Main Bodies Research Articles

What is the weight of expectation bias in oncology trials?

What is the weight of expectation bias in oncology trials?

Research on the Integration Model of Moral Education in Group Schools: A Case Study of H Education Group in China

Group schools are increasingly emerging as a school-running model that balances and improves school quality. The integrated model can promote the connection within the group school, and is an ideal way to promote the improvement of the school's moral education effect. The research adopts qualitative research, collects data information such as documents through observation method and interview method, and conducts data processing through text analysis method. The study selected four representative affiliated schools in the H Education Group, observed their open classes and teaching and research; meanwhile, conducted open talk with a total of eight front-line teachers in four schools to understand the current status of the integration of moral education in the group school. The study found that the integration of moral education in group schools mainly involves three main bodies, namely universities, member schools and local teaching and research offices. The interaction of the three main bodies forms three elements: content, resources, and culture. Group schools should strive to form a unique school-based moral education curriculum, and at the same time build a long-term interoperable teaching and research platform, and generate a harmonious and diverse group culture, thereby achieving integration.

Structure and Functional Properties of Bacterial Communities in Surface Sediments of the Recently Declared Nutrient-Saturated Lake Villarrica in Southern Chile.

Lake Villarrica, one of Chile's main freshwater water bodies, was recently declared a nutrient-saturated lake due to increased phosphorus (P) and nitrogen (N) levels. Although a decontamination plan based on environmental parameters is being established, it does not consider microbial parameters. Here, we conducted high-throughput DNA sequencing and quantitative polymerase chain reaction (qPCR) analyses to reveal the structure and functional properties of bacterial communities in surface sediments collected from sites with contrasting anthropogenic pressures in Lake Villarrica. Alpha diversity revealed an elevated bacterial richness and diversity in the more anthropogenized sediments. The phylum Proteobacteria, Bacteroidetes, Acidobacteria, and Actinobacteria dominated the community. The principal coordinate analysis (PCoA) and redundancy analysis (RDA) showed significant differences in bacterial communities of sampling sites. Predicted functional analysis showed that N cycling functions (e.g., nitrification and denitrification) were significant. The microbial co-occurrence networks analysis suggested Chitinophagaceae, Caldilineaceae, Planctomycetaceae, and Phycisphaerae families as keystone taxa. Bacterial functional genes related to P (phoC, phoD, and phoX) and N (nifH and nosZ) cycling were detected in all samples by qPCR. In addition, an RDA related to N and P cycling revealed that physicochemical properties and functional genes were positively correlated with several nitrite-oxidizing, ammonia-oxidizing, and N-fixing bacterial genera. Finally, denitrifying gene (nosZ) was the most significant factor influencing the topological characteristics of co-occurrence networks and bacterial interactions. Our results represent one of a few approaches to elucidate the structure and role of bacterial communities in Chilean lake sediments, which might be helpful in conservation and decontamination plans.

Semi-Analytical Approach in BiER4BP for Exploring the Stable Positioning of the Elements of a Dyson Sphere

In this study, we present a new approach with semi-analytical and numerical findings for solving equations of motion of small orbiter m, which is moving under the combined gravitational attraction of three primaries, M1, M2, and M3, in case of the bi-elliptic restricted problem of four bodies (BiER4BP), where three such primaries, M1, M2, and M3, are moving on elliptic orbits with hierarchical configuration M3 << M2 << M1 within one plane as follows: third primary body M3 is moving on elliptical orbit around second M2, and second primary M2 is moving on elliptical orbit around first M1. Our aim for constructing the aforementioned quasi-planar motion of planetoid m is obtaining its coordinates supporting its orbit in a regime of close motion to the plane of orbiting the main bodies M1, M2, and M3. Meanwhile, the system of equations of motion was successfully numerically explored with respect to the existence and stable positioning of approximate solution for a Dyson sphere. As a result, the concept of the Dyson sphere for possible orbiting variety of solar energy absorbers was transformed to the elongated Dyson space net with respect to their trajectories for the successful process of absorbing the energy from the Sun; this can be recognized as symmetry reduction. We obtain the following: (1) the solution for coordinates {x, y} is described by the simplified system of two nonlinear ordinary differential equations of second order, depending on true anomaly f; (2) the expression for coordinate z is given by an equation of Riccati-type where small orbiter that quasi-oscillates close to the fixed plane {x,y,0}.

