Microplastics-driven reconfiguration of organic carbon fractions in lake sediments: mineralization and stabilization dynamics of biodegradable polymers.

Comparative structural optimization of PtCo and PtNi bimetallic clusters presents significant challenges due to complex potential energy landscapes and competing structural motifs. In this work, we develop a Multi-Cooperative Differential Evolution (MCDE) algorithm with enhanced convergence mechanisms and apply it to the systematic structural prediction of PtmCon and PtmNin clusters (N = 38 or 55). The algorithm employs multi-strategy cooperative optimization and adaptive parameter control to improve global search efficiency for bimetallic systems. Comparative analysis with the basin hopping genetic algorithm (BHGA) and traditional self-adaptive differential evolution with neighborhood search (SaNSDE) demonstrates that MCDE achieves 50-75% faster convergence and significantly higher success rates. Selected low-energy structures are further validated through density functional theory (DFT) calculations, confirming the reliability of the Gupta potential predictions and revealing enhanced electronic properties in optimized configurations. Excess energy and second-order difference energy calculations examine thermodynamic stability and compositional preferences, while bond orientational parameters and Common Neighborhood Analysis quantitatively characterize structural features. Systematic comparison demonstrates that PtCo systems exhibit more favorable mixing thermodynamics with sharp compositional selectivity, whereas PtNi systems show superior absolute stability with predictable structural evolution. Optimal PtCo clusters display complex structural regionalization with mixed coordination environments, while PtNi clusters maintain predominantly uniform icosahedral arrangements. Our work demonstrates the effectiveness of the improved algorithm and provides fundamental insights into the structure-stability relationships of bimetallic nanoclusters.

The operational efficiency and precision of boom sprayers, as critical equipment for protecting field crops, are vital to global food security and agricultural sustainability. In precision agriculture systems, achieving uniform pesticide application fundamentally depends on maintaining stable boom posture during operation. However, severe boom vibration not only directly causes issues like missed spraying, double spraying, and pesticide drift but also represents a critical bottleneck constraining its functional realization in cutting-edge applications. Despite its importance, achieving absolute boom stability is a complex task. Its suspension system design faces a fundamental technical contradiction: effectively isolating high-frequency vehicle vibrations caused by ground surfaces while precisely following large-scale, low-frequency slope variations in the field. This paper systematically traces the evolutionary path of self-balancing boom technology in addressing this core contradiction. First, the paper conducts a dynamic analysis of the root causes of boom instability and the mechanism of its detrimental physical effects on spray quality. This serves as a foundation for the subsequent discussion on technical approaches for boom support and balancing systems. The paper also delves into the evolution of sensing technology, from “single-point height measurement” to “point cloud morphology perception,” and provides a detailed analysis of control strategies from classical PID to modern robust control and artificial intelligence methods. Furthermore, this paper explores the deep integration of this technology with precision agriculture applications, such as variable rate application and autonomous navigation. In conclusion, the paper summarizes the main challenges facing current technology and outlines future development trends, aiming to provide a comprehensive reference for research and development in this field.

This paper focuses on the issue of absolute exponential stability for switched delay Lurie systems characterized by all unstable modes. To address the challenges posed by time-varying delay and all unstable modes, the discretized time-varying Lyapunov function method and Razumakin technique are utilized. New delay-independent stability criteria are derived for both discrete and distributed time-varying delay cases. Finally, two numerical examples are given to demonstrate the efficacy and the reduced conservatism of the proposed results.

Designing coupling schemes for specialized advanced mono-physics solvers in order to conduct accurate and efficient multiphysics simulations is a key issue that has recently received a lot of attention. A novel high-order adaptive multistep coupling strategy has shown potential to improve the efficiency and accuracy of such simulations, but requires further analysis. The purpose of the present contribution is to conduct the numerical analysis of convergence of the explicit and implicit variants of the method and to provide a first analysis of its absolute stability. A simplified coupled problem is constructed to assess the stability of the method along the lines of the Dahlquist’s test equation for ODEs. We propose a connection with the stability analysis of other methods such as splitting and ImEx schemes. A stability analysis on a representative conjugate heat transfer case is also presented. This work constitutes a first building block to an a priori analysis of the stability of coupled PDEs.

