by Piter Kehoma Boll Some weeks ago I introduced a diatom here and mentioned that, despite the fact that they are a very abundant group, little information on species is available. Today our species is a radiolarian and, just as … Continue reading →... Read more »
Dolven, J., & Bjørklund, K. (2001) An early Holocene peak occurrence and recent distribution of Rhizoplegma boreale (Radiolaria): a biomarker in the Norwegian Sea. Marine Micropaleontology, 42(1-2), 25-44. DOI: 10.1016/S0377-8398(01)00011-1
Dumitrica, P. (2013) Cleveiplegma nov. gen., a new generic name for the radiolarian species Rhizoplegma boreale (Cleve, 1899). Revue de Micropaléontologie, 56(1), 21-25. DOI: 10.1016/j.revmic.2013.01.001
by Piter Kehoma Boll If you think spiders are scary creatures, today you will learn that they are scared too. But what could scary a spider? Well, a web bug! We usually think of spider webs as an astonishing evolutionary … Continue reading →... Read more »
PAPE, R. (2013) Description and Ecology of A New Cavernicolous, Arachnophilous Thread-legged Bug (Hemiptera: Reduviidae: Emesini) from Kartchner Caverns, Cochise County, Arizona. Zootaxa, 3670(2), 137. DOI: 10.11646/zootaxa.3670.2.2
Resende, L., Zepon, T., Bichuette, M., Pape, R., & Gil-Santana, H. (2016) Associations between Emesinae heteropterans and spiders in limestone caves of Minas Gerais, southeastern Brazil. Neotropical Biology and Conservation, 11(3). DOI: 10.4013/nbc.2016.113.01
Wignall, A., & Taylor, P. (2010) Predatory behaviour of an araneophagic assassin bug. Journal of Ethology, 28(3), 437-445. DOI: 10.1007/s10164-009-0202-8
Recently, researchers have been at odds over a simple, central question in Southwestern history: How did the people of Chaco Canyon manage to grow food in such an arid environment?
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Benson, L. (2016) The Chuska Slope as an agricultural alternative to Chaco Canyon: A rebuttal of Tankersley et al. (2016). Journal of Archaeological Science: Reports. DOI: 10.1016/j.jasrep.2016.10.017
Tankersley, K., Dunning, N., Thress, J., Owen, L., Huff, W., Fladd, S., Bishop, K., Plog, S., Watson, A., Carr, C.... (2016) Evaluating soil salinity and water management in Chaco Canyon, New Mexico. Journal of Archaeological Science: Reports, 94-104. DOI: 10.1016/j.jasrep.2016.07.014
Working for both public and private institutions, archaeologists constantly construct and deconstruct narratives about our past, but traditionally publish only a fraction of the sites they excavate and thus destroy. Computers and the internet present a vast range of opportunities for archaeologists to share primary data and foster intercultural online collaborations and reinterpretations of archaeological contexts. ... Read more »
Now and forever, or at least for a very long time By 2050, sea levels will have risen this much. If we don’t act, average global temperature will rise x degrees by 2100. These are the things we all hear in the discussion concerning climate change and its consequences. But beyond the turn of the […]... Read more »
Clark, P., Shakun, J., Marcott, S., Mix, A., Eby, M., Kulp, S., Levermann, A., Milne, G., Pfister, P., Santer, B.... (2016) Consequences of twenty-first-century policy for multi-millennial climate and sea-level change. Nature Climate Change, 6(4), 360-369. DOI: 10.1038/nclimate2923
How has changes in sea water chemistry and mass extinctions influenced the evolution and diversity of aragonite versus calcite marine skeletal groups through time..... Read more »
Hautmann, M. (2006) Shell mineralogical trends in epifaunal Mesozoic bivalves and their relationship to seawater chemistry and atmospheric carbon dioxide concentration. Facies, 52(3), 417-433. DOI: 10.1007/s10347-005-0029-x
PORTER, S. (2010) Calcite and aragonite seas and the de novo acquisition of carbonate skeletons. Geobiology, 8(4), 256-277. DOI: 10.1111/j.1472-4669.2010.00246.x
