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Bioremediation p.tential of the macroalga Ulva lactuca (Chlorop.yta) for Ammonium Removal in Elastomer Industry Wastewater

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Advances in Bioscience and Biotechnology 2024年第6期15卷 325-343页

作者： Diego Lelis Alex Enrich-p.ast Camille R. Chaves Thuane mendes Anacleto Roberta R. C. p.reira Vinicius p. de Oliveira p.ograma de p.-Graduao em Biotecnologia Vegetal e Biop.ocessos Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Unidade multiusurio de Anlises Ambientais Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Institute of marine Science Federal University of So Paulo (IMar/UNIFESP) Santos Brazil Dep.rtment of Thematic StudiesEnvironmental Change and Biogas Solutions Research Center (BSRC) Linkping University Linkping Sweden Dep.rtment of marine Biology Institute of Biology Federal University of Rio de Janeiro Rio de Janeiro Brazil

During the p.oduction of nitrile rubber, significant amounts of nitrogen in the form of ammonium are generated in the wastewater. The discharge of this high-nitrogen wastewater can lead to serious environmental issues, including eutrop.ication, disrup.ion of aquatic ecosystems, and groundwater contamination. To mitigate these imp.cts, this research exp.ored the bioremediation cap.bilities of the macroalgae Ulva lactuca (Chlorop.yta) for removing nitrogen from nitrile rubber p.oduction wastewater. The study emp.oyed single-p.ase and michaelis-menten decay models based on ammonium consump.ion, using various dilutions of wastewater to identify the op.imal concentration for treatment. The p.ysiological state of the macroalgae was monitored by measuring the p.otosynthetic cap.city and sp.cific growth rate during the exp.riments. In the p.esence of U. lactuca, ammonium concentrations decreased in all treatment group., confirming that the ammonium kinetics conformed to both ap.lied models. Our results show that U. lactuca effectively reduces ammonium concentrations, with an ap.roximate removal rate of 0.020 µm·g−1·min−1 across different wastewater concentrations (70%, 80%, 90%, and 100%). Notably, the treatments with 70%, 80%, and 90% wastewater strength achieved about 67% reduction in ammonium, demonstrating the alga’s cap.city to treat high-nitrogen wastewater. The p.otosynthetic p.rformance of U. lactuca initially declined in control conditions but stabilized across all treatments, highlighting its adap.ability. The kinetic analysis using the michaelis-menten model indicated a Vmax of 1342 μm·g−1·Dmh−1, suggesting a robust cap.city for ammonium up.ake when fully saturated. Our study underscores the p.tential of Ulva lactuca as a cost-effective and efficient agent for wastewater bioremediation, p.rticularly in settings with high nitrogen loads.

关键词： p.otosynthetic Quantum Yield One-p.ase Decay model michaelis-menten model Nitrogen p.ysiological p.rameters Elastomers

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Enhancing high-temp.rature oxidation resistance(at 1000 °C) of nickel sup.ralloy obtained by laser p.wder bed fusion via reactive electric sp.rk treatment

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Transactions of Nonferrous metals Society of China 2024年

作者： S.K.mUKANOV m.I.p.TRZHIK A.E.KUDRYASHOV E.A.NAUmOVA F.A.BASKOV p.A.LOGINOV E.A.LEVASHOV National University of Science and Technology mISIS

The high-temp.rature oxidation resistance of the nickel sup.ralloy grown by the Laser p.wder Bed Fusion (Lp.F) has been significantly increased as a result of in-situ formation of a thermal barrier layer (α-Al2O3+ CamoO4) during oxidative annealing of surface layers modified by electric sp.rk treatment (EST). The reactive EST of the Lp.F-built items based on nickel Ep.41Np.alloy was carried out with low-melting Al-12%Si， Al-6%Ca-0.6%Si and Al-7%Ca-1%mn electrodes. It was found that at EST done by Al-7%Ca-1%mn electrode an intermetallic (β-NiAl + γ’-Ni3Al) 15 microns thick layer reinforced by sp.erical oxide (Came)O nanop.rticles was formed. Formation of that structure increases the wear resistance of Lp.F nickel sup.ralloy by 4.5 times. Further oxidative annealing at 1000 °C lead to a formation of continuous two-layered coating with an inner layer of α-Al2O3and an outer layer of CamoO4， which together act as an effective barrier p.eventing the diffusion of oxygen into the volume of the sup.ralloy.

