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Development of Biopsy Tract Sealants Based on Shape Memory Polymer Foams. 开发基于形状记忆聚合物泡沫的活检通道密封剂
3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-09-01 Epub Date: 2023-02-08 DOI: 10.1007/s44174-023-00064-1
Tyler J Touchet, Braeden Brinson, McKenzie Jones, Achu Byju, Grace Fletcher, Sayyeda Marziya Hasan, Landon D Nash, Duncan J Maitland

Lung biopsies are often used to aid in the diagnosis of cancers. However, the procedure carries the dual risk of air (pneumothorax) or blood (hemothorax) filling the pleural cavity, increasing the risk of a collapsed lung and chest intubation. This work demonstrates the effectiveness of a polyurethane-based shape memory polymer foam as a biopsy tract sealant. The impact of diameter, length, pore size, and shape memory effect was evaluated to determine the ideal device design for tract sealing. Characterization in an in vitro benchtop lung model identified that diameter had the largest influence on sealing efficacy, while the length of the device had little to no impact. Finally, evaluation of deployment force demonstrated that devices fabricated from the shape memory polymer foams were easier to deploy than elastic foams. Following characterization, down-selected device designs were combined with radiopaque markers for use in image-guided based procedures. Furthermore, the introduction of the markers or sterilization did not impact the ability of the devices to seal the biopsy tract and led to a decrease in the deployment force. Overall, these results demonstrate the potential for polyurethane-based shape memory foam devices to serve as biopsy tract sealant devices that aim to reduce complications, such as pneumothorax, from occurring.

肺活检通常用于帮助诊断癌症。然而,该手术具有空气(气胸)或血液(血胸)充满胸膜腔的双重风险,增加了肺部塌陷和胸部插管的风险。这项研究证明了聚氨酯形状记忆聚合物泡沫作为活检道密封剂的有效性。评估了直径、长度、孔径和形状记忆效应的影响,以确定理想的活检道密封装置设计。在体外台式肺部模型中进行的特性分析表明,直径对密封效果的影响最大,而装置的长度几乎没有影响。最后,对展开力的评估表明,用形状记忆聚合物泡沫制造的装置比弹性泡沫更容易展开。表征完成后,经过筛选的装置设计与不透射线标记相结合,可用于基于图像引导的手术。此外,标记物的引入或消毒不会影响装置密封活检道的能力,也不会导致展开力下降。总之,这些结果证明了聚氨酯形状记忆泡沫装置作为活检道密封装置的潜力,其目的是减少气胸等并发症的发生。
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引用次数: 0
LAQ volume 34 issue 3 Cover and Front matter LAQ第34卷第3期封面和封面事项
3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-09-01 DOI: 10.1017/laq.2023.54
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Waves of Influence: Pacific Maritime Networks Connecting Mexico, Central America, and Northwestern South America. Christopher S. Beekman and Colin McEwan, editors. 2022. Dumbarton Oaks Research Library and Collection, Washington, DC. 604 pp. 117 color illust., 35 halftones, 40 line illust., 30 maps, 58 tables. $85.00 (hardcover), ISBN 9780884024897. 影响的波浪:太平洋海上网络连接墨西哥,中美洲和南美洲西北部。克里斯托弗·s·比克曼和科林·麦克尤恩,编辑。2022. 敦巴顿橡树研究图书馆和收藏,华盛顿特区。604页,117彩色插图。, 35个半色调,40个线条。、30张地图、58张表格。$85.00(精装),ISBN 9780884024897。
3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-09-01 DOI: 10.1017/laq.2023.43
Gabriel Prieto
Waves of Influence: Pacific Maritime Networks Connecting Mexico, Central America, and Northwestern South America. Christopher S. Beekman and Colin McEwan, editors. 2022. Dumbarton Oaks Research Library and Collection, Washington, DC. 604 pp. 117 color illust., 35 halftones, 40 line illust., 30 maps, 58 tables. $85.00 (hardcover), ISBN 9780884024897.
