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501
The Decomposition Pathways of C₄F₇N/CO₂ Mixtures in the Presence of Organic Insulator Vapors
Published 2025-01-01“…Under high temperature conditions, Polytetrafluoroethylene (PTFE) vapor may have a significant effect on the decomposition path of C4F7N/CO2 mixture, which has far-reaching significance for the study of arc extinction characteristics. The decomposition mechanism of C4F7N/CO2 mixture in PTFE vapor environment was investigated by using density functional theory (DFT) for quantum chemical calculation. …”
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502
A review of the application of CIELAB colour systems for the development of gold and silver nano-enabled colorimetric assays for the detection of chromium
Published 2025-01-01“…Due to their fundamental optical characteristics, well-spaced colloidal solutions of gold nanoparticles and silver nanoparticles exhibit higher extinction coefficients and a distinct colour in the visible portion of the spectrum than aggregated samples. …”
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503
Changes in the composition of grass and shrub layer plants in common oak stands since the closure of leaf canopy
Published 2024-10-01“…Nowadays, there are threats of extinction of plant communities and individual plant species. …”
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504
Aerosol Measurements over India: Comparison of MAX-DOAS Measurements with Ground-based (AERONET) and Satellite-based (MODIS) Data
Published 2023-11-01“…The vertical profiles of aerosol extinction coefficients (AEC) show that aerosols were concentrated within the boundary layer (below 2 km) in Pune and Delhi, with the highest AEC values observed up to 500 meters. …”
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505
How low-abundance amphibians shape functional diversity across tropical forest succession stages?
Published 2025-02-01“…Our study revealed the intricate relationship between species richness and facets of functional diversity under scenarios of local extinction and anthropogenic land cover transitions in tropical ecosystems.…”
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506
Advances in fear memory erasure and its neural mechanisms
Published 2025-01-01“…Therefore, erasing pathological fear memories in vivo is a crucial topic in neuroscience for understanding the nature of memories and treating clinically relevant diseases.Main textThis article reviews recent studies on fear memory erasure, erasure of short- and long-term memory, fear memory erasure and neuroplasticity, the neural circuitry and molecular mechanisms of fear memory erasure, and the roles of engram cells and perineuronal nets in memory erasure.ConclusionResearch on the mechanism of memory erasure is limited, and a plausible explanation for the essential difference between memory erasure and memory extinction still needs to be provided. Notably, this review may guide future studies on fear memory and its underlying molecular mechanisms, which may help to develop novel treatment strategies for post-traumatic stress disorder, anxiety, and other mental disorders.…”
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507
High-Transmittance Subwavelength Metal Grating with Relief Structure Composed of Multiple Steps
Published 2014-01-01“…The optical performance of the novel structure is evaluated and compared in terms of the transmission efficiency and extinction ratio over the visible and near-infrared wavelength spectrum. …”
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508
Comparative analysis of floristic richness and diversity in six central forest reserves of north eastern Uganda
Published 2025-01-01“…Abstract As the extinction risk of plants increases globally, there is need to prioritize areas with high floristic richness and diversity to inform the design of evidence-based conservation interventions. …”
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509
Eco-anthropologie et primatologie pour la conservation de la biodiversité : un projet collaboratif dans le Parc National de Moukalaba-Doudou, Gabon
Published 2014-02-01“…In addition to habitat loss resulting from deforestation, an increase in the bushmeat trade threatens some wildlife species with extinction. Among these, African great apes are especially vulnerable because of their long life cycle and low reproduction rates, large range size, and high risk of being infected by diseases of human origin. …”
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510
A Comparative Analysis of Morphological Characteristics between Endangered Local Prickly Pear and the Newly Introduced Dactylopius opuntiae-Resistant Species in Eastern Morocco
