Seasonal Water "Pump" in the Atmosphere of Mars: Vertical Transport to the Thermosphere

We present results of simulations with the Max Planck Institute general circulation model (MPI-MGCM) implementing a hydrological cycle scheme. The simulations reveal a seasonal water "pump" mechanism responsible for the upward transport of water vapor. This mechanism occurs in high latitudes above 60$^\circ$ of the southern hemisphere at perihelion, when the upward branch of the meridional circulation is particularly strong. A combination of the mean vertical flux with variations induced by solar tides facilitates penetration of water across the "bottleneck" at approximately 60 km. The meridional circulation then transports water across the globe to the northern hemisphere. Since the intensity of the meridional cell is tightly controlled by airborne dust, the water abundance in the thermosphere strongly increases during dust storms.Comment: 15 pages, 4 figure

Morphology of the excited hydroxyl in the Martian atmosphere: A model study. Where to search for airglow on Mars?

<p>The data for Remote Sensing article figures.</p&gt

Simplified Relations for the Martian Night-Time OH* Suitable for the Interpretation of Observations

Observations of excited hydroxyl (OH*) emissions are broadly used for inferring information about atmospheric dynamics and composition. We present several analytical approximations for characterizing the excited hydroxyl layer in the Martian atmosphere. They include the OH* number density at the maximum and the height of the peak, along with the relations for assessing different impacts on the OH* layer under night-time conditions. These characteristics are determined by the ambient temperature, atomic oxygen concentration, and their vertical gradients. The derived relations can be used for the analysis of airglow measurements and the interpretation of their variations

Modeling the hydrological cycle in the atmosphere of Mars: Influence of a bimodal size distribution of aerosol nucleation particles

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Functional state of the blood coagulation system in postsurgery period in patients with malignant tumors of the GI tract

The present paper analyzes changes in coagulation system markers in 64 patients with malignant tumors of the GI in surgical treatment. Results obtained when using parameters of the expanded coagulogram and a new global hemostatic assessment test with the use of Thrombodynamics recorder T2 have been evaluated. Based on the findings, we have developed models for predicting postoperative venous thrombosis and compared different methods for the coagulation system examinations. The thrombodynamics test allows us to assess the state of thrombotic readiness in the postoperative period in 26.56% of patients with GI cancer upon the standard anticoagulant prevention. High levels of the thrombinemia markers and hypercoagulation at the fibrin clot growth rate have been detected after the surgery. Correlation between the plasma fibrinogen levels and the fibrin clot density has been observed. Therefore, the proposed highly sensitive global assessment test of the hemostatic system allows us to detect hypercoagulation and evaluate the efficacy of a preventive dose of low molecular weight heparin (LMWH)

De novo assembling and primary analysis of genome and transcriptome of gray whale Eschrichtius robustus

Abstract Background Gray whale, Eschrichtius robustus (E. robustus), is a single member of the family Eschrichtiidae, which is considered to be the most primitive in the class Cetacea. Gray whale is often described as a “living fossil”. It is adapted to extreme marine conditions and has a high life expectancy (77 years). The assembly of a gray whale genome and transcriptome will allow to carry out further studies of whale evolution, longevity, and resistance to extreme environment. Results In this work, we report the first de novo assembly and primary analysis of the E. robustus genome and transcriptome based on kidney and liver samples. The presented draft genome assembly is complete by 55% in terms of a total genome length, but only by 24% in terms of the BUSCO complete gene groups, although 10,895 genes were identified. Transcriptome annotation and comparison with other whale species revealed robust expression of DNA repair and hypoxia-response genes, which is expected for whales. Conclusions This preliminary study of the gray whale genome and transcriptome provides new data to better understand the whale evolution and the mechanisms of their adaptation to the hypoxic conditions