Operational Style Research Articles

Chichimene field T2 sand: a successful application of cycles in a water injection project on heavy crude oil, enabled by a novel smart selective completion system adapted for water injection

This paper presents the application of injection in cycles, assisted by the first smart selective completion system with remote valve operation. The completion system was installed in the Chichimene Field unit T2 (Fm. San Fernando). The results were compared with conventional water injection, technology that utilizes a simple selective completion system, in the aspects of recovery factor, water consumption, operation style, and others. The target unit has been subjected to selective water injection since 2016, this process consisted of injection of a controlled amount of water within 3-4 zones in equilibrium with the extractive system on producers wells to find a better crude oil movement and a commercial recovery factor. Despite this, the surveillance evidence suggests that some zones consume too much water due its high permeability (heterogeneity) and this impacts on high water cut on producers due to the (adverse mobility ratio), but also suggested that there is a better way to improve even more the recovery factor. This enhancement was enabled with a smart selective completion system by promoting a scheduled temporal closure of zones while production continues, achieving pressure-production restoration effects on the closed zones, allowing an efficiency increase of the vertical and areal sweep. To determine if this could work, a smart completion system was installed in one well in August 2019. During more than one year, the operation and interpretation of the DAS measuring tool (Continuous sound recording) was understood, from which injected water per zone is daily known, with this, the optimization of the injection rate per zone allowed enhancement of the production pattern behaviour. In February 2021, the injection cycles started on the well by zone, and to the current date, more than 25 monthly cycles have been done, increasing the recovery factor, with a considerable reduction in water and energy consumption, maintaining a continuous measurement of zone injection, this level of information has never been reached in the industry. The case study establishes a new frontier in the field of selective injection and in cycles as well, allowing an evolution step in water injection technology. This pilot combined in one design: selective injection, intelligent remote operate completions, continuous layer injection measuring by DAS, extra heavy oil WF, management of high permeability variations and it is aligned with the latest regulations in decarbonization (water and energy saving). From a reservoir point of view, it has never been there, a surveillance in injectors with this level of quality to enhance performance, and on the surface, this technology has allowed an important reduction in the use of wirelines for well operations and improve some well cleaning interventions with coiled tubing.

Impact of Haptic Feedback in High Latency Teleoperation for Space Applications

Remote manipulation is a key enabler for upcoming space activities such as in-orbit servicing and manufacture (IOSM). However, due to the large distances involved, these systems encounter unavoidable signal delays which can lead to poor performance and users adopting a disjointed, ‘move-and-wait’ style of operation. We use a robot arm teleoperated with a haptic controller to test the impact of haptic feedback on delayed (up to 2.6 s: Earth-Moon communications) teleoperation performance for two example IOSM-style tasks. This user study showed that increased latency reduced performance in all of metrics recorded. In real-time teleoperation, haptic feedback showed improvements in success rate, accuracy, contact force, velocity, and trust, but, of these, only the improvements to contact forces and moving velocity were also seen at higher latencies. Accuracy and trust improvements were lost, or even reversed, at higher latencies. Results varied between the two tasks, highlighting the need for further research into the range of task types to be encountered in teleoperated space activities. This study also provides a framework by which to explore how features other than haptic feedback can impact both performance and trust in delayed teleoperation.

Impacts of Flight Operations on the Risk of Runway Excursions

The Quick Access Recorder (QAR), as an onboard device used for monitoring and recording flight parameters, has been extensively installed on various types of aircraft. Recently, there has been a significant focus on studying the typical flight safety event of runway excursions based on QAR data. However, there is limited research that combines the analysis of runway excursion risks with flight operations, and there is also a scarcity of studies that divide the investigation of the landing phase into multiple key stages. In this paper, we propose a comparative analysis of operational characteristics and risks associated with runway excursions from the perspective of operational styles. A total of 2087 flights were classified on the basis of touchdown distance, taxiing distance, and magnetic heading changes and were divided into three styles based on these indicators. Subsequently, we analyze flight operations and attitudes at five key stages: runway threshold, flare, speed brake deployment, touchdown, and reverse thrust activation. Furthermore, we employ the selection criteria of pilot proficiency levels to filter out standard operational curves. The curve similarity is used to compare the difference between the actual operating curves and the standard curves. Finally, we employ typical correlation analysis to explore the relationship between touchdown distance and operational variances. The findings indicate that Style 1 pilots exhibit the lowest probability of runway excursions, yet their maneuvers potentially elevate the risk of hard landing events.

