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Staff Education In Standardizing A Nurse-Led Fall Prevention Bundle To Reduce Inpatient Falls In Teleneurology Units, Tiffany Scott

Walden Dissertations and Doctoral Studies

Due to complex neurological deficits that raise the risk of falls, falls among persons admitted to inpatient tele-neurology units represent a substantial and continuous problem in nursing practice. A preliminary evaluation conducted at the project site revealed inconsistent fall prevention procedures, inconsistent use of risk assessments, and a lack of a standardized, evidence based strategy to lower fall risk in this especially susceptible group. A practice focused investigation into whether the adoption of a standardized, nurse led fall prevention bundle would improve staff adherence to fall prevention protocols and lower the incidence of inpatient falls over a six month period …

Isaiha Duckket V. The State Of Nevada, 142 Nev. Adv. Op. 9 (Feb. 05, 2026), Adrienne Jack-Sands

Nevada Supreme Court Summaries

In Duckket v. State, the Supreme Court of Nevada found no error in allowing a criminal defendant to represent himself despite multiple competency evaluations before and during trial, nor was his right to a speedy trial infringed when none of the delays were caused by the State.

Obesogenic Behaviors During Structured Periods Among Children And Adolescents With Intellectual And Developmental Disabilities: A Systematic Review And Meta-Analysis, Keagan P. Kiely, Keith Brazendale, Mckenna Hill, Sarah Burkart, Michael Beets Med, Mph, Phd, Elizabeth L. Adams Phd, Bridget Armstrong, Christine St. Laurent, Abigail L. Hogan Ph.D., James W. White Iii, Olivia Finnegan, Joshua Culverhouse, Anthony Holmes, Robert Glenn Weaver Med, Phd

Faculty Publications

Background:

Children and adolescents with intellectual and developmental disabilities (IDD) are at greater risk for obesity and poor obesogenic behaviors (e.g., physical activity, screen time, diet, sleep) than their typically developing counterparts. The Structured Days Hypothesis (SDH) suggests that in typically developing children and adolescents, obesogenic behaviors worsen during periods of reduced structure (e.g., weekend or summer vacation). However, children and adolescents with IDD have unique factors that may alter how structure (i.e., pre-planned, segmented, adult supervised, out-of-home programs) influences obesogenic behaviors. Therefore, the objective of this systematic review and meta-analysis is to examine obesogenic behaviors during periods of more …

Review Of Research On Ecological Protection Technologies For Highway Subgrade Slopes, Zhang Rui, Li Wangjun, Gao Qianfeng, Chen Bo, Gong Yi, Hou Yudong, Zhang Xiwei

Journal of China & Foreign Highway

Safety, durability, and green low-carbon performance are key requirements for the development of highway slope engineering. Given the shortcomings of conventional masonry slope protection and vegetation-engineering composite systems with respect to construction duration, construction safety, and environmental impacts, this paper presents a systematic review of ecological protection technologies for highway subgrade slopes. The working mechanisms of typical ecological protection technologies, such as plant slope protection and attached-type slope protection, were systematically analyzed. Important Chinese and international research results on these technologies were summarized. The slope protection performance of different ecological protection technologies was discussed in depth, and future development trends …

Slope Reliability Analysis Based On Iwoa-Svm, Wang Jinfeng, Fan Shengtong, Xie Haibo

Journal of China & Foreign Highway

To address the difficulties traditional slope reliability calculation methods face in considering the uncertainty among multiple variables and the large computational burden, this paper proposed a slope reliability analysis method based on the improved whale optimization algorithm (IWOA) and support vector machine (SVM). First, the basic theory of SVM was described. The differential mutation strategy and adaptive weight factor were introduced to improve the whale optimization algorithm (WOA), and the performance of the IWOA was tested. Then, the key parameters of SVM were optimized based on the IWOA, and the slope reliability analysis model was constructed. Finally, by taking a …

Numerical Simulation Analysis Of Stiffness Reduction Effect For Pipe-Combination Piles, Chen Xiangyi, Wang Yanhua, Zhou Dequan, Wang Chuangye, Hu Hanqing

Journal of China & Foreign Highway

In order to investigate the mechanism of bending stiffness reduction in the pipe-combination (PC) piles, Abaqus was employed to establish a numerical finite element model considering the interaction between lock joints. The variation in bending stiffness of PC piles was analyzed under different factors such as lock joint friction coefficient, pile head constraints, and combination methods, and the influence of neutral axis displacement on the stiffness of PC piles was analyzed through theoretical derivation. The results show that increasing the friction force between lock joints can effectively mitigate the bending stiffness reduction effect of PC piles. When the lock joints …

