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Resistance and resilience of soil biological indicators:A case study with multi-walled carbon nanotube

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Pedosphere 2024年第3期34卷 664-675页

作者： shagufta YASMEEN Nintu MANDAL Anupam DAS Pritam GANGULY Sanjay KUMAR Rajiv RAKSHIT Department of Soil Science and Agricultural Chemistry Bihar Agricultural UniversitySabourBhagalpur 813210(India) Department of Agronomy Bihar Agricultural UniversitySabourBhagalpur 813210(India)

Soil ecosystem is experiencing stresses due to climate change,and soil inhabitants try to demonstrate their inherent resistance and resilience against those *** of nanomaterials as agricultural inputs could bring shifts in resistance and resilience patterns of soil microbes and associated enzymes,especially under short-term heat *** this background,the impacts of multi-walled carbon nanotube(MWCNT)on the resistance and resilience of soil biological indicators were *** incubation experiment was conducted with varied MWCNT concentrations(0,50,100,250,and 500 mg kg-1soil)for 90 d after 24-h heat stress at 48±2?C to assess the impacts of MWCNT on soil enzyme activities and microbial populations vis-à-vis their resistance and resilience indices under short-term exposure to heat *** activities were reduced after exposure to heat *** indices of enzyme activities were enhanced by MWCNT application on day 1 after heat stress,whereas there was no recovery of enzyme activities after 90-d *** soil enzyme activities,resistance index values of soil microbial populations followed the similar trend and were improved by MWCNT ***-walled carbon nanotube has the potential to improve resistance indices of soil enzyme activities and microbial populations under heat stress,although they could not recover to their original state during periodical incubation after heat *** study helps to understand the relative changes of biological indicators under MWCNT and their ability to withstand heat stress.

关键词： enzyme activity heat stress microbial population nanomaterial recovery

Morpho-anatomical adaptations of dominantly grown wild Datura inoxia to wastewater resource:Productivity and ecological issues

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Geoscience Frontiers 2024年第3期15卷 248-258页

作者： Taimoor Hassan Farooq shagufta Jabeen Awais Shakoor Muhammad Saleem Arif Nadia Siddique Khuram Shahzad Muhammad Umair Riaz Yong Li Bangor College China a Joint Unit of Bangor University and Central South University of Forestry and TechnologyChangsha 410004HunanChina Department of Botany The Islamia University of BahawalpurBahawalpur 63100Pakistan Hawkesbury Institute for the Environment Western Sydney UniversityPenrithNSW 2751Australia Department of Environmental Sciences Government College University FaisalabadFaisalabad 38000Pakistan Department of Forestry Rangeand Wildlife ManagementThe Islamia University of BahawalpurBahawalpur 63100Pakistan Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China National Engineering Laboratory for Applied Technology of Forestry and Ecology in South China Central South University of Forestry and TechnologyChangsha 410004HunanChina

With the increasing global water scarcity,wastewater irrigation has become widespread,but it can have detrimental ecological *** wastewater contains valuable nutrients for plants,improper treatment or the use of untreated wastewater in irrigation can negatively impact soil fertility and plant *** study is divided into two parts:firstly,a phytosociological survey was conducted to identify plant species with the highest importance value index(IVI)in the vicinity of wastewaterirrigated ***,a comparative morpho-anatomical analysis was carried out to investigate the morpho-anatomical adaptations of the species with the highest IVI under wastewater irrigation compared to normal water *** results of the phytosociological survey revealed the presence of 51 plant species in the vicinity of the wastewater-irrigated areas,with varying relative densities and *** inoxia exhibited the highest IVI(28.79),followed by Xanthium strumarium(24.34),while Lippia nodiflora showed the lowest IVI(1.86).The morphological growth of *** was superior under normal water irrigation,but the average root length was greater under wastewater *** cell anatomy,cell thickness and cell area characteristics in the dermal,ground,and vascular tissues of the stem and root tended to be greater under wastewater ***,the opposite trend was observed in leaf anatomical analysis,possibly due to the combined effect of wastewater and climatic *** and root xylem thickness were greater under wastewater irrigation,whereas phloem thickness was higher under normal water *** number of vascular bundles in the stem,root,and leaf was higher under wastewater treatment compared to normal water irrigation,but their arrangement was circular in the latter and scattered under wastewater *** inoxia demonstrated strong adaptive potential under wastewater irrigation,as indicated by its highest relative d

关键词： Water pollution Phytosociology Structural growth Phytoremediation Agricultural irrigation Ecological concerns

Aqueous solution of basic fuchsin as food irradiation dosimeter

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Nuclear Science and Techniques 2007年第3期18卷 141-144页

作者： Hasan M.KHAN shagufta NAZ Radiation Chemistry Laboratory National Centre of Excellence in Physical ChemistryUniversity of PeshawarPeshawar 25120 Pakistan

Dosimetric characterization of aqueous solution of basic fuchsin was studied spectrophotometrically for possible application in the low-dose food irradiation dosimetry. Absorption spectra of unirradiated and irradiated solu- tions were determined and the decrease in absorbance with the dose was noted down. Radiation-induced bleaching of the dye was measured at wavelengths of maximum absorption λmax (540nm) as well as 510nm and 460 nm. At all these wavelengths, the decrease in absorbance of the dosimeter was linear with respect to the absorbed dose from 50 Gy to 600 Gy. The stability of dosimetric solution during post-irradiation storage in the dark at room temperature showed that after initial bleaching during first ten to twenty days, the response was almost stable for about 34 days. The study on the effect of different light and temperature conditions also showed that the response gradually decreased during the storage period of 34 days, which shows that basic fuchsin dye is photosensitive as well as thermally sensitive.