We have reconsidered the formation and stability of a vortex street, induced in a rectangular container by a tape moving at high speed on its free surface. In a certain range of tape velocity and of geometrical aspect ratios, the liquid recirculates along the lateral sides of the pool, which induces two shear flows between the tape and these lateral sides, that undergo two coupled Kelvin-Helmholtz instabilities, giving rise to the vortex street. Contrary to the classical situation of a wake behind an obstacle, the double row remains static which allows one to study its absolute stability in a stationary framework. In the present paper we present a stability analysis around the mean flow that clarifies the wavelength selection problem, inside the stability tongue predicted long ago by Rosenhead, and reduced by steric arguments that we found in a previous paper. In summary the mean wavelength favored by shear flow instabilities is given by , where c is half the channel width, while the maximal wavelength predicted by marginal stability is equal to . Our available experimental data are in very good agreement with these results and with the resulting phase diagram.

In this paper, we introduce High order boundary value linear multistep method (HOBVLMM) for the numerical solution of stiff systems of initial value problems (IVPs). The order, error constant, zero stability and the region of absolute stability for the HOBVLMM are discussed. The proposed scheme posses 0k,k-1 -stability and (Ak,k-1 )-stability, achieving a high order of p = 2k - 1, where k represents the step number of the LMM. The methods prove to be effective for stiff systems of IVPs in ordinary differential equations (ODEs), as evidenced by our numerical experiments, which shows superior performance compared to some existing methods.

This paper investigates the absolute exponential stability and L 1 -gain performance for switched positive Lur'e systems, where the core challenge lies in the asynchronous switching between controllers and subsystems caused by signal transmission delays. To tackle this issue, an asynchronous control strategy based on a dwell time switching mechanism is proposed. The dwell time approach is adopted for its key advantage of reducing computational complexity, as it avoids to solve mode-dependent parameters. Multi-time-varying linear co-positive Lyapunov functions are constructed, offering flexibility for stability analysis compared to traditional time-invariant functions. Based on this framework, sufficient conditions are derived to guarantee both the positivity and absolute exponential stability of the closed-loop system under asynchronous switching. Furthermore, the L 1 -gain performance is analyzed to quantify systems disturbance attenuation capability. Finally, two numerical examples including an application to switched neural networks are proposed. The simulations demonstrate the advantages of proposed asynchronous controller over traditional synchronous ones.

We present a GaSb-based vertical-external-cavity surface-emitting laser (VECSEL) tailored as a low-noise pump source for quantum frequency conversion. The 2062.4 nm emitting VECSEL emits a single-frequency output power of 2.5 W in a linear cavity with an intracavity birefringent filter. With no additional means of wavelength stabilization, the emission wavelength drift over 15 hours was less than 7 pm after the initial thermalization period. After locking the VECSEL to a frequency comb, the beating frequency between the laser and the comb light was characterized. The measurement confirmed a linewidth of less than 350 kHz (FWHM), and the absolute wavelength deviation over 22 hours had a standard deviation of 103.6 kHz. Relative intensity noise (RIN) measurements showed an integrated RIN of 0.15% root mean squared (RMS).

Yaw stability is a core issue in commercial vehicle(CV) driving safety, especially in the emergencies and extreme conditions. This study aims to address it with the concept of variable stability region (VSR) in dynamic and unpredictable conditions. The critical boundary of yaw stability is analyzed through the Routh-Hurwitz criterion with the impact of pavement adhesion disturbance. Then, the variable boundaries of absolute stability, critical stability, and instability are constructed, considering the relationship between nominal and observed states interfered with adhesion disturbance. Meanwhile, an intervention mechanism coordinating active steering control (AFS) and direct yaw control (DYC) is implemented within the VSR framework. A hybrid model predictive control with VSR (HMPC-VSR) is proposed to handle various control objectives and constraints with the intervention mechanism. Furthermore, rollover stability and tire slip are also incorporated into the HMPC-VSR for improved control performance. Simulation results show that, the effectiveness of the VSR intervention mechanism is demonstrated in maintaining stability with improved accuracy and timeliness in the presence of adhesion disturbances, and the HMPC-VSR reflects potential in enhancing yaw stability limit for CV in spite of complicated situations with low adhesion and variable loads.

