Changes In Width Research Articles

Field evaluation of organic and synthetic insecticides against the hala scale, Thysanococcus pandani (Hemiptera: Halimococcidae), on Maui, Hawaii.

The hala scale, Thysanococcus pandani Stickney, is an invasive insect that infests hala trees, Pandanus tectorius, and has recently arrived in the Hawaiian Islands of Maui, Oahu, and Molokai. Hala scale is native to Thailand, Indonesia, and Singapore and was accidentally introduced to Maui, with its first detection in Hana in 1995. The hala tree is a frequently planted ornamental plant throughout Hawaii's urban landscape and is also a native tree found in coastal areas of ecological suitability throughout the state. These trees are integral to native Hawaiian weaving traditions, as the leaves were used to make items such as sails, hats, or mats. The spread of T. pandani threatens the continuation of these practices, as the plant material may not be sufficient for weaving. Hala trees infested with T. pandani can have negative effects such as deformation, discoloration, and early tree death. Experimental field trials were set up to evaluate the efficacy of organic and chemical insecticides as potential treatments to mitigate the damage of T. pandani infestations. This was done on the Island of Maui, where T. pandani is widespread. These trees were artificially inoculated with T. pandani and evaluated throughout the trials for changes in plant height, canopy width, scale removal, and visual infestation ratings. The results of 2 repeated field trials indicated that flupyradifurone and buprofezin were effective treatments in the reduction of the hala scale infestation and improving visual aspects related to plant health.

Impact of the adjacent bone on pseudarthrosis in mandibular reconstruction with fibula free flaps

BackgroundMechanical and morphological factors have both been described to influence the rate of pseudarthrosis in mandibular reconstruction. By minimizing mechanical confounders, the present study aims to evaluate the impact of bone origin at the intersegmental gap on osseous union.MethodsPatients were screened retrospectively for undergoing multi-segment fibula free flap reconstruction of the mandible including the anterior part of the mandible and osteosynthesis using patient-specific 3D-printed titanium reconstruction plates. Percentage changes in bone volume and width at the bone interface between the fibula/fibula and fibula/mandible at the anterior intersegmental gaps within the same patient were determined using cone-beam computed tomography (CBCT). Additionally, representative samples of the intersegmental zones were assessed histologically and using micro-computed tomography (µCT).ResultsThe bone interface (p = 0.223) did not significantly impact the change in bone volume at the intersegmental gap. Radiotherapy (p < 0.001), time between CBCT scans (p = 0.006) and wound healing disorders (p = 0.005) were independent risk factors for osseous non-union. Preliminary analysis of the microstructure of the intersegmental bone did not indicate morphological differences between fibula–fibula and fibula–mandible intersegmental bones.ConclusionsThe bone interface at the intersegmental gap in mandibular reconstruction did not influence long-term bone healing significantly. Mechanical and clinical properties seem to be more relevant for surgical success.

Does Hallux Valgus Correction with Chevron-Akin Osteotomies Reduce the Length of the First Ray

Category: Bunion; Midfoot/Forefoot Introduction/Purpose: Patients who undergo a successful surgical correction of hallux valgus have relieved toe pain and improvements in foot appearance. Prior studies have shown hallux valgus correction using a distal Chevron osteotomy with a concomitant Akin osteotomy has the potential to reduce forefoot width. There are no studies evaluating if similar changes occur in the length of the foot. The objective of this study is to check if similar reduction occurs in the patient's foot length. Methods: The operating room schedule of Dr. Panchbhavi and Dr. Chen were reviewed for Chevron/Akin Osteotomies from 2017-2022. Patient charts were excluded for contaminant operations of the foot. The preoperative and postoperative radiographs were then evaluated by one medical student with oversight from a Board-Certified Foot and Ankle Orthopedic Surgeon. The Hallux Valgus Angle (HVA), Intermetatarsal Angle (IMA), Metatarsal Span (MS), first/second ray of the foot, and difference between first and second ray were all be measured based on predetermined methods. All variables were analyzed utilizing an unpaired t-test. Results: In total 12 Chevron/Akin patients met the criteria. The results indicated that with chevron/akin osteotomy measurements of the foot were affected in HVA, IMA, MS, and length of first ray relative to second ray. The average results for each of these values were a decrease of 9.2 degrees (SD 4.32), 7.93 degrees (SD 4.33), 11.63mm (SD 2.26) respectively. For results of change in difference of first and second ray, average results for those who underwent Chevron/Akin Osteotomy was -2.23mm (SD 2.23, p = 0.0281). Both changes to MS and length were statistically significant (p &lt; 0.05). Conclusion: Our results were consistent with existing evidence, Chevron with contaminant Akin Osteotomy will produce statistically significant changes in width of the foot; however, also a significant decrease in the length of the first ray relative to the second ray. All measurements were done utilizing PACS software and can be reliably used in clinics as a clinical tool to gauge post- operative outcomes alongside providing adequate patient education on the potential changes in foot length and width.

