Mobile Mechanism Research Articles

A twofold-symmetric kirigami pattern and its mobile tessellations

Tessellation is an efficient and convenient way to construct large mobile mechanisms with less DOF and has been widely adopted in large deployable structures, in which origami/kirigami is usually adopted as units due to its better symmetric properties. However, the existing origami/kirigami units are quite limited because the discovery mainly depends on the inspiration of designers. In this paper, we propose a new way to find units by setting link lengths to be zero with overconstrained linkages. A kirigami pattern is obtained from twofold-symmetric Bricard 6R linkage and two kinds of novel tessellations are subsequently constructed. Kinematic analysis shows that the obtained tessellations can be folded as tubular and eggbox-like structures. Meanwhile, the folding performance of these tessellations on geometric parameters is analysed for potential applications, and the results are validated by fabricating some prototypes. Therefore, the proposed kirigami pattern and the corresponding tessellations extend the family of large deployable structures.

Strontium and radium occurrence at the boundary of a confined aquifer system

Aquifers are susceptible to contamination by naturally occurring metals and radionuclides that limits the quantity of groundwater available for drinking. The Midwestern Cambrian-Ordovician aquifer system (MCOAS) is an important drinking water source in the North Central region of the U.S., but can contain elevated levels of geogenic radium (Ra) and strontium (Sr). Here, the occurrence of Ra and Sr is investigated with respect to natural groundwater evolution and water-rock interactions using a multi-isotope approach (δ18O, δ2H, δ34SSO4, 87Sr/86Sr, and [234U/238U]), in a portion of the MCOAS that straddles regionally unconfined and regionally confined conditions. Hierarchical cluster analysis reveals three distinct groups of groundwater geochemistry, evolving from a young (<10,000 years) HCO3−- dominant groundwater located upgradient to old (>10,000 years) SO42− and Cl−-dominant groundwater located downgradient. Strontium and Ra concentrations are highest downgradient, where extreme [234U/238U] disequilibrium indicates increased water-rock interactions due to local confinement or a stagnant groundwater zone. Geochemical conditions evolve as a consequence of water-rock interaction, resulting in Ra and Sr mobilization mechanisms including enhanced mineral dissolution and weathering, and decreased sorption efficiency due to competitive sorption and the absence or dissolution of iron and manganese (hydr)oxides with sorbed Ra and Sr. Relative to redox processes, ‘mixed’ redox samples have the highest median Sr and Ra concentrations, where young, oxic groundwater mixes with old, anoxic groundwater over long open boreholes. Isotopic results (δ18O and δ2H, 87Sr/86Sr) indicate these wells with long open boreholes are receiving more of the old, deep groundwater elevated in Ra and Sr, suggesting that well construction is an important consideration for Ra and Sr occurrence. The presented framework can be used to examine the occurrence of geogenic contaminants with respect to recharge history, water-rock interactions, and evolving geochemical conditions in other aquifer systems with a range of groundwater residence times and geochemistry.

A privacy‐preserving mechanism for social mobile crowdsensing using game theory

AbstractSmartphones and mobile networks have created a new paradigm called mobile crowdsensing for data gathering and processing about a large‐scale phenomenon. This paradigm's development allows untrustworthy people to gather large amounts of information over time from the reported events. In this regard, mobile crowdsensing increases the possibility of violating users' privacy. Recently, social communication has added potential capabilities to mobile crowdsourcing environments. Based on these social communications, this article presents an analysis of user's interactions for privacy‐preserving using a signaling game with a dynamic approach and incomplete information. First, the analysis identifies the pure‐strategy profiles and mixed‐strategy profiles and the user's best strategy for accepting access requests in a single time slot. This analysis is then extended into a dynamic multistage game. In this analysis, users' beliefs about the violation of their privacy are analyzed and updated at every stage. As a result, the best response from users will be determined. Following this analysis, a mechanism is presented for privacy‐preserving in social mobile crowdsensing. The experimental results have also indicated the success of the proposed method in dealing with different types of user interaction.

