Results 111 to 120 of about 240,870 (365)

Late Holocene tectonic land-level changes and tsunamis at Mitla lagoon, Guerrero, Mexico [PDF]

Geofísica Internacional, 2009
Sedimentological, stratigraphic and geochemical data record abrupt land elevation change, coastal subsidence, and changes in the salinity of Mitla lagoon that may be associated with a tsunami around 3400-3500 yr BP.
M. Ortiz, V. Kostoglodov, A. B. Cundy, M. T. Ramírez-Herrera   +3 more
doaj  

Stratigraphy of organic-rich deposits in floodplain environments: examples from the upper Odra river basin

Quaestiones Geographicae, 2012
. Macrofossil analysis and radiocarbon dating were used to determine the age, composition and succession pattern of organic-rich deposits infilling oxbows and flood basins in the Rivers Kłodnica, Odra and Osobłoga valleys (southern Poland). Both detrital
Wójcicki Krzysztof J.
doaj   +1 more source

Preliminary data on climate development in the territory of the Karelian Isthmus in the holocene based on the results of chironomid and lithological analysis

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
The main objective of this study was to reconstruct and analyze changes in the natural and climatic conditions in the Karelian Isthmus over the Holocene. Bottom sediment samples from Lake Medvedevskoye were taken in the spring 2012.
Liudmila Syrykh, Larisa Nazarova, Dmitry Subetto   +2 more
doaj   +1 more source

Rethinking the Holocene temperature conundrum

Climate Research
Recent scholarship argues for more research to resolve the ‘Holocene temperature conundrum’, an apparent discrepancy between decreasing proxy-reconstructed and increasing model-simulated long-term temperature trends during the late Holocene. Here, we argue that the observed proxy-model offset likely results from inappropriate comparisons of different ...
Essell, Helen, Esper, Jan, Wanner, Heinz, Büntgen, Ulf   +3 more
openaire   +5 more sources

From lactation to malignancy: A comparison between healthy and cancerous breast gland at single‐cell resolution reveals new issues for tumorigenesis

FEBS Letters, EarlyView.
Single‐cell RNA sequencing reveals an opposite role of SLPI in basal tumors based on metastatic spread, along with shared activation of specific regulons in cancer cells and mature luminal lactocytes, as well as downregulation of MALAT1 and NEAT1 in the latter.
Pietro Ancona, Carlo M. Bergamini, Carlo Ferrari, Stefano Volinia, Nicoletta Bianchi   +4 more
wiley   +1 more source

Cancer cell death induced by the NAD antimetabolite Vacor discloses the antitumor potential of SARM1

FEBS Letters, EarlyView.
Vacor, a compound converted into the toxic metabolite Vacor adenine dinucleotide (VAD) by the nicotinamide salvage pathway enzymes NAMPT and NMNAT2, exhibits antitumor activity by inducing rapid and complete NAD depletion. We report that Vacor toxicity is limited to cell lines expressing high levels of SARM1, a NAD glycohydrolase.
Giuseppe Ranieri, Andrea Lapucci, Giuseppe Orsomando, Nadia Raffaelli, Alberto Chiarugi, Daniela Buonvicino   +5 more
wiley   +1 more source

North Atlantic marine ¹⁴C reservoir effects: implications for late-Holocene chronological studies [PDF]

, 2009
We investigated surface ocean–atmosphere 14C offsets for the later Holocene at eight locations in the eastern North Atlantic. This resulted in 11 new ΔR assessments for the west coast of Ireland, the Outer Hebrides, the north coast of the Scottish ...
A.J. Dugmore, Aitken, Ascough, Ascough, Ascough, Ascough, Ascough, Ashmore, Austin, Barrett, Broecker, Bronk Ramsey, Bronk Ramsey, Campin, Church, Culleton, Dugmore, Dye, Eiríksson, Eiríksson, Forman, G.T. Cook, Grove, Harkness, Heier-Neilsen, Hughen, Jiang, Jones, Knight, Kovanen, Lamb, Mangerud, McGovern, McKay, Mook, P.L. Ascough, Paull, Reimer, Reimer, Siani, Siani, Slota, Southon, Spiker, Stuiver, Stuiver, Stuiver, Ulm, Vandeputte, Waelbroeck, Ward, Yoneda   +51 more
core   +1 more source

Insight into the vegetation development of the Karkonosze Mountains (southwestern Poland) during the Late Vistulian and Holocene, based on data from glacial lakes

Acta Palaeobotanica
New palaeoecological records from two glacial lakes (the Mały Staw – 1183 m a.s.l. and the Wielki Staw – 1225 m a.s.l.) from the Polish Western Sudetes were obtained with the aim of better understanding the long-term vegetation development, the ...
Agnieszka Wacnik, Ewa Madeyska
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Transient simulations of the carbon and nitrogen dynamics in northern peatlands: from the Last Glacial Maximum to the 21st century [PDF]

, 2012
The development of northern high-latitude peatlands played an important role in the carbon (C) balance of the land biosphere since the Last Glacial Maximum (LGM).
Joos, F, Spahni, R, Steinacher, M, Stocker, BD, Yu, ZC   +4 more
core   +4 more sources