Uncontrolled Flow Research Articles

Flow rates alter the outcome of coral bleaching and growth experiments

It is important to consider flow rate explicitly in coral growth and bleaching studies across multiple species with differing life histories to guide coral conservation, management and captive culture. We quantified growth rates and coral bleaching responses to thermal stress (approx. 18 DHW) in flow-through aquaria with various current velocities to test whether flow conditions alter experimental outcomes. Across natural flow rates (< 1 to over 50 cm/sec), Montipora capitata, Pocillopora acuta, and Pocillopora meandrina showed increased growth and bleaching recovery at intermediate flow rates. Growth rates for all species increased from no flow to intermediate (50–100 turnovers-per-hour, ~ 10–30 cm/s), but then decreased at highest flow (> 190 tph, > 50 cm/s) although this trend was not significant for P. meandrina. The flow treatment with highest recovery from temperature stress differed across species, ranging from 4 tph in the flow-loving P. meandrina to 210 tph in the lagoonal M. capitata, indicating that natural flow regime alone is not predictive. Fragments from the same individual (e.g., P. acuta colony 8) held under identical thermal conditions continue bleaching and die under one flow regime (4 tph), whereas they recover from bleaching (30 tph) or grow fastest (105 tph) under different flow treatments. Flow is rarely reported in the literature, but uncontrolled flow effects may help to explain some of the variation in coral bleaching results reported across the literature. Significant differences among individual colonies, and colony-by-flow interactions, preclude generalizations beyond that flow rates can alter the outcome of both coral growth and bleaching experiments.

Long-term clinical and imaging outcomes of patients undergoing percutaneous femoral intervention following TAVI-related vascular access complications

Abstract Introdcution: Vascular access complications (VAC) are the most common in-hospital adverse event following transcatheter aortic valve implantation (TAVI). Often, ileo-femoral VAC requires bail-out percutaneous interventions with either prolonged balloon inflation and/or stent implantation. The long-term outcomes of these procedures have not been characterized. We aim to assess the clinical and imaging outcomes of patients who underwent bailout percutaneous vascular interventions due to VAC following TAVI. Methods Single-centre prospective study including all consecutive patients with a VAC following trans-femoral TAVI, between 2015-July 2023. VAC was defined as uncontrolled bleeding, acute occlusion or flow limiting stenosis of the femoral vessel leading to percutaneous treatment. Clinical and imaging follow-up was performed with bilateral arterial ultrasound (US) Doppler to assess patency and peak systolic velocity of common femoral arteries. Results A total of 1518 patients underwent TF-TAVI, of which 107 (7%) underwent concomitant ileo-femoral percutaneous angioplasty (PTA) intervention in the same day as TAVI. In patients submitted to PTA, 7 were treated to gain access for TAVI, and 100 (7%) were performed to treat vascular access complications. At a mean follow-up time of 23±3 months, 37 patients died (37%), 6 (16%) from in-hospital complications and 31 (84%) from non-vascular causes after discharge. From the surviving 63 patients (study group) – mean age 83±6 years-old, 29% male, 46% with previous peripheral arterial disease –, 24 underwent bilateral US. Unable to perform imaging on 39 patients due to geographical or mobility issues. At a mean follow-up time of 30±23 months, only 6 patients (10%) reported intermittent claudication, of which 4 (67%) had pre-TAVI symptoms. No patient had at rest symptoms or amputation history. All but one had patent vessel on US. The mean peak systolic velocity of the treated vessel and the contralateral vessel were 71.1±22.9cm/s and 73.1±23.8cm/s, respectively, with no statistically significant difference between them in each patient (mean difference 1.9±25.4, p=0.709). We found no statistically significant differences between peak systolic velocities between both vessels in each patient, accordingly with the treated vessel (Table 2). Conclusion This prospective study shows that patients submitted to percutaneous bailout iliofemoral interventions have a very low rate of lower limb adverse events with very good patency rates at mean follow up of 2.5 years.

