number of lichenized fungi present on the island; although this is a low figure for a varied tropi- cal area, this is plausible due to its small size and remoteness. The significance of the lichen diversity of the island lays in its endemics, which ne...

Se?rusiaux, Emmanue?l; Den Boom, Pieter P. G.; Brand, Maarten; Ertz, Damien; Kalb, Klaus; Magain, Nicolas; Masson, Didier; Schiefelbein, Ulf; Sipman, Harrie J. M.

2011-01-01

334

Orality and Writing on San Andrés Island  

Directory of Open Access Journals (Sweden)

Full Text Available The objective of this article is to explain the characteristics of orality and literacy amid the people of San Andrés Island, and to explore the existing relationships among them. The San Andrés people come from an oral tradition with an African origin, and at the same time, they have a literacy inheritance both from England and from Spain that has defined and characterized their orality and the uses they have given to writing. This article is based on bibliographic documentation and information collected by the author during four months of ethnographic fieldwork in San Andrés Island

Juliana Botero Mejía

2007-07-01

335

SANS studies of micellar and magnetic fluids  

International Nuclear Information System (INIS)

Small-angle neutron scattering (SANS) has proved to be an excellent technique for the study of complex fluids. This article introduces SANS from the viewpoint of such studies. The use of SANS to determine the structures of concentrated micellar fluids is then discussed within the framework of current one-component macrofluid (OCM) models, and experimental examples are taken from several contemporary studies. Finally, the discussion is extended to magnetic fluids (ferrofluids) in which the neutron magnetic interaction plays an important experimental role. 25 refs., 11 figs., 1 tab

1985-06-17

336

SANS studies of micellar and magnetic fluids  

Energy Technology Data Exchange (ETDEWEB)

Small-angle neutron scattering (SANS) has proved to be an excellent technique for the study of complex fluids. This article introduces SANS from the viewpoint of such studies. The use of SANS to determine the structures of concentrated micellar fluids is then discussed within the framework of current one-component macrofluid (OCM) models, and experimental examples are taken from several contemporary studies. Finally, the discussion is extended to magnetic fluids (ferrofluids) in which the neutron magnetic interaction plays an important experimental role. 25 refs., 11 figs., 1 tab.

Hayter, J.B,

1985-08-01

337

How Two Sides of the Atlantic Contributed to Understanding of the Global Oceans: Charles Yentsch and Andre Morel  

Science.gov (United States)

In a few short days in September of this year, the ocean color/ocean optics community lost two of the founding members of its Hall of FameCharles Yentsch and Andre Morel. Yentsch passed away at the age of 85 on September 19, and Morel passed away on September 23 at the age of 79. It might sound clich to say that someone was instrumental to the advance of science in a particular field, but in the case of Yentsch and Morel and ocean color instrumentation, such an assessment would likely be accurate. Each mans career complimented that of the other Yentsch was one of the first to make measurements of the light field of the ocean from altitude and to advocate an instrument in space that could observe the spectrum of ocean radiance Morels theoretical underpinnings established a firm foundation for the measurements such an instrument could make, allowing their successful interpretation.

Acker, James G.

2013-01-01

338

Dynamic changes in enzyme activities and phenolic content during in vitro rooting of tree peony (Paeonia suffruticosa Andr. plantlets  

Directory of Open Access Journals (Sweden)

Full Text Available The dynamic changes of phenolic content and peroxidase (POD, polyphenol oxidase (PPO, indole-3-acetic acid oxidase (IAAO and phenylalanine ammonia lyase (PAL activities were assessed during the in vitro rooting process of three cultivars of tree peony (Paeonia suffruticosa Andr.. These changes in enzyme-related activity and phenolic content__observed at the level of the whole plant__differed during the first 20 days of the rooting process in easy-to-root ‘Feng Dan Bai’ cultivar and difficult-to-root ‘Wu Long Peng Sheng’ and ‘Tai Ping Hong’ cultivars, and in most cases they were actually opposite. The ease with which ‘Feng Dan Bai’ was able to root was closely related to the activity of all four enzymes (POD, PPO, IAAO, PAL as well as to the phenolic content.

Songlin He

2011-07-01

339

Chemical ecology ofReticulitermes flavipes (Kollar) andR. virginicus (Banks) (Rhinotermitidae) : Chemistry of the soldier cephalic secretions.  

Science.gov (United States)

Reticulitermes flavipes andR. virginicus have been examined for the presence and possible defense functions of soldiers specific secretions. The cephalic extracts for soldiers of both species contained the identical two major sesquiterpenes which were absent from other castes. The sesquiterpenes have been identified as ?1-cadinene (I) and the corresponding aldehyde (II) by high-resolution nuclear magnetic resonance spectrometry using homonuclear proton decoupling and by high-resolution mass spectrometry. When groups of termite soldiers were exposed to foraging parties of the sympatric native fire ant,Solenopsis geminata, the termites utilized only mechanical defenses. No evidence was obtained to indicate that the ants had been sprayed or coated with either an irritant or toxicant, and there was no evidence that an alarm had been promulgated. PMID:24420686

Zalkow, L H; Howard, R W; Gelbaum, L T; Gordon, M M; Deutsch, H M; Blum, M S

1981-07-01

340

Vabariigi aastapäev San Franciscos / Heino Valvur ; foto: Heino Valvur  

Index Scriptorium Estoniae

veebruarikuu möödus San Franciscos Eesti Vabariigi 88. aastapäeva pühitsedes: traditsiooniliselt tähistas aastapäeva San Francisco Seenioride Klubi koosviibimisega, E.E.L.K. San Francisco koguduses peeti jumalateenistus ja koosviibimine, kus noored esitasid rahvalaule, San Francisco Eesti Selts tähistas aastapäeva 25. veebruaril aktuse ja koosviibimisega

Valvur, Heino

2006-01-01

 
 
 
 
341

Radium 228 distribution and mixing in San Nicolas and San Pedro Basins, southern California borderland  

International Nuclear Information System (INIS)

tate mass balance equations, one for 228Ra and one for heat. Upper limits for Kz are 23 cm2/s at 1,700 m in San Nicolas and 2.8 cm2/s at 850 m in San Pedro Basin. The best estimate for Kz and wz for the deeper part of the basins are: Kz = 5-17 cm2/s and wz = 50-150 m/y in San Nicolas Basin, and Kz = 1-3 cm2/s and wz = 20-50 m/y in San Pedro Basin

1990-03-15

342

75 FR 81854 - Safety Zone; New Year's Celebration for the City of San Francisco, Fireworks Display, San...  

Science.gov (United States)

...Year's Celebration for the City of San Francisco, Fireworks...Eve Celebration for the City of San Francisco Fireworks...of the Captain of the Port or her designated representative...Year's Celebration for the City of San Francisco Fireworks...assisting the Captain of the Port San Francisco...

2010-12-29

343

33 CFR 165.1187 - Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay...  

Science.gov (United States)

...Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. 165.1187 Section 165...Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco...

2009-07-01

344

Orality and Writing on San Andrés Island  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The objective of this article is to explain the characteristics of orality and literacy amid the people of San Andrés Island, and to explore the existing relationships among them. The San Andrés people come from an oral tradition with an African origin, and at the same time, they have a literacy inheritance both from England and from Spain that has defined and characterized their orality and the uses they have given to writing. This article is based on bibliographic documentation and inform...

2007-01-01

345

Double bent crystal diffractometer for SANS experiments  

International Nuclear Information System (INIS)

The medium resolution SANS diffractometer equipped with a pair of bent perfect crystals set in symmetric Bragg reflection geometry has been employed in NPI Rez in the last decade. The technical realization of a new version of the diffractometer with fully asymmetric diffraction geometry of the analyzer in combination with linear PSD was finished recently. The present paper provides a methodological comparison of both concepts as well as an example of medium resolution SANS experiment on a Vycor glass. (orig.)

1994-01-08

346

Cacao use and the San Lorenzo Olmec  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mesoamerican peoples had a long history of cacao use—spanning more than 34 centuries—as confirmed by previous identification of cacao residues on archaeological pottery from Paso de la Amada on the Pacific Coast and the Olmec site of El Manatí on the Gulf Coast. Until now, comparable evidence from San Lorenzo, the premier Olmec capital, was lacking. The present study of theobromine residues confirms the continuous presence and use of cacao products at San Lorenzo between 1800 and 1000 BC...

