Information Capacity Research Articles

Heterogeneous-Gradient Supercell Metasurfaces for Independent Complex Amplitude Control over Multiple Diffraction Channels.

The ability to achieve independent complex amplitude control across multiple channels can significantly increase the information capacity of photonic devices. Diffraction inherently holds numerous channels, which are good candidates for dense light manipulation in angular space. However, no convenient method is currently available for attaining this. Here, a flexible interference approach utilizing silicon-based transmission-type heterogeneous-gradient supercell metasurfaces is proposed. By simply designing the phases of the meta-atoms' radiations within a supercell, the complex amplitude of each diffraction channel can be individually and analytically controlled. Crucially, the complex amplitudes of multiple diffraction channels can be simultaneously controlled in a non-interleaved manner, where the number of channels is determined by the number of effective adjusting degrees of freedom (DoF). As a proof-of-concept validation, several meta-devices are experimentally demonstrated in the terahertz regime, which can generate multiple vortex beams, focal points, and splitting beams in different desired diffraction angles. This advancement heralds a new pathway for the development of multifunctional photonic devices with enhanced channel capacity, offering significant potential for both research and practical applications in photonics.

Entropy of Neuronal Spike Patterns

Neuronal spike patterns are the fundamental units of neural communication in the brain, which is still not fully understood. Entropy measures offer a quantitative framework to assess the variability and information content of these spike patterns. By quantifying the uncertainty and informational content of neuronal patterns, entropy measures provide insights into neural coding strategies, synaptic plasticity, network dynamics, and cognitive processes. Here, we review basic entropy metrics and then we provide examples of recent advancements in using entropy as a tool to improve our understanding of neuronal processing. It focuses especially on studies on critical dynamics in neural networks and the relation of entropy to predictive coding and cortical communication. We highlight the necessity of expanding entropy measures from single neurons to encompass multi-neuronal activity patterns, as cortical circuits communicate through coordinated spatiotemporal activity patterns, called neuronal packets. We discuss how the sequential and partially stereotypical nature of neuronal packets influences the entropy of cortical communication. Stereotypy reduces entropy by enhancing reliability and predictability in neural signaling, while variability within packets increases entropy, allowing for greater information capacity. This balance between stereotypy and variability supports both robustness and flexibility in cortical information processing. We also review challenges in applying entropy to analyze such spatiotemporal neuronal spike patterns, notably, the “curse of dimensionality” in estimating entropy for high-dimensional neuronal data. Finally, we discuss strategies to overcome these challenges, including dimensionality reduction techniques, advanced entropy estimators, sparse coding schemes, and the integration of machine learning approaches. Thus, this work summarizes the most recent developments on how entropy measures contribute to our understanding of principles underlying neural coding.

Bi-functional and tri-channel image displays based on a single-size nanostructured metasurface enabled by dual-orientation-degeneracy

Benefiting from the extraordinary ability of manipulating lightwaves at the subwavelength scale, nanostructured metasurfaces are expected to achieve multifunctional and multichannel integration to expand functionality and increase information capacity. However, multifunctional and multichannel metasurfaces always consist of various anisotropic nanostructures, inevitably bringing challenges to design and fabrication. In this study, we propose a concept of dual-orientation-degeneracy containing twofold orientation degeneracy. The first-level degeneracy is a one-to-four mapping scheme between the intensity of Channel 1 and orientation angle and the second-level degeneracy refers to a one-to-two mapping between the intensity of Channel 2 and orientation angle. Additionally, we provide a minimalist design of bi-functional and tri-channel image displays based on a single-size nanostructured metasurface. The designed metasurface integrates two functionalities of nanoprinting and holography, which can generate a continuous grayscale meta-image, a binary meta-image and a phase-only holographic image. Three channel displays can be readily switched by polarization controls. More importantly, the metasurface is achieved merely by reconfiguring the orientation angles of the nanostructures with fixed geometries, relieving the structure design and fabrication burden. The presented minimalist design strategy is universal and applicable, which can contribute to advanced research and applications in ultra-compact image displays, high-dense optical storage, multi-folded optical anti-counterfeiting, etc.

