bluuebunny/crossref_metadata_2025_split huggingface dataset:
Heavy Metal Concentration in Mangrove Soils under Sonneratia caseolaris Trees: The Case of Kampung Kuantan Fireflies Park
Authors: Nyangon Laurna , Gandaseca Seca , Wahid Samsuri Abdul Wahid , Alias Mohamad Azani 
Published: September 2023

The local ecosystem potentiality is pressurized by the getting up heavy metal concentrations, especially in Kampung Kuantan Fireflies Park. This mangrove forest park, which is dominated by Sonneratia caseolaris, is a well-known place to visit for people who like nature in Kuala Selangor Peninsular Malaysia. However, the investigations on heavy metal concentration in mangrove soils under S. caseolaris are still limited. This study aims to find out the concentration of heavy metal in mangrove soil under S. caseolaris. The soil samples were taken from under S. caseolaris trees zone. Five plots were built up on mangrove soils through the Selangor River. Five sub-plots, each measuring 2 m ´ 2 m, were made for sample collection in each plot. The heavy metal contents and the geo-accumulation index (I-geo) were evaluated. As the results, the concentration of heavy metals on soils such as zinc (Zn), copper (Cu), lead (Pb), chromium (Cr), and cadmium (Cd) under the S. caseolaris trees of 240.24 mg/kg, 6.89 mg/kg, 25.46 mg/kg, 34.88 mg/kg, and 0.14 mg/kg, respectively. The I-geo ratio indicated that the soils have low heavy metal deposits, with Cd having the lowest concentration and Zn having the highest. There is a significant difference between Zn and Cr concentrations on the soils in five plots, but there are no significant differences for Cu, Pb, and Cd. In general, the heavy metal contents throughout the sampling area were considered not polluted, since the amount of trace elements in the soil was relatively low compared to the average limit.
Keywords: heavy metal, Kampung Kuantan Fireflies Park, Kuala Selangor, mangrove, Sonneratia caseolaris
RANCANG BANGUN WIRELESS SENSOR NETWORK UNTUK MENDETEKSI KEBAKARAN DI LINGKUNGAN PERUMAHAN
Authors: Nugroho Nanang Aji 
Published: September 2023

Abstrak Kebakaran di Indonesia menjadi salah satu sumber bencana yang memberikan dampak yang besar, baik dari korban jiwa hingga kerugian materi, untuk itu diperlukan suatu sistem yang dapat mendeteksi kebakaran yang dapat beroperasi di daerah pemukiman yang luas dan memberikan informasi secara arkurat. Sistem yang dibuat Wireless Sensor Network sebagai pendeteksi Kebakaran. Penelitian yang dilakukan menggunakan topologi tree pada alat pendeteksi kebakaran. Titik deteksi sistem dibuat sebanyak 4 titik sensor node dan satu titik pengumul data dan pengiriman data ke database (sink node) Hasil keluaran dari sistem dapat dilihat pada Thingspeak. Interfacing keluaran sistem pada laptop menggunakan Delphi 7. Hasil data pengukuran dapat ditampilkan pada komputer dengan menghubungkan sink node menggunakan kabel. Jarak maksimum antar node 150 meter. Keterlambatan pengiriman data antar node sensor sebesar 1 detik, dan keterlambatan pengiriman data menuju thingspeak sebesar 20-27 detik. AbstractFires in Indonesia are one of the sources of disasters that have a large impact, from casualties to material losses. Therefore, a system that can respond to fires is needed which operates in large residential areas and provides archived information. The system was created by the Wireless Sensor Network as a fire detector. The research was conducted using a tree topology in a fire detection device. The detection points are made as many as 4 sensor node points and one data collection point and data sending to the database (sink node). The output of the system can be seen on Thingspeak. Interfacing the system output on a laptop using Delphi 7. Data results can be accessed on a computer by connecting the sink node using a cable. The maximum distance between nodes is 150 meters. The delay in sending data between sensor nodes is 1 second. and the delay in sending data to the thing speak is 20 seconds.
Decreasing polymethyl methacrylate bone cement concentration extends working and setting times in vitro
Authors: Luedke Lauren K. , Mohammed Hussni O. , Ducharme Norm G. 
Published: September 2023

Abstract

OBJECTIVE
To determine setting and temperature properties of diluted polymethyl methacrylate (PMMA) bone cement in vitro to assess utility for vocal fold augmentation in horses.

