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The TELOMERE REPEAT BINdING proteins TRB4 and TRB5 function as transcriptional activators of PRC2-controlled genes to regulate plant development

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Plant Communications 2024年第7期5卷 178-199页

作者： Simon Amiard Léa Feit Emmanuel vanrobays Lauriane Simon Samuel Le Goff Loriane Loizeau Léa Wolff Falk Butter Clara Bourbousse Fredy Barneche Christophe Tatout Aline v.Probst iGRed CNRSInsermUniversite´Clermont Auvergne63000 Clermont-FerrandFrance Institut de biologie de I’Ecole normale supe´rieure(IBENS) Ecole normale supe´rieureCNRSINSERMUniversite´PSLParisFrance Institute of Molecular Biology 55128 MainzGermany

Plant-specific transcriptional regulators called TELOMERE REPEAT BINdING proteins(TRBs)combine two dNA-binding domains,the GH1 domain,which binds to linker dNA and is shared with H1 histones,and the Myb/SANT domain,which specifically recognizes the telobox dNA-binding site ***1,TRB2,and TRB3 proteins recruit Polycomb group complex 2(PRC2)to deposit H3K27me3 and JMJ14 to remove H3K4me3 at gene promoters containing telobox motifs to repress ***,we demonstrate that TRB4 and TRB5,two related paralogs belonging to a separate TRB clade conserved in spermatophytes,regulate the transcription of several hundred genes involved in developmental responses to environmental ***4 binds to several thousand sites in the genome,mainly at transcription start sites and promoter regions of transcriptionally active and H3K4me3-marked genes,but,unlike TRB1,it is not enriched at H3K27me3-marked gene ***,TRB4 can physically interact with the catalytic components of PRC2,SWINGER,and CURLY LEAF(CLF).Unexpectedly,we show that TRB4 and TRB5 are required for distinctive phenotypic traits observed in clf mutant plants and thus function as transcriptional activators of several hundred CLF-controlled genes,including key flowering *** further demonstrate that TRB4 shares multiple target genes with TRB1 and physically and genetically interacts with members of both TRB ***,these results reveal that TRB proteins engage in both positive and negative interactions with other members of the family to regulate plant development through both PRC2-dependent and-independent mechanisms.

关键词： chromatin TRB proteins transcriptional regulation PRC2 plant development

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Selective butyric acid production from CO_(2)and its upgrade to butanol in microbial electrosynthesis cells

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Environmental Science and Ecotechnology 2024年第1期17卷 119-127页

作者： Meritxell Romans-Casas Laura Feliu-Paradeda Michele Tedesco Hubertus v.M.Hamelers Lluis Bañeras M.dolors Balaguer SebastiàPuig Paolo dessì Institute of the Environment University of Girona.Campus MontiliviCarrer Maria Aurélia Capmany 69E-17003GironaSpain Molecular Microbial Ecology Group Institute of Aquatic EcologyUniversity of GironaMaria Aurelia Capmany 4017003GironaSpain Wetsus European Centre of Excellence for Sustainable Water TechnologyOostergoweg 98911MALeeuwardenthe Netherlands

Microbial electrosynthesis(MES)is a promising carbon utilization technology,but the low-value products(i.e.,acetate or methane)and the high electric power demand hinder its industrial *** this study,electrically efficient MES cells with a low ohmic resistance of 15.7 mU m^(2)were operated galvanostatically in fed-batch mode,alternating periods of high CO_(2)and H2 *** promoted acetic acid and ethanol production,ultimately triggering selective(78%on a carbon basis)butyric acid production via chain *** average production rate of 14.5 g m^(-2)d^(-1)was obtained at an applied current of 1.0 or 1.5 mA cm^(-2),being Megasphaera *** key chain elongating *** a second cell with the catholyte containing the enriched community resulted in butyric acid production at the same rate as the previous cell,but the lag phase was reduced by 82%.Furthermore,interrupting the CO_(2)feeding and setting a constant pH2 of 1.7e1.8 atm in the cathode compartment triggered solventogenic butanol production at a pH below *** efficient cell design resulted in average cell voltages of 2.6e2.8 v and a remarkably low electric energy requirement of 34.6 kWhel kg1 of butyric acid produced,despite coulombic efficiencies being restricted to 45%due to the cross-over of O_(2)and H2 through the *** conclusion,this study revealed the optimal operating conditions to achieve energy-efficient butyric acid production from CO_(2)and suggested a strategy to further upgrade it to valuable butanol.