Powis, Terry G.; Cyphers, Ann; Gaikwad, Nilesh W.; Grivetti, Louis; Cheong, Kong

2011-01-01

347

Two contemporaneous magma series on Mayotte Island, Comores Archipelago, Indian Ocean  

Science.gov (United States)

The Comores archipelago is comprised of four islands all of which are characterised by alkaline lavas. On Mayotte, two clearly separate magma series can be defined. The origin of such contemporaneous but compositionally different series in several oceanic islands is still a subject of a debate. The mineralogy and geographically locations allow to identify three different lava groups. (1) The north lava group composed of relatively homogeneous alkaline basalts. (2) The north-east group comprised of tephrites to trachy-phonolites series and (3) the south lava group is made up of a nephelinite to phonolite series. Ol+cpx+plag are the main phenocryst phases in the north and north-east lavas, whereas the south lava series have ol+cpx+nepheline as phenocrysts. Composition of clinopyroxene is variable with diopside compositions in the north alkaline basalts and tephrites, and diopside to aegerine compositions in the south nephelinite lavas. A regular enrichment of Na content in plagioclases phenocrysts and groundmass crystals from the lavas of the north group to those from the north-east is observed. In contrast, alkali-feldspars are present in the south lavas. The crystallisation of clinopyroxene instead of plagioclase after olivine fractionation in the north lavas suggests that fractionation occurred at pressure between 0.4 and 0.9 GPa, which is consistent with the presence of Na-rich cpx-cores in all lava groups. The major element composition of lavas from Mayotte allow to define two distinct magma series: a moderately undersaturated and a highly undersaturated series. The moderately undersaturated series is composed of the north alkali basalt and the north-east tephrite lavas, whereas the south nephlinites represent the highly undersaturated series. Compilation of published age determinations and new Ar/Ar datings suggest that the north lavas erupted from 7.7 Ma to 4.4 Ma, followed by the north-east lavas erupted from 4.7 Ma to 1.4 Ma. The south lavas erupted contemporaneously from 7.7 Ma to 2.7 Ma. Basic volcanic activity resumed in the North between 2.9 Ma and 1.2 Ma, and from 2 Ma to 1.5 Ma in the South. Taken together, these preliminary petrological and geochemical results suggest that Mayotte island was constructed by two volcanoes. These volcanoes were active at the same time producing two distinct magma series. Migration of the activity of the northern volcano to the east occurred with emission of increasingly differentiated lavas with time. Depth of crystallisation can be evaluated at more than 15 km for alkaline basalt and tephrite lavas, which corresponds to the mantle-crust interface.

Debeuf, D.; Bachèlery, P.; Sigmarsson, O.

2003-04-01

348

[Hurricane Paloma's effects on seagrasses along Jardines de la Reina Archipelago, Cuba].  

Science.gov (United States)

Seagrasses are one of the most important coastal ecosystems since they promote organic matter flow, nutrient cycling, food availability and refuge. Until now, reports on damages caused by storms and hurricanes on seagrass beds are uncommon and highly variable. The seagrass meadows of the East end of Jardines de la Reina archipelago were surveyed from Nov. 29th to Dec. 5th of 2008, in order to determinate the effects from the passing of Hurricane Paloma: a category three storm on the Saffir-Simpsom scale. A rapid field assessment of the affected areas was carried out using the manta tow technique. In six sites, seagrass was quantitatively evaluated using a 15cm diameter core (four sampling units per site) and shoot density was calculated. Remote sensing techniques were used to estimate seagrass cover. To estimate the percentage of affected areas, a Region of Interest (ROI) was first created over a Landsat image. The percentage of seagrass affected within the ROI was estimated through direct georeferentiation of the contours of the damaged area and with a comparison to the total seagrass extension. To find possible explanations for damages, a false colour image was created using the near infrared band, to highlight the differences between emerged and submerged zones. The direction of winds was estimated using ArcGis 9.2 creating circular buffers, from the centre of the hurricane and generating lines tangent to the buffers. Seagrass in the region was dominated by the angiosperm Thalassia testudinum. Regional mean density was 1 321 +/- 721 shoots/m2, a value regarded as high for the Caribbean area. Seagrass meadows were partly affected by sediment accumulation on the shoots of T. testudinum and uprooting rhizomes. The 7.6 km2 disturbed area represented 1% of the total seagrass area. Other sites, closer to the centre of the hurricane, did not show any damages on the marine vegetation. The keys location with respect to the hurricane track was the most likely cause of the effects. To the North of the affected area there is an opening among the keys where the generation ofwaves, currents and turbulence could have occurred. Three years after the hurricane event, both vegetation cover loss and silt re-colonization by macroalgae species were observed within the affected area, by showing a patchily-vegetated landscape. This site is currently undergoing a temporal succession whose assessment demands a monitoring scheme, that will provide interesting information to document its future evolution and responsiveness against upcoming natural or anthropogenic events. PMID:24027933

Guimarais, Mayrene; Zúñiga, Adán; Pina, Fabián; Matos, Felipe

2013-09-01

349

Suboxic dolomite formation linked to the sedimentary Mn cycle, Archipelago Los Roques, Venezuela  

Science.gov (United States)

The preferential formation of Ca-rich dolomite precursors in modern peritidal environments has been associated with the degradation of buried microbial mats, with complexation of Ca and Mg cations by extracellular polysaccharides, and alkalinity generation, mostly through bacterial sulfate reduction. However, it remains unclear why Ca-dolomite would not occur in suboxic sediments where bacterial Mn(IV) and/or Fe(III) reduction are important sources of alkalinity, and the role, if any, of Fe- and Mn-recycling in its diagenetic stabilization to more stoichiometric dolomite is unknown. In a shoaling-upward parasequence in the Archipelago Los Roques, Venezuela, an abundance of Ca-dolomite coincides with a relative decrease in bulk-sediment iron concentrations. These sediments were analyzed with multiple analytical tools, including EPMA, ICP-MS, synchrotron-based XRF, XRD, and spatially resolved XANES. Results demonstrate that the distribution of spheroidal aggregates of nanometer-scale Ca-rich dolomite rhombohedra is linked with interstitial elemental sulfur and manganese accumulations, with Mn occurring in several oxidation states (Fig. 1). Based on our observations at this novel dolomite-forming site, we suggest that in peritidal settings the burial of metal-reactive microbial mats act as a barrier capable of concentrating dissolved reactive species that promote greater sediment residence times in suboxic (manganic) zones, where the recycling of Mn not only plays an important role in the remineralization of organic matter, but also sustains elevated alkalinity and dissolved pore water sulfide concentrations. The last two effects have been previously suggested to promote Mg dehydration, the major kinetic barrier to dolomite nucleation. Figure 1. Normalized Mn K-edge merged spectra of a 5 x 5 ?m analytical area bearing dolomite cements. A: The K-edge exhibits two main features at about 6554 and 6558 eV. B: Intermediate Mn (III) is identified by the positive slope of the first derivative of the XANES spectra in the interval 6547.9-6549.0 eV. C: A least-squares fitting of the spectra was performed to quantify the Mn species present. The spectra can be fitted with four model compounds, Mn2O3 (52.5 × 5.2%), MnCO3 (22.2 × 1.3%), gamma-MnOOH (15.0 × 5.0%), and Mn3O4 (10.3 × 7.7%), suggesting that these phases coexist in the dolomite-bearing microcrystalline cements.

Petrash, D.; Lalonde, S.; Gonzalez, G.; Gingras, M.; Konhauser, K.

2013-12-01

350

Islas Marias Archipelago, Mexico. A Missing Piece to Reconstruct the Paleoposition of Baja California  

Science.gov (United States)

Paleopositions for southern Baja California peninsula have yielded controversial models over the past 30 years. Mainly based on paleomagnetic data many hypotheses place Baja at lower paleolatitudes in front of southern Mexico or Central America with subsequent northward translations. Other models suggest minor, if any, northward displacements with respect to continental Mexico combined with clockwise rotations. Lithological, geochemical, and geochronological similarities for southern Baja California and Puerto Vallarta (western Mexico Pacific margin) igneous rocks seem to confirm the latter model. To further prove this model we have mapped and collected rocks from Maria Madre, the largest island of the Islas Marias archipelago, located in the mouth of the Gulf of California. In an area of only 145 square kilometers, metamorphic basements rocks (ortho and migmatitic gneisses), highly deformed metasediments, granitoids, acid to intermediate volcanic sequences, and a cover with gently folded marine sediments are exposed. The basement complex with gneisses and metasediments, including garnet-bearing paragneiss and calc silicates, as well as the granodioritic-tonalitic intrusives display an extraordinary accordance with similar units observed in the Los Cabos Block (LCB) of Baja California Sur. Furthermore, U-Pb zircon ages of 162 and 170 Ma for the basement gneisses and of 80 Ma for the granitoids have been reported also from the LCB. Additionally, upper Cretaceous intrusive ages are well known from the Puerto Vallarta batholith in Jalisco and Nayarit, mainland Mexico. Geochemical and isotopic data as well as Nd model ages confirm a magmatic consanguinity of LCB, Islas Marias, and Puerto Vallarta granitoids. The volcanic units of Maria Madre Island include ignimbrites and effusive dacitic-rhyolithic rocks, which can be correlated to the Sierra Madre Occidental province and the Comundú Formation of Baja California. Age determinations are under work to confirm this hypothesis. Finally, the sedimentary cover record several subsidence and uplift events, possibly related to the opening of the Gulf of California. Micropaleontological investigations on Neogene deposits give evidence for an above sea level position of the islands since the late Pleistocene. In summary, our new lithological, geochemical, and geochronological investigations on the Isla María Madre rock suite confirm a common magmatic arc parenthood of these units with respect to mainland Mexico at latitudes of Puerto Vallarta and with the LCB of Baja California Sur. Large paleolatitudal displacements of Baja can be discarded from these results.

Schaaf, P. E.; Pompa, V.; Hernandez, T.; Weber, B.; Solis, G.; Villanueva, D.; Perez-Venzor, J.