Trends of the tuberculosis epidemical situation during and after the COVID-19 pandemic: Russia and the northwestern federal district, 2020–2023

The dynamics of TB incidence and mortality is an important tool for assessing epidemiological well-being. Monitoring of a number of key indicators has shown that the COVID-19 pandemic has made serious adjustments to the current style and methods of operation of the TB care system. There is a point of view that this is a natural result of restrictive measures taken to combat the pandemic — an airborne disease, including a decrease in the active detection of tuberculosis cases. Therefore, it seemed relevant to us to study the dynamics of the main indicators characterizing both the epidemic situation with tuberculosis in Russia and the effectiveness of the measures taken to detect tuberculosis from 2010 to 2023, as well as to assess the possibility of achieving the targets of the End TB strategy. Methods. The dynamics of the number of TB incident cases and the number of HIV-negative TB deaths in 2010–2023 relative to the number of these cases were analyzed according to the results of regression analysis, based on 2010–2019 data. Results.It was noted that the COVID-19 pandemic did not lead to a significant increase in the number of deaths from tuberculosis, but contributed to an increase in the number of cases of postmortem detection and early (before 1 year of observation) TB deaths of new tuberculosis cases. During the pandemic, there was a decrease in the number of incident cases of tuberculosis, an increase in the proportion of new TB cases with destructive, including fibro-cavernous tuberculosis. The impact of migration processes associated with the special military operation on the incidence of tuberculosis was small. Conclusion.The technique, which involves the use of regression analysis, makes it possible to clarify details of processes associated with the epidemiology of tuberculosis with greater accuracy. The COVID-19 pandemic did not have a significant impact on the dynamics of the number of deaths from tuberculosis, but it did affect the detection rates of tuberculosis patients. In general, in Russia and the Northwestern Federal District, the goals of the End TB strategy, which envisage a decrease in the number of TB incidents, are expected to be achieved. Achieving the indicator stipulating a decrease in the number of deaths from tuberculosis is more likely in the Northwestern Federal District, and less likely in Russia as a whole

Blended individual and group CBT for OCD in adolescents: model description and a feasibility study

Abstract Cognitive-behavioural treatment for obsessive-compulsive disorder (OCD) is effective across the lifespan but is not widely available across the range of services. Delivering CBT as a blended treatment combining individual and group-based treatment with flexible parental involvement, adapted to the operational style of any particular service, is a promising option which we aimed to examine in OCD with adolescent samples. In a young people’s service based in a University Hospital, we evaluated the impact of a blended treatment combined with flexible parental involvement with adolescents (age 14–18 years of age). The CBT model used with OCD sufferers was a formulation driven approach, emphasising the importance of providing an alternative account linked to the way responsibility beliefs lead to compulsive behaviour. Six consecutively referred adolescents with their parents participated in a treatment group. Intervention consisted of eight individual meetings, eight group meetings and two meetings with parents. Five of six adolescents carried out the whole intervention. Of all participants, 5/5 scored in the clinical range for OCD at baseline, and 5/5 were no longer in the clinical range by the end of treatment; 5/5 were in the clinical range on general psychiatric problems at baseline, and 4/5 were rated as recovered at the end of treatment. Comparable changes were noted in measures of responsibility linked to intrusive thoughts. Use of a blended individual/group treatment based on a CBT model is feasible, with the results obtained being consistent with previous work on individual CBT treatment. Key learning aims (1) Delivering CBT to adolescents with OCD as a blended treatment combining individual and group-based treatment with flexible parental involvement is a promising option which merits further evaluation. (2) OCD symptoms and general psychiatric symptoms were reduced during and after treatment. (3) Use of a blended treatment based on a CBT model is feasible.