Tailoring intervention targeting HPV vaccination in marginalized Roma communities in Slovakia

Abstract Background Marginalized Roma communities (MRCs) are among underserved groups facing limited access to vaccination services and presumably low HPV vaccination rates. The most significant health system barriers to HPV vaccination include financial costs, lack of appropriate information and restricted capacities of healthcare providers. Two interventions identified as promising for implementation in the context of MRCs were discussed with a variety of stakeholders and community members to tailor intervention that would be well accepted and effective to increase HPV vaccination rates in MRCs. Methods The first intervention uses health promoters - trusted and trained community members to address cultural and language barriers and serve as a vital link between healthcare providers and community members. The second multilevel intervention is providing education, navigation, and vaccine access. Initial discussions were conducted with 23 stakeholders, and follow-up discussions were held with 16 stakeholders, including representatives of healthcare professionals, schools, local authorities, and community members. Results An intervention to be implemented in Slovakia focuses on the use of Roma health mediators who will provide parents and vaccine-eligible children (12-14 years old) from MRCs with information on HPV and HPV vaccination, invite them to educational sessions organized in community centres and at schools and navigate them through the vaccination process. The intervention also combines components such as videos and discussions with healthcare professionals, aligning with the needs and wishes of the target group. Conclusions This intervention will help to deliver reliable and understandable information on vaccination and enable people from MRCs to make informed decisions about vaccination. Roma health mediators will take the burden of providing information from overloaded healthcare providers and navigate community members through the vaccination process.

Study tours as strategy in building multi-level public health system transformation in Ukraine (UA)

Abstract With 14 million Ukrainians in need of psychological aid (UNDP) and a strained health system, UA urgently requires mental health and psychological support services (MHPSS). As a TA partner on the USAID funded Public Health System Recovery and Resilience project in UA, the Philadelphia (PHL) team supports capacity building for population-based MHPSS at the community level with a study tour strategy. Such approaches apply to other countries interested in remodeling public health systems. The strategy aims to advance community based MHPSS through in person tours in PHL with remote follow up to stimulate vision, exchange ideas and accelerate action among governmental, community, and academic partners. The study tours presented overviews on health policy, system development, program services delivered to children and adults, community interventions, and workforce development of professionals and paraprofessionals. All included the foundational principles of trauma-informed practice. The June 2023 tour hosted 11 decision makers and regional officials who embraced the vision for system development and endorsed further engagement. The December 2023 tour hosted 13 practitioners and coordinators of health and social services to observe community programs. Results include development of PHL NGOs and UA social service hub partnerships to implement train the trainer programs for peers/people with lived experience and for mural arts programs to promote community engagement and empowerment. The September 2024 tour involves university partners from nursing, social work and psychology and PHL counterparts to strengthen curricula to include mental health competencies, support faculty development with potential for collaborative research and student exchange, and design post-graduate continuing education courses for upskilling the incumbent workforce. Study tours and direct exchange are an effective strategy for capacity building for MHPSS in Ukraine to address population health needs. Key messages • The sequenced study tour strategy affects distinct levels of change makers in UA. The results are governmental buy-in, partnerships for programmatic development, and academic advancement. • The study tour model promotes systematic change and offers solutions to MHPSS workforce shortages through information exchange, relationship building, and capacity development.

The potential benefits of regionally differentiated Covid-19 policies

Abstract While many countries introduced regionally differentiated policy measures for Covid-19, such as social distancing, lockdowns and working from home, the Netherlands opted for national binding policies already in the early stages of the pandemic. Using detailed data on the impacts of the first lockdown on consumers’ and producers’ behaviour, as well as scenarios varying on intensities of measures, we show that regional differentiated policies could have mitigated a significant part of the losses in production resulting from the Covid-19 measures. The self-organizing capacities of the regional economic system fuel this mitigation, with regional variation in policies being a sufficient precondition. Coordinated and explicitly planned policies aimed at supporting specific region-industry clusters may further mitigate impacts but are difficult to achieve due to the number (wickedness) of possible policy options. It would also assume full information and coordination capacities in governance that are not present. The results of our analysis hold important implications for future mitigation strategies for pandemics or other regional shocks.