影响的波浪:太平洋海上网络连接墨西哥,中美洲和南美洲西北部。克里斯托弗·s·比克曼和科林·麦克尤恩,编辑。2022. 敦巴顿橡树研究图书馆和收藏,华盛顿特区。604页,117彩色插图。, 35个半色调,40个线条。、30张地图、58张表格。$85.00(精装),ISBN 9780884024897。
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引用次数: 0
LAQ volume 34 issue 3 Cover and Back matter LAQ第34卷第3期封面和封底
3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-09-01 DOI: 10.1017/laq.2023.55
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Editors' Corner 编辑的角落
3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-09-01 DOI: 10.1017/laq.2023.53
Geoffrey McCafferty, Cecilia Sanhueza
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引用次数: 0
Archaeological Analysis of a Water Mill from the Nineteenth Century in Salta, Argentina 19世纪阿根廷萨尔塔水磨的考古分析
IF 0.9 3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-08-31 DOI: 10.1017/laq.2023.22
Pablo José Pifano, F. Fernández, Ailín A. Guillermo, Natalia S. Petrucci, M. C. Páez
Hydraulic mills were introduced in the early colonial period in the Americas to grind wheat into flour. During the nineteenth and twentieth centuries, the rise of the agro-export model in Latin America shaped the development of a flour industry in which water-powered mills played a central role. Over time, these technologies were used not only to increase production for the export market but also to meet the needs of domestic consumption, both local and regional. In this context, in 2017 we began to investigate the characteristics of a hydraulic mill, currently in disuse, in the town of Payogasta in the province of Salta (Argentina), to determine its chronology and functionality. In addition to surveying the structure, we conducted excavations in the nearby rooms that were part of the site. We found that this mill was in operation between the end of the nineteenth and the end of the twentieth centuries, grinding wheat, corn, carob, and red bell pepper, and that the adjoining rooms were used to house the people who were waiting their turn to grind their raw materials.
水力磨机是在美洲早期殖民时期引进的,用来把小麦磨成面粉。在19世纪和20世纪,农业出口模式在拉丁美洲的兴起塑造了面粉工业的发展,其中水力磨坊发挥了核心作用。随着时间的推移,这些技术不仅用于增加出口市场的产量,而且还用于满足当地和区域国内消费的需要。在这种情况下,2017年,我们开始调查萨尔塔省(阿根廷)Payogasta镇目前废弃的水压机的特性,以确定其年代和功能。除了测量结构,我们还在附近的房间进行了挖掘,这些房间是遗址的一部分。我们发现,这家磨坊在19世纪末到20世纪末之间一直在运作,主要研磨小麦、玉米、角豆和红甜椒,毗邻的房间是用来供等待研磨原料的人居住的。
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引用次数: 0
From Slavery to Servitude: Transformations and Continuities in Hacienda Labor, Well-Being, and Foodways in Eighteenth- and Nineteenth-Century Nasca 从奴隶制到奴役:18世纪和19世纪纳斯卡庄园劳动、福利和食物方式的转变和延续
IF 0.9 3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-08-30 DOI: 10.1017/laq.2023.23
Brendan J. M. Weaver, L. A. Muñoz, Karen Durand
The nineteenth century was a dynamic period for hacienda workers on the south coast of Peru. Former Jesuit vineyards with two of the largest enslaved African-descended populations in rural coastal Peru—the haciendas of San Joseph (San José) and San Francisco Xavier (San Javier)—and their annexes in Nasca's Ingenio Valley underwent dramatic transformations with the replacement of their grapevines with cotton and the introduction of new types of workers. Cantonese indentured workers were contracted beginning in the 1830s, and the majority-enslaved workforce was legally emancipated in 1854. Seasonally, highland Andean workers joined the demographically shifting permanent hacienda population. We use evidence from excavated midden contexts at San Joseph, San Xavier, and San Joseph's annex of Hacienda La Ventilla to explore these changing agroindustrial dynamics and worker well-being in the eighteenth and nineteenth centuries. Despite the transformations at the estates, we find that culinary practices developed by enslaved Africans and their descendants during the Jesuit administration, such as the preparation of one-pot meals and stews, continued into the republican era among Cantonese indentured laborers and wage workers of Indigenous, mestizo, and Cantonese origins. We argue that such strategies centered on foodways were a crucial aspect of worker self-care regimes and broader well-being.
