Chemical evolution of galaxies with an environment-dependent stellar initial mass function [PDF]
, 2021 Zhiqiang Yan
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A hitchhiker's guide to modern, practical cyanobacterial taxonomy
Journal of Phycology, EarlyView.Abstract There has been an explosion of new Cyanobacterial taxa described within the last two decades. Cyanobacteria exhibit incredible ecological versatility and morphological variability, and thousands of species have already been described using “traditional” approaches (e.g., morphological features).
Petr Dvořák +12 more
wiley +1 more source
The evolution of the stellar populations in low surface brightness galaxies [PDF]
, 2000 We investigate the star formation history and chemical evolution of low surface brightness (LSB) disk galaxies by modelling their observed spectro-photometric and chemical properties using a galactic chemical and photometric evolution model incorporating
. +4 more
core +3 more sources
Noble gases and nitrogen in material from asteroid Bennu
Meteoritics &Planetary Science, EarlyView.Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
wiley +1 more source
Gas flows and the chemical evolution of galaxies - III. Graphical analysis and secondary elements [PDF]
, 1999 J. Köppen, M. G. Edmunds
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Anxious Projections: Mass Hysteria and the Problem of Interpretation
Medical Anthropology Quarterly, EarlyView.Abstract Stories of “mass hysteria” among teenage girls have often graced the headlines of Nepal's local and national newspapers, creating a public spectacle of a strange and mysterious form of affliction. Treatments include both shamanic rituals and psychosocial interventions, a new therapeutic modality that has gained prominence over the past two ...
Aidan Seale‐Feldman
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1000–10,000 M⊙ Primordial Stars Created the Nitrogen Excess in GS 3073 at z = 5.55
The Astrophysical Journal LettersThe advent of the James Webb Space Telescope has revealed a wealth of new galaxies just a few hundred Myr after the Big Bang, a few of which exhibit unusual N/O ratios that are difficult to explain with stellar populations today.
Devesh Nandal +3 more
doaj +1 more source
A New Chemodynamical Tool to Study the Evolution of Galaxies in the Local Universe: a Quick and Accurate Numerical Technique to Compute the Gas Cooling Rate for any Chemical Composition [PDF]
, 2007 N. Champavert, H. Wozniak
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Molecular Ecology, EarlyView.ABSTRACT Rocky reefs may shift between two distinct stable states: productive algal forests, characterised by high abundance and biodiversity of macrofauna, and impoverished barrens, dominated by overgrazing sea urchins. Barren states may persist despite the recovery of adult sea urchin predators, suggesting additional stabilising mechanisms.
Alberto Sutera +7 more
wiley +1 more source
Molecular Ecology, EarlyView.ABSTRACT Fairyflies (Hymenoptera: Chalcidoidea: Mymaridae) are a diverse but taxonomically understudied group of parasitoid wasps that attack the eggs of other insects. Being among the very smallest of all insects, they are often ignored in biodiversity surveys despite being one of the most abundant microhymenoptera in many habitats.
Catherine Hébert, Colin Favret
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