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Editorial for advanced energy storage and conversion materials and technologies

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Rare Metals 2020年第9期39卷 967-969页

作者： Jian-Min Ma Yu-Tao Li School of Physics and Electronics Hunan UniversityChangsha 410082China Materials Science and Engineering Program and texas Materials Institute The University of Texas at AustinAustinTX 78712USA

Energy storage and conversion technologies have attracted increasing attention from academic and industrial communities due to the large demands from wide-ranging *** and developing high-performance electrode materials are cruciual to improve the performance of energy storage and conversion *** present,various energy storage and conversion devices,i.e.,potassium-ion batteries(PIBs).

关键词： energy potassium electrode

Suicidal Co-Degradation Interacting Factor 3 and of the Phytochrome Phytochrome B in Response to Light

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Molecular Plant 2014年第12期7卷 1709-1711页

作者： Ling Zhu Enamul Huq Department of Molecular Biosciences and the Institute for Cellular and Molecular Biology University of Texas at Austin Austin TX 78712 USA

Since the discovery of the founding member of the Phytochrome Interacting Factors （PIF3）, PIFs have been shown to be ＇hubs＇ for multiple signaling pathways and have taken center stage in many conferences and publica- tions （Leivar and Monte, 2014）. PIF3 was originally discov- ered from a yeast two-hybrid screen using the C-terminal domain of a class of photoreceptor called phytochromes （phys） that specifically sense the red and far-red regions of ambient sunlight （Leivar and Quail, 2011）. The Arabiclopsis thaliana genome encodes five phytochromes （phyA-phyE） and seven PIFs （PIF1, PIF3-PIFS）（Leivar and Quail, 2011）.

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Molecular evolution of Na^(+) channels in teleost fishes

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Integrative Zoology 2009年第1期4卷 64-74页

作者： Harold H.ZAKON Manda C.JOST Derrick J.ZWICKL Ying LU David M.HILLIS Section of Neurobiology Section of Integrative Biology The University of TexasAustinTXUSA

Voltage-dependent sodium channels are critical for electrical *** possess a single sodium channel gene;two rounds of genome duplication early in vertebrates increased the number to *** the teleost-tetrapod split,independent gene duplications in each lineage have further increased the number of sodium channel genes to 10 in tetrapods and 8 in *** we review how the occurrence of multiple sodium channel paralogs has influenced the evolutionary history of three groups of fishes:pufferfish,gymnotiform and mor-myriform electric ***(tetraodontidae)produce a neurotoxin,tetrodotoxin,that binds to and blocks the pore of sodium *** evolved resistance to their own toxins by amino acid substitutions in the pore of their sodium *** substitutions had to occur in parallel across multiple paralogs for organismal re-sistance to *** and mormyriform fishes independently evolved electric organs to generate elec-tricity for communication and object *** sodium channel genes are expressed in muscle in most *** both groups of weakly electric fishes,one gene lost its expression in muscle and became compartmen-talized in the evolutionary novel electric organ,which is a muscle *** gene then evolved at elevated rates,whereas the gene that is still expressed in muscle does not show elevated rates of *** the electric organ-expressing gene,amino acid substitutions occur in parts of the channel involved in determining how long the channel will be open or *** enhanced rate of sequence evolution of this gene likely underlies the spe-cies-level variations in the electric signal.

关键词： electric fish molecular evolution pufferfish sodium channels tetrodotoxin.

Methylene blue enhances polyethylene glycol-fusion repair of completely severed rat sciatic nerves

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Neural Regeneration Research 2021年第10期16卷 2056-2063页

作者： Cameron L.Ghergherehchi Jaimie T.Shores Joseph Alderete Erik K.Weitzel George D.Bittner Institute for Cellular and Molecular Biology University of Texas at AustinAustinTXUSA Department of Plastic and Reconstructive Surgery Johns Hopkins University School of MedicineBaltimoreMDUSA Department of Surgery RESTOR LaboratorySan AntonioTXUSA Department of Neuroscience University of Texas at AustinAustinTXUSA