Stability Analysis Of Expansive Soil Slope Excavation In Overlying Rock Layers In Alpine Regions, Zhang Dawei, Mou Chao, Cui Guangyan, Li Xiaoshuang, Ding Yuanyuan, Zhang Wei, Qiao Jiachen

Journal of China & Foreign Highway

Based on the slope project of Zhangbei‒Shangyi Expressway, indoor tests were conducted to obtain the mechanical parameters of rock and soil layers, variation law of shear strength of expansive soil with different number of cycles in dry-wet-freeze-thaw conditions was studied, and variation characteristics of mechanical parameters were revealed to deeply analyze the stability of expressway cutting slope excavation in the condition of expansive soil in overlying rock layers in alpine regions. By adopting MIDAS/GTS (SRM) software, the original slope excavation and support scheme of increasing the flattened down slope were simulated, and the improvement scheme of reducing the load by …

Review Of Study On Performance Of Interlayer Bonding Of Concrete Bridge Pavements, Lyu Songtao, Yang Dingling, Lu Weiwei, Duan Haihui

Journal of China & Foreign Highway

To clarify how interlayer bonding performance of cement concrete bridge decks affects the durability of bridge deck pavements and to identify the technical methods, research challenges, and future development trends for improving interlayer bonding performance, the research progress on the interlayer bonding performance of bridge deck pavements in China and abroad was reviewed. First, the characterization models and bond failure modes of the existing interlayer bonding state of bridge deck pavements were summarized, and the influencing factors of interlayer bonding performance and their working mechanisms were analyzed. Second, current evaluation methods and indices for interlayer bonding performance were discussed, and …

Effect Of Calcined Constructio N Spoil On Mechanical And Shrinkage Proper Ties Of Uhpc, Chang Cheng, Wang Xufu, Wang Yu, Zhong Yuan, Zhang Bofa, Tang Yuxiang

Journal of China & Foreign Highway

This study utilized calcined construction spoil from Guangdong as a partial replacement for cement in the preparation of green ultra-high-performance concrete (UHPC). The effects of different calcined construction spoil content levels (0%, 5%, 10%, 15%, and 20%) on the workability, mechanical property, and shrinkage behavior of UHPC were investigated. Additionally, a life cycle assessment (LCA) was performed to quantify carbon emissions. The results indicate that the incorporation of calcined construction spoil improves the fluidity of the UHPC mixture. At the age of 3 days, the effect of calcined construction spoil on the mechanical properties of UHPC is limited. However, at …

Influence Mechanism Of Admixtures On Strength Of High Volume Fly Ash, Liu Yang, Yang Jie, Yuan Heping, Lu Naiwei, Luo Dong

Journal of China & Foreign Highway

This paper investigated the effects of nano-silica (NS), metakaolin (MK), and silica fume (SF) as supplementary cementitious materials on the compressive strength of mortar with high volume fly ash. Through a comparative analysis, the study established the influence patterns of single and combined additions of various cementitious materials on the compressive strength of the mortar. The microstructure and reaction mechanisms of the specimens were analyzed using methods such as scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermogravimetric analysis (TG). The results indicate that when NS or MK is used alone, the compressive strength of fly ash mortar at 28 …

Aggregate Crushing Behavior Of Asphalt Mixture Incorporating Waste Glass And Its Effect On Performance, Li Yiming, Li Xinze, Cheng Peifeng, Chen Xiule, Guo Shuang

Journal of China & Foreign Highway

Utilizing crushed waste glass as a substitute for natural aggregate in asphalt mixtures presents significant economic potential and environmental protection advantages. However, compared with natural aggregates, the low-strength glass aggregates are prone to crushing under load, necessitating an investigation into the crushing behavior of glass aggregates under load and its influence on the performance of asphalt mixture. In this paper, the crushing behavior of the mixture was analyzed through rotational compaction test and digital image processing technology, using the aggregate crushing index of the mixture as an indicator to evaluate its road performance. The results show that as the number …

Research On Properties Of Glass Sand Shotcrete, Gao Qingshui, Ma Kaikai, Guo Lingz Hi, Liu Hongtian, Huang Shimei, Han Song, Hu Peng

Journal of China & Foreign Highway

In order to study the effect of glass sand on the properties of shotcrete, shotcrete was prepared by using glass sand instead of natural sand. Through the compressive strength test, splitting tensile strength test, drying shrinkage test, and chloride ion erosion test, the effects of different amounts of glass sand on the strength, shrinkage, and durability of shotcrete were analyzed. The results show that:① The 50% glass sand replacement rate has the least effect on the strength of shotcrete, and its 28-day compressive strength is only reduced by 2.19% compared with the control group; ② Glass sand can improve the …

