3,123 results match your criteria: "Institute of Natural Sciences[Affiliation]"

Integration of Moving Bed Biofilm Reactor (MBBR) and algal PhotoBioReactors (aPBR) for achieving carbon neutrality in wastewater treatment.

Sci Total Environ

December 2024

Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy.

Article Synopsis
  • Carbon neutrality is crucial for wastewater treatment plants due to their high greenhouse gas and odor emissions, prompting the exploration of new solutions.
  • A new modular biotechnology was developed, achieving impressive removal efficiency for pollutants like toluene (99.9%) while also enabling CO biofixation.
  • The findings highlight the system's adaptability and potential as an innovative, sustainable technology for improving air quality and reducing emissions in WWTPs.
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  • Recent research shows that cobaltites may serve as a valuable avenue for studying Kitaev physics in honeycomb structures and the Ising model in weakly linked chains.
  • The study investigates the magnetic properties of SrCoGeO using neutron scattering, ab initio methods, and linear spin-wave theory to propose a modified Kitaev model for the interactions in this material.
  • Findings indicate that external magnetic fields can shift the material's magnetic ordering and suggest modified pyroxenes could offer new insights into Kitaev physics.
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Herein, a straightforward approach using pulsed laser technology to synthesize selective hexagonal-close-packed (hcp) Ru nanoparticles attached to Cu nanospheres (Ru/Cu) as bifunctional electrocatalyst for catalyzing the hydrogen evolution reaction (HER) and formaldehyde oxidation reaction (FOR) are reported. Initially, Ru-doped CuO flakes are synthesized using a coprecipitation method followed by transformation into Ru/Cu composites through a strategy involving pulsed laser irradiation in liquid. Specifically, the optimized Ru/Cu-4 composite not only demonstrates a low overpotential of 182 mV at 10 mA·cm for the HER but also an ultralow working potential of 0.

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LATTICE, a spatially fractionated radiation therapy (SFRT) modality, is a 3D generalization of GRID and delivers highly modulated peak-valley spatial dose distribution to tumor targets, characterized by peak-to-valley dose ratio (PVDR). Proton LATTICE is highly desirable, because of the potential synergy of the benefit from protons compared to photons, and the benefit from LATTICE compared to GRID. Proton LATTICE using standard proton RT via intensity modulated proton therapy (IMPT) (with a few beam angles) can be problematic with poor target dose coverage and high dose spill to organs-at-risk (OAR).

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Homosalate (HS) and octisalate (OS), which are used in sunscreen for the purpose of blocking ultraviolet rays, are frequently detected in water environment. Although effects on estrogens and androgens have been reported, studies on thyroid and growth hormone endocrine disruption are limited. In the present study, larval mortality was compared in wild-type and two knockout fish (thyroid hormone receptor alpha a knockout (thrαa) and dre-miR-499 knockout (dre-miR-499)) after 96 h of exposure to HS and OS (0, 0.

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In this study, quince soluble dietary fiber (SDF) and insoluble dietary fiber (IDF) were obtained by acid extraction, enzyme extraction and alkaline extraction methods. The acid extracted DF displayed higher results compared to enzyme and alkaline extraction methods in terms of water holding capacity (15.97 g/g SDF), oil holding capacity (1.

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Modeling nonadiabatic conical intersection dynamics is critical for understanding a wide range of photophysical, photochemical, and biological phenomena. Here we develop a nonadiabatic conical intersection wave packet dynamic method in the local diabatic representation using Smolyak sparse grids. Employing sparse grids avoids the direct-product grids in configuration space and alleviates the exponential scaling of computation costs with the molecular size.

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Multilayered [Cu(3 nm)/FeNi(100 nm)]/Cu(150 nm)/FeNi(10 nm)/Cu(150 nm)/FeNi(10 nm)/Cu(150 nm)/[Cu(3 nm)/FeNi(100 nm)] structures were obtained by using the magnetron sputtering technique in the external in-plane magnetic field. From these, multilayer magnetoimpedance elements were fabricated in the shape of elongated stripes using the lift-off lithographic process. In order to obtain maximum magnetoimpedance (MI) sensitivity with respect to the external magnetic field, the short side of the rectangular element was oriented along the direction of the technological magnetic field applied during the multilayered structure deposition.

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Screening and quantification of pesticides in wetland water, ice, sediment and soil: Occurrence, transport and risk assessment.