Variations in the mineral structures dominating solute mobilization during clay compaction

Microbial-mediated redox reactions typically control the solute mobilization in groundwater systems, in which the clay aquitard is usually a triggering factor of the release of the dissolved organic carbon, ammonium, and iron into the aquifer during pore water discharge and clay compaction. However, solute mobilization inside the aquitard during clay compaction is generally mistaken for a similar water–rock interaction process in aquifers controlled by microbial-mediated redox reactions. Through a simulation experiment on argillaceous sediment compaction, we tested the currently accepted solute mobilization mechanism and determined that the variation in the mineral structure dominates it. The variation in the mineral structure occurs in low symmetry minerals, such as clay minerals, and is controlled by the sediment moisture content, the liquid-plastic limit, and the effective stress. When the sediment moisture content decreases to below the plastic limit through pore water discharge and compaction, sudden changes in the mineral structure occur, releasing iron and capturing ammonium through variations in the relative position of the Si-O tetrahedrons and isomorphism of similar atoms without the participation of microbial-mediated redox reactions. These results suggest that the biochemical reactivities of organic carbon, iron, and ammonium are sometimes overestimated, i.e., when the role of the physical processes is ignored, in solute mobilization during clay compaction, which warrants more attention and investigation.

Mobilization and fractionation of HFSE and REE by high fluorine fluid of magmatic origin during the alteration of amphibolite

High field strength elements (HFSE) and rare earth elements (REE) are normally immobile in hydrothermal fluids whereas experimental studies indicate some anionic ligands can significantly enhance their solubility in hydrothermal fluids. However, the role of fluorine (F) in hydrothermal fluids revealed by experiments and natural samples is different or even contradictory, especially in the mechanism of elements mobilization and fractionation. Here, we report a field-based geochemical study of amphibolites with extremely high Nb/Ta ratios (up to 98.7) and enriched HREE concentrations. The Paleoproterozoic amphibolites are intruded by a granitic dike with zircon UPb age of 132 ± 3 Ma. Felsic veinlets are observed in thin-sections of the amphibolite. Biotites with high F contents occur as aggregates along the boundary between the felsic veinlets and amphiboles, which indicates they are formed by reaction between amphibole and the granitic melt. The amphiboles have core-mantle-rim structure with high F actinolitic mantle surrounding low F magnesio-hastingsitic core. Some actinolites intergrow with biotites, titanites and magnetites. These evidences indicate that the actinolites are produced by hydrothermal metasomatism or interface-coupled dissolution–precipitation. The metasomatism occurred at 0.3–0.9 kbar and 500–650 °C within the hornfels facies. Hydrothermal titanites from amphibolites yield a lower intercept age of 131 ± 4.3 Ma, which is consistent with the crystallization age of the granitic dike. These observations indicate that the fluids are derived from fractional crystallization of a felsic magma for diking, and the released fluids are channeled along the interface between dike and amphibolite. The metasomatic minerals show high F and no Cl contents, indicating the hydrothermal fluids are high in fluorine (0.04–0.12 wt%) and low in chlorine. The F contents of minerals negatively correlate with HFSE, REE contents and (La/Yb)N ratios, but positively with Nb/Ta ratios. These reveal the progressive leaching and fractionation of HFSE and REE by the hydrothermal fluids. Mass balance estimates that most trace elements lose 20–60% during the hydrothermal alternation of amphibole. The calculation results also reveal that more Ta and LREE are lost than Nb and HREE, indicating Ta and LREE are more soluble than Nb and HREE, respectively, in the hydrothermal fluids. All these observations suggest that HFSE and REE are not only mobilized but also fractionated because of different degrees of mobilization by fluoride-bearing fluids.

Poverty alleviation for people with disabilities in China: policy, practice, exclusionary effects, and ways forward

Adopting an approach that differs from practices in other countries, China has made many achievements in reducing poverty for people with disabilities using two successful types of policies and a unique political mobilization mechanism. However, inconsistencies between the policies and their implementation in the Chinese policy environment has produced new exclusionary effects, hindering the process of social integration for people with disabilities. These obstacles need to be addressed.

NMR characterization of fluid mobility in low-permeability conglomerates: An experimental investigation of spontaneous imbibition and flooding

