Results 21 to 30 of about 1,919,642 (157)
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The poor soft tissue integration around titanium implants creates a microgap that serves as a pathway for pathogen invasion, resulting in infection, inflammation, and the progression of peri‐implantitis. As the implant’s transmucosal component, the abutment determines the degree of peri‐implant soft tissue attachment.
Xuan Li +7 more
wiley +1 more source
封育和水平沟生态恢复措施对宁夏黄土丘陵区典型草原土壤生物学特性的影响
Shuitu Baochi Xuebao, 2017 研究禁牧封育和水平沟生态恢复措施下黄土丘陵区典型草原土壤生物学特性变化，以期为该区草地生态建设提供依据。采用空间梯度代替时间梯度的方法，在宁夏黄土丘陵区典型草原，选取未封育（放牧）、封育3～15 a、水平沟整地后1～15 a的土壤，分析0—10，10—20，20—30，30—40 cm土壤微生物数量、微生物生物量碳、量氮和土壤酶活性的变化特征及其相关性。结果表明：（1）试验区土壤微生物类群以放线菌为主，达到86.18%～4.43%，数量表现为放线菌>细菌>真菌；土壤微生物总数、细菌和放线菌数 ...
周, 贾希洋, 周静静
doaj
Veterinary Dermatology, Volume 37, Issue 3, Page 353-364, June 2026.ABSTRACT Background Canine atopic dermatitis (cAD) is a multifactorial, inherited skin disease, estimated to affect ≤ 15% of dogs. Studies of skin messenger mRNA in cAD currently use invasive methods, including blood sampling and biopsy collection, whilst advances in human atopic dermatitis study methodology have demonstrated reliable use of minimally ...
Xavier Langon +5 more
wiley +1 more source
Gongye shui chuli, 2015 活性污泥是污水处理系统中脱氮、除磷以及有机污染物质转化的主体,其生物活性的高低从根本上决定了污水处理系统的处理能力。认识活性污泥系统中微生物菌群的结构和功能特性对于污水处理工艺性能的改良和优化有现实指导意义。综述了活性污泥系统中原核细胞型微生物和原生动物的群落结构,以及两者各自的功能特性,包括原核细胞型微生物对氮、磷和其他特定污染物的去除作用,原生动物的指示作用。
张姿, 汤兵
doaj
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Environmental pollution across water, air, and soil systems poses escalating threats to human health and ecosystem stability, driven by heavy metals, persistent organic pollutants, particulate matter (PM), bioaerosols, and toxic gases. Conventional remediation technologies often suffer from limited selectivity, insufficient efficiency, and the
Junjie Qi +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 在连续6年稻麦轮作系统中，研究不同秸秆施用方式下接种蚯蚓对土壤微生物生物量、活性（基础呼吸）及群落功能多样性（BIOLOG单一碳源利用指纹方法）的影响，试验设5个处理：对照（CK）、秸秆表施（M）、秸秆混施（I）、秸秆表施且接种蚯蚓（ME）、秸秆混施且接种蚯蚓（IE）。不同秸秆施用下接种蚯蚓均对土壤微生物生物量、微生物生物活性和群落碳源利用能力产生显著影响：两种秸秆施用方式下接种蚯蚓均增加微生物生物量；秸秆表施并接种蚯蚓导致微生物活性、碳源利用丰富度和多样性指数均降低，而在秸秆混施下则均升高 ...
于建光 +6 more
doaj +2 more sources
Shuitu Baochi Xuebao, 2021 土壤酶对森林生态系统生物化学过程有重要作用，能快速反映土壤环境（如养分含量和有效性）的变化。采伐剩余物是林地土壤养分的重要来源，其处理方式会对森林土壤的养分含量和有效性产生影响。为探讨采伐剩余物不同处理方式对杉木幼林土壤酶活性的影响，在福建省三明市格氏栲自然保护区40年生的杉木成熟林采伐迹地上对采伐剩余物进行不同处理（保留RR、火烧RB、去除R）并种植杉木幼林，通过采集0-10，10-20 cm土层土壤，对6种胞外酶活性进行研究。结果表明：（1）采伐剩余物处理4年后，相比保留处理 ...
李啸灵 +4 more
doaj
Functional Ecology, Volume 40, Issue 5, Page 1415-1427, May 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Wildfires are disrupting and regenerating forces in nature that affect all ecosystem components. However, the impact of wildfires on soil multitrophic biodiversity and the resulting consequences for ecosystem multifunctionality (EMF) remain poorly understood.
Juan Zhou +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 土壤微生物数量、土壤酶活性可以反映土壤的肥力状况。本文研究了东营泥质海岸不同林分下土壤养分、微生物数量、土壤酶活性及分布特征,结果表明：①土壤微生物、土壤酶和土壤养分主要分布在0-20 cm的土层,20-50 cm的较少;②不同林分微生物数量差异显著。白蜡林微生物数量最多,柳林、枣园数量较少,柽柳林数量最少。③不同林分土壤酶的活性表现出差异性,各种酶之间过氧化氢酶活性最高;④土壤养分含量差异显著,柳林土壤养分含量相对较高于其它样地,白蜡和桑园土壤养分含量次之 ...
李春艳 +5 more
doaj
Biodegradable Mg Alloys: Enhancing Anti‐tumor Immunity in Cancer Therapy
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Magnesium (Mg) alloys, as biodegradable metallic materials with excellent biocompatibility and mechanical properties, demonstrate significant advantages. In the field of immunotherapy, they present a promising potential option for enhancing therapeutic outcomes and hold broad prospects for application.
Can Feng +8 more
wiley +1 more source