Explorations and Analysis on Innovative Education's Hot Spots and Frontier Issues

After exploring innovative education research's current situation and frontier issues, the work utilized bibliometrics and scientific knowledge mapping methods to reveal research hotspots and development trends and study the literature published in the China Social Science Citation Index database from 2000 to 2020. The authors, research institutions, and keywords were analyzed by bibliometrics to draw the mapping knowledge domains. Results showed that there were only a few core authors in the innovative education field, with less papers published. Furthermore, a research institution group formed, including Nanjing Normal University, Zhejiang University, Huazhong University of science and technology, South China Normal University, and Beijing Normal University as the centers and other normal schools as the main bodies. In the past twenty years, innovation education research's hot spots in China mainly focused on innovation education ideas, innovation education mechanisms, innovation personnel training, teaching reforms, educates and other aspects. However, the frontier issue in the innovation education research in China refers to college and university students nowadays.

Factors influencing the financing behavior of large professional households engaged in green agricultural production in China.

Green agriculture is the direction of sustainable development of China's modern agriculture and the inherent requirement of taking the road of characteristic new agricultural modernization. As one of the main bodies of new agricultural management, professional large households are of great significance to lead the development of efficient agriculture and accelerate the development of green agricultural economy in Heilongjiang. Therefore, based on the theory of planned behavior, this article includes 275 major professional households in Heilongjiang Province as a sample of demonstration counties (cities) for green, high-quality, and efficient creation, combined with field research data and structural equation model, and discusses the willingness of large professional households to participate in green agricultural production financing and behavioral factors and mechanisms of action. The perceived behavior control (PBC), attitude toward the behavior (AB), and subjective norms (SNs) of large professional households to engage in green agricultural production determine their financing intentions (FNs), which further determines their financing behavior (FB). The results show that PBC, AB, and SN have a significant positive impact on the FN of large professional households, and further indirectly affect the FB. It should be noted that SNs have the most significant impact on the FN of large professional households to participate in green agricultural production. Therefore, it is necessary to establish effective government propaganda measures and preferential policies, improve the awareness of the importance of green agricultural production financing, and create a good social atmosphere for agricultural sustainable development and active participation in financing. The purpose of this study is to provide a reference for policymakers to formulate relevant policies to cultivate major professional households and develop green agricultural economy in Heilongjiang Province.

Optimized Chassis Stability Relative to Dynamic Terrain Profiles in a Self-Propelled Sprayer Multibody Dynamics Model

Highlights This study presented a new optimization methodology using a prismatic joint with high stiffness and damping. The virtual suspension model contained the main bodies, an optimization subsystem, and a free-floating cylinder. Under aggressive terrain, an optimized chassis platform resulted in a 19.5% increase in boom height stability. Abstract. Multibody dynamics (MBD) models are continuing to be valuable for engineering design and product development, especially regarding subsystem optimization. Most MBD optimization processes begin with a sensitivity analysis of treatment factors and levels to understand how uncertainty in model inputs can be attributed to different sources of uncertainty within model outputs; however, this study developed a new MBD methodology to automatically determine the optimized dynamic chassis suspension responses on each corner of the vehicle from a single simulation for a self-propelled sprayer model as the chosen application use-case. This technique leveraged a prismatic joint (with a high spring stiffness and damping coefficient) connected between the chassis mainframe and the simplified optimization tire to create a distance constraint that held the chassis body at a near-consistent height above the ground. Then the solver optimized the response of the chassis suspension system to maintain a stable chassis platform relative to the terrain beneath it as the vehicle traversed across dynamic terrain conditions. This optimization response was also accomplished by replacing the baseline chassis suspension components with a free-floating cylinder, which permitted the unrestricted, optimized motion needed to keep the chassis body at a near-level position with respect to the roll and pitch profiles of the terrain. For a simulation with an aggressive terrain configuration, the analysis showed that an optimized suspension system resulted in a 46% decrease in operator comfort and a 19.5% increase in overall boom height stability as the boom height control system better maintained a dynamic position closer to the specified target height. Keywords: Boom height, Chassis suspension, Multibody dynamics (MBD), Optimization, Prismatic joint, Simulation, Terrain.