Understanding fluid mobility during spontaneous imbibition (SI) and flooding is important for the enhancement of oil recovery. Many researches on SI, water flooding (WF), and N2 flooding (NF) have been published, but an in-depth understanding of the oil mobility at the pore scale is still inadequate in low-permeability reservoirs. To solve this problem, SI, WF, and NF experiments were performed on the low-permeability conglomerates of the Baikouquan Formation and the Urho Formation in the Mahu Sag. Moreover, online NMR was introduced to monitor the oil volume in pores with different sizes in real-time. Considering the wettability, mineral compositions, and pore structure, we established a schematic diagram to reveal the fluid mobility mechanism. The results show that the micropores in the low-permeability conglomerates are more hydrophilic, whereas the other pores are more lipophilic. During SI, the movable oil is mainly distributed in the micropores in the form of clay-bound oil (CBO), which is discharged from the rock through the meso/macropores. High hydrophilicity contributes to a high imbibition rate and oil recovery from SI, while the pore structure only affects the imbibition rate. During WF, the movable oil is contributed by CBO in the micropores and free oil (FO) in the pores controlled by throats >0.3 μm. During NF, the movable oil is mainly distributed in the pores controlled by > 0.1 μm throats, existing as FO and part capillary-bound oil (CAO). The results demonstrate that NF is effective to enhance the oil recovery of tight reservoirs, while WF is only effective for tight reservoirs with better pore structure (high Vr > 0.3 μm).

Forster, Andrea G. (2021). Navigating educational institutions. Mechanisms of educational inequality and social mobility in different educational systems. ICS-dissertation, Universiteit van Amsterdam. ISBN/EAN: 978-94-6416-281-3

Amsterdam University Press is a leading publisher of academic books, journals and textbooks in the Humanities and Social Sciences. Our aim is to make current research available to scholars, students, innovators, and the general public. AUP stands for scholarly excellence, global presence, and engagement with the international academic community.

East-West scientific collaboration face-to-face with dissidence: The logic of the International Committee of Mathematicians in defence of Plyushch and Shikhanovich

The case of mathematicians Leonid Pliushch and Iurii Shikhanovich, who were arrested in 1972 and locked up in psychiatric hospitals for their “anti-Soviet acts,” pushed the mathematical research community into a long-lasting and public international political debate. This article aims to analyze the beginnings of the protest this generated among Western mathematicians in support of their Soviet colleagues. How did these international mechanisms of politicized mobilization emerge in relation to ongoing claims about the value of open and neutral scientific discussions? Based on new archival research and interviews, the paper explains the context of mathematical international cooperation that emerged after Stalin and the asymmetric organization of the connections between Soviet and Western mathematicians. The author argues that the early 1970s marked a turning point with the degradation of the USSR’s international image tarnished scientific collaboration. The analysis then sheds light on the precise chronology of the international debate and the specificities of the first years of the International Committee of Mathematicians in Defence of Plyushch and Shikhanovich (1972-1974), which questioned the community’s unity and caused politics to erupt into science at the the International Mathematical Union’s (IMU) congress held in Vancouver in August 1974. The Détente international collaboration between Soviet and Western mathematicians and its disillusions created the conditions for a specific transnational mobilization, deeply rooted in a sense of “professional fraternity” and shared values, which did not erase the mathematicians behind the dissidents.

Deep-Learning-Based Mobile Group Intelligence Perception Mechanism Oriented to User Privacy and Data Security in the Internet of Things

With the rapid development of the Internet of Things, a large number of mobile devices participate in the perception and aggregation of data, outsourcing and storing massive data on various cloud platforms. Thus, a new data perception and privacy protection model based on mobile group intelligence perception and cloud computing is required. The existing work on data security and privacy protection mainly focuses on the independent link of data collection, aggregation, and services, which lacks holistic consideration for the different service requirements. To end this issue, this article comprehensively integrates the security and privacy protection requirements of various stages in the mobile group intelligence perception for data collection, aggregation, and service from a global perspective. Aiming at data privacy and security issues in the existing mobile group intelligence perception system, and the difficulty in guaranteeing the quantity and quality of data at the same time, a mobile group intelligence perception mechanism oriented to user privacy and data security is proposed. This mechanism uses deep learning as its core algorithm to handle big data cases. It can provide authenticity and reliability guarantees for the subsequent data application on the premise of protecting user privacy. Experimental results prove that the mechanism proposed in this article meets the security requirements, and its user-end computing overhead is small.

