Unusually Aggressive Presentation of Malignant Peritoneal Mesothelioma: Two Case Reports.

Malignant peritoneal mesothelioma is a rare disease. Patients mainly present with abdominal distension, pain, nausea, and weight loss with or without an exposure history of asbestos. Diagnosis may be difficult from a clinical and histopathologic perspective.

Ambiguous controls on simulated diazotrophs in the world oceans.

Nitrogen fixers, or diazotrophs, play a key role in the nitrogen and carbon cycle of the world oceans. Diazotrophs are capable of utilising atmospheric dinitrogen which is a competitive advantage over generally faster growing ordinary phytoplankton in nitrogen-depleted conditions in the sun-lit surface ocean. In this study we argue that additional competitive advantages must be at play in order to explain the dynamics and distribution of diazotrophs in the global oceans.

Retracing cyanobacteria blooms in the Baltic Sea.

In late summer, massive blooms and surface scums of cyanobacteria emerge regularly in the Baltic Sea. The bacteria can produce toxins and add bioavailable nitrogen fixed from atmospheric nitrogen to an already over-fertilized system. This counteracts management efforts targeted at improving water quality.

Mapping manifestations of parametric uncertainty in projected pelagic oxygen concentrations back to contemporary local model fidelity.

Pelagic biogeochemical models (BGCMs) have matured into generic components of Earth System Models. BGCMs mimic the effects of marine biota on oceanic nutrient, carbon and oxygen cycles. They rely on parameters that are adjusted to match observed conditions.

[Measuring Visual Acuity].

This article reviews the basic physiology of visual acuity and the principles for its clinical measurement. It describes visual acuity and its limits as a function of the human eye. Referring to the new international standard ISO/FDIS8596:2017 it explains the conditions for standardized visual acuity testing.