The Age of Information in Wireless Cellular Systems: Gaps, Open Problems, and Research Challenges.

One of the critical use cases for prospective fifth generation (5G) cellular systems is the delivery of the state of the remote systems to the control center. Such services are relevant for both massive machine-type communications (mMTC) and ultra-reliable low-latency communications (URLLC) services that need to be supported by 5G systems. The recently introduced the age of information (AoI) metric representing the timeliness of the reception of the update at the receiver is nowadays commonly utilized to quantify the performance of such services.

Enhanced Slime Mould Optimization with Deep-Learning-Based Resource Allocation in UAV-Enabled Wireless Networks.

Unmanned aerial vehicle (UAV) networks offer a wide range of applications in an overload situation, broadcasting and advertising, public safety, disaster management, etc. Providing robust communication services to mobile users (MUs) is a challenging task because of the dynamic characteristics of MUs. Resource allocation, including subchannels, transmit power, and serving users, is a critical transmission problem; further, it is also crucial to improve the coverage and energy efficacy of UAV-assisted transmission networks.

Evaluating the Quality of Experience Performance Metric for UAV-Based Networks.

In this work, we consider a UAV-assisted cell in a single user scenario. We consider the Quality of Experience (QoE) performance metric calculating it as a function of the packet loss ratio. In order to acquire this metric, a radio-channel emulation system was developed and tested under different conditions.

Influence of geographic conditions on body length of male newborns in Kyrgyzstan.

Newborn length has been reported by many researchers to be reduced at high altitudes. However, many of these studies lacked adequate control of the ethnic group which may be confounding the altitude differences. In addition, few studies have examined the sources of variation in birth weight at high altitudes that may be related to ethnic group adaptation to the stresses of this hypoxic environment.

Surface-specific washing-free immunosensor for time-resolved cortisol monitoring.

Cortisol is a steroid hormone that regulates a wide range of vital processes. Its level changes with diurnal rhythm and reacts to stress. Measurement of cortisol levels is still a complex multi-step process.

[Experience in treatment of combined osteovascular limb injuries in children].

The article is dedicated to one of the currently important problems of present-day traumatology and angiosurgery, i. e. possibility of performing primary reconstructive operations in children with complete and incomplete amputations, open and closed bone fractures in the conditions of circulatory impairment.

Dynamic properties of water in silicalite-1 powder.

Self-diffusion of D(2)O in partially filled silicalite-1 crystals was studied at 25°C by (2)H nuclear magnetic resonance (NMR) with bipolar field gradient pulses and longitudinal Eddy-current-delay. For the first time, reliable experimental diffusion data for this system were obtained. Analysis of NMR diffusion decays revealed the presence of a continuous distribution of apparent self-diffusion coefficients (SDCs) of water, ranging from 10(-7) to ∼10(-10) m(2)/s, which include values much higher and lower than that of bulk water (∼10(-9) m(2)/s) in liquid phase.

[Intraocular lens implantation into anterior capsule in the cases of posterior capsule rapture during phacoemulsification].

Rationale and safety of IOL implantation into anterior capsule in the cases of posterior capsule rapture during phacoemulsification and secondary IOL implantation into capsule duplication of aphakic eye. Degree of postoperative refractive changes is estimated.

[Experience with the treatment of combined open injuries to the upper extremities with affected main arteries].

The paper deals with the principles of management of combined mechanical injuries to the upper extremities with special reference to amputation of their segments based on the 3-year experience with the treatment of 1488 patients including 405 ones with traumatic amputations. Replantation of large and small segments was undertaken in 24 and 76% of the cases respectively. 43% of the patients underwent one-step traumatic amputation of two and more segments.

[State of water and its diffusion across lipid bilayers: effect of hydration degree].

The state of adsorbed water (estimated from the dependence of the shape of the 1H NMR spectrum on the angle between the normal to the bilayers and the direction of the magnetic field) and the diffusion of water molecules in the direction of the normal to the bilayers (estimated by 1H NMR spectroscopy with the impulse gradient of magnetic field) in microscopically oriented dioleoylphosphatidylcholine bilayers have been studied depending on hydration. The dependences of the shape of the NMR spectrum on angle differ qualitatively only at concentrations of water greater and less than the concentration that is achieved upon hydration from saturated vapors chi(eq) (about 23 weight %). At concentrations below chi(eq), all water present in samples enters the hydrate shells of polar "heads" of lipids or is in the state of "rapid exchange" with the water of hydrate shells, with the result that the signal of spin echo for water is observed only in a narrow range of angles close to the "magic angle", 54 degrees C.

[Preliminary results of lymphatic chemotherapy in the treatment of rectal cancer].

