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31.
Tingting Gu Jesper Just Katrine Tang Stenz Yan Yan Peter Sieljacks Jakob Wang Thomas Skjaerlund Groennebaek Jesper Emil Jakobsgaard Emil Rindom Jon Herskind Anders Gravholt Thomas Ravn Lassen Mathias Jrgensen Rikke Bk Eugenio Gutirrez-Jimnez Nina Kerting Iversen Peter Mondrup Rasmussen Jens Randel Nyengaard Malene Mller Jrgensen Frank de Paoli Hans Erik Btker Jrgen Kjems Kristian Vissing Kim Ryun Drasbek 《International journal of molecular sciences》2022,23(6)
Ischemic conditioning and exercise have been suggested for protecting against brain ischemia-reperfusion injury. However, the endogenous protective mechanisms stimulated by these interventions remain unclear. Here, in a comprehensive translational study, we investigated the protective role of extracellular vesicles (EVs) released after remote ischemic conditioning (RIC), blood flow restricted resistance exercise (BFRRE), or high-load resistance exercise (HLRE). Blood samples were collected from human participants before and at serial time points after intervention. RIC and BFRRE plasma EVs released early after stimulation improved viability of endothelial cells subjected to oxygen-glucose deprivation. Furthermore, post-RIC EVs accumulated in the ischemic area of a stroke mouse model, and a mean decrease in infarct volume was observed for post-RIC EVs, although not reaching statistical significance. Thus, circulating EVs induced by RIC and BFRRE can mediate protection, but the in vivo and translational effects of conditioned EVs require further experimental verification. 相似文献
32.
Ferran V. García-Ferrer Isabel Pérez-Arjona Germán J. de Valcárcel Eugenio Roldán 《Journal of Modern Optics》2013,60(5):763-773
It is well known that the squeezing spectrum of the field exiting a nonlinear cavity can be directly obtained from the fluctuation spectrum of normally ordered products of creation and annihilation operators of the cavity mode. In this article we show that the output field squeezing spectrum can be derived also by combining the fluctuation spectra of any pair of s -ordered products of creation and annihilation operators. The interesting result is that the spectrum obtained in this way from the linearized Langevin equations is exact, and this occurs in spite of the fact that no s -ordered quasiprobability distribution verifies a true Fokker–Planck equation; that is, the Langevin equations used for deriving the squeezing spectrum are not exact. The (linearized) intracavity squeezing obtained from any s -ordered distribution is also exact. These results are exemplified in the problem of dispersive optical bistability. 相似文献
33.
Eugenio Roanes-Lozano Luis M. Laita Eugenio Roanes-Macías Michael J. Wester José Luis Ruiz-Lozano Carlos Roncero 《Mathematics and computers in simulation》2009
The length of the Spanish broad gauge network has decreased in the 1956–2006 period. When looking at different railway maps through this period, it seems that the network is offering fewer and fewer alternatives when a line is cut, that is, the network is becoming less and less flexible. The goal of this article is to prove that the flexibility of the Spanish broad gauge network has decreased substantially in the 1956–2006 period. We have considered the network as a graph (ignoring traditional railway quality indicators such as commercial speed, number of tracks, electrifications, signaling, …) and we have chosen two simple indicators as accurate in this sense: the number of cycles (cycles provide an alternative to reach a station if there is a problem in one line) and the number of stations of intermediate degree. To achieve this, we have developed a piece of software that is an ad hoc extension of Maple’s networks package. 相似文献
34.
35.
Potential of the new endophytic fungus Hormonema sp. CECT‐13092 for improving processes in lignocellulosic biorefineries: biofuel production and cellulosic pulp manufacture 下载免费PDF全文
36.
37.
Marco Giorgetti Mario Berrettoni Maria Luisa Saladino Eugenio Caponetti 《Journal of Materials Science》2009,44(6):1572-1579
Nanopowders of Yttrium Aluminium Garnet doped with neodymium (Nd:YAG) were investigated by X-Ray Absorption Fine Structure
(XAFS) at the Nd LIII edge in the 1.3–20.8% doping range. XANES spectra appear similar in the full range of the Nd concentration. However, a significant
decrease in the white line intensity of XANES is revealed as the quantity of Nd doping ions increases. Plotting the white
line intensity as a function of Nd doping ions reveals two linear trends with two different slopes, identifying a threshold
value where the neodymium concentration reaches 5 at.% This experimental finding provides support for the existence of a double
doping regime in Nd:YAG nanopowders.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献
38.