SAMPLES
4 dilutions of PMMA equivalent to volumes of 15 mL, 20 mL, 25 mL, and 30 mL PMMA powder (PMMAp) in 10 mL solvent.

METHODS
For each volume PMMAp, setting times (tset), peak temperatures (Tmax), and times to peak temperature (tmax) were determined using a temperature data logger in a 4-mL volume of PMMA. Injectability was assessed in vitro by documenting the force required to inject 0.2 mL PMMA through an 18-gauge 3.5-inch spinal needle attached to a 6-mL syringe at 1-minute intervals. Working time (twork) was calculated from a linear regression of injectability.

RESULTS
Peak temperatures increased with increasing volume of PMMAp: 56 °C, 86 °C, 99 °C, and 101 °C. Times for tset, twork, and tmax were inversely proportional to PMMA concentrations, resulting in tset of 23, 21, 17, and 14 minutes; twork of 22.75, 12.25, 7, and 4 minutes; and tmax of 28, 24, 19, and 16 minutes, respectively, for 15, 20, 25, and 30 mL PMMAp. Pairwise comparisons for all analyses were significant apart from Tmax for 25 and 30 mL PMMAp (P = .96) and twork for 20 and 25 mL PMMAp (P = .06).

CLINICAL RELEVANCE
Decreasing the concentration of PMMA bone cement resulted in longer working times and setting times; however, peak temperatures did not differ between the 2 strongest concentrations. Further research is warranted to quantify diluted PMMA properties for in vivo use for vocal fold augmentation in horses.
Research on teaching reform of environmental design majors in colleges and universities based on the integration of rural revitalization into big data
Authors: Xue Xiaomin , Wei Feng , Yang Wenxin , Zhao Yijing 
Published: September 2023

Abstract
The teaching reform of environmental art design majors is integrated into the rural revitalization strategy, which can best reflect the contemporary characteristics of education and teaching reform. This paper firstly explores and analyzes the significance of education reform of environmental art design majors in colleges and universities under the strategy of rural revitalization and proposes three teaching mode reform measures in combination with the current teaching situation. Secondly, studying the scheduling system based on genetic algorithm which is widely used at present, combines the characteristics of randomness and ergodicity of a chaotic system. Finally, the population diversity, crossover operation and variation operation are improved, thus forming a scheduling algorithm based on a chaotic genetic algorithm, which enables the most reasonable allocation of the existing teaching resources of university environmental design majors. The results show that the maximum running time of the genetic algorithm is 153t/s, which is much larger than the maximum running time of the chaotic genetic algorithm 57t/s. The minimum running time of the chaotic genetic algorithm is 19t/s, which is 23.14% smaller than that of the genetic algorithm. The reform measures proposed in this paper for integrating rural revitalization into teaching provide the optimal and reasonable allocation of teaching resources for the major and employment opportunities for environmental art design students.
Numerical implementation of level set image recovery based on partial differential equation model
Authors: Liu Xiang 
Published: September 2023

Abstract
Image recovery is a class of ill-posed inverse problems, so image recovery has been a challenging and fundamental topic in image processing. In this paper, firstly, to recover blurred images with noise, an adaptive fully variable partial differential image recovery model is proposed based on the fully variable partial differential equation model and Gaussian thermal diffusion model, where the adaptiveness is achieved logarithmically by regularizing the edge detection operator. Secondly, a finite difference method, which covers the gradient and scatters operators in the partial differential equation, is applied to the problem of fixing the global range boundary conditions of the image. Finally, the gradient of the image is restored, and then the gradient domain of the image is solved to obtain the complete recovered image. The results show that in the evaluation of the image restoration effect aspect by two indexes, PSNR and SSIM, the value of the adaptive fully variable partial differential image restoration model increases from 28 to 32, and the value of SSIM increases from 0.70 to 0.88, which has good image restoration performance. The adaptive fully variable partial differential image restoration model proposed in this paper has the characteristics of good edge protection and fast convergence, which is of guiding significance for the numerical implementation of image restoration techniques.
Exploring the optimization of enterprise business management model reform in the digital ecological economy
Authors: Xu Lan , Xu Zhengdao , Cui Dawei , Lu Jianfeng 
Published: September 2023

