Results 161 to 170 of about 3,880,782 (293)

Dental enamel hypoplasia and intra‐tooth isotope records as indicators of physiological stress and environmental variability in Early Pleistocene hippopotamids from Melka Kunture (Upper Awash, Ethiopia)

Journal of Quaternary Science, EarlyView.
ABSTRACT Enamel hypoplasia results from temporary disruptions of enamel deposition during tooth development. It is widely used as an indicator of physiological stress in archeological and paleontological contexts; yet, its relationship with environmental conditions during tooth formation remains poorly constrained.
Giuseppe Briatico, Denis Geraads, Rita T. Melis, Margherita Mussi   +3 more
wiley   +1 more source

Maize stigmas react differently to self- and cross-pollination and fungal invasion. [PDF]

Plant Physiol
Begcy K, Mondragón-Palomino M, Zhou LZ, Seitz PL, Márton ML, Dresselhaus T.   +5 more
europepmc   +1 more source

New Schmidt hammer exposure‐age dating calibrations for the Last Glacial Termination in NW Scotland: Development and application to undated Torridon Group sandstone surfaces in Wester Ross

Journal of Quaternary Science, EarlyView.
ABSTRACT An understanding of the terrestrial extent, retreat dynamics and climate–glacier coupling of ice masses during the Last Glacial Termination (LGT, ~18–11 ka) is often limited by a fragmentary geomorphological record and is dependent on precise, accurate and robust dating frameworks.
Alastair M. Curry, David Small, Oliver T. Bartlett, Jonathan Newitt   +3 more
wiley   +1 more source

Extreme events induced by climate change alter nectar offer to pollinators in cross pollination-dependent crops. [PDF]

Sci Rep
Frigero MLP, Boaro CSF, Galetto L, Tunes P, Guimarães E.   +4 more
europepmc   +1 more source

"Artists have their own ideas of how they will dress for the artist's ball. Stan Cross is going to the ball as Dick Whittington. his childhood impressions of Dick was obviously aided by the pantomime version" [picture] /

, 1900
Part of the Stan Cross Archive of cartoons and drawings, 1912-1974.; Inscription: "Stan Cross"--In ink. "Artists have their own ideas of how they will dress for the artist's ball. Stan Cross is going to the ball as Dick Whittington.
Cross, Stan, 1888-1977.
core  

Responses of primary producers, anoxia, and chemical feedback to Late Glacial climate change: Insights from a paired lake approach

Journal of Quaternary Science, EarlyView.
Abstract Worldwide, lacustrine ecosystems are threatened by eutrophication and deoxygenation. Both processes are driven by the combined effects of human activities and climate change. Understanding the pre‐anthropogenic nexus between warming, eutrophication, deoxygenation, and related feedback is essential to determine how lakes respond to rapid ...
Noé R.M.M. Schmidhauser, Stan J. Schouten, Petra Zahajská, Andrea Lami, Jacqueline F.N. van Leeuwen, Rik Tjallingii, Hendrik Vogel, Martin Grosjean   +7 more
wiley   +1 more source

Comparative stigmatic transcriptomics reveals self and cross pollination responses to heteromorphic incompatibility in Plumbago auriculata Lam. [PDF]

Front Genet
Hu D, Lin D, Yi S, Gao S, Lei T, Li W, Xu T.   +6 more
europepmc   +1 more source

Unfertilized ovary pushes wheat flower open for cross-pollination. [PDF]

J Exp Bot, 2018
Okada T, Jayasinghe JEARM, Nansamba M, Baes M, Warner P, Kouidri A, Correia D, Nguyen V, Whitford R, Baumann U.   +9 more
europepmc   +1 more source

Erection and maintenance instructions for Southern Cross 'Z' pattern windmills.

, 1950
Information from a researcher suggests that this manual may be for the "IZ" pattern windmills, which were introduced during the 1950s.; Electronic reproduction. Canberra, A.C.T. : National Library of Australia, 2011.Instruction manual for Southern Cross '
Southern Cross Windmills & Engines.
core  

Carbon isotope geochemistry of organic matter in volcanic paleosols constrains paleo‐environmental variations

Journal of Quaternary Science, EarlyView.
ABSTRACT The Fiorano quarry paleosol developed within the Colli Albani volcanic district (Italy) in the time interval bracketed by the deposition of the Pozzolanelle pyroclastic‐flow unit (365 ± 4 ka) and the emplacement of the Capo di Bove lava flow (277 ± 2 ka).
Eduardo Di Marcantonio, Luca Aldega, Luigi Dallai, Mario Gaeta, Fabrizio Marra   +4 more
wiley   +1 more source