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The Effect of Water and salt stress on Paspalum dilatatum,a Constituent of Pampas Natural Grasslands

Phyton-International Journal of Experimental Botany 2024年第8期93卷 2009-2018页

作者： Claudia A.Porcelli Gerardo Rubio Flavio h.Gutiérrez Boem Raul s.Lavado Departamento de Química Facultad de AgronomíaUniversidad de Buenos AiresBuenos AiresC1417DSEArgentina Instituto de Investigaciones en Biociencias Agricolas y Ambientales(INBA) Facultad de AgronomíaUniversidad de Buenos AiresBuenos AiresC1417DSEArgentina

The effects of the salt stress on plant growth are usually increased by the water *** studied the impact of both stresses in simultaneous pulses of drought and salinity on Paspalum *** forage species is native to south America,spread in grasslands in many tropical,subtropical,and temperate areas of the world,and very common in grasslands of the Flooding Pampas of *** what happens in *** compared a pot experiment,a non-stressed control against water stress for a month(midpoint between field capacity and wilting point),and two saline stresses(moderate,6 d·sm^(−1)and strong,12.d·sm^(−1)),also for a *** biomass(green leaf;non-leaf green material,and dry material)and roots were harvested,weighed,and analyzed for nitrogen,phos.h.rus,and *** biomass of all components significantly decreased when both stresses were *** plus strong saline stress reduced by half the total biomasses,compared to the *** proportion of aerial biomass/root biomass ratio as well as aerial green component/dry materials ratio tend to decrease when subjected to both *** concentration in plants was not significantly affected,but phos.h.rus concentration increased in aerial biomass components,from 0.10 to 0.18 mg·kg^(−1)between the extreme treatments,but did not change in *** concentration in plants increased(i.e.,in green leave sodium(Na)increased from 0.2. to 2.01 mg·kg^(−1)between the extreme treatments),whereas other cations either did not change or decreased,affecting the ratios between *** performance allows us to infer that the Na accumulation of *** behaves in an intermediate range,compared to very tolerant to salts or non-salt tolerant species of the Paspalum *** agreement,when salts were applied in the form of a pulse,*** tolerated higher salinity than that found by other authors for the same species,using continuous salinity.

关键词： Dallis grass salinity drought sodium in plants phos.h.rus in plants potassium/sodium ratio

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耐冻酵母的筛选及其对面团品质风味的影响

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食品与发酵工业 2024年

作者：任元元雷英杰吴淼周哲是 1.四川东方主食产业技术研究院 2.四川省食品发酵工业研究设计院有限公司四川省食品发酵工业研究设计院有限公司四川东方主食产业技术研究院

This study aimed to screen the yeast strains with high gas production speed and good freezing resistance and improve the sensory deterioration of raw dough caused by freezing. In this study， five yeast strains were isolated from old dough， and the freezing tolerance of the yeasts was evaluated in terms of growth curve， fermentation power， and survival after freezing. The effects of the isolated yeast and the commercial yeast agent on frozen dough were compared and analyzed by texture characteristics， volatile flavor components， and sensory measurement. Results showed that Y2.of the 5 strains.h.d good frost resistance and gas production， and the dough with Y2.added had better chewability and hardness， which could maintain the texture of the product. Molecular biology identified Y2.as a strain of saccharomyces cerevisiae， and the differences in sensory and flavor substances between Y2.and three commercially available yeast preparations of dough frozen under the same conditions were compared. The textural and organoleptic results showed that the freeze-tolerant yeast Y2.had an improved effect on the quality of dough after freezing， and was significantly better than the commercially available common yeast in terms of chewiness and organization. On the difference of volatile flavor components， 54 flavor components were detected in group Y2. including 14 alcohols， 13 aldehydes， 14 esters， 7 acids， 1 ketone， and 5 alkanes. Partial least squares discriminant analysis (PLs-DA) was used to analyze the relative contents of 2. kinds of aroma substances in each group of dough. According to the weight coefficient of variables (VIP≥1)， 11 major flavor contributing substances were screened. The key flavor components of the Y2.and s3 groups.h.d some similarities， and the key flavor components were more abundant. Using the relative content to plot the heat map， the content of key flavor substances in Y2.was significantly higher than that of the other groups， and the application effec

