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The rapid development of digital technology has changed our lives, requiring organizations to constantly invest in the latest technological infrastructure. However, organizations realize that the successful implementation of digital transformation also depends on employees' acceptance of technology. Techno-training is a useful method for employees to accept technology; however, it causes complex psychological and behavioral reactions. This study aims to prove that technology-related beliefs play an important role in the relationship between techno-training and working outcomes based on Social Cognitive Theory and Job Demand-Resource Theory. Specifically, with 476 employees as research participants (50.2% males), this study developed a framework that illustrates the impacts of techno-training on task performance and analyzes potential chain mediating effects. Employees completed the Techno-training Scale, Techno-efficacy Scale, Techno-expectancy Scale, Techno-uncertainty Scale, Techno-integration Scale, and Task Performance Scale, with the path analysis results showing that techno-efficacy, techno-expectancy, techno-uncertainty, and techno-integration are chain mediators. Techno-training can influence employees' recognition and attitudes toward technology, changing task performance and bringing financial returns to organizations. Based on these findings, detailed theoretical and practical implications are discussed. Additionally, these findings contribute to a deeper understanding of implementing effective training and suggest that organizations value employee well-being. [ABSTRACT FROM AUTHOR]

Perceived overqualification has been studied by researchers but limited research focuses on the role of leader overqualification. Based on relative deprivation theory and social exchange theory, this article introduces employees' perceived leader overqualification to provide insight into whether, when, and how perceived overqualification influences speaking up. We conducted two studies to empirically test our hypotheses. In Study 1, data collected from 207 employees over two phases supported our hypotheses. Also, in Study 2, 3 wave time-lagged research design and a sample of 576 were utilized to enhance the robustness of the findings. Our results show that employees' perceived leader overqualification moderates the relationship between employee perceived overqualification and speaking up. Furthermore, this moderation is mediated by trust in leader. Specifically, when overqualified employees perceived a lower level of leader overqualification, they were more unlikely to trust their leaders, which in turn, could decrease speaking up. Together, the findings suggest that employees' perceived leader overqualification is a crucial factor for overqualified employees to have extra-role behaviors. The article includes a discussion of the findings' implications for theory, practice, and future research. [ABSTRACT FROM AUTHOR]

The Internet of Things (IoT) paradigm, by transforming physical devices into innovative items, affects every aspect of our daily lives. It has brought a slew of evolutionary and revolutionary services that were almost impossible to imagine until recently. The numerous services and applications offered by IoT cover numerous fields, such as personal healthcare, urban life, energy management, and manufacturing. A tremendous amount of data is produced to reach valuable information and meet users' needs. In addition, since the number of services and applications is increasing rapidly, an efficient method to fulfill the growing demands in different application domains becomes challenging. To handle the mentioned problems, task scheduling mechanisms have a significant influence. Despite the importance of these methods in the IoT, an in-depth and systematic review of the current works in this area is clearly lacking. Therefore, we aim to overcome this gap by adopting an organized manner. In fact, this paper aims to specify the challenging problems in IoT task scheduling, highlight the effective works, and outline some hints for upcoming studies. [ABSTRACT FROM AUTHOR]

Speeded up robust feature (SURF) is one of the most popular feature-based algorithms handling image matching. Compared to emerging deep learning neural network-based image matching algorithms, SURF is much faster with comparable accuracy. Currently, it is still one of the dominant algorithms adopted in majority of real-time applications. With the increasing popularity of video-based computer vision applications, image matching between an image and different frames of a video stream is required. Traditional algorithms could fail to deal with live video because spatiotemporal differences between frames could cause significant fluctuation in the results. In this study, we propose a self-adaptive methodology to improve the stability and precision of image–video matching. The proposed methodology dynamically adjusts threshold in feature points extraction to control the number of extracted feature points based on the content of the previous frame. Minimum ratio of distance (MROD) matching is integrated to preclude false matches while keeping abundant sample sizes. Finally, multiple homography matrix (H-Matrix) are estimated using progressive sample consensus (PROSAC) with various reprojection errors. The model with lowest mean square error (MSE) will be selected for image-to-video frame matching. The experimental results show that the self-adaptive SURF offers more accurate and stable results while balancing single frame processing time in image-video matching. [ABSTRACT FROM AUTHOR]

A selective and sensitive fluorescence biosensor is described for determination of microRNA-167 using fluorescent resonant energy transfer (FRET) strategy. The FRET system comprises carbon dots (CDs, donor) labeled with probe DNA (pDNA) and polydopamine (PDA)-coated Fe3O4 nanoparticles (Fe3O4@PDA NPs, acceptor). The CDs-pDNA can be absorbed onto the surface of Fe3O4@PDA NPs because of the strong π interaction between pDNA and PDA. With the enhanced adsorption ability of Fe3O4@PDA NPs by Ca2+, the fluorescence intensity of CDs at 445 nm (excitation at 360 nm) is quenched. In presence of microRNA-167, the hybridized complex of CDs-pDNA-microRNA-167 will be released from the surface of Fe3O4@PDA NPs due to the weak π interaction of the complex and PDA. This results in the fluorescence recovery of CDs. By application of twice-magnetic separation, the biosensor shows a wide linear range of 0.5–100 nM to microRNA-167 with a 76 pM detection limit. The method was applied to the determination of microRNA-167 in samples of total microRNA extractions from A. thaliana seedlings, and the recoveries ranged from 96.4 to 98.3%. [ABSTRACT FROM AUTHOR]