A Flexible Smart Healthcare Platform Conjugated with Artificial Epidermis Assembled by Three-Dimensionally Conductive MOF Network for Gas and Pressure Sensing

The rising flexible and intelligent electronics greatly facilitate the noninvasive and timely tracking of physiological information in telemedicine healthcare. Meticulously building bionic-sensitive moieties is vital for designing efficient electronic skin with advanced cognitive functionalities to pluralistically capture external stimuli. However, realistic mimesis, both in the skin’s three-dimensional interlocked hierarchical structures and synchronous encoding multistimuli information capacities, remains a challenging yet vital need for simplifying the design of flexible logic circuits. Herein, we construct an artificial epidermal device by in situ growing Cu3(HHTP)2 particles onto the hollow spherical Ti3C2Tx surface, aiming to concurrently emulate the spinous and granular layers of the skin’s epidermis. The bionic Ti3C2Tx@Cu3(HHTP)2 exhibits independent NO2 and pressure response, as well as novel functionalities such as acoustic signature perception and Morse code-encrypted message communication. Ultimately, a wearable alarming system with a mobile application terminal is self-developed by integrating the bimodular senor into flexible printed circuits. This system can assess risk factors related with asthmatic, such as stimulation of external NO2 gas, abnormal expiratory behavior and exertion degrees of fingers, achieving a recognition accuracy of 97.6% as assisted by a machine learning algorithm. Our work provides a feasible routine to develop intelligent multifunctional healthcare equipment for burgeoning transformative telemedicine diagnosis.

Blockchain for video watermarking: An enhanced copyright protection approach for video forensics based on perceptual hash function.

As a direct result of advancements in digital technology and the Internet, the copyright protection and information integrity of multimedia that are being published across the Internet have emerged as a major and urgent issue that needs to be addressed. The technique of digital watermarking may be used to protect intellectual property. In terms of authentication, resilience, storage, and capacity of digital watermarking information, there is still room for development. Blockchain's potential in video copyright protection and management applications has motivated researchers. Copyright owners and consumers may now communicate directly via copyright protection apps built on the blockchain, eliminating the need for distributers and the associated fees. Nonetheless, the current blockchain-based video watermarking solutions require storing a significant number of coordinates depending on the watermark size and are susceptible to video frame attacks on the video frame texture region. This study proposes an enhanced video copyright management approach that incorporates digital watermarking, the blockchain, and a perceptual hash function. Watermark information is stored on a blockchain structure, which also acts as a timestamp for verification purposes. To verify watermark data without the source video, a perceptual hash function is employed to compute a hash value based on the structural information of video frames. The contribution is in learning how to extract a hash function from a small number of video frames that still adequately represent a large amount of video content while also reducing the number of unnecessary video frames and the amount of computation required to summarize and index that content in a blockchain. This expedites the dissemination of copyrighted works and increases their security and readability, hence facilitating their circulation on the Internet. Our experimental results demonstrate that this approach is memory efficient, as it only needs to store one key for each key frame, regardless of the size of the watermark. Additionally, the overall robustness is greatly improved by using the blockchain's random hash function. Therefore, new and important advancements in video watermarking have been realized because of this effort.

Effect of Visual Images on Digital Communication: Empirical Research Review

As mobile messengers gain popularity, visual images affect digital communication, leading to new interaction patterns. This review sums up scientific experience in describing digital communication facilitated by emoji and memes. The review covered scientific articles that reported empirical research on visual communication in digital environment in such open research databases as CyberLeninka, PubMed, Google Scholar, eLibrary, and ResearchGate in 2019–2024. The current rise in visual communication tools seems to reflect the general visual shift in modern culture, associated with the changes in human psychology brought about by total digitalization. Visual communication tools have a high information capacity, which hinders their interpretation, thus modifying the complex of individual and socio-psychological characteristics of interlocutors in an attempt to ensure mutual understanding. The review can be used to improve digital communication that employs alternative communication tools.

Ensuring compliance with Antarctic environmental protection through inspections: Problems and prospects

Environmental protection occupies an increasingly important place in Antarctic governance, but compliance mechanisms for Antarctic environmental protection have received little attention compared to multilateral environmental agreements. Antarctic inspection is an important tool for ensuring compliance by States Parties. However, it has been shown that inspection is mostly used as a means of information exchange and capacity building, while its monitoring role tends to be undermined. Based on empirical analysis, this paper identifies the outstanding issues in existing inspection practices, and proposes specific measures for improvement. It also explores the possibility of establishing an independent inspection body to complement existing inspections undertaken by Consultative Parties, with a view to fully utilizing its monitoring role as part of compliance mechanisms for the Antarctic environment.

