Results 41 to 50 of about 30,612 (170)

松鼠作为生物探测器的可行性研究综述

open access: yes野生动物学报, 2021
生物探测器对气味具备很高的选择性和敏感性,虽然犬(Canis familiaris)一直广泛应用于各个领域,但犬在特殊场合存在局限性,需要开拓生物探测器的选择视角。介绍了犬及现有其他生物探测器的研究现状,并以松鼠(Sciurus vulgaris)作为新型生物探测器需要具备的性能角度,对松鼠的嗅觉敏感性、学习认知能力(如灵活性、持久性、短期记忆能力等)、行为特点、生活习性、社会性和可训练性等方面进行分析评估。结果表明:松鼠在嗅觉敏感性、学习认知能力、行为特点、生活习性等方面的优势明显,松鼠在社会性 ...
孙宁 1 刘慧颖 2 徐澍 1 李彪 1 彭萍 1 胡庭溪 2 尹劲 3 等
doaj  

Study on novel modes of action of antitumor marine natural products [PDF]

open access: yes, 2011
課題番号 ...
木越 英夫, 木越 英夫
core  

Assessing D‐Squame as a Minimally Invasive Technique to Evaluate the Cutaneous Immune Response mRNA in a Dog Model of Canine Atopic Dermatitis

open access: yesVeterinary Dermatology, EarlyView.
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

番茄红素的生物活性及其应用 [PDF]

open access: yes, 2017
2005-2006 > Academic research: refereed > Publication in refereed journalVersion of ...
Du, JR   +4 more
core  

ABCA12 Frameshift Deletion in Domestic Cats With Ichthyosis Fetalis

open access: yesVeterinary Dermatology, EarlyView.
ABSTRACT Background Ichthyosis fetalis (IF), also known as harlequin ichthyosis, is a rare and often fatal autosomal recessive congenital skin disorder. It is characterized by thickened, hard skin plaques and deep skin fissures that limit mobility and cause malformations of the eyes, lips and ears.
Jeanna M. Blake   +2 more
wiley   +1 more source

生草不同条件还田对桃园土壤微生物、酶活性及养分供应的影响

open access: yesShuitu Baochi Xuebao, 2021
为探讨桃园生草不同条件还田对土壤微生物、酶活性及有效态养分的影响,以清耕为对照,设置生草自然还田、生草刈割还田、生草刈割配施有机物料腐熟剂还田3个处理,连续开展3年定位试验。采集根际和非根际土壤,研究桃园生草不同条件还田对土壤微生物数量、土壤酶活性以及土壤不同形态氮、钾含量的影响。结果表明:生草不同条件还田提高了根际土壤微生物的数量,生草刈割配施有机物料腐熟剂还田显著提高了根际和非根际土壤细菌和真菌的数量,较其他处理分别提高21.2%~48.2%和11.7%~17.0%,生草刈割后 ...
郭新送   +7 more
doaj  

Recent Advances in Piezocatalysis and Piezo‐Photocatalysis in Energy and Environment: Materials, Design, and Applications

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou   +5 more
wiley   +1 more source

苹果园土壤微生物生态特征研究

open access: yesShuitu Baochi Xuebao, 2008
2003—2004年开展对9个有代表性的不同产量的苹果园秋季土壤的养分、微生物类群及土壤酶活性的研究,获得不同产量苹果园的土壤微生物生态状况。结果表明,各苹果园的土壤养分、微生物数量、多样性和酶活性均表现出较大差异。随土壤碱解氮、速效磷、速效钾、总碳含量的增加,产量水平呈增高趋势。高产园土壤微生物数量高,多数土壤酶活性强,微生物多样性好。土壤微生物中细菌数量、微生物多样性、蛋白酶、磷酸酶活性可作为评价果园土壤肥力的生物指标。果树产量与土壤微生物类群和数量具有显著正相关,与速效磷、速效钾 ...
陈伟, 姜中武, 胡艳丽, 束怀瑞
doaj  

Developing HMME‐Conjugated NIR‐II Activated Carbon Dots Nanospray for the Treatment of MRSA Biofilm Infections in Diabetic Wound via PTT/CDT/SDT

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou   +8 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

open access: yesShuitu 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  

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