Formability of curved multilayer laminates via 3D printing using twisted continuous fiber composites

3D printers can print free-form 3D shapes; however, their mechanical properties are unsatisfactory. 3D printers can print 3D shapes freely but the resulting products exhibit unsatisfactory mechanical properties. 3D printing using CFRTP enables the formation of 3D structures with improved mechanical properties. When molding a structure with curved parts using a continuous carbon-fiber-reinforced thermoplastic (CFRTP) 3D printer, the difference in the inner and outer paths of the filament width during arc printing causes the CFRTP filament to become twisted, resulting in poor molding accuracy. In this study, we evaluated the formability of laminates via 3D printing with twisted CFRTP filaments to reduce the inner and outer path differences. And the maximum change in the filament width, which is defined as the maximum width minus the minimum width in one round of fibers, was defined as the forming accuracy. In the case of single-layer printing, the filament width decreased as the twist angle increased, and the forming accuracy (variation in the filament width) decreased. However, when stacking multiple layers, the maximum change in the filament width was the least when the twist angle was 6°. The discovery of the optimum twist angle at 1 K is the most significant aspect of this study and indicates the possibility of an optimum twist angle for various values of K.

Modified 3-Dimensional Alveolar Ridge Augmentation in the Anterior Maxilla: A Prospective Clinical Feasibility Study.

Vertical and horizontal reconstruction of the alveolar ridge, especially in the anterior maxilla, is considered a clinical challenge for dentists. There is still a lack of a standard technique to address the hurdles in 3-dimensional bone regeneration in the anterior maxilla. In this clinical feasibility study, we aimed to modify Khoury's technique by combining the conventional guided bone regeneration standards with the principles of this technique. The autogenous bone blocks were harvested from the retromolar area and grafted into the deficient anterior maxillae by mini-screws, and the gap was filled with xenogenic bone particles. The grafted site was covered with multilayered resorbable collagen membranes. Cone-beam computerized tomographic scans were obtained at the 6-month follow-ups, and the changes in ridge width and height were measured. Five subjects with multiple missing teeth at the anterior maxilla were included. The radiographic outcomes of the 6-month follow-ups revealed 1.2 mm of height and 3.5 mm of width gain. Between the 4- and 6-month visits, approximately 2 mm resorption in height and 0.3 mm in width occurred. No complications occurred. The proposed modification for Khoury's technique can serve as a feasible method in the 3-dimensional reconstruction of the anterior maxilla without additional autogenous bone particles.

Ultrasonographic characteristics of prostate and seminal vesicle glands in developing Murrah buffalo bulls

The study was performed in Murrah buffalo-bull calves to assess the developmental dimensions of the prostate and seminal vesicle (SV) glands from 1 to 30 months of age with transrectal ultrasonography. The width of prostate gland ranged between 1.39±0.07 and 2.65±0.14 cm. The rate of change in the mean width of the gland was gradual and almost same from one to thirty month (P&lt;0.05). The correlation co-efficient between width of prostate gland and age was r2 = 0.73. The mean circumference and length of the SV gland at one month to thirty months of age ranged from 6.14±0.32 to 13.05±0.34 cm and 2.61±0.09 to 6.02±0.27 cm, respectively. The correlation co-efficient between length and age, width and age, and circumference of SV gland and age were r2 = 0.68, r2 = 0.55 and r2 = 0.74, respectively. From this study, it is concluded that the ultrasonographic evaluation of prostate and SV along with growth rate could be very practical tool for the assessment of puberty.

