Results 71 to 80 of about 27,903 (194)
[Research progress on biocomposites based on bioactive glass]. [PDF]
Peng Y, Lan L, Mu J, Hou S, Cheng L.
europepmc +1 more source
Success of restoration strategies in preventing extirpation of 2 critically endangered coral species
Abstract An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral (Acropora palmata) and staghorn coral (Acropora cervicornis), were severely affected.
Erinn M. Muller +29 more
wiley +1 more source
采用定点取样的方法,研究了不同种植年限设施土壤微生物主要类群、生物量碳和5种酶活性的变化特点,结果表明:(1)不同种植年限设施土壤微生物主要类群随季节变化不一致,细菌数量先升后降,高峰出现在6月,10月最低;真菌和放线菌数量均在3月最多,而后逐渐减少。随设施种植年限的延长,微生物总数逐渐增加,但真菌和放线菌占微生物总数的比例却呈下降趋势。与露地相比,设施栽培中真菌增加快于细菌。(2)不同种植年限设施土壤微生物生物量碳在3月和6月含量最高,随设施种植年限的延长,微生物生物量碳含量也增加。(3 ...
王珊, 李廷轩, 张锡洲, 周建新
doaj +2 more sources
Optimization for the preparation process of silver nanoparticles and their biological activity. [PDF]
Zou J, Luo W, Wang S, Wang Y.
europepmc +1 more source
独脚金内酯是独脚金醇类化合物的总称,是一种倍半萜内酯,来源自类胡萝卜素生物合成途径。近年来研 究发现,独脚金内酯不仅具有刺激种子发芽,还具有诱导丛枝菌根真菌分支和抑制植物分枝等多重生物学功能。独脚金内酯的多重角色在植物自身发育与周围环境的协调过程中发挥着重要作用。为了深入了解独脚金内酯,笔者归纳了其所具有的多重“角色”:种子萌发刺激物,共生信号物质及新型植物激素,并进一步探讨了各种功能与其结构的内在关系 ...
任承钢 孔存翠 王计平 李润植 解志红 +1 more
core
Threats to and management of Natura 2000 protected areas relative to agricultural practices
Abstract The Natura 2000 (N2K) network combines biodiversity protection and socioeconomic targets. Human activities, such as agricultural practices, can affect biodiversity in N2K sites in diverse ways. Limiting activities with negative impacts while enforcing land management that supports biodiversity is crucial for effective conservation.
Giorgio Zavattoni +7 more
wiley +1 more source
通过盆栽试验,研究化肥减量10%~30%条件下,配施与所减化肥相同用量的2种生物有机肥对油菜生理代谢、产量、土壤生物学特性和养分含量的影响,系统的阐述了生物有机肥应用于蔬菜生产的优势所在。结果表明:减量化肥配施生物有机肥可促进油菜生长,提高油菜叶片内叶绿素含量和根系活力,同时增强了油菜叶片和根系内抗氧化酶(SOD、POD、CAT)活性,降低了过氧化物质含量(MDA、O2?
宋以玲 +6 more
doaj
[Research progress on bioactive strategies for promoting tendon graft healing after anterior cruciate ligament reconstruction]. [PDF]
Cai W, Li J, Li Q.
europepmc +1 more source
Efficient Synthesis of Optically Active b-Substituted Pyroglutamic Acid and Its Application toward the Synthesis of Biologically Active Molecules [PDF]
博士(理学 ...
山田, 健
core
When and why to give shorebirds a head start
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson +4 more
wiley +1 more source

