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Characterization of Formacell Lignin Derived from Black Liquor as a Potential Green Additive for Advanced Biocomposites

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Journal of Renewable Materials 2023年第6期11卷 2865-2879页

作者： Sri Hidayati eugenia fonny budiyanto Hadi Saputra Sutopo Hadi Apri Heri Iswanto Nissa Nurfajrin Solihat Petar Antov Lee Seng Hua Widya Fatriasari MohdSapuan Salit Agricultural Product Technology Department Faculty of AgricultureThe University of LampungJl.Sumantri Brojonegoro No.1Bandar LampungIndonesia Department of Forest Product Faculty of ForestryUniversitas Sumatera UtaraKampus USU Padang BulanNorth SumatraIndonesia JATI-Sumatran Forestry Analysis Study Center Jl.Tridharma Ujung No.1Kampus USUMedanNorth SumatraIndonesia Research Center for Biomass and Bioproducts National Research and Innovation Agency(BRIN)Jl.Raya BogorCibinongIndonesia Faculty of Forest Industry University of ForestrySofiaBulgaria Department of Wood Industry Faculty of Applied SciencesUniversiti Teknologi MARA(UiTM)Cawangan Pahang Kampus JengkaLintasan SemarakBandar JengkaMalaysia Institute of Tropical Forestry and Forest Products Universiti Putra MalaysiaSelangorMalaysia Research Collaboration Center for Marine Biomaterials Jl.Ir.SukarnoJatinangorSumedangWest JavaIndonesia Advanced Engineering Materials and Composites Research Centre Department of Mechanical and Manufacturing EngineeringUniversiti Putra MalaysiaSelangorMalaysia

Black liquor is obtained as a by-product of the pulping process,which is used to convert biomass into pulp by removing lignin,hemicelluloses and other extractives from wood to free cellulose *** represents a major constituent in black liquor,with quantities varying from 20%to 30%,of which a very low share is used for manufacturing value-added products,while the rest is mainly burned for energy purposes,thus underestimating its great potential as a raw ***,it is essential to establish new isolation and extraction methods to increase lignin valorization in the development of bio-based *** aim of this research work was to determine the effect of KOH or ethanol concentration as an isolation agent on lignin yields and the chemical characteristics of lignin isolated from formacell black liquor of oil palm empty fruit bunch(OPEFB).Isolation of lignin was carried out using KOH with various concentrations ranging from 5%to 15%(w/v).Ethanol was also used to precipitate lignin from black liquor at concentrations varying from 5%to 30%(v/v).The results obtained showed that the addition of KOH solution at 12.5%and 15%concentrations resulted in better lignin yield and chemical properties of lignin,i.e.,pH values of 3.86 and 4.27,lignin yield of 12.78%and 14.95%,methoxyl content of 11.33%and 10.13%,and lignin equivalent weights of 476.25 and 427.03,*** to its phenolic structure and rich functional groups that are favorable for modifications,lignin has the potential to be used as a green additive in the development of advanced biocomposite products in various applications to replace current fossil fuel-based material,ranging from fillers,fire retardants,formaldehyde scavengers,carbon fibers,aerogels,and wood adhesives.

关键词： Formacell black liquor lignin properties KOH ethanol oil palm empty fruit bunch advanced biocomposite

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Contemporary climate infuence on variability patterns of Anadenanthera colubrina ***,a key species in seasonally dry tropical forests

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Journal of Forestry Research 2022年第1期33卷 89-101页

作者： María Victoria García María eugenia Barrandeguy Kathleen Prinz Genética de Poblaciones y Cuantitativa-Departamento de Genética-Facultad de Ciencias Exactas Químicas y Naturales-Universidad Nacional deMisionesInstituto de Biología Subtropical(UNaM-CONICET)Nodo PosadasFélix de Azara 15523300 PosadasArgentina Consejo Nacional de Investigaciones Científicas Y Técnicas(CONICET) PosadasMisionesArgentina Institute of Systematic Botany With Herbarium Haussknecht and Botanical Gardens Friedrich-Schiller-University Jena07743 JenaGermany

