Time trends and regional differences of polychlorinated dibenzo-p-dioxins and -furans (PCDD/Fs), polychlorinated biphenyls (PCBs), polychlorinated naphthalenes (PCNs), DDTs, polybrominated biphenyls (PBBs) and polybrominated diphenylethers (BDEs) were studied in unhatched osprey eggs collected by bird ringers in 1972-2017 from four areas in Finland. Two study areas were from Baltic Sea, Northern Quark and Finnish Archipelago Sea, while the two others were inland lake areas, eutrophicated Lake Vanajanselkä affected by industrial emissions, and Pristine SW Lake Area. The highest concentrations of most compound groups were in Lake Vanajanselkä consistent with high emissions, the predominance of bream as a prey, and higher concentrations in bream compared to other prey fish.
View Article and Find Full Text PDFA theoretical framework, united by a "system effect" is formulated to model the cutting/haptic force evolution at the cutting edge of a surgical cutting instrument during its penetration into soft biological tissue in minimally invasive surgery. Other cutting process responses, including tissue fracture force, friction force, and damping, are predicted by the model as well. The model is based on a velocity-controlled formulation of the corresponding equations of motion, derived for a surgical cutting instrument and tissue based on Kirchhoff's fundamental energy conservation law.
View Article and Find Full Text PDFVisceral arterial pseudoaneurysms are uncommon vascular abnormalities affecting renal or splanchnic arteries. They can be complications of chronic pancreatitis, blunt or penetrating abdominal trauma, or surgical, endoscopic and interventional radiological procedures. Visceral arterial pseudoaneurysms can be life-threatening because of hemorrhagic shock secondary to rupture and massive bleeding.
View Article and Find Full Text PDFObjective: Carotid endarterectomy (CEA) is among the most commonly performed vascular procedures. Some have suggested worse outcomes with contralateral internal carotid artery (ICA) occlusion. We compared patients with and patients without contralateral ICA occlusion using the Society for Vascular Surgery Vascular Quality Initiative database.
View Article and Find Full Text PDFObjective: Carotid endarterectomy (CEA) reduces stroke risk in selected patients. However, CEA risk profile may be different in older patients. We compared characteristics and outcomes of octogenarians and nonagenarians with those of younger patients.
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