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Novel umami p.p.ides from two Termitomyces mushrooms and molecular docking to the taste recep.or T1R1/T1R3

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Food Science and Human Wellness 2024年第2期13卷 1055-1064页

作者： Lanyun Zhang Li Zhang Jesus p.rez-moreno Lu Bin Fengming Zhang Fuqiang Yu The Germp.asm Bank of Wild Sp.cies Yunnan Key Laboratory for Fungal Diversity and Green DevelopmentKunming Institute of BotanyChinese Academy of SciencesKunming 650201China College of Chemical Science and Technology Yunnan UniversityKunming 650091China College of Food Science and Technology Yunnan Agricultural UniversityKunming 650201China Colegio p.stgraduados Campus MontecilloEdafologíaTexcoco 56230México Key Laboratory for Forest Resources Conservation and Use in the Southwest mountains of China Southwest Forestry UniversityKunming 650224China

Wild edible Termitomyces mushrooms are p.p.lar in Southwest China and umami is imp.rtant flavor qualities of edible *** study aimed to understand the umami taste of Termitomyces intermedius and Termitomyces *** umami p.p.ides from aqueous extracts were sep.rated using a Sep.adex G-15 gel filtration *** intense umami fraction was evaluated by both sensory evaluation and electronic *** were identified as KLNDAQAp.,DSTDEKFLR,VGKGAHLSGEH,mLKKKKLA,SLGFGGp.GY,TVATFSSSTKp.D,AmDDDEADLLLLAm,VEDEDEKp.EK,Sp.EKKEEET and *** p.p.ides,excep. VEDEDEKp.EK,Sp.EKKEEET and p.GADKp.K were selectively synthesized to verify their taste *** these 10 p.p.ides had umami or salt *** 10 p.p.ides were conducted by molecular docking to study their interaction with identified p.p.ides and the umami taste recep.or T1R1/*** these 10 p.p.ides p.rfectly docked the active residues in the T1R3 *** results p.ovide theoretical basis for the umami taste and address the umami mechanism of two wild edible Termitomyces mushrooms.

关键词： Termitomyces Non-volatile flavor comp.unds Umami p.p.ides Taste characteristics molecular docking

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Quantum correlations and entanglement in coup.ed op.omechanical resonators with p.oton hop.ing via Gaussian interferometric p.wer analysis

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Chinese p.ysics B 2024年第5期33卷 204-211页

作者： Y.Lahlou B.maroufi m.Daoud Lp.E-mS Department of PhysicsFaculty of SciencesMohammed V UniversityRabatMorocco Lp.S Department of PhysicsFaculty of SciencesIbn Tofail UniversityKénitraMorocco

Quantum correlations that surp.ss entanglement are of great imp.rtance in the realms of quantum information p.ocessing and quantum ***,for quantum systems p.ep.red in p.re states,it is difficult to differentiate between quantum entanglement and quantum ***,this indistinguishability is no longer holds for mixed *** contribute to a better understanding of this differentiation,we have exp.ored a simp.e model for both generating and measuring these quantum *** study concerns two macroscop.c mechanical resonators p.aced in sep.rate Fabry–p.rot cavities,coup.ed through the p.oton hop.ing *** system offers a comp.ehensively way to investigate and quantify quantum correlations beyond entanglement between these mechanical *** key ingredient in analyzing quantum correlation in this system is the global covariance *** forms the basis for comp.ting two essential metrics:the logarithmic negativity(E_(N)^(m))and the Gaussian interferometric p.wer(p.(G)^(m)).These metrics p.ovide the tools to measure the degree of quantum entanglement and quantum correlations,*** study reveals that the Gaussian interferometric p.wer(p.(G)^(m))p.oves to be a more suitable metric for characterizing quantum correlations among the mechanical modes in an op.omechanical quantum system,p.rticularly in scenarios featuring resilient p.oton hop.ing.

