Results 101 to 110 of about 1,908,555 (207)
Light and productivity of phytoplankton in polar marine ecosystems: a physiological view [PDF]
, 1991 This study deals with the modeling of photosynthesis and growth of polar phytoplankton and variations in relevant parameters. Polar regions are characterised by low sun elevations (< 40?50°), extreme seasonal variations in irradiance and day length, and ...
Slagstad, Dag, Sakshaug, Egil
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FEBS Open Bio, EarlyView.Human ABCE1 cannot functionally replace its yeast ortholog. Yeast–human chimera analysis identified NBD1 as a major interspecies barrier. Genetic screening yielded hABCE1 revertants that rescue yeast viability but fail to suppress aberrant translation reinitiation in the 3′ UTR.
Eriko Nakata +3 more
wiley +1 more source
Polar Code Design for Irregular Multidimensional Constellations
IEEE Access, 2017 Polar codes, ever since their introduction, have been shown to be very effective for various wireless communication channels. This, together with their relatively low implementation complexity, has made them an attractive coding scheme for wireless ...
Philip R. Balogun +3 more
doaj +1 more source
Foreword: Oslo Science Conference, 8-12 June 2010: selected IPY papers [PDF]
, 2011 Billed as ‘‘the largest polar gathering ever’’, the Oslo Science Conference, held in June 2010, marked the conclusion of the fourth International Polar Year (IPY).As a country with management responsibilities for areas in both the Antarctic and the ...
Goldman, Helle
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FEBS Open Bio, EarlyView.During the current opioid crisis, the majority of overdose deaths are attributed to ultra‐potent synthetic opioids, such as fentanyl. While fentanyl exerts its action via opioid receptors, we propose that potassium channels in the brain blood vessels may also sense fentanyl.
Shiwani Thapa +4 more
wiley +1 more source
White-beaked dolphins trapped in the ice and eaten by polar bears [PDF]
, 2015 Polar bears (Ursus maritimus) depend on sea ice, where they hunt ice-associated seals. However, they are opportunistic predators and scavengers with a long list of known prey species.
Agnès Brenière +7 more
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Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level
Aging and Cancer, EarlyView.This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley +1 more source
Mapping Design for
IEEE Access, 2019 This paper proposes a mapping design for bit-interleaved polar coded modulation (BIPCM) systems with belief propagation (BP) decoding. We first introduce a two-layer bipartite graph to represent BIPCM, where a new mapping graph linking polar graph to ...
Qingping Yu +5 more
doaj +1 more source
, 2011 These two edited volumes, which cover much of the same ground, both begin from a common premise: polar tourism, as its been experienced by wealthy travellers for over a century, has a very definite shelf life.
P.J. Capelotti, Capelotti, P. J.
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The elephant in the room: article 234 of the Law of the Sea Convention and the Polar Code as an incompletely theorised agreement [PDF]
, 2018 The International Maritime Organization’s (IMO) International Code for Ships Operating in Polar Waters (Polar Code) is a new chapter in the regulation of Arctic shipping.
Bognar, Dorottya, Dorottya Bognar
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