Преступность мигрантов в России: реальность, вызовы и перспективы

This article examines the current situation with migrant crime in Russia, as well as the relationship between uncontrolled migration flows and criminal activity of migrants. It raises the question of the effectiveness of the current state migration policy in the light of increased public concern about this issue. The article presents current statistical data on the state of migrant crime in Russia. Despite the decrease in the overall crime rate, the author notes an increase in the number of certain types of crimes, as well as a high level of latency and social tension. There is a category of migrants who commit crimes more often. The article takes into account the personal practical experience of the author and forms a set of problems in the analyzed area. The role of the state and law enforcement agencies in combating migrant crime, as well as measures to counter it in modern conditions, is discussed. Migration crime and uncontrolled migration processes are considered as a threat to national security, which must be dealt with now in order to prevent serious negative consequences in the future.

Biometric access system with automatic registration and loyalty check in the system of recognition and database entry

ABSTRACT Against the backdrop of ongoing terrorist threats and uncontrolled migration flows, there is increased interest in biometric human recognition technology and barcoding technology combined with it. As a possible solution, a biometric access system is proposed, designed to implement three main urgent tasks – automatic registration of people crossing the border; recording registration information in a special biometric database; checking registration information and facial image on the database of wanted people. Effective biometric systems combine verification and identification tasks to increase the reliability of person identification and comparison with reference data sets. In the course of the study, various methods of information processing with its subsequent encoding were considered and analyzed, and the experience of previous systems of this type was investigated. As a result of the study, the effectiveness of using the latest biometric technologies in the migration sphere and in law enforcement agencies for the effective search of offenders has been substantiated. This paper will be useful as a material for further study of facial recognition technology and the integration of QR into the field of biometrics.

Reproductive characteristics of indigenous village chickens

BackgroundIndigenous village chickens (IVCs) show a wide variation in production performance and reproductive characteristics. This high variation is occurred due to genetic and environmental factors and gene-environment interactions.ResultsThis work reports the results of a cross-sectional study conducted using a face-to-face interview with 119 small-scale farmers regarding their insights on the production performance and reproductive characteristics of IVCs. It was reported that pullets were sexually mature on average at the age of 5.5 months and cockerels at 6 months. This comparatively early sexual maturity by the standards of IVCs might be associated with the impact of uncontrolled gene flow from production breeds. However, there is high variation in age at sexual maturity at an individual bird’s level. It was found that pullets mature earlier than cockerels (t = 3.250, df = 159, p = 0.001, 95% CI: -0.670, -0.166). According to the respondents, local hens laid on average 14 eggs per clutch. The average number of clutches per year was 4, which can culminate in the yearly production of 56 eggs. A significantly large proportion of the respondents reported that the dry season is appropriate for laying eggs (96.7%) and brooding chicks (94.1%). During the dry season, the scavenging feed resource is relatively abundant, the risk of infection is comparatively low, and the hot weather is suitable for laying eggs and brooding chicks. IVCs possess a long reproductive lifetime, that is, on average, 3 years in hens and 2 years in cocks, which makes them more productive than has been anticipated. For example, this study found that a hen, on average, can lay 174 eggs and hatch 58 chicks in its average reproductive lifetime of 3 years.ConclusionsThe high intrapopulation variation in the reproductive performance of IVCs is vital resource in genetic improvement programs.