A Fabry-Perot resonator filled with second-order nonlinear optical material is investigated. Attention is devoted to making the resonator act as a nonlinear mirror for ultralow-intensity light signals that can be switched by a control beam at the second-harmonic frequency. The interaction process is an input-phase-independent parametric downconversion. The theoretical problem is solved through implementation of a dummy variable method optimized for a parametric process. Efficient amplification and bistability of low-intensity signals have been found. 相似文献
39.
Eugenio Culurciello Andreas G. Andreou 《Analog Integrated Circuits and Signal Processing》2006,49(1):39-51
We report on two generations of CMOS image sensors with digital output fabricated in a 0.6 μm CMOS process. The imagers embed
an ALOHA MAC interface for unfettered self-timed pixel read-out targeted to energy-aware sensor network applications. Collision
on the output is monitored using contention detector circuits. The image sensors present very high dynamic range and ultra-low
power operation. This characteristics allow the sensor to operate in different lighting conditions and for years on the sensor
network node power budget.
Eugenio Culurciello (S’97–M’99) received the Ph.D. degree in Electrical and Computer Engineering in 2004 from Johns Hopkins University, Baltimore,
MD. In July 2004 he joined the department of Electrical Engineering at Yale University, where he is currently an assistant
professor. He founded and instrumented the E-Lab laboratory in 2004. His research interest is in analog and mixed-mode integrated
circuits for biomedical applications, sensors and networks, biological sensors, Silicon on Insulator design and bio-inspired
systems.
Andreas G. Andreou received his Ph.D. in electrical engineering and computer science in 1986 from Johns Hopkins University. Between 1986 and
1989 he held post-doctoral fellow and associate research scientist positions in the Electrical and Computer engineering department
while also a member of the professional staff at the Johns Hopkins Applied Physics Laboratory. Andreou became an assistant
professor of Electrical and Computer engineering in 1989, associate professor in 1993 and professor in 1996. He is also a
professor of Computer Science and of the Whitaker Biomedical Engineering Institute and director of the Institute’s Fabrication
and Lithography Facility in Clark Hall. He is the co-founder of the Johns Hopkins University Center for Language and Speech
Processing. Between 2001 and 2003 he was the founding director of the ABET accredited undergraduate Computer Engineering program.
In 1996 and 1997 he was a visiting professor of the computation and neural systems program at the California Institute of
Technology. In 1989 and 1991 he was awarded the R.W. Hart Prize for his work on mixed analog/digital integrated circuits for
space applications. He is the recipient of the 1995 and 1997 Myril B. Reed Best Paper Award and the 2000 IEEE Circuits and
Systems Society, Darlington Best Paper Award. During the summer of 2001 he was a visiting professor in the department of systems
engineering and machine intelligence at Tohoku University. In 2006, Prof. Andreou was elected as an IEEE Fellow and a distinguished
lecturer of the IEEE EDS society.
Andreou’s research interests include sensors, micropower electronics, heterogeneous microsystems, and information processing
in biological systems. He is a co-editor of the IEEE Press book: Low-Voltage/Low-Power Integrated Circuits and Systems, 1998
(translated in Japanese) and the Kluwer Academic Publishers book: Adaptive Resonance Theory Microchips, 1998. He is an associate
editor of IEEE Transactions on Circuits and Systems I. 相似文献
40.
Edzer Huitema Gerwin Gelinck Bas van der Putten Eugenio Cantatore Karel Kuijk Kees Hart Dago De Leeuw 《Journal of the Society for Information Display》2002,10(3):195-202
A 2‐in. active‐matrix display was demonstrated, containing 4096 solution‐processed polymer‐based transistors. By using the polymer‐dispersed liquid‐crystal display (LCD) effect, this results in a reflective, low‐power display with paper‐like contrast. The influence of the transistor parameters on the display performance is analyzed by use of a model for charging and discharging of the pixel capacitors. Good agreement was obtained between the model and the experimental data. Scaling behavior allows estimation of the performance required for transistors in a quarter‐VGA display. These requirements are met by solution‐processed pentacene transistors. 相似文献