Research on identifying main factors affecting building carbon reaching the peak based on DEMATEL-ISM method

This paper takes the influencing factors of peaking building carbon dioxide emissions as the research object, finds out 14 factors from 7 main bodies, including material suppliers, design units, owners, construction units, customers, governments and society and then analyzes the influencing factors of achieving the goal of carbon peak and carbon neutralization by using triangular fuzzy number, DEMATEL(Decision Making Trial and Evaluation Laboratory)and ISM (Interpreting structural models)methods. The results show that the formulation of relevant policies and regulations is the essential cause of peaking building carbon dioxide emissions; Low-carbon building materials, green logistics, green structure, low carbon energy consumption, low carbon construction party and contractor selection, low carbon operation, and low carbon technology innovation are the surface causes. The three factors that have a great impact on the target are consumer preference, formulation of relevant policies and regulations, and green building indicators. Finally, according to the research results, suggestions are put forward to achieve the goal of peaking building carbon dioxide emissions.

An Identification of Industrial Functional Zones Based on NLP: Evidence From Online Commercial Registration Data

The identification of spatial layout and functional characteristics among industrial clusters is vital to support the development of regional industries. Based on the industrial registration data of more than 330,000 companies in “The First Industrial Clusters in China,” and natural language processing methods (NLP), a set of identification framework for urban industrial functional zones is constructed by introducing commercial registration data and electronic map location data to deal with complex industrial big data, realizing the recognition of industrial spatial layout and functional characteristics of Nanshan. The results show that the industrial coverage of Nanshan is as high as 79.07%, and the wholesale and retail enterprises are its main bodies. Among the nine industrial functional zones, emerging enterprises accounted for the majority and diversified agglomeration areas were more than specialized agglomerations in capital scale and employability. Thus, in future industrial planning, maintaining a diversified industrial agglomeration, while giving more policy favor to functional zones characterized by wholesale and retail, can better stimulate consumption and promote economic development in the region.

Pt cocatalyst morphology on semiconductor nanorod photocatalysts enhances charge trapping and water reduction.

In photocatalysis, metal-semiconductor hybrid structures have been proposed for ideal photocatalytic systems. In this study, we investigate the effect of morphology and surface nature of Pt cocatalysts on photocatalytic hydrogen evolution activity in Pt-tipped CdSe nanorods. Three distinct morphologies of Pt cocatalysts were synthesized and employed as visible light photocatalysts. The rough tips exhibit the highest activity, followed by the round and cubic tips. Kinetic investigations using transient absorption spectroscopy reveal that the cubic tips exhibit lower charge-separated states feasible for reacting with water and water reduction rates due to their defectless surface facets. In contrast, the rough tips show a similar charge-separation value but a two-fold higher surface reaction rate than the round tips, resulting in a significant enhancement of hydrogen evolution. These findings highlight the importance of rational design on metal cocatalysts in addition to the main semiconductor bodies for maximizing photocatalytic activities.

Digital competition and capabilities' augmentation on international cohorts: evidence from the 'case competition 2019'

Intertwining the fields of education policy research (EPR) and educational experiment research (EER), this investigation exploits the usage of digital technologies and team-competition to test whether the phenomenon of digital competition yields a divergent (and likely more positive) impact than traditional classroom coursework, measurable on the degree of learning (criterion 1) and satisfaction (criterion 2) within a target population of international higher education students (HES). An event fashioned and simply dubbed as 'case competition', provided the context and virtual environment for a quasi-experiment which assigned participants (the experiment group) to seven teams competing to solve an industry case. Primary data obtained from the latter through an individual anonymised event's feedback-questionnaire was crossed-checked against a dataset of the overall annual students' evaluation of education quality (SEEQ) instrument; the respondents constitute the opposing control group. Results unravelled hidden benefits of endowing classroom-instruction with this off-stream approach. Furthermore, this led to the modelling of the digital competition augmented learning (DCAL) framework merging the virtues of three main bodies of educational theory: student-centric learning (SCL); problem-based learning (PBL) and technology-enhanced learning (TEL).

Integration of industrial chain and innovation chain of equipment manufacturing industry cluster

The integration of industrial chain and innovation chain of equipment manufacturing industry cluster is a benign coordination mechanism to realize complementary advantages and mutual benefit among the main bodies of equipment manufacturing industry cluster. Based on the four elements of production input, market supply, subject cooperation and achievement transformation, the integration path of the industrial chain and the innovation chain of the equipment manufacturing industrial cluster is analyzed, which provides reference for the sustainable development and innovation and upgrading of the equipment manufacturing industrial cluster.

