The effect of career calling on medicine students' learning engagement: chain mediation roles of career decision self-efficacy and career adaptability.

The study investigates the influence of career calling on the learning engagement of medical students in higher vocational colleges, focusing on the chain mediation roles of career decision self-efficacy (CDSE) and career adaptability. A cross-sectional survey was conducted with 173 students from three vocational colleges across China, utilizing various scales to measure career calling, learning engagement, career adaptability, and CDSE, and structural equation modeling was employed to analyze the survey data. Chain mediation analysis revealed a significant positive correlation between career calling and learning engagement among medical students.

The multiple mediating effects of self-efficacy and resilience on the relationship between social support and procrastination among vocational college students: a cross-sectional study.

Background: Previous research has revealed a negative association between social support and procrastination. However, few studies have investigated the mechanism underlying this relationship among vocational college students.

Objective: Based on the social cognitive theory, this study was intended to investigate the multiple mediating effects of self-efficacy and resilience on the relationship between social support and procrastination among vocational college students.

First-principles study on the effect of torsional deformation on WSe as an anode material for calcium ion batteries.

Context: In this paper, the effects of torsional deformation on the electronic properties of intrinsic WSe system and Ca-adsorbed WSe system were systematically studied by first-principles method. The results show that Ca can be stably adsorbed on the vacancy (H site) of WSe surface in all deformation systems, and the adsorption energy of the system without deformation is the highest. Intrinsic WSe is a semiconductor with a direct band gap of 1.

Theoretical study on the effect of torsional deformation on WTe as a cathode material for calcium ion batteries.

Context: In this study, the electronic structure and diffusion barrier of the Ca-adsorbed WTe system under different torsion angles were calculated based on the first-principles method. The results show that the structure and properties of the pure WTe system and Ca-adsorbed WTe system are affected by torsional deformation. When the torsion angle is 6°, the intrinsic WTe changes from a direct band gap to an indirect band gap.

Bimetallic Au and Pd Nanoparticles Modified WO Nanosheets for Enhancing the Sensitivity and Selectivity of Formaldehyde Assessment in Aquatic Products.

Formaldehyde, a common illegal additive in aquatic products, poses a threat to people's health and lives. In this study, a novel metal oxide semiconductor gas sensor based on AuPd-modified WO nanosheets (NSs) had been developed for the highly efficient detection of formaldehyde. WO NS modified with 2.

Theoretical study on the effect of shear deformation on MoTe as cathode material for calcium ion batteries.

Context: In this study, the electronic structure and diffusion barrier of Ca adsorbed MoTe system under different degrees of shear deformation were calculated based on the first-principles method. The results show that both the pure MoTe system and Ca-adsorbed MoTe system are affected by shear deformation. The pure MoTe undergoes a transition from direct to indirect band gap under shear deformation.

Controlled synthesis of α-FeO nanocubes for gas-sensing applications: Feasibility of assessing crucian carp (Carassius auratus) freshness via trimethylamine levels.

Trimethylamine (TMA) is an organic amine with strong pungent smell which is an indicator gas for evaluating fish freshness according to the international standard. In this work, as-synthesize α-FeO solid nanocubes (NCs), α-FeO nucleoshell NCs and α-FeO hollow NCs were used as sensing material to develop an outstanding TMA gas sensor. The response of the α-FeO hollow NCs sensors towards 20 ppm TMA at 230 ℃ was 6.

Parallel Monitoring of Glucose, Free Amino Acids, and Vitamin C in Fruits Using a High-Throughput Paper-Based Sensor Modified with Poly(carboxybetaine acrylamide).

Herein, a cost-effective and portable microfluidic paper-based sensor is proposed for the simultaneous and rapid detection of glucose, free amino acids, and vitamin C in fruit. The device was constructed by embedding a poly(carboxybetaine acrylamide) (pCBAA)-modified cellulose paper chip within a hydrophobic acrylic plate. We successfully showcased the capabilities of a filter paper-based microfluidic sensor for the detection of fruit nutrients using three distinct colorimetric analyses.

Adsorption of Ca on borophene for potential anode for Ca-ion batteries.

Context: Two-dimensional borophene can be used in rechargeable batteries due to its high specific surface area. In this paper, the performance of borophene as an anode material for calcium ion batteries is predicted based on density functional theory calculations. The calculation results show that P doping enhances the calcium storage properties of borophene.

Penetration resistance of graphene oxide/epoxy resin coating-A molecular dynamics investigation.

Context: The functionalization of graphene is the best way to improve its interfacial compatibility and dispersibility in polymer matrix to obtain high-performance composites. In this study, three nanocomposite models with different salt layer thicknesses were established and simulated by molecular dynamics method to understand the effect of oxygen-containing functional groups on the impermeability of epoxy coatings. Molecular dynamics (MD) simulation results show that the nanocomposites have better impermeability than pure epoxy resin.

Regio- and diastereoselective synthesis of diverse spirocyclic indenes by cyclization with indene-dienes as two carbon building blocks.

We report a base-promoted cyclization with indene-dienes as two carbon building blocks toward diverse spirocyclic indene scaffolds including hexacyclic spiroindenes bearing benzo pyran motifs and pentacyclic spiroindenes containing oxindole units in high yields with excellent diastereoselectivities.

Prediction of concrete strength using response surface function modified depth neural network.

In order to overcome the discreteness of input data and training data in deep neural network (DNN), the multivariable response surface function was used to revise input data and training data in this paper. The loss function based on the data on the response surface was derived, DNN based on multivariable response surface function (MRSF-DNN) was established. MRSF-DNN model of recycled brick aggregate concrete compressive strength was established, in which coarse aggregate volume content, fine aggregate volume content and water cement ratio are influencing factors.