Rearrangement reactions have attracted considerable interest over the past decades due to their high bond-forming efficiency and atom economy in the construction of complex organic architectures. In contrast to the well-established [3,3]-rearrangement, [1,3] O-to-C rearrangement has been far less vigorously investigated, and stereospecific [1,3]-rearrangement is extremely rare. Here, we report a metal-free intramolecular hydroalkoxylation/[1,3]-rearrangement, leading to the practical and atom-economical assembly of various valuable medium-sized lactams with wide substrate scope and excellent diastereoselectivity. Moreover, such an asymmetric cascade cyclization has also been realized by chiral Brønsted acid-catalyzed kinetic resolution. In addition, biological tests reveal that some of these medium-sized lactams displayed their bioactivity as antitumor agents against melanoma cells, esophageal cancer cells and breast cancer cells. A mechanistic rationale for the reaction is further supported by control experiments and theoretical calculations. Stereospecific [1,3]-rearrangements are rarely reported method to efficiently build complex organic architectures. Here, the authors describe a metal-free intramolecular hydroalkoxylation/[1,3]-rearrangement sequence affording medium-sized lactams with wide scope, also in an asymmetric fashion. [ABSTRACT FROM AUTHOR]

Celecoxib, a selective cox-2 inhibitor, has been shown to prevent the heterotopic ossification following total hip arthroplasty. However, the effects of celecoxib on heterotopic ossification at other locations remain unclear. This study aimed to investigate the effect of celecoxib on heterotopic ossification in the rat model with Achilles tenotomy. Forty male Sprague-Dawley rats, which were randomly divided into 2 groups ( n = 20), underwent midpoint Achilles tenotomy on left legs through a posterior approach under aseptic condition. Experimental group was treated with the saline solution of celecoxib (10 mg/kg) per day, while control group was treated by normal saline (0.9%). At 3, 5 and 10 postoperative weeks, all animals were examined by X-ray to assess new bone formation in the Achilles tendon. At 10 weeks after surgery, all animals were killed and Achilles tendons were taken for hematoxylin-eosin (HE) and immunohistochemical staining. Heterotopic ossification developed in 3 rats (15%) in experimental group and 20 rats (100%) in control group by postoperative 10 weeks. The incidence of heterotopic ossification was significantly lower in experimental group than in control group ( P < 0.05). Our findings suggest that celecoxib inhibits HO development in rat model with Achilles tenotomy. [ABSTRACT FROM AUTHOR]

The polyamide microcapsules for the electrophoretic display have been prepared via interfacial polymerization. The core material of the microcapsules is electrophoretic fluid consisted of pigment phthalocyanine green G (CAS No. 1328-53-6) modified with octadecylamine, tetrachloroethylene, and polyoxyethylene octylphenol ether (OP-10). The wall of the polyamide is synthesized from paraphthaloyl chloride and diethylenetriamine. FT-IR indicated that octadecylamine was bonded to pigment phthalocyanine green G with the hydrogen bond. The effect of the amount of octadecylamine on the dispersibility of the pigment suspended in tetrachloroethylene was investigated. Compared to the unmodified pigment, the dispersibility of the modified pigment was improved by 66.7%. The modified pigment migrated to the positive electrode under the direct voltage and the electric response time was about 85 s in 20 V/mm. The average particle size of microcapsules decreased from 834.5 to 258.2 nm as the dosage of OP-10 increased, and the microcapsule yield reached maximum of 83.5% at the OP-10 concentration of 1.5 wt%. With the reduction of the core/wall weight ratio in the range from 1:6 to 1:14, the average particle size improved from 267.4 to 554.4 nm. However, the maximum of the microcapsule yield was 87.6% at the core/wall weight ratio of 1:10. The microcapsule yield reached a peak of 87.6% as the pH value was 12. The average particle size of the microcapsules that obtained at 25 °C was 327.4 nm, which was smaller than those prepared in other temperatures. The formed polyamide microcapsules had a regular spherical shape. [ABSTRACT FROM AUTHOR]

Purpose: Our aim was to compare the effect of internal vs external fixation for unstable distal radius fractures regarding postoperative complications, clinical results and radiological outcomes.Methods: We selected PubMed; Cochrane Library; EMBASE; BIOSIS; Ovid and the relevant English orthopaedic journals and pooled data from ten eligible randomised controlled trials containing 738 patients to conduct a subgroup analysis according to different periods of follow-up. Our aim was to summarise the best available evidence.Results: Results showed that compared with external fixation, internal fixation led to significantly fewer total surgical complications [95% confidence interval (CI) 0.39-0.81, P = 0.002] and reduced the incidence of pin-track infections (95% CI 0.08-0.46, P = 0.0002) after a one year follow-up. For clinical results, grip strength (95% CI 1.59-8.25, P = 0.004), supination (95% CI 13.99-48.83, P = 0.0004) and pronation (95% CI 5.61-26.09, P = 0.002) were superior in the internal fixation group six weeks postoperatively, and the same results were obtained three months postoperatively for grip strength (95% CI 3.21-13.47, P = 0.001) and supination (95% CI 3.61-16.01, P = 0.002). Meanwhile, the Disabilities of the Arm, Shoulder and Hand (DASH) score was superior in the internal fixation group at three months (95% CI -20.62 to -2.07, P = 0.02) and after one year (95% CI -14.37 to -2.32, P = 0.007) follow-up.Conclusions: We suggest that the final results are significant and there is some evidence supporting the use of open reduction and internal fixation. [ABSTRACT FROM AUTHOR]