Population status and ecology of the globally threatened moss Ditrichum plumbicola Crundw. on the Isle of Man

ABSTRACT Introduction. Ditrichum plumbicola Crundw. is a rare metallophyte that is threatened with global extinction. In this study, its population status and ecology on the Isle of Man were investigated. Methods. Surveys were carried out at all sites where the species may currently occur. Geographical coordinates of colonies were recorded using a GPS unit and counts made of occupied 1 m grid cells. Habitat and community composition were recorded by relevés. The chemical composition of occupied soil was also ascertained. Key results and conclusions. Two subpopulations of the species have occurred, associated with the two main ore bodies on the island. One of the subpopulations has become extinct. The other subpopulation comprises colonies at four nearby disused metal mines. It occurs at each in small quantity, with a total population of 47 occupied 1 m grid cells. The species is confined to open metalliferous spoil with high concentrations of lead. Solenostoma gracillimum is the only frequent associate. Management intervention to re-expose open metalliferous spoil will be required ultimately to save the species from extinction.

Thick-Anchored Dual-Layer Locking Supporting Technique in Gob-Side Entry Driving with the Narrow Pillar: A Case Study

Roadway maintenance of the gob-side entry driving with narrow pillars is a key issue that needs to be considered in underground mining. In this paper, a thick-anchored dual-layer locking (TADL) supporting technique is proposed, in which, the flexible bolt and the cable are used as the main bodies of the foundation supporting layer and the deep reinforcement layer, respectively. In the instantaneous deformation stage after excavation, TADL is applied to form a thick-anchored bearing structure in time, aiming to achieve the following effects: (1) prevent the delamination of the roadway at the initial stage of excavation, (2) avoid the reduction of the bearing capacity of the surrounding rock structure, and (3) effectively control the plastic zone development and surrounding rock deformation of roof strata. Finally, the mining conditions of gob-side entry driving with narrow pillars are selected for engineering application and verification. The results of numerical simulation and field industrial tests show that the TADL support technique can effectively control the deformation of surrounding rock and drive away tensile stress. Compared with the original support scheme, the roof displacement of the roadway is significantly reduced by more than 16% after TADL support. This study provides a reference for the stability control of roadway roofs under similar conditions.

Teaching as affective labour in a datafied world: a scoping review of the relationship between performance-based accountability and teachers’ emotions

Research has shown that in many contexts, the transformation of the public sector associated with new public management (NPM) reforms and performance-based accountability (PBA) has had profound implications for public sector workers' practices, identities and emotional experiences. Focusing on the education sector, in this paper we aim to contribute to the understanding of the relationship between PBA policies and teachers’ emotions by conducting a scoping review of the scientific literature. Our review, which is based on a final sample of 63 articles published between the years 2000-2021 obtained from the SCOPUS database, identifies two main bodies of research. The first deals with an examination of teachers’ emotions and shows how PBA is a crucial part of a changing professional environment that accentuates and/or modifies feelings and emotions already inherent to the teaching profession. The focal point of the second strand of research is the effect of PBA on teachers’ emotions; here, we identify research exploring the emotional effects of PBA, as well as the mechanisms behind different emotional experiences, how teachers deal with emotions emerging from PBA policies and a number of factors that intensify or weaken the emotional impact of PBA. On the basis of our review, limitations of existing research and gaps in the understanding of the relationship between PBA and teachers’ emotions are identified and promising lines of future research formulated.

Self-Testing of Ketone Bodies, along with Glucose, Using Touch-Based Sweat Analysis

β-Hydroxybutyrate (HB) is one of the main physiological ketone bodies that play key roles in human health and wellness. Besides their important role in diabetes ketoacidosis, ketone bodies are currently receiving tremendous attention for personal nutrition in connection to the growing popularity of oral ketone supplements. Accordingly, there are urgent needs for developing a rapid, simple, and low-cost device for frequent onsite measurements of β-hydroxybutyrate (HB), one of the main physiological ketone bodies. However, real-time profiling of dynamically changing HB concentrations is challenging and still limited to laboratory settings or to painful and invasive measurements (e.g., a commercial blood ketone meter). Herein, we address the critical need for pain-free frequent HB measurements in decentralized settings and report on a reliable noninvasive, simple, and rapid touch-based sweat HB testing and on its ability to track dynamic HB changes in secreted fingertip sweat, following the intake of commercial ketone supplements. The new touch-based HB detection method relies on an instantaneous collection of the fingertip sweat at rest on a porous poly(vinyl alcohol) (PVA) hydrogel that transports the sweat to a biocatalytic layer, composed of the β-hydroxybutyrate dehydrogenase (HBD) enzyme and its nicotinamide adenine dinucleotide (NAD+) cofactor, covering the modified screen-printed carbon working electrode. As a result, the sweat HB can be measured rapidly by the mediated oxidation reaction of the nicotinamide adenine dinucleotide (NADH) product. A personalized HB dose-response relationship is demonstrated within a group of healthy human subjects taking commercial ketone supplements, along with a correlation between the sweat and capillary blood HB levels. Furthermore, a dual disposable biosensing device, consisting of neighboring ketone and glucose enzyme electrodes on a single-strip substrate, has been developed toward the simultaneous touch-based detection of dynamically changing sweat HB and glucose levels, following the intake of ketone and glucose drinks.