The effect of well temperature on the microstructure and the mechanical performance of bismuth-based plugs in well plugging and abandonment operations

Bismuth-tin (BiSn) alloys are considered promising candidates as potential alternatives to cement for well plugging and abandonment (P&A) applications to prevent any uncontrolled flow of deep reservoir fluids to the surface. As the temperature in the well varies with depth, the final microstructure of the BiSn alloy after its solidification might be influenced, and consequently the mechanical performance of the alloy will also be affected. The aim of this study is to evaluate the microstructural evolution of the BiSn alloy after solidification, at temperatures between 20 °C and 90 °C, to reflect in situ conditions from approximately 800m to 3 km depth. Microstructural characterization was carried out by using scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD). The microstructural analysis revealed that the plug subjected to the lower temperature resulted in finer microstructure, whereas the grain size of the material was increased at higher temperatures. Additionally, the theoretical lever rule was employed to validate the microstructural findings. The observed microstructures were also correlated with tensile tests, which showed that the plug at 20 oC had a yield strength of 67,25 MPa, whereas the yield strength of the plug at 90 oC was only 41,64 MPa. In addition, hydraulic push-out tests further confirmed that lower testing temperatures correlate with higher pressure tolerance of the plug. The plug at 20 oC could withstand 113,5 bar, compared to the plugs at 60 oC and 90 oC which could withstand 90,4 and 50,9 bar, respectively. From all the experimental tests conducted, the outcome was that the lower temperature of 20 oC resulted in a material with a finer microstructure, which plays an important role in enhancing the mechanical properties of the bismuth-based plug. This study aims to advance the understanding of BiSn alloy performance in plug and abandonment (P&A) operations, thereby supporting the industry's efforts to qualify BiSn alloys as effective well-barrier materials.

The Evaluation of Water Loss in The Western North Tarum Irrigation Channel

The Western North Tarum Irrigation channel plays a crucial role in supplying water to irrigated agricultural areas. However, it encounters challenges in ensuring adequate water delivery to all channel segments. This research assesses water loss during the distribution process in the Western North Tarum Irrigation channel, focusing on the evaluation of channel capacity and the impact of suboptimal water management on water loss. The study employs the HEC-RAS model, a hydraulic system analysis tool, to evaluate the channel’s capacity and simulates its behavior under various discharge conditions. The evaluation reveals that two channel segments, B.TUB 13 and B.TUB 25, have exceeded their capacity limits, resulting in overflow. Sedimentation downstream, particularly in these segments, exacerbates the issue by altering the channel slope and impeding water flow. This research identifies poor water distribution management as a significant factor contributing to water loss in the irrigation channel. Inadequate scheduling and the absence of proper water measurement tools result in instances of overwatering or underwatering in some areas. The lack of monitoring and control in the irrigation system hampers the detection of uncontrolled flow in the channels, leading to substantial water loss and inefficient water use. This research underscores the importance of evaluating and maintaining irrigation channel capacity to prevent overflow and water loss. Furthermore, it emphasizes the significance of effective water management to achieve more efficient water distribution and irrigation. Addressing these challenges is crucial for ensuring the long-term sustainability of irrigated agriculture in the Western North Tarum Irrigation area.Keywords: HEC-RAS, Irrigation Channel, Water Distribution, Water Loss, Western North Tarum

Closed-loop plasma flow control of a turbulent cylinder wake flow using machine learning at Reynolds number of 28 000

Machine learning is increasingly used for active flow control. In this experimental study, alternating-current dielectric barrier discharge plasma actuators are deployed for the closed-loop intelligent control of the flow around a cylinder at a Reynolds number of 28 000 based on the velocity feedback from two hot-wire sensors placed in the wake. Variations in the cylinder drag are monitored by a load cell, and the temporal response of the wake flow field is visualized by a high-speed particle image velocimetry system working at 1 kHz. The high-speed control law is operated using a field programmable gate array optimized by genetic programing (GP). The results show that the peak drag reduction achieved by machine learning is of similar magnitude to that of conventional steady actuation (∼15%), while the power saving ratio is 35% higher than with conventional techniques because of the reduced power consumption. Analysis of the best GP control laws shows that the intensity of plasma actuation should be kept at a medium level to maximize the power-saving ratio. When compared with the baseline uncontrolled flow, the best controlled cases constrain the meandering motion of the cylinder wake, resulting in a narrow stabilized velocity deficit zone in the time-averaged sense. According to the results of proper orthogonal decomposition and dynamic mode decomposition, Karman vortex shedding is promoted under the best GP control.