Beyond the Battlefield: the Impact of United Nations and African-Led Peacekeeping on Enhancing Capabilities of African Armies

Abstract The character of conflicts across Africa has evolved, necessitating the United Nations Peacekeeping Operations (UN pko), African-led Peace Support Operations (pso) and African states to adapt their approach to dealing with emerging insecurities. As a response, African states have deployed their armies to UN pko, African-led pso s and other peace operations to not only support these missions’ objectives and receive training for their forces but also to develop security and military capacities to deal with emerging and existing threats. Drawing on the cases of Chad and Ghana, the paper explores the formation of the respective armies, their influence on their political systems and how the respective armies have been influenced by their participation in peacekeeping operations. The analysis finds that despite being under-equipped and working in challenging environments. Both forces influence and shape the mission’s tempo and style of operations by adapting to regional challenges, which is a consequence of the historical and strategic style of the respective militaries but are also capitalised on by the UN pko and African-led pso. Finally, the paper finds that dissimilar environments where the armies are deployed contribute to shaping and supporting both armies’ evolution, increasing their overall agency and legitimacy in peacekeeping.

Some Reflections on the Hartford Institute at Forty

The presentation was prepared for a celebration of the 40th anniversary of the Hartford Institute for Religion Research. It asks why a traditional theological school would include social science research as a centerpiece of “reinvention” in 1972. I argue that the former Hartford Seminary Foundation mission was grounded in its inclusive ecumenical theological vision and its operative style in partnership with local, national, and international partner movements (international mission, religious education, theological education, and social service or activism). In retrospect, the Hartford Institute embodies major Hartford emphases of the previous century.

Liquid Metal Smart Materials toward Soft Robotics

Unlike conventional rigid machines, soft robots generally have unique operation styles that rely heavily on soft matter engineering and smart material systems. Owing to the superior merits of both metals and fluids, liquid metal smart materials are increasingly being innovatively used as soft actuators and sensors to construct soft robots. To promote further development and prosperity in this field, this review organizes and summarizes the typical progress in liquid metal smart materials, with a special focus on their robotic response behaviors. In particular, the article emphasizes the concept of smart composite systems consisting of liquid metals and synergistic substances (e.g., solutions, particles, and polymers). The response behaviors of liquid metal smart materials under the actions of external factors (electricity, magnetism, ultrasound, light, heat, etc.) are examined and the smart properties occurring during these responses, such as motion, transformation, self‐organization, adaptive healing, and autonomous sensing, are identified. Furthermore, soft actuators, control systems, and robots based on liquid metal smart materials are summarized and elaborated upon. Finally, the potential directions worth pursuing and challenges are outlined. It is expected that this review will stimulate further investigations into liquid metal smart materials with the aim of building a new generation of soft robots.

Evaluation and Optimization of a Command and Control System Based on Complex Networks Theory

With the rapid development of information technology, network-centric warfare (NCW) has become the main operational style now and even in the future, and the destruction resistance of networks has become one of the most important issues in the field. Based on the complex networks theory, the command and control (C2) network is constructed, and the topology characteristics of the network are analyzed. Aiming at the deliberate attack and random attack, the destruction resistance of C2 network is analyzed and optimized. The simulation results show that the C2 network conforms to the small-world and free-scale characteristics, and it is sensitive to deliberate attack. The strategy of low-degree edge addition can be adopted, that is, by expanding the horizontal contact between the same layer of combat entities and increasing the cross-layer contact between the different layers, the destruction resistance of C2 network can be effectively enhanced. The simulation results have a certain theoretical significance for the establishment of the C2 network and the optimization of destruction resistance of C2 network.

Managing strategic inventory under retailer competition

Besides carrying the operational inventory, retailers may invest in the strategic inventory for obtaining the discount of future wholesale price, although this behavior can induce the holding cost. In this paper, we adopt a game theoretical method to check the role of strategic inventory under the retailer-to-retailer competition. The impact of strategic inventory on a two-tier supply chain model is investigated under the retailer competition. A supplier sells products to customers through two competing retailers who may choose to carry the strategic inventory in a two-period setting. The results indicate that the retailer-to-retailer competition may affect the decisions of supply chain parties about the strategic inventory and pricing as follows. First, the competition weakens the incentives of retailers in holding the strategic inventory. Second, the lower inventory holding expense would still stimulate retailers to hold the strategic inventory for more profits. Third, facing two competing and asymmetric retailers, the prisoner's dilemma and chicken game equilibrium may occur between the two retailers when the inventory holding cost is intermediate under the uniform wholesale price strategy. However, under the differentiated wholesale price strategy, the prisoner's dilemma and chicken game equilibrium can be eliminated. For similar operational styles including store styles and locations, retailers can break through the dilemma by simultaneously holding the strategic inventory, and can obtain more profits from carrying strategic inventory under differentiated wholesale price strategy. Therefore, the differentiated wholesale price strategy can promote the two retailers to cooperate with each other and can benefit all parties.