2011-12-01

351

Population structure and accompanying biota of the snail Turbo (Callopoma funiculosus (Gastropoda: Turbinidae, on Socorro Island, Revillagigedo Archipelago, Mexico  

Directory of Open Access Journals (Sweden)

Full Text Available The porcelain snail, Turbo funiculosus, is a potential fishery resource that almost has not been studied or used commercially. In March of 1992, we sampled T. funiculosus in Bahía Binners and Bahía Blanca, Socorro Island, Revillagigedo Archipelago, using 25 m² quadrants. We found that total length varies between 3.0 and 85 mm, proportional weight between 3.0 and 228 g, and density between 6.21 and 9.87 ind/m². The largest organisms (over 50 mm contain 30.6 % of soft parts. Porcelain snail populations remain unexploited on Revillagedo Archipelago and could be a potential resource under an adequate management strategy. Rev. Biol. Trop. 54 (4: 1079-1084. Epub 2006 Dec. 15.El caracol porcelana, Turbo funiculosus, es un recurso pesquero potencial que casi no ha sido estudiado ni se ha utilizado comercialmente. En marzo de 1992, se realizó un muestreo de T. funiculosus en Bahía Binners y Bahía Blanca, isla Socorro, archipiélago Revillagigedo, empleando cuadrantes de 25 m2. Se encontraron variaciones en la longitud total entre 3.0 y 85 mm, el peso proporcional entre 3.0 y 228 g, y la densidad entre 6.21 y 9.87 ind/m2. Los organismos de mayor tamaño (más de 50 mm contienen 30.6 % de partes suaves. Las poblaciones del caracol porcelana siguen siendo inexplotadas en el archipiélago Revillagedo y podrían ser un recurso potencial de la industria pesquera bajo un adecuado plan de manejo.

Oscar E Holguin Quiñones

2006-12-01

352

Microsatellite variation suggests a recent fine-scale population structure of Drosophila sechellia, a species endemic of the Seychelles archipelago.  

Science.gov (United States)

Drosophila sechellia is closely related to the cosmopolitan and widespread model species, D. simulans. This species, endemic to the Seychelles archipelago, is specialized on the fruits of Morinda citrifolia, and harbours the lowest overall genetic diversity compared to other species of Drosophila. This low diversity is associated with a small population size. In addition, no obvious population structure has been evidenced so far across islands of the Seychelles archipelago. Here, a microsatellite panel of 17 loci in ten populations from nine islands of the Seychelles was used to assess the effect of the D. sechellia's fragmented distribution on the fine-scale population genetic structure, the migration pattern, as well as on the demography of the species. Contrary to previous results, also based on microsatellites, no evidence for population contraction in D. sechellia was found. The results confirm previous studies based on gene sequence polymorphism that showed a long-term stable population size for this species. Interestingly, a pattern of Isolation By Distance which had not been described yet in D. sechellia was found, with evidence of first-generation migrants between some neighbouring islands. Bayesian structuring algorithm results were consistent with a split of D. sechellia into two main groups of populations: Silhouette/Mahé versus all the other islands. Thus, microsatellites suggest that variability in D. sechellia is most likely explained by local genetic exchanges between neighbouring islands that have recently resulted in slight differentiation of the two largest island populations from all the others. PMID:21761131

Legrand, Delphine; Vautrin, Dominique; Lachaise, Daniel; Cariou, Marie-Louise

2011-07-01

353

Absolute palaeointensity of Oligocene (28-30 Ma) lava flows from the Kerguelen Archipelago (southern Indian Ocean)  

CERN Document Server

We report palaeointensity estimates obtained from three Oligocene volcanic sections from the Kerguelen Archipelago (Mont des Ruches, Mont des Tempetes, and Mont Rabouillere). Of 402 available samples, 102 were suitable for a palaeofield strength determination after a preliminary selection, among which 49 provide a reliable estimate. Application of strict a posteriori criteria make us confident about the quality of the 12 new mean-flow determinations, which are the first reliable data available for the Kerguelen Archipelago. The Virtual Dipole Moments (VDM) calculated for these flows vary from 2.78 to 9.47 10e22 Am2 with an arithmetic mean value of 6.15+-2.1 10e22 Am2. Compilation of these results with a selection of the 2002 updated IAGA palaeointensity database lead to a higher (5.4+-2.3 10e22 Am2) Oligocene mean VDM than previously reported, identical to the 5.5+-2.4 10e22 Am2 mean VDM obtained for the 0.3-5 Ma time window. However, these Kerguelen palaeointensity estimates represent half of the reliable Ol...

Plenier, G; Coe, R S; Perrin, M; Plenier, Guillaume; Camps, Pierre; Coe, Robert S.; Proxy, Mireille Perrin

2003-01-01

354

Musschia isambertoi M. Seq., R. Jardim, M. Silva & L. Carvalho (Campanulaceae, a new species from the Madeira Archipelago (Portugal  

Directory of Open Access Journals (Sweden)

Full Text Available A new species of Musschia Dumort. (Campanulaceae, endemic from Madeira Archipelago (Portugal, is described as Musschia isambertoi M. Seq., R. Jardim, M. Silva & L. Carvalho. Both vegetative and reproductive structures have been studied and are remarkably distinct from the recognized species [M. aurea (L. f. Dumort. and M. wollastonii Lowe]. A full description and a diagnosis are included as well as line art, color drawings and pictures. Diagnostic characters are discussed and compared with those of the closely related species. The new species has a very restricted distribution occurring in two isolated populations in the Deserta Grande Island (Madeira Archipelago, Portugal. Nomenclatural aspects on the genus Musschia Dumort. are discussed and a diagnostic key for the species is also includedSe describe una nueva especie de Musschia Dumort. (Campanulaceae, endémica del archipiélago de Madeira (Portugal, Musschia isambertoi M. Seq., R. Jardim, M. Silva & L. Carvalho. La morfología de las estructuras vegetativas y florales estudiadas es claramente distinta de la de las otras dos especies conocidas, Musschia aurea (L. f Dumort. y Musschia wollastonii Lowe. Se incluyen: una descripción y una diagnosis, ilustradas por imágenes, una lámina en blanco y negro y una en color. Se comparan y discuten los caracteres diagnósticos dentro del conjunto de especies del género. La nueva especie es endémica de la isla Deserta Grande (archipiélago de Madeira, Portugal. Se discuten aspectos nomenclaturales y se incluye una clave de las especies conocidas para Madeira.

Menezes de Sequeira, Miguel

2007-12-01

355

The San Andreas Fault 'Supersite' (Invited)  

Science.gov (United States)

An expanded and permanent Supersite has been proposed to the Committee on Earth Observation Satellites (CEOS) for the San Andreas Fault system, based upon the successful initial Group on Earth Observations (GEO) Geohazard Supersite for the Los Angeles region from 2009-2013. As justification for the comprehensive San Andreas Supersite, consider the earthquake history of California, in particular the devastating M 7.8 San Francisco earthquake of 1906, which occurred along the San Andreas Fault, as did an earthquake of similar magnitude in 1857 in southern California. Los Angeles was only a small town then, but now the risk exposure has increased for both of California's megacities. Between the San Francisco and Los Angeles urban areas lies a section of the San Andreas Fault known to creep continually, so it has relatively less earthquake hazard. It used to be thought of as capable of stopping earthquakes entering it from either direction. Transitional behavior at either end of the creeping section is known to display a full range of seismic to aseismic slip events and accompanying seismicity and strain transient events. Because the occurrence of creep events is well documented by instrumental networks such as CISN and PBO, the San Andreas Supersite can be expected to be especially effective. A good baseline level of geodetic data regarding past events and strain accumulation and release exists. Many prior publications regarding the occurrence of geophysical phenomena along the San Andreas Fault system mean that in order to make novel contributions, state-of-the-art science will be required within this Supersite region. In more recent years, the 1989 Loma Prieta earthquake struck adjacent to the San Andreas Fault and caused the most damage along the western side of the San Francisco Bay Area. More recently, the concern has focused on the potential for future events along the Hayward Fault along the eastern side of San Francisco Bay. In Southern California, earthquakes struck in 1992 (Landers), 1994 (Northridge) and 1999 (Hector Mine) as well as the 2010 El Mayor - Cucapah (EM-C) earthquake (just south of the US-Mexico border). Of these four notable events, all produced extensive surface faulting except for the 1994 Northridge event, which was close to the Los Angeles urban area on a buried thrust fault. Northridge caused by far the most destruction, topping $20B (US) and resulting in 57 fatalities due to its location under an urban area. The Landers, Hector Mine and EM-C events occurred in desert areas away from major urban centers, and each proved to be a new and unique test-bed for making rapid progress in earthquake science and creative use of geodetic imagery. InSAR studies were linked to GPS deformation and mapping of surface ruptures and seismicity in a series of important papers about these earthquakes. The hazard in California remains extremely high, with tens of millions of people living in close proximity to the San Andreas Fault system as it runs past both San Francisco and Los Angeles. Dense in-situ networks of seismic and geodetic instruments are continually used for research and earthquake monitoring, as well as development of an earthquake early warning capability. Principles of peer review from funding agencies and open data availability will be observed for all data. For all of these reasons, the San Andreas Fault system is highly appropriate for consideration as a world-class permanent Supersite in the GEO framework.

