3,091 results match your criteria: "Institute of Natural Sciences[Affiliation]"

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF
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.
View Article and Find Full Text PDF
Article Synopsis
  • 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.
View Article and Find Full Text PDF

The arylbipyridine platinum (II) complex increases the level of ROS and induces lipid peroxidation in glioblastoma cells.

Biometals

October 2024

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.

View Article and Find Full Text PDF

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.
View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.
View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.
View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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).

View Article and Find Full Text PDF
Article Synopsis
  • Adequate knowledge is crucial for effective inland fisheries management, but many regions, like Uganda's Lake Edward and Lake George, lack reliable monitoring data.
  • The study estimated vital life-history and growth parameters for 16 fish stocks, which serve as important indicators of fish stock health, using various statistical methods and existing literature.
  • Findings revealed concerns over unsustainable fishing practices, with indicators showing that some fish sizes were below optimal levels, hinting at the negative impacts of current management practices.
View Article and Find Full Text PDF

Enhanced phosphate removal from aqueous environments using three-dimensional La-doped carboxylic carbon nanotubes/alginate: Performance and mechanisms.

Int J Biol Macromol

November 2024

Key Laboratory of Mine Low-Carbon Reclamation and Solid Waste Resource Utilization of Ma'anshan, Anhui University of Technology, Ma'anshan, Anhui 243032, China; School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China. Electronic address:

The excessive amounts of phosphorus (P) discharged and usage have caused eutrophication and algal blooms, which seriously jeopardize the environment even the human health. In this study, carbon nanotubes (CNTs) served as carriers to develop a lanthanum-based sodium alginate hydrogel (La-CNT-COOH/SA) aimed at efficiently removing phosphate from wastewater. Characterization results confirmed successful deposition of La(OH) nanoparticles onto CNT-COOH.

View Article and Find Full Text PDF

The genus belongs to the subfamily Naidinae (Naididae); it includes mostly species of small size and is diverse and abundant in surface coarse sediments in streams. The aim of the present study is to initiate an inventory of lineages (=species) of in Switzerland. We used 135 specimens collected at 6 sites in 4 streams of 4 cantons.

View Article and Find Full Text PDF
Article Synopsis
  • * The study highlights a link between increased hydrogen peroxide levels in blood (a marker of disease) and nanoparticle behavior, suggesting a focus on oxidative stress and inflammation in drug delivery.
  • * By integrating machine learning and magnetic fields, the research enhances the control over nanoparticle movement in the cardiovascular system, potentially revolutionizing cancer treatment through personalized and effective therapies.
View Article and Find Full Text PDF

Lanthanide-Dependent Photochemical and Photophysical Properties of Lanthanide-Anthracene Complexes: Experimental and Theoretical Approaches.

JACS Au

September 2024

Key Laboratory of Theoretical and Computational Photochemistry of the Chinese Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.

The structural, photophysical, and photochemical properties of Ln(depma)(hmpa)(NO) (Ln = La, Ce, Nd, Sm, Eu, Tb, Ho, Er, and Yb) complexes were investigated with a multidisciplinary approach involving synthesis, photocycloaddition-based crystal engineering, spectroscopic analytical techniques and quantum chemical ab initio calculations. Depending on the Ln ion the isostructural complexes exhibit quite different behavior upon excitation at 350-400 nm. Some complexes (Ln = La, Ce, Sm, Tb, Yb) emit a broad and strong band near 533 nm arising from paired anthracene moieties, whereas others (Ln = Nd, Eu, Ho, Er) do not.

View Article and Find Full Text PDF

gen. nov. sp. nov. and gen. nov. sp. nov., two novel heterotrophs from brittle star .

Int J Syst Evol Microbiol

September 2024

Laboratory of Marine Environmental Microbiology, Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan.

Two novel Gram-stain-negative, strictly aerobic, halophilic and non-motile bacterial strains, designated NKW23 and NKW57, were isolated from a brittle star collected from a tidal pool in Wakayama, Japan. The results of phylogenetic analysis based on 16S rRNA gene sequences indicated that NKW23 represented a member of the family , with CAU 1123 as its closest relative (94.4% sequence identity).

View Article and Find Full Text PDF

Metal-organic frameworks (MOFs) present diverse building blocks for high-performance materials across industries, yet their crystallization mechanisms remain incompletely understood due to gaps in nucleation and growth knowledge. In this study, MOF structural evolution is probed using in situ liquid phase transmission electron microscopy (TEM) and cryo-TEM, unveiling a blend of classical and nonclassical pathways involving liquid-liquid phase separation, particle attachment-coalescence, and surface layer deposition. Additionally, ultrafast high-temperature sintering (UHS) is employed to dope ultrasmall Cobalt nanoparticles (Co NPs) uniformly within nitrogen-doped hard carbon nanocages confirmed by 3D electron tomography.

View Article and Find Full Text PDF