Results 31 to 40 of about 26,223 (169)
Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
The research on structure and bioactivities of condensed tannins from Ficus altissima leaves [PDF]
, 2016 高山榕（FicusaltissimaBlume）是一种广泛栽培的绿化植物，目前主要用作行道树，园景树和庭荫树，对于其其它方面的开发和利用较少，未使其价值得到充分的体现。本研究通过总酚和可溶性单宁的测定发现两者在高山榕叶片中都具有较为丰富的含量，分别达118.4±3.3mgGAE/gDW和39.61±1.02mg/gDW。单宁结构复杂多样，具有特殊丰富的生物活性，目前已广泛应用于医药、食品、农业、生态等多个方面，逐渐成为植物化学、药理学和食品化学等交叉学科的研究热点 ...
梁戈
core
Conservation Biology, EarlyView.Abstract Consumer demand for ivory perpetuates the unsustainable and illegal killing of African elephants and other wildlife species. Interventions that aim to change consumer behavior are increasingly recognized as a crucial element of demand management. However, poor design and implementation have limited their effectiveness.
Molly R. C. Brown +2 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2014 直结肠癌是世界第二大癌症,致死率也位居第二位。临床分期往往决定了直结肠癌患者的预后,早期阶段确诊的患者往往预后良好[1]。电子顺磁共振谱仪（EPR）可以测定血浆蛋白的功能特性,以HSA为例,采用具有稳定自由基结构（如氮氧自由基,doxyl）的长链脂肪酸作为人工引入的自由基,然后与血清白蛋白结合 ...
刘忠超 +4 more
doaj
Effect of multi-devascularization combined with Curcumin perfusion in the treatment of hepatic VX2 carcinoma in rabbit and on the residual carcinoma angiogenesis [PDF]
, 2015 目的：研究姜黄素和肝脏周围防粘连隔离膜包裹对经肝动脉、门静脉栓塞治疗VX2肝癌兔的肝功能和生存期的影响；碘化油栓塞肿瘤血管后的残癌组织内血管新生旺盛，本实验探讨姜黄素和肝周防粘连隔离膜包裹对栓塞后残癌组织血管新生的影响。 方法：40只新西兰大白兔随机分成4组，开腹接种法建立VX2肝癌模型。两周后开腹行肝动脉、门静脉置管术，其中B组、D组手术置管同时行肝周防粘连隔离膜包裹隔离术。手术一周后通过留置化疗泵给药，A组、B组：单纯碘化油栓塞剂，C组、D组：姜黄素和栓塞剂混合乳剂。即A组：肝动脉、门静脉置管 ...
徐政
core
Conservation Biology, EarlyView.Abstract Recognition and engagement of Indigenous Peoples and local communities (IP&LCs) and other traditional knowledge (TK) holders in formal biodiversity governance remain limited, despite their significant contribution to the conservation and sustainable use of biodiversity through their knowledge, innovations, practices, and land stewardship.
Kinga Öllerer +8 more
wiley +1 more source
Zhongguo youzhi为进一步提高玉米肽的抗氧化活性，以玉米醇溶蛋白源活性肽为原料，利用谷氨酰胺转氨酶（TGase）催化壳寡糖（分子质量1 500 Da）与玉米肽共价结合制备玉米糖肽，研究壳寡糖的糖基化修饰对玉米肽抗氧化活性的影响，并对玉米糖肽进行体外模拟胃肠消化，表征玉米糖肽在体内发挥抗氧化活性的潜力。结果表明：TGase催化的壳寡糖共价结合使玉米肽的肽含量和体外消化率显著提高；在质量浓度为2.0 mg/mL时，TGase催化壳寡糖糖基化修饰使玉米肽的DPPH自由基、羟自由基、超氧阴离子自由基清除率，Fe2 ...
童玲，王晓杰 TONG Ling， WANG Xiaojie
doaj +1 more source
Study on the low shrinkage rate UV adhesiveof dual curing mechanism [PDF]
, 2015 紫外光固化胶黏剂是一种新兴的胶黏剂产品，因其具有高效、环保、经济 等特点，被广泛应用于多种工业领域。但目前国内对紫外光固化胶黏剂研究较 少，所研制的紫外光固化胶黏剂主要为自由基固化型，固化收缩率大多在5%以 上，而用于触摸屏、大屏幕彩电、智能手机屏幕等行业的紫外光胶黏剂要求固 化收缩率≤3%。本文研究内容旨在利用双重固化机理降低紫外光固化胶黏剂的 固化收缩率，制备固化收缩率小于3%的紫外光固化胶黏剂。 本文利用端羟基聚丁二烯、过氧化氢和乙酸为原料，成功制备了兼具不饱 和双键和环氧基的环氧聚丁二烯 ...
陆嘉
core
Drivers of bat researchers’ intent to adopt field hygiene practices
Conservation Biology, EarlyView.Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman +6 more
wiley +1 more source
, 2012 在阶段性降温条件下,研究了三种常用湿地植物黄鸢尾(Iris pseudacorus L.)、花菖蒲(Iris ensata Thunb.)及水芹(Oenabthe javanica)叶片抗寒性相关生理指标(可溶性蛋白质含量、可溶性糖含量、游离脯氨酸含量、丙二醛含量、超氧化物歧化酶活性、过氧化物酶活性、过氧化氢酶活性以及细胞质膜相对透性)的变化。结果表明,冷锻炼使湿地植物通过对抗氧化酶活性及渗透性的调节来提高其机体的抗寒性。低温条件下,黄鸢尾的抗氧化酶活性显著增加,5℃时SOD活性是初始值的5.77倍 ...
吴振斌 +6 more
core