«ОПТИКА» БӨЛІМІ БОЙЫНША ЭЛЕКТРОНДЫҚ ОҚУЛЫҚТАРДЫҢ ЗАМАНУИ БІЛІМ БЕРУ ҚҰРАЛЫ РЕТІНДЕ РӨЛІ

The article examines the effectiveness and role of the use of electronic textbooks in the education system. And, including in the section «Optics», optical phenomena and patterns are taken as a basis. The creation of electronic textbooks is one of the most pressing problems of the educational process today. The expansion of the use of modern information technologies has led to the need to develop electronic learning tools that increase the effectiveness of self-learning and the quality of learning for students. The use of electronic means in the learning process is effective for both the teacher and the student. The use of electronic learning tools in the educational process does not contradict the traditional teaching method, but rather complements the use of its achievements. Comparison parameters are also considered: page and rotation; reader's movement through the book; plane and depth; book block; personal appearance of the book; text; illustration; tactile sensations; reliability of information storage and accessible information update; one can say about the pros and cons of this and other types of books. The advantages of an electronic textbook in terms of printing are accompanied only by sound effects associated with its large information capacity and ease of use. With all the convenience of the e-book format, the reader may want to see it directly on the site if he does not want to download it, or, as in a bookstore, first view the publication and then decide whether to download it or not. The main disadvantages of the electronic textbook are due to its loss of personal artistic appearance. Currently, there are many tools for creating electronic textbooks. For example, the possibilities of the program SunRav BookEditor, SunRav BookReader, TurboSite, Flipsnack, EdApp, Canva, etc. are considered. In the article, we will define the role of analyzing the digital literacy of students using an electronic textbook. Examples of electronic forms of a physics textbook for grades 7-9 can be given.

Regularity through randomness: Bioinspired quasi-amorphous photonic structures for multilevel information encryption

The biological world has produced a wealth of complex photonic materials offering abundant design inspirations. However, creating these intricate photonic structures intertwining order, disorder, and hierarchical arrangements remains challenging. Achieving this necessitates nano-fabrication technologies capable of integrating intended macroscopic properties while accommodating microscopic variability or randomness, akin to the operational principles observed in biological organisms. Here, we present quasi-amorphous photonic structure (QAPS) patterns with regulated sophisticated visual effects through hierarchically distributions of photonic elements with engineered randomness. Enabled by an infiltration-assisted (IFAST) inkjet printing method, the visual appearances of QAPS patterns are precisely controlled by collective harnessing of nanoscale resonant scattering of colloids, mesoscale interferences, and macroscale light transporting. The QAPS patterns exhibit isotropic diffuse colors, unprecedented iridescence and enable multichannel encrypted information that can be selectively identified using specific filters at particular specular illumination angles. Additionally, the intricate infiltration fields confer high adjustability in colloidal assembly, offering sophisticated packing geometries and color distributions at the microscale, which can serve as physical unclonable security features. The exceptional structural complexity and optical versatility of QAPSs enable the integration of multilevel security features within a single system, providing a promising roadmap to achieve larger information capacity, multichannel cryptography, and enhanced encryption levels.

Medication Self-Management for Home Care Users Receiving Multidose Drug Dispensing: Qualitative Interview Study.

Multidose drug dispensing (MDD) is an adherence aid where medicines are machine-dispensed in disposable unit bags, usually for a 14-day period. MDD replaces manually filled dosettes in many home care services in Norway. While evidence suggests that MDD can improve medication adherence and reduce errors, there are few studies on how patients manage MDD at home and how this affects their daily routines. The aim of the study is to identify factors influencing medication self-management behavior among MDD users living at home and explore how MDD affects medication self-management. We conducted semistructured interviews with 19 MDD users in Oslo between August 2019 and February 2020. The interviews were held at the participants' homes, and the interview transcripts were analyzed thematically. All participants in the study received some form of assistance with medication management from home care services. This assistance ranged from MDD delivery every other week to actual assistance with medication administration multiple times daily. However, regardless of the level of assistance received, participants primarily managed their MDD medications themselves. Daily medication routines and knowledge about medicines varied among the participants, with some taking an active role in their medication management, while others relied on others to take responsibility. The degree of involvement seemed determined by motivation rather than capability. MDD can support medication self-management, but its effectiveness varies among patients. The level of medication management by MDD users is not solely determined by their actual capabilities. Factors such as interest in self-care and independence, available support, information, and cognitive capacity all play a role in determining the degree of autonomy.

