scholarly journals Results from the OSQAR photon-regeneration experiment: No light shining through a wall

2008 ◽  
Vol 78 (9) ◽  
Author(s):  
Pierre Pugnat ◽  
Lionel Duvillaret ◽  
Remy Jost ◽  
Guy Vitrant ◽  
Daniele Romanini ◽  
...  
Keyword(s):  
Regeneration Experiment

Salt discriminability is related to number of regenerated taste buds after chorda tympani nerve section in rats

1995 ◽  
Vol 269 (1) ◽  
pp. R141-R153 ◽  
Author(s):  
S. J. St John ◽  
S. Markison ◽  
A. C. Spector
Keyword(s):  
Discrimination Task ◽  
Discrimination Performance ◽  
Taste Buds ◽  
Chorda Tympani ◽  
Chorda Tympani Nerve ◽  
Nerve Section ◽  
Regeneration Experiment

Transection of the chorda tympani nerve (CTX) impairs taste-guided discrimination of NaCl from KCl in rats. We wanted to determine whether this discrimination recovers after chorda tympani regeneration. Experiment 1 showed that few taste buds regenerated 14 days after CTX, whereas substantial regeneration occurred 42 days after surgery. Experiment 2 demonstrated that rats trained before CTX could clearly discriminate the two salts when tested starting 49 days after surgery, whereas rats tested starting 8 days after surgery were severely impaired in this task. Rats tested starting 28 days after CTX were unimpaired, moderately impaired, or severely impaired on the discrimination task. Overall, discrimination performance was significantly related to the number of regenerated taste buds. Unilaterally transected rats tested shortly after surgery were nearly as competent as controls. These results indicate that rats can recover the ability to discriminate NaCl from KCl after regeneration of anterior tongue taste buds.

Possible Test of theΔS=ΔQRule inKμ30Decay in a Regeneration Experiment

1971 ◽  
Vol 3 (1) ◽  
pp. 109-113
Author(s):  
Abdul Ebrahim
Keyword(s):  
Regeneration Experiment

scholarly journals Calcineurin subunit B is involved in shell regeneration in Haliotis diversicolor

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10662
Author(s):  
Tiranan Buddawong ◽  
Somluk Asuvapongpatana ◽  
Chanyatip Suwannasing ◽  
Valainipha Habuddha ◽  
Chompoonut Sukonset ◽  
...  
Keyword(s):  
Treated Group ◽  
Control Group ◽  
Shell Formation ◽  
Haliotis Diversicolor ◽  
Inner Surface ◽  
Shell Regeneration ◽  
Regeneration Experiment ◽  
Subunit B

Abalone shells are mainly composed of two major polymorphs of CaCO3 that are distributed in different layers of the shell. The process of shell biomineralization is controlled by genes and proteins expressed within the mantle epithelium. In this present paper, we conducted a shell regeneration experiment to study the role of HcCNA and HcCNB (individual subunits of calcineurin) in shell biomineralization in H. diversicolor. The results of qPCR showed that HcCNB is upregulated to a greater extent than HcCNA in the mantle after shell notching. In vivo study of the effects of rHcCNB injection showed a significantly higher percentage of regenerated shell length, but not area, in the injected group compared to the control group. In addition, SEM observation of the inner surface of the regenerated shells revealed three different zones including prismatic, nacreous, and a distinct transition zone. Changes in the crystal organization and ultrastructure are clearly evident in these three zones, particularly after 3 weeks of rHcCNB administration. We hypothesize that this is due to faster biomineralization rates in the rHcCNB treated group. Taken together, our results demonstrate that HcCNB participates in shell regeneration in H. diversicolor. As calcineurin subunits have also been implicated in shell formation in bivalves, these findings suggest that calcineurin subunits may play important roles in biomineralization in all conchiferans.

scholarly journals Ponies, Joints, Complexity and the Method of Indifference

10.36850/r3 ◽  
2021 ◽  
Author(s):  
Hubertus Hubertus Nederbragt
Keyword(s):  
Stem Cells ◽  
Biomedical Science ◽  
Artificial Damage ◽  
Regeneration Experiment ◽  
Possible Cause ◽  
Joint Experiment

An important discipline in biomedical science is the repair of damaged organs by in vitro cultured differentaited stem cells. This article evaluates an article in this field, entitled "The complexity of joint regeneration", by Diloloksumpan et al. (2021), who described a regeneration experiment of artificial damage of the joint of ponies. The experiment failed an I describe the possible cause of this failure by discussing the design of the experiment in the light of J.S.Mill's Method of Difference, published in 1848. I continue with a discussion of the concept of complexity that was introduced by the authors of the paper, by pointing out that three types of complexity may be distinguished; one of these is complicatedness which characterizes the assumed complexity of the joint experiment. I propose that this complicatedness can be solved by the use of the method of difference.