Hudnut, K. W.

2013-12-01

356

Particularidades del escurrimiento de la cuenca cubana San Juan / Runoff particularities of Cuban basin San Juan  

Scientific Electronic Library Online (English)

Full Text Available SciELO Cuba | Language: Spanish Abstract in spanish La cuenca San Juan, dividida en las subcuencas San Juan, San Agustín y Cañas, difiere totalmente de otras cuencas de la provincia. Los altos valores de los módulos del escurrimiento medio de los ríos y sus distribuciones dentro del año e hiperanual confirman esta particularidad, la cual fue comproba [...] da con las investigaciones complementarias realizadas durante el periodo seco del 2011. El análisis del comportamiento del escurrimiento de la subcuenca San Agustín-Cañas, incluyendo el funcionamiento del trasvase MatanzasMayabeque, conllevó a los decisores a desarrollar un programa de gestión integrada de los recursos hídricos de esta cuenca. Abstract in english The San Juan basin, divided into sub-basins San Juan, San Agustín and Cañas, is completely different from other basins in the province. The high modular values of average river runoff, its within-year distribution and its overyear distribution confirm this peculiarity, which was checked with additio [...] nal research conducted during the dry period of 2011. The behavior of the subbasin runoff of San Agustín-Cañas, including the operation of the water diversion canal MatanzasMayabeque, led the decision makers to develop an integrated water resources management program for this basin.

Katia Luisa, Rosario Rodríguez; Viera, Petrova Nicolaevna; Alberto, Cuéllar Valenzuela; Dailene, Acosta Freyre; Armando, Hernández Valdés; Haydée, Llanusa Ruiz.

357

78 FR 19103 - Safety Zone; Spanish Navy School Ship San Sebastian El Cano Escort; Bahia de San Juan; San Juan, PR  

Science.gov (United States)

...School Ship San Sebastian El Cano, a public vessel, and during...School Ship San Sebastian El Cano. The inbound escort is scheduled...School Ship San Sebastian El Cano and 21 gun salute. The outbound...rule is effective from 8 a.m. on April 6, 2013, until...

2013-03-29

358

Perspective View, San Andreas Fault  

Science.gov (United States)

The prominent linear feature straight down the center of this perspective view is the San Andreas Fault in an image created with data from NASA's shuttle Radar Topography Mission (SRTM), which will be used by geologists studying fault dynamics and landforms resulting from active tectonics. This segment of the fault lies west of the city of Palmdale, California, about 100 kilometers (about 60 miles) northwest of Los Angeles. The fault is the active tectonic boundary between the North American plate on the right, and the Pacific plate on the left. Relative to each other, the Pacific plate is moving away from the viewer and the North American plate is moving toward the viewer along what geologists call a right lateral strike-slip fault. This area is at the junction of two large mountain ranges, the San Gabriel Mountains on the left and the Tehachapi Mountains on the right. Quail Lake Reservoir sits in the topographic depression created by past movement along the fault. Interstate 5 is the prominent linear feature starting at the left edge of the image and continuing into the fault zone, passing eventually over Tejon Pass into the Central Valley, visible at the upper left.This type of display adds the important dimension of elevation to the study of land use and environmental processes as observed in satellite images. The perspective view was created by draping a Landsat satellite image over an SRTM elevation model. Topography is exaggerated 1.5 times vertically. The Landsat image was provided by the United States Geological Survey's Earth Resources Observations Systems (EROS) Data Center, Sioux Falls, South Dakota.Elevation data used in this image was acquired by the Shuttle Radar Topography Mission (SRTM) aboard the Space Shuttle Endeavour, launched on February 11,2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense (DoD), and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise,Washington, DC.Size: Varies in a perspective view Location: 34.78 deg. North lat., 118.75 deg. West lon. Orientation: Looking Northwest Original Data Resolution: SRTM and Landsat: 30 meters (99 feet) Date Acquired: February 16, 2000

2000-01-01

359

Compact High Resolution SANS using very cold neutrons (VCN-SANS)  

International Nuclear Information System (INIS)

SANS (Small Angle Neutron Scattering) is a popular method for elucidation of nano-scale structures. However science continually challenges SANS for higher performance, prompting exploration of ever-more exotic and expensive technologies. We propose a compact high resolution SANS, using very cold neutrons, magnetic focusing lens and a wide-angle spherical detector. This system will compete with modern 40 m pinhole SANS in one tenth of the length, matching minimum Q, Q-resolution and dynamic range. It will also probe dynamics using the MIEZE method. Our prototype lens (a rotating permanent-magnet sextupole), focuses a pulsed neutron beam over 3-5 nm wavelength and has measured SANS from micelles and polymer blends. (authors)

2010-09-15

360

Are There Spatial or Temporal Patterns to Holocene Explosive Eruptions in the Aleutian Archipelago? A Work in Progress  

Science.gov (United States)

By examining the existing geological and archeological record of radiocarbon dated Aleutian tephras of the last 12,000 years, this study sought to determine whether there were spatial or temporal patterns of explosive eruptive activity. The Holocene tephra record has important implications because two episodes of migration and colonization by humans of distinct cultures established the Unangan/Aleut peoples of the Aleutian Islands concurrently with the volcanic activity. From Aniakchak Volcano on the Alaska Peninsula to the Andreanof Islands (158 to 178° W longitude), 55 distinct tephras represent significant explosive eruptions of the last 12,000 years. Initial results suggest that the Andreanof and Fox Island regions of the archipelago have had frequent explosive eruptions whereas the Islands of Four Mountains, Rat, and Near Island regions have apparently had little or no eruptive activity. However, one clear result of the investigation is that sampling bias strongly influences the apparent spatial patterns. For example field reconnaissance in the Islands of Four Mountains documents two Holocene calderas and a minimum of 20 undated tephras in addition to the large ignimbrites. Only the lack of significant explosive activity in the Near Islands seems a valid spatial result as archeological excavations and geologic reports failed to document Holocene tephras there. An intriguing preliminary temporal pattern is the apparent absence of large explosive eruptions across the archipelago from ca. 4,800 to 6,000 yBP. To test the validity of apparent patterns, a statistical treatment of the compiled data grappled with the sampling bias by considering three confounding variables: larger island size allows more opportunity for geologic preservation of tephras; larger magnitude eruption promotes tephra preservation by creating thicker and more widespread deposits; the comprehensiveness of the tephra sampling of each volcano and island varies widely because of logistical and financial limitations. This initial statistical investigation proposes variables to mitigate the effects of sampling bias and makes recommendations for sampling strategies to enable statistically valid examination of research questions. Further, though caldera-forming eruptions occurred throughout the Holocene - and several remain undated - four of six dated eruptions occurred throughout the archipelago between 8,000-9,100 yBP, a period coinciding with some of the earliest human occupation (Early Anangula Phase) of the eastern Aleutians.

Martin, C.; Nicolaysen, K. P.; McConville, K.; Hatfield, V.; West, D.

2013-12-01

 
 
 
 
361

An assessment of the record in compositional variations from mantle source to magmatism at East Island, Crozet archipelago  

Science.gov (United States)

The Crozet archipelago, located midway between Madagascar and Antarctica, constitutes the emerged part of the easternmost bank of the Crozet plateau, which lies upon upper Cretaceous oceanic seafloor derived from the Southeast Indian Ridge. It forms an elongated chain of five islands and islets, divided into two groups: an older eastern island group (scale volcanic landmasses (i.e. East and Possession islands) and a younger western one (aerial eruptive history involving very small melting degrees of a garnet-phlogopite bearing, enriched mantle source, as to be expected to occur beneath an old tectonic plate where the bottom of the lithosphere is likely near the garnet to spinel transition. We will present new geodynamical and geochemical constraints on the mechanisms of formation for such garnet-phlogopite-bearing sources in oceanic island environments.

Meyzen, C. M.; Marzoli, A.; Bellieni, G.

2013-12-01

362

Intermediate tectonic pattern and hydrodynamic process deduced from audiomagnetotelluric investigations on the volcanic island of Mayotte (Comores Archipelago)  

Science.gov (United States)

Audiomagnetotelluric soundings were carried out on the volcanic island of Mayotte (Comores Archipelago). The field method and data are described and discussed. All the sounding cross sections show coherent curves with a high conductive layer between 100 and 200 m. depth. This layer is considered to be a fluctuating water table zone correlated to yearly climatic changes under tropical weathering processes. Dipping and sudden level variations are linked to tectonic volcanic features and are the visualization of a block faulting system of the primitive basaltic shield, a consequence of a distensive phase possibly connected with the collapse of the western flank of the volcano. Piano-key panels are the typical sub-surface style and the guide-line for any water prospection on the volcano and the activity of the island water transfer system.

