Results 41 to 50 of about 37,954 (251)

The four elements in Robert Grosseteste's De Impressionibus Elementorum

, 2013
In De Impressionibus Elementorum, a treatise written by Grosseteste shortly after 1220, we can find a discussion of some phenomena involving the four classical elements (air, water, fire and earth), in the framework of an Aristotelian physics of the ...
Sparavigna, Amelia Carolina
core   +1 more source

Updated management of malignant biliary tract tumors: an illustrative review [PDF]

, 2016
The management of malignant biliary tumors (MBTs) is complex and requires a multidisciplinary approach. Guidelines and methods of staging for biliary tumors have recently been released by main international societies, altering the clinical and radiologic
Cannavale, Alessandro, Catalano, Carlo, Fanelli, Fabrizio, Fiocca, Fausto, Gazzetti, Marianna, Maher, Ben, Santoni, Mariangela   +6 more
core   +1 more source

Coexistent ampullary squamous cell carcinoma with adenocarcinoma of the pancreatic duct

The Saudi Journal of Gastroenterology, 2011
Primary squamous cell carcinoma (SCC) of ampulla has seldom been reported. However, metastatic SCC to ampulla of Vater is well known. We report a case of primary SCC of ampulla of Vater coexistent with well-differentiated adenocarcinoma of the distal ...
Gayatri S Pathak, Sanjay D Deshmukh, Prasanna A Yavalkar, Amrut V Ashturkar   +3 more
doaj   +1 more source

Inner ear morphology in the Atlantic molly Poecilia mexicana [PDF]

, 2011
Fishes show an amazing diversity in hearing abilities, inner ear structures, and otolith morphology. Inner ear morphology, however, has not yet been investigated in detail in any member of the diverse order Cyprinodontiformes.
Hess, Martin, Plath, Martin, Schulz-Mirbach, Tanja   +2 more
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Morphologic study of patent ductus arteriosus based on computed tomography data in 25 dogs

Frontiers in Veterinary Science
IntroductionThe objective of this study is to analyze the morphology and measurement dimensions of patent ductus arteriosus (PDA) based on computed tomography images.MethodsThe present study retrospectively evaluated computed tomography angiography data ...
Heesung Umh, Kyoung-a Youp, Jeongmin Lee, Daeyun Seo, Seongsoo Lim, Beomkwan Namgoong, Ahreum Choe, Hyeajeong Hong, Nanju Lee, Isong Kim, Junghee Yoon, Jihye Choi, Kichang Lee, Hakyoung Yoon, Min Su Kim   +14 more
doaj   +1 more source

GATA4‐Driven Transcription of HtrA1 Promotes Cellular Senescence in Ménière's Disease and Age‐Related Audio‐Vestibular Dysfunction

Advanced Science, EarlyView.
This study identifies the HDAC6/GATA4/HtrA1 axis as a critical driver of cellular senescence in the inner ear. GATA4 nuclear translocation, facilitated by HDAC6 downregulation, transcriptionally activates HtrA1, promoting hair cell senescence, SASP, and audio‐vestibular dysfunction in models of Ménière's disease and age‐related audio‐vestibular ...
Na Zhang, Na Li, Yan Wang, Jing Zhang, Jiahui Liu, Lei Chen, Yongdong Song, Yurong Mu, Yuechen Han, Yafeng Lyu, Xiaofei Li, Hanyue Wang, Jing Wang, Yao Lu, Zhaomin Fan, Daogong Zhang, Haibo Wang   +16 more
wiley   +1 more source

Metastatic rectal cancer in the ampulla of Vater: A unique case

Cancer Reports, 2022
Background A metastatic lesion located in the ampulla of Vater is considered extremely rare, with only 32 cases reported globally. Case A 65‐year‐old patient was primarily diagnosed with a rectal adenocarcinoma.
Athina A. Samara, Ioanna‐Konstantina Sgantzou, Alexandros Diamantis, Alexandros Kokkalis, Konstantinos Tsapakidis, Maria Tolia, Gregory Christodoulidis, Christos Rountas, Dimitris Zacharoulis   +8 more
doaj   +1 more source

A new genus of the millipede tribe Brachyiulini (Diplopoda: Julida: Julidae) from the Aegean region [PDF]

, 2013
A new genus of the julid tribe Brachyiulini, Enghophyllum gen. nov., is described, comprising two species from Greece. The type-species, E. naxium (Verhoeff, 1901) comb. nov. (ex Megaphyllum Verhoeff, 1894), appears to be rather widespread in the Aegean:
Lazányi, Eszter, Vagalinski, Boyan
core   +3 more sources

Paternal Caffeine Exposure Programs Offspring Stress Vulnerability via Sperm Dlk1‐Dio3 Imprinting‐Directed Remodeling of a Novel Neural Circuit

Advanced Science, EarlyView.
The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu, Gaole Dai, Sen Zhu, Shuai Zhang, Tingting Wang, Yuan Meng, Fang Yang, Xiaoyi Han, Hui Wang, Hao Kou, Dan Xu   +10 more
wiley   +1 more source