Results 11 to 20 of about 66,368 (308)

A New Dyslexia Reading Method and Visual Correction Position Method

open access: yesGlobal Pediatric Health, 2017
Pediatricians and educators may interact daily with several dyslexic patients or students. One dyslexic author accidently developed a personal, effective, corrective reading method. Its effectiveness was evaluated in 3 schools.
George T. Manilla MD, Joe de Braga MEd
doaj   +1 more source

Vegetation dynamics during last 35,000 years at a cold desert locale: preferential loss of forbs with increased aridity

open access: yesEcosphere, 2017
Paleoecological records are an important source of data to better understand ecological responses to climate. To help understand vegetation–climate relationships in the Great Basin cold desert of North America, we analyzed 154 plant taxa from 52 fossil ...
Robert S. Nowak   +2 more
doaj   +1 more source

Devonian upper ocean redox trends across Laurussia: Testing potential influences of marine carbonate lithology on bulk rock I/Ca signals

open access: yesFrontiers in Marine Science, 2022
The Devonian is characterized by major changes in ocean-atmosphere O2 concentrations, colonialization of continents by plants and animals, and widespread marine anoxic events associated with rapid δ13C excursions and biotic crises. However, the long-term
Ruliang He   +5 more
doaj   +1 more source

The Effect of Seeding Treatments and Climate on Fire Regimes in Wyoming Sagebrush Steppe

open access: yesFire, 2021
Wildfire size and frequency have increased in the western United States since the 1950s, but it is unclear how seeding treatments have altered fire regimes in arid steppe systems.
Chris Bowman-Prideaux   +2 more
doaj   +1 more source

Chemoenzymatic Synthesis of Well‐Defined α(2,8)‐ and α(2,9)‐Linked Oligosialosides

open access: yesAngewandte Chemie, EarlyView.
Well‐defined α(2,8)‐ and α(2,9)‐linked oligosialic acids of different lengths can be prepared by employing recombinant bacterial polysialyltransferases in combination with chemically modified CMP‐Neu5Ac derivatives. After transfer, a sialoside is formed bearing an artificial entity, which blocks further glycosylation.
Jelle A. Fok   +4 more
wiley   +2 more sources

Understory Vegetation Change Following Woodland Reduction Varies by Plant Community Type and Seeding Status: A Region-Wide Assessment of Ecological Benefits and Risks

open access: yesPlants, 2020
Woodland encroachment is a global issue linked to diminished ecosystem services, prompting the need for restoration efforts. However, restoration outcomes can be highly variable, making it difficult to interpret the ecological benefits and risks ...
Thomas A. Monaco, Kevin L. Gunnell
doaj   +1 more source

Taxonomic Description of Stenodiplosis tectori n. sp. (Diptera: Cecidomyiidae), a Seed Parasite of Cheatgrass, Anisantha tectorum, Based on Morphological and Mitochondrial DNA Data

open access: yesInsects, 2021
Cheatgrass is an annual grass species from Eurasia that has become invasive in much of western North America. It has been implicated in recent increases in the frequency, size, and intensity of wildfires, contributing to severe economic, environmental ...
Brian G. Rector   +6 more
doaj   +1 more source

Radionuclides in the Great Lakes Basin

open access: yesEnvironmental Health Perspectives, 1995
The Great Lakes basin is of radiologic interest due to the large population within its boundaries that may be exposed to various sources of ionizing radiation. Specific radionuclides of interest in the basin arising from natural and artificial sources include 3H, 14C, 90Sr, 129I, 131I, 137Cs, 222Rn, 226Ra, 235U, 238U, 239Pu, and 241Am.
B A, Ahier, B L, Tracy
openaire   +2 more sources

Spatiotemporal Assessment and Driving Factors of Ecosystem Health: A Case Study of Two Provinces in Southern China

open access: yesBiology
The concept of ecosystem health (EH), proposed in the 1980s [...]
Yujun Cai   +3 more
doaj   +1 more source

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