Results 71 to 80 of about 112,775 (298)

Pleistocene preserve: a population growth problem of mammoth proportions

Evolution: Education and Outreach, 2019
A number of processes that involve large numbers are critical to civic scientific literacy, including many biological topics. Understanding the basic causes of such large-scale processes, such as population growth, speciation, and extinction, are key to ...
Thomas R. Beatman, R. Joel Duff
doaj   +1 more source

Dynamics Analysis of a Stochastic Hybrid Logistic Model with Delay and Two-Pulse Perturbations

Complexity, 2020
In this paper, we propose and discuss a stochastic logistic model with delay, Markovian switching, Lévy jump, and two-pulse perturbations. First, sufficient criteria for extinction, nonpersistence in the mean, weak persistence, persistence in the mean ...
Haokun Qi, Hua Guo
doaj   +1 more source

Clumpy Cold Dark Matter and biological extinctions

Physics Letters B, 1996
Compressed PostScript (filename.ps.Z), 8 pages, including 2 ...
openaire   +2 more sources

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

ANALYSIS OF ANTHROPOGENICALLY INDUCED CHANGES IN ECOSYSTEM COMPONENTS IN THE KATUN RECREATIONAL AREA OF THE ALTAI REPUBLIC, RUSSIAN FEDERATION [PDF]

Geo Journal of Tourism and Geosites, 2019
The aim of the research is a comprehensive evaluation of the character of the impact of recreational activity and tourism on the biological communities of the Republic of Altai.
Peter Yu. MALKOV, Tatyana N. KURILENKO, Maria G. SUKHOVA, Olga V. ZHURAVLEVA, Alexander I. MINAEV   +4 more
doaj   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Societal extinction of species

, 2022
The ongoing global biodiversity crisis not only involves biological extinctions, but also the loss of experience and the gradual fading of cultural knowledge and collective memory of species. We refer to this phenomenon as ‘societal extinction of species’
Gaston, Kevin J, Firth, Josh A, Gaston, Kevin J., Correia, Ricardo A., Jeschke, Jonathan M., Correia, Ricardo A, Ladle, Richard J., Soriano-Redondo, Andrea, Bonaiuto, Marino, Sherren, Kate, Gaspar Verissimo, Diogo, Jarić, Ivan, Heger, Tina, Soga, Masashi, Ladle, Richard J, Firth, Josh A., Brook, Barry W., Roll, Uri, Brook, Barry W, Roberts, David L, Veríssimo, Diogo, Meinard, Yves, Roberts, David L., Jeschke, Jonathan M, Courchamp, Franck   +24 more
core   +2 more sources

Chiral Microneedle Arrays With Terahertz Chiroptical Activity With Chiral‐Plasmon‐Chiral‐Phonon Resonance

Advanced Materials, EarlyView.
ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee, Hong Ju Jung, John Kim, Bum Chul Park, Caio V. C. R. da Silva, André F. de Moura, Nicholas A. Kotov   +6 more
wiley   +1 more source

Extinction risk of European bryophytes predicted by bioclimate and traits

Extinction risk is not randomly distributed among species but depends on species traits, their relationship to climate and land use, and corresponding threats by global change.
Bisang, Irene,, Nobis, Michael P, van Zuijlen, Kristel,, Nobis, Michael P,, Bergamini, Ariel, Bergamini, Ariel,, van Zuijlen, Kristel, Bisang, Irene   +7 more
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source