Renyi Type Holographic Dark Energy

Dark energy is one of the prominent mysteries of the universe that still awaits a solution. One of the plausible ways to collect data about any formation or understand its information capacity is to investigate the entropy of that formation. In this study, Renyi Holographic Dark Energy (RHDE) matter distribution is analyzed within the framework of General Relativity Theory, considering homogeneous and isotropic Friedmann-Robertson-Walker (FRW) space-time. Hubble parameter and RHDE density were used to obtain exact solutions of Einstein field equations. The analysis of the obtained solutions was performed by drawing evolution graphs for redshift $z$.

Wavelength-multiplexed orbital angular momentum meta-holography

AbstractThe field of high-bandwidth holography has been extensively studied over the past decade. Orbital angular momentum (OAM) holography, which utilizes vortex beams with theoretically unbounded OAM modes as information carriers, showcases the large capacitance of hologram storage. However, OAM holography has been limited to a single wavelength, restricting its potential for full-color holography and displays. In this study, we propose wavelength and OAM multiplexed holography that utilizes the multiple dimensions of light—wavelength and OAM—to provide a multi-color platform that expands the information capacity of holographic storage devices. The proposed wavelength-OAM multiplexed holography is physically realized by a metasurface, the state-of-the-art optical element consisting of an array of artificially engineered nanostructures. Hydrogenated silicon meta-atoms, the constituents of the metasurface, are engineered to possess wavelength selectivity by tailoring the dispersion of polarization conversion. These meta-atoms are used to encode the calculated OAM-preserved phase maps based on our design. The sampling grid of the phase map is rotated by 45°, which effectively suppress higher-order diffraction, providing a great strategy for achieving large field-of-view (FOV) holography. We successfully demonstrate six holographic images that are selectively reconstructed under the illumination of light with specific wavelengths (λ = 450, 635 nm) and topological charges (l = -2, 0, 2), without high-order diffraction. Our work suggests that ultrathin meta-holograms can potentially realize ultrahigh-bandwidth full-color holography and holographic video displays with large FOV.

Precisely regulation of photochromism via absorption-induced photoreaction attenuation and light intensity dependence for time-resolved asymmetric encryption

With the growing need for secure information storage, encryption materials are required to be designed with high information capacity, easy to prepare, and hard to decode. Here, donor–acceptor Stenhouse adducts (DASAs), known for their straightforward synthesis, are used to develop a new time-resolved asymmetric encryption strategy, enhancing information capacity. The photoswitching property of DASAs is regulated by the intensity of initial absorbance and the intensity of light irritation. Besides, we recognize the relationship between the intensity of initial absorbance and photoswitching rate constant is caused by the absorption-induced photoreaction attenuation (AIPA). By rationally regulating the photo-bleching time of DASAs, the information can be sequentially revealed (colored state) or concealed (bleached state) in the desired temporal order. As a result, a quick response (QR) code label for practical application and a multi-level encoding scheme for sophisticated asymmetric encryption have been proposed. Specifically, the advanced asymmetric encryption technique employs layer sequence and light intensity as private keys, diverging from traditional public key systems. Information is sequentially displayed over time. The accurate information can only be revealed at the correct temporal dimension (layer sequence) and the appropriate decoding parameter (light intensity), both of which are precisely controlled by AIPA. This study not only unveils an approach to time-resolved asymmetric encryption using DASAs, enhancing the security and capacity of information storage, but also paves the way for the development of high-security encryption materials that are both highly efficient and resistant to unauthorized decoding efforts.

The role of hydropower in decarbonisation scenarios

An increased penetration of renewable energy sources is essential for the energy transition. A major role will be played by wind and solar, as they are widely available. Hydropower is another crucial resource, currently covering large shares of power generation (e.g., Norway, Italy, Brazil). Despite little expected growth, in a context of increasing electrification, improved integration of hydropower can play a critical role thanks to programmable operation. This work addresses the modelling of hydropower flexibility in energy system models and analyses the impact of hydropower operation on CO2 emission-constrained scenarios. To implement the study, a detailed dataset of the Italian programmable hydroelectric plants is created, using open-source information, covering location, rated power, and storage capacity. Inflow timeseries are derived from historical operational data. These new sets of data are employed in OMNI-ES (a multi-node, multi-sector, and multi-vector energy system model) to study optimal configurations and operation of the Italian energy system in decarbonisation scenarios, such as net-zero-CO2 and Fit-for-55 targets. Considering different operational strategies and multiple historical reference years (impacting the inflow), results demonstrate significant changes in hydropower behaviour and highlight its relevance as zero-carbon resource in terms of both power and energy output, influencing the installation of other technologies.