Abstract Background Maintaining the integrity of blood samples during transport is essential for accurate laboratory diagnostics. Hemolytic, lipemic, and icteric (HIL) indices are critical preanalytical markers that detect hemolysis, lipemia, and icterus, which can interfere with diagnostic results. With the growing interest in drones as a method of medical transport, particularly for remote or underserved areas, it is crucial to evaluate their impact on the stability of HIL indices. This study investigates whether blood samples transported by drones maintain their integrity, focusing on four common sample types: serum, EDTA whole blood, lithium-heparin plasma, and citrate plasma. Methods A total of 25 samples for each of the four blood types were collected and transported by a custom-built medical drone. The drone covered a 25 km route in 30 minutes at a cruising speed of 100 km/h and an altitude of 100 meters. Samples were placed in secure containers designed to minimize vibration and temperature fluctuations. Environmental conditions were monitored using data loggers and accelerometers. Hemolytic, lipemic, and icteric indices were measured spectrophotometrically before and after transport using standard absorbance techniques. Paired t-tests were performed to assess statistical significance, with a threshold of p < 0.05. Results The study found no significant changes in the HIL indices for any sample type after drone transport. Serum samples exhibited minimal variations, with the hemolytic index showing a mean change of -0.15 (p = 0.19) and the lipemic index a decrease of -0.20 (p = 0.38). EDTA whole blood demonstrated similarly stable results, with the hemolytic index showing a delta of -0.15 (p = 0.42) and the lipemic index increasing by +0.25 (p = 0.23). Lithium-heparin plasma displayed absolute stability in the hemolytic index (0.00, p = 1.00) and minor, non-significant changes in the icteric and lipemic indices (+0.05, p = 0.79). Citrate plasma results reflected comparable stability, with all p-values exceeding 0.19. Across all sample types, the variations in mean values were statistically and clinically insignificant, confirming the stability of preanalytical quality during drone transport. Conclusion This study demonstrates that blood samples transported via drone maintain stable hemolytic, lipemic, and icteric indices, supporting the reliability of this method in medical logistics. Drones offer significant advantages, including bypassing traffic, reducing delays, and enabling transport in remote or underserved areas. Additionally, they present a sustainable alternative to traditional transportation methods. By ensuring the integrity of transported blood samples, this research supports the integration of drones into healthcare systems as an innovative, efficient, and environmentally friendly solution. Further exploration of drone scalability and its effects on additional diagnostic parameters is warranted to expand its application in modern laboratory medicine.

The stability of non-autonomous automatic control systems with respect to the vector function ω in a neighborhood of a program manifold is studied. First, we consider the case where the Erugin function matrix and the Lyapunov matrix are constant, while the control matrix and the feedback matrix are variable. The nonlinear control function is assumed to satisfy a general local quadratic constraint. By constructing a Lyapunov function in quadratic form with a constant matrix, sufficient conditions for the absolute stability of the control system in a neighborhood of the program manifold are obtained. We then consider a control system in which the nonlinearity satisfies a transformed local quadratic constraint. For this system, a Lyapunov function of the form “quadratic form with a constant matrix plus an integral of the local quadratic constraint” is constructed, which yields sufficient conditions for absolute stability of the control system near the program manifold. Next, we address the case where both the Erugin function matrix and the Lyapunov matrix are variable. By constructing a Lyapunov function in quadratic form with a variable matrix, we obtain sufficient conditions for the asymptotic stability of a non-autonomous system without control and the absolute stability of a non-autonomous control system, expressed in terms of generalized Sylvester inequalities. An illustrative example is provided.

Bone healing occurs through two distinct pathways: direct (primary) and endochondral ossification, with the mechanical environment at the fracture site being crucial in determining the respective pathway. Absolute stability promotes direct (primary or Haversian) bone healing via the migration and direct osteogenic differentiation of mesenchymal stromal cells across the fracture line. On the other hand, it is widely accepted that secondary fracture healing is triggered by a certain level of mechanical stimulation that initiates and promotes a cascade of events towards the formation of an intermediate cartilaginous callus matrix, that will eventually remodel into bone.In his strain theory, back in 1980, Prof Perren proposed that the bone healing process is regulated by the displacement applied at the fracture site relative to the size of a fracture gap (strain). Since, many in vivo studies have further investigated the affect of mechanical stimulus on the bone healing outcome, by applying different regiments or loading types. Though, optimal stimulation parameters to enhance fracture healing have not yet been entirely defined. There are still uncertainties concerning the magnitude of the deformation, its frequency, timing and duration. In addition, the influence of those parameters on the cellular process of hypertrophic cartilage formation and remodeling - critical for bone healing - is still not fully understood. In this context, our latest research focused on understanding the influence of mechanical parameters on the differentiation fate of naïve mesenchymal stem cells, using a custom-designed bioreactor for precise manipulation of strain conditions and loading protocols.A better understanding of the effect of strain on the cellular response and mechanism involved during hypertrophic chondrocyte differentiation and callus formation is crucial knowledge for the development of biomechanically optimized implants, as well as for the establishment of superior rehabilitation protocols.

