Results 101 to 110 of about 984,306 (333)

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

Bloom

open access: yes, 1998
Butterfly Brown groundedness physicality passion Butterfly White awareness acceptance willingness Butterfly Blue longing humility gratitude In describing how I feel as a physical being, I draw from an experience of spiritual unfolding, which I compare to blooming.
Carson, Jan, author   +1 more
openaire   +1 more source

Social Entrepreneurship Collaboratory: (SE Lab): A University Incubator for a Rising Generation of Leading Social Entrepreneurs [PDF]

open access: yes, 2006
How can universities help create, develop and sustain a rising generation of social entrepreneurs and their ideas? What new forms of learning environments successfully integrate theory and practice?
Gordon Bloom
core  

Planktonic Cyanobacteria of the tropical karstic lake Lagartos from the Yucatan Peninsula, Mexico Las cianobacterias planctónicas del lago tropical cárstico Lagartos de la Península de Yucatán, México

open access: yesRevista de Biología Tropical, 2013
The tropical karstic lakes on the Mexican Caribbean Sea coast are numerous. However, there is an enormous gap of knowledge about their limnological conditions and micro-algae communities. In the present study, surface water samples were collected monthly
Francisco Valadez   +3 more
doaj  

Impacts of the 2014 severe drought on the Microcystis bloom in San Francisco Estuary.

open access: yesHarmful Algae, 2017
The increased frequency and intensity of drought with climate change may cause an increase in the magnitude and toxicity of freshwater cyanobacteria harmful algal blooms (CHABs), including Microcystis blooms, in San Francisco Estuary, California.
P. Lehman   +5 more
semanticscholar   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Building Better Programs for Disconnected Youth [PDF]

open access: yes, 2013
Nationally, more than one in four high school freshmen does not graduate in four years; in the 50 largest U.S. cities, the dropout rate is closer to 50 percent.
Dan Bloom
core  

Stochastic dynamics of phycocyanin in years of contrasting phosphorus load

open access: yesEcosphere
Resilience, measured by the distribution of passage times between alternate states, indicates persistence of a state in stochastic dynamic systems such as blooms of cyanobacteria in lakes.
Stephen R. Carpenter, William A. Brock
doaj   +1 more source

Responses of Different Morphological Cells of Phaeocystis globosa to UV-B Radiation

open access: yesJournal of Marine Science and Engineering
Phaeocystis globosa is an important member of the plankton community and was considered to be a typical bloom-forming algae. Its life cycle is variable, comprising both solitary and colony cells. The growth process of P.
Wei Wei, Jie Li, Caibi Lan, Junxiang Lai
doaj   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

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