对于秘鲁南海岸的庄园工人来说,19世纪是一个充满活力的时期。在秘鲁沿海农村,拥有两个最大的非洲奴隶后裔的前耶稣会葡萄园——圣约瑟夫庄园(San Joseph)和旧金山泽维尔庄园(San Francisco Xavier)——以及它们在纳斯卡Ingenio山谷的附属建筑经历了戏剧性的变化,用棉花取代了葡萄藤,并引入了新型工人。广东契约工从19世纪30年代开始签订合同,1854年,大多数被奴役的劳动力在法律上得到解放。季节性地,安第斯高地的工人加入了人口变化的永久庄园人口。我们利用从圣约瑟夫、圣泽维尔和圣约瑟夫庄园附属建筑中挖掘出来的证据,探索十八、十九世纪这些不断变化的农业工业动态和工人福利。尽管庄园发生了变化,但我们发现,在耶稣会管理期间,被奴役的非洲人及其后代所开发的烹饪实践,如准备一锅饭和炖菜,在广东契约劳工和土著、混血儿和广东血统的工资工人中一直延续到共和时代。我们认为,这种以食物方式为中心的策略是工人自我保健制度和更广泛福祉的关键方面。
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引用次数: 0
El Dorado Offerings in Lake Guatavita: A Muisca Ritual Archaeological Site 瓜塔维塔湖的埃尔多拉多祭品:一个音乐仪式考古遗址
IF 0.9 3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-08-23 DOI: 10.1017/laq.2023.26
Juan Pablo Quintero-Guzmán
Archaeological and ethnohistorical investigations in the south of the Colombian Plateau, in the Eastern Highlands, suggest that before European contact Guatavita was an important Muisca chiefdom—largely because of the prestige conferred by the presence of ceremonial centers in their territories, especially around the lakes in the hills surrounding the Guatavita-Guasca Valley. The fame of Lake Guatavita as the most important Muisca shrine was fueled by Spanish chronicles during the sixteenth and seventeenth centuries, which described it as the core of mass offering ceremonies or of lavish rituals for the chief's investiture, which fed both the story and the myth of El Dorado. This article presents the results of the archaeological survey done around the lake. The type and distribution of the material culture suggest that there was a shrine where small-scale ritual offerings took place, rather than conspicuous celebrations.