Environ Res

December 2024

International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin, 150090, China. Electronic address:

Current researches on pesticides in wetlands are limited in terms of screening and quantification of many types of pesticides. Understanding the spatial and temporal dynamics, distribution patterns, and environmental risks of pesticides in multiple media is important for wetland ecological conservation. In this study, 222 pesticides were determined in multimedia samples collected simultaneously from the Songhua Wetland during four seasons.

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The estuarine ecological environment faces significant threats from contaminants of emerging concern (CECs); yet, the risk posed by CECs to resident organisms remains poorly understood. Here, we employed tiered toxicity testing to investigate the adverse effects and potential mechanisms of tris (1-chloro-2-propyl) phosphate (TCPP) on the early life stages of an estuarine fish, Mugilogobius chulae. TCPP affected the development of M.

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Article Synopsis
  • Marine sediments are significant carbon stores, but bottom trawl fisheries disturb seabed habitats, potentially impacting the ocean's carbon dioxide sink.
  • Research is concerned that trawling may turn these sediments into a significant source of CO, but there's a lot of uncertainty due to limited understanding of how trawling affects sediment mixing and carbon processes.
  • A review protocol will investigate the effects of mobile bottom fishing on carbon processing and storage in sediments by addressing various questions about carbon types, fluxes between benthic and pelagic systems, and the biological and physical controls on this carbon.
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  • Drought is a major environmental challenge affecting socio-economic development, prompting research into improving resilience for sustainable growth in cities.
  • A study in China developed a framework to assess drought resilience, revealing a 14.4% increase in resilience over 12 years, with central and eastern coastal provinces showing better resilience compared to the inland west.
  • The study highlighted social resilience as the most influential factor and predicts a 6.2% overall increase in drought resilience, emphasizing the need for targeted policies based on regional differences.
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The arylbipyridine platinum (II) complex increases the level of ROS and induces lipid peroxidation in glioblastoma cells.

Biometals

February 2025

Scientific, Educational and Innovative Center of Chemical and Pharmaceutical Technologies, Ural Federal University, 620002, Yekaterinburg, Russian Federation.

Here we present the biological properties of the arylbipyridine platinum (II) complex (arylbipy-Pt) and describe the potential mechanism of its antitumor action which differs from that of the well-known cisplatin. Leading to the oxidative stress and lipid peroxidation, the arylbipyridine platinum (II) complex showcases the significant cytotoxicity against the glioblastoma cells as shown by the MTT test. Using the 5-ethyl-2-deoxyuridine we study the proliferative activity of glioblastoma cells to affirm that arylbipyridine platinum (II) complex does not impede cell division or DNA replication.

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Lysozyme coupling protease pretreatment to relieve the humic acid inhibition on excess sludge anaerobic fermentation.

Bioresour Technol

December 2024

State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, Heilongjiang, People's Republic of China.

Article Synopsis
  • * The enzyme treatment boosted extracellular bioavailable content by 34%, leading to an impressive 89.69% increase in SCFA production.
  • * Findings indicated that the hydrolysis process effectively supported fermentation communities, enhancing amino acid and glucose metabolism, and improving key enzyme activities, thereby highlighting new possibilities for carbon recovery.
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Cadmium (Cd) is a highly toxic and carcinogenic pollutant that poses significant risks to living organisms and the environment, as it is absorbed by the plant roots and accumulates in different parts of crop during its production. A promising sustainable strategy to counteract these threats to use calcium oxide nanoparticles (CaO-NPs) as soil supplements in fodder crops. This approach has shown notable morpho-physiological and biochemical improvements under metal toxicity conditions.

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Skeletal muscle atrophy refers to the loss of muscle strength and mass due to decreased protein synthesis or increased protein degradation. Various conditions can cause muscle atrophy, including aging, heart disease, chronic illness, obstructive pulmonary disease, kidney failure, diabetes, AIDS, cancer, sepsis, and steroid use. Various natural materials have been studied for the prevention of muscle atrophy.

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Entanglement witness and nonlocality in confidence of measurement from multipartite quantum state discrimination.

Sci Rep

October 2024

Department of Applied Mathematics and Institute of Natural Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.

We consider multipartite quantum state discrimination and provide a specific relation between the properties of entanglement witness and quantum nonlocality inherent in the confidence of measurement. We first provide the definition of the confidence of measurement as well as its useful properties for various types of multipartite measurement. We show that globally-maximum confidence that cannot be achieved by local operations and classical communication strongly depends on the existence of a certain type of entanglement witness.