Current state and strategic directions of development of state management of nursing education in Ukraine

The article presents the results of the study of the current state of public administration and strategic directions of development of nursing education in Ukraine by on the example of Dnipropetrovsk region. The region was chosen because it ranks second in Ukraine in terms of population (first place Donetsk region). The purpose of the study is to determine the strategic prospects for reform and effective development of the medical sector, in particular the education system of health workers on the basis of the study of the current state of public health management. The article has a conceptual nature, so the following research methods were chosen: systematization and generalization; analysis and specification; abstract-logical. An analysis of the scientific database of domestic and foreign researchers found that public administration of the secondary medical education system, including the health care system, is in crisis and is characterized by globality, longevity and complexity. According to the results of statistical processing of primary data, it was found that despite the high level of graduates in the specialty «223 Nursing» of degrees professional junior bachelor and bachelor for five years (from 2016 to 2020) the number of nurses decreased by 21.6004% and this negative trend continues. State management of nursing education was defined as a special type of professional activity, the purpose and result of which is to ensure, support life and dynamic development of the industry whose main mechanisms are: regulatory-legal, coordination, organizational-motivational, educational-pedagogical, economic. The article emphasizes the need to develop strategic directions for the development of public administration in the system of medical education, which would provide medical institutions with highly qualified specialists, taking into account the market of educational services and the needs of society, to create and implement an effective resource mobilization mechanism to meet the needs of medical education, taking into account continuous professional development to train highly qualified professionals.

For Every Rat Killed

If my grandmother had survived the sickness of old age and were alive to witness the economic injustices wrought by capitalist culture, what would she think? If my grandmother were alive to observe familiar technologies for exterminating household pests—surveillance, capture, imprisonment, disposal—being increasingly aimed toward low-income Black communities, what would she believe? If my grandmother were alive to discover, in the palm of her hands, a digital platform for spreading information (and misinformation) to the masses and painting new futures into the minds of lawmakers and politicians, what would she say? Studies have shown that low-income individuals are more likely to suffer physiological and psychological harms than middle- and high-income individuals due to the substandard conditions of their communities. Yet, such indignities are justified by market opportunities to grasp for better—to take “personal responsibility” and “pull yourself up by the bootstraps”—even when the process of grasping for upward social mobility inflicts its own trauma. This Essay explores the trauma of grasping for better in the United States where wealth inequities only seem to be getting worse. In so doing, it considers whether capitalism’s competitive and individualistic culture—a spirit that thrives on the exploitation of the weak to further the capital accumulation of the strong—not only normalizes violence as a mechanism for social mobility but sews division and strife where alternative futures, perhaps even Afro-futures, might finally set us all free.

New Geochemical Framework and Geographic Information System Methodologies to Assess Element Occurrence, Persistence, and Mobility in Groundwater and Surface Water

This study presents a geochemical framework and geographic information system (GIS) method for assessing the intrinsic potential of surface water and groundwater to mobilize arsenic, molybdenum, selenium, uranium, and vanadium. The method was created using published groundwater and surface water geochemical data from the National Uranium Resource Evaluation database for 2302 groundwater and 915 surface water samples. The method was evaluated using published groundwater geochemical data from the Texas Water Development Board. Geochemical data were analyzed in GIS. Samples were categorized by environmental condition, which was determined by using reduction–oxidation—as indicated by pe—and pH ranges for each sample based on geochemical mobility frameworks developed by Smith (2007) and Perel’man (1986). Reduction–oxidation and pH influence the occurrence, persistence, and mobility of arsenic, molybdenum, selenium, uranium, and vanadium in groundwater and surface water. Reduction–oxidation categories were assigned to water samples using concentrations of redox-active constituents, including dissolved oxygen, iron, manganese, and sulfur. The presence of iron substrates and hydrogen sulfides were considered in relation to mobility mechanisms. Twelve-digit hydrologic unit code (HUC) boundaries were used in GIS as analysis areas to determine the most commonly occurring environmental condition in each HUC. The resulting maps identify the environmental conditions in different areas that can be used to identify where the elements are mobile. This methodology provides a systematic approach to identify areas where elements in groundwater and surface water may occur and persist and may be transferable to other locations.

DRAM: A three-dimensional analytical model for the mobilisation of root reinforcement in direct shear conditions

Roots can stabilise slopes against shallow landslides by mobilising their mechanical strength. Existing analytical models are highly simplified and typically focus on the ultimate limit state only, thus providing little insight into the underlying mechanism of reinforcement mobilisation. A new analytical model (‘DRAM’) was therefore developed to predict mechanical root reinforcement as a function of direct shear displacements. This model accounts for elasto-plastic root behaviour, three-dimensional root orientations, root failure through breakage or slippage, and a dynamically changing shear zone thickness.Comparison to two independent experimental direct shear data sets showed that the model was able to accurately predict the gradual mobilisation of root strength, the magnitude of peak root reinforcement, as well as the presence of significant root reinforcement at large shear displacements, associated with a relatively large quantity of roots slipping out of the surrounding soil.Because the newly developed model more closely resembles the underlying physics of the mobilisation of root reinforcement in direct shear while still being easy to use, it will be a useful tool for the engineering industry, in terms of quantifying root reinforcement distribution for limit analyses at the ultimate limit state, as well as for directing future research into the drivers of mechanical root reinforcement.