Differential Equations (DE) are useful for representing a variety of concepts and circumstances. However, when considering the initial or boundary conditions for these DEs models, the usage of fuzzy numbers is more realistic and flexible since the parameters can fluctuate within a certain range. Such scenarios are referred to be unexpected conditions, and they introduce the idea of uncertainty. These issues are dealt with using fuzzy derivatives and fuzzy differential equations (FDEs). When there is no precise solution to FDEs, numerical methods are utilized to obtain an approximation solution. In this study, the One-step Implicit Scheme (OIS) with a higher fuzzy derivative is extensively used to discover optimum solutions to first-order FDEs with improved accuracy in terms of absolute accuracy. We evaluate the method competency by investigating first-order real-life models with fuzzy initial value problems (FIVPs) in the Hukuhaa derivative category. The principles of fuzzy sets theory and fuzzy calculus were utilized to give a new generic fuzzification formulation of the OIS approach with the Taylor series, followed by a detailed fuzzy analysis of the existing problems. OIS is acknowledged as a practical, convergent, and zero-stable with absolute stability region approach for solving linear and nonlinear fuzzy models, as well as a useful methodology for properly managing the convergence of approximate solutions. The developed scheme capabilities is proved by providing approximate solutions to real-life problems. The numerical findings demonstrate that OIS is a viable and transformative approach for solving linear and nonlinear first-order FIVPs. The results provide a concise, efficient, and user-friendly approach to dealing with larger FDEs.

We further develop a recently introduced phase-field model of far-from-equilibrium alloy solidification under additive manufacturing conditions [K. Ji , ]. This model utilizes enhanced solute diffusivity within the spatially diffuse interface region to quantitatively capture solute trapping with a larger interface width, thereby making simulations on experimentally relevant length and timescales computationally feasible. The main developments presented here include testing the robustness of different variational formulations, extending the model to concentrated alloys by incorporating solid and liquid free energies from thermodynamic databases, as illustrated for hypoeutectic Al-Ag alloys with CALPHAD, extending convergence tests as a function of interface width to 3D, and carrying out simulations in both 2D and 3D to examine existing theories of microstructure development. Our results indicate that the simplest variational formulation that interpolates the bulk free-energy density between its solid and liquid forms is the most robust. Remarkably, for hypoeutectic Al-Ag alloys, this formulation yields a high-velocity nonequilibrium phase diagram that is independent of interface width, thereby demonstrating that the framework of enhanced solute diffusivity can be nontrivially extended to concentrated alloys. Other variational formulations have restricted ranges of materials or processing parameters that can be reliably modeled. We use 2D simulations to construct high-velocity microstructure selection maps for dilute Al-Cu alloys. The results validate the important role of latent heat rejection at the interface and extend the limited predictions of linear stability analysis [A. Karma and A. Sarkissian, ] and sharp-interface 1D simulations to fully nonlinear regimes. Furthermore, 3D simulations, carried out using a computationally tractable axisymmetric cellular/dendritic interface shape, demonstrate a good convergence similar to that observed in 2D as a function of interface width. Full 3D simulations, in turn, reveal that the standard theory of absolute stability is a good predictor of the upper critical velocity beyond which steady-state growth becomes unstable, despite the different morphological manifestations of this instability in 2D and 3D.

Recent analyses on the properties of the central compact object in the HESS J1731-347 remnant and the PSR J1231-1411 pulsar indicated that these two compact objects are characterized by similar (low) masses and possibly different radii. This paper aims at reconciling the aforementioned measurements by utilizing the widely employed color-flavor locked (CFL) MIT bag model. The main objective is related to the examination of the acceptable values for the color superconducting gap Δ and the bag parameter B. Furthermore, our analysis involves two distinct hypotheses for the nature of compact stars. Firstly, we considered the case of absolute stability for strange quark matter and we found that it is possible to explain both measurements, while also respecting the latest astronomical constraints on the masses and radii of compact stars. Secondly, we studied the case of hybrid stellar matter (transition from hadrons to quarks), and concluded that, when early phase transitions are considered, the simultaneous reconciliation of both measurements leads to results that are inconsistent to the existence of massive compact stars. However, we showed that all current constraints may be satisfied under the consideration that the HESS J1731-347 remnant contains a slow stable hybrid star.