Prevalence and incidence of urinary incontinence in pregnancy: a review

The uncontrolled flow of urine that happens when someone sneezes, coughs, or engages in physical activity is known as urinary incontinence (UI). The most common kind of urine incontinence that affects women is this one. Hence, this study aimed to examine the incidence, prevalence, and contributing factors of pregnancy-related UI. An electronic literature search was conducted in the MEDLINE database using the search phrases &amp;quot;Urinary Incontinence,&amp;quot; &amp;quot;UI,&amp;quot; &amp;quot;Pregnancy,&amp;quot; &amp;quot;Prevalence,&amp;quot; and &amp;quot;Risk Factors&amp;quot; to discover relevant papers between 2018 and 2024. On Google Scholar, relevant search terms were employed to search for academic publications. Several inclusion criteria served as a guide for the selection of articles. It was found that UI is a condition that often increases in prevalence from 6 months to 12 years postpartum. Typically, it is of low to moderate severity and has little impact on the overall well-being of the majority of persons. Furthermore, the study highlighted the importance of pregnancy, rather than the act of giving birth, in the subsequent development of urine incontinence in the long term after delivery. Women who gave birth vaginally had a greater occurrence of persistent UI as compared to those who had cesarean deliveries. During pregnancy, more than 50% of women suffer from urine incontinence. Nevertheless, the majority saw a rapid recovery during the first year after childbirth.

A data-driven approach to guide supersonic impinging jet control

A data-driven framework using snapshots of an uncontrolled flow is proposed to identify, and subsequently demonstrate, effective control strategies for different objectives in supersonic impinging jets. The open-loop, feed-forward control approach, based on a dynamic mode decomposition reduced-order model (DMD-ROM), computes forcing receptivity in an economical manner by projecting flow and actuator-specific forcing snapshots onto a reduced subspace and then evolving the dynamics forwards in time. Since it effectively determines a linear response around the unsteady flow in the time domain, the method differs materially from typical techniques that use steady basic states, such as stability or input–output approaches that employ linearized Navier–Stokes operators in the frequency domain. The method presented naturally accounts for factors inherent to the snapshot basis, including configuration complexity and flow parameters such as Reynolds number. Furthermore, gain metrics calculated in the reduced subspace facilitate rapid assessments of flow sensitivities to a wide range of forcing parameters, from which optimal actuator inputs may be selected and results confirmed in scale-resolved simulations or experiments. The DMD-ROM approach is demonstrated from two different perspectives. The first concerns asymptotic feedback resonance, where the effects of harmonic pressure forcing are estimated and verified with nonlinear simulations using a blowing–suction actuator. The second examines time-local behaviour within critical feedback events, where the phase of actuation becomes important. For this, a conditional space–time mode is used to identify the optimal forcing phase that minimizes convective instability growth within the resonance cycle.

Directed circulating flows in tanks of moving objects

The results of liquid fuel inertial flows numerical modeling in the tanks of the spacecraft during its maneuvering in the Earth's orbit are given. It is shown that the circulations that occur when internal guiding devices are used in the form of widely spaced rigid baffles can be deformed and affect the flow space not covered by them. In addition, the circular moments of inertia of the liquid on the baffles can be controlled by means of the appropriate location of the guide devices in terms of width and distance from the tank wall. The force effects calculation of the moving fluid on the walls and internal structures makes it possible to fairly correctly present the hydrodynamic picture of the of inertial flows development, as well as predict the methods and means of compensation for such disturbances. According to the obtained results of the specified processes simulation in the tanks, it can be stated that the inertial flows of the liquid in the tanks are strongly nonlinear, the properties of which depend on the geometry, the initial conditions for the generation of peak force effects tank on the tank walls and bottoms. The use of internal guiding devices in the flow significantly changes the geometry of wave formations, corrects the coordinates and duration of resonant currents in the tank. The main task is to minimize the mass and dimensions of the baffles with a simultaneous increase in the damping efficiency of resonant flows. In addition, the determination of the power parameters real distribution contributes to the development of the latest, more effective designs of baffles, which will allow more reliable influence on uncontrolled inertial flows in tanks.