The Republic of Poland in the United Nations Security Council (2018 – 2019) and the Ukrainian Question

The purpose of the paper is to highlight the activities of the representatives of the Republic of Poland in the UN Security Council in the status of a non-permanent member in 2018-2019, in particular regarding the resolving of the Russian-Ukrainian conflict. The method of content analysis of state program documents, Internet portals of the government of the Republic of Poland and the United Nations, and scientific literature was used in the implementation of the goal. The problem-chronological method made it possible to trace the history of the participation of the Republic of Poland in the UN. The methodology is based on the principles of historicism and objectivity. The scientific novelty of the research lies in the new understanding of the role of Polish diplomacy in the UN Security Council after the occupation of Crimea and the start of Russia's hybrid war in Donbas. The analysis made it possible to formulate the following conclusions. The Republic of Poland – one of the founding states of the UN – tried to be an active member of the organization, including by participating in the work of its main bodies. Poland was elected a non-permanent member of the Security Council six times. The main priorities of Polish diplomacy at the UN Security Council in 2018-2019 included: respect for international law, protection of civilians in armed conflicts, peace and security in Eastern Europe. Much attention was paid to the issue of the Russian-Ukrainian conflict, which, thanks to the Polish side, did not disappear from the body's agenda and was discussed in various contexts. The Polish delegates consistently reminded about the negative impact of the violation of international law and agreements by the Russian Federation, the situation in the occupied territories of Crimea and Donbas, and in the Black and Azov seas. They tried to present the consequences of the occupation of Crimea and the war in Donbas not only as a problem of regional security, but also as a global challenge to the international legal order. The Polish state made a significant contribution to the formation and strengthening of the international coalition in support of Ukraine in countering the aggression of the Russian Federation. An obstacle to an effective resolution of the Ukrainian issue was primarily the specificity and composition of the UN Security Council, where non-permanent members play only a limited role, and one of the permanent members is an aggressor country. The example of the debate surrounding the resolution of the Ukrainian issue once again proves the deficit of UN deep reform

The distribution of trace elements in sulfides and magnetite from the Jaguar hydrothermal nickel deposit: Exploring the link with IOA and IOCG deposits within the Carajás Mineral Province, Brazil

The Jaguar nickel deposit represents an important and unconventional discovery of hydrothermal Ni resources (58.9 Mt @ 0.95% Ni) associated with magnetite and apatite within the Carajás Mineral Province, Northern Brazil. The Jaguar deposit shares several similarities with iron oxide copper–gold (IOCG) deposits of the Carajás Mineral Province, especially regarding the structural control, and the hydrothermal alteration. Although IOCG and Kiruna-type iron oxide-apatite (IOA) deposits are closely associated in several geological provinces, this association has not yet been fully constrained in the Carajás Mineral Province. The Jaguar deposit occurs near mafic–ultramafic intrusions, along a regional fault zone, and is hosted either by granitic (northern portion) or felsic subvolcanic (southern portion) rocks. It is characterized by sub-vertical zones hosting a biotite-chlorite (Bt-Chl) hydrothermal alteration with ductile structures and disseminated sulfides (pyrite and millerite) and magnetite. These zones are overprinted by sulfide-magnetite-apatite-bearing breccias, which represent the main mineralization bodies. The sulfide assemblage in the mineralized zones is dominated by pyrite, pentlandite and millerite, with minor sphalerite and chalcopyrite.We have investigated the concentration of trace elements in the magnetite and sulfides from the host rocks, different alteration facies and the mineralization at the Jaguar deposit by LA-ICP-MS. Magnetite composition ranges from higher Al, Mn, Ti and V contents, for at least part of those in host rocks (granitic and felsic subvolcanic) and Bt-Chl alteration, into lower contents in the magnetite-apatite alteration, associated with the main Ni mineralization. Magnetite with higher Ti and V contents in host rocks is associated with discrete hydrothermal alteration pockets, have high Ni/Cr ratios and plot in high temperature hydrothermal fields in multi-element diagrams. Therefore, we support that these features are compatible with a hydrothermal origin. Anomalously high-Ni contents in magnetite point that the Neoarchean mafic–ultramafic layered intrusions of the Carajás Province represent potential Ni sources for hydrothermal remobilization. Anomalously high V contents in magnetite suggest lower fO2 conditions upon the formation of the deposit. The concentration of trace elements in magnetite associated with the Jaguar deposit is similar to those from other IOCG deposits from the Carajás Province (but with higher V and Ni contents), especially the Sossego mine in the Southern Copper Belt, indicating that it could represent a Ni-rich member of the regional-scale IOCG mineral system at Carajás. Pyrite and chalcopyrite have a composition similar to those from magmatic deposits, when using previously proposed discriminant diagrams, but this is also the case for other IOA and IOCG deposits. However, low PGE contents (Ru, Rh, Ir and Os) in pyrite from the Jaguar deposit support a hydrothermal origin. Our results highlight that the classifications provided by available discriminant diagrams are not unequivocal. We suggest that multi-element diagrams represent a complementary approach to binary plots and provide a more comprehensive classification for the use of indicator minerals.