Long-Term Performance Of Recycled Asphalt Mixtures With Various Frap Contents, Zhang Yongyuan, Meng Weihong, Yang Xin, Wu Hao, Zhan Yiqun, Xu Haoda

Journal of China & Foreign Highway

At present, in the refined recycling and utilization of asphalt pavement, the utilization rate of fine recycled asphalt aggregates (FRAP) is much lower than that of coarse recycled asphalt aggregates (CRAP). This not only leads to resource waste but also limits the larger-scale application of RAP in recycled asphalt mixtures. Therefore, this study systematically investigated the impact of FRAP content on the long-term performance of recycled asphalt mixtures through the semi-circular tensile (SCT) tests. Based on the energy evolution laws of strain energy (elasticity and plasticity) and surface energy during material fracture processes, corresponding improvement measures were proposed according to …

Research On Compaction Characteristics And High Compaction Paving Technology Of Ac-13 Steel Slag Asphalt Concrete, Wang Yaping, Yi Long, Zheng Wenzhang, Gu Meng, Wang Juyang

Journal of China & Foreign Highway

To solve the problems of difficult compaction and high porosity of steel slag asphalt concrete, a rotary compactor was used to analyze the compaction characteristics of steel slag asphalt concrete from the aspects of gradation, compaction temperature, and compaction energy index. By conducting orthogonal experiments in the test section, the influence of paving speed, vibration frequency of the screed, and vibration compaction rate of the hammer on the compaction degree of paving was analyzed, and the paving construction parameters of steel slag asphalt concrete were optimized. Research shows that the use of a median finer gradation can accelerate compaction rate, …

Experimental Analysis Of High- And Low-Temperature Rheological Properties Of Revulcanized Rubber Powder-Sbs Composite Modified Asphalt, Feng Hao, Yang Zhaodong, Feng Xuran, Lin Bin, Yao Ailing, Wang Kang

Journal of China & Foreign Highway

This paper aims to explore the performance recovery of desulfurized rubber powder in the desulfurized rubber powder-SBS composite modified asphalt after revulcanization treatment. By using 18% rubber powder-2% SBS composite modified asphalt, a desulfurized rubber powder-SBS composite modified asphalt was first prepared via a microwave pyrolysis desulfurization process. Subsequently, a vulcanizing agent was added to the system to prepare the revulcanized rubber powder-SBS composite modified asphalt. Experiments determined the optimal microwave pyrolysis desulfurization duration for rubber powder to be 5 min, and the optimal sulfur dosage was 6% by mass of the desulfurized rubber powder. A comparative analysis of the …

Influence Mechanism Of Maintenance Rails On Vortex-Induced Vibration Of Twin Steel Box Girders, Sun Hongxin, Hu Lei, Chen Wei, Huang Wenjun

Journal of China & Foreign Highway

Maintenance rails are an important passage for the safe operation and maintenance of bridges, significantly affecting the vortex-induced vibration (VIV) performance of main girders. A twin steel box girder cable-stayed bridge with the main span of 658 m was taken as the engineering background to investigate the influence mechanism of maintenance rails on the VIV performance of twin steel box girders. Combined with section model wind tunnel tests and two-dimensional fluid-structure interaction CFD numerical simulations, the vertical VIV performance of the main girder sections with and without maintenance rails was studied, and the mechanism of maintenance rails' influence on VIV …

Study On Structural Schemes Of Comb-Type Steel-Concrete Composite Girder Bridges, Xiong Zhihua, Pan Zhenhua, Di Di, Li Jun, Cheng Litao, Liu Hongyu

Journal of China & Foreign Highway

To investigate the structural performance of novel comb-type steel-concrete composite girder bridges (with a span of 8‒40 m) and optimize their design schemes, this paper took the live load structural efficiency index as the indicator and comprehensively considered factors such as structural mechanical performance, engineering economy, and construction convenience. It also studied the mechanical performance of the negative bending moment zone and the seamless joint of the integral abutment using numerical simulation. The results show that ① for comb-type steel-concrete composite girder bridges with a span of 8‒20 m, the three-girder scheme is recommended; for those with a medium span …

Matching Analysis Of Cantilever Assembly For Wide Steel-Uhpc Composite Girder In Cable-Stayed Bridge, Chen Changsong, Wang Cong, Huang Gen