Complete transection of peripheral mixed nerves immediately produces loss of sensory perception,muscle contractions and voluntary behavior mediated by the severed distal *** contrast to natural regeneration(~1 mm/d)of proximal axons that may eventually reinnervate denervated targets,re-innervation is restored within minutes by PEG-fusion that consists of neurorrhaphy and a sequence of well specified hypo-and isotonic calcium-free or calcium-containing solutions,the anti-oxidant methylene blue(MB)and the membrane fusogen polyethylene glycol(PEG).In this study,we examined the relative efficacy of PEG-fusion with no MB(0%),0.5%MB,or 1%MB on the recovery of voluntary behaviors by female Sprague-Dawley rats with a complete mid-thigh severance of their sciatic nerve bathed in extracellular fluid or calcium-containing isotonic *** recovery of voluntary behaviors is the most relevant measure of success of any technique to repair peripheral nerve *** assessed recovery by the sciatic functional index,a commonly used measure of voluntary hindlimb behaviors following complete sciatic *** reported that both 1%MB and 0.5%MB in sterile distilled water in our PEG-fusion protocol with neurorrhaphy significantly increased the rate and extent of behavioral recovery compared to PEG plus neurorrhaphy ***,0.5%MB was as effective as 1%MB in voluntary behavioral recovery as assessed by the sciatic functional *** sterile 1%MB is no longer clinically available,we therefore recommend that 0.5%MB be included in upcoming human clinical trials to evaluate the safety and efficacy of *** animal procedures were approved by the university of texas Institutional Animal Care and Use Committee(AUP-2019-00225)on September 9,2020.

关键词： axotomy methylene blue nerve repair neurorrhaphy peripheral nerve injury polyethylene glycol fusion sciatic nerve

Traffic dynamics considering packet loss in finite buffer networks

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Chinese Physics B 2019年第4期28卷 433-438页

作者： Jie Chen Jin-Yong Chen Ming Li Mao-Bin Hu School of Engineering Science university of Science and Technology of China Civil Architectural and Environmental Engineering university of texas at austin

In real complex systems, the limited storage capacity of physical devices often results in the loss of data. We study the effect of buffer size on packet loss threshold in scale-free networks. A new order parameter is proposed to characterize the packet loss threshold. Our results show that the packet loss threshold can be optimized with a relative small buffer size. Meanwhile, a large buffer size will increase the travel time. Furthermore, we propose a Buffered-Shortest-Path-First(BSPF) queuing strategy. Compared to the traditional First-In-First-Out(FIFO) strategy, BSPF can not only increase the packet loss threshold but can also significantly decrease the travel length and travel time in both identical and heterogeneous node capacity cases. Our study will help to improve the traffic performance in finite buffer networks.

关键词： finite buffer networks loss threshold queuing strategy

Superplasticity-like creep behavior of coarse grained ternary Al alloys

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Transactions of Nonferrous Metals Society of China 2010年第4期20卷 564-571页

作者：乔军 E.M.TALEFF College of Materials Science and Engineering University of Science and Technology Liaoning Department of Mechanical Engineering University of Texas at Austin

Enhanced tensile ductilities in coarse grained Al-Mg-Zn and Al-Mg-Fe materials were *** materials were Al-2Mg-5Zn,Al-3Mg-5Zn,Al-4Mg-5Zn,Al-3Mg-0.11Fe,Al-3Mg-0.27Fe,and *** elongation-to-failure tests were conducted at constant cross-head speed and constant temperatures from 300 to 450℃.Strain rate change tests were conducted at a constant temperature from 300 to 450℃and in strain-rate range from 4.31×10-5to 1.97×*** results show that over 100%ductilities are consistently achieved in these *** superplasticity-like behavior is rate-controlled by solute-drag *** ternary Zn and Fe additions do not have an adverse effect on solute-drag creep and ductility,they increase stress exponent and its sensitivity to Mg content during solute-drag creep.