关键词：水溶液食物辐射计量品红

Selective Catalytic Reduction of NOx with NH3 Using Coal Ash Catalyst

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Selective Catalytic Reduction of NOx with NH3 Using Coal Ash...

作者： shagufta Fareed 上海交通大学

学位级别：硕士

选择性催化还原烟气脱硝技术(SCR)是去除电站锅炉烟气中氮氧化物的有效方法之一。在SCR中使用商用催化剂VO/Ti O的运行成本较高,但是FeO金属氧化物催化剂具有较高的成本效益和效率。本文的重点是利用煤灰催化剂以及NH3选择性催化还原NO... 详细信息

选择性催化还原烟气脱硝技术(SCR)是去除电站锅炉烟气中氮氧化物的有效方法之一。在SCR中使用商用催化剂VO/Ti O的运行成本较高,但是FeO金属氧化物催化剂具有较高的成本效益和效率。本文的重点是利用煤灰催化剂以及NH3选择性催化还原NO的实验研究。本文选择了各种具有不同元素组成的原煤样品,以分析选择性催化还原的性能。将煤样品粉碎成不同的粒径,并在不同温度(800 C至1800C)下煅烧以影响催化剂的性能。通过氮吸附法测量煤灰的BET比表面积。XRD用于表征煤灰催化剂的相结构,SEM用于分析催化剂的形态。最佳SCR性能的实验是在200C-550C的范围内进行的。同时,用不同的FeO负载量负载煤灰催化剂,以分析氧化铁含量对SCR性能的影响。根据实验结果,随着煅烧温度的升高,粉煤灰的比表面积减小,极大地影响了SCR的性能。实验结果证明,随着氧化钙含量的降低,煤灰的催化性能提高。较低比例的氧化钙以及较小的煤灰粒径有助于提高SCR性能,但是NO浓度对SCR性能影响很小。8%FeO负载的粉煤灰催化剂在较低空速(15000h)下具有70%的最高催化效率。将氧化铁以最佳的含量添加到煤灰中,以获得具有优异SCR性能的比表面积。

关键词：煤灰 NOx 选择性催化还原

Complex and thermodynamic properties of polar liquids using time domain reflectometry

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Journal of Advanced Dielectrics 2018年第5期8卷 22-27页

作者： shagufta Tabassum V.P.Pawary Department of Physics&Electronics Maharashtra Udayagiri Mahavidyalaya UdgirLatur 413517MaharashtraIndia Sunderrao Solanke Mahavidyalaya Majalgaon Beed 431131MaharashtraIndia

The study of complex properties in a binary mixture of 1,2-dichloroethane(DE)and n-methylformamide(NMF)polar liquids has been carried out in the frequency range of 10 MHz to 30 GHz for 11 different concentrations using time domain reflectometry technique at 283,288,293 and 298 K *** property of binary liquids indicates the type of distribution of the dielectric relaxation *** Bruggeman parameter gives the information about molecular interactions within binary polar *** parameter deals with the passing of a dipole across a potential barrier which separates the minima of energy.

关键词： Time domain reflectometry complex properties Bruggeman parameters 1,2-dichloroethane n-methylformamide thermodynamic parameters.

Mycetoma at a tertiary care hospital in Saudi Arabia: correlation of histopathological and clinical findings

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Asian Pacific Journal of Tropical Biomedicine 2015年第4期5卷 331-336页

作者： shagufta Tahir Mufti Hessa Aljhdali Departments of Anatomic Pathology Faculty of Medicine King Abdulaziz University

Objective: To present the histopathological and clinical correlation of mycetoma among patients attending King Abdulaziz University Hospital between ***: The data of all histopathologically diagnosed mycetomas in the period between January 1998 and January 2013 were collected through a computerized database search of the anatomic pathology archives at King Abdulaziz University Hospital. The collected data were analysed. Identification of species were performed for five patients using 16 S ribosomal DNA and internal transcribed spacer ***: There were 19 patients with mycetoma with an average age of 44.26 years and male: female ratio of 4:1. Actinomycetoma were 63.15% and eumycetoma were 36.84%. All patients presented with the classic lesions; presenting as painless subcutaneous mass, sinuses and discharge containing grains. The swellings were of slow evolution, with preferential foot localization. Species specification performed for samples from five patients with active lesions revealed species of Actinomyces israelii and Madurella mycetomatis in respective ***: Actinomycetoma is more common than eumycetoma in this region. The fact that one of the patients with eumycetoma was a Saudi national raises the possibility of an indigenous species similar to Maduraella mycetomatis to be further explored for characteristics and pathogenesis. The disease has to be prioritized again and more robust and quick molecular diagnostic tools should be made available in order to save patients form disfiguring amputations.