Abstract
Because of the existing problems in the business management mode of enterprises, this paper analyzes the reasons for their existence and proposes corresponding safeguard measures to optimize the business management mode. Firstly, the evaluation model of enterprise business management capability is constructed, 18 secondary indicators are established to form the index system, then the index weights are determined using AHP, and the index evaluation set is constructed using the fuzzy comprehensive evaluation method. Then, according to the calculated weight vector, the weight vector is synthesized with the affiliation degree to obtain the fuzzy hierarchical comprehensive evaluation results. Then, based on the evaluation model, the specific problems of corporate business administration and their causes are analyzed. Finally, specific reform measures are proposed for the problems. Nowadays, there are many problems in business administration in enterprises. Regarding company decision-making, 52% said that the annual plan and planning implementation is fuzzy, and 75% said their superiors do not explain work requirements clearly. Regarding the efficiency of the company’s organizational operation, 68% said that the current company departments are at the bottom of efficiency, and 60% said their usual work efficiency is not high. Therefore, it would be extremely relevant to conduct a study on the business management model of enterprises in this context.
Design of microstructure and performance testing of high-pressure ZnO grain boundary layer
Authors: Xie Hao , Li Yasha , Zhou Jiachang 
Published: September 2023

Abstract
This paper firstly constructs the microstructure of the ZnO grain boundary layer of a high voltage system fits: microstructure characteristics of the ZnO varistor and conductive mechanism of the ZnO varistor. The ZnO structure can be seen as an irregular three-dimensional mesh composed of ZnO grain-high resistance grain boundary layer-ZnO grain. Then the electric field distribution of the ZnO grain boundary layer is calculated by Poisson’s equation, and the relationship curve of the space charge distribution inside the ZnO grain boundary with time is further simulated. Finally, the ZnO grain boundary performance is tested based on the bipolar carrier transport model with a double Schottky barrier, and the results show that the negative charge density at the grain boundary interface gradually decreases from 5×1025m−3 to 4.2452×1025m−3 and the initial charge value in the grain boundary region is 0m−3, and the negative charge at the grain boundary interface gradually decreases, and the negative charge in the grain boundary region gradually increases. In this study, the internal space charge distribution, Schottky barrier height and grain boundary leakage current are systematically investigated, which provides important theoretical support for the in-depth research on the conductivity mechanism, aging mechanism and performance improvement related to ZnO varistors.
Research on the extraction method of traditional elements in environmental art space design based on intelligent algorithm
Authors: Liu Tao , Lin Shan , Song Zhilai 
Published: September 2023

Abstract
This paper builds a spatial design model based on the reconstruction of 3D visual spatial points in an indoor environment and combines the minimum Euclidean distance to calculate the vector relationship between spatial points and realize the corresponding spatial point matching. For the exploration of traditional elements in spatial design, an extraction method based on the improved cuckoo algorithm is proposed. By adding a dynamic inertia weight adjustment method, one inertia weight value is randomly selected from the Gaussian distribution each time to balance the algorithm’s local and global search. By extracting traditional elements, calligraphy is the most frequent in the home space, with 79.4% integration. The tea set is the most frequent traditional element in the dining space, with 84.53% integration. A couplet is the most frequent traditional element in the public open space, with 71.98% integration. The extraction based on intelligent algorithms can help designers better integrate traditional elements in the design of environmental spaces.
Research on the information dissemination method of Chinese culture education based on information dissemination datasetResearch on the information dissemination method of Chinese culture education based on information dissemination dataset
Authors: Yao Jiaodi 
Published: September 2023