关键词： Biocathode Bioelectrochemical system Chain elongation Hydrogen partial pressure Megasphaera

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Exercise training improves long-term memory in obese mice

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Life Metabolism 2024年第1期3卷 37-50页

作者： Oliver K.Fuller Casey L.Egan Tina L.Robinson Nimna Perera Heidy K.Latchman Lauren v.Terry Emma d.McLennan Carolina Chavez Emma L.Burrows John W.Scott Robyn M.Murphy Henriette van Praag Martin Whitham Mark A.Febbraio Monash Institute of Pharmaceutical Sciences Monash UniversityMelbourneVictoria3052Australia La Trobe Institute for Molecular Science La Trobe UniversityMelbourneVictoria3086Australia Florey Institute of Neuroscience and Mental Health University of MelbourneMelbourneVictoria3052Australia department of Biomedical Sciences Charles E.Schmidt College of Medicineand Stiles-Nicholson Brain InstituteFlorida Atlantic UniversityJupiterFL 33458United States College of Life and Environmental Sciences University of BirminghamEdgbastonBirmingham B152TTUnited Kingdom

Obesity has been linked to a range of pathologies,including *** contrast,regular physical activity is associated with the prevention or reduced progression of ***,physical activity can improve memory and spatial cognition,reduce age-related cognitive decline,and preserve brain volume,but the mechanisms are not fully ***,we investigated whether any detrimental effects of high-fat diet(HFd)-induced obesity on cognition,motor behavior,adult hippocampal neurogenesis,and brain-derived neurotrophic factor(BdNF)could be mitigated by voluntary exercise training in male C57Bl/6 ***-induced impairment of motor function was not reversed by ***,voluntary wheel running improved long-term memory and increased hippocampal neurogenesis,suggesting that regular physical activity may prevent cognitive decline in obesity.

关键词： obesity exercise cognition

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detailed characterization of kHz-rate laser-driven fusion at a thin liquid sheet with a neutron detection suite

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High Power Laser Science and Engineering 2024年第1期12卷 13-23页

作者： Benjamin M.Knight Connor M.Gautam Colton R.Stoner Bryan v.Egner Joseph R.Smith Chris M.Orban Juan J.Manfredi Kyle d.Frische Michael L.dexter Enam A.Chowdhury Anil K.Patnaik department of Engineering Physics Air Force Institute of TechnologyWPAFBOHUSA Physics department Marietta CollegeMariettaOHUSA department of Physics The Ohio State UniversityColumbusOHUSA department of Materials Science and Engineering and Department of Electrical and Computer ScienceThe Ohio State UniversityColumbusOHUSA Intense Energy Solutions LLCPlain CityOHUSA

We present detailed characterization of laser-driven fusion and neutron production(-10^(5)/second) using 8 mJ, 40 fs laser pulses on a thin(<1 μm) d_2O liquid sheet employing a measurement suite. At relativistic inte... 详细信息

We present detailed characterization of laser-driven fusion and neutron production(-10^(5)/second) using 8 mJ, 40 fs laser pulses on a thin(d_2O liquid sheet employing a measurement suite. At relativistic intensity(~ 5 × 10^(18)W/cm^(2))and high repetition rate(1 kHz), the system produces deuterium±deuterium(d-d) fusion, allowing for consistent neutron generation. Evidence of d-d fusion neutron production is verified by a measurement suite with three independent detection systems: an EJ-309 organic scintillator with pulse-shape discrimination, a ~3He proportional counter and a set of 36 bubble detectors. Time-of-flight analysis of the scintillator data shows the energy of the produced neutrons to be consistent with 2.45 Mev. Particle-in-cell simulations using the WarpX code support significant neutron production from d-d fusion events in the laser±target interaction region. This high-repetition-rate laser-driven neutron source could provide a low-cost, on-demand test bed for radiation hardening and imaging applications.

