Cropland Mapping Using Sentinel-1 Data in the Southern Part of the Russian Far East.

Crop identification is one of the most important tasks in digital farming. The use of remote sensing data makes it possible to clarify the boundaries of fields and identify fallow land. This study considered the possibility of using the seasonal variation in the Dual-polarization Radar Vegetation Index (DpRVI), which was calculated based on data acquired by the Sentinel-1B satellite between May and October 2021, as the main characteristic.

[Risk factors for the early development of septic shock in patients with severe COVID-19].

Aim: In a retrospective study, we evaluated factors associated with the early development of septic shock in patients with severe COVID-19.

Materials And Methods: We collected medical records of the intensive care unit patients submitted by the local COVID-19 hospitals across Russia to the Federal Center for the Critical Care at the Sechenov First Moscow State Medical University (Sechenov University). Septic shock in crticially ill patients requiring mechanical ventilation was defined as a need in vasopressors to maintain blood pressure.

[History of surgical and non-surgical tracheal intubation].

Anesthesiologist daily encounters the need for maintaining an airway patency. This manuscript is devoted to the development of this technique from ancient times to the present. Three areas including tracheostomy, endoscopy and tracheal intubation are comprehensively described.

[Practical aspects of sedation in dentistry].

In modern dental practice, the use of sedation to eliminate the fear and anxiety of the patient has become frequent. Unfortunately, according to the legislation, the concept of sedation is inseparable from anesthesia and it can only be performed by an anesthesiologist in a group or Department of Anesthesiology and Resuscitation. The article is devoted to a detailed comprehensive review of sedation in dental and surgical interventions in the maxillofacial area.

[THE CHOICE OF TRACHEAL INTUBATION METHOD IN RECONSTRUCTIVE MAXILLO-FACIAL SURGERY WITH DIFFICULT AIRWAYS.].

Background: The development of modern video - and endoscopic equipment allows for revision and adjust to modern protocols for maintaining patency of the difficult airway, especially in maxillofacial or ENT -surgery.

The Purpose Of The Study: Comparison the efficacy ofvarious methods of maintaining the airway patency in the practice of reconstructive maxillofacial surgery.

Materials And Methods: 89 patients, who were divided into 4 groups, were examined.

[INFUSION THERAPY IN RECONSTRUCTIVE MAXILLOFACIAL SURGERY].

Unlabelled: Restricted infusion strategy in combination with antifibrinolytic agents such as aprotinin and tranexamic acid is effective for blood saving in maxillofacial surgery. But reduction of infusion volume can lead to intraoperative hypovolemia. The goal of this study was to assess compensative effect of different regimes of infusion therapy and antifibrinolytics on intraoperative volume status and electrolyte balance in reconstructive maxillofacial surgery.

[Causes and pathogenesis of hypocoagulation in reconstructive maxillofacial surgery].

Anaesthesia for reconstructive maxillofacial surgery can be accompanied with a significant hypocoagulation and blood loss. Possible causes of a hypocoagulation are dilution coagulopathy and disseminated intravascular coagulation. Coagulograms analysis showed that all patients have disturbances of blood clotting system.

[Features of maxillary and mandibular nerves imaging during stem regional blockades. From paresthesia to 3D-CT guidance].

There are difficulties in procedure of regional block of 2 and 3 brunches of the trigeminal nerve despite availability of many different methods of nerves imaging. The difficulties are connected with complex anatomy structure. Neurostimulation not always effective and as a rule, is accompanied with wrong interpretation of movement response on stimulation.

[Tactics of tracheal intubation in patient with tumor of the tongue base].

Anatomic deformations can cause complications during the tracheal intubation in the maxillofacial surgery and otorhinolaryngology. The article deals with a clinical case of tracheal intubation in a patient with the anatomic deformations. Successful tracheal intubation was performed in the patient in conditions of conscious and spontaneous breathing under the local anaesthesia, when a fibreoptic bronchoscopy was not available.

[Video laryngoscopy and retromolar endoscopy in maxillofacial surgery].

The article presents successful intubation experience in 54 patients. Laryngoscopy was performed with McGrath Series 5 laryngoscopy with a difficult airway blade ("Airway Medical") in 46 patients, and retromolar endoscope Bonfils ("Karl Storz") in 9 patients. Technical traits, resulting from the use video laryngoscopy and retromolar endoscope are discussed.

[The autonomous nervous system and blood circulation system--homeostasis and homeokinesis during spine surgery].

In 30-surgical patients, operated for degenerative-dystrophic changes of the spine (microdiscectomy), with due regard for initial condition of the ANS (differentiated by Kerdo index), homeokinesis state has been studied. The circulatory system function was controlled with the use of a standard monitoring and central hemodynamics indices, that has allowed to mark out Hyper-and Hypo - eukinetic circulation types. Microdiscectomy performed under combined anesthesia (N2O/ O2 - 0.

Turbulent viscosity variability in self-preserving far wake with zero net momentum.

The profile of the self-preserving far wake with zero net momentum depends on the effective turbulent viscosity coefficient. The current model is based on the assumption of uniform viscosity in the wake cross section. It predicts the self-similar shape of the wake where the width W depends on the distance z from the body as W∝z(1/5) for the axisymmetric case (or z(1/4) for the plane case).