Results 131 to 140 of about 4,189 (293)

Effects of short-term exposure of simulated acid rain on the growth of Acacia nilotica

open access: yes, 2007
The response and measurable effects of simulated acid rain at different pH levels of 3.5, 4.5, 5.5, 6.5 and 7.0 on Acacia nilotica seedlings grown on black and red soils were investigated for six months. A set of 10 potted seedlings in each treatment was
Husna Zayadi
core  

Extreme Silk Toughness in Caerostris Spiders Is Limited to Adult Females

open access: yesIntegrative Zoology, EarlyView.
We ask whether species with exceptionally tough silk, like Caerostris bark spiders, show different developmental patterns in silk toughness between ontogenetic stages and sexes. We found that only large females produce exceptionally tough silk with higher initial stiffness, while juvenile females as well as adult and juvenile males produce inferior ...
Matjaž Gregorič   +4 more
wiley   +1 more source

Gut Microbiota of Gray Snub‐Nosed Monkeys: Adaptation to Seasonal Variations Through Energy Compensation and Thermogenesis

open access: yesIntegrative Zoology, EarlyView.
Based on metagenome‐assembled genomes (MAGs), the gut microbiota of the gray snub‐nosed monkeys recovered 1229 non‐redundant MAGs. The gut microbiota showed an enhanced capacity to produce energy substrates with increased conversion activity of these substrates during winter.
Yue Sun   +17 more
wiley   +1 more source

Evolution of elastic modulus in fly ash cement mortar under acid rain exposure

open access: yesDevelopments in the Built Environment
Fly ash (FA) improves mechanical properties and durability of cement-based materials at the later curing stages, but the impact on the elastic modulus (Em) of cement mortar exposed to acid rain remains unclear, making it crucial to investigate this ...
Chang Peng   +4 more
doaj   +1 more source

The effects of simulated acid rain on the growth of \u3ci\u3eLemna minor\u3c/i\u3e

open access: yes, 2017
Acid rain is a growing problem with the continued industrialization of the better part of the world, especially in countries with little to no environmental regulation.
Lee, Isaac
core  

Physiological and Morphological Responses of Amaranthus hybridus L. (Green) to Simulated Nitric and Sulphuric Acid Rain

open access: yes, 2017
Aims: To determine the physiological and morphological responses of Amaranthus hybridus leaf area, shoot height, stem girth, leaf number, petiole length, fresh weight (FW) and dry weight (DW) of leaf, shoot and root, relative growth rate (RGR) and ...
L. Soonen   +3 more
core   +1 more source

Modelling Patterns of Past Inundation Processes Combining Geoarchaeology and Morphometric Hydrological Analysis in the Shashe‐Limpopo Basin, South Africa

open access: yesArchaeometry, EarlyView.
ABSTRACT Riverine and valley systems across the globe have been central to the development of past urban centres. By AD 900, the Shashe and Limpopo Rivers seem to have facilitated the interaction and integration of early farming communities in southern Africa. This paper focuses on the application of geoarchaeological perspectives made available by the
B. S. Nxumalo
wiley   +1 more source

Acid Resistance and Strength Performance of Bamboo Leaf Ash–Bone Ash Concrete under Simulated Acid Rain Conditions

open access: yesJournal of Building Materials and Structures
Concrete infrastructure in oil and gas environments faces rapid degradation due to exposure to acid rain and chemically aggressive discharges. Conventional Ordinary Portland Cement (OPC) concrete is particularly vulnerable in such zones, necessitating ...
Abdullahi Umar Auwal
doaj   +1 more source

Luminescence dating of coastal deposits from the Chanthaburi Plain, Thailand

open access: yesBoreas, EarlyView.
The ongoing global sea‐level rise urges us to better understand the dynamics of coastal processes for predicting future changes. Sedimentary deposits reflect past coastal environments but require precise chronological data to place evidence into a temporal context.
Margarita Nuss   +6 more
wiley   +1 more source

Comparison of a 3D‐printed skin model with established methods for teaching punch biopsy with suturing

open access: yesJDDG: Journal der Deutschen Dermatologischen Gesellschaft, EarlyView.
Summary Background Realistic and accessible models are essential for training physicians in clinical procedures. This study investigated whether a cost‐effective 3D‐printed skin model is superior to fruit and foam models for teaching skin biopsies. Patients and Methods The study (10/2023‐02/2025) involved 148 medical students who compared the 3D skin ...
Sandra Schuh   +5 more
wiley   +1 more source

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