The distribution of many plant species has been shaped by climate changes,and their current phenotypic and genetic variability refect microclimatically suitable *** study relates contemporary climate to variability patterns of phenotypic traits and molecular markers in the Argentinean distribution of Anadenanthera colubrina ***,as well as to identify the most relevant phenotypic trait or molecular marker associated with those *** from four populations in both biogeographic provinces,Paranaense and Yungas,were *** analyses and multiple linear regressions were carried out to determine relationships among phenotypic traits and nuclear microsatellites,respectively,to climatic variables,and to identify the phenotypic traits as well as nuclear microsatellite loci most sensitive to *** and three clusters of individuals were detected based on genetic and phenotypic data,*** clusters based on genetic data refected the biogeographic origin of *** traits were the most relevant indicators of climatic *** microsatellite locus Ac41.1 appeared to be non-neutral presenting a strong correlation with climate variable temperature *** findings show complex patterns of genetic and phenotypic variability in the Argentinean distribution of *** *** related to the present or contemporary climate,and provides an example for an integrative approach to better understand climate impact on contemporary genetic and phenotypic variability in light of global climate change.

关键词： Contemporary climate Curupay Genetic variability Phenotypic variability Seasonally dry tropical forests

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Bred Vectors of the Lorenz63 System

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Advances in Atmospheric Sciences 2015年第11期32卷 1533-1538页

作者： Ying ZHANG Kayo IDE eugenia KALNAY Department of Atmospheric and Oceanic Science University of MarylandCollege Park

The breeding method has been widely used in studies of data assimilation, predictability and instabilities. The bred vectors （BVs）, which are the nonlinear difference between the control and perturbed runs, represent the time-evolving rapidly growing errors in dynamic systems. The Lorenz （1963） model （hereafter Lorenz63 model） has chaotic dynamics similar to weather and climate. This study investigates the features of BVs of the Lorenz63 model and its impact on regime prediction of the Lorenz63 model. The results show that the Lorenz63 model has two different BVs for each breeding cycle, and the two BVs approach being identical when growth rate is high. The duration of the current and next regime is associated with the relative directions between the BV with high growth rate and the model trajectory.

关键词： bred vectors chaos Lorenz63 model regime prediction

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Mitochondrial complex Ⅰ as a therapeutic target for Alzheimer’s disease

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Acta Pharmaceutica Sinica B 2022年第2期12卷 483-495页

作者： eugenia Trushina Sergey Trushin Md Fayad Hasan Department of Neurology Mayo ClinicRochesterMN 55905USA Department of Molecular Pharmacology and Experimental Therapeutics Mayo ClinicRochesterMN 55905USA

Alzheimer’s disease(AD),the most prominent form of dementia in the elderly,has no *** focused on the reduction of amyloid beta or hyperphosphorylated Tau protein have largely failed in clinical *** therapeutic targets and strategies are urgently *** data suggest that in response to environmental stress,mitochondria initiate an integrated stress response(ISR)shown to be beneficial for healthy aging and ***,we review data that implicate mitochondrial electron transport complexes involved in oxidative phosphorylation as a hub for small molecule-targeted therapeutics that could induce beneficial mitochondrial ***,partial inhibition of mitochondrial complex I has been exploited as a novel strategy for multiple human conditions,including AD,with several small molecules being tested in clinical *** discuss current understanding of the molecular mechanisms involved in this counterintuitive *** this strategy has also been shown to enhance health and life span,the development of safe and efficacious complex Ⅰ inhibitors could promote healthy aging,delaying the onset of age-related neurodegenerative diseases.

关键词： Mitochondria Mitochondria signaling ComplexⅠinhibitors Alzheimer’s disease Integrated stress response Neuroprotection Mitochondria targeted therapeutics Healthy aging

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Transcriptional Analysis of Normal Human Fibroblast Responses to Microgravity Stress

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Genomics, Proteomics & Bioinformatics 2008年第1期6卷 29-41页

作者： Yongqing Liu eugenia Wang Department of Biochemistry and Molecular Biology University of Louisville School of Medicine Louisville KY 40202 USA. Current address. James Graham Brown Cancer Center Department of Ophthalmology and Visual SciencesUniversity of Louisville School of Medicine Louisville KY 40202 USA.