关键词： high-repetition-rate laser-driven fusion laser-plasma interaction liquid target neutron detectors

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Nonlinear thermo-mechanical stability of eccentrically stiffened functionally graded material sandwich doubly curved shallow shells with general sigmoid law and power law according to third-order shear deformation theory

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Applied Mathematics and Mechanics(English Edition) 2017年第2期38卷 191-216页

作者： d.v.dUNG d.T.dONG Faculty of Mathematics Mechanics and Informatics Vietnam National University Hanoi 100000 Vietnam Faculty of Civil Engineering University of Transport Technology Hanoi 100000 Vietnam

In this paper, the nonlinear analysis of stability of functionally graded ma- terial （FGM） sandwich doubly curved shallow shells is studied under thermo-mechanical loads with material properties obeying the general sigmoid law and power law of four ma- terial models. Shells are reinforced by the FGM stiffeners and rest on elastic foundations. Theoretical formulations are derived by the third-order shear deformation theory （TSdT） with the von Karman-type nonlinearity taking into account the initial geometrical im- perfection and smeared stiffener technique. The explicit expressions for determining the critical buckling load and the post-buckling mechanical and thermal load-deflection curves are obtained by the Galerkin method. Two iterative algorithms are presented. The effects of the stiffeners, the thermal element, the distribution law of material, the initial imper- fection, the foundation, and the geometrical parameters on buckling and post-buckling of shells are investigated.

关键词： functionally graded material (FGM) sandwich double curved shallow shell,thermo-mechanical stability FGM stiffener elastic foundation

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Highly Active Interfacial Sites in SFT-SnO_(2) Heterojunction Electrolyte for Enhanced Fuel Cell Performance via Engineered Energy Bands:Envisioned Theoretically and Experimentally

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Energy & Environmental Materials 2024年第3期7卷 384-397页

作者： Sajid Rauf Muhammad Bilal Hanif Faiz Wali Zuhra Tayyab Bin Zhu Naveed Mushtaq Yatao Yang Kashif Khan Peter d.Lund Martin Motola Wei Xu College of Electronic and Information Engineering and State Key Laboratory of Radio frequency Heterogeneous Integration Shenzhen UniversityShenzhen 518000China department of Inorganic Chemistry Faculty of Natural SciencesComenius University in BratislavaIlkovicova 684215BratislavaSlovakia College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China School of Energy and Environment Southeast UniversityNo.2 Si Pai LouNanjing 210096China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China New Energy Technologies Group Department of Applied PhysicsAalto University School of ScienceP.O.Box 15100Fl-00076AaltoEspoo Finland

Extending the ionic conductivity is the pre-requisite of electrolytes in fuel cell technology for high-electrochemical *** this regard,the introduction of semiconductor-oxide materials and the approach of heterostructure formation by modulating energy bands to enhance ionic conduction acting as an electrolyte in fuel ***(n-type;SnO_(2))plays a key role by introducing into p-type SrFe_(0.2)Ti_(0.8)O_(3-δ)(SFT)semiconductor perovskite materials to construct p-n heterojunction for high ionic ***,two different composites of SFT and SnO_(2)are constructed by gluing p-and n-type SFT-SnO_(2),where the optimal composition of SFT-SnO_(2)(6∶4)heterostructure electrolyte-based fuel cell achieved excellent ionic conductivity 0.24 S cm^(-1)with power-output of 1004 mW cm^(-2)and high OCv 1.12 v at a low operational temperature of 500℃.The high power-output and significant ionic conductivity with durable operation of 54 h are accredited to SFT-SnO_(2)heterojunction formation including interfacial conduction assisted by a built-in electric field in fuel cell ***,the fuel conversion efficiency and considerable Faradaic efficiency reveal the compatibility of SFT-SnO_(2)heterostructure electrolyte and ruled-out short-circuiting ***,the first principle calculation provides sufficient information on structure optimization and energy-band structure modulation of SFT-SnO_(2).This strategy will provide new insight into semiconductor-based fuel cell technology to design novel electrolytes.

