Results 151 to 160 of about 8,610,015 (269)

On the Relation Between Sunspot Area and Sunspot Number [PDF]

open access: yes, 2006
Often, the relation between monthly or yearly averages of total sunspot area, A, and sunspot number, R, has been described using the formula A = 16.7 R. Such a simple relation, however, is erroneous. The yearly ratio of A/R has varied between 5.3 in 1964
Hathaway, David H., Wilson, Robert M.
core  

Long‐term stability of transcrestal sinus augmentation

open access: yesPeriodontology 2000, EarlyView.
Abstract Transcrestal sinus augmentation has emerged as a minimally invasive alternative to lateral window techniques for vertical bone augmentation in the edentulous maxilla. Since its early introduction and modification over the last several decades, this technique has demonstrated predictable outcomes for implant placement in regions with limited ...
Sandra H. Stuhr   +4 more
wiley   +1 more source

Teacher Perspectives of Student Engagement in Data Practice Instruction: Two Classroom Conditions

open access: yesSchool Science and Mathematics, EarlyView.
ABSTRACT This study examines high school science teachers' perceptions of student engagement in data practices across two instructional contexts: a scaffolded, student‐centered environment using the Science Practices Innovation Notebook (SPIN) and a business‐as‐usual (BAU) teacher‐led investigation.
Erin Peters‐Burton   +4 more
wiley   +1 more source

Bilateral simultaneous cataract surgery and intraocular lens implantation in an adult female chimpanzee (Pan troglodytes) inducing monovision

open access: yesVeterinary Ophthalmology, Volume 28, Issue 2, Page 457-464, March 2025.
Abstract Background Cataract is the major cause of visual impairment in humans. Phacoemulsification with intraocular lens (IOL) implantation is the standard technique for cataract treatment with a high success rate. In a few cases, the surgical cataract procedure and lens implantation have been applied in non‐human primates.
F. Notting   +4 more
wiley   +1 more source

Techniques for subretinal injections in animals

open access: yesVeterinary Ophthalmology, Volume 28, Issue 2, Page 506-518, March 2025.
Abstract Subretinal injections are not commonly performed during clinical treatment of animals but are frequently used in laboratory animal models to assess therapeutic efficacy and safety of gene and cell therapy products. Veterinary ophthalmologists are often employed to perform the injections in the laboratory animal setting, due to knowledge of ...
Ryan F. Boyd, Simon M. Petersen‐Jones
wiley   +1 more source

Effect of chronic high‐altitude hypoxia on retinal vascular phenotype, choroidal and retinal vasoreactivity in Peruvian highlanders

open access: yesExperimental Physiology, EarlyView.
Abstract High‐altitude chronic hypoxia can induce excessive erythrocytosis (EE, defined as a haemoglobin concentration of ≥21 g/dL in men), leading to hyperviscosity and promoting endothelial dysfunction. We aimed to assess whether EE affects the retinal vascular phenotype and the ophthalmological vascular response to CO2.
Aymeric Paillisser   +12 more
wiley   +1 more source

Periodicities in sunspot numbers.

open access: yesJournal of geomagnetism and geoelectricity, 1985
KANE, R. P., TRIVEDI, N. B.
openaire   +2 more sources

South Africa's Inflation: Monetary or Fiscal

open access: yesSouth African Journal of Economics, Volume 94, Issue 4, December 2026.
ABSTRACT Conventional macroeconomics has viewed inflation as a monetary phenomenon through the quantity theory of money. Ever‐increasing sovereign debt globally has caused concern amongst economists. These concerns follow not from the ability of governments to repay their debt, but rather the impact of sizeable debt portfolios on price levels.
Guangling Liu, Christopher D. Solomon
wiley   +1 more source

Histidine Supplementation Stabilizes Hearing and Vision and Improves Growth in HARS1‐Related Autosomal Recessive Disorder Associated With Usher‐Like Symptoms

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 10, Page 2289-2308, October 2026.
ABSTRACT Autosomal recessive HARS1‐related disorder (originally described as Usher syndrome type 3B) caused by a homozygous Y454S variant in the histidyl‐tRNA synthetase gene (HARS1) is characterized by progressive sensorineural hearing and vision loss and respiratory deterioration with risk for sudden death following febrile illnesses.
Victoria Mok Siu   +23 more
wiley   +1 more source

A Causal Examination of the Solar Influence on Holocene Climate

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Variations in Total Solar Irradiance (TSI) have long been hypothesized to influence global mean surface temperature (GMST) on multidecadal to millennial timescales, but empirical evidence has remained elusive. Here, we explore the link between solar variability and climate over the pre‐industrial Holocene, when anthropogenic influences were ...
Jordan P. Landers   +5 more
wiley   +1 more source

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