Abstract
This paper proposes an evolutionary model of information dissemination based on information exposure states and the underlying topology of social networks. Based on the definition of similarity, the K-means method is used to cluster the categories of information based on the activation of information at the network vertices and to model the “category-category” interactions. The evolution of information dissemination is then explored, and the EGT model is fitted to obtain a gain matrix that reveals the interaction of information, and the quantitative evolution of information is then analyzed. Finally, the information dissemination media of Chinese language and culture education are explored, and the analysis of the dissemination of Chinese language and culture education under various media, comparing the feedback effects of traditional and modern media as representatives of Chinese language and culture classes. Among the feedback results of each medium, the traditional medium’s positive and active feedback indices ranged from 5 to 17, while the modern medium ranged from 12 to 27. The traditional media’s negative and passive feedback indices ranged from 2-3, while the modern media ranged from 3-4. In the field research on the informatization of the Chinese language and culture, the total score for the informatization of the Chinese language and culture curriculum in Yucai Middle School was 0.45, and the total score for Guangming Middle School was 0.65. Modern media can facilitate the spread of the Chinese language and culture to a certain extent.
Research on the modernization of the spirit of marathon sports culture based on information dissemination mechanism
Authors: Guo Luxia 
Published: September 2023

Abstract
This paper first explores the mechanism of marathon information culture dissemination by first calculating the time required for each layer of receivers to obtain the information and further obtaining the upper bound of the time required for the information to travel throughout the dissemination. The maximum allowable number of transmissions is obtained according to the protocol, and the lower bound of the propagation time is further obtained to find the time range of information propagation. Then, the structure of marathon sports culture is studied, and the marathon sports culture is divided into surface, middle and bottom layers, and the marathon spirit is discussed in depth. Finally, the communication effect of marathon sports culture under new media is analyzed in terms of the ways of communication and the comparison of new media and traditional media content. In the comparison between new media and traditional media, for the content of sports material culture in terms of sports architecture or sports sculpture and sports logo or clothing introduction, traditional media accounted for 11.9% and 9.8%, while new media were 3% and 4% more than traditional media. Among the topics and effects, the top three average reads were the topics of event information, registration and recruitment and brand promotion, with 490,963, 91,563 and 773,243 reads, respectively. The rise of new media has promoted the spread and development of marathon sports culture.
The construction of teaching quality evaluation system of health management majors in universities based on information fusion technology
Authors: Bai Xue 
Published: September 2023

Abstract
This paper begins with the multi-level processing of instructional multi-source data using information fusion techniques, with varying degrees of abstraction of the raw data for each level of processing. The set of all possible outcomes that an instructional framework can recognize for a given instructional problem is identified through D-S evidence theory. Secondly, the m factors that affect the object of teaching evaluation are grouped into the set of factors affecting the evaluation by fuzzy evaluation method, and their factor set weight values are calculated. Finally, the teaching quality evaluation system was constructed based on the factor set weight values. The results show that the experimental obtained Kendall’s harmony coefficient reaches 0.9028, and the evaluation is reliable. The overall score rate in teaching and assessment evaluation is 0.71 to reach the expected value, which indicates that the teaching quality evaluation index system established this time has relatively good internal consistency. The evaluation index system constructed in this paper makes the classroom teaching evaluation highly operable, which can be accepted by students and teachers in the evaluation process and ensures the accuracy of the evaluation results.
Effectiveness of one-to-one feedback methods of teaching with proper metered-dose inhaler technique and correcting errors in chronic obstructive lung disease patients
Authors: Özkan Çiğdem Gamze , Kaşikçi Mağfiret 
Published: September 2023

Abstract

Objective
To determine the most common mistakes made during the use of a metered-dose inhaler (MDI), and the effect of the repeated trainings performed with demonstration method by providing one-to-one feedback on these mistakes.

Methods
This is a quasi-experimental study with a control group. A total of 100 chronic obstructive pulmonary disease (COPD) patients (50 in the control group and 50 in the experimental group) were included in the research. “Patient Information Form (PIF)” (to determine the descriptive characteristics of patients) through the face-to-face interview method, using “MDI Skill Assessment Form” (MDISAF) (it is composed of 10 skill steps about the use of MDI) through observation method was used. Patients in both the groups were asked to use MDI and their abilities regarding use of MDI were assessed. Then in the intervention group, usage of MDI was explained by a nurse via demonstration and placebo MDI. Trainings were repeated on days 1,3, and 5 as from hospitalization of the patient. In the intervention group, three methods were used in this study: “face-to-face training,” “one-to-one,” and “with feedbacks and repeated.” Routine training regarding use of MDI was given by the nurses in the clinic to patients in the control group. The use of an MDI was assessed using MDISAF before training and after the training on the first, third and fifth days of hospitalization. On the seventh day, the last measurement was performed. Percentage, chi square, and mean