关键词： high ionic conductivity interfacial conduction modulated energy band structure p-n heterojunction semiconductors

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Philippine retinoblastoma initiative multi-eye center study 2010-2020

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 144-156页

作者： Roland Joseph d.Tan Gary John v.Mercado Patricia E.Cabrera Paulita Pamela P.Astudillo Rolando Enrique d.domingo Josept Mari S.Poblete Charmaine Grace M.Cabebe Adriel vincent R.Te Melissa Anne S.Gonzales Jocelyn G.Sy Beltran Alexis A.Aclan Jayson T.So Fatima G.Regala Kimberley Amanda K.Comia Josemaria M.Castro Mara Augustine S.Galang Aldous dominic C.Cabanlas Benedicto Juan E.Aguilar Gabrielle S.Evangelista Jo Michael Maniwan Andrei P.Martin Calvin Y.Martinez John Alfred H.Lim Rena Ivy Bascuna Rachel M.Ng Kevin B.Agsaoay Kris Zanna A.Acluba-Arao Ellaine Rose v.Apostol Beatriz M.Prieto department of Ophthalmology and visual Sciences Philippine General HospitalManila 1000Philippines department of Ophthalmology Baguio General Hospital and Medical CenterBaguio City 2600Philippines department of Ophthalmology Manila Doctors HospitalManila 1000Philippines department of Ophthalmology Rizal Medical CenterPasig City 1600Philippines department of Ophthalmology Jose B.Lingad Memorial Regional HospitalPampanga 2000Philippines department of Ophthalmology Southern Philippines Medical CenterDavao City 8000Philippines department of Ophthalmology East Avenue Medical CenterQuezon City 1100Philippines department of Ophthalmology Northern Mindanao Medical CenterCagayan de Oro City 9000Philippines department of Ophthalmology Cebu Velez General HospitalCebu City 6000Philippines Legazpi Eye Center Legazpi City 4500Philippines department of Ophthalmology Cagayan Valley Medical CenterTuguegarao City 3500Philippines

AIM:To provide a comprehensive and more representative national data on the disease,especially on treatment options and outcomes,and to determine access of retinoblastoma patients from Luzon,visayas and Mindanao to eye care,and determine if access is associated with delay in consultation,staging and ***:Cohort study of retinoblastoma patients seen in eleven institutions located in the three major areas of the Philippines namely Luzon,vizayas and Mindanao from ***:Totally 636 patients,involving 821 eyes,were ***(57%)were from Luzon and were seen in institutions in Luzon(72%).Annually,58±10 new cases were seen with 71%having unilateral *** delay of consultation remained long at 9(3,17)mo,longest in patients with unilateral disease(Pd those from the visayas(Pd on the International Retinoblastoma Staging System,only 35%of patients had Stage 1 while 47%already had extraocular *** was the most common treatment received by 484 patients while intravenous chemotherapy was received by *** were 250(39%)patients alive,195(31%)dead,85(13%)abandoned,17(3%)refused and 89(14%)with no ***:This study presents the largest cohort of retinoblastoma patients in the Philippines in terms of patients’and participating institutions’number and geographical location and type of institution(private and public).It also presents more comprehensive data on the treatments used and outcomes(survival,globe salvage,and vision retention rates).delay in consultation was still long among patients leading to advanced disease stage and lower survival *** increasing capacity to diagnose and manage retinoblastoma in the country,the delay of consultation remains long primarily due to accessibility issues to eye care institutions especially in the visayas and financial *** delay was still significant that overall survival rate remain low.