Epidemiology of epizootic ulcerative syndrome (EUS) in fish in the main water bodies of the Kavango–Zambezi and Great Limpopo transfrontier conservation areas of Zimbabwe

A three-year study investigated the epidemiology of epizootic ulcerative syndrome (EUS) in fish from Kavango-Zambezi (KAZA) and Great Limpopo (GL) transfrontier conservation areas of Zimbabwe. A total of 38 sites comprising 27 wild fisheries and 11 aquacultures, from Mashonaland West, Matabeleland North and South, and Midlands were selected. Of the 27 wild fisheries, EUS-positive fish were detected from 9 (33.3%) and none from the 11 aquacultures. No positive cases were detected from Nile tilapia (Oreochromis niloticus) from both aquacultures and wild fisheries. A total of 9.9% (239/2423) fish from the nine positive fisheries had typical EUS lesions, and infection was confirmed in 15 species. Prevalence was significantly higher (p < 0.05) in KAZA (11.5%; 95% CI: 9.6-13.4) compared with GL (8.6%; 95% CI: 7.1-10.1). The most affected were Clarias, followed by Barbus and Oreochromis species. Most cases (>80%) were reported in winter when ambient temperature was low. Further studies are required to determine water parameters associated with EUS outbreaks. These results suggested that the African sharptooth catfish (Clarias gariepinus) could be used potentially as an indicator species for EUS surveillance programmes. Thus, implementation of surveillance and biosecurity programmes that take into consideration the epidemiology of EUS will be beneficial.

PRIORITY DIRECTIONS FOR LONG-TERM PLANNING OF NATURAL ECOSYSTEMS IN THE SUBURBAN AREA OF MINSK

An assessment of the actual organization of natural ecosystems in the suburban area of Minsk is given. Forests predominate among them. The distribution of forests shows an inverse dependence on the distance to the city. The forest cover is minimal in the 20-kilometer zone closest to the city, the fragmentation of forests, on the contrary, is the highest. This belt also accounts for the placement of most reservoirs for water management and recreational purposes. They are built on small rivers and have low resistance to external influences and high dependence on the ecological state of the catchment basins. Perspective threats to natural ecosystems caused by an increase in anthropogenic loads on them due to the formation of the Minsk urban agglomeration, as well as climate change, have been identified. They will increase the risks of developing these ecosystems, air and water pollution, forest death, natural fires, anthropogenic eutrophication of water&#x0D; bodies, etc. Priority directions for planning natural ecosystems, adequate to the long-term threats and environmental and resource needs of the city, are proposed. They include, firstly, the formation of a natural framework on their basis, the cores of&#x0D; which should be not only local specially protected natural areas, but also the main water bodies with adjacent forests, and&#x0D; secondly, the rationale for planning measures in relation to individual types natural ecosystems for various parts of the suburban area. For the part closest to the city, their preservation, ensuring interconnection and purposeful transformation are of&#x0D; priority importance, for the remote part – compliance with environmentally acceptable modes of use.