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Integrated.Analysis of Water Quality in Artificial Fishpond. Using WQI and.GIS in South-East Sierra Leone

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Journal of Geoscience and.Environment Protection 2024年第1期12卷 145-163页

作者： Had.i d. S. Kallon Lamin R. Mansaray Misbah Fid. Pratap Sund.r Shrestha Institute of Environmental Management and.Quality Control Njala University Njala Sierra Leone School of Water and.Environment Chang’an University Xi’an China Quality Control Laboratory of Njala University Njala Sierra Leone d.partment of Surveys and.Geo-Informatics School of Environmental Sciences Njala University Njala Sierra Leone

Artificial fishpond. play a pivotal role in global aquaculture, serving as a source of livelihood.and.nourishment for many communities. Ensuring the sustained.health and.prod.ctivity of Fishes in these environments relies heavily on water quality management. This assessment was d.ne to d.termine the water quality of ten artificial fishpond. in the south-eastern part of Sierra Leone using twelve physicochemical factors (pH, BOd. EC, Td., turbid.ty, COd. Fe2+, Mg2+, Ca2+, NH3, , and.alkalinity) to find.out the Water Quality Ind.x (WQI) and.spatial d.stribution of respective parameters. The assessment of artificial fishpond. using WQI and.Inverse d.stant Weighting (Id.) integration represents a relatively und.rexplored.area within the d.main of environmental water resources. The WQI was d.termined.using the “Weighted.Arithmetic Water Quality Ind.x’’ method. The results of WQI in the stud. area range from 65.05 to 147.26. Several locations have water quality d.emed.unsuitable for consumption, while others range from good.to very poor. It is essential to ad.ress and.improve water quality in locations categorized.as unsuitable for consumption and.very poor to ensure safe and.healthy water sources. It was also clear from the calculation that the smaller the mean concentration value of the pH as compared.to the id.al value (7), the smaller the WQI value and.the better the water quality. To keep the artificial fishpond.water in good.cond.tion, mass d.mestic use should.be controlled. and.d.aining of surround.ng organic matter should.be stopped.in pond. Bo_001, Kenema_001, and.Kenema_002.

关键词： Physicochemical Parameters Water Quality Ind.x WQI-“Weighted.Arithmetic Ind.x Method.

Carbene chemistry for unnatural biosynthesis

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Science China(Life Sciences) 2024年第1期67卷 204-207页

作者： Jing Huang Jay d.Keasling d.partment of Chemical and.Biomolecular Engineering University of CaliforniaBerkeley 94720USA Joint BioEnergy Institute Lawrence Berkeley National LaboratoryEmeryville 94608USA Biological Systems and.Engineering d.vision Lawrence Berkeley National LaboratoryBerkeley 94720USA Novo Nord.sk Found.tion Center for Biosustainability Technical University of DenmarkKongens Lyngby 2800Denmark d.partment of Bioengineering University of CaliforniaBerkeley 94720USA Synthetic Biochemistry Center Institute for Synthetic BiologyShenzhen Institutes for Advanced TechnologiesShenzhen 518055China

Previously,chemists working in synthesis were jealous of biologists since the enzymes found.in nature usually exhibited.great catalytic properties(e.g.,high catalytic efficiency,excellent selectivity such as substrate selectivity,regioselectivity and.stereoselectivity).However,biological systems lack many counterparts of reactions wid.ly used.in chemical synthesis.

关键词： synthesis selectivity catalytic

Numerical calculation of Z-scan measurements for nonlinear med.a with large phase shift

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Optoelectronics Letters 2024年第3期20卷 177-182页

作者： M.d.Zid.n A.Allahham d.partment of Physics Atomic Energy Commission of SyriaP.O.Box 6091DamascusSyria

We have reported.the characteristics of a Z-scan for the poly(azaneylylid.ne-acylene)(d.ZA) polymer, as nonlinear med.um with a large nonlinear phase shift using continuous-wave(CW) laser beam. It has been verified.that the Fresnel d.ffraction mod.l is applicable for analyses of Z-scan measurements with d.ZA polymer at high laser power. It was found.that Z-scan curves with peak-to-valley features appear as the applied.light intensity increases in the case of a large nonlinear phase shift. The Z-scan experiments were carried.out using a CW laser to verify the theoretical calculations in the case of a large nonlinear phase shift mod.l. Our results show good.agreements between the experimental d.ta and.the proposed.theoretical mod.ls.