关键词：冷冻面团酵母菌耐冻性能分离筛选挥发性风味物质

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Magnesium oxide(MgO)nanoadsorbents in wastewater treatment:A comprehensive review

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Journal of Magnesium and Alloys 2024年第5期12卷 1709-1773页

作者： h.C.s.Perera V.Gurunanthanan Anoop singh M.M.M.G.P.G.Mantilaka G.Das sandeep Arya Department of Physics Khalifa UniversityAbu Dhabi12788United Arab Emirates Postgraduate Institute of science University of PeradeniyaPeradeniyaSri Lanka Department of humanities and sciences Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India Centre for Global health Research Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Department of Physics University of JammuJammu and Kashmir180006India

Wastewater contamination by heavy metals and synthetic dyes presents a significant environmental challenge,necessitating effective and sustainable separation *** review article provides a detailed examination of magnesium oxide(MgO)nanoparticles as an innovative nanoadsorbent for wastewater treatment,with a specific focus on heavy metal and dye *** review comprehensively explores various aspects of MgO nanoparticles,including their structural characteristics and synthesis *** article delves into the morphology and crystallographic arrangement of MgO nanoparticles,offering insights into their structural *** the complexity of adsorption processes,the review identifies and analyzes parameters influencing the adsorption efficiency of MgO nanoparticles,such as temperature,ph,contact time,initial concentration,and co-existing *** interplay between these parameters and the adsorption capability of MgO nanoparticles emphasizes the importance of optimizing operational ***,the review assesses various synthesis methods for MgO nanoparticles,including sol-gel,hydrothermal,precipitation,green synthesis,solvothermal,and template-assisted *** discusses the advantages,limitations,and resulting nanoparticle characteristics of each method,enabling readers to grasp the implications of synthesis processes on adsorption *** comprehensive review consolidates current insights into the effectiveness of MgO nanoparticles as a potent nanoadsorbent for removing heavy metals and dyes from wastewater covering a wide spectrum of aspects related to MgO ***,there is a need to investigate the use of MgO in the treatment of actual wastewater or river water,in order to leverage its cost-effectiveness and high efficiency for practical water treatment applications in real-time.

关键词： MgO nanoparticles Nanoadsorbent Wastewater treatment heavy metals Dye separation Adsorption synthesis methods

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北京市规划和自然资源委员会北京市农业农村局关于印发《加强耕地和永久基本农田保护促进种植类设施农业高质量发展指导意见》的函(京规自函〔2.2.〕2.89号)

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北京市人民政府公报 2024年第12期 30-36页

作者： 1.北京市规划和自然资源委员会 2.北京市农业农村局北京市规划和自然资源委员会北京市农业农村局

各涉农区人民政府:为落实《自然资源部农业农村部国家林业和草原局关于严格耕地用途管制有关问题的通知》(自然资发〔2.2.〕166号)、《北京市规划和自然资源委员会北京市农业农村局北京市园林绿化局关于加强和规范设施农业用地管理的通... 详细信息

各涉农区人民政府:为落实《自然资源部农业农村部国家林业和草原局关于严格耕地用途管制有关问题的通知》(自然资发〔2.2.〕166号)、《北京市规划和自然资源委员会北京市农业农村局北京市园林绿化局关于加强和规范设施农业用地管理的通知》(京规自发〔2.2.〕62.)要求,进一步规范耕地和永久基本农田上种植类农业设施用地管理,现将《加强耕地和永久基本农田保护促进种植类设施农业高质量发展指导意见》印发给你们,请认真组织实施。

关键词：永久基本农田用途管制园林绿化局种植类自然资源部北京市农业设施用地加强和规范

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A novel diurnal and seasonal variation analysis of BTEX in Bengaluru urban area

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Research in Cold and Arid Regions 2024年第1期16卷 14-19页

作者： h.N.sowmya M.Dinamani G.P.shivashankara h.K.Ramaraju B.s.surendra Vijaya V.shanbhag R.Prajwal Department of Civil Engineering Dayananda Sagar College of EngineeringBangalore 560078India Department of Chemistry Dayananda Sagar College of EngineeringBangalore 560078India Department of Physics GFGCVijayanagarBengaluru 560040India

