Results 91 to 100 of about 762,487 (301)

Composition Characteristics and Potential Regions of PM2.5 during Winter Haze Pollution in Typical Industrial Areas, NW-China

open access: yesAerosol and Air Quality Research
To investigative the causes and potential sources of fine particulate matter (PM2.5) pollution during winter haze pollution in typical industrial areas in northwest China, PM2.5 samples were collected during a winter extreme pollution event (from January
Liyao Guo   +7 more
doaj   +1 more source

Complete mitochondrial genomes and phylogenetic analysis of native and non-native fishes in a national key wetland of China

open access: yesFrontiers in Environmental Science
Fish are considered objective indicators of environmental health and ecosystem stability. Establishing regional reference databases of mitochondrial genome sequences from local fish communities can significantly enhance fish monitoring using ...
Rui-Qing Zhang   +12 more
doaj   +1 more source

Neglect of Temperature and pH Impact Leads to Underestimation of Seasonal Ecological Risk of Ammonia in Chinese Surface Freshwaters

open access: yesJournal of Chemistry, 2019
Ammonia nitrogen (AN) is evaluated with fixed water quality standards (WQSs) in aquatic environment management in China. Since the toxicity of AN can be influenced by water parameters, the current evaluation is not rigorous and may result in problematic ...
Zhen-Guang Yan   +7 more
doaj   +1 more source

Flood damage, vulnerability and risk perception - challenges for flood damage research [PDF]

open access: yes
The current state-of-the-art in flood damage analysis mainly focuses on the economic evaluation of tangible flood effects. It is contended in this discussion paper that important economic, social and ecological aspects of flood-related vulnerabilities ...
Messner, Frank, Meyer, Volker
core  

Multi‐Enzyme Mimetic Molybdenum Nitride Nanozymes Reshape Subgingival Microenvironment for Synergistic Periodontitis Therapy via ROS Regulation and Microbiome Remodeling

open access: yesAdvanced Science, EarlyView.
ABSTRACT Periodontitis, a chronic inflammatory disease initiated and sustained by plaque microorganisms and host immune response, remains an intractable oral disease and a leading cause of tooth loss worldwide. Traditional mechanical debridement and adjunctive antibiotic or antiseptic therapy often shows limited efficacy due to the complex anatomical ...
Weiyu Zhang   +12 more
wiley   +1 more source

Comparative Study on the Characteristics of Bacterial and Microeukaryotic Communities in Aquaponics and Recirculating Aquaculture Systems [PDF]

open access: yesProgress in Fishery Sciences
The aquaponics system, an integrated ecological agriculture model, effectively combines aquaculture and the cultivation of aquatic plants. This system not only utilizes the nutrients in aquaculture water to promote plant growth but also purifies water ...
FAN Dingyue   +9 more
doaj   +1 more source

Ecological risk assessment of endocrine disruptors.

open access: yesEnvironmental Health Perspectives, 2000
The European Centre for Ecotoxicology and Toxicology of Chemicals proposes a tiered approach for the ecological risk assessment of endocrine disruptors, integrating exposure and hazard (effects) characterization. Exposure assessment for endocrine disruptors should direct specific tests for wildlife species, placing hazard data into a risk assessment ...
T H, Hutchinson   +8 more
openaire   +2 more sources

Gut Lactate Boosts Ruminococcus via Histone Lactylation to Mediate Time‐Restricted Feeding Protection in Crohn's Disease

open access: yesAdvanced Science, EarlyView.
TRF enriches Ruminococcus, a bacterial genus producing SCFAs, and activates the epithelial HIF‐1α signaling pathway. This mechanism protects the colonic mucosa from inflammatory insults in colitis models. Mechanistically, gut lactate production during starvation and refeeding mediates H4K12la, which increases SLC9A3 expression and creates an acidic gut
Linwen Huang   +17 more
wiley   +1 more source

Redressing the Silent Interim: Precautionary Action & Short Term Tests in Toxicological Risk Assessment [PDF]

open access: yes, 2001
The author recommends that a stronger emphasis be placed on creating and implementing short-term tests that use iterative, conservative-based, tiered procedures in conjunction with a precautionary attitude during the interim phase of toxicological risk ...
Riley, Timothy
core   +1 more source

Diversity of Pharmaceuticals Enhances Antibiotic Resistance in the Invertebrate Gut via Biofilm‐Mediated Mechanisms

open access: yesAdvanced Science, EarlyView.
Pharmaceutical diversity acts as an independent driver of antibiotic resistance in soil invertebrates. While bulk soil remains unaffected, the collembolan gut microbiome exhibits significant resistance gene enrichment under complex chemical exposure and diurnal warming.
Yi‐Fei Wang   +11 more
wiley   +1 more source

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