This paper presents some of the most significant findings in the design of a hydraulic servomechanism for flight controls, which were primarily achieved by the first author during his activity in an aviation institute. These results are grouped into four main topics. The first one outlines a classical theory, from the 1950s–1970s, of the analysis of nonlinear automatic systems and namely the issue of absolute stability. The uninformed public may be misled by the adjective “absolute”. This is not a “maximalist” solution of stability but rather highlights in the system of equations a nonlinear function that describes, for the case of hydraulic servomechanisms, the flow-control dependence in the distributor spool. This function is odd, and it is therefore located in quadrants 1 and 3. The decision regarding stability is made within the so-called Lurie problem and is materialized by a matrix inequality, called the Lefschetz condition, which must be satisfied by the parameters of the electrohydraulic servomechanism and also by the components of the control feedback vector. Another approach starts from a classical theorem of V. M. Popov, extended in a stochastic framework by T. Morozan and I. Ursu, which ends with the description of the local and global spool valve flow-control characteristics that ensure stability in the large with respect to bounded perturbations for the mechano-hydraulic servomechanism. We add that a conjecture regarding the more pronounced flexibility of mathematical models in relation to mathematical instruments (theories) was used. Furthermore, the second topic concerns, the importance of the impedance characteristic of the mechano-hydraulic servomechanism in preventing flutter of the flight controls is emphasized. Impedance, also called dynamic stiffness, is defined as the ratio, in a dynamic regime, between the output exerted force (at the actuator rod of the servomechanism) and the displacement induced by this force under the assumption of a blocked input. It is demonstrated in the paper that there are two forms of the impedance function: one that favors the appearance of flutter and another that allows for flutter damping. It is interesting to note that these theoretical considerations were established in the institute’s reports some time before their introduction in the Aviation Regulation AvP.970. However, it was precisely the absence of the impedance criterion in the regulation at the appropriate time that ultimately led, by chance or not, to a disaster: the crash of a prototype due to tailplane flutter. A third topic shows how an important problem in the theory of automatic systems of the 1970s–1980s, namely the robust synthesis of the servomechanism, is formulated, applied and solved in the case of an electrohydraulic servomechanism. In general, the solution of a robust servomechanism problem consists of two distinct components: a servo-compensator, in fact an internal model of the exogenous dynamics, and a stabilizing compensator. These components are adapted in the case of an electrohydraulic servomechanism. In addition to the classical case mentioned above, a synthesis problem of an anti-windup (anti-saturation) compensator is formulated and solved. The fourth topic, and the last one presented in detail, is the synthesis of a fuzzy supervised neurocontrol (FSNC) for the position tracking of an electrohydraulic servomechanism, with experimental validation, in the laboratory, of this control law. The neurocontrol module is designed using a single-layered perceptron architecture. Neurocontrol is in principle optimal, but it is not free from saturation. To this end, in order to counteract saturation, a Mamdani-type fuzzy logic was developed, which takes control when neurocontrol has saturated. It returns to neurocontrol when it returns to normal, respectively, when saturation is eliminated. What distinguishes this FSNC law is its simplicity and efficiency and especially the fact that against quite a few opponents in the field, it still works very well on quite complicated physical systems. Finally, a brief section reviews some recent works by the authors, in which current approaches to hydraulic servomechanisms are presented: the backstepping control synthesis technique, input delay treated with Lyapunov–Krasovskii functionals, and critical stability treated with Lyapunov–Malkin theory.