Study on coordinated control of the energy regeneration and the vibration isolation in a hybrid electromagnetic suspension

2016 ◽  
Vol 231 (11) ◽  
pp. 1530-1539 ◽  
Author(s):  
Renkai Ding ◽  
Ruochen Wang ◽  
Xiangpeng Meng ◽  
Long Chen
Keyword(s):  
Control System ◽  
Control Strategy ◽  
Vibration Isolation ◽  
Coordinated Control ◽  
Vibration Energy ◽  
Comparative Experiment ◽  
Passive Suspension ◽  
Energy Regeneration ◽  
Electromagnetic Suspension ◽  
Regeneration Experiment

A type of hybrid electromagnetic suspension is proposed in this study to improve the reliability of a conventional active electromagnetic suspension. A motor with the proposed hybrid electromagnetic suspension linear can regenerate the vibration energy; the coordination relationship between the energy regeneration and the vibration isolation of the hybrid electromagnetic suspension is studied. A dynamic model is established, and a modified skyhook control strategy is designed. A passive energy regeneration control system and an active control system are developed. The effect of the damping on the energy regeneration and the vibration isolation is discussed. The best damping, which can consider the energy regeneration and the vibration isolation simultaneously, is determined. Comparative simulations of a passive suspension, a hybrid electromagnetic suspension and an active electromagnetic suspension are carried out, and the results verify the effectiveness of the control strategy. Finally, an energy regeneration experiment and an isolation comparative experiment of a quarter-suspension are conducted. The findings show that the hybrid electromagnetic suspension with a modified skyhook control strategy can efficiently facilitate coordination between the energy regeneration and the vibration isolation.

scholarly journals Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica Roots

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Yie Chen Lu ◽  
Muhammad Raziq Rahimi Kooh ◽  
Linda Biaw Leng Lim ◽  
Namal Priyantha
Keyword(s):  
Adsorption Process ◽  
Solution Treatment ◽  
Methyl Violet ◽  
Coefficient Of Determination ◽  
Isotherm Models ◽  
Batch Adsorption ◽  
Maximum Adsorption Capacity ◽  
Methyl Violet 2B ◽  
Naoh Solution ◽  
Regeneration Experiment

In this study, a simple chemical modification was applied to a sustainable and abundantly available resource, kangkong root (KR), to remove methyl violet 2B (MV) dye. The chemically modified adsorbent (NaOH-KR) was obtained using NaOH solution treatment. Batch adsorption experiments were carried out to investigate the effects of pH, ionic strength, contact time, adsorbent dosage, and initial dye concentration. A regeneration experiment was also carried out to assess the potential of reusability. The adsorption process was modelled using various kinetics and isotherm models, whereby the best-fitting models were evaluated by using the coefficient of determination ( R 2 ) and error functions. The Sips ( R 2 = 0.9714 , χ2 =0.16) and pseudo-second-order ( R 2 = 0.9996 , χ 2 = 0.007 ) models were identified to best represent the adsorption process. The Sips model predicted a maximum adsorption capacity at 551.5 mg g-1 for NaOH-KR, which is 55% improvement in performance when compared to nonmodified KR. Lastly, the regeneration experiment showed that NaOH-KR was able to maintain reasonable dye removal even after five consecutive cycles of regenerating and reusing.

scholarly journals Detailed design of a resonantly enhanced axion-photon regeneration experiment

2009 ◽  
Vol 80 (7) ◽  
Author(s):  
Guido Mueller ◽  
Pierre Sikivie ◽  
D. B. Tanner ◽  
Karl van Bibber
Keyword(s):  
Detailed Design ◽  
Regeneration Experiment

All-optical regeneration experiment based on data-pump four-wave mixing in silicon waveguide

2015 ◽  
Author(s):  
Yong Geng ◽  
Bao-Jian Wu ◽  
Xiang-Jian Kong ◽  
Feng Wen ◽  
Heng Zhou ◽  
...  
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Silicon Waveguide ◽  
All Optical ◽  
Optical Regeneration ◽  
Regeneration Experiment

scholarly journals Photon Regeneration Experiment for Axion Search Using X-Rays

2010 ◽  
Vol 105 (25) ◽  
Author(s):  
R. Battesti ◽  
M. Fouché ◽  
C. Detlefs ◽  
T. Roth ◽  
P. Berceau ◽  
...  
Keyword(s):  
X Rays ◽  
Regeneration Experiment

Dynamic Regeneration of D301f Anion Exchange Resin to Remove Nitrate Nitrogen in Wastewater

2011 ◽  
Vol 374-377 ◽  
pp. 1005-1008
Author(s):  
Hong Yan Li ◽  
Shang Ming Li
Keyword(s):  
Anion Exchange ◽  
Exchange Resin ◽  
Nitrate Nitrogen ◽  
Anion Exchange Resin ◽  
Solution Concentration ◽  
Exchange Capacity ◽  
Resin Column ◽  
Regeneration Efficiency ◽  
Regeneration Experiment ◽  
Theoretical Amount

Nitrate nitrogen in wastewater poses serious threat. D301f anion exchange resin can remove nitrate nitrogen in wastewater, its regeneration is one of the most important procedures, because regeneration efficiency has a direct impact on exchange capacity, water quality and regeneration agent consumption. D301f exchange resin column simulated nitrogen fertilizer plant wastewater (nitrate nitrogen300mg/L) for dynamic regeneration experiment. The results showed that, NH4OH regeneration agent dosage selected 3 to 4 times of theoretical amount more reasonable; regeneration solution concentration and temperature separately used 20% and 30°C better.

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