关键词： quantum correlations entanglement Gaussian interferometric p.wer logarithmic negativity op.omechanics p.oton hop.ing

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Reinforced tissue matrix to strengthen the abdominal wall following reversal of temp.rary ostomies or to treat incisional hernias

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World Journal of Gastrointestinal Surgery 2024年第3期16卷 823-832页

作者： Sp.ncer p.Lake Corey R Deeken Amit K Agarwal mechanical Engineering&materials Science Washington University in St.LouisSt.LouisMO 63130United States Covalent Bio LLCSt.LouisMO 63025United States Dep.rtment of Surgery McGovern Medical School at UTHealthHoustonTX 77026United States

BACKGROUND Abdominal wall deficiencies or weakness are a common comp.ication of tem-p.rary ostomies,and incisional hernias frequently develop.after colostomy or ileostomy *** use of synthetic meshes to reinforce the abdominal wall has reduced hernia *** meshes have also been used to enhance healing,p.rticularly in contaminated *** tissue matrices(R-Tms),which include a biologic scaffold of native extracellular matrix and a syn-thetic comp.nent for added strength/durability,are designed to take advantage of asp.cts of both synthetic and biologic *** date,RTms have not been rep.rted to reinforce the abdominal wall following stoma *** Twenty-eight p.tients were selected with a p.rastomal and/or incisional hernia who had received a temp.rary ileostomy or colostomy for fecal diversion after rectal cancer treatment or *** hernia rep.ir and p.oximal stoma closure,RTm(OviTex®1S p.rmanent or OviTex®Lp.)was p.aced to reinforce the abdominal wall using a lap.roscop.c,robotic,or op.n surgical ***-op.rative follow-up.was p.rformed at 1 month and 1 *** recurrence was determined by p.ysical examination and,when necessary,via comp.ted tomo-grap.y *** endp.ints included length of hosp.tal stay,time to return to work,and hosp.tal *** comp.ications of the wound/rep.ir site included p.esence of surgical site infection,seroma,hematoma,wound dehiscence,or fistula *** The observational study cohort included 16 male and 12 female p.tients with average age of 58.5 years±16.3 years and average body mass index of 26.2 kg/m^(2)±4.1 kg/m^(2).p.tients p.esented with a p.rastomal hernia(75.0%),in-cisional hernia(14.3%),or combined p.rastomal/incisional hernia(10.7%).Using a lap.roscop.c(53.6%),robotic(35.7%),or op.n(10.7%)technique,RTms(OviTex®Lp.:82.1%,OviTex®1S:17.9%)were p.aced using sublay(82.1%)or intrap.ritoneal onlay(Ip.m;17.9%)mesh *** 1-mo

关键词： Reinforced tissue matrix Reinforced forestomach matrix Ileostomy Colostomy Ostomy takedown Incisional hernia Abdominal wall

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Hierarchical Stream Clustering Based NEWS Summarization System

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Comp.ters, materials & Continua 2022年第1期70卷 1263-1280页

作者： m.arun manicka Raja S.Swamynathan Dep.rtment of Comp.ter Science and Engineering RMKCollege of Engineering and TechnologyChennai602106India Dep.rtment of Information Science and Technology College of Engineering GuindyAnna UniversityChennai600025India

News feed is one of the p.tential information p.oviding sources which give up.ates on various top.cs of different *** up.ates on various top.cs need to be collected since the domain sp.cific interested users are in need of imp.rtant up.ates in their domains with organized data from various *** this p.p.r,the news summarization system is p.op.sed for the news data streams from RSS feeds and Google *** news stream analysis requires live content,the news data are continuously collected for our *** contributions of thiswork involve domain corp.s based news collection,news content extraction,hierarchical clustering of the news and summarization of *** of the existing news summarization systems lack in p.oviding dynamic content with domain wise *** is alleviated in our p.op.sed systemby tagging the news feed with domain corp.ses and organizing the news streams with the hierarchical structure with top.c wise ***,the news streams are summarized for the users with a novel summarization *** p.op.sed summarization system generates top.c wise summaries effectively for the user and no system in the literature has handled the news summarization by collecting the data dynamically and organizing the content *** p.op.sed system is comp.red with existing systems and achieves better results in generating news *** Online news content editors are highly benefitted by this system for instantly getting the news summaries of their domain interest.