Preliminary results of treatment of 28 patients with cancer recti, in whom lymphatic chemotherapy was applied and operative intervention as well, were studied. The results of treatment in control group, consisting of 28 patients, to whom neoadjuvant systemic chemotherapy was conducted, are adduced. Comparative analysis performed have shown that general toxic signs occurred three times lesser in patients of the main group, than in a control one; the postoperative complications was two times lesser.

[Possibility of combined surgeries in locally advanced rectal cancer].

Results of treatment of 28 patients with locally advanced rectal cancer are analyzed. Abdomino-perineal extirpation of the rectum with colostomy was performed in 11 patients, abdomino-anal resection with colo-anal anastomosis--in 10, Hartmann's operation--in 7. In 18 cases resection of the posterior wall of the urinary bladder was performed simultaneously, in 3--resection of the ureter with allotransplantation, in 5--supravaginal amputation of the uterus.

[Correlation between clinical course and otitis media purulenta chronica and tonicity of autonomic nervous system].

The study of the autonomic status of the body in 38 patients with different forms of chronic purulent otitis media (CPOM) has demonstrated that patients with exacerbation or complication of CPOM were for the most part sympathotonics and normotonics. The former had more persistent disease with more frequent recurrences.

[The morphology of regional lymphatic nodes in lymphotropic therapy of acute otitis media].

Lymphotropic therapy (LT) was given to rabbits with experimental acute otitis media. The response was good. Reduced vascular blood filling, edema tissue detritus, fibrin, more compact location of lymphocytes in the lymph node cortex reflected normalization of the lymph node structure and improvement of the drainage function.

[Soil pollution by heavy metals in certain agricultural areas of Bashkortostan].

Three soil-climatic regions of Transural Bashkortostan exemplify a problem of soils pollution with heavy metals. The metals content of soil in the regions is near or slightly exceeding the background level. The studies revealed some features of the metals spread in soil of the regions studied.

[Efficacy of antioxidant therapy in patients with acute and chronic purulent otitis media].

The examination of 90 patients referred to hospital for otitis media purulenta (OMP) and 25 healthy subjects included assessment of lipid peroxidation by content of malonic dialdehyde and intensity of chemoluminescence. Enzymes of antioxidant system were also measured (superoxide dismutase and catalase in blood plasma and wash-offs from the acoustic meatus and postoperative cavities). The measurements gave different values for the above parameters for healthy and OMP subjects.

[The dynamics of the signal-averaged ECG in myocardial infarct patients].

To study the dynamics of signal-averaged ECG and late potentials (LP) in the first month of myocardial infarction (MI) and the impact of coronary reperfusion on them, examinations were made of 98 patients with primary myocardial infarction, in 69 of whom coronary reperfusion was achieved. LP was found to be detectable just in the first hours of MI, their stabilization (steady-state appearance or cessation) mainly occurred at day 3 of the onset. LP detection at this time allowed them to be predicted before the patients' discharge (70% sensitivity and 95% specificity, 82% predictive value in the first 24 hours of MI, LPs are characterized by more instability than those in the subsequent period of the patients' hospitalization.

[Comparison of the data of 24-hour ECG monitoring and the condition of the coronary bed in patients with the variants of the course of unstable stenocardia].

A total of 232 patients with various clinical types of unstable angina pectoris were examined. All the patients underwent coronary angiographic studies, 24-hour ECG monitoring. In 40.

[Hemodynamic effects of intravenous allapinine in patients with myocardial infarction].

Single intravenous allapinine, 30 mg, given to patients with acute myocardial infarction, including those with moderate circulatory insufficiency, fails to affect central hemodynamic parameters or has a favourable action: normalizes pulmonary diastolic pressure, cardiac index, diminishes total peripheral vascular resistance. The agent also produces a weak antihypertensive effect and increases heart rate.

[Pharmacodynamics of allapinine during long-term infusion in patients with chronic ischemic heart disease and frequent ventricular extrasystole].

During a prolonged (24-hour) intravenous administration in a dose of 126 mg, allapinine produced a stable pronounced antiarrhythmic effect in 90% of the patients with frequent premature ventricular contraction and adverse reactions in the central nervous system in 65% of the cases. However, the latter effect of allapinine is short-term and ceased independently without altering the infusion rate. More serious adverse effects (hypotensive reactions, proarhythmic effects) occurred in 4% of the cases.

[Unstable stenocardia: prognostic significance of painless forms of myocardial ischemia during hospitalization and in the remote period].

Variants of unstable angina pectoris were compared upon examination of 366 relevant patients. 24-h ECG monitoring registered painless ST shifts in 75 of them. Treatment at hospital produced results independent of ischemia form (painful or painless).