Impaired somatosensory habituation in older adults with chronic pain during an affective oddball task.

Chronic pain is one of the most common health conditions among older adults, triggering various disruptions in information processing across attentional, emotional, and somatosensory domains. However, there is insufficient information about how these aspects interact and their potential contribution to the vulnerability of older adults to chronic pain. This study aimed to investigate potential alterations induced by chronic pain during aging in attentional aspects of tactile stimulation and to observe the influence of affective context. Twenty-six older adults with chronic pain (70.00 ± 5.07 years; 11 males), 28 pain-free older adults (69.57 ± 3.96 years; 13 males) and 27 healthy younger adults (21.48 ± 1.80 years; 14 males) participated in the study. We compared the somatosensory evoked potentials elicited by frequent and deviant stimulation (probability 14%) applied when participants were viewing blocks of pleasant, unpleasant, and neutral images from the International Affective Picture System. During frequent stimulation, older adults with chronic pain showed higher P50 and N100 amplitudes compared to pain-free older adults and younger individuals. Furthermore, the older group with pain exhibited higher P300 amplitude during emotional contexts compared to neutral scenarios. During deviant stimulation, older adults with chronic pain exhibited higher P50 and N100 amplitudes compared to pain-free older adults but displayed typical age-related flattening during P300. These findings indicate that chronic pain leads to a decline in the ability to habituate to non-painful irrelevant somatosensory stimuli, especially when it is presented in an emotional context. In the present study, we have observed how older individuals suffering from chronic pain exhibit a decline in the habituation capacity of irrelevant somatosensory information. Furthermore, we have observed how the affective context in which these individuals are situated leads to an exacerbation of this deficit. Enhancing our comprehension of how aging and chronic pain interact to impact somatosensory processing could facilitate the tailoring of novel intervention strategies.

Optimising Text Steganography with Alpha-Based Representative Binary: Analysing Contain Letter Used and Capacity Ratio

Text steganography has become essential for secure communication in the digital age, offering a method to hide messages within seemingly ordinary text. This paper introduces the Alpha-based Representative Binary technique, an advanced feature-based method for text steganography. It utilizes both capital and small letters to represent 2-bit binary values, embedding more information without altering the visual integrity of the text. By assigning different binary values to uppercase and lowercase letters, this technique optimizes the balance between information density and detectability. Embedding 2-bit values strikes an ideal balance, as it allows for a higher capacity of hidden information while maintaining a low profile. This study evaluates the performance of the Alpha-based Representative Binary technique against existing methods like QUAD and One-Flow-2-bit, focusing on two metrics performance: the total character count in the stego text (contain letter used) and the amount of data that can be embedded relative to the cover text size (capacity ratio). The findings underscore the technique's strengths in maintaining secure and undetectable hidden messages within text. This paper highlights the evolution and effectiveness of feature-based methods, emphasizing the need for continued innovation to address detection risks and content modification challenges. By providing a detailed analysis and potential improvements, this paper aims to contribute to the development of more robust and undetectable text steganography systems. The perceptions gained from this paper is expected as valuable for researchers and practitioners in the field of secure communication.

The use of a clinical calculator to determine the rate of development of chronic kidney disease in elderly patients with type 2 diabetes mellitus

Aim – to develop an applied prognostic calculator for the rate of progression of CKD in elderly patients with type 2 diabetes, which makes it possible to identify a group of high rate of GFR reduction in conditions of routine outpatient admission. Material and methods. 69 clinical indicators were studied, the interrelationships and significance of differences in parameters in the groups identified according to the original diagnostic parameter, the glomerular filtration rate reduction index with a threshold value of 3.83 ml/min/1.73 m2 per year, above which the rate of progression of CKD was considered high. Results. By using regression analysis, significant factors for the prognostic calculator were identified: the duration of diabetes and insulin therapy, concomitant diagnosis of obesity, pulse in the ankle artery, severe stage of polyneuropathy, risk group IV of hypertension, treatment with sulfonylureas, the number of antihypertensive drugs taken. When evaluating the information capacity and predictive ability of the calculator, the area under the AUC ROC curve was 0.89 (0.80; 0.99) p 0.001, which characterizes the quality of the diagnostic technique as high. Conclusion. The presented calculator gives the doctor the opportunity to identify a group of patients with the risk of rapid progression of CKD directly on an outpatient basis.