Application of Asymptotic Analysis of a High-Dimensional HJB Equation to Portfolio Optimization

In this paper, we consider a portfolio optimization problem where the wealth consists of investing into a risky asset with a slow mean-reverting volatility and receiving an uncontrollable stochastic cash flow under the exponential utility. The Hamilton–Jacobi–Bellman equation formulated from the optimal investment problem is a high-dimensional nonlinear partial differential equation and difficult to find its analytical or numerical solutions. The paper provides a tractable asymptotic approach which treats the initial problem as a perturbation around the constant volatility problem. In this paper, we present a formal derivation of asymptotic approximation and prove the accuracy of the value function. Moreover, an illustrative example is provided to assess our approximate strategy and value function.

Metallic slurry preparation and printability assessment for material extrusion additive manufacturing

Material extrusion additive manufacturing of thermoplastics is so advanced due to the tunable rheological properties and hence a suitable printability, which is deficient for metals. Even though semi-solid modification and binder indirect modification are used to realize metal extrusion printing, the uncontrollable flow behavior and the metallurgical defects make it challenging to bridge this gap. In this study, mixed powder remelting and printability assessment were first proposed for producing metallic slurry with pre-designed microstructure and suitable printability without adding fillers or polymer carriers. Specifically, the hypoeutectic Sn-Bi metallic slurry was obtained by remelting the mixed powder composed of SnBi58 powder and pure Sn powder. The microstructural characteristics at different temperatures were investigated, demonstrating the ability of microstructure predesign. Furthermore, the printability, including stability, extrudability, and buildability, was evaluated by an advanced rheometer. The combined slurry preparation and printability assessment provides a reliable method for parameters improvement to obtain the structural fidelity.

Pyridaben impaired cell cycle progression through perturbation of calcium homeostasis and PI3K/Akt pathway in zebrafish hepatocytes

Environmental pollution caused by pesticides is a growing concern. Pyridaben, a widely used organochlorine insecticide, is a representative water pollutant. Owing to its extensive usage, it has been detected in various aquatic ecosystems, including rivers and oceans. Pyridaben is highly toxic to aquatic organisms; however, the mechanism of its toxicity in the liver, which is important in toxicant metabolism, has not been studied. Therefore, we employed zebrafish and its well-characterized liver cell line, ZFL to assess pyridaben hepatotoxicity and explore its potential mechanisms of action. Pyridaben led to reduction of the liver size and fluorescence intensity of dsRed-labeled Tg (fabp10a:dsRed) zebrafish. It reduced the viability and proliferation of ZFL cells in vitro by inducing apoptosis and cell cycle arrest. These changes might be primarily linked to uncontrolled intracellular calcium flow in ZFL cells exposed to pyridaben. Additionally, it also downregulates the PI3K/Akt signaling cascade, leading to the inactivation of Gsk3β and nuclear translocation of β-catenin. Taken together, our findings suggest that pyridaben could have hepatotoxic effects on aquatic organisms. This study is the first to provide insight into the hepatotoxic mechanism of pyridaben using both in vivo and in vitro models.

Sex-Dependent Differences in Blood-Urine Barrier Are Subtle but Significant in Healthy and Chronically Inflamed Mouse Bladders.

