Results 41 to 50 of about 8,383 (159)
Staghorn ferns are among the most highly valued ornamental plants but several species experience major extinction threats. Here we establish a DNA barcoding reference dataset to support reliable identification of cultivated staghorn ferns to secure species identity of individuals at all life stages that are used in ex situ and in situ conservation of ...
Kaikai Wang +6 more
wiley +1 more source
人类学和法医学研究中都常以骨骼作为获取信息的来源对象,其中性别的鉴定是个体识别的首要步骤,骨骼的性别鉴定以形态学鉴定为好[1],而颅骨和骨盆的形态学性别鉴定是较为可靠的[2]。国内外众多学者对颅骨的形态规律进行过研究和测量,但基于头部CT图像的测量数据记录是缺少的。国际人类学界也表示,人类骨骼形态学指标的测量数据及其推断公式需10-15年更新,进而达到刑事侦查的要求[3]。另外,地域差异 ...
王美棋 +6 more
doaj
This study reports four rare events of spiders preying on vertebrates in the Xishuangbanna Tropical Botanical Garden, Southwest China. The predators included a giant golden orb‐weaver, huntsman spiders, and a wandering spider, while the prey consisted of a small bird, a blind snake, a gecko, and a tiny shrew.
Wanlu Liu +6 more
wiley +1 more source
CEAmRNA、CEA蛋白检测在良恶性胸腹水中鉴别诊断的价值
目的 评价检测CEAmRNA ,CEA蛋白对良恶性胸腹水鉴别诊断的价值。方法 采用RT PCR方法对 37例胸水和 31例腹水CEAmRNA进行检测 ;CEA蛋白用时间分辨免疫荧光分析法测定。结果 恶性胸水组中CEAmRNA ,CEA蛋白阳性率明显高于良性胸水组 (P
陈杰, 张雪华, 张行, 潘锵荣
doaj
Preliminary study on the aggressive behavior and social hierarchy of captive Egretta eulophotes in non-breeding period [PDF]
黄嘴白鹭作为社会性群居动物,攻击行为及社会等级制度的建立对黄嘴白鹭更好的群居生活有重要的作用。本实验在厦门大屿岛白鹭自然保护区进行,主要对笼养黄嘴白鹭的攻击行为(包括威胁行为、仪式化格斗行为、妥协行为和顺从行为)进行系统的描述和初步的研究,并探究其社会等级模式及社会等级制度建立的因素。实验所用样本共11只黄嘴白鹭,包括2013年从漳浦菜屿带回的9只黄嘴白鹭,其中3只雄鸟,6只雌鸟;以及2013年大屿岛白鹭自然保护区人工孵化的2只雌性黄嘴白鹭。这些黄嘴白鹭均在刚能离巢时被带离原来种群 ...
林靖
core
Abstract The current body of multidisciplinary literature on crisis management still has some unresolved problems. This paper focuses on the following four “controversial issues” in dealing with crises: the usefulness of emergency plans; early signal detection; decision‐making amid high uncertainty; and the centralization/decentralization dilemma.
Giliberto Capano, Federico Toth
wiley +1 more source
肾细胞癌作为最常见的肾恶性肿瘤,经常需要与肾良性肿瘤血管平滑肌脂肪瘤(AML)鉴别。对于存在大量脂肪的AML而言,两者之间的鉴别通常比较容易,而对于乏脂肪的AML而言,两者在影像上鉴别比较困难,术前小肾癌和肾良性肿瘤的误诊率为1.7%-22.0%[1],可见肾脏小肿瘤的术前定性诊断对临床治疗工作具有重要的意义。目前基于定量化参数分析并与病理结果对比 ...
程劲松, 韩津梁
doaj
Advances of Loop-Mediated Isothermal Amplification [PDF]
环介导等温扩增(lOOP-MEdIATEd ISOTHErMAl AMPlIfICATIOn,lAMP)是一种新式核酸扩增技术,它依靠一种具有链置换活性的dnA聚合酶和2对特殊设计的引物,不需要反复的温度循环和昂贵的仪器设备,在等温条件下即可高效快速地完成扩增反应,目前已广泛应用于细菌、病毒、寄生虫等病原体的检测,及动物胚胎性别的鉴定。该文总结了lAMP技术的基本原理、相对于传统核酸检测技术的优点、产物的检测方法及其临床应用,最后指出lAMP目前存在的不足以及采取的相应措施,并对其发展前景进行了展望 ...
郁昂, 黄火清
core
Applications of Laparoscopic Techniques in Wildlife 腹腔镜技术在野生动物中的应用
In wildlife conservation, we have compiled the applications of laparoscopy, summarized into four areas. First, laparoscopy provides a reliable protocol for sex identification in wild species lacking apparent sexual dimorphism. Second, reproductive management with the involvement of laparoscopy is instrumental in maintaining and restoring species ...
Jiachen Li +4 more
wiley +1 more source
Background – Sporotrichosis is a chronic, mycotic infection caused by fungi of the genus Sporothrix. Zoonotic sporotrichosis occurs mainly through S. brasiliensis transmission, resulting from the organism's traumatic introduction via scratches or bites, or contact with exudate from contaminated cats.
Steffanie Amadei +6 more
wiley +1 more source