Journal of China & Foreign Highway

To control the deformation difference bet ween the to-be-installed and installed segments during the cantilever assembly of wide steel-UHPC composite girders in cable-stayed bridges and achieve precise matching, this paper first introduced a matching method combining pre-hanging cables with crane unloading. Then, by taking the Guanyin Temple Yangtze River Bridge (a super-kilometer-span cable-stayed bridge with wide steel-UHPC composite girders) as the engineering background, a locally refined finite element model was established to analyze the vertical deformation laws of the matching sections during the cantilever assembly construction phase. Finally, the effects of matching sequence, pre-hanging cable force, and crane unloading ratio …

Study On Maximum Vertical Prestress Spacing Of Pc Continuous Box Girder Bridges, Wang Fan, Lu Xiaolei

Journal of China & Foreign Highway

To clarify the distribution pattern of the stress field between vertical prestresses in large-span PC continuous box girder bridges and the layout criteria for the maximum vertical prestress spacing, an analytical solution for the web stress field under the action of two prestressed tendons was derived. On this basis, the distribution patterns of the vertical stress field under various prestress spacings and sectional heights were analyzed. Under the premise of ensuring a high-stress state in the web, this study proposed recommendations for the maximum prestress spacing by introducing the sectional stress uniformity index, addressing the blind zone of prestress induced …

Refined Finite Element Analysis Of Shrinkage And Creep In External Prestressed Reinforced Concrete Beams, Li Xianyang, Deng Jihua, Liang Luyi, Peng Jianxin

Journal of China & Foreign Highway

To accurately analyze the shrinkage and creep effects in external prestressed reinforced concrete beams, a method was proposed for analyzing the shrinkage and creep of such beams based on refined finite element analysis. First, considering the force characteristics of the external prestressed tendons as constant-strain components, a differential treatment was performed on the geometric and nodal displacement relationships between the external prestressed tendons at the anchorage and deviation points and the concrete beam. Using the principle of virtual work, the element stiffness matrix that needed to be iteratively solved was derived for the external prestressed tendons. Second, based on the …

Wind Tunnel Test On Shielding Effect Of Arch Ribs For Irregular Bent Arch Bridges, Hou Xu, Wang Xuejun, Liu Yaokun, Long Hang, Wen Qing, Hua Xugang

Journal of China & Foreign Highway

Bent arch bridges are a kind of novel structural form, and the components for spatial rod structures with densely arranged components exert significant shielding effects on wind load. By taking an irregular bent arch with densely arranged arch rib components as the engineering background, wind tunnel tests of the sectional model of two square arch ribs and two rectangular arch ribs with and without flanges were conducted to obtain the influence of center distance on the aerodynamic drag and aerodynamic lift coefficient of arch ribs within the wind direction angles of 0°‒90°. Meanwhile, the characteristics of the shielding effect of …

Identification Of Cable-Stayed Bridge Damage Based On Anchor Point Vibrations Caused By Moving Vehicle Loads And Through Machine Learning, Zeng Youyi, Du Jiarui, Zhang Jiabin, Wang Jinhao, Fan Jirong

Journal of China & Foreign Highway

The vibration response data on the bridge deck under the load of moving vehicles contains a wealth of information about the geometric parameters of the bridge, enabling effective identification of structural damage. Machine learning can extract key information from the response data and capture linear relationships within it. Taking the Shaozhou Bridge as the research background, this study established a finite element model for a cable-stayed bridge and applied loads from two-axle trucks with various vehicle parameters to the cable-stayed bridge model under different small damage conditions to simulate the vibration response of the cable-stayed bridge model under moving load. …

Cantilever Construction And Control Of Long-Span Steel-Concrete Hybrid Continuous Box Girder Bridges With Variable Sections, Lyu Haijun, Tang Liang, Zhou Ye, Qi Le

Journal of China & Foreign Highway

This study aims to solve the overall lifting difficulty of mid-span steel box girders in steel-concrete hybrid continuous box girder bridges with variable sections under special environments, providing guidance for the design and construction control of such bridges. By analyzing the external measures adopted by different construction methods and their influence on the bridge-building state of the structure, theoretical research and real bridge calculations were conducted on the key influencing factors and control points of the sub-segment cantilever assembly method. The results indicate that the effect of temporary load and temporary external prestressing cannot be offset after the system transformation, …

Stress Analysis Of Cable-Girder Anchorage Structure During Construction Phase Of A Hybrid Girder Cable-Stayed Bridge, Wang Zhiguo, Xiong Zhancheng, Liu Yuxiong, Shi Jialin

Journal of China & Foreign Highway

The delayed casting technology of wet joints can significantly shorten the construction period of hybrid girder cable-stayed bridges. To ensure the safety of the stress in the cable-girder anchorage structure of the steel anchor box type under this new process, this paper took a large-span hybrid girder cable-stayed bridge as the research object. It studied the stress distribution pattern and the sensitivity of component parameters in the anchorage zone during construction. Firstly, the construction cable forces were obtained by establishing a full-bridge grid model using the finite element software Midas Civil. Combined with the Abaqus software, a detailed local model …