To understand the molecular mechanism（s） of how spaceflight affects cellular signaling pathways, quiescent normal human WI-38 fibroblasts were flown on the STS-93 space shuttle mission. Subsequently, RNA samples from the spaceflown and ground-control cells were used to construct two cDNA libraries, which were then processed for suppression subtractive hybridization （SSH） to identify spaceflight-specific gene expression. The SSH data show that key genes related to oxidative stress, DNA repair, and fatty acid oxidation are activated by spaceflight, suggesting the induction of cellular oxidative stress. This is further substantiated by the up-regulation of neuregulin 1 and the calcium-binding protein calmodulin 2. Another obvious stress sign is that spaceflight evokes the Ras/mitogen-activated protein kinase and phosphatidylinositol-3 kinase signaling pathways, along with up-regulating several Gl-phase cell cycle traverse genes. Other genes showing upregulation of expression are involved in protein synthesis and pro-apoptosis, as well as pro-survival. Interactome analysis of functionally related genes shows that c-Myc is the ＂hub＂ for those genes showing significant changes. Hence, our results suggest that microgravity travel may impact changes in gene expression mostly associated with cellular stress signaling, directing cells to either apoptotic death or premature senescence.

关键词： microgravity apoptosis premature senescence oxidative stress subtractive hybridization

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Production of electrical energy from living plants in microbial fuel cells

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Clean Energy 2023年第2期7卷 408-416页

作者： Raymond Daniel Rodriguez Martinez Maria eugenia Alvarez Bermudez Department of Industrial Production Faculty of EngineeringUniversidad Metropolitana1073 CaracasVenezuela Department of Energy and Automation Faculty of EngineeringUniversidad Metropolitana1073 CaracasVenezuela

Growing energy demand is a current problem with greater incidence in the *** research objective is to establish seed bases to give a leading role to plants used in anthropogenic production activities and consumption,and even plants belonging to wildlife in terms of energy *** use of living plants to obtain electrical energy through a microbial-vegetable fuel cell is proposed as a mech-anism to supply the energy demand with easy access worldwide,especially in areas far from urban *** this work,the voltage produced by microbial-vegetable fuel cells was measured using graphite electrodes and plants belonging to the species of aloe(Aloe vera),corn(Zea mays),black beans(Phaseolus vulgaris),tomato(Solanum lycopersicum)and moss(Dicranidae).They were selected for their presence in everyday life and their great commercial and agricultural value,reaching a maximum voltage of 884 mV from *** is evidence that all plants can be a source of energy to a greater or lesser extent and that their performance is given by the plant root interactions at the ***,an extensive root system can favour the accumulation of substrate after the hydrolysis of dead roots,provided that their presence does not interfere with microbial activity on the anodic *** this,using plants with low resistance to thermal stress can lead to a substrate richer in substances that can be ***,it is recommended to use plants according to their life cycle and the morphology of their roots,and plants that can grow in waterlogged conditions or without direct contact with the Sun.

关键词： ecosystems microorganisms renewable energy photosynthesis sustainability

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MULTIOBJECTIVE ROUTING IN MULTISERVICE MPLS NETWORKS WITH TRAFFIC SPLITTING-A NETWORK FLOW APPROACH

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Journal of Systems Science and Systems Engineering 2015年第4期24卷 389-432页

作者： Rita Girao-Silva Jose Craveirinha Joao Climaco M.eugenia Captivo Department of Electrical and Computer Engineering University of Coimbra Polo ⅡPinhal de Marrocos P-3030-290 Coimbra Portugal Institute of Computers and Systems Engineering of Coimbra(INESC-Coimbra)R.Antero de Quental 199 P-3000-033 Coimbra Portugal Centro de Investigacao Operacional Faculdade de CienciasUniversidade de Lisboa Campo GrandeBloco C6Piso 4 P-1749-016 Lisboa Portugal

A multiobjective routing model for Multiprotocol Label Switching networks with multiple service types and traffic splitting is presented in this paper. The routing problem is formulated as a multiobjective mixed-integer program, where the considered objectives are the minimization of the bandwidth routing cost and the minimization of the load cost in the network links with a constraint on the maximal splitting of traffic trunks. Two different exact methods are developed for solving the formulated problem, one based on the classical constraint method and another based on a modified constraint method. A very extensive experimental study, with results on network performance measures in various reference test networks and in randomly generated networks, is also presented and its results are discussed.