PENGARUH OBESITAS TERHADAP KARAKTERISTIK POLA BERJALAN : LITERATURE REVIEW

Obesity is a global health problem with increasing prevalence worldwide. One aspect of concern is how obesity can affect an individual's gait characteristics, leading to musculoskeletal disorders. Numerous studies have explored the gait characteristics experienced by individuals with obesity. The objective of this literature review is to provide further information on the gait characteristics of individuals with obesity, which can be utilized for the prevention of obesity-related musculoskeletal disorders. The methodology employed in this study is a literature review, creating conclusions from selected data sources from various national and international journals published between 2011 and 2021. The findings reveal that obesity can lead to decreased balance, reduced walking speed, and influence several gait characteristic parameters, such as changes in step length and width, stride length, as well as various angles formed by the knee and ankle joints during walking, resulting in a distinct gait pattern compared to normal gait. Therefore, it can be concluded that individuals with obesity are prone to exhibit an altered gait pattern, which can potentially contribute to musculoskeletal problems such as osteoarthritis.

Morphological Changes of the Mandibular Angle After Orthognathic Surgery with Class III Deformity in East Asia.

The aims of this study were to analyze the morphological changes of the mandibular angle after orthognathic surgery for mandibular setback and investigate related factors. This retrospective study included patients from January 2017 to December 2021 diagnosed with skeletal class III deformity who underwent BSSRO (Group I) or bimaxillary surgery (Group II). Preoperative (T0), within 1month postoperatively (T1), and 6months postoperatively (T2) CT scans were collected from 61 patients to three-dimensionally analyze the proximal segment displacement, the linear and angular changes of the mandibular angle. The gonion points moved posteriorly and laterally (P < 0.001), while the inferior movement was not significant (P = 1.000, P = 0.274). The intergonial width increased by 3.32 ± 1.87mm and 2.34 ± 1.77mm as revealed by T2 CTs, respectively, in Group I and Group II. Mandibular angle decreased in both groups and by 1.41 ± 2.95° in Group I and 1.37 ± 3.41° in Group II. The increase in intergonial width between T1 and T0 was negatively correlated with the preoperative mandibular angle (P = 0.003) and positively correlated with the transverse outward movement of the proximal segment (P < 0.001). After surgery, the intergonial width increased and the inferior and posterior border of the proximal segment flared outward. The changes in intergonial width and mandibular angle were mainly related to the rotation of the proximal segment, which has a certain impact on the aesthetics of the lower face. Therefore, controlling the position of the proximal segment is of vital importance to lessen the changes in the mandibular angle area.Level of Evidence III. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Super-resolution deep neural networks for water classification from free multispectral satellite imagery

Recent years have seen rapid progress in the adoption of fully convolutional neural networks (FCN) to classify optical satellite imagery, made possible by a combination of new FCN architectures, next-generation GPUs, and publicly available satellite imagery from, e.g., the Landsat and Sentinel missions. These satellites offer repeat global coverage at intervals of only a few days at a spatial resolution of ≥10 m, which is sufficient for some but not all applications of interest. A smaller body of literature considers similar tools to classify commercial satellite imagery that offer 1 – 2 orders of magnitude higher spatial resolutions but with limited spatial and temporal coverage. In this work, we develop a super-resolution FCN to achieve the best of both worlds: land cover classification at commercial-level spatial resolutions but with the spatiotemporal coverage of public satellite imagery. To do so, we label 1 – 2 m resolution commercial imagery and use this as training data for super-resolution FCN. As a specific application, we focus on the segmentation of rivers, with the goal of tracking changes in reach-averaged river widths, depths, and discharges over time. We present detailed performance analyses and demonstrate that, surprisingly, we achieve ≳ 90% classification accuracy at meter-scale resolutions from free Sentinel-2 imagery. We extensively validate our model through in situ USGS gage data and ground-truth GPS tracing of river shorelines. By making our super-resolution FCN codes and training weights publicly available, we hope that these tools will be of use to the broader hydrology community and beyond, as the models can be re-trained for other segmentation tasks.

Improved Steganography for IoT Network Node Data Security Promoting Secure Data Transmission using Generative Adversarial Networks

An internet of things (IoT) is an intelligent environment such as homes and smart cities of our country, and IoT improves the new technology implementation for home automation. The problem with security in IoT-based devices is that data transmission and signal passing are easily hacked using encryption and decryption methods. The old technology of the Steganography method does not improve the data hidden in images because encryption and decryption use a 1-bit 0.05-bit store, and low ranges hide the information in images, so that information hides out of the size and bits of the image. The hackers easily hack the hide information pixel by pixel or bit by bit in images. So, need for a proposed system, new technology, or methods. The suggested solution improves data concealment in photos by combining CNN’s deep learning techniques with steganography. The secret information these photographs convey can be shared without drawing hackers’ notice. The data is encrypted before being embedded in the image to increase its security. Steganography messages are frequently encrypted using more conventional methods first, after which the encrypted message is added to the cover image in some manner. The previous algorithm of SFNET algorithm architecture has been divided by segment, the segment based on width, height, and depth changes based improve performances. Existing systems of SFNET and SRNET are compared to the fractal net algorithm to improve the performance of 3 to 1 % of the proposed system.

