Results 21 to 30 of about 10,386 (113)

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás   +4 more
wiley   +1 more source

高频超声对乳腺肿瘤内部微钙化灶的敏感度和特异度的研究

open access: yesZhongguo shiyan zhenduanxue, 2009
目的通过高频超声显像对乳腺肿瘤中微钙化灶的敏感度和特异度进行研究,探讨高频超声显像检出乳腺肿瘤内部微钙化灶对乳腺癌的诊断价值。方法对130例乳腺肿瘤患者进行高频超声检查,观察肿瘤大小、形态、边界、回声,并重点进行钙化灶的形态特点研究;所有乳腺肿瘤均经病理证实。结果在130例乳腺肿瘤中,病理证实恶性肿瘤(乳腺癌)102例,良性肿瘤28例;98例乳腺癌中出现微钙化灶,4例乳腺癌未出现微钙化灶;5例良性肿瘤中出现微钙化灶,23例良性肿瘤未出现微钙化灶;乳腺恶性肿瘤中微钙化灶检测的敏感度为96.1 ...
赵峰, 邢虎, 张歆, 陈加俊
doaj  

D-最优混料设计优化速冻专用油脂乳化剂配方Optimization of emulsifier formula of fast-frozen special fat by D-optimum mixture design

open access: yesZhongguo youzhi, 2023
为解决速冻食品易开裂的问题,对速冻专用油脂乳化剂配方进行设计优化。首先以自制酯交换油脂为基料油,以吸水性和乳化稳定性为指标,对6种常用的亲油性乳化剂进行筛选,并采用D-最优混料设计确定最佳乳化剂配方,然后用该乳化剂配方制备速冻专用油脂,并将自制速冻专用油脂和两种市售速冻专用油脂制作速冻汤圆作应用对比试验。结果表明:以酯交换油脂为基料油的速冻专用油脂最佳乳化剂配方为硬脂酰乳酸钙添加量34.4%、单硬脂酸甘油酯添加量338%、大豆卵磷脂添加量31.8%,在此条件下复合乳化剂的吸水性为25.1 mL/10 ...
朱利萍1,孙聪1,2,李开放2,张顺昌2,梁少华1,杨国龙1,刘伟1 ZHU Liping1, SUN Cong1,2, LI Kaifang2, ZHANG Shunchang2, LIANG Shaohua1, YANG Guolong1, LIU Wei1
doaj   +1 more source

Gadolinium‐Induced Activation of CoNiO2 for Efficient Oxygen Evolution: A Structural and Electronic Modulation Approach

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Multicomponent transition metal oxides (TMOs) incorporating rare‐earth (RE) elements have emerged as promising materials for the oxygen evolution reaction (OER). However, knowledge of how to regulate the structure of TMO‐based nanomaterials through RE incorporation to enhance catalytic performance remains limited.
Bolin Zhao   +6 more
wiley   +1 more source

Aspect Ratio‐Controlled Chiral Nanostructures for Dual‐Mode Breast Cancer Theranostics

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Chiral CdSe/CdS quantum dots (QDs) have emerged as promising platforms for precise cancer diagnosis and therapy due to their unique optical properties and biological interactions. In this study, we systematically investigated the role of aspect ratio (AR) modulation in ultrathin‐shelled chiral CdSe/CdS dot‐in‐rods (DRs) on their performance in
Linxuan Wu   +9 more
wiley   +1 more source

Effect of Different Active Peptides on Emulsifying Properties of Sodium Caseinate and Proportion Optimization(不同活性短肽对酪朊酸钠乳化特性的影响及其配比优化) [PDF]

open access: yesShipin kexue jishu xuebao, 2015
Effects of different active peptides on the emulsifying properties of sodium caseinate,and the proportion of complex were optimized in this study.
MA Yongxuan(马永轩)   +9 more
doaj   +1 more source

Impacts of Human Development on Wildlife Use of Corridors in Botswana 人类开发对博茨瓦纳野生动物廊道利用的影响

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 164-171, March 2026.
This study examined the effect of landscape‐scale human impact on wildlife in Botswana. We examined how species use wildlife corridors in two different human‐dominated landscapes. We identified differences in temporal overlap between wildlife and humans across both landscapes, which is fundamental to consider in both current and future conservation ...
Tempe S. F. Adams   +3 more
wiley   +1 more source

多发钙化的钼靶X线特征及其与乳腺良恶性疾病的分析

open access: yesZhongguo shiyan zhenduanxue, 2014
目的探讨乳腺多发钙化的X线特征以其对鉴别良、恶性病变的临床价值。方法选择120例乳腺病变患者为研究对象,均接受乳腺X线钼靶检测,观察良恶性病变多发钙化大小、合并肿块、单双侧、钙化密度、分布状态等特征。分析钙化Le Gal分型与乳腺良恶性病变关系。结果乳腺恶性病变泥沙、短棒以及针尖状钙化的比例显著高于乳腺良性病变,乳腺良性病变圆点、小片及蛋壳状钙化的比例显著高于乳腺恶性病变,差异具有统计学意义 ...
解海青
doaj  

Hybrid Probiotic Hydrogel With Curcumin‐Loaded MnO2 Nanoparticles Enhances Diabetic Wound Healing Through Multimodal Microenvironmental Regulation

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Skin wound injuries are often accompanied by bacterial infections and severe inflammation. Especially, M1‐type macrophages at the wound site can trigger a cascade of inflammatory responses, mediating a vicious cycle of inflammation. Meanwhile, hypoxia further exacerbates vascular damage and constriction in the wound microenvironment, thereby ...
Xianfeng Wang   +6 more
wiley   +1 more source

Advances in Elemene Nanodelivery Systems: From Material Design to Disease Treatment

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Elemene (ELE) is a bioactive sesquiterpenoid extracted from traditional Chinese herbs, demonstrating broad‐spectrum antitumor, anti‐inflammatory, and analgesic properties with significant therapeutic potential. However, its clinical utility is constrained by inherent physicochemical limitations, including volatility and hydrophobicity, which ...
Xiao Wang   +9 more
wiley   +1 more source

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