Results 141 to 150 of about 8,624 (295)

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Sunspot dynamics

open access: yes, 1990
The goal of this research was the understanding of the various oscillatory, transient, and quasi-steady motions in sunspots and the basic structure of a sunspot.
Thomas, John H.
core  

Branch retinal artery occlusion due to patent foramen ovale in a teenager

open access: yesExperimental Physiology, EarlyView.
Abstract This report demonstrates the diagnostic evaluation and clinical management of a 16‐year‐old girl who developed branch retinal artery occlusion secondary to patent foramen ovale. The goal is to increase awareness of this rare presentation in adolescents among clinicians, with a summary of the important clinical features, multimodal imaging ...
Jie Zu   +4 more
wiley   +1 more source

Sunspot velocity fields

open access: yes, 1962
Research in sunspot velocity fields was initiated by Evershed in 1909. He observed that, in general, Fraunhofer lines crossing a sunspot appeared to be equally displaced in wavelength in opposite directions on either aide of the spot, and subsequent ...

core  

Beyond the Ban—Shedding Light on Smallholders' Price Vulnerability in Indonesia's Palm Oil Industry

open access: yesApplied Economic Perspectives and Policy, Volume 48, Issue 3, Page 653-678, July 2026.
ABSTRACT The Indonesian government imposed a palm oil export ban in April 2022 to address rising cooking oil prices. This study explores oil palm smallholders' vulnerability to the policy using descriptive statistics, Lasso, and post‐Lasso OLS regressions.
Charlotte‐Elena Reich   +3 more
wiley   +1 more source

Disrupted Vestibular Nuclei Neuron Development in a Chick Model for Congenital Vestibular Disorders

open access: yesDevelopmental Neurobiology, Volume 86, Issue 3, July 2026.
ABSTRACT Children with syndromic, congenital vestibular disorders (CVDs) form a sac‐like inner ear with missing or truncated semicircular canals and experience delayed motor development with lifelong challenges to maintain posture and balance. How the abnormal inner ear affects downstream central vestibular neural circuitry has not been investigated ...
Elizabeth B. Bogin   +5 more
wiley   +1 more source

Comparative Cochlear–Vestibular Aging Reveals Age‐Aligned Mitochondrial Ultrastructural Burden, Mitophagy–Autophagy Remodeling, Synaptic Uncoupling, and Sensory Functional Decline

open access: yesAging Cell, Volume 25, Issue 7, July 2026.
This study maps age‐aligned cochlear and vestibular decline in SAMP8 mice, linking functional impairment with synaptic vulnerability, mitochondrial ultrastructural injury, and autophagy/mitophagy–lysosome transcriptional remodeling. The findings provide an integrated framework for understanding shared inner‐ear aging trajectories.
Jingyi Xie   +14 more
wiley   +1 more source

Sunspot Number Variations [PDF]

open access: yes
In this activity students find the patterns that emerge when sunspot numbers are plotted over a period of time. Students learn about sunspot variations and the solar cycle, and are able to predict future solar minimums and solar maximums.
Beverly Meier
core  

The technical and practical implementation of fundus photography in equids

open access: yesEquine Veterinary Education, Volume 38, Issue 7, Page 371-381, July 2026.
Summary Background Fundus photography is an important diagnostic tool in human and veterinary medicine. Advances in research are increasing its accessibility in human medicine. However, there is a lack of studies on modern fundus photography in animals, particularly in horses. Objectives To assess the use of a portable fundus camera developed for human
I. Vierling, B. Wollanke, V. Franzen
wiley   +1 more source

Fluctuations in Overlapping Generations Economies [PDF]

open access: yes
In the present paper stationary pure-exchange overlapping generations economies with l goods per date and m consumers per generation are considered. It is shown that for an open and dense set of utility functions there exist endowment vectors such that n-
Mich Tvede
core  

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