Background. Given the shortcomings of conservative treatment, especially in young patients with multifragment fractures, the surgical method is the priority direction. Internal fixation can be achieved through a variety of designs, both single screws and plates, to provide absolute stability to support the articular surface. Double plate fixation is considered the gold standard, but recent studies using single and double plates have not found significant differences between groups. In addition, the overall rate of postoperative complications with double fixation, according to various authors, is about 11.4 %. Objective: to investigate the stress-strain state of a model with different variants of osteosynthesis of the lower leg with a multifragment fracture of the proximal end of the tibia under the influence of a bending load in the frontal plane. Materials and ­methods. A basic finite element model of the lower leg was developed, which included the tibia and fibula. A multifragment fracture was modeled at the proximal end of the tibia by dividing it into different planes. Three variants of osteosynthesis with bone plates were studied: on the medial, lateral side, and 2 plates on both sides. The models were investigated under the influence of bending load in the frontal plane. Results. Under the influence of bending loads in the frontal plane, osteosynthesis with two plates provides the lowest level of stresses in the bone elements of the model. The exception is the bone fragments in the fracture zone, in which the stresses around the screws from the lateral side have the highest values. As for models with unilateral fixation of fragments, the fundamental differences are also determined in the level of stresses on the bone fragments around the fixing screws, where they differ almost 8 times not in favor of the lateral location of the plate. Conclusions. Under the influence of bending load in the frontal plane, osteosynthesis with two plates provides minimal stress in both the bone elements of the model and the elements of the metal structure, except for stresses in the bone fragments around the screws from the lateral side in the metaphyseal zone. The stresses in models with unilateral fixation of fragments fundamentally differ only in the level of stresses on the bone fragments around the fixing screws, where they differ almost 8 times in favor of the medial location of the plate.

IntroductionCompetency in patient education is one of the main elements of nurses' professional competency. This study aimed to develop and evaluate the psychometric properties of a self-assessment scale regarding nurses’ competency in patient education.Material and methodsThis sequential exploratory mixed-methods study was conducted in two stages. The first stage explored nurses’ experiences and perceptions of competency in patient education. So, a qualitative conventional content analysis study was conducted in 2023–25 for item generation. Purposive sampling was used to recruit the participants. Competency in patient education was explained using three focused groups (n = 19), individual semi-structured interviews (n = 6), a written narrative, and a literature review.In the subsequent phase, the scale's face validity was evaluated with the involvement of 15 nurses, while the content validity ratio and content validity index were determined by eight and ten experts, respectively. Then, the exploratory factor analysis was used to determine the domains of the scale. 408 nurses were recruited by convenience sampling from all over Iran. The reliability of the scale was assessed using internal consistency, relative and absolute stability methods. As well, responsiveness, reproducibility, feasibility, and floor and ceiling effects were assessed.ResultsThe scale was developed with 33 items and four dimensions: “adherence to the patient education principles”, “attending to patient preparation and conditions”, “observing ethical and interpersonal principles”, and “professionalism in patient education”, with a total variance of 57.44%. The findings confirmed that this tool is acceptable regarding validity, reliability, and other measurement features. The S-CVI/Ave of the scale was 0.9. The reliability of the scale was confirmed with Cronbach’s alpha coefficient (α = 0.917), (intra-cluster correlation = 0.977, with 95% confidence interval = 0.953–0.989), and (standard error of measurement = 2.15). The scale’s responsiveness, reproducibility, feasibility, and floor and ceiling effects were confirmed.ConclusionThis scale was developed to assess nurses' competency in patient education.

Background: The forearm fractures are considered intraarticular due to functional characteristics and spatial orientation. These fractures require anatomic reduction to maintain axial and rotational stability and preserve bone length with absolute stability for adequate healing to restore function. Open reduction and internal fixation is accepted as the treatment of choice for both bone forearm fractures according to many studies. However, it can result in complications like extensive soft tissue damage, evacuation of fracture hematoma, periosteal damage, radioulnar synostosis, neurovascular injury, compartment syndrome, delayed union, non-union, infection, refracture after implant removal. Intramedullary nailing is an alternative technique to avoid the above problems, with the advantages of minimal incision, no periosteal stripping, faster healing and biologic fixation. This study evaluates the functional outcome in adults treated for both bone forearm fractures with intramedullary square nail fixation at our institute. Methods: 113 patients with closed both bone forearm fractures were treated with Intramedullary square nail fixation between January 2014 to December 2023. There were 54 (22A) type fractures, 44 (22B) type fractures, 15 (22C) type fractures. Functional outcome was assessed based on Anderson’s criteria. Results: 105 patients had excellent to satisfactory results while fixation in 8 patients resulted in failures based on Anderson’s criteria. Conclusions: Intramedullary nailing is a simple, safe and effective method of alternative fixation of both bone forearm fractures that is associated with closed reduction, early union, biologic fixation, low infection rate, small cosmetic scars, less blood loss, shorter operating time, and less risk of compartment syndrome.