Results 161 to 170 of about 87,973 (293)

Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics

open access: yesLaser &Photonics Reviews, EarlyView.
The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi   +5 more
wiley   +1 more source

Present-day tropical precipitation and cloud feedbacks determine future equatorial Pacific trends. [PDF]

open access: yesSci Adv
Stevenson S   +6 more
europepmc   +1 more source

Isoetes ×atruensis (Isoetaceae – Lycopodiopsida), a new interspecific sterile hybrid from Rajasthan of Western India

open access: yesNordic Journal of Botany, EarlyView.
Isoetes ×atruensis hyb. nov. is shown to be a triploid (2n = 3× = 33 + 1) sterile interspecific hybrid between diploid (2n = 2× = 22 + 1) I. coromandelina and tetraploid (2n = 4× = 44 + 1) I. rajasthanensis. It has been found in two locations in Rajasthan, India.
Sarvesh Kumar Singh   +4 more
wiley   +1 more source

Rediscovery of Strobilanthes panichanga and discovery of Strobilanthes parryorum (Acanthaceae): two endangered species from the hills of Dima Hasao, Assam, India

open access: yesNordic Journal of Botany, EarlyView.
We report on two species of Strobilanthes Blume. Strobilanthes panichanga (Nees) T.Anderson has been rediscovered in the Dima Hasao district of Assam, India, after a very long gap of 150 years, and Strobilanthes parryorum C.E.C.Fisch has been discovered for the first time in Assam, India.
Kapil Kumar Kemprai, Souravjyoti Borah
wiley   +1 more source

Circulation of SARS-CoV-2 and Co-Infection with <i>Plasmodium falciparum</i> in Equatorial Guinea. [PDF]

open access: yesInfect Dis Rep
López-Farfán D   +12 more
europepmc   +1 more source

Reconstructing Early Human Subsistence in Near Oceania: New Insights From Matenkupkum and Matenbek

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT The colonization of New Ireland ~44–40,000 years ago represents the earliest evidence of human occupation in Near Oceania. Yet, the precise impacts of climatic changes on subsistence strategies during the Late Pleistocene, Last Glacial Maximum, and Holocene remain poorly understood.
Joëlle den Toom   +3 more
wiley   +1 more source

A Deep Learning-Enabled Ionogram Dataset for Detection and Classification of Low-latitude Spread-F Phenomena. [PDF]

open access: yesSci Data
Gao P   +12 more
europepmc   +1 more source

Connecting the distribution and diversification of marine plants

open access: yesOikos, EarlyView.
Integration of the evolutionary history with distribution of extant species is necessary to explain present‐day diversity, particularly for ‘foundation' species, such as seagrasses, which create habitats of socioecological relevance. Here, we resolved if varying evolutionary history of seagrass families has imprinted the distribution ranges of extant ...
Fernando Tuya   +3 more
wiley   +1 more source

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