Published 2024-01-01“…The objective of the present investigation is to explore the morphological parameters of Opuntia robusta and Opuntia dillenii which are resistant to the white cochineal (Dactylopius opuntiae), as well as the local prickly pear that is currently threatened with extinction. This investigation aims to evaluate the feasibility of replacing the endangered local prickly pear with the recently introduced species O. robusta and O. dillenii. …”
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511
Food Insecurity Resilience Capacity of Rural Households in the Face of Induced-Weather Extremities in Bauchi State of Nigeria
Published 2023-09-01“…Given the dynamic nature of the weather vagaries, if tacit actions are not taken on continuum basis, soonest, human race will go into extinction because of the steep devastating push effect of climate change. …”
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512
Enhanced brightness and photostability of dye-sensitized Nd-doped rare earth nanocomposite for in vivo NIR-IIb vascular and orthotopic tumor imaging
Published 2025-02-01“…However, challenges such as low extinction coefficients, narrow excitation spectra, and prone to quenching in aqueous environments limit their effectiveness. …”
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513
How to Coordinate Urban Ecological Networks and Street Green Space Construction? Insights from a Multi-Scale Perspective
Published 2024-12-01“…Rapid socio-economic development and imbalanced ecosystem conservation have heightened the risk of species extinction, reduced urban climate adaptability, and threatened human health and well-being. …”
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514
Enhanced Laser Damage Threshold in Optically Addressable Light Valves via Aluminum Nitride Photoconductors
Published 2025-01-01“…The optimum driving voltage for the AlN‐based OALV is determined to be ≈ 45 Vpp at 100 Hz, achieving a transmittance of 91.3%, an extinction ratio (ER) of more than 100, and a 51:1 image contrast.…”
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515
Structural, electronic, mechanical, optical and magnetic properties of RhNbZ (Z = Li, Si, As) Half-Heusler compounds: a first-principles study
Published 2025-01-01“…Optical parameters such as dielectric function, reflectivity, refractive index, extinction coefficient, absorption coefficient, optical conductivity and electron energy loss were estimated in the photon energy range of 0–40 eV. …”
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516
An updated checklist of spiders (Arachnida, Araneae) of the protected areas of the Kherson region (Ukraine)
Published 2024-05-01“…There is a high probability of extinction of a number of species from the above mentioned protected areas, since all the studied sites were affected by the hostilities.…”
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517
Culex quinquefasciatus: status as a threat to island avifauna and options for genetic control
Published 2021-03-01“…Abstract The avifauna endemic to islands is particularly susceptible to population declines and extinctions resulting from the introduction of non-native pathogens. …”
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518
Prediction of Potential Habitat Distributions and Climate Change Impacts on the Rare Species <i>Woonyoungia septentrionalis</i> (Magnoliaceae) in China Based on MaxEnt
Published 2024-12-01“…Under future climate scenarios, suitable habitats for <i>Woonyoungia septentrionalis</i> are projected to shrink and shift toward higher altitudes and latitudes, increasing the risk of extinction due to the “mountain trap” effect, where migration is constrained by limited habitat at higher elevations. …”
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519
Oxidative Stability at Different Storage Conditions and Adulteration Detection of Prickly Pear Seeds Oil
Published 2020-01-01“…Peroxide index, specific extinction coefficients K232 and K270, free acidity, and fatty acids composition were evaluated during different periods of incubation (6, 12, and 18 months) at various temperatures (4°C, 25°C, 40°C, and uncontrolled room temperature ranging between 4°C and 40°C) with different packaging (protected and unprotected from sunlight, with and without nitrogen gas bubbling). …”
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520
Special Education Combined with Sensory Integration Training for Children with Autism Spectrum Disorder
Published 2019-12-01“…The single special group was given special education intervention, the children should be intervened according to the special education curriculum, including the positive and negative reinforcement, systematic desensitization, extinction, temporary isolation and retribution. We would choose appropriate disgust, warning and other stimuli to minimize the incentives for bad behavior in children with negative reinforcement. …”
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