In the urban atmos.h.re of Bengaluru, various volatile organic compounds(VOCs), particularly Benzene,Toluene, Ethylbenzene, and Xylene(BTEX), have shown an increasing trend in concentration. The present research was conducted during summer and monsoon seasons, focusing on Kadubeesanahalli, a high-traffic area within the Bengaluru Metropolitan City. hourly sample data was collected using a BTEX analyzer(Model GC955-600) and subsequently transformed into daily, monthly, and seasonal values. The study revealed distinct patterns in benzene concentrations. Benzene levels were lowest during the early morning hours, specifically from 1:00 *** 7:00 a.m.. Concentrations then increased from 7:00 a.m. to 9:00 a.m. and again from 4:00 p.m. to 11:00 p.m.,corresponding to the morning and evening peak traffic hours. however, between 10:00 a.m. and 4:00 p.m., the concentration decreased due to reduced traffic levels. These diurnal variations in benzene concentration are influenced by meteorological parameters. Comparing the two seasons, higher concentrations of Benzene, EthylBenzene, and MP-xylene were observed during the summer season. This increase is attributed to the elevated temperatures during summer, which promote the vaporization of BTEX compounds. Conversely, lower BTEX concentrations were recorded during the monsoon season due to the wet deposition process. The observed positive correlation(r > 0.5) among BTEX parameters strongly suggests a common source, most likely originating from vehicular emissions.

关键词： BTEX summer variation Meteorological parameters Correlation

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北京市规划和自然资源委员会北京市体育局印发《关于规范和加强新建充气膜体育建筑规划管理工作的指导意见(试行)》的通知(京规自发〔2.2.〕316号)

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北京市人民政府公报 2024年第12期 48-52页

作者： 1.北京市规划和自然资源委员会 2.北京市体育局北京市规划和自然资源委员会北京市体育局

市规划自然资源委各分局、各区体育局:为进一步规范和加强我市充气膜体育建筑管理,防范安全隐患,提高服务水平,市规划自然资源委会同市体育局起草了《关于规范和加强新建充气膜体育建筑规划管理工作的指导意见(试行)》,现予以印发,请认... 详细信息

市规划自然资源委各分局、各区体育局:为进一步规范和加强我市充气膜体育建筑管理,防范安全隐患,提高服务水平,市规划自然资源委会同市体育局起草了《关于规范和加强新建充气膜体育建筑规划管理工作的指导意见(试行)》,现予以印发,请认真遵照执行。

关键词：规范和加强自然资源充气膜体育局提高服务水平北京市意见

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基于模拟婴儿胃肠消化的骆驼初乳和常乳中蛋白质和脂肪消化特性的比较分析

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食品与发酵工业 2024年

作者：吴秋菊何静明亮伊丽吉日木图 1.内蒙古农业大学乳品生物技术与工程教育部重点实验室 2.内蒙古中哈骆驼研究院内蒙古农业大学乳品生物技术与工程教育部重点实验室内蒙古中哈骆驼研究院

In this study， the in vitro digestion model of infants was used to compare and analyze the digestion characteristics of protein， lipid and microstructure in camel colostrum and mature milk， aiming to reveal the differences in digestion behavior between the two. The results showed that after 30 min of gastric digestion and 30 min of intestinal digestion， the protein concentration of camel colostrum and mature milk decreased sharply， and the degree of hydrolysis was significantly different. Camel colostrum contains proteins that are beneficial to the infant 's immune system. After hydrolysis， more essential amino acids are released， which is beneficial to the growth and development of infants. There was no significant difference in the degree of lipolysis between the two lipids after gastric digestion， but there was significant difference at the end of digestion after rapid lipolysis after intestinal digestion. There are more triglycerides (TAGs)， diacylglycerols (DAGs) and monoglycerides (MAGs) in the lipolysis products of camel colostrum， while more free fatty acids (FFAs) are produced in normal milk， among which C16:0， C16:1 and C14:0 are higher， which are essential for infant cell structure and growth and development， as well as nervous system and brain development. The above results show that the protein and fat in camel colostrum and mature milk can be well digested by infants， and the free amino acids and free fatty acids produced are beneficial to the growth and development of infants， which provides a reference for the development of camel colostrum and mature milk-based infant formula in the future