Ballestracci, Régis; Nougier, Jacques; Benderitter, Yves

1985-05-01

363

Relationship between benthic foraminiferal assemblages and environmental factors in atoll lagoons of the central Tuamotu Archipelago (French Polynesia)  

Science.gov (United States)

Foraminiferal assemblages were studied in ten atoll lagoons in the central Tuamotu Archipelago, French Polynesia, in order to determine which environmental factors influence their distribution. Among geomorphological conditions, the degree of aperture has a major influence on lagoonal communities. Cluster and factor analyses reveal a clear contrast between the foraminiferal associations located in the peripheral and central areas of the lagoons, showing the effect of the vicinity of coral reef, and a limited post-mortem transport of species from the periphery toward the center of the lagoons. The rarity of planktonic species indicates limited penetration of the lagoon by planktonic forms, including planktonic stages of benthic colonizers. Colonization of these remote lagoons, even those with a high degree of aperture, may thus require long periods. Therefore, the Holocene transgression that flooded the deeper lagoons before the shallower ones, allowing a longer colonization period, may have contributed to the higher species richness of foraminifera within them.

Bicchi, E.; Debenay, J.-P.; Pagès, J.

2002-09-01

364

78 FR 54487 - YP Western Directory LLC, San Francisco Division, Publishing Operations Group, YP Subsidiary...  

Science.gov (United States)

...326; TA-W-82,326A] YP Western Directory LLC, San Francisco Division, Publishing...San Francisco, California; YP Western Directory LLC, San Francisco Division, Publishing...applicable to workers of YP Western Directory LLC, San Francisco Division,...

2013-09-04

365

Population structure and accompanying biota of the snail Turbo (Callopoma) funiculosus (Gastropoda: Turbinidae), on Socorro Island, Revillagigedo Archipelago, Mexico  

Scientific Electronic Library Online (English)

Full Text Available SciELO Costa Rica | Language: English Abstract in spanish El caracol porcelana, Turbo funiculosus, es un recurso pesquero potencial que casi no ha sido estudiado ni se ha utilizado comercialmente. En marzo de 1992, se realizó un muestreo de T. funiculosus en Bahía Binners y Bahía Blanca, isla Socorro, archipiélago Revillagigedo, empleando cuadrantes de 25 [...] m2. Se encontraron variaciones en la longitud total entre 3.0 y 85 mm, el peso proporcional entre 3.0 y 228 g, y la densidad entre 6.21 y 9.87 ind/m2. Los organismos de mayor tamaño (más de 50 mm) contienen 30.6 % de partes suaves. Las poblaciones del caracol porcelana siguen siendo inexplotadas en el archipiélago Revillagedo y podrían ser un recurso potencial de la industria pesquera bajo un adecuado plan de manejo. Abstract in english The porcelain snail, Turbo funiculosus, is a potential fishery resource that almost has not been studied or used commercially. In March of 1992, we sampled T. funiculosus in Bahía Binners and Bahía Blanca, Socorro Island, Revillagigedo Archipelago, using 25 m² quadrants. We found that total length v [...] aries between 3.0 and 85 mm, proportional weight between 3.0 and 228 g, and density between 6.21 and 9.87 ind/m². The largest organisms (over 50 mm) contain 30.6 % of soft parts. Porcelain snail populations remain unexploited on Revillagedo Archipelago and could be a potential resource under an adequate management strategy. Rev. Biol. Trop. 54 (4): 1079-1084. Epub 2006 Dec. 15.

Oscar E, Holguin Quiñones; Jesús E, Michel-Morfín.

366

Sea-ice crossings by caribou in the south-central Canadian Arctic Archipelago and their ecological importance  

Directory of Open Access Journals (Sweden)

Full Text Available The islands of the Canadian Arctic Archipelago lie immediately north of mainland North America in the Arctic Ocean. They are surrounded by ice for most of each year. Caribou (Rangifer tarandus cross the sea ice in seasonal migrations among the islands and between the mainland and Arctic Islands. We compiled observations of 1272 discrete caribou crossings on the sea ice of northeastern Franklin Strait, Bellot Strait, Peel Sound and Baring Channel in the south-central Canadian Arctic Archipelago during four May—June search periods from 1977 to 1980. We clustered the 850 caribou trails found on the sea ice of northeastern Franklin Strait and on outer Peel Sound as 73 sea-ice crossing sites. We investigated whether caribou at the origin of a sea-ice crossing site could see land on the opposite side at the potential terminus. We measured the straight-line distance from where the caribou first came onto the ice (origin to the first possible landfall (potential terminus. Potential termini were geodetically visible to caribou from elevated terrain near 96% of the origins of the 73 sea-ice crossing sites and still visible at sea-level at the origins on 68%. Caribou are able to take advantage of seasonal use of all of the islands and the peninsula by making sea-ice crossings, thereby helping to increase the magnitudes and durations of population highs and reduce their lows. Knowledge of these alternative pat¬terns of use made possible by sea-ice crossings is necessary to fully understand the population dynamics of these caribou and the importance of possible future changes in ice cover.

Samuel J. Barry

2005-05-01

367

Access USGS: San Francisco Bay and Delta  

Science.gov (United States)

The San Francisco Bay and Delta Ecosystem Program of the US Geological Survey has been underway since 1995. This Webpage offers a host of information on USGS research in the San Francisco Bay and Delta regions (see Overview). Organized by subject area, the site features a new Water Information section in addition to sections describing research on biology (exotic species, primary production), wetlands (change and restoration), hazards (coastal erosion, landslides, earthquakes), and land use (urban growth). In addition, the site provides real-time data, geologic maps, and digital maps (topos, aerial photos, and elevations). A collection of links and a What's New section round out the site.

368

Lower San Fernando corrugated metal pipe failure  

Energy Technology Data Exchange (ETDEWEB)

During the January 17, 1994, Northridge earthquake, a 2.4 m diameter corrugated metal pipe was subjected to 90 m of extensive lateral crushing failure at the Lower San Fernando Dam. The dam and outlet works were reconstructed after the 1971 San Fernando Earthquake. In 1994, the dam underwent liquefaction upstream of the reconstructed berm. The pipe collapsed on the west side of the liquefied zone and a large sinkhole formed over the drain line. The failure of this drain line provides a unique opportunity to study the seismic response of buried drains and culverts.

Bardet, J.P. [Univ. of Southern California, Los Angeles, CA (United States); Davis, C.A. [Los Angeles Dept. of Water and Power, CA (United States)

1995-12-31

369

Urban Stormwater Management and Technology: Case Study in San Francisco.  

Science.gov (United States)

This report is the fourth in a series on urban stormwater and combined sewer overflow (CSO) management. It presents San Francisco's experience with the planning and design of CSO control and treatment facilities. The development of the San Francisco combi...

J. A. Lager R. K. Advani E. M. Gowen

1981-01-01

370

33 CFR 110.224 - San Francisco Bay, San Pablo Bay, Carquinez Strait, Suisun Bay, Sacramento River, San Joaquin...  

Science.gov (United States)

...anchoring. (2) No vessel may permanently moor in areas adjacent to the San Joaquin River...Government chart. (5) No vessel may moor, anchor, or tie up to any pier, wharf...supervision may go alongside or in any manner moor to any Government-owned vessel,...

2010-07-01

371

Radar image San Francisco Bay Area, California  

Science.gov (United States)

The San Francisco Bay Area in California and its surroundings are shown in this radar image from the Shuttle Radar Topography Mission (SRTM). On this image, smooth areas, such as the bay, lakes, roads and airport runways appear dark, while areas with buildings and trees appear bright. Downtown San Francisco is at the center and the city of Oakland is at the right across the San Francisco Bay. Some city areas, such as the South of Market district in San Francisco, appear bright due to the alignment of streets and buildings with respect to the incoming radar beam. Three of the bridges spanning the Bay are seen in this image. The Bay Bridge is in the center and extends from the city of San Francisco to Yerba Buena and Treasure Islands, and from there to Oakland. The Golden Gate Bridge is to the left and extends from San Francisco to Sausalito. The Richmond-San Rafael Bridge is in the upper right and extends from San Rafael to Richmond. Angel Island is the large island east of the Golden Gate Bridge, and lies north of the much smaller Alcatraz Island. The Alameda Naval Air Station is seen just below the Bay Bridge at the center of the image. Two major faults bounding the San Francisco-Oakland urban areas are visible on this image. The San Andreas fault, on the San Francisco peninsula, is seen on the left side of the image. The fault trace is the straight feature filled with linear reservoirs, which appear dark. The Hayward fault is the straight feature on the right side of the image between the urban areas and the hillier terrain to the east.This radar image was acquired by just one of SRTM's two antennas and, consequently, does not show topographic data, but only the strength of the radar signal reflected from the ground. This signal, known as radar backscatter, provides insight into the nature of the surface, including its roughness, vegetation cover and urbanization. The overall faint striping pattern in the images is a data processing artifact due to the preliminary nature of this image product. These artifacts will be removed after further data processing.This image was acquired by the Shuttle Radar Topography Mission (SRTM) aboard the Space Shuttle Endeavour, launched on February 11,2000. SRTM uses the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. The mission is designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense (DoD), and the German and Italian Space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise, Washington, DC.Size: 38 km (24 miles) by 71 km (44 miles) Location: 37.7 deg. North lat., 122.2 deg. West lon. Orientation: North to the upper right Original Data Resolution: 30 meters (99 feet) Date Acquired: February 16, 2000

2000-01-01

372

76 FR 15216 - Security Zones; Cruise Ships, Port of San Diego, CA  

Science.gov (United States)

...San Diego port area landward of the sea buoys bounding the Port of San Diego. This final...the San Diego port area inside the sea buoys bounding the Port of San Diego would provide...the San Diego port area inside the sea buoys bounding the Port of San Diego....