Multidimensional Heterogeneous Network Link Adaptation Based on Mobile Environment.

With the development of communication technology, train control operation system develops gradually, which significantly improves the reliability and efficiency of train operation. The current mobile Internet has gradually highlighted the many limitations of the mobile Internet in the high-speed mobile environment, which seriously deteriorate the service quality and user experience, and cause a waste of resources. In order to meet the real-time requirements of network communication resource scheduling in the mobile environment, aiming at the multidimensional dynamic adaptation framework constructed in a mobile environment, a service and network adaptation mechanism based on link failure state prediction is proposed in the paper. First, cross-layer theoretical analysis and actual data analysis are combined to construct a wireless link failure probability model. Then, reliable transmission requirements and transmission overhead are applied to optimize goals. Finally, simulation experiments are carried out according to the railway network data to evaluate the E-GCF adaptation algorithm. The experiment results show that compared with the current mainstream algorithms, the prediction accuracy of this adaptation algorithm is improved by 25%. The execution time of the algorithm is reduced by 9.6 seconds and the successful submission rate is as high as 99.99%. The advantages of the algorithm are significantly superior other algorithms. It proves that the research method of this paper can effectively improve the satisfaction rate and utility value of reliable transmission, as well as enhance the throughput performance. It solves the adaptation problems of frequent switching and low utilization of heterogeneous networks in a mobile environment, which contributes to the high-quality communication service of mobile network.

Changing the paradigm of the economic science under innovative development

Objective: to analyze the evolution of the economic science paradigm aimed at forming a system paradigm that allows changing the style of scientific thinking, generating system solutions, in particular, in the field of transformation of labor potential relative to the demands of the digital economy.Methods: the main method of research is the method of unity of the historical and the logical in relation to the evolution of the economic system, scientific views and principles that characterize it, as well as the principle of methodological system, which allows forming an idea of the modern economic system as a multidimensional object.Results: the article briefly examines the evolutionary stages of the economics paradigm; it is revealed that innovative development as an objective process of changing the environment causes the modernization of key subsystems, actualizing the application of a system paradigm that allows linking and presenting an adequate interpretation of emerging facts, events, and phenomena characteristic of the modern realities of the digital economy. The need to expand the innovative potential of labor resources, observed at all stages of the reproduction process, rethinking of the role of labor and its main components puts forward the requirements for its qualitative modernization. The symbiosis of labor relations with cultural, mental and other subsystems, forming the foundations of labor consciousness and the construction of labor behavior, is considered to be an essential argument for expanding research based on a systematic approach. In this regard, scientific and applied developments aimed at the formation of mobile institutional mechanisms and structures, like institutional interaction centers focused on the development of labor potential and its harmonious improvement, enable to expand the range of the used mechanisms, setting them a vector that meets the needs of society.Scientific novelty: based on a systematic approach, a characteristic of new institutional structures is proposed, which is related to social partnership and allows solving the problem of adaptation of labor potential to the demands of the digital economy.Practical significance: the main provisions and conclusions of the article can be used in scientific and pedagogical activities for the formation of institutional centers of interaction.

Investigation of the Bacterial Bioaerosols in the Air of Wastewater Treatment Plant of Jahanabad Meybod Industrial Town

Introduction: In recent decades, with the emergence of new industrial activities and increase production of waste production, industries require the existence of treatment equipment and sanitation. These devices sometimes spread infectious microorganisms into the air. These include waste recycling industries and wastewater treatment plants. Bioaerosols are produced at different stages of the wastewater treatment process, especially in processes such as mobile mechanisms and aeration.&#x0D; Methods: In this study, air sampling was performed from different units of the treatment plant and indoor air. the plates were placed in an incubator for 24-48 hours at a temperature of 35 to 37 ° C. Then the number of bacterial colonies grown on the culture media was counted and recorded as CFU/m3.&#x0D; Results: The results showed that the average population of bacterial aerosols was higher in summer than in spring. Also, the highest bacterial population was observed in spring in indoor air with an average of 187.58±13.41 CFU/m3 and in summer in a equalization unit with an average of 202.89±12.11 CFU/m3.&#x0D; Conclusion: The results of this study showed that the number of bacterial bioaerosols increases in warm seasons. Also, the equalization unit had a high ability to produce bacterial bioaerosols. Finally, It can be said that increasing the distance from the source of contamination causes a significant reduction in the number of bacterial bioaerosols.