Moral and psychological foundations of the special military operation in Ukraine and the criminal liability of Ukrainian Neo-Nazis for crimes against the peace and security of mankind

In the article, using the methodology of system analysis an integrated approach using the ethical concepts of good and evil and other categories of general and professional ethics, the moral and psychological foundations of the special military operation in Ukraine and the criminal liability of Ukrainian neo-Nazis, their NATO accomplices for crimes against the peace and security of mankind are considered. By implementing this special military operation, Russia is acting on the side of Good, as evidenced by the humanistic orientation of this method of warfare to protect people from genocide and other crimes against the peace and security of mankind committed by the neo-Nazi Kiev political regime acting on the side of world evil and its Western allies - NATO countries led by the United States of America, arming Ukrainian neo-Nazis and their Western mercenaries with modern lethal weapons. The fact that Russia is acting on the side of Good and not evil in this armed struggle is also evidenced by the humane style of this special operation, during which Russian servicemen show not only humanism, but also patriotism, courage, courage and heroism. For our servicemen acting on the side of Good, these high moral and psychological qualities in extreme situations of a special military operation are manifested in inseparable unity with noble rage and reasonable determination, which in a combat situation act as a kind of spiritual catalysts that ensure the manifestation of genuine courage, courage, heroism and patriotism in the behavior of sane people.

Analog Sensor Interface for Field Mill Sensors in Atmospheric Applications

An overview of the electric field mill sensor specifications in applications related to the measurement of the atmospheric electric field was conducted. The different design approaches of the field mill sensor interface are presented and analyzed, while the sensitivity-related parameters of a field mill are discussed. The design of a non-complex analog sensor interface that can be employed for the measurement of the electric field in both fair and foul weather conditions, such as thunderstorms, is implemented using discrete components for experimental validation and is optimized in an integrated version in terms of noise and power consumption. Advanced noise simulations are conducted in a 180 nm CMOS process (XH018 XFAB). The energy-autonomous operation of the sensor for extended periods of time is made feasible due to the low power consumption of the front-end circuitry (165 μW at 3 V) as well as the proposed intermittent style of operation of the motor. The total sensing system is low power, and its realization is simple and cost-effective, while also offering adequate sensitivity (45 mV/kV/m), making it comparable to the existing works.

Correction of presbyopia.

Presbyopia, a progressive visual difficulty caused by weakened physiological regulation, is one of the main causes of visual impairment in people over 40 years old. Currently, the main methods of correction of presbyopia include optical correction, surgical correction, and drug treatment, which can improve the visual nearness disorder to some extent. Optical correction is the most common way with advantages of safety, which can adjust the lens parameters at any time, while cause kinds of inconvenience in life by wearing and taking off glasses frequently. Surgical intervention, including corneal surgery, lens surgery and scleral surgery, with certain advantages and disadvantages in each operation style. New pharmaceutical agents are expected to be a new and effective method for the treatment of presbyopia, but it lacks multicenter randomized controlled trials and evidence-based medicine evidence to evaluate the safety and effectiveness.

Design and experiment of a 3-DoF master device with a 2-DoF parallel mechanism for flexible ureteroscopy.

Traditional commercial master devices and specialied serial master devices meet insufficient workspace, low intuitiveness, low stiffness, and poor accuracy during master-slave mapping for robot-assisted flexible ureteroscopy (FURS). This paper presents a 3-DoF master device for FURS. A 2-DoF parallel mechanism was designed and utilised in the master device for higher stiffness based on requirements analysis. A Back Propagation Neural Network was built for the forward kinematics of the parallel mechanism during master-slave mapping. Analysis of mechanical characteristics was carried out for the usability of the master device. A contrast experiment on the phantom was conducted to evaluate the performance between the proposed master device and a previous one. The completion time for each trial of the proposed master devices is shorter than that of the previous master serial device. Meanwhile, the proposed device provides a more comfortable operating style than the previous one. The proposed 3-DoF configuration for the master device is with more intuitive performance. A better comfort level indicates its usability in clinical applications.