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Assessing the combined impacts of microplastics and nickel oxide nanomaterials on soybean growth and nitrogen fixation potential.

J Hazard Mater

December 2024

Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; China Agricultural University Professor Workstation of Tangshan Jinhai New Material Co., Ltd., Tangshan City, Hebei, China; China Agricultural University Shanghe County Baiqiao Town Science and Technology Courtyard, Shanghe County, Jinan, Shandong, China. Electronic address:

Article Synopsis
  • * NiO at a specific concentration enhanced nodule formation and nitrogen uptake, promoting plant growth, while PS-MPx exposure significantly harmed photosynthetic pigments and nitrogen-fixing capabilities.
  • * Co-exposure to both contaminants altered nodule morphology and reduced the diversity of beneficial soil bacteria associated with nitrogen cycling, highlighting potential risks to leguminous crops and their nitrogen-fixing ability.
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To examine the robustness of the designed 5% β limit for high-performance operation in the W7-X stellarator, we undertake nonlinear magnetohydrodynamic (MHD) simulations of pressure-driven instabilities using the m3d-c1 code. Consistent with linear analyses, ideal ballooning instabilities occur as β exceeds 5% in the standard configuration. Nonetheless, the modes saturate nonlinearly at relatively low levels without triggering large-scale crashes, even though confinement degradation worsens as β increases.

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An implementation of stochastic resolution of identity to the CC2 (sRI-CC2) ground state energy followed by triplet excitation energy calculations is presented. A set of stochastic orbitals is introduced to further decouple the expensive 4-index electron repulsion integrals on the basis of RI approximation. A Laplace transformation of the orbital energy difference denominators into numerical summations is adopted to obtain a third-order overall scaling.

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Electrosynthesis of Amino Acids from Biomass and Nitrate at Industrial Current Densities Using Porous PbBi Electrodes.

ACS Appl Mater Interfaces

October 2024

Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science and Research Center for Industries of the Future, Westlake University, Hangzhou 310024, Zhejiang, China.

Article Synopsis
  • Electrosynthesis is being explored as an effective method for producing amino acids, but there are challenges in scaling it for industrial use.
  • A newly designed dual-site PbBi alloy catalyst shows impressive efficiency (59.7% Faradaic) for synthesizing amino acids from keto acids and nitrate at a high current density (570 mA cm).
  • This approach allows the production of over 10 types of α-amino acids in high yields, offering a promising, sustainable route for amino acid synthesis from renewable resources and waste.
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Picometer-Level In Situ Manipulation of Ferroelectric Polarization in Van der Waals layered InSe.

Adv Mater

November 2024

CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing, 100190, China.

Ferroelectric 2D van der Waals (vdW) layered materials are attracting increasing attention due to their potential applications in next-generation nanoelectronics and in-memory computing with polarization-dependent functionalities. Despite the critical role of polarization in governing ferroelectricity behaviors, its origin and relation with local structures in 2D vdW layered materials have not been fully elucidated so far. Here, intralayer sliding of approximately six degrees within each quadruple-layer of the prototype 2D vdW ferroelectrics InSe is directly observed and manipulated using sub-angstrom resolution imaging and in situ biasing in an aberration-corrected scanning transmission electron microscope.

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Bioaerosol contamination was considered as a potential health threat in sludge dewatering systems (SDSs), while emission and risk of airborne antibiotic resistome remain largely unclear. Herein, seasonal investigations of fine particulate matter (PM) were conducted using metagenomics-based methods within and around different SDSs, together with an analysis of sewage sludge. Featured with evident seasonality, antibiotic resistance genes (ARGs) in SDS-PM also possessed greater accumulation, transfer, and pathogen accessibility than those in ambient air PM.

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We here provide a detailed description of the vertebral morphology of the African arboreal viperid snakes of the genus Atheris. Vertebrae of three different species of the genus, i.e.

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Synergistic effects of thermally reduced graphene oxide/zinc oxide composite material on microbial infection for wound healing applications.

Sci Rep

October 2024

Basic Science Department, Faculty of Technology and Education, Helwan University, Saraya El Koba, El Sawah Street, Cairo, 11281, Egypt.

Infections originating from pathogenic microorganisms can significantly impede the natural wound-healing process. To address this obstacle, innovative bio-active nanomaterials have been developed to enhance antibacterial capabilities. This study focuses on the preparation of nanocomposites from thermally reduced graphene oxide and zinc oxide (TRGO/ZnO).

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