Search Results - "Drake, N"

The topographic signature of vegetation development along a braided river: Results of a combined analysis of airborne lidar, color air photographs, and ground measurements by Bertoldi, W., Gurnell, A. M., Drake, N. A.

“…This paper combines archived remotely sensed data (airborne lidar and digital color air photographs) with nonsynchronous ground observations (including…”
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TYC 8327-1678-1: a new super lithium-rich K giant by Holanda, N, Drake, N A, Pereira, C B

“…ABSTRACT In this work, we show that TYC 8327-1678-1 is a low-mass red giant star with a super lithium abundance in its atmosphere. For this, we used…”
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Chemical analysis of K giants in the young open cluster NGC 2345 by Holanda, N, Pereira, C B, Drake, N A

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Chemical abundances and kinematics of barium stars by de Castro, D. B., Pereira, C. B., Roig, F., Jilinski, E., Drake, N. A., Chavero, C., Sales Silva, J. V.

“…In this paper, we present an homogeneous analysis of photospheric abundances based on high-resolution spectroscopy of a sample of 182 barium stars and…”
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The s-process enriched star HD 55496: origin from a globular cluster or from the tidal disruption of a dwarf galaxy? by Pereira, C B, Drake, N A, Roig, F

“…We present a new abundance analysis of HD 55496, previously known as a metal-poor barium star. We found that HD 55496 has a metallicity [Fe/H]  = −1.55 and is…”
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Heavy elements in barium stars by Roriz, M P, Lugaro, M, Pereira, C B, Sneden, C, Junqueira, S, Karakas, A I, Drake, N A

“…ABSTRACT New elemental abundances for the neutron-capture elements Sr, Nb, Mo, Ru, La, Sm, and Eu are presented for a large sample of 180 barium (Ba) giant…”
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Ultrastructural view of astrocyte arborization, astrocyte-astrocyte and astrocyte-synapse contacts, intracellular vesicle-like structures, and mitochondrial network by Aten, Sydney, Kiyoshi, Conrad M., Arzola, Emily P., Patterson, Jeremy A., Taylor, Anne T., Du, Yixing, Guiher, Ally M., Philip, Merna, Camacho, Elizabeth Gerviacio, Mediratta, Devin, Collins, Kelsey, Boni, Kirsten, Garcia, Silvana A., Kumar, Rahul, Drake, Aiden N., Hegazi, Ahlam, Trank, Lindsey, Benson, Emily, Kidd, Grahame, Terman, David, Zhou, Min

“…The complexity of astrocyte morphology and syncytial coupling through gap junctions are crucial for astrocyte function in the brain. However, the…”
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High-resolution Spectroscopic Analysis of Four Unevolved Barium Stars by Roriz, M. P., Holanda, N., da Conceição, L. V., Junqueira, S., Drake, N. A., Sonally, A., Pereira, C. B.

“…A classical local thermodynamic equilibrium analysis, based on high-resolution spectroscopic data, is performed for a sample of three potential barium dwarf…”
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High-resolution spectroscopic analysis of four new chemically peculiar stars by Roriz, M P, Pereira, C B, Junqueira, S, Lugaro, M, Drake, N A, Sneden, C

“…We present detailed chemical compositions of four stars on the first-ascent red giant branch that are classified as chemically peculiar, but lack comprehensive…”
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Tungsten in barium stars by Roriz, M P, Lugaro, M, Junqueira, S, Sneden, C, Drake, N A, Pereira, C B

“…ABSTRACT Classical barium stars are red giants that receive from their evolved binary companions material exposed to the slow neutron-capture nucleosynthesis,…”
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Rubidium in Barium stars by Roriz, M P, Lugaro, M, Pereira, C B, Drake, N A, Junqueira, S, Sneden, C

“…ABSTRACT Barium (Ba) stars are chemically peculiar stars that display in their atmospheres signatures of the slow neutron-capture (s-process) mechanism that…”
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High-resolution spectroscopy of red giants and ‘yellow stragglers’ in the southern open cluster NGC 2539 by Martinez, Cintia F, Holanda, N, Pereira, C B, Drake, N A

“…We present a detailed high-resolution spectroscopic analysis of 12 red giant stars, in single and binaries or multiples systems, classified as members of the…”
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Monitoring desertification and land degradation over sub-Saharan Africa by Symeonakis, E., Drake, N.

“…A desertification monitoring system is developed that uses four indicators derived using continental-scale remotely sensed data: vegetation cover, rain use…”
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Red giants and yellow stragglers in the young open cluster NGC 2447 by da Silveira, M D, Pereira, C B, Drake, N A

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A study of chemical abundances, rotational velocities, and orbital elements in single-lined spectroscopic binary stars in open clusters by Ramos, A A, Holanda, N, Drake, N A, Rain, M J, Maia, F F S, Daflon, S, Pereira, C B

“…ABSTRACT Binary interactions play a significant role in stellar evolution. In this study, we present a comprehensive analysis of 17 single-lined spectroscopic…”
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The open cluster NGC 2345: a study of chemical abundances with near-infrared IGRINS high-resolution spectra by Holanda, N, Roriz, M P, Drake, N A, Junqueira, S, Daflon, S, da Silva, J R P, Pereira, C B

“…ABSTRACT Open clusters are relatively young and numerous. These systems are distributed throughout the Galactic disc and provide insights on the chemistry of…”
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Legacy and currently used pesticides in the atmospheric environment of Lake Victoria, East Africa by Arinaitwe, Kenneth, Kiremire, Bernard T., Muir, Derek C.G., Fellin, Phil, Li, Henrik, Teixeira, Camilla, Mubiru, Drake N.

“…The Lake Victoria watershed has extensive agricultural activity with a long history of pesticide use but there is limited information on historical use or on…”
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Prevalence and sources of polychlorinated biphenyls in the atmospheric environment of Lake Victoria, East Africa by Arinaitwe, Kenneth, Muir, Derek C.G., Kiremire, Bernard T., Fellin, Phil, Li, Henrik, Teixeira, Camilla, Mubiru, Drake N.

“…The large surface area of Lake Victoria (about 68,800 km2) makes it vulnerable to high atmospheric deposition of chemical pollutants. We present measurements…”
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NGC 6124: a young open cluster with anomalous- and fast-rotating giant stars by Holanda, N, Drake, N A, Corradi, W J B, Ferreira, F A, Maia, F, Magrini, L, da Silva, J R P, Pereira, C B

“…ABSTRACT We present the results of a chemical analysis of fast and anomalous rotator giants members of the young open cluster NGC 6124. For this purpose, we…”
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The two magnetic components in the Herbig Ae SB2 system HD 104237 by Järvinen, S P, Carroll, T A, Hubrig, S, Ilyin, I, Schöller, M, Drake, N A, Pogodin, M A

“…ABSTRACT We present longitudinal magnetic field measurements 〈Bz〉 for the Herbig Ae primary and the T Tauri secondary in the SB2 system HD 104237. These…”
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