The clinical value of classification of hilar cholangiocarcinoma based on actual anatomy

Objective: To examine the significance and prognostic value of the classification of hilar cholangiocarcinoma based on actual anatomical location. Methods: A retrospective study was conducted including 120 patients of hilar cholangiocarcinoma treated at the Second Affiliated Hospital,Zhejiang University School of Medicine and Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine from January 2019 to December 2021. Patients with hilar cholangiocarcinoma were classified for seven types according to the site of tumor location. The clinicopathological and prognostic data of 120 patients were retrospectively analyzed(There were 57 males and 63 females,the age (M(IQR)) was 61(22)years(range:42 to 85 years)). All patients received radical resection without visible intraoperative tumor residue and negative bile duct resection margin according to intraoperative pathological biopsy. The classification variables were analyzed by Pearson χ2 test or Fisher's exact probability test,one-way ANOVA or Kruskal-Wallis rank sum test.Kaplan-Meier method was used for survival analysis. Cox proportional risk model was used for prognostic factors. Results: The coincidence rate of preoperative surgical planning and actual operational styles was verified in 33 cases. Twenty-six cases were consistent,and 7 cases were inconsistent,with a coincidence rate of 78.8%. According to the actual anatomical location,patients in type of secondary branch experienced a significantly longer operation duration,a higher portal vein resection rate,margin positive rate and more advanced T stage(all P<0.05). The median overall survival time of the unilateral main trunck group was 27.0 months,and the bilateral group was 17.0 months. Survival analysis based on the tumor classification of the actual anatomical location showed that the unilateral or main trunck group predicted less aggressive clinical features and favorable outcomes(HR=1.931,95%CI:1.066 to 3.499,P<0.05). Multivariate analysis demonstrated that the actual anatomical location of the tumor type(HR=2.269,95%CI:1.333 to 3.861,P=0.003),combined liver resection(HR=0.464,95%CI:0.253 to 0.848,P=0.013) and N stage(HR=6.317,95%CI:3.083 to 12.944,P<0.01) were independent factors affecting the prognosis of patients. Conclusion: The classification based on the actual anatomy can be used as a promising scheme in refining patient stratification and predicting survival in hilar cholangiocarcinoma,and it can guide the selection of surgical methods,and predict operative safety and radical resection rate.

Techno-Economic Analysis of Atmospheric Water Generation by Hybrid Nanofluids to Mitigate Global Water Scarcity

Globally, multiple efforts are being made to develop active atmospheric water generation (AWG) or atmospheric water extraction (AWE) systems, particularly using direct air-cooling technology to produce water from ambient air. However, this legacy technique is highly energy-intensive; it can only be operated when the local dew point is above the freezing point of water, and does not scale to create enough water to offer solutions for most industries, services, or agriculture. Liquid-desiccant-based AWG methods show promising performance advantages, and offer a versatile approach to help address the thermodynamics, health risks, and geographic constraints currently encountered by conventional active AWG systems. In this study, we performed a techno-economic analysis of a liquid-desiccant-based AWG system with a continuous operating style. An energy balance was performed on a single design point of the AWG system configuration while using a LiCl liquid desiccant loaded with multiwalled carbon nanotubes (MWCNTs). We showed that the MWCNTs can be doped in LiCl for effective heat transfer during water desorption, resulting in lowering of the sensible heat load by ≈49% on the AWG system. We demonstrated that the specific energy consumption (SEC) can currently be obtained as low as 0.67 kWh per US gallon, while changing the inlet desiccant stream concentration of MWCNT-doped LiCl under the given conditions. While the production cost of water (COW) showed a significant regional dependency, economic analysis revealed that water can be produced at a minimum selling price of USD 0.085 per US gallon, based on the 2021 annual average wholesale electricity cost of USD 0.125 per kWh in the U.S.A., thereby providing a strong foundation for future research to meet desirable and competitive water costs by 2026, but before 2031.