Mirror Vibration Tolerance Studies in X-ray Free-Electron Laser Oscillator

The X-ray free-electron laser oscillator (XFELO) has received significant attention due to its ability to produce fully coherent, high-brightness, and highly stable X-ray beams. Despite these advantages, the operation of the XFELO can be impeded by the surrounding environment. Specifically, vibrations of the optical components within the cavity can lead to poor alignment, which can diminish the interaction between the light and electrons in the undulator. Consequently, the quality of the output X-rays may be compromised. This study aims to investigate the impact of mirror vibrations on the output laser at various vibration frequencies. Firstly, we develop three single-frequency vibration models at 10 Hz, 0.01 MHz, and 1.1 MHz to investigate the changes in energy, spectral width, beam size, and beam divergence angle of the output laser. Secondly, we build a more complex multi-frequency vibration model based on the single-frequency one to simulate the realistic vibration of the mirror. Finally, we utilize the multi-frequency vibration model to investigate the tolerance limits of the output laser to vibration amplitude at different vibration frequencies of the mirror. The results show that the tolerance of the amplitude near the low and middle frequencies has less effect on the output power, which is approximately 250 nrad or more. However, in certain particular instances, particularly in the vicinity of the resonant frequency, there will be deviations from the tolerance limit. These deviations can result in values that are excessively high or excessively low. The study could prove useful in the future installation of XFELOs.

Numerical study on a coaxial geothermal exchanger equipped with a new inner tube: Entropy generation, thermodynamic irreversibility analysis and exergy efficiency performance evaluation

This paper focuses on the effect of inner tube fitted with CSF of different widths (H = 5–11 mm), thicknesses (W = 1.5–9 mm) and pitches (P = 50–200 mm) on the entropy generation, thermodynamic irreversibility and exergy efficiency performance of CGHE and gives the direction of improvement of CSF geometric parameters. A performance evaluation chart of exergy efficiency was also established to evaluate the exergy efficiency of each working condition. The results show that the assembly of CSF on the inner tube of the CGHE can effectively reduce the heat transfer entropy generation rate S˙gen,h, lowest 67.9% lower than that of the smooth inner tube, but the friction entropy generation rate S˙gen,f is significantly higher, highest being 10.33 times higher than that of the smooth inner tube. Increasing the width H and thickness and decreasing the pitch P both increase the entropy generation rate, but changes in width and thickness have a small effect on entropy, while changes in pitch P have a large effect on entropy, and their W˙loss follow the same pattern of variation as S˙gen. From Be and Ns it is clear that 99% is frictionally irreversible when Re > 30000, and frictional entropy generation is minimized at Re < 15000. When evaluated in terms of heat transfer improvement number NH, the direction of improvement of the CSF geometry parameters should be to increase the width H, thickness W and pitch P. In terms of exergy efficiency, the exergy efficiency for all cases results in greater than smooth inner tube coaxial GHE for the same pumping power and pressure drop conditions, but deterioration occurs for the same mass flow rate.

A Comparative Evaluation of Mandibular Intercanine Arch Width Changes in Class I and Class II Division 1 Malocclusions Treated with Extraction— An Occlusogram Study

A Comparative Evaluation of Mandibular Intercanine Arch Width Changes in Class I and Class II Division 1 Malocclusions Treated with Extraction— An Occlusogram Study

Dynamic selection and evaluation of alternative milling types for railway points

The milled shape of point blades is one of the main factors causing structural problems with railway points (also known as turnouts or switches). Choosing the right type of milling for point blades can improve train running performance. Based on wheel–rail system dynamics, a vehicle–points dynamic model with various milling methods was established, from which a selection and evaluation method for milling was proposed. The service performance of four milling types was compared and combined with point blade robustness to provide a comprehensive evaluation. It was found that a small rate of railhead width change for an oblique tangent point blade resulted in better running performance of trains. The oblique secant point blade caused an abrupt change in the rail layout, which reduced train running steadiness. The railhead widths of longitudinal secant and longitudinal secant–oblique tangent point blades increased quickly, and the corresponding dynamic responses were at an intermediate level. The proposed selection and evaluation method for milling types took into account the dynamic characteristics and structural durability of the points. It will be beneficial in selecting an appropriate milling type for points blades according to their service requirements.