A regioselective [3 + 2] cycloaddition reaction of 2-benzylidene-1-indenones with functional olefins to access indanone-fused 2D/3D skeletons.

The regioselective [3 + 2] cycloaddition reaction of 2-benzylidene-1-indenones with functional olefins was established with DABCO as a base under mild conditions. Using this approach, a series of diversely substituted indanone-fused cyclopentane polycycles with highly crowded multiple substituents were synthesized in high yields.

The impact of career calling on higher vocational nursing students' learning engagement: The mediating roles of career adaptability and career commitment.

Learning engagement is an important predictor of academic success and a key indicator of educational quality. It has therefore attracted considerable research interest, with previous studies exploring how to enhance engagement pedagogical approaches, strategies, and content, as well as through teacher-student interaction. However, the relationship between individual learners' internal mechanisms and learning engagement has yet to be investigated in depth.

Surface modification of biodegradable magnesium alloy with poly (L-lactic acid) and sulfonated hyaluronic acid nanoparticles for cardiovascular application.

Magnesium (Mg) and its alloys have attracted extensive attention of researchers in the field of cardiovascular implants due to their good mechanical properties and biosafety. Constructing a multifunctional hybrid coating seems to be an effective strategy to address the insufficient endothelialization and poor corrosion resistance of Mg alloy vascular stents. In this study, a dense layer of magnesium fluoride (MgF) was prepared on the surface of Mg alloy aiming at better corrosion resistance; Thereafter, sulfonated hyaluronic acid (S-HA) was made into small sized nanoparticles (NP) which were deposited on the MgF surface by self-assembly method, followed with poly-L-lactic acid (PLLA) coating preparation by one-step pulling method.

A Task Complexity Analysis Method to Study the Emergency Situation under Automated Metro System.

System upgrades and team members interactions lead to changes in task structure. Therefore, in order to handle emergencies efficiently and safely, a comprehensive method of the traffic dispatching team task complexity (TDTTC) is proposed based on team cognitive work analysis (Team-CWA) and network feature analysis. The method comes from the perspective of the socio-technical system.

Quantitative fingerprint and antioxidative properties of Artemisia argyi leaves combined with chemometrics.

Quantitative fingerprint and differences of Artemisia argyi from different varieties, picking time, aging year, and origins were analyzed combing with chemometrics. The antioxidant activity was determined and antioxidant markers of Artemisia argyi were screened. Variety WA3 was significantly different from that of the other varieties.

Preparation of Fluorescent Carbon Dots Composites and Their Potential Applications in Biomedicine and Drug Delivery-A Review.

Carbon dots (CDs), a new member of carbon nanostructures, rely on surface modification and functionalization for their good fluorescence phosphorescence and excellent physical and chemical properties, including small size (<10 nm), high chemical stability, biocompatibility, non-toxicity, low cost, and easy synthesis. In the field of medical research on cancer (IARC), CDs, a new material with unique optical properties as a photosensitizer, are being applied to heating local apoptosis induction of cancer cells. In addition, imaging tools can also be combined with a drug to form the nanometer complex compound, the imaging guidance for multi-function dosage, so as to improve the efficiency of drug delivery, which also plays a big role in genetic diagnosis.

Construction of an Axially Chiral Fluorene Nitrile-Based Framework via Benzannulation of Indene Diene with Benzoylacetonitrile.

The methodology for the synthesis of fluorene-based atropisomers was developed via the strategy of aromatic ring formation. By this strategy, an efficient benzannulation of indene-based diene with benzoylacetonitrile divergently promoted by DABCO and a chiral organocatalyst was established, and various atropisomeric fluorene-based skeletons were generated in good yields, which not only provide a new strategy for the construction of atropisomeric biaryls but also offer a new member to the atropisomeric family.

Effects of different specimen pretreatment methods on the measurement of thyrotropin stimulating hormone in serum.

Objective: The pre-analysis processing method of serum samples plays a very important role in the assurance of the quality of the entire test and the accuracy of the results. This study illustrates the importance of pretreatment methods of serum samples for the test results by comparing the effects of different pretreatment methods on the measurement of thyroid stimulating hormone (TSH) concentration in serum.

Subjects And Methods: In this study, the concentrations of TSH of 37 patients' serum, which were treated in six different ways including the reverse mixing times after blood collection, clotting time and conditions, centrifugal speed and time, were detected on Automatic Chemiluminescence Immunoassay Analyzer, and a comparative analysis of the different results was performed.

Preparation and investigation of a novel iodine-based visible polyvinyl alcohol embolization material.

Polyvinyl alcohol (PVA) embolization particles, currently used in clinical practice, have good expansibility and are capable of permanent embolization. However, the lack of adhesion of embolization particles contributes to facilitated recanalization after embolization, while the lack of visualization facilitates misembolization. At present, embolization materials with good expansion, adhesion, and visualization potential are urgently required in clinical practice.

Research on Automatic Error Correction Method in English Writing Based on Deep Neural Network.

As one of the most widely used languages in the world, English plays a vital role in the communication between China and the world. However, grammar learning in English is a difficult and long process for English learners. Especially in English writing, English learners will inevitably make various grammatical writing errors.

Tissue distribution and developmental changes of PTEN in the immune organs of chicken and effect of IBDV infection on it.

Phosphatase and tensin homolog (PTEN), a tumor suppressor gene, functions in antiviral innate immunity and regulates the development and function of T cells and B cells. However, limited information about PTEN is available in poultry. In the present study, quantitative real-time polymerase chain reaction and immunohistochemistry staining were used to study the tissue distribution and developmental changes of PTEN in the main immune organs of chicken.