2011-03-21

373

75 FR 82243 - Security Zones; Moored Cruise Ships, Port of San Diego, CA  

Science.gov (United States)

...the San Diego port area inside the sea buoys bounding the Port of San Diego. This temporary...the San Diego port area inside the sea buoys bounding the Port of San Diego would provide...the San Diego port area inside the sea buoys bounding the Port of San Diego....

2010-12-30

374

76 FR 4833 - Security Zones; Cruise Ships, Port of San Diego, CA  

Science.gov (United States)

...San Diego port area landward of the sea buoys bounding the Port of San Diego. This notice...the San Diego port area inside the sea buoys bounding the Port of San Diego would provide...the San Diego port area inside the sea buoys bounding the Port of San Diego....

2011-01-27

375

27 CFR 9.157 - San Francisco Bay.  

Science.gov (United States)

...2010-04-01 2010-04-01 false San Francisco Bay. 9.157 Section 9.157 ...Viticultural Areas § 9.157 San Francisco Bay. (a) Name. The name of the...area described in this section is âSan Francisco Bay.â (b) Approved Maps ....

2010-04-01

376

27 CFR 9.194 - San Antonio Valley.  

Science.gov (United States)

...2010-04-01 2010-04-01 false San Antonio Valley. 9.194 Section 9.194...American Viticultural Areas § 9.194 San Antonio Valley. (a) Name . The name of...area described in this section is âSan Antonio Valleyâ. For purposes of part 4 of...

2010-04-01

377

Saya San and the Burmese Rebellion.  

Science.gov (United States)

This account of the Burmese Rebellion of 1930-1931, and the role of its leader, Saya San, emphasizes the importance of traditional elements in what is commonly regarded as a nationalist uprising. The document holds that the apparently nationalistic symbol...

R. L. Solomon

1969-01-01

378

San Nicolas Island Barge Landing Site Survey.  

Science.gov (United States)

A bathymetric survey of the YFU, barge landing site area on San Nicolas Island, California, has shown that a narrow channel of sufficient width and clear of bottom obstacles exists into the beach to permit safe operation of the vessel under wind and sea c...

1978-01-01

379

Simulations of the 1906 San Francisco Earthquake  

Energy Technology Data Exchange (ETDEWEB)

Simulations of the Great 1906 San Francisco earthquake are being performed as part of the event's centenary. LLNL is participating in a large effort to study this event and possible consequences if the event were to happen today. This document is meant to describe our efforts to others participating in the project.

Rodgers, A; Petersson, A; Tkalcic, H

2005-12-16

380

Are Fibre Channel SANs a Commodity?  

Science.gov (United States)

The goal of this work is to evaluate the feasibility of putting together a Fibre Channel Storage Area Network with heterogeneous hardware running both open-source and commercial operating systems. Adherence to the Fibre Channel Specification is supposed to guarantee interoperability in such an environment. We also want to evaluate how difficult it might be to put together a SAN using open-source components. While all the commercial vendors provide Fibre Channel support, this comes at a cost, e.g., not only O/S and drivers, but usually an expensive support contract. The open-source model could lower the cost of building and maintaining a SAN. Of course, for this to be the case, the open-source platforms would have to provide the functionality to construct a SAN. We are assembling a Fibre Channel SAN from heterogeneous hardware (i386, alpha, sparc) running *BSD, Linux, Tru64, NT and Solaris operating systems. We are running several tests to investigate the level of Fibre Channel support provided by each OS. Our current testbed is specified in the table below. Currently, it only contains open-source platforms. We plan to add a PC running OpenBSD, as well as the following commercial systems: Sun Ultra 1/Solaris, DEC AlphaServer 4000/Tru64 Unix, Pentium Pro PC/Windows NT.

Becker, Jeff; Jacob, Matt; Biegel, Bryan A. (Technical Monitor)

2000-01-01

 
 
 
 
381

Polymer research using KUR-SANS  

Energy Technology Data Exchange (ETDEWEB)

KUR-SANS has been used for researchs of polymers with inhomogeneous structures. It was revealed that the fractal structure in microcrystalline cellulose is stable in the temperature range between 25 and 80degC. It was also revealed that the polyacrylamide gel has a fractal structure and that the fractal dimension increases with the cross link points. (author)

Sugiyama, Masaaki [Kyushu Univ., Fukuoka (Japan). Dept. of Physics; Hara, Kazuhiro; Hiramatsu, Nobuyasu; Nakamura, Atsushi; Iijima, Hideki

1998-07-01

382

Polymer research using KUR-SANS  

International Nuclear Information System (INIS)

KUR-SANS has been used for researches of polymers with inhomogeneous structures. It was revealed that the fractal structure in microcrystalline cellulose is stable in the temperature range between 25 and 80degC. It was also revealed that the polyacrylamide gel has a fractal structure and that the fractal dimension increases with the cross link points. (author)

1998-07-01

383

San Jose, California: Solar in Action (Brochure)  

Energy Technology Data Exchange (ETDEWEB)

This brochure provides an overview of the challenges and successes of San Jose, CA, a 2008 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

2011-10-01

384

Groundwater quality in the San Fernando--San Gabriel groundwater basins, California  

Science.gov (United States)

Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to groundwater-quality information. The San Fernando and San Gabriel groundwater basins constitute one of the study units being evaluated.

Kulongoski, Justin T.; Belitz, Kenneth

2012-01-01

385

ASTER Images San Francisco Bay Area  

Science.gov (United States)

This image of the San Francisco Bay region was acquired on March 3, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters about 50 to 300 feet ), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet.Image: This image covers an area 60 kilometers (37 miles) wide and 75 kilometers (47 miles) long in three bands of the reflected visible and infrared wavelength region. The combination of bands portrays vegetation in red, and urban areas in gray. Sediment in the Suisun Bay, San Pablo Bay, San Francisco Bay, and the Pacific Ocean shows up as lighter shades of blue. Along the west coast of the San Francisco Peninsula, strong surf can be seen as a white fringe along the shoreline. A powerful rip tide is visible extending westward from Daly City into the Pacific Ocean. In the lower right corner, the wetlands of the South San Francisco Bay National Wildlife Refuge appear as large dark blue and brown polygons. The high spatial resolution of ASTER allows fine detail to be observed in the scene. The main bridges of the area (San Mateo, San Francisco-Oakland Bay, Golden Gate, Richmond-San Rafael, Benicia-Martinez, and Carquinez) are easily picked out, connecting the different communities in the Bay area. Shadows of the towers along the Bay Bridge can be seen over the adjacent bay water. With enlargement the entire road network can be easily mapped; individual buildings are visible, including the shadows of the high-rises in downtown San Francisco.Inset: This enlargement of the San Francisco Airport highlights the high spatial resolution of ASTER. With further enlargement and careful examination, airplanes can be seen at the terminals.Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of International Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. Science team leader; Moshe Pniel of JPL is the project manager. ASTER is the only high resolution imaging sensor on Terra. The primary goal of the ASTER mission is to obtain high-resolution image data in 14 channels over the entire land surface, as well as black and white stereo images. With revisit time of between 4 and 16 days, ASTER will provide the capability for repeat coverage of changing areas on Earth's surface.The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping, and monitoring dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance.

2000-01-01

386

77 FR 4400 - Additional Designations, Foreign Narcotics Kingpin Designation Act  

Science.gov (United States)

...Jorge Andres FERNANDEZ CARBAJAL, 2 Calle 6AVE, Barrio El Centro San Pedro Sula, Cortes, Honduras, Registration RUC...Jorge Andres FERNANDEZ CARBAJAL, 2 Calle 6AVE, Barrio El Centro San Pedro Sula, Cortes, Honduras, Registration...

2012-01-27

387

Hvorfor klarer nogle udkantssamfund sig bedre end andre? : En analyse af udnyttelsen af stedbundne ressourcer i to danske udkantssamfund  

DEFF Research Database (Denmark)

Hvorfor klarer nogle udkantssamfund sig bedre end andre, på trods af samme ydre betingelser? Nyere forskning peger her i retning af, at stedbundne ressourcer spiller en større rolle, end man hidtil har antaget. Sådanne ressourcer indbefatter samarbejde inden for forenings-/erhvervsliv samt uformelle netværk, et godt kendskab til hinanden, tillid, lokal viden og fælles værdier og normer, samt en mere håndgribelig ressource som stedets herlighedsværdier. På baggrund af en interviewundersøgelse sommeren 2004 vil jeg i en civilsamfundsanalyse se på, hvorledes stedbundne ressourcer i historiske og nutidige processer opbygges og udnyttes i to danske udkantssamfund med næsten samme rammebetingelser: Klitmøller i Hanstholm kommune og Karby på Mors. Begge områder siges at være i positiv, lokal udvikling men målt på befolk-ningsudvikling er det kun Klitmøller, der er i fremgang. Jeg vil i den forbindelse forsøge at besvare 4 spørgsmål: 1) Hvilke ressourcer er der opbygget historisk i de to lokalsamfund? 2) Hvordan opfatter borgerne selv lokal, positiv udvikling? 3) Hvad siger statistikken om udviklingen i Klit-møller og Karby? 4) Hvilken socioøkonomisk betydning har det nutidige foreningsliv? Dette leder frem til en vurdering af, hvorfor Klitmøller og ikke Karby er i positiv udvikling samt, mere generelt, hvilke faktorer der fører til positiv udvikling i udkantssamfund. På et mere overordnet plan peger undersøgelsen på, at der er behov for en flersidig og mere nuanceret landdistriktspolitik, der både tager stedbundne og ikke stedbundne ressourcer i betragtning.