关键词： Routing models multiobjective optimization telecommunication networks network flowapproach traffic splitting

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The crossroads of receptor-mediated signaling and endocytosis in plants

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Journal of Integrative Plant Biology 2018年第9期60卷 827-840页

作者： Lucas Alves Neubus Claus Daniel V.Savatin eugenia Russinova Department of Plant Biotechnology and Bioinformatics Ghent University9052 GhentBelgium Center for Plant Systems Biology VIB9052 GhentBelgium

Plants deploy numerous plasma membrane receptors to sense and rapidly react to environmental changes. Correct localization and adequate protein levels of the cell-surface receptors are critical for signaling activation and modulation of plant development and defense against pathogens. After ligand binding, receptors are internalized for degradation and signaling attenuation. However, one emerging notion is that the Iigand-induced endocytosis of reCeptor complexes is important for the signal duration, amplitude, and specificity. Recently, mutants of maior endocytosis players, including clathrin and dynamin, have been shown to display defects in activation of a subset of signal transduction pathways, implying that signaling in plants might not be solely restricted to the plasma membrane. Here, we summarize the up-to-date knowledge of receptor complex endocytosis and its effect on the signaling outcome, in the context of plant development and immunity.

关键词： The crossroads of receptor-mediated signaling and endocytosis in plants BRI PM

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Basal metabolic rate in free-living tropical birds： the influence of phylogenetic, behavioral, and ecological factors

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Current Zoology 2018年第1期64卷 33-43页

作者： Andrey BUSHUEV Oleg TOLSTENKOV Ekaterina ZUBKOVA eugenia SOLOVYEVA Anvar KERIMOV Department of Vertebrate Zoology Faculty of Biology Lomonosov Moscow State University Leninskie Gory 1/12 Moscow 119234 Russia Joint Russian-Vietnamese Tropical Research and Technological Center South Branch Street 3/2 3 10 District Ho Chi Minh City Vietnam Laboratory of Experimental Parasitology Center of Parasitology A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Sciences Leninskij prospekt 33 Moscow 119071 Russia Zoological Museum of Lomonosov Moscow State University Bolshaya Nikitskaya B Moscow 125009 Russia

The majority of our knowledge of avian energetics is based on studies of birds from temperate and high latitudes. Using the largest existing sample of wild-caught Old World tropical species, we showed that birds from Southern Vietnam had lower basal metabolic rate （BMR） than temperate species. The strongest dissimilarity between tropical and temperate species was the low scaling exponent in the allometric relation between BMR and body mass in tropical birds （the regression slope was 0.573）. The passerine migrants to temperate and high latitudes had higher BMR than tropical sedentary passerines. Body mass alone accounted for 93% of the variation in BMR （body mass ranged from 5 to 252 g）. Contrary to some other studies, we did not find evidence besides the above mentioned that phylogeny, taxonomy, behavior, or ecology have a significant influence on BMR variation among tropical birds.

关键词： allometry BMR body mass energy metabolism tropical birds.

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Challenges and opportunities for modeling coupled human and natural systems

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National Science Review 2023年第7期10卷 10-13页

作者： Yan Li Shan Sang Safa Mote Jorge Rivas eugenia Kalnay State Key Laboratory of Earth Surface Processes and Resources Ecology Beijing Normal University Institute of Land Surface System and Sustainable Development Faculty of Geographical Science Beijing Normal University Department of Atmospheric and Oceanic Science University of Maryland Institute for Physical Science and Technology University of Maryland

The Earth is a very large and complex system that consists of human and natural components interacting bidirectionally with each other,thus forming coupled human and natural systems (CHANS)[1].The increasing dominance of human impacts,especially after the 1950s [2],marked a new era for the Earth,the Anthropocene,which means humans have become the main drivers of the evolution of changes in the Earth ***,modeling CHANS is essential for understanding the emergent system properties of CHANS,predicting dynamics and feedbacks (*** shift,tipping point,and resilience),and informing governance of environmental systems to ensure a path toward sustainability [2,3].

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