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Towards frequency adaptation for delayed feedback deep brain stimulations

Neural Regeneration Research 2018年第3期13卷 408-409页

作者： Mohammad Daneshzand Miad Faezipour Buket D.Barkana D-BEST Lab Departments of Computer Science and Engineering and Biomedical Engineering University of Bridgeport Department of Electrical Engineering University of Bridgeport

In neurodegenerative disorders such as Parkinson＇s disease （PD）, deep brain stimulation （DBS） is a desirable approach when the medication is less effective for treating the symptoms. DBS incorporates transferring electrical pulses to a specific tissue of the central nervous system, obtaining therapeutic results by modulating the neuronal activity of that region. DBS has certain advantages such as reversibility and adjustability features over medication, since the neuronal firing patterns can be recorded and used to alter the parameters of the DBS signal （Benabid et al., 2009）. One of the DBS indications is its ability to suppress the abnormal neuronal activity to treat symptoms like tremor, akinesia and dystonia.

关键词： Figure DBS Towards frequency adaptation for delayed feedback deep brain stimulations STN HFS

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Plant growth-promoting rhizobacteria(PGPR)and its mechanisms against plant diseases for sustainable agriculture and better productivity

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BIOCELL 2022年第8期46卷 1843-1859页

作者： PRANAB DUTTA GOMATHY MUTHUKRISHNAN SABARINATHAN KUTALINGAM GOPALASUBRAMAIAM RAJAKUMAR DHARMARAJ ANANTHI KARUPPAIAH KARTHIBA LOGANATHAN KALAISELVI PERIYASAMY MARUMUGAM PILLAI GK UPAMANYA SARODEE BORUAH LIPA DEB ARTI KUMARI MADHUSMITA MAHANTA PUNABATI HEISNAM AK MISHRA School of Crop Protection Central Agricultural University(Imphal)UmiamIndia Department of Soil Science and Agricultural Chemistry Agricultural College and Research InstituteTamil Nadu Agricultural UniversityKoyingbatoreIndia Department of Crop physiology Agricultural College and Research InstituteTamil Nadu Agricultural UniversityKoyingbatoreIndia departments of pulses Tamil Nadu Agricultural UniversityCoimbatoreKoyingbatoreIndia Department of Environmental Sciences Horticultural College and Research InstituteTamil Nadu Agricultural UniversityKoyingbatoreIndia Department of Plant pathology Assam Agricultural UniversityDhubriIndia KVK-Tinsukia Assam Agricultural UniversityTinsukiaIndia Department of Plant Pathology Central Agricultural University(Imphal)PasighatIndia Department of Plant Pathology Dr Rajendra Prasad Central Agricultural UniversityBiharIndia

Plant growth-promoting rhizobacteria(PGPR)are specialized bacterial communities inhabiting the root rhizosphere and the secretion of root exudates helps to,regulate the microbial dynamics and their interactions with the *** bacteria viz.,Agrobacterium,Arthobacter,Azospirillum,Bacillus,Burkholderia,Flavobacterium,Pseudomonas,Rhizobium,etc.,play important role in plant growth *** addition,such symbiotic associations of PGPRs in the rhizospheric region also confer protection against several diseases caused by bacterial,fungal and viral *** biocontrol mechanism utilized by PGPR includes direct and indirect mechanisms direct PGPR mechanisms include the production of antibiotic,siderophore,and hydrolytic enzymes,competition for space and nutrients,and quorum sensing whereas,indirect mechanisms include rhizomicrobiome regulation *** of root exudates,phytostimulation through the release of phytohormones viz.,auxin,cytokinin,gibberellic acid,1-aminocyclopropane-1-carboxylate and induction of systemic resistance through expression of antioxidant defense enzymes viz.,phenylalanine ammonia lyase(PAL),peroxidase(PO),polyphenyloxidases(PPO),superoxide dismutase(SOD),chitinase andβ-*** the suppression of plant diseases potent bio inoculants can be developed by modulating the rhizomicrobiome through rhizospheric *** addition,understandings of different strategies to improve PGPR strains,their competence,colonization efficiency,persistence and its future implications should also be taken into consideration.

关键词： Plant growth-promoting rhizobacteria Biocontrol Plant diseases PGPR mechanisms Sustainable agriculture

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Spectrum of imaging and characteristics for liver tumors treated with irreversible electroporation

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Journal of Biomedical Science and Engineering 2012年第12期5卷 813-818页

作者： Robert E. Neal II Wa Cheung Helen Kavnoudias Kenneth R. Thomson Department of Radiology The Alfred Hospital Melbourne Australia departments of Radiology and Surgery The Alfred Hospital Melbourne Australia

Therapeutic irreversible electroporation (IRE) is a relatively new technique for targeted tumor ablation. Needle electrodes are placed into or around the targeted region to deliver a series of brief electric pulses that disrupt cell membrane integrity, killing cells in a non-thermal manner that does not affect the extracellular matrix or sensitive structures such as major vasculature and bile ducts;making IRE an advantageous technique, especially for tumors that are unresectable or ineligible for thermal ablation. Here, we present on the imaging findings from IRE liver tumor treatments from ultrasound, computed tomography, magnetic resonance, and positron emission tomography. Imaging aids planning and implementing treatments by visualizing the targeted volume and guiding electrode placement. Immediate changes to the affected IRE region may be observed to verify complete ablation of the tumor with margin during the procedure, and permits follow-up evaluation of clinical outcome. In particular, we present tumor treatments in regions adjacent to sensitive structures that contraindicate thermal therapies.