Smoke Control Wind Speed Of Transversal Double-Source Fire In Road Tunnel Sections, Gao Hengchao, Tao Jiaqing, Chen Xun, Wang Feng

Journal of China & Foreign Highway

The numerical calculation method was adopted to conduct an in-depth analysis of the control wind speed, smoke back-layering length and smoke temperature of dual-source fire in road tunnel sections and thus study the smoke control method of dual-source fire in road tunnel sections. The results show that under the dual-source fire scenarios, due to the dispersion of fire sources, the critical wind speed is mainly controlled by two fire sources. When the power of the two fire sources is the same or similar, there is a certain superposition effect between the two fire sources, with the critical wind speed subject …

Study On Pit Corner Effect Of Open-Cut Foundation Pit Considering Coupling Action Of Internal And External Corners, Feng Wei, Zhou Kun, Li Hailong, Wu Xing, Huang Fu

Journal of China & Foreign Highway

At present, most studies on the spatial effect of open-cut foundation pits focus only on the influence of either internal corners or external corners on the supporting structure, while the coupling effect of internal corners or external corners on the deformation characteristics of the retaining structure and surrounding soil has not been thoroughly investigated. Based on the Gongming Square open-cut foundation pit project of Shenzhen Metro Line 13, this study constructed a three-dimensional numerical model. The influence of the coupling action between the internal and external corners during excavation on the deformation of the retaining structure was analyzed. The deformation …

Analysis Of Cooling Effect Of Tunnel Surrounding Rock Construction Based On Spray Cooling, Meng Lingchen

Journal of China & Foreign Highway

To study the cooling effect of spray cooling on the surrounding rock during the construction of an extra-long tunnel, based on the Zhongliangshan Tunnel Project, numerical simulations were performed to analyze the characteristics of average temperature variation in the tunnel under different spray rates, the evaporation efficiency and temperature drop characteristics of spray under different humidity levels, and the average temperature variation characteristics of the tunnel section under different spray positions. The measured values of the air temperature in the tunnel section were compared with the simulated values. The results indicate that:① With the increase of the spray rate, the …

Research On Multi-Object Detection Algorithm For Routine Highway Inspection Based On Uav, Ma Tao, Tian Meijuan, Wang Zhipeng, Dong Jiazhi, Zhu Junqing

Journal of China & Foreign Highway

To address the problems of insufficient detection accuracy and poor real-time performance caused by small detection objects, complex backgrounds, and large calculation volume in routine highway inspection tasks using unmanned aerial vehicles (UAVs), this paper proposed an improved UAV-based routine highway inspection algorithm relying on YOLOv 11n, YOLOv 11-UR. The algorithm incorporated the multi-level channel and attention (MLCA) mechanism into the backbone network to fuse channel and spatial dimension information, integrate local and global receptive fields, and effectively enhance feature expression capability. It achieved a significant improvement in detection accuracy with only a small increase in parameters. In the Neck …

Comparative Study On Visual Recognition Distances Of Chinese And British Symbolic Traffic Signs And Guide Signs For Chinese Drivers, Wang Heng, Yuan Wanfu, Ren Jiaming, Pei Weihao, Li Weidong, Yang Zhen

Journal of China & Foreign Highway

To reveal the differences in drivers' visual recognition of traffic signs in a transnational context and provide a methodological reference for research on visual recognition distance differences, this study, based on the SILAB driving simulation platform, used triangular slippery road signs, circular end-of-speed-limit signs, and guide signs as examples to compare and analyze the differences in the relationship between sign size and visual recognition distance for Chinese drivers regarding Chinese and British traffic signs. In the experiment, the information content and location of the same types of Chinese and British traffic signs were kept consistent, and the sign sizes were …

Technical Framework Design For Unmanned Roller Cluster Operations, Jin Yongquan, Wu Difei, Fu Yingli, Liang Wenyao

Journal of China & Foreign Highway

To improve the efficiency and safety of road construction and address problems such as harsh environments, unstable construction quality, and high labor costs in traditional road construction, a technical framework for unmanned roller cluster operations was proposed. The framework consists of three modules:underlying hardware control, trajectory planning calculation, and cooperative operation scheduling, realizing unmanned compaction operations for the roller cluster. Specifically, the underlying hardware control module achieves unmanned control, positioning, and communication by retrofitting active rollers; the trajectory planning calculation module is used to plan the operation trajectories of unmanned rollers; the cooperative operation scheduling module coordinates the operation process …