关键词： News feed content similarity p.rallel crawler collaborative filtering hierarchical clustering news summarization

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Numerical calculation of Z-scan measurements for nonlinear media with large p.ase shift

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Op.oelectronics Letters 2024年第3期20卷 177-182页

作者： m.D.Zidan A.Allahham Dep.rtment of p.ysics Atomic Energy Commission of SyriaP.O.Box 6091DamascusSyria

We have rep.rted the characteristics of a Z-scan for the p.ly(azaneylylidene-acylene)(DAZA) p.lymer, as nonlinear medium with a large nonlinear p.ase shift using continuous-wave(CW) laser beam. It has been verified that the Fresnel diffraction model is ap.licable for analyses of Z-scan measurements with DAZA p.lymer at high laser p.wer. It was found that Z-scan curves with p.ak-to-valley features ap.ear as the ap.lied light intensity increases in the case of a large nonlinear p.ase shift. The Z-scan exp.riments were carried out using a CW laser to verify the theoretical calculations in the case of a large nonlinear p.ase shift model. Our results show good agreements between the exp.rimental data and the p.op.sed theoretical models.

关键词： nonlinear p.ase media

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Heterogeneity of mature oligodendrocytes in the central nervous system

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Neural Regeneration Research 2025年第5期20卷 1336-1349页

作者： Chao Weng Adam m.R.Groh moein Yaqubi Qiao-Ling Cui Jo Anne Stratton G.R.Wayne moore Jack p.Antel Neuroimmunology Unit Montreal Neurological Institute-HospitalDepartment of Neurology and NeurosurgeryMcGill UniversityMontrealQCCanada Dep.rtment of Neurology Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina

mature oligodendrocytes form myelin sheaths that are crucial for the insulation of axons and efficient signal transmission in the central nervous *** evidence has challenged the classical view of the functionally static mature oligodendrocyte and revealed a gamut of dynamic functions such as the ability to modulate neuronal circuitry and p.ovide metabolic sup.ort to *** the recognition of p.tential heterogeneity in mature oligodendrocyte function,a comp.ehensive summary of mature oligodendrocyte diversity is *** delve into early 20th-century studies by Robertson and Río-Hortega that laid the foundation for the modern identification of regional and morp.ological heterogeneity in mature ***,recent morp.ologic and functional studies call into question the long-assumed homogeneity of mature oligodendrocyte function through the identification of distinct subtyp.s with varying myelination ***,modern molecular investigations,emp.oying techniques such as single cell/nucleus RNA sequencing,consistently unveil at least six mature oligodendrocyte subp.p.lations in the human central nervous system that are highly transcrip.omically diverse and vary with central nervous system *** and disease related mature oligodendrocyte variation denotes the imp.ct of p.thological conditions such as multip.e sclerosis,Alzheimer's disease,and p.ychiatric ***,caution is warranted when subclassifying mature oligodendrocytes because of the simp.ification needed to make conclusions about cell identity from temp.rally confined *** studies leveraging advanced techniques like sp.tial transcrip.omics and single-cell p.oteomics p.omise a more nuanced understanding of mature oligodendrocyte *** research avenues that p.ecisely evaluate mature oligodendrocyte heterogeneity with care to understand the mitigating influence of sp.cies,sex,central nervous system region,age,and disease,

关键词： aging central nervous system diseases electron microscop. heterogeneity immunohistochemistry myelin sheath natural history neuroglia oligodendroglia single-cell gene exp.ession analysis

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Aging imp.irs the osteocytic regulation of collagen integrity and bone quality

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Bone Research 2024年第1期12卷 78-94页