关键词： Mycetoma Madura Cementing matrix Actinomycetoma Saudi Arabia 16S rDNA

Complex permittivity spectra of binary polar liquids using time domain reflectometry

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Journal of Advanced Dielectrics 2018年第3期8卷 58-63页

作者： shagufta Tabassum V.P.Pawary Department of Physics and Electronics Maharashtra Udayagiri Mahavidyalaya Udgir Latur 413517MaharashtraIndia Principal Sunderrao Solanke MahavidyalayaMajalgaon Beed 431131MaharashtraIndia

The study of complex properties in a binary mixture of polar liquids has been carried out in the frequency range of 10 MHz to 30 GHz at 293 K and 298 K temperatures using time domain *** complex properties of polar liquids in binary mixture give information about the frequency dispersion in the dielectric permittivity(ε')and dielectric loss(ε").The information regarding the orientation of electric dipoles in a polar liquid mixture is given by Kirkwood *** Bruggeman parameters are used as the indicator of liquid1 and liquid2 *** entropy(ΔS)and molar enthalpy(ΔH)are also discussed at the end of the paper.

关键词： Time domain reflectometry dielectric dispersion Kirkwood correlation parameters Bruggeman parameters and thermodynamic parameters

Effect of Mental Health Problems on Academic Performance among University Students in Pakistan

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International Journal of Mental Health Promotion 2021年第3期23卷 395-408页

作者： shagufta Zada Yuefen Wang Muhammad Zada Fatima Gul Marxism School of Philosophy Northeast Forestry University HarbinHarbin150040China Department Business Administration Faculty of Management SciencesIlma UniversityKarachi75190Pakistan Business of School Henan University KaifengHenan475000China Department of Management Sciences Alhamd Islamic UniversityIslamabad44000Pakistan

Scientific interest in student’s mental health experiences has been increasing in the last years due to their influence on students’learning processes,academic performance,and recently,the suicidal news of a student at a private university due to her mental health condition in Lahore Punjab,Pakistan,captured public *** incident also shifted researchers and scholars’attention on the much underexplored and tabooed sphere of the broader public health ***,the current study aimed to explore the relationship between mental health problems and Pakistani university students’academic *** were 540 senior semester students within the age range of 20–35 years taken from public and private institutes of Pakistan’s major cities,including Lahore,Islamabad,and *** and inferential statistics was employed for data *** Product Moment Correlation,Hierarchical Regression analysis,and Independent sample t-test were used for data analysis in inferential *** results of the study reveal that there is a strong positive association between mental health and improvement in academic *** health problems negatively affect the academic performance of university *** findings of the current study were beneficial for shedding light on the ignorant area within the broader public health domain;the results are also helpful in raising awareness for not only students but also the parents and university administration to plan and design effective intervention strategies to provide proper mental health that resultantly promote academic excellence.

关键词： Mental health academic performance university students Pakistan

Changing Characteristic of Romantic Poetry in the 19th Century

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Sino-US English Teaching 2011年第4期8卷 260-265页

作者： Muhammad Qasim Bughio shagufta Jabeen University of Sindh Jamshoro Pakistan English Government College for Woman Sargodha Pakistan

Change is the law of nature. Every writer enriches literature by coining new ideas. As Aristotle disagreed with Plato by saying that poetry is not blind but creative imitation, and emotions if remain pent up in mind, would erupt sooner or later like a volcano. Later on Classics have written poetry either to praise kings and queens, or to reform the society, but Romantics like Aristotle ushered against Classics and penned down writings bearing entirely different characteristics than earlier poetry with creative imagination. This paper is captivating study of the meanings and changing characteristics of romantic poetry during 19th century. Romanticism means having a visionary, imaginative or emotional appeal, to give emotions upper hand over reason. It was not a sudden movement, tends and tendencies were already there, which reached to its climax in hands of Blake, Wordsworth, Shelley, Keats and Byron, who awakened against Pope, Swift and Johnson. Romanticism has its origin in French revolution. The distinctive features of French revolution are freedom, brotherhood and equality. Romanticism was a revolt against the system through which they tried to change the status of common men. William Blake was foremost among romantics who believed that this vegetable world is, but only a shadow of the real world which is of imagination and attempted to convey the celestial message of love everywhere. In the poetry of Wordsworth and Coleridge, the naturalistic tendency remained more prominent, whereas Keats＇ and Shelley＇s poetry in a more specified sense was romantic marked by the emphasis on love of the supernatural, the marvelous and the exotic mythological world. Victorian poetry was not original like Romantics. Romantics introduced poetry bearing entirely different character than earlier poetry, with original ideas, whereas Victorian poets had written about social problems. Romantics were individualistically supreme in their ideas. Tennyson and Arnold took themes of their poe

关键词： romanticism definition history changes