Results 201 to 210 of about 972,865 (242)

Efficient Polarization‐Entangled Photon‐Pair Generation by a Fiber‐In‐Line van der Waals Material

Advanced Science, EarlyView.
Telecom‐wavelength polarization‐entangled photon pairs are generated in a van der Waals‐material‐integrated all‐fiber device via spontaneous parametric down‐conversion. The demonstrated fiberized quantum light source bridges emerging 2D nonlinear materials and practical quantum photonic systems, opening new opportunities for scalable fiber‐based ...
Jungseok Choi, Seongju Ha, Seungjae Lim, Joohyeon Ahn, Jaekyoung Kim, Jong Hyuk Yim, Nam Hun Park, Youngdong Yoo, Jae‐Ung Lee, Hee Su Park, Sang Min Lee, Dong‐Il Yeom   +11 more
wiley   +1 more source

Chromatin Packing Domain Engineering Through the Manipulation of Nuclear Cationic States

Advanced Science, EarlyView.
Manipulation of intranuclear divalent cation concentrations rapidly and reversibly remodels chromatin packing domains in living cells. Magnesium depletion disrupts domain compaction, heterochromatin organization, and transcriptional regulation, whereas magnesium loading promotes more compact and stable domains.
Cody L. Dunton, Carrillo Paola Gonzalez, Luay Almassalha, Wing Shun Li, Ruyi Gong, Nicolas Acosta, I Chae Ye, Jane Frederick, Christopher Hogg, Saira John, J. A. Gareth Williams, Rikkert J. Nap, Igal Szleifer, Vadim Backman   +13 more
wiley   +1 more source

A Rigid–Foldable Kirigami‐Inspired Metamorphic Mechanism With Programmable Motion Modes and Self‐Locking

Advanced Science, EarlyView.
Geometric constraint reconfiguration enables a rigid–foldable kirigami‐inspired mechanism to switch between twisting, directional translation, and self‐locking states. By encoding multifunctionality directly into its architecture, the mechanism achieves multimodal motion and passive locking without reassembly, providing a compact platform for adaptive ...
Jianlin Wang, Zhongmin Song, Ketao Zhang
wiley   +1 more source

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

Advanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li, Zhongguo Ren, Yiliang Lin, Xianfeng Xia, Tianlong Li, Kai Fung Chan, Philip Wai Yan Chiu, Wei Peng Yong, Mengmeng Sun   +8 more
wiley   +1 more source

Refractive errors and schizophrenia

Schizophrenia Research, 2009
Refractive errors (myopia, hyperopia and amblyopia), like schizophrenia, have a strong genetic cause, and dopamine has been proposed as a potential mediator in their pathophysiology. The present study explored the association between refractive errors in adolescence and schizophrenia, and the potential familiality of this association.The Israeli Draft ...
Caspi, Asaf, Vishne, Tali, Reichenberg, Abraham, Weiser, Mark, Dishon, Ayelet, Lubin, Gadi, Shmushkevitz, Motti, Mandel, Yossi, Noy, Shlomo, Davidson, Michael   +9 more
openaire   +4 more sources

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Refractive error and glaucoma

Acta Ophthalmologica Scandinavica, 2001
ABSTRACT.Purpose: To study the association between refractive error, glaucoma damage and IOP in a large population.Methods: We examined 32,918 citizens of the city of Malmö, Sweden, 57–79 years of age, searching for individuals with undetected glaucoma. Refraction was measured with autorefractors.
K, Grødum, A, Heijl, B, Bengtsson
openaire   +2 more sources

Management of refractive errors

BMJ, 2010
Uncorrected refractive error accounts for half of the global burden of avoidable vision impairment and nearly a third of the global burden of avoidable blindness.1 2 Globally, 153 million people have visual impairment or are blind due to uncorrected refractive error and the majority live in low income countries.1 Additionally, 410 million people have ...
Gillian M, Cochrane, Rènée, du Toit, Richard T, Le Mesurier   +2 more
openaire   +2 more sources

Origins of Refractive Errors: Environmental and Genetic Factors [PDF]

Annual Review of Vision Science, 2019
Refractive errors are the product of a mismatch between the axial length of the eye and its optical power, creating blurred vision. Uncorrected refractive errors are the second leading cause of worldwide blindness.
Christine Wildsoet
exaly   +2 more sources

Refraction and refractive errors in an elderly population

Ophthalmic and Physiological Optics, 1988
The data for this paper were collected during a two‐year study of the elderly in the market town of Melton Mowbray. The randomly selected subjects, aged 76 years of age and older, were found to be on average + 1.33 D hypermetropic and the average cylinder power was 0.82 D.
J R, Lavery, J M, Gibson, D E, Shaw, A R, Rosenthal   +3 more
openaire   +2 more sources

Refractive Errors in Children

Pediatric Clinics of North America, 1987
Optical correction of refractive errors in infants and young children is indicated when the refractive errors are sufficiently large to cause unilateral or bilateral amblyopia, if they are impairing the child's ability to function normally, or if the child has accommodative strabismus.
openaire   +2 more sources