Zhuravlev, A., & Wood, R. (2009) Controls on carbonate skeletal mineralogy: Global CO2 evolution and mass extinctions. Geology, 37(12), 1123-1126. DOI: 10.1130/G30204A.1
Me and my microbes In the past decade or so, the microbiota, the community of microbes that makes its home in the guts of humans and other animals, has become quite a popular research topic. Quite rightly so, since our little guests seem to affect aspects of our lives that we wouldn’t necessarily consider to […]... Read more »
Faria VG, Martins NE, Magalhães S, Paulo TF, Nolte V, Schlötterer C, Sucena É, & Teixeira L. (2016) Drosophila Adaptation to Viral Infection through Defensive Symbiont Evolution. PLoS genetics, 12(9). PMID: 27684942
Solé RV, Montañez R, & Duran-Nebreda S. (2015) Synthetic circuit designs for earth terraformation. Biology direct, 37. PMID: 26187273
Beyond the well-known Solar System, there is an immensity of other unique systems... Read more »
Johanna K. Teske, Stephen A. Shectman, Steve S. Vogt, Matías Díaz, R. Paul Butler, Jeffrey D. Crane, Ian B. Thompson, & Pamela Arriagada. (2016) The Magellan PFS Planet Search Program: Radial Velocity and Stellar Abundance Analyses of the 360 AU, Metal-Poor Binary "Twins" HD 133131A . Astronomical Journal,. arXiv: 1608.06216v2
Orosz, J., Welsh, W., Carter, J., Fabrycky, D., Cochran, W., Endl, M., Ford, E., Haghighipour, N., MacQueen, P., Mazeh, T.... (2012) Kepler-47: A Transiting Circumbinary Multiplanet System. Science, 337(6101), 1511-1514. DOI: 10.1126/science.1228380
R. Di Stefano, & A. Ray. (2016) Globular Clusters as Cradles of Life and Advanced Civilizations. ASTROPHYSICAL JOURNAL , 827(1). arXiv: 1601.03455v1
Marcelo Tucci Maia, Jorge Melendez, & Ivan Ramirez. (2014) High precision abundances in the 16 Cyg binary system: a signature of the rocky core in the giant planet. ASTROPHYSICAL JOURNAL LETTERS , 790(2). arXiv: 1407.4132v1
Anglada-Escudé, G., Amado, P., Barnes, J., Berdiñas, Z., Butler, R., Coleman, G., de la Cueva, I., Dreizler, S., Endl, M., Giesers, B.... (2016) A terrestrial planet candidate in a temperate orbit around Proxima Centauri. Nature, 536(7617), 437-440. DOI: 10.1038/nature19106
Borucki, W., Agol, E., Fressin, F., Kaltenegger, L., Rowe, J., Isaacson, H., Fischer, D., Batalha, N., Lissauer, J., Marcy, G.... (2013) Kepler-62: A Five-Planet System with Planets of 1.4 and 1.6 Earth Radii in the Habitable Zone. Science, 340(6132), 587-590. DOI: 10.1126/science.1234702
Stephen R. Kane, & Dawn M. Gelino. (2014) On the Inclination and Habitability of the HD 10180 System. ASTROPHYSICAL JOURNAL, 792(2). arXiv: 1408.4150v1
Some comments on early animal evolution fossil record and Indian Peninsular Proterozoic Basins... Read more »
Kale, V. (2016) Proterozoic Basins of Peninsular India: Status within the Global Proterozoic Systems. Proceedings of the Indian National Science Academy, 82(3). DOI: 10.16943/ptinsa/2016/48461
Mathur, V., Shome, S., Nath, S., & Babu, R. (2014) First record of metazoan eggs and embryos from early Cambrian Chert Member of Deo ka Tibba Formation, Tal Group, Uttarakhand Lesser Himalaya. Journal of the Geological Society of India, 83(2), 191-197. DOI: 10.1007/s12594-014-0031-4
Stone tools and fossils suggest that an early wave of Homo sapiens may have migrated into India as early as 100K years ago. Did these migrants leave a genetic trace in present day Indians.. ... Read more »
Mallick, S., Li, H., Lipson, M., Mathieson, I., Gymrek, M., Racimo, F., Zhao, M., Chennagiri, N., Nordenfelt, S., Tandon, A.... (2016) The Simons Genome Diversity Project: 300 genomes from 142 diverse populations. Nature. DOI: 10.1038/nature18964
A new study using aerial imagery across the state of California has found that converting land to grow almonds between 2007 and 2014 has led to a 27% annual increase in irrigation demands—despite the state's historic drought. The expansion of almonds has also consumed 16,000 acres of wetlands and will likely put additional pressure on already stressed honeybee populations.