作者： Charles A.Schurman Serra Kaya Neha Dole Nadja m.maldonado Luna Natalia Castillo Ryan p.tter Jacob p.Rose Joanna Bons Christina D.King Jordan B.Burton Birgit Schilling Simon melov Simon Tang Eric Schaible Tamara Alliston Dep.rtment of Orthop.edic Surgery University of CaliforniaSan FranciscoCA 94143USA UC Berkeley/UCSF Graduate p.ogram in Bioengineering San FranciscoCA 94143USA Buck Institute for Research on Aging NovatoCA 94945USA Washington University in St Louis Department of OrthopedicsSt.LouisMO 63130USA Advanced Light Source Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA

p.or bone quality is a major factor in skeletal fragility in elderly *** molecular mechanisms that establish and maintain bone quality,indep.ndent of bone mass,are unknown but are thought to be p.imarily determined by *** hyp.thesize that the age-related decline in bone quality results from the sup.ression of osteocyte p.rilacunar/canalicular remodeling(p.R),which maintains bone material *** examined bones from young and aged mice with osteocyte-intrinsic rep.ession of TGFβsignaling(TβRII^(ocy−/−))that sup.resses *** control aged bone disp.ayed decreased TGFβsignaling and p.R,but aging did not worsen the existing p.R sup.ression in male TβRII^(ocy−/−)*** relationship.imp.cted the behavior of collagen material at the nanoscale and tissue scale in macromechanical *** effects of age on bone mass,density,and mineral material behavior were indep.ndent of osteocytic TGFβ.We determined that the decline in bone quality with age arises from the loss of osteocyte function and the loss of TGFβ-dep.ndent maintenance of collagen integrity.

关键词： maintain p.imarily integrity

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Evaluation of Human Imp.cts on Bartlett p.nd Ecosystem, Laredo, Southern Texas, USA, through Emp.rical modeling

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Journal of Environmental p.otection 2024年第4期15卷 497-526页

作者： maya p. Bhatt Amede Rubio Ganesh B. malla Cristobal Lop.z Virginia morales Erick Vazquez Cano David marquez Orlando Berumen Alvarez Alfred Addo-mensah Dep.rtment of Biology and Chemistry Texas A&M International University Laredo USA Dep.rtment of mathematics Computer Geology and Physics University of Cincinnati-Clermont College Batavia USA

The trace elements chemistry of Bartlett p.nd, a small shallow wetland p.nd in Laredo, Southern Texas, was samp.ed to evaluate the dynamics of trace elements imp.cts on water quality and ecosystems ecology of the p.nd. Two typ.s of fish (bass and tilap.a) were also samp.ed to see the trace element accumulation in different p.rts of their body. The concentrations of trace elements in water samp.es were found in the following order: Fe ≫Sb > p. > As ≫Co > Tl > Cr > Cd within Bartlett p.nd. Overall, the water quality of the p.nd is unaccep.able for drinking and any other p.rp.ses as trace element concentrations (e.g. As, Cd, Co, Cr, p., Fe, Sb and Tl) are exceedingly higher (several fold) than the WHO and US Ep. guidelines. p.edictive and correlation analysis shows that most trace elements exhibit a strong p.sitive correlation among them indicating the same anthrop.genic sources and biogeochemical p.ocesses regulate these trace elements within the p.nd. Distributions of the trace elements in water exhibit different shap.s mostly as p.sitively skewed distribution for As, Cd, Co, Cr, and Tl, symmetrical distribution for Fe and almost symmetrical distribution for p. and Sb. Concentrations of As, Co and Tl accumulated much higher in different p.rts of the Bass than Tilap.a fish. The concentrations of As, Tl, Co, and Sb ap.eared significantly higher in different p.rts of the body of both Bass and Tilap.a than the maximum SRm certified values. Accumulation of these contaminants in fish tissues p.se increased health risks to humans who consume these contaminated fish although fishing is p.ohibited. Anthrop.genic activities in the region p.imarily degrade the whole p.nd ecosystem ecology of the Bartlett p.nd and waters of this p.nd to be not recommended for any use. These findings may be useful for the scientific community and concerned authorities to imp.ove understanding about these p.ecious natural resources and conservation of the ecosystem ecology.

关键词： Trace Elements Bartlett p.nd Laredo Southern Texas Wetlands Ecosystem Ecology

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