关键词： retinoblastoma Philippines clinical profile

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Comparison of methods for deriving phenotypes from incomplete observation data with an application to age at puberty in dairy cattle

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Journal of Animal Science and Biotechnology 2024年第2期15卷 535-545页

作者： Melissa A.Stephen Chris R.Burke Jennie E.Pryce Nicole M.Steele Peter R.Amer Susanne Meier Claire v.C.Phyn dorian J.Garrick dairyNZ Ltd 605 Ruakura RoadHamilton 3240New Zealand AL Rae Centre for Genetics and Breeding-Massey University RuakuraHamilton 3214New Zealand Agriculture victoria Research AgriBioCentre for AgriBioscienceBundooraVictoria 3083Australia School of Applied Systems Biology La Trobe UniversityBundooraVictoria 3083Australia AbacusBio DunedinNew Zealand

Background Many phenotypes in animal breeding are derived from incomplete measures,especially if they are challenging or expensive to measure *** include time-dependent traits such as reproductive status,or *** measures for these traits result in phenotypes that are subject to left-,interval-and rightcensoring,where phenotypes are only known to fall below an upper bound,between a lower and upper bound,or above a lower bound *** we compare three methods for deriving phenotypes from incomplete data using age at first elevation(>1 ng/mL)in blood plasma progesterone(AGEP4),which generally coincides with onset of puberty,as an example *** We produced AGEP4 phenotypes from three blood samples collected at about 30-day intervals from approximately 5,000 Holstein–Friesian or Holstein–Friesian×Jersey cross-bred dairy heifers managed in 54 seasonal-calving,pasture-based herds in New *** used these actual data to simulate 7 different visit scenarios,increasing the extent of censoring by disregarding data from one or two of the three *** methods for deriving phenotypes from these data were explored:1)ordinal categorical variables which were analysed using categorical threshold analysis;2)continuous variables,with a penalty of 31 d assigned to right-censored phenotypes;and 3)continuous variables,sampled from within a lower and upper bound using a data augmentation *** Credibility intervals for heritability estimations overlapped across all methods and visit scenarios,but estimated heritabilities tended to be higher when left censoring was *** sires with at least 5 daughters,the correlations between estimated breeding values(EBvs)from our three-visit scenario and each reduced data scenario varied by method,ranging from 0.65 to *** estimated breed effects also varied by method,but breed differences were smaller as phenotype censoring *** Our results indicate that using

关键词： Cattle Gibbs sampler Markov-chain Monte Carlo(MCMC) Puberty

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Evidence-Based Complementary and Alternative Medicine Effects of Capybara Oil on Cardiac Remodeling of C57bl/6 Mice

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Journal of Biosciences and Medicines 2024年第5期12卷 213-232页

作者： Rafael M. Almeida Wagner d. Giannetti Guilherme R. Silveira Carolina R. Castilho Renata v. Lisboa Bianca T. Ciambarella Rodrigo N. Ferreira Jorge José de Carvalho Laboratory of Ultrastructure and Tissue Biology Institute of Biology State University of Rio de Janeiro Rio de Janeiro Brazil Higher Education Center of valenç a Dom Andr&#233 Arcoverde Educational Foundation Valen&#231a Brazil