Svendsen, Gunnar Lind Haase

2007-01-01

388

Long-term landscape evolution of the Basal Complexes of Fuerteventura and La Gomera Islands, Canary Archipelago  

Science.gov (United States)

The Canarias archipelago consists from seven volcanic islands located at the northwestern African margin. Among them only Fuerteventura and La Gomera islands show distinctive wide exposures of the basal complex (BC) that is characteristic with complex geological history. The basal complex was exposed on the western part of Fuerteventura and northwestern sector of La Gomera because of giant landslide(s) which have removed most of the shield stage volcanic rocks (Ancochea et al., 1996; 2006; Stillman, 1999). Generally, landslides are a common feature in the earlier constructive stages of the entire archipelago and many other volcanic islands (McGuire, 1996). Integration of low temperature thermochronological data, and time-Temperature (t-T) numerical modelling have proven to be a powerful tool for reconstructing the thermal and tectonic history, defining and quantifying long-term landscape evolution in variety of geological settings. Therefore, zircon and apatite fission-track techniques and t-T paths modelling were applied to 36 samples representing the main rock units of the BC on both islands. Fuerteventura BC has experienced two very rapid cooling/exhumation events. While, La Gomera BC shows one long-lived very fast cooling/exhumation event. Interestingly, these very rapid cooling/exhumation events are synchronous with these major landslides. There are many reasons for the major landslides on such a volcanic island (see e.g. McGuire, 1996)., But, the most sufficient triggers for these huge mass wasting/landslides events on Fuerteventura and La Gomera are recommended to be the continuous igneous intrusions and dikes which have the potential to decrease the edifice stability, igneous extrusions which add new materials at the surface leading to over-steeping and overloading (McGuire, 1996), and major climatic changes of the Middle Miocene Climatic Optimum (Herold et al., 2011). References Ancochea, E., Brändle, J.L., Cubas, C.R.,Hernán, F.,Huertas, M.J., 1996. Volcanic complexes in the eastern ridge of the Canary Islands: the Miocene activity of the Island of Fuerteventura. Journal of Volcanology and Geothermal Research 70, 183-204. Ancochea, E., Hernán, F., Huertas, M.J., Brändle, J.L., Herrera, R., 2006. A new chronostratigraphical and evolutionary model for La Gomera: implications for the overall evolution of the Canarian Archipelago. Journal of Volcanology and Geothermal Research 157, 271-293. Herold, N., Huber, M., Greenwood, D.R., Müller, R.D., Seton, M., 2011. Early to Middle Miocene monsoon climate in Australia. Geology 39, 3-6. McGuire, W.J., 1996. Volcano instability: a review of contemporary themes. In: McGuire, W.J., Jones, A.P., Neuberg, J. (Eds.), Volcano Instability on the Earth and Terrestrial Planets. Geological Society of London, Special Publication 110, 1-23. Stillman, C.J., 1999. Giant Miocene landslides and the evolution of Fuerteventura, Canary Islands. Journal of Volcanology and Geothermal Research 94, 89-104.

Mansour, Sherif; Glasmacher, Ulrich A.; Albinger, Marie; Stoeckli, Daniel F.

2014-05-01

389

Spatial variation of hermatypic coral assemblages in Cayos Cochinos Archipelago, Honduras Variación espacial de los ensamblajes de corales hermatípicos en el archipiélago Cayos Cochinos, Honduras  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Spatial variations of hermatypic coral assemblages were evaluated at five sites in Cayos Cochinos Archipelago, Honduras, in February 2008. Richness and coverage of corals and other benthic morpho-functional groups were estimated using 56 videotransects. Topographic complexity and depth were also measured by transect. Twenty-two coral taxa were recorded for Cayos Cochinos. Total species richness was similar (16 and 17 taxa) at all sites, whereas species richness by transect was different among...

Rodri?guez-zaragoza, Fabia?n A.; Pe?rez-de Silva, Carlos V.; Ruiz-za?rate, Miguel A.; Cupul-magan?a, Ami?lcar L.; Marco Ortiz; Alicia Medina-Hernández; Pablo Rico; Priego-arenas, Mari?a R.; Álvaro Hernández-Flores

2012-01-01

390

Epiphyte load on the seagrass Posidonia oceanica (L.) Delile does not indicate anthropogenic nutrient loading in Cabrera Archipelago National Park (Balearic Islands, Western Mediterranean)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

[EN] The epiphyte load on the leaves of the seagrass Posidonia oceanica (L.) Delile was estimated at the end of summer in three sites and two depths (7 m and 17 m) of the Cabrera Archipelago National Park (Balearic Islands, Western Mediterranean) from 2004 to 2006 to evaluate if epiphyte load could be used as an indicator of anthropogenic nutrient loading in the shallow marine ecosystems of the park. Asymmetrical ANOVA was used to divide data variability into two components: the contrast b...

Terrados, Jorge; Medina-pons, Francisco Javier

2008-01-01

391

Philopatry drives genetic differentiation in an island archipelago: comparative population genetics of Galapagos Nazca boobies (Sula granti) and great frigatebirds (Fregata minor)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Seabirds are considered highly mobile, able to fly great distances with few apparent barriers to dispersal. However, it is often the case that seabird populations exhibit strong population genetic structure despite their potential vagility. Here we show that Galapagos Nazca booby (Sula granti) populations are substantially differentiated, even within the small geographic scale of this archipelago. On the other hand, Galapagos great frigatebird (Fregata minor) populations do not show any genet...

Levin, Iris I.; Parker, Patricia G.

2012-01-01

392

40Ar/39Ar geochronology of the Fernando de Noronha Archipelago and implications for the origin of alkaline volcanism in the NE Brazil  

Science.gov (United States)

The Fernando de Noronha archipelago, centered ~ 250 km off the northeastern coast of Brazil, is comprised of a diverse suite of alkaline volcanic rocks commonly associated with a mantle-plume origin. Although previous K-Ar determinations divide the three main volcanic formations of the archipelago (Remédios, Quixaba and São José formations) into two age groups, a few ages conflicting with the stratigraphic framework were suspected to suffer from excess argon. To evaluate the presence or absence of excess Ar and to improve the geochronological database for the archipelago, we have dated, by the laser incremental-heating 40Ar/39Ar method, the exact same hand specimens previously dated by K-Ar. The 22 samples studied here yield plateau ages for at least one of the two grains analyzed and none of the specimens contain significant excess Ar. Our results derive a chronostratigraphic sequence for the archipelago that is consistent with the earlier K-Ar determinations. The main discrepancy is related to some basanitic rocks of São José formation, interpreted as the youngest eruptive products which are in fact coeval with the oldest subareal volcanic activity at Fernando de Noronha. Our revised eruptive chronology defines a hiatus of nearly 3 Ma separating an older period of volcanism between 12.5 ± 0.1 and 9.0 ± 0.1 Ma comprising the Remédios and São José formations and a younger episode forming the Quixaba formation between 6.2 ± 0.1 and 1.3 ± 0.1 Ma. Moreover, these results confirm that much of the activity at Fernando de Noronha was contemporaneous with alkaline volcanism well onshore in northeastern Brazil, supporting the suggestion that this hotspot may be a product of small-scale, plate-driven convection in the upper mantle.

Perlingeiro, Gabriela; Vasconcelos, Paulo M.; Knesel, Kurt M.; Thiede, David S.; Cordani, Umberto G.

2013-01-01

393

New taxa of Laparocerus Schönherr, 1834 from Madeira and Porto Santo, with a key to the species of the Madeiran archipelago (Coleoptera, Curculionidae, Entiminae)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As part of a monographic study of the weevil genus Laparocerus Schönherr, 1834, which is very diverse in Macaronesia, this paper proposes some changes to the systematics of the genus and describes a number of new taxa from the archipelago of Madeira. Combining the morphological data with the molecular data presented in a previous contribution, the subgenera Laparocerus and Atlantis are redefined and three new subgenera are described: Atlantodes n. subgen., Pseu...

Machado, A.