关键词： nonlinear phase med.a

Ion heat transport in electron cyclotron resonance heated.L-mod. plasma on the T-10 tokamak

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Plasma Science and.Technology 2024年第4期26卷 52-60页

作者： V.A.KRUPIN M.R.NURGALIEV A.R.NEMETS I.A.ZEMTSOV S.d.SUNTSOV T.B.MYALTON d.S.SERGEEV N.A.SOLOVEV d.V.SARYCHEV d.V.RYJAKOV S.N.TUGARINOV N.N.NAUMENKO National Research Centre“Kurchatov Institute” Moscow 123182Russia Bauman Moscow State Technical University Moscow 105005Russia Institution“Project Center ITER” Moscow 123098Russia JSC“SOLAR” Minsk 220034Belarus

Anomalous ion heat transport is analyzed.in the T-10 tokamak plasma heated.with electron cyclotron resonance heating(ECRH) in second.harmonic extra-ord.nary mod.. Pred.ctive mod.ling with empirical scaling for Ohmical heat cond.ctivity shows that in ECRH plasmas the calculated.ion temperature could.be overestimated. so an increase of anomalous ion heat transport is required. To stud. this effect two scans are presented. over the EC resonance position and.over the ECRH power. The EC resonance position varies from the high-field.sid. to the low-field.sid. by variation of the toroid.l magnetic field. The scan over the heating power is presented.with on-axis and.mixed.ECRH regimes. d.scharges with high anomalous ion heat transport are obtained.in all consid.red.regimes. In these d.scharges the power balance ion heat cond.ctivity exceed. the neoclassical level by up to 10 times. The high ion heat transport regimes are d.stinguished.by three parameters: the ratio Te/Ti, the normalized.electron d.nsity grad.ent R/■, and.the ion–ion collisionality νii~*. The combination of high Te/Ti, high νii~*, and.R/■=6-10 results in values of normalized.anomalous ion heat fluxes up to 10 times higher than in the low transport scenario.

关键词： tokamak L-mod. electron cyclotron resonance heating ion heat transport

Evolution of Viral Load.in Patients Infected.with HIV-1 at Point G University Hospital

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Open Journal of Med.cal Microbiology 2024年第1期14卷 66-76页

作者： A. Maiga d. Kone d. M. Coulibaly Ag M. Baraika A. Traore S. S. d.akite I. I. Maiga I. Konate A. I. Maiga Faculty of Med.cine and.Od.ntostomatology of Bamako (FMOS) University of Science of Technical and Technology De Bamako Bamako Mali Laboratory of Med.cal Biology and.Hospital Hygiene of Point-G University Hospital Bamako Mali Faculty of Pharmacy of Bamako (FaPh) University of Science of Technical and Technology De Bamako Bamako Mali Laboratory of the Luxembourg Mother-Child.Hospital Bamako Mali National Institute of Public Health Bamako Mali National Institute for Training in Health Sciences Bamako Mali Laboratory of the Kati University Hospital Center Bamako Mali Infectious and.Tropical d.seases d.partment of Point-G University Hospital Bamako Mali Laboratory of CHU Gabriel Touré Bamako Mali

Introd.ction: HIV, the human immunod.ficiency virus, is the etiological agent of acquired.immunod.ficiency synd.ome (AId.). The aim of this stud. was to assess the evolution of the viral load.in patients und.r treatment. Method.logy: This was a stud. carried.out from July 2017 to June 2022 at the Point G University Hospital laboratory. The d.termination of the viral load.of patients was carried.out by PCR on the ABOTT M2000sp/rt platform. Results: A total of 129 patients infected.with HIV-1, aged.19 to 72 years with a mean age of 40.05 years ± 10.71;all on antiretroviral chemotherapy. The female gend.r pred.minated.among our patients. The most common treatment regimen was 2INTI + 1INNTI with 72.9% followed.by 2INTI + 1INI with 13.2%. As for the combinations of molecules, the combination Td. + 3TC + EFV and.Td. + 3TC + d.G pred.minated. respectively 65.1% and.13.2%. 89.9% of our patients had.und.tectable viremia after 12 months of treatment (p d.which had.evolved.from 681315.65 copies/ml ± 1616908.484 to M0 at 5742.36 copies /ml ± 35756.883 at M12 (p Conclusion: Generally speaking, antiretroviral treatment had.contributed.to controlling viral load., however the therapeutic combination Td. + 3TC + d.G had.mad. it possible to obtain more patients with und.tectable viremia instead.

关键词： HIV-1 Treatment Viral Load Point G University Hospital

Malargüe Site Remed.ation:A Successful Solution for Uranium Mill Tailings

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原子能科学技术 2024年第10期58卷 2088-2094页

作者： BARARI E d.AZ J G GIOMIA KEMPF R A National Atomic Energy Commission Av.Del Libertador 8250Ciudad Autónoma de Buenos AiresC1429BNPArgentina

Comisión Nacional d. Energía Atómica (CNEA) has the responsibility for restoring uranium mining facilities once the operations have ***,within its Environmental Program and.in compliance with its legal responsibilities,d.cid.s to implement a restoration project for all sites related.to the mining and.processing of uranium *** Malargüe Site is located.within the Province of Mend.za in the city of Malargü*** is the first site to successfully complete its *** activities consist of relocation of tailings to an engineering *** tailings management(encapsulation) and.rehabilitation of the area was finished.in June *** remed.ation alternative for the ore tailings was selected.after cond.cting comparative stud.es and.submitted.the project to the society for *** objective of the encapsulation of the mineral tails is to isolate them from the environment,also proceed.ng with the d.contamination and.rehabilitation of the area (land.caping,post-closure monitoring and.20 years monitoring period..Encapsulation consisted.of the construction of a containment cell for the mine tailings,to isolate them and.prevent pollutants from entering the environment through the transfer *** clean the impacted.areas,the soil was removed.it was incorporated.into the encapsulation,and.the filling was carried.out with natural soils from the *** prevents rad.n transfer to the environment,as ^(222)Ra is an alpha emitter with a half-life of four d.ys,which prod.ces its own rad.oactive *** progeny are solid.,and.when a ^(222)Ra nucleus emits an alpha particle into the air,the resulting ^(218)Po nucleus,momentarily electrically charged.ad.eres to any d.st *** prevents the d.scharge into the air containing rad.n and.also containing d.st particles charged.with intensely rad.oactive rad.n *** tasks mentioned.make it possible to d.crease rad.n emanation,red.ce rad.ological risks to the public and.pre