Cardiovascular diseases are the main cause of morbidity and mortality in the world, and obesity and the metabolic syndrome are risk factors for its development. One of the therapies to reduce cardiovascular risk is the use of polyunsaturated fatty acids. In Brazil, a source of such acid is the oil extracted from the fat of the capybara. The objective of this work is to study the effects of the capybara oil on lipid and glucose metabolism, as well as its effects on the adipose tissue and cardiac remodeling. We assessed the effects of capybara oil treatment on body mass, lipid and carbohydrate metabolism, systolic blood pressure, adipose tissue and cardiac remodeling, and performed an ultrastructural evaluation of the myocardium in C57Bl/6 mice treated with high-fat diet. Treatment with capybara oil reduced total cholesterol and triglyceride levels, systolic blood pressure, visceral and subcutaneous adipose tissue, and adipocyte diameter. In addition, cardiac remodeling was attenuated, preserving cardiomyocytes, increasing vascularization, reducing cardiomyocyte hypertrophy and the extracellular matrix, and preserving the morphological integrity of mitochondria. Capybara oil has several beneficial effects on the cardiovascular and metabolic system, and further studies are needed to better understand its role in the prevention or treatment of cardiovascular diseases.

关键词： Capybara Oil Cardiac Remodeling Polyunsaturated Fatty Acids Obesity Metabolic Syndrome

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Higher Grain-Filling Rate in Inferior Spikelets of Tolerant Rice Genotype Offset Grain Yield Loss under Post-Anthesis High Night Temperatures

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Rice science 2024年第5期31卷 572-586,I0059-I0061页

作者： Nitin SHARMA Bhupinder SINGH Subbaiyan Gopala KRISHNAN Haritha BOLLINEdI Pranab Kumar MANdAL Milan Kumar LAL Prakash Kumar JHA P.v.vara PRASAd Anjali ANANd division of Plant Physiology Indian Council of Agricultural Research(ICAR)-Indian Agricultural Research Institute(IARI)New Delhi 110012India division of Environment Science ICAR-IARINew Delhi 110012India division of Genetics ICAR-IARINew Delhi 110012India ICAR-National Institute for Plant Biotechnology New Delhi 110012India division of Crop Physiology and Biochemistry ICAR-National Rice Research InstituteCuttack 753006India department of Plant and Soil Sciences Mississippi State UniversityStarkvilleMS 39762USA Feed the Future Innovation Lab for Collaborative Research on Sustainable Intensification Kansas State UniversityManhattanKS 66506USA department of Agronomy Kansas State UniversityManhattanKS 66506USA

Increased nighttime respiratory losses decrease the amount of photoassimilates available for plant growth and yield. We hypothesized that the increased respiratory carbon loss under high night temperatures(HNT) could be compensated for by increased photosynthesis during the day following HNT exposure. Two rice genotypes, vandana(HNT-sensitive) and Nagina 22(HNT-tolerant), were exposed to HNT(4 ℃ above the control) from flowering to physiological maturity. They were assessed for alterations in the carbon balance of the source(flag leaf) and its subsequent impact on grain filling dynamics and the quality of spatially differentiated sinks(superior and inferior spikelets). Both genotypes exhibited significantly higher night respiration rates. However, only Nagina 22 compensated for the high respiration rates with an increased photosynthetic rate, resulting in a steady production of total dry matter under HNT. Nagina 22 also recorded a higher grain-filling rate, particularly at 5 and 10 d after flowering, with 1.5- and 4.0-fold increases in the translocation of ^(14)C sugars to the superior and inferior spikelets, respectively. The ratio of photosynthetic rate to respiratory rate on a leaf area basis was negatively correlated with spikelet sterility, resulting in a higher filled spikelet number and grain weight per plant, particularly for inferior grains in Nagina 22. Grain quality parameters such as head rice recovery, high-density grains, and gelatinization temperature were maintained in Nagina 22. An increase in the rheological properties of rice flour starch in Nagina 22 under HNT indicated the stability of starch and its ability to reorganize during the cooling process of product formation. Thus, our study showed that sink adjustments between superior and inferior spikelets favored the growth of inferior spikelets, which helped to offset the reduction in grain weight under HNT in the tolerant genotype Nagina 22.

关键词： high night temperature inferior grain pasting property radiolabeled sugar superior grain

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