... Read more »
WATKINS, Larissa, WATSON, Kelly, & HUFFMAN, F. Tyler. (2016) MONITORING CHANGE IN AGRICULTURAL LAND AND WATER USAGE IN CALIFORNIA’S CENTRAL VALLEY USING GEOSPATIAL TECHNIQUES. Geological Society of America. info:/10.1130/abs/2016AM-285205
New theories in ocean circulation and acidification, shorter sea ice season in polar bear habitats, and new tools to track bird migrations and hair protein analysis in forensic IDs. Here are five of the latest scientific studies published open-access this week.... Read more »
Klockmann, M., Mikolajewicz, U., & Marotzke, J. (2016) The effect of greenhouse gas concentrations and ice sheets on the glacial AMOC in a coupled climate model. Climate of the Past, 12(9), 1829-1846. DOI: 10.5194/cp-12-1829-2016
Sutton, A., Sabine, C., Feely, R., Cai, W., Cronin, M., McPhaden, M., Morell, J., Newton, J., Noh, J., Ólafsdóttir, S.... (2016) Using present-day observations to detect when anthropogenic change forces surface ocean carbonate chemistry outside preindustrial bounds. Biogeosciences, 13(17), 5065-5083. DOI: 10.5194/bg-13-5065-2016
Shamoun-Baranes, J., Farnsworth, A., Aelterman, B., Alves, J., Azijn, K., Bernstein, G., Branco, S., Desmet, P., Dokter, A., Horton, K.... (2016) Innovative Visualizations Shed Light on Avian Nocturnal Migration. PLOS ONE, 11(8). DOI: 10.1371/journal.pone.0160106
Parker, G., Leppert, T., Anex, D., Hilmer, J., Matsunami, N., Baird, L., Stevens, J., Parsawar, K., Durbin-Johnson, B., Rocke, D.... (2016) Demonstration of Protein-Based Human Identification Using the Hair Shaft Proteome. PLOS ONE, 11(9). DOI: 10.1371/journal.pone.0160653
According to new research, widespread adoption of genetically modified crops has decreased the use of insecticides, but increased the use of weed-killing herbicides as weeds become more resistant. This is the largest study of genetically modified crops and pesticide use to date. The team of economists studied annual data from more than 5,000 soybean and 5,000 maize farmers in the U.S. from 1998 to 2011, far exceeding previous studies that have been limited to one or two years of data.
... Read more »
Perry, E., Ciliberto, F., Hennessy, D., & Moschini, G. (2016) Genetically engineered crops and pesticide use in U.S. maize and soybeans. Science Advances, 2(8). DOI: 10.1126/sciadv.1600850
Saving up excess solar and wind energy for times when the sun is down or the air is still requires a storage device. Batteries get the most attention as a promising solution although pumped hydroelectric storage is currently used most often. Now researchers are advancing another potential approach using sugar alcohols—an abundant waste product of the food industry—mixed with carbon nanotubes.
... Read more »
Zhang, H., Rindt, C., Smeulders, D., & Nedea, S. (2016) Nanoscale Heat Transfer in Carbon Nanotubes - Sugar Alcohol Composite as Heat Storage Materials. The Journal of Physical Chemistry C. DOI: 10.1021/acs.jpcc.6b05466
Spinning black holes are capable of complex quantum information processes encoded in the X-ray photons. ... Read more »
Ovidiu Racorean. (2016) Photonic Bell states creation around rotating black holes. ArXiv. arXiv: 1608.06822v1
With nearly sixty percent of American adults now taking prescription medications--from antidepressants to cholesterol treatments--there is growing concern about how many drugs are flowing through wastewater treatment facilities and into rivers and lakes. Research confirms that pharmaceutical pollution can cause damage to fish and other ecological problems--and may pose risks to human health too.
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Vatovec, C., Phillips, P., Van Wagoner, E., Scott, T., & Furlong, E. (2016) Investigating dynamic sources of pharmaceuticals: Demographic and seasonal use are more important than down-the-drain disposal in wastewater effluent in a University City setting. Science of The Total Environment. DOI: 10.1016/j.scitotenv.2016.07.199
What exactly are SETI signals?... Read more »
Carrigan Jr, R. (2006) Do potential SETI signals need to be decontaminated?. Acta Astronautica, 58(2), 112-117. DOI: 10.1016/j.actaastro.2005.05.004
Some of the most remote caves on Earth will reveal secrets of Greenland’s climate that pre-date the ice sheet. Preliminary results are look exciting.... Read more »
Gina Moseley, R. Lawrence Edwards, Hai Cheng, Yanbin Lu, & Christoph Spoetl. (2016) Northeast Greenland Caves Project: first results from a speleothem-derived record of climate change for the Arctic. Geophysical Research Abstracts EGU General Assembly 2016, held 17-22 April, 2016 in Vienna Austria, p.11152. info:other/2016EGUGA.1811152M
Recently published in a peer-reviewed scientific journal, scientists have revisited the field of rainbow research and all the possible applications it provides.... Read more »
Haußmann, A. (2016) Rainbows in nature: recent advances in observation and theory. European Journal of Physics, 37(6), 63001. DOI: 10.1088/0143-0807/37/6/063001
Results of a new study by environmental health scientists suggest that inexpensive cloth masks worn by people who hope to reduce their exposure to air pollution vary widely in effectiveness and could be giving users a false sense of security, especially in highly polluted areas.
... Read more »
Shakya, K., Noyes, A., Kallin, R., & Peltier, R. (2016) Evaluating the efficacy of cloth facemasks in reducing particulate matter exposure. Journal of Exposure Science and Environmental Epidemiology. DOI: 10.1038/jes.2016.42
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