在哥伦比亚高原南部东部高地进行的考古和民族历史调查表明,在与欧洲人接触之前,瓜塔维塔是一个重要的穆斯卡酋长——主要是因为在他们的领土上有仪式中心所赋予的声望,特别是在瓜塔维塔-瓜斯卡山谷周围山丘上的湖泊周围。瓜塔维塔湖作为最重要的穆斯卡圣地的名声是由16世纪和17世纪的西班牙编年史所推动的,这些编年史将瓜塔维塔湖描述为大规模祭祀仪式或酋长授职的奢华仪式的核心,这为埃尔多拉多的故事和神话提供了素材。这篇文章介绍了在这个湖周围进行的考古调查的结果。物质文化的类型和分布表明,这里有一个神殿,进行小规模的祭祀,而不是引人注目的庆祝活动。
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引用次数: 0
Estrategias humanas y paleoclima en los Andes (34°S): Variaciones en la intensidad de ocupación de Laguna del Diamante (ca. 2000-500 años aP) 安第斯山脉(34°S)的人类策略与古气候:拉古纳德尔迪亚曼特的占领强度变化(约2000-500年bp)
IF 0.9 3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-08-18 DOI: 10.1017/laq.2023.27
L. Yebra, Valeria Cortegoso, Erik J. Marsh, María Eugenia de Porras, A. Maldonado, Silvina Castro, Ramiro Barberena, Diego Winocur, Victor Durán
El área de Laguna del Diamante (3.000 m snm) tiene una oferta de recursos atractiva para las sociedades humanas durante los últimos 2.000 años. Este trabajo evalúa la variable intensidad en la ocupación humana en Laguna del Diamante en cinco segmentos temporales entre 2030 y 440 años cal aP. Estos segmentos se modelaron a partir de 14 fechados radiocarbónicos procedentes de tres sitios; la densidad de lascas proximales se evalúa como proxy de intensidad de ocupación. Se comparan los pulsos registrados arqueológicamente con la variabilidad ambiental vinculada a aumento/disminución de temperatura y humedad, de los últimos milenios en tres lagunas: Aculeo, Chepical y del Maule (33°-35°S). A partir de diversos indicadores —cobertura vegetal, extensión/disminución de la cubierta de hielo, cambios de la precipitación relacionados al sistema de vientos del oeste y su variabilidad debido a El Niño Oscilación del Sur— se observó en casi toda la secuencia una asociación positiva entre condiciones favorables y ocupaciones intensas. Se discute el registro de dos pulsos de mayor intensidad: entre 1200 y 1280 años cal aP, asociado con aumento de temperatura de verano e intensificación de precipitaciones; y entre 450 y 500 años cal aP, vinculado con condiciones frías y coincidente con la presencia incaica en el área.
在过去的2000年里,拉古纳德尔迪亚曼特地区(3000米snm)为人类社会提供了有吸引力的资源。这项工作评估了拉古纳德尔迪亚曼特在2030年至440 cal年aP之间的5个时间段中人类占领的可变强度。这些时间段是基于来自3个地点的14个放射性碳年代模型;近端片密度被评估为占用强度的代理。我们将考古记录的脉冲与三个泻湖:Aculeo、Chepical和del Maule(33°-35°S)近几千年来与温度和湿度升高/降低相关的环境变化进行了比较。从各种指标—/减少植被覆盖,延伸覆盖冰,降水变化西部风系统和相关的可变性由于厄尔尼诺南方涛动—据在几乎整个序列一个有利条件和职业之间的积极合作。讨论了两个强度最高的脉冲的记录:在1200 - 1280 cal年aP之间,与夏季温度升高和降水加剧有关;在450到500 cal bp之间,与寒冷的条件有关,与该地区印加人的存在相一致。
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引用次数: 0
Starch Analyses on Culinary Equipment from Chavin de Huantar Chavin de Huantar烹饪设备中的淀粉分析
IF 0.9 3区 地球科学 Q2 ANTHROPOLOGY Pub Date : 2023-08-18 DOI: 10.1017/laq.2023.28
Christian Mesía-Montenegro, Sadie L. Weber
Excavations at the Wacheqsa sector from Chavin de Huantar identified contexts from the Middle Formative (1100–900 BC) and Late Formative (900–550 BC) periods. We present results of starch analysis conducted in culinary equipment (ceramics) retrieved from domestic occupations and a large midden. Microbotanical analysis revealed a variety of plant food resources, such as maize, beans, olluco, and possibly chili peppers.
在Chavin de Huantar的Wacheqsa地区的发掘确定了形成中期(公元前1100-900年)和形成后期(公元前900-550年)时期的环境。我们提出的淀粉分析结果进行烹饪设备(陶瓷)从家庭职业和一个大的midden检索。微生物学分析揭示了多种植物食物资源,如玉米、豆类、橄榄,可能还有辣椒。
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引用次数: 0
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Latin American Antiquity
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