Intraocular Pressure Considerations

Yücel, Yeni H.; Gupta, Neeru

doi:10.1007/978-3-031-18440-6_7

Cited by 4 publications

(3 citation statements)

References 190 publications

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“…This laser had an output of 100 mJ per pulse at a pulse repetition rate of 10 Hz, capable of imaging at optical wavelengths of 680 nm to 980 nm with a 2 nm step size. The duration of each laser pulse was approximately 8 nanoseconds and the imaging chamber was accompanied by an array of ultrasound transducers model [77].…”

Section: Msot System and Viewmsot Softwarementioning

confidence: 99%

Optimizing Photoacoustic Measurement of Lymphatic Drainage of Cerebrospinal Fluid in Pigmented Mice for Microgravity Experiments

Mian

2024

Preprint

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<p>Non-invasive dynamic imaging techniques are needed to study the lymphatic drainage of cerebrospinal fluid, whose role in various diseases is actively being investigated. The optimized set of optical wavelengths and spectral unmixing algorithm is pursued in this study to accurately quantify the lymphatic drainage in pigmented mice by multispectral optoacoustic tomography. Several optical wavelength sets and spectral unmixing algorithms for multispectral photoacoustic tomography with a near-infrared tracer were compared. The combination of 11 wavelengths, selected based on absorption spectra of chromophores and exclusion of melanin from the linear regression unmixing algorithm, provided the best spatial similarity to reference images obtained using 151 wavelengths. Furthermore, the 11 wavelengths without melanin in linear regression unmixing algorithm showed the most accurate quantification of mean pixel intensity of the tracer in the neck lymph nodes and its change, compared to other sets of wavelengths and unmixing algorithms.</p>

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Section: Msot System and Viewmsot Softwarementioning

confidence: 99%

Optimizing Photoacoustic Measurement of Lymphatic Drainage of Cerebrospinal Fluid in Pigmented Mice for Microgravity Experiments

Mian

2024

Preprint

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“…Kıymet verdikleri misafirlerinin mutlaka buraya oturmasını isterlerdi. Odadaki diğer insanlar ise ocağın etrafında bağdaş kurarak otururdu 81 . Kazaklar arasında uzun süre kalan Radloff'un izlenimlerine göre Kazaklarda büyük ziyafet törenlerinde şeref köşesinde oturma hakkı misafirlerin saygınlık derecesine bağlıydı 82 .…”

Section: Batı Türkistan'da Yemek öNcesi Ve Sonrası Sofra Adabıunclassified

Avrupali Seyyahlarin İzleni̇mleri̇yle 19. Yüzyilda Bati Türki̇stan'da "Türk Mi̇safi̇rperverli̇ği̇"

MEMİŞ

2023

Türk Tarihi Araştırmaları Dergisi

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Gelenek ve görenekler, Türk kültürünü şekillendiren başlıca yapı unsurlarıdır. 19. yüzyılda Batı Türkistan’a yolculuk eden Avrupalı seyyahlar, bu yapı taşlarından biri olan misafirperverlik geleneğine tanık oldular. Misafir oldukları Kazak, Kırgız, Özbek, Türkmen gibi Türk toplumlarında misafirperverliğe özgü gelenek ve görenekleri kendi bakış açılarına göre seyahatnamelerine aktardılar. Genellikle Türk misafirperverliğine özgü karşılama biçimlerine, misafirlerini ağırlandıkları mekanlara, yemek ikramlarına ve bu geleneklerle bütünleşen geleneklere yer verdiler. Zira seyahatleri sırasında bu gelenek çerçevesinde yabancı olmalarına bakılmaksızın samimiyetle ve koşulsuz bir şekilde kabul edilmekteydiler. Çadır, ev veya köy evleri onların ağırlandıkları başlıca mekânlardı. Bu yerlerde misafirler için özel hazırlanan yemeklerin yanı sıra yemek kültürünü şekillendiren gelenekler ve sofra adabı kuralları seyyahların dikkatlerini çeken başlıca hususlardı. Seyyahların Türk misafirperverliğini oluşturan geleneklere dair bu canlı tasvirleri, Batı Türkistan’ın sosyo-kültürel yapısının aydınlanmasına katkı sunacaktır. Bu makalede, pek çok Avrupalı seyyahın seyahatnamelerindeki misafirperverlik geleneğine özgü anlatımlarından yola çıkılarak 19. yüzyılda Batı Türkistan’daki Türk misafirperverliğinin uygulanmasına özgü gelenek, örf ve âdetlerin genel bir çerçevesinin çizilmesi sağlanacaktır. Bununla birlikte 19. yüzyılda Batı Türkistan’da misafir ağırlama geleneklerinin geçmişle olan kültürel bağı vurgulanacaktır. Özellikle de 19. yüzyılda Batı Türkistan’da giden Avrupalı seyyahların misafir olarak nasıl ağırlandığı sorusuna cevap bulunmaya çalışılacaktır.

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“…IOP depends on both ocular hydrodynamics and hemodynamics 12,13 , and its measurements can inform us about both of these highly regulated systems. Although changes in IOP are not included in the definition of SANS, IOP and its hydro-and hemodynamics-determinants may be fundamentally relevant to our understanding and prevention of SANS 14 . The interstitial fluid in the retrobulbar optic nerve within the orbit is influenced by cerebrospinal fluid pressure (CSFP).…”

Section: Fluidsmentioning

confidence: 99%

Eye-brain axis in microgravity and its implications for Spaceflight Associated Neuro-ocular Syndrome

Stern

Yucel

Eulenburg³

et al. 2023

npj Microgravity

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Long-duration human spaceflight can lead to changes in both the eye and the brain, which have been referred to as Spaceflight Associated Neuro-ocular Syndrome (SANS). These changes may manifest as a constellation of symptoms, which can include optic disc edema, optic nerve sheath distension, choroidal folds, globe flattening, hyperopic shift, and cotton wool spots. Although the underpinning mechanisms for SANS are not yet known, contributors may include intracranial interstitial fluid accumulation following microgravity induced headward fluid shift. Development and validation of SANS countermeasures contribute to our understanding of etiology and accelerate new technology including exercise modalities, Lower Body Negative Pressure suits, venous thigh cuffs, and Impedance Threshold Devices. However, significant knowledge gaps remain including biomarkers, a full set of countermeasures and/or treatment regimes, and finally reliable ground based analogs to accelerate the research. This review from the European Space Agency SANS expert group summarizes past research and current knowledge on SANS, potential countermeasures, and key knowledge gaps, to further our understanding, prevention, and treatment of SANS both during human spaceflight and future extraterrestrial surface exploration.

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Intraocular Pressure Considerations

Cited by 4 publications

References 190 publications

Optimizing Photoacoustic Measurement of Lymphatic Drainage of Cerebrospinal Fluid in Pigmented Mice for Microgravity Experiments

Optimizing Photoacoustic Measurement of Lymphatic Drainage of Cerebrospinal Fluid in Pigmented Mice for Microgravity Experiments

Avrupali Seyyahlarin İzleni̇mleri̇yle 19. Yüzyilda Bati Türki̇stan'da "Türk Mi̇safi̇rperverli̇ği̇"

Eye-brain axis in microgravity and its implications for Spaceflight Associated Neuro-ocular Syndrome

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