Perceived barriers to client-choice conversion among Arkansas food pantries

Food insecurity continues to be a problem in the U.S., especially in Arkansas, which ranked second in the nation in food-insecure households in 2020 (Arkansas Food Bank, n.d.). To help address this, community-based food pantries make food avail­able directly to area residents. Food pantry demand has increased during COVID-19, which has exacer­bated food insecurity, particularly in the southern U.S. In Arkansas, the Arkansas Food Bank (AFB) serves as the state’s largest nongovernmental food aid provider, working with 310 pantries. Pantries typically distribute food to clients in one of two ways: by using a prefilled bag or box of items (the traditional model), or by allowing clients to select items (the client-choice model). Although research has shown that the client-choice model has a variety of benefits for client health and well­being, pantries using the traditional model remain the norm in Arkansas, accounting for 87% of total pantries. Currently, there is limited research that identifies perceived barriers to converting to a client-choice model among pantry managers, and that identifies whether perceived barriers and local­ized concerns contribute to different operation styles among pantries. To address this, we exam­ined perceived barriers to client-choice conversion using a mixed-method survey conducted with 187 Arkansas food pantry managers. We used common factor analysis to identify four barriers perceived by pantries to converting their traditional pantry to a client-choice pantry: (1) food supply concerns, (2) having limited non­food resources, (3) food waste concerns, and (4) confu­sion from clients and nutritional concerns. A cluster analysis of pantry respondents was also used, based on their level of concern for the four identified perceived barriers. Clusters we identified are Potential Converters (18.2%), Confusion Concerned pantries (56.7%), and pantries who are Skeptics (25.1%). Our findings suggest that food pantry stakeholders may need additional outreach and education concerning the various ways that client choice can be implemented. Our results pro­vide valuable information for those involved in dis­tributing food aid to food-insecure households.

The Use of Formal Approach and Techniques Applied to Understand and Improve the Blockchain

Abstract: With data volumes expected to expand exponentially in the next years, protecting that data is critical. To ensure the reliability of the system, we use cutting-edge tools like blockchain. It wasn't until the advent of bitcoin, however, that a sizable portion of the population took notice of blockchain technology. Since its inception, blockchain technology has been used in the academic community and by businesses. What this means is that the information is being stored in a way that makes tampering and unauthorized access very difficult. Blocks, an abbreviation for "blockchain," a digital public ledger, are used to record monetary transactions. All nodes will eventually agree on the same sequence of block attachments, and this is achieved by a process termed "consensus." Learning about the inner workings of each blockchain and the rationale for its unique style of operation is possible via a thorough examination of these algorithms. In this study, I examined and contrasted the different consensus mechanisms now in use with consensus protocols, analyzing their relative relevance in blockchain development. The consensus algorithm behind any specific blockchain-based system is crucial to the reliability and safety of that system. Formal approaches may be used to both increase users' trust in blockchain-based systems and design thoroughly tested and trustworthy solutions. To achieve this level of confidence, consensus methods must be effective. Formal modeling is developing a system in a mathematical language, then thoroughly testing and inspecting it to ensure its correctness. This study examined consensus processes and the role formal approaches play in this space to help with the construction of a trustworthy blockchain-based system. To ensure the accuracy of such procedures, this article discusses the current state of applying formal methods to the blockchain consensus process.

Structural and Modal Analysis Of Adapter Plates For Hydraulic Hammers And Skid Steers Under Real Work Condition

In Perú the necessity of facility projects such as gas line installation for residents has increased the demand for use of Hydraulic Hammers (HH) with Skid Steers due to the lower amount of investment needed in comparison to other packs of machinery and the versatility. The ability to interchange hydraulic hammers and buckets to complete the demolition and cleaning stages offers higher productivity than manual operations for contractors. For that reason, the virtual design software Inventor Professional was used to design a suitable adapter plate with adequate resistance and durability which has a direct impact on the structure of the hydraulic hammer and the hydraulic arm of the skid steers. Simultaneously, a basic animation was developed to explain the effect of the operation style over the hydraulic hammer and the adapter plate. Finally, for this development, the construction of an adapter plate as a fuse in the system was considered in case operators exceed the resistance capacity of the hydraulic hammer structure.

Kręte drogi odchodzenia od przestępczości

Moving away from crime does not always proceed along a straight path. Many offenders abandon their criminal behavior to return to it again after some time, although not always with the same intensity and frequency. Therefore, the process of rehabilitation, the specific process of abandoning a life of crime, must be seen as a long-term and dynamic process. It is characterised by numerous relapses to the “old” criminal style of operation, to a greater or lesser extent depending on the individual himself. These relapses do not occur due to single causes, but are influenced by a variety of coexisting factors. The aim of this paper is to present and analyse the Self-Regulatory Model of Relapse Prevention (in its modified SRM-R version), strongly inspired by the Good Lives Model, which illustrates possible ways away from delinquency not always in a linear way, but precisely through a variety of pathways.