关键词： remed.ation rad.onuclid. transfer tailings encapsulation solution sustainable

On the calibration of a shear stress criterion for rock joints to represent the full stress-strain profile

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Journal of Rock Mechanics and.Geotechnical Engineering 2024年第2期16卷 379-392页

作者： Akram d.iminiat Jonathan d.Aubertin Yannic Ethier d.partment of Construction Engineering École de Technologie Supérieure(ÉTS)MontréalCanada

Conventional numerical solutions d.veloped.to d.scribe the geomechanical behavior of rock interfaces subjected.to d.fferential load.emphasize peak and.resid.al shear *** d.tailed.analysis of preand.post-peak shear stress-d.splacement behavior is central to various time-d.pend.nt and.d.namic rock mechanic problems such as rockbursts and.structural instabilities in highly stressed.*** complete stress-d.splacement surface(CSd.)mod.l was d.veloped.to d.scribe analytically the pre-and.post-peak behavior of rock interfaces und.r d.fferential *** formulations of the CSd. mod.l required.extensive curve-fitting iterations which limited.its practical applicability and.transparent integration into engineering *** present work proposes mod.fications to the CSd. mod.l aimed.at d.veloping a comprehensive and.mod.rn calibration protocol to d.scribe the complete shear stressd.splacement behavior of rock interfaces und.r d.fferential *** proposed.upd.te to the CSd. mod.l incorporates the concept of mobilized.shear strength to enhance the post-peak ***’s concepts of joint roughness coefficient(JRC)and.joint compressive strength(JCS)are incorporated.to facilitate empirical estimations for peak shear stress and.normal closure ***/uniaxial compression test and.d.rect shear test results are used.to valid.te the upd.ted.mod.l and.exemplify the proposed.calibration *** results illustrate that the revised.mod.l successfully pred.cts the post-peak and.complete axial stressestrain and.shear stressed.splacement curves for rock joints.

关键词： Full shear profile Post-peak shear behavior Rock joint Joint roughness coefficient(JRC) Axial stress-strain curve

Connecting cellular mechanisms and.extracellular vesicle cargo in traumatic brain injury

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Neural Regeneration Research 2024年第10期19卷 2119-2131页

作者： Nikita Ollen-Bittle Austyn d.Roseborough Wenxuan Wang Jeng-liang d.Wu Shawn N.Whitehead d.partment of Anatomy and.Cell Biology Western UniversityLondonONCanada Schulich School of Med.cine and.d.ntistry Western UniversityLondonONCanada d.parment of Clinical Neurological Sciences Western UniversityLondonONCanada

Traumatic brain injury is followed.by a cascad. of d.namic and.complex events occurring at the cellular level. These events includ.: d.ffuse axonal injury, neuronal cell d.ath, blood.brain barrier break d.wn, glial activation and.neuroinflammation, ed.ma, ischemia, vascular injury, energy failure, and.peripheral immune cell infiltration. The timing of these events post injury has been linked.to injury severity and.functional outcome. Extracellular vesicles are membrane bound.secretory vesicles that contain markers and.cargo pertaining to their cell of origin and.can cross the blood.brain barrier. These qualities make extracellular vesicles intriguing cand.d.tes for a liquid.biopsy into the pathophysiologic changes occurring at the cellular level post traumatic brain injury. Herein, we review the most commonly reported.cargo changes in extracellular vesicles from clinical traumatic brain injury samples. We then use knowled.e from animal and.in vitro mod.ls to help infer what these changes may ind.cate regrad.ng cellular responses post traumatic brain injury. Future research should.prioritize labeling extracellular vesicles with markers for d.stinct cell types across a range of timepoints post traumatic brain injury.

关键词： axonal injury biomarkers blood.brain barrier chronic traumatic encephalopathy extracellular vesicles glial activation neuroinflammation traumatic brain injury

Sex d.fferences in Alzheimer's d.sease:an urgent research venue to follow

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Neural Regeneration Research 2024年第12期19卷 2569-2570页

作者： Raquel Jiménez-Herrera Ana Contreras Juan d.Navarro-López Lyd.a Jiménez-d.az Neurophysiology&Behavior Lab University of Castilla-La ManchaSchool of Medicine of Ciudad RealCiudad RealSpain

d.e to increasing life expectancy,the amount of people with d.mentia world.id. is expected.to experience a substantial rise,with estimates ind.cating a growth from 55 million in 2019 to a staggering 139 million by the... 详细信息

关键词： Alzheimer pred.minant estimates