The urothelium is a vital permeability barrier that prevents the uncontrolled flow of urinary components into and out of the bladder interstitium. Our study addressed the question of possible sex-specific variations in the urothelium of healthy mice and their impact on chronic bladder inflammation. We found that healthy female bladders have a less robust barrier function than male bladders, as indicated by significant differences in transepithelial electrical resistance (TEER) values. These differences could be attributed to detected higher claudin 2 mRNA expression and a less pronounced glycocalyx in females than in males. In addition, TEER measurements showed delayed barrier recovery in chronically inflamed female bladders. We found subtle differences in the expressions of genes involved in the regulation of the actin cytoskeleton between the sexes, as well as pronounced urothelial hyperplasia in females compensating for attenuated barrier function. The identified genetic variations in glycosylation pathways may also contribute to this divergence. Our findings add to the growing body of literature on the intricate sex-specific nuances of urothelial permeability function and their implications for chronic bladder inflammation. Understanding these differences could lead to tailored diagnostic and therapeutic approaches in the treatment of bladder disorders in the future.

Investigation of Six (06) Cases of AFP Notified from Week 01 to 17 in the Health District of Kolondièba in Mali in 2023

Poliomyelitis is an infectious disease caused by the poliovirus and largely affects children under the age of 05. Our descriptive study concerned the analysis of suspected cases of poliomyelitis notified from week 01 to 17 in the health district of Kolondièba in 2023. During this period six (06) cases of AFP were notified by Community Health Centers (CHC) from Diaka (02 cases), Kolosso (01 case), Central (02 cases) and Fakola (01 case) case imported from the Ivory Coast in search of care. Their age range was 0-4 years and presented paralysis of the lower limbs for some and upper for others. Vaccination coverage with oral polio vaccine in the first quarter in Diaka and Kolosso was 95%, on the other hand, Central and Kolosso had a rate &lt;95%. The female gender accounted for 66.67% of cases with a sex ratio of 0.6. The attack rate was 8.91 cases per 100,000 inhabitants. Only three of the six (06) cases received at least three doses of vaccine. The risk factors were the uncontrolled migratory flow and the inaccessibility of health centers. The assessment of the living environment did not show any environmental risk factors. The survey made it possible to build the capacity of service providers on the surveillance of notifiable diseases, raise public awareness of risk factors, the declaration of children under 15 with paralysis regardless of the cause at the health center. and compliance with the vaccination schedule. Keywords : AFP, Mali, Poliomyelitis, investigation, vaccination.

Evaluation of different well control methods concentrating on the application of conventional drilling technique

Over the past few decades, engineering failures have existed, and lack of knowledge, and safety practices have led to various catastrophic events of blowouts causing countless casualties and injuries to workers and individuals all around the world. Well control is a technique in oil and gas activities specifically when drilling oil and gas wells. Hydrostatic pressure and formation pressure should be a priority to prevent reservoir fluids from infiltrating the wellbore. The primary well control is commonly the primary barrier using the fluid column to prevent uncontrolled formation fluid flow into the wellbore by preserving pressure more substantial than formation pressure. The secondary well control provides the same purpose but involves using a piece of equipment known as a Blowout Preventer. The objective of this paper is to evaluate the effectiveness of different well control techniques of various well control methods, including the commonly used in petroleum engineering focusing on the application of conventional drilling. This study was conducted through a literature review. The analysis of the case studies synthesized to provide a comprehensive overview of the various well control methods. The findings suggested that conventional drilling techniques can be effective in controlling wellbore pressures, however, limitations existed in certain situations. Moreover, the parameters required controlling the well during a kick or a blowout is discussed to succeed in the application of well control methods in the oil and gas industry.