Serial change of femoral and tibial tunnel width after anterior cruciate ligament reconstruction with allograft.

To investigate progressive tunnel widening and its correlation with postoperative outcomes after anterior cruciate ligament (ACL) reconstruction using allografts. Sixty-five patients who underwent ACL reconstruction using a tibialis anterior allograft between 2015 and 2017 were enrolled. Femoral and tibial tunnel widths were measured on anteroposterior (AP) and lateral radiographs immediately and at 3, 6, 12, and 24months postoperatively. Average femoral and tibial tunnel widths in AP and lateral views were calculated at three different measurement points. Tunnel widening was calculated as the difference in tunnel width immediately and 2years postoperatively. The correlation between tunnel widening and the postoperative results was analysed. Tunnel width changes between immediate and 2years postoperatively were as follows, in AP and lateral views, respectively: femur, 3.0mm ± 1.5mm and 2.4mm ± 1.4mm; and tibia, 2.8mm ± 1.4mm and 2.9mm ± 1.5mm. Femoral tunnel widths significantly increased until 1year, but not from 1 to 2years postoperatively. Tibial tunnel width significantly increased until 2years postoperatively. In all tunnels, the increments in tunnel widening decreased over time. Increased knee laxity significantly correlated with greater femoral tunnel widening in AP (r = 0.346, P = 0.006) and lateral views (r = 0.261, P = 0.049). Femoral tunnel widths gradually increased until 1year postoperatively, and tibial tunnel widths increased until 2years after ACL reconstruction with allografts. The tunnel widening rate gradually decreased over time. Femoral tunnel widening of 3.7mm and 3.2mm on AP and lateral views, respectively, were the cut-off values for postoperative knee laxity. Level III.

Hybrid Laser-Arc Welding-Induced Distortion Analysis of Large-Scale Thin-Walled Cruise Ship Structures

Abstract In recent years, there has been increasing use of thin-walled structures with a plate thickness of 6–10 mm in the construction of cruise ships. As one of the important processes of cruise ship construction, hybrid laser-arc welding, combining the advantages of laser welding and arc welding, is increasingly applied in thin-walled cruise ships with the objective of reducing panel deformation. However, due to the weak stiffness of the thin-walled structure with a continuous weld length of 4–16 m, complex welding deformation, e.g., buckling deformation, will be prone to occur. This paper analyzed the deformation behavior of large-scale thin-walled cruise ship structures with the change of weld length, structural width, and plate thickness in the hybrid laser-arc welding process. The buckling mode induced by the welding deformation is predicted based on the combination method of thermal elastic–plastic and inherent strain, as well as experimental verification. By analyzing the deformation behavior with the weld length of 5–15 m, when the continuous weld length exceeds 7.5 m during butt welding of large thin-walled cruise ship structures, the welding deformation mode will change from bending deformation to buckling deformation, while the maximum deformation will be reduced by about 50%. Compared with the buckling mode of the traditional thick-walled structures, with the decrease of plate thickness, the buckling mode of large ship structures will change from wave buckling deformation of the whole structure to wave buckling at the edge of structures.

The Effects of Caffeine and Alcohol on the Electrically Evoked Responses of L. terrestris

Regulation on animal research, largely focused on vertebrates, has led to greater expenses for researchers and institutions. Invertebrate animals, however, are rarely included in regulatory oversight, making experimentation comparatively more flexible and inexpensive. Yet, invertebrates are largely overlooked in neurophysiological research, even though the simplicity of invertebrate nervous system models has its advantages. While somatosensory, visual, and auditory evoked potential may be used for pharmacological and toxicological assessment of drugs in both animals and humans, only minor research carried out on invertebrates generally due to the disregard upon comparison between physiological phases or chromosomes of both invertebrates and humans. This study aims to analyze the viability of Lumbricus terrestris, or the common earthworm, as a potential model for electrical somatosensory evoked potential propagation and for drug safety pharmacology assessment. Varying intensities of electrical stimulation potential from 45 ~ 137 mV and accumulative substance injections up to 300 ul were to be used to evaluate telemetric-recorded changes in the evoked potential of the earthworm, and to track the extent of its reproducibility. Alcohol and caffeine, as they are two of the most commonly consumed chemicals in beverages among adolescents, and much was already known about their neurological effects, making the earthworm model’s response to foreign substances evaluable. Numerical changes in latent period, peak point, trough point and wave width of the evoked potential elicited by each substance were analyzed using regression analysis. We found that our peak point and wave width evoked potential parameters were highly indicative of the earthworm’s capability as an evoked potential invertebrate model, especially because responses exhibited expected outcomes of the excitable and inhibitory effects of caffeine and alcohol with high reproducibility.

