A New Method for Real-Time Measuring the Temperature-Dependent Dielectric Constant of the Silicone Oil

SummaryThe uptake and binding of antimitotic alkaloid colchicine has been demonstrated in washed preparations of human platelets. A silicone oil technique was adapted so that both uptake and binding of 14C-colchicine were examined in the same platelet preparations. The time dependence and amount of colchicine taken up and bound by different platelet preparations during a 90 to 120 min incubation period were highly reproducible. Both colchicine uptake and binding by intact platelets, and colchicine binding by preparations of lysed platelets were specific and temperature dependent. Colchicine uptake was slowly reversible. Magnesium and GTP enhanced colchicine binding by lysed platelet preparations but calcium decreased binding.Exposure of platelets to either cold (4° C) or to thrombin, which disrupt platelet microtubules, produced significant increases in colchicine uptake and binding. The thrombin effect was maximal at 37° C and resulted in a greater increase in uptake and binding than that produced by either cold treatment alone or, by cold treatment followed by incubation with thrombin at 37° C. The amount of increase in uptake and binding produced by thrombin was independent of both thrombin (1–5 Units/109 platelets) and colchicine concentrations (1–50 × 10−6M).It is postulated that thrombin may initiate the formation, or make available, colchicine binding sites (microtubule subunits) within platelets.

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Axial length measurements before and after removal of silicone oil: a new method to correct the axial length of silicone-filled eyes for optical biometry

Ophthalmic and Physiological Optics ◽

10.1111/j.1475-1313.2009.00636.x ◽

2009 ◽

Vol 29 (4) ◽

pp. 449-457 ◽

Cited By ~ 4

Author(s):

Kai Wang ◽

Meng-Ke Yuan ◽

Yan-Rong Jiang ◽

Yong-Zhen Bao ◽

Xiao-Xin Li

Keyword(s):

Axial Length ◽

Silicone Oil ◽

New Method ◽

Optical Biometry ◽

Length Measurements ◽

Before And After

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Atomistic prediction on the configuration- and temperature-dependent dielectric constant of Be0.25Mg0.75O superlattice as a high-κ dielectric layer

Journal of Materials Chemistry C ◽

10.1039/d0tc05071g ◽

2021 ◽

Author(s):

Gyuseung Han ◽

In Won Yeu ◽

Kun Hee Ye ◽

Seung-Cheol Lee ◽

Cheol Seong Hwang ◽

...

Keyword(s):

Dielectric Constant ◽

Dft Calculations ◽

Bond Length ◽

Dielectric Layer ◽

Room Temperature ◽

High Dielectric Constant ◽

Temperature Dependent ◽

High Dielectric

Through DFT calculations, a Be0.25Mg0.75O superlattice having long apical Be–O bond length is proposed to have a high bandgap (>7.3 eV) and high dielectric constant (∼18) at room temperature and above.

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Simple, cost-effective technique for portable digital eletrocorticography

Arquivos de Neuro-Psiquiatria ◽

10.1590/s0004-282x2000000300005 ◽

2000 ◽

Vol 58 (2B) ◽

pp. 424-427 ◽

Cited By ~ 1

Author(s):

PAULO R. M. DE BITTENCOURT ◽

MARCOS C. SANDMANN ◽

MARLUS S. MORO ◽

JOÃO C. DE ARAÚJO

Keyword(s):

Real Time ◽

Epilepsy Surgery ◽

Vascular Malformations ◽

Cost Effective ◽

New Method ◽

Cortical Lesions ◽

Effective Technique ◽

Seizure Disorders ◽

Operational Costs ◽

Cost Effective Technique

We revised 16 patients submitted to epilepsy surgery using a new method of digital, real-time, portable electrocorticography. Patients were operated upon over a period of 28 months. There were no complications. The exam was useful in 13 cases. The low installation and operational costs, the reliability and simplicity of the method, indicate it may be useful for defining the epileptogenic regions in a variety of circumnstances, including surgery for tumors, vascular malformations, and other cortical lesions associated with seizure disorders.

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A new method for the determination of the dielectric constant in photoconductors

Il Nuovo Cimento B ◽

10.1007/bf02711422 ◽

1966 ◽

Vol 46 (2) ◽

pp. 210-216 ◽

Cited By ~ 2

Author(s):

A. Carrelli ◽

F. Fittipaldi ◽

L. Pauciulo

Keyword(s):

Dielectric Constant ◽

New Method

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Emotion prediction errors guide socially adaptive behavior

10.31234/osf.io/azeyk ◽

2021 ◽

Author(s):

Joseph Heffner ◽

Jae-Young Son ◽

Oriel FeldmanHall

Keyword(s):

Decision Making ◽

Real Time ◽

Adaptive Behavior ◽

Emotional Response ◽

New Method ◽

Prediction Errors ◽

Emotional Experiences ◽

Past Work ◽

Reward Prediction ◽

Expected Outcomes

People make decisions based on deviations from expected outcomes, known as prediction errors. Past work has focused on reward prediction errors, largely ignoring violations of expected emotional experiences—emotion prediction errors. We leverage a new method to measure real-time fluctuations in emotion as people decide to punish or forgive others. Across four studies (N=1,016), we reveal that emotion and reward prediction errors have distinguishable contributions to choice, such that emotion prediction errors exert the strongest impact during decision-making. We additionally find that a choice to punish or forgive can be decoded in less than a second from an evolving emotional response, suggesting emotions swiftly influence choice. Finally, individuals reporting significant levels of depression exhibit selective impairments in using emotion—but not reward—prediction errors. Evidence for emotion prediction errors potently guiding social behaviors challenge standard decision-making models that have focused solely on reward.

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