Results 41 to 50 of about 37,807 (266)

Paleoneuroanatomy of the European lambeosaurine dinosaur Arenysaurus ardevoli [PDF]

open access: yes, 2015
The neuroanatomy of hadrosaurid dinosaurs is well known from North America and Asia. In Europe only a few cranial remains have been recovered that include the braincase. Arenysaurus is the first European endocast for which the paleoneuroanatomy has been
Canudo, JI   +3 more
core   +10 more sources

Expression of follicle-stimulating hormone, luteotropic hormone, estrogen and progesterone receptors in ovary, oviduct and endometrium after estrus induction in ewe [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2019
Induction of estrus is an effective management tool for increasing the pregnancy rate in ewes, and there is a long estrus interval after lambing in spring in Small-tail Han ewe.
Ling YANG   +6 more
doaj   +1 more source

Heterobranch sea slugs (Mollusca: Gastropoda) from Ascension Island, South Atlantic Ocean [PDF]

open access: yes, 2017
The small volcanic island of Ascension is situated in the middle of the South Atlantic Ocean, more than 1500 km from the coast of Africa, its nearest continental area. To date, eight 'opisthobranch' species were reported from the island. As a result of a
Bergh   +24 more
core   +1 more source

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

open access: yes, 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   +6 more
core   +1 more source

Coexistent ampullary squamous cell carcinoma with adenocarcinoma of the pancreatic duct

open access: yesThe 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   +3 more
doaj   +1 more source

The four elements in Robert Grosseteste's De Impressionibus Elementorum

open access: yes, 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

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

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

open access: yesFrontiers 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   +14 more
doaj   +1 more source

Hesperiidae of Rondônia, Brazil: Porphyrogenes Watson (Lepidoptera: Pyrginae: Eudamini), with descriptions of new species from Central and South America [PDF]

open access: yes, 2008
The pyrgine genus Porphyrogenes Watson, 1893 (Hesperiidae) is discussed, especially as it occurs in central Rondônia, Brazil. Of eleven species of Porphyrogenes found in Rondônia, four (P. specularis, P. convexus, P. sparus, and P.
Austin, George T.   +1 more
core   +1 more source

Preoperative Aortic Calcification Volume Predicts Postoperative Complications in Nonpancreatic Cancer Patients Undergoing Pancreaticoduodenectomy

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
ABSTRACT Background/Objectives Postoperative complications following pancreaticoduodenectomy (PD) remain high, particularly in patients with soft pancreatic texture. Abdominal aortic calcification volume (AACV), a surrogate marker of systemic arteriosclerosis, has been associated with increased surgical risk in lower gastrointestinal procedures ...
Masaki Horiuchi   +9 more
wiley   +1 more source

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