The Problem of State Sovereignty in the Context of Deglobalization

The relevance of the research topic is due to the inconsistency of globalist and deglobalist trends in the modern world and their influence on the sovereignty of state actors.The purpose of the study is to analyze the impact of deglobalization on state sovereignty.Objectives of the study: the study of strengthening the sovereignty of the state at the economic, political and cultural levels.Methodology. In the course of writing the article, the method of system analysis was used to study the problems of sovereign powers of state actors. General scientific research methods were applied in the work. Statistical and regulatory sources were used for the validity of the study.Results. The problems of the phenomenon of state sovereignty at the level of deglobalist tendencies are revealed; the zones in which state sovereignty is being strengthened are identified (trade wars; import substitution policy; isolationist approach; legislative decisions, solving global problems, participation in international organizations).Conclusion. The process of strengthening State sovereignty in the context of the deglobalization of the international community is objective. The expansion of the sovereign powers of the state is associated with an increase in the number of global problems. Challenges and threats of the international community force countries to make collective decisions that limit the State's own national interests. Therefore, state actors are forced to follow the path of isolationism and rejection of communitarian measures in developing solutions to mitigate global risks. At the political level, sovereignty is strengthened at the level of participation in multilateral formats and solving global problems. The strengthening of sovereignty in the economic sphere is determined by the state of the world economy. The presence of a global economic crisis pushes countries to apply the policy of trade wars, protectionism, sanctions mechanism and import substitution. The problem of expanding sovereign powers at the level of the cultural sphere is associated with uncontrolled migration flows. In this case, there is an increase in conflicts along the lines of national identity.

Laboratory equipment for practice learning in the framework of educational course “Molecular Physics and Thermodynamics”

This article presents laboratory equipment for practice learning of physics specialties students in the framework of educational course “Molecular Physics and Thermodynamics”. The presented laboratory equipment allows measuring the temperature dependence of the thermal conductivity coefficient of molecular liquids under atmospheric pressure and saturated vapors pressure in the temperature range from 150K to 400K. A general scheme of the developed experimental setup for measuring the thermal conductivity of liquids by the steady-state method under isobaric condition has been described. The created laboratory setup uses general design solutions of the coaxial cylinder method, preserving its features and measurement precision in general. The measurements are carried out on coaxial-geometry cell under atmospheric pressure. A modified heat potentiometer method with one thermometer was used, which allowed us to minimize the error in the estimation of the thermal conductivity coefficient due to the uncontrollable heat flows and different calibration of thermometers. The total systematic error in the measurement of the molecular liquids thermal conductivity does not exceed 3%. The procedures for direct measurement and calculation of the thermal conductivity coefficient of molecular liquids using the developed laboratory equipment are described.

Как совместить охрану природы и рекреационную деятельность в Арк­тике: пример природного парка «Териберка» (Мурманская область)

The authors give ecological arguments for the creation of the Teriberka Nature Park (2,418.5 ha). The Nature Park is characterized by high recreational potential as well as environmental significance. 18 species of plants and animals listed in the Red Data Book of the Murmansk Region, as well as five ones listed in the Red Data Book of the Russian Federation are recorded within the boundaries of the Natural Park. There are natural-territorial complexes of special aesthetic value here: the valley of the Teriberka River, the coast of the Barents Sea with a rugged coastline, beaches and sea terraces formed by large rounded boulders, Batareisky Waterfall, rocky hills and areas of shrub tundra, interspersed with small lakes, sheer cliffs with colonies sea birds, a number of historical and archaeological sites. Currently, the landscapes of lower reaches of the Teriberka River are experiencing a strong human impact. An important feature of the territory is easy transport accessibility for tourists. At present, the uncontrolled tourist flow is the most significant agent of the territory transformation, as a result of which landscapes with high aesthetic qualities begin to degrade. With the creation of a natural park, the intensity and coverage of human disturbances of landscapes will be reduced, and the existing aesthetic potential of landscapes will be used more efficiently. Land use planning has been developed in order to establish a differentiated regime of special protection. The nature protection areas are intended to preserve the environment in its natural state, and the recreational zone is intended to ensure and implement recreational activities and nature-educational tourism. In order to preserve the landscape and architectural unity of the village and the natural park, regulation has been introduced for the construction of new and reconstructed buildings in accordance with the historical environment.