关键词： IRE Pictorial Review Non-Thermal Focal Ablation Minimally Invasive Surgery Medical Imaging

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A pulse of the Earth: A 27.5-Myr underlying cycle in coordinated geological events over the last 260 Myr

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Geoscience Frontiers 2021年第6期12卷 236-242页

作者： Michael R.Rampino Ken Caldeira Yuhong Zhu departments of Biology and Environmental Studies New York University100 Washington Square EastNew YorkNY 10003USA Department of Global Ecology Carnegie Institution for Science290 Panama StreetStanfordCA 94305USA Center for Data Science New York University60 Fifth AvenueNew YorkNY 10011USA

We performed spectral analyses on the ages of 89 well-dated major geological events of the last 260 Myr from the recent geologic literature. These events include times of marine and non-marine extinctions,major ocean-anoxic events, continental flood-basalt eruptions, sea-level fluctuations, global pulses of intraplate magmatism, and times of changes in seafloor-spreading rates and plate reorganizations. The aggregate of all 89 events shows ten clusters in the last 260 Myr, spaced at an average interval of ~ 26.9 Myr, and Fourier analysis of the data yields a spectral peak at 27.5 Myr at the ≥96% confidence level. A shorter period of ~ 8.9 Myr may also be significant in modulating the timing of geologic *** results suggest that global geologic events are generally correlated, and seem to come in pulses with an underlying ~ 27.5-Myr cycle. These cyclic pulses of tectonics and climate change may be the result of geophysical processes related to the dynamics of plate tectonics and mantle plumes, or might alternatively be paced by astronomical cycles associated with the Earth’s motions in the Solar System and the Galaxy.

关键词： Global geological events Fourier analysis Cyclic pulses Tectonics Correlations

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On High Brightness Temperature of Pulsar Giant pulses

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Journal of Physical Science and Application 2015年第1期5卷 48-60页

作者： Victor M. Kontorovich Deeametric Wave Department Institute of Radio Astronomy NAS of Ukraine Kharkov 61002 Ukraine Radio Physics Mechanics and Mathematics Departments V. N. Karazin National University Kharkov 61022 Ukraine

A wide range of events observed at the giant pulses （high energy density, observed localization of giant pulses GPs relative to the average pulse, fine structure of GPs with duration up to some nanoseconds, observed circular polarization of GPs, correlation between the GP phase and the phase of the hard pulsar emission X-ray and gamma） can be explained from the viewpoint that the internal polar gap is a cavity-resonator stimulated by discharges and radiating through the breaks in the magnetosphere. The new results in this field [the electromagnetic （era） waves generation in the gap in the process of longitudinal acceleration in the electric field vanishing on the star surface, high frequency break in the spectrum as a result of switching off this generation, formation in this process a power-low spectrum with a high frequency （hf） break, the possibility determination of pulsar magnetic field by the hf break position, the difference between main pulse and inter pulse mechanism generation, quantization of em tornado rotation in the gap and appearance of the bands in the inter pulse spectrum, influence the high energy density in the gap on pair generation and position of the dead line in pulsars] are added in the intermediate epilogue.

关键词： Pulsars giant pulses inner gap cavity-resonator spark rotation electromagnetic tornado.

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Measurement of the Coherence of a Bose-Einstein Condensate

Measurement of the Coherence of a Bose-Einstein Condensate

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CCAST“激光冷却：玻色—爱因斯坦凝聚和原子激射器”研讨会

作者： E.W.Hagley L.Deng M.Kozuma M.Trippenbach Y.B.Band P.S.Julienne K.Helmerson S.L.Rolston W.D.Phillips M.Edwards M.Doery National Institure of Standards and Technology 100 Bureau Drive Stop 8424 GaithersburgMaryland 20899-8424 National Institure of Standards and Technology 100 Bureau Drive Stop 8424GaithersburgMaryland 20899-8424 departments of Chemistry and Physics.Ben-Gurion University of the Negev Beer-Sheva.Israel 84105 Department of Physics.Ceorgia Southern Universirv Statesboro.Georgia 30460-8031

We present experimental and theorerical studies of the coherence properties of a Bode-Einsteincondensate(BEC)using an interference *** optical standing wave pulses of duration100 ns and separation Δt are applied to a *** standing wave phase grating makes smallcopies of the condensate displaced in momentum *** quantum mechanical amplitudes of eachcopy *** on Δt and on spatial phase variations across the *** find thatthe behavior of a trapped BEC is consistent with a uniform spatial phase.A releared *** large phase variation across the condensate.

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