关键词： Al-Mg alloys superplasticity solute-drag creep tensile ductility strain-rate sensitivity

The effects of resistance training on muscular strength and hypertrophy in elderly cancer patients:A systematic review and meta-analysis

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Journal of Sport and Health Science 2022年第2期11卷 194-201页

作者： Junghoon Lee Department of Kinesiology and Health Education College of EducationUniversity of Texas at AustinAustinTX 78712USA

Background:One of the most life-threatening comorbidities in elderly cancer patients is cancer cachexia,which is characterized by the ongoing loss of skeletal muscular strength and mass and is also associated with *** is a lack of recommendations for optimal resistance training(RT) for those *** purpose of this study was to systematically review and quantify the effects of RT on muscular strength and hypertrophy in elderly cancer ***: Five electronic databases were searched(until January 2020) for studies that met the following criteria:(i) cancer patients aged>60 years;(ii) structured and supervised RT intervention for>6 weeks;and(iii) measured muscular strength and/or ***:Thirteen studies(717 participants,average age=66 years) met the inclusion *** significantly increased muscular strength(mean effect size=0.87,95% confidence interval(95%CI):0.43-1.32,p <0.001) and did not significantly induce muscle hypertrophy(mean effect size=0.09,95%CI:-0.14 to 0.31,p=0.45).In subgroup analyses for muscle strength,higher weekly frequency was significantly associated with larger effect ***’ s test showed no significant publication bias for the 2 ***:The results suggest that RT improves muscular strength but does not significantly induce muscle hypertrophy in elderly cancer patients.

关键词： Cancer cachexia Muscle synthesis Sarcopenia Skeletal muscle

Recent Developments in Numerical Techniques for Transport-Based Medical Imaging Methods

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Communications in Computational Physics 2010年第6期8卷 1-50页

作者： Kui Ren Department of Mathematics University of Texas at Austin1 University Station C1200AustinTX 78712USA

The objective of this paper is to review recent developments in numerical reconstruction methods for inverse transport problems in imaging applications,mainly optical tomography,fluorescence tomography and bioluminescence *** those inverse problems,one aims at reconstructing physical parameters,such as the absorption coefficient,the scattering coefficient and the fluorescence light source,inside heterogeneous media,from partial knowledge of transport solutions on the boundaries of the *** physical parameters recovered can be used for diagnostic *** reconstruction techniques for those inverse transport problems can be roughly classified into two categories:linear reconstruction methods and nonlinear reconstruction *** the first type of methods,the inverse problems are linearized around some known background to obtain linear inverse *** regularization techniques are then applied to solve those inverse *** second type of methods are either based on regularized nonlinear least-square techniques or based on gradient-driven iterative methods for nonlinear operator *** either case,the unknown parameters are iteratively updated until the solutions of the transport equations with the those parameters match the measurements to a certain *** review linear and nonlinear reconstruction methods for inverse transport problems in medical imaging with stationary,frequency-domain and time-dependent *** materials presented include both existing and new ***,we attempt to present similar algorithms for different problems in the same framework to make it more straightforward to generalize those algorithms to other inverse(transport)problems.

关键词： Inverse problem radiative transport equation optical tomography bioluminescence tomography fluorescence tomography iterative reconstruction

Design and synthesis of synthetic promoters for consistency of gene expression across growth phases and scale in ***

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Synthetic and Systems Biotechnology 2024年第2期9卷 330-339页

作者： Kristin V.Presnell Omar Melhem Sarah M.Coleman Nicholas J.Morse Hal S.Alper McKetta Department of Chemical Engineering The University of Texas at Austin200E Dean Keeton St.Stop C0400AustinTX78712USA Institute for Cellular and Molecular Biology The University of Texas at Austin2500 Speedway AvenueAustinTX78712USA

Metabolic engineering and synthetic biology endeavors benefit from promoters that perform consistently(or robustly)with respect to cellular growth phase(exponential and stationary)and fermentation scale(microtiter plates,tubes,flasks,and bioreactors).However,nearly all endogenous promoters(especially in Saccharomyces cerevisiae)do not perform in this *** this work,a hybrid promoter engineering strategy is leveraged to create novel synthetic promoters with robustness across these *** a multi-dimensional RNA-seq dataset,promoters with specific phase dependencies were *** enriched with functional transcription factors were identified using MEME *** motif-containing fragments could impart activity dependence in the opposing ***,we obtain two new promoters with high and consistent expression across both phases by increasing the exponential phase activity of the starting stationary-phase scaffold by 38 and 23-fold ***,we show that these promoters function consistently across various laboratory growth scales over time in a microtiter plate and in ***,this work presents and validates a new strategy for engineering promoters in *** with high levels of expression that are robust to cellular growth phase and the scale of the culture.

关键词： endogenous synthetic stationary