Evidence for Pseudoxanthomonas mexicana as the recent origin of the blaAIM-1 carbapenemase gene

ObjectivesElucidating the recent evolutionary history of clinically important antibiotic resistance genes may inform measures to delay the future emergence of additional resistance genes in clinics. This study investigated the recent origin of blaAIM-1, a metallo-β-lactamase gene found in Pseudomonas aeruginosa, and the possible role of ISCR15 in its mobilisation and transfer into clinical species. MethodsComparative genomics were used to identify the recent origin of blaAIM. Mobilisation attempts were performed under different conditions by cloning ISCR15 and the blaAIM-1-like gene in Escherichia coli. ResultsSeveral blaAIM-1 homologues were identified in the Pseudoxanthomonas genus, with conserved synteny of the locus between species and absence of elements associated with mobility. The closest AIM-1 homologue (97.7% amino acid identity) was found in a Pseudoxanthomonas mexicana (P. mexicana) strain. Cloning the blaAIM-like gene in Escherichia coli resulted in high resistance towards carbapenems. While blaAIM-1 is surrounded by ISCR15 elements in clinical strains, in vitro experiments failed to demonstrate their role as mobilising elements. ConclusionsThis study presents evidence that P. mexicana, an environmental species occasionally associated with infections, is the origin of the B3 metallo-β-lactamase AIM-1. The presence of terIS, a plausible recognition site for ISCR15, in other parts of the P. mexicana genome suggests a more complex and yet not understood mobilisation mechanism.

Security issues in next generation mobile payment systems

Methods. In the security process system the following methods are used: analysis method (generalization of the problem, elaboration of the measures to improve security procedures), comparison (to identify of the assessment of M-Payment systems), formalization (to set the problem of the mathematical modelling). Results. The different payment schemes and their use, technology and security have been generalized. Most pay methods are account-based payment systems and their core. The focus is on security, privacy and authentication. Models of mobile payment system (MPS) have been proposed, as well as their technologies and payment methods, various security mechanisms embedded in MPS, encryption technologies and authentication methods. Mobile payment system security mechanism is proposed in response to modern demands. It has been demonstrated that keeping in check the confidentiality, integrity and availability triad, each payment should be made with authentication and encryption because the future of MPS depends on its security features. Novelty. Scientific novelty of the research is in the outlining of strategic prospects of the encryption technologies, authentication methods, and firewall in MPS, to provide different security aspects. Practical value. The potential impact of digitalization on mobile payment systems makes it more difficult than just the result of modular reorganization. The practical value of the paper is to fix the dynamics that can not be found in developed countries. Findings can be applied to other mobile payment systems in developing economies.

Assessing the Integrative Framework for the Implementation of Change in Nursing Practice: Comparative Case Studies in French Hospitals.

The implementation of healthcare policies in healthcare organizations is a pivotal issue for managers. They generally require a change in professional practices. In previous work, we developed the Integrative Framework for Implementation of change in Nursing Practices (IFINP) to support implementation initiatives for such change in nursing practices. We aimed to assess the generalizability of IFINP in other organizational settings and explore links between strategic and socio-material factors during implementation. We used a comparative qualitative case study at three French hospitals to assess the implementation of certification procedures. Data were collected from 33 semi-structured interviews with managers and nurses. Narratives reflecting actions and interactions were extracted and deductively analyzed using IFINP components. The results showed that the framework was flexible and captured the different aspects of implementation actions and interactions at the three hospitals. Strong interferences were identified between mobilization mechanisms and strategic elements. Interferences were observed mostly between ‘reflexive monitoring and work articulation’, and ‘reflexive monitoring and sense-making’ mechanisms. Leadership was integrated into the different mechanisms, especially the ‘translation’ mechanism. The IFINP facilitated a greater understanding of strategic elements and associated relationships with social and material factors during implementation. It helps to provide a clear definition of the managers’ role when implementing new nurse practices.