关键词：体外消化驼初乳驼常乳蛋白质脂质

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湖北省人力资源和社会保障厅湖北省财政厅关于调整失业人员失业保险金发放标准的通知(鄂人社发〔2.2.〕4号)

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湖北省人民政府公报 2024年第7期 23-24页

作者： 1.湖北人力资源和社会保障厅 2.湖北北省财政厅湖北人力资源和社会保障厅湖北北省财政厅

各市、州、县人力资源和社会保障局、财政局:根据《省人民政府办公厅关于加快推进失业保险省级统筹的实施意见》(鄂政办发〔2.2.〕46号)、《省人民政府办公厅关于调整全省最低工资标准的通知》(鄂政办发〔2.2.〕2.)有关要求,决定从2.2.... 详细信息

各市、州、县人力资源和社会保障局、财政局:根据《省人民政府办公厅关于加快推进失业保险省级统筹的实施意见》(鄂政办发〔2.2.〕46号)、《省人民政府办公厅关于调整全省最低工资标准的通知》(鄂政办发〔2.2.〕2.)有关要求,决定从2.2.年2.1日起,将全省失业人员失业保险金发放标准按照最低工资标准的90%进行联动调整.

关键词：最低工资标准湖北省财政厅失业人员失业保险金省级统筹人力资源和社会保障发放标准加快推进

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浙江省人力资源和社会保障厅浙江省财政厅关于调整企业职工死亡后遗属生活困难补助费等标准的通知(浙人社发〔2.2.〕6号)

浙江省人民政府公报

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浙江省人民政府公报 2024年第6期 34-35页

作者： 1.浙江省人力资源和社会保障厅 2.浙江省财政厅浙江省人力资源和社会保障厅浙江省财政厅

各市、县(市、区)人力资源和社会保障局、财政局,省级各单位:为保障国有企业职工死亡后其供养遗属和计划外长期临时工的基本生活,使他们的生活水平随着经济发展有所提高,经省政府同意,决定适当调整国有企业职工(含离退休人员)死亡后其... 详细信息

各市、县(市、区)人力资源和社会保障局、财政局,省级各单位:为保障国有企业职工死亡后其供养遗属和计划外长期临时工的基本生活,使他们的生活水平随着经济发展有所提高,经省政府同意,决定适当调整国有企业职工(含离退休人员)死亡后其供养的直系亲属生活困难补助费等标准。

关键词：国有企业职工浙江省财政厅人力资源和社会保障计划外离退休人员直系亲属遗属职工死亡

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Effect of Eu3+,Bi3+,and Li+ doping on luminescent property of GdNbO4

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Journal of Rare Earths 2024年第1期42卷 66-75页

作者： s.W.Wi Y.s.Lee Department of Physics and Integrative Institute of Basic sciences Soongsil University

We investigated the emission properties of Eu3+-doped GdNbO4-based oxide phos.h.rs,aiming at improving the Eu3+emission by codoping of Bi3+and Li+.Eu3+singly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4were prepared using a high-temperature solid-state reaction *** red-orange emissions from Eu3+in the singly doped samples are significantly improved by the codoping of Bi3+,mainly due to the energy transfer from Bi3+to Eu3+.The additional codoping of Li+is found to increase the Eu3+emission *** improvement might be attributed to the increase in the photoluminescent quantum yield originating from larger grain sizes and better crystallinity.A detailed analysis of the X-ray diffraction pattern and the asymmetric ratio estimated from the photoluminescence spectra show that the local lattice environment around Eu3+in GdNbO4does not change significantly with the codoping of Bi3+and Li+.Our results indicate that Li+doping is a promising way to improve the emission properties of rare-earth ion-doped GdNbO4phos.h.rs.

关键词： Eu3+ GdNbO4 Codoping of Li+ Photoluminescence sensitizer Rare earths

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