Three-dimensional polarization effects in optical tunneling.

We consider the three-dimensional (3D) polarimetric properties of an evanescent optical field excited in the gap of a double-prism system by a random plane wave. The analysis covers the case of frustrated total internal reflection (FTIR), i.e.,optical tunneling, and relies on the characteristic decomposition of the 3×3 polarization matrix. We find in particular that, for any incident partially polarized plane wave, the evanescent field inside the gap is necessarily in a nonregular, genuine 3D polarization state. We also show that the 3D polarimetric properties of the field at the second boundary are sensitive to the changes of the gap width and that the relevant effects occur for the smaller widths when the angle of incidence of the plane wave becomes larger. The results of this work uncover new aspects of the polarimetric structure of genuine 3D evanescent fields and may find applications in near-field optics and surface nanophotonics.

A Cephalometric Study of Pharyngeal Dimensions Following Twin Block Treatment

Objective: To assess and compare changes in pharyngeal airway widths (PAW) using lateral cephalograms before and after treatment with a removable twin block appliance. Methodology: Lateral cephalogram records were taken before (T0) and after (T1) the treatment of 50 Class II subjects (ANB&gt;40; 28 males, 22 females; mean age 12.6 years) using the removable twin block appliance. The study period spanned 12 months. Airway volumes, including upper airway width (UAW), middle airway width (MAW), and lower airway width (LAW), were compared between T0 and T1. The data were analyzed using SPSS statistical software via paired t-test. A p-value of ?0.05 was considered statistically significant. Results: A total of 50 patients were included in the study, and airway changes were analyzed at two different times prospectively (T0 and T1). The male-to-female ratio was 1:0.8 (44% females, 56% males). The mean upper airway width (UAW) at T0 and T1 was 14.04 mm and 15.3 mm, respectively. The mean middle airway width (MAW) at T0 and T1 was 8.8 mm and 11.8 mm, respectively, while the mean lower airway width (LAW) at T0 and T1 was 7.5 mm and 10.2 mm, respectively. The mean age was 12.6 years, and the mean BMI was 21. The mean SN-Md angle was 31.8 degrees. At T1, a significant increase in airway volume was observed in upper airway width (UAW), middle airway width (MAW), and lower airway width (LAW) (P=0.000). Conclusion: Treatment with the Twin Block Appliance in growing subjects resulted in an increase in the overall posterior pharyngeal airway volumes.

In-hospital changes in the red blood cell distribution width and mortality in critically ill patients with heart failure.

A high red blood cell distribution width (RDW) at admission or discharge is associated with a worse prognosis in hospitalized patients with heart failure (HF), and the prognostic value of the in-hospital change in RDW (∆RDW) remains debatable. We included 5514 patients with critical illness and HF from the MIMIC-IV database. The ΔRDW was calculated by the RDW at discharge minus that at admission. Clinical outcomes included all-cause mortality at 90day, 180day, and 1year after discharge. The median age of the patients was 73.91years, and 46.37% were women. Kaplan-Meier curve and Cox regression analyses were used to examine the association between the ΔRDW and all-cause mortality at different time points. A multivariable Cox proportional hazard model showed that the ΔRDW (per 1% increase) was independently associated with all-cause mortality at 90day, 180day, and 1year after adjusting for confounding factors (hazard ratio [HR]=1.17, 95% confidence interval [CI]=1.13-1.21, P<0.001; HR=1.17, 95% CI=1.14-1.20, P<0.001; and HR=1.18, 95% CI=1.15-1.20, P<0.001, respectively). Restricted cubic splines showed a non-linear relationship between the ΔRDW and the risk of clinical outcomes. High ΔRDW was associated with a high risk of mortality at different time points. A subgroup analysis showed that this positive association remained consistent in pre-specified subgroups. Our study suggests that an increased RDW during hospitalization is independently associated with short- or long-term all-cause mortality in critical-ill patients with HF.