2008-01-01

394

Malaria incidence and prevalence on Pemba Island before the onset of the successful control intervention on the Zanzibar Archipelago  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Malaria incidence has been reported to decrease substantially in parts of sub-Saharan Africa, including the Zanzibar Archipelago in East Africa. A cohort study with an intensive follow-up on Pemba Island just before the onset of the highly successful malaria control intervention was conducted. The reported estimates of parasite prevalence and incidence can serve as a robust baseline to evaluate the effect size of the successful interventions and the potential contribution of quality controls and other factors associated with research studies in the decreased estimate of transmission. Methods In a rural clinic, two successive cohorts of 537 children total aged 2-23 months were followed for six months each with an intensive visitation schedule of bi-weekly follow-up. Robust estimates of incidence and prevalence according to four different malaria definitions were obtained. Results Malaria incidence and prevalence placed Pemba Island in a hyperendemic rather than holoendemic setting for the years 2003-2005. Overall parasite prevalence was estimated to be 39% - with monthly estimates varying between 30% and 50%. Incidence of malaria varied between 2.3 and 3.8 malaria episodes per year based on a diagnosis of fever and various microscopy-based parasite thresholds and between 4.8 and 5.7 based on a diagnosis of fever and 100 parasites/microliter analogous to detection by rapid diagnostic tests. Both parasite densities and malaria incidence increased with age and rainy season. Malaria incidence also varied substantially between the individual villages within the study area. Conclusions Pemba Island was previously considered holo-endemic for Malaria. The data suggest that the transmission situation on Pemba Island was significantly lower in 2003-2005 suggesting a hyper-endemic or meso-endemic transmission environment. The figures were obtained just before the onset of the highly successful malaria control intervention by impregnated bed nets and IRS on the Zanzibar Archipelago and provide robust estimates of the malaria transmission situation prior to the control programme. Together with other published data, the results suggest that malaria transmission had started to decrease before the onset of the control programme. The local heterogeneity in malaria incidence highlights the importance of a micro-epidemiological approach in the context of malaria control and elimination.

Othman Mashavu K

2010-01-01

395

POACEAE EN EL ARCHIPIELAGO DE JUAN FERNANDEZ (ROBINSON CRUSOE) / POACEAE IN THE JUAN FERNANDEZ ARCHIPELAGO (ROBINSON CRUSOE)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish El archipiélago de Juan Fernández (Robinson Crusoe) está ubicado a 670 km al oeste de Valparaíso, en el Océano Pacífico. Está formado por tres islas, todas de origen volcánico: Más a Tierra (Robinson Crusoe) Más Afuera (Alejandro Selkirk) y Santa Clara. Los inventarios más completos de la flora de e [...] ste archipiélago fueron realizados por Johow a fines del s. XIX y por Skottsberg, a mediados del siglo pasado. El estudio más reciente es el de Danton & Perrier. La flora documentada es de 423 especies de plantas vasculares, 55 Pteridophyta, 289 Dicotyledoneae y 79 Monocotyledoneae. Del número total de especies, 31,2% son endémicas, 18,7% nativas y 50,1% adventicias. La familia Poaceae comprende el 11% de la flora total de las islas y presenta 53 especies incluidas en 32 géneros, de las cuales el 9,4% son endémicas, 9,4% nativas y 81,2% introducidas. En este trabajo se entrega una clave dicotómica para los géneros, se describen y se señala, para cada una de las especies, información relacionada con la iconografía, distribución, ecología, estados de conservación y material examinado. Se comentan estos resultados con los descritos por Danton & Perrier (2006). Abstract in english The archipelago of Juan Fernández (Robinson Crusoe) is located to 670 km west of Valparaíso, in the Pacific Ocean. It is formed by 3 islands, all of volcanic origin: Masatierra (Robinson Crusoe), Masafuera (Alexander Selkirk) and Santa Clara. Johow and Skottsberg have made the most complete inventor [...] ies of the flora of this archipelago. The most recent study is the one of Danton & Perrier. The documented flora include 423 species of vascular plants, 55 Pteridophyta, 289 Dicotyledoneae and 79 Monocotyledoneae. Of the total number of species, 31.2% are endemic, 18.7% native and 50.1% introduced. The Poaceae family represents 11% of the total flora of the islands and displays 53 species included in 32 genera, of which 9,4% are endemic, 9,4% native and 81,2% alien. In this work a key for the genera and a description of the species are given. Information in relationship to the iconography, distribution, ecology, conservation and examined material is presented. These results are compared and discussed with the ones of Danton & Perrier (2006)

Carlos M, Baeza; Clodomiro, Marticorena; Tod, Stuessy; Eduardo, Ruiz; María, Negritto.

396

POACEAE EN EL ARCHIPIELAGO DE JUAN FERNANDEZ (ROBINSON CRUSOE POACEAE IN THE JUAN FERNANDEZ ARCHIPELAGO (ROBINSON CRUSOE  

Directory of Open Access Journals (Sweden)

Full Text Available El archipiélago de Juan Fernández (Robinson Crusoe está ubicado a 670 km al oeste de Valparaíso, en el Océano Pacífico. Está formado por tres islas, todas de origen volcánico: Más a Tierra (Robinson Crusoe Más Afuera (Alejandro Selkirk y Santa Clara. Los inventarios más completos de la flora de este archipiélago fueron realizados por Johow a fines del s. XIX y por Skottsberg, a mediados del siglo pasado. El estudio más reciente es el de Danton & Perrier. La flora documentada es de 423 especies de plantas vasculares, 55 Pteridophyta, 289 Dicotyledoneae y 79 Monocotyledoneae. Del número total de especies, 31,2% son endémicas, 18,7% nativas y 50,1% adventicias. La familia Poaceae comprende el 11% de la flora total de las islas y presenta 53 especies incluidas en 32 géneros, de las cuales el 9,4% son endémicas, 9,4% nativas y 81,2% introducidas. En este trabajo se entrega una clave dicotómica para los géneros, se describen y se señala, para cada una de las especies, información relacionada con la iconografía, distribución, ecología, estados de conservación y material examinado. Se comentan estos resultados con los descritos por Danton & Perrier (2006.The archipelago of Juan Fernández (Robinson Crusoe is located to 670 km west of Valparaíso, in the Pacific Ocean. It is formed by 3 islands, all of volcanic origin: Masatierra (Robinson Crusoe, Masafuera (Alexander Selkirk and Santa Clara. Johow and Skottsberg have made the most complete inventories of the flora of this archipelago. The most recent study is the one of Danton & Perrier. The documented flora include 423 species of vascular plants, 55 Pteridophyta, 289 Dicotyledoneae and 79 Monocotyledoneae. Of the total number of species, 31.2% are endemic, 18.7% native and 50.1% introduced. The Poaceae family represents 11% of the total flora of the islands and displays 53 species included in 32 genera, of which 9,4% are endemic, 9,4% native and 81,2% alien. In this work a key for the genera and a description of the species are given. Information in relationship to the iconography, distribution, ecology, conservation and examined material is presented. These results are compared and discussed with the ones of Danton & Perrier (2006

Carlos M Baeza

2007-12-01

397

SAFOD Penetrates the San Andreas Fault  

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Full Text Available SAFOD, the San Andreas Fault Observatory at Depth (Fig. 1, completed an important milestone in July 2005 by drilling through the San Andreas Fault at seismogenic depth. SAFOD is one of three major components of EarthScope, a U.S. National Science Foundation (NSF initiative being conducted in collaboration with the U.S. Geological Survey (USGS. The International Continental Scientific DrillingProgram (ICDP provides engineering and technical support for the project as well as online access to project data and information (http://www.icdp-online.de/sites/sanandreas/news/news1.html. In 2002, the ICDP, the NSF, and the USGS provided funding for a pilot hole project at the SAFOD site. Twenty scientifi c papers summarizing the results of the pilot hole project as well as pre-SAFOD site characterization studies were published in Geophysical Research Letters (Vol.31, Nos. 12 and 15, 2004.

Mark D. Zoback

2006-03-01

398

SANS-1 Experimental reports of 2000  

International Nuclear Information System (INIS)

The instrument SANS-1 at the Geesthacht neutron facility GeNF was used for scattering experiments in 2000 at 196 of 200 days of reactor and cold source operation. The utilisation was shared between the in-house R and D program and user groups from different universities and research centers. These measurements were performed and analysed either by guest scientists or GKSS staff. The focus of the work in 2000 at the experiment SANS-1 was the structural investigation of hydrogen containing substances such as biological macromolecules (ribosomes, protein-RNA-complexes, protein solutions, glycolipids and membranes), molecules which are important in the fields of environmental research (refractoric organic substances) and technical chemistry (surfactants, micelles). (orig.)

2001-01-01

399

San Rafael mining and fabrication complex today  

International Nuclear Information System (INIS)

In Mendoza province, 35 km West San Rafael city, is located a CNEA installation for uranium ore extraction and concentration: the San Rafael Mining and Fabrication Complex. By the middle of the nineties, as a consequence of the very low prices of uranium concentrate in the international market and of the high internal production costs, uranium extraction was stopped. To day, the international price of the concentrate had a very important increase and the Government has decided the completion of the Atucha II Nuclear Power Station construction. Moreover, studies have been started for new nuclear power plants. In such circumstances the reactivation of the Complex will make sure the uranium supply for our nuclear power stations, contributing to the improvement of the energy generation mix in our country. (author)

2005-01-01

400

Synthetic seismicity for the San Andreas fault  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Because historical catalogs generally span only a few repetition intervals of major earthquakes, they do not provide much constraint on how regularly earthquakes recur. In order to obtain better recurrence statistics and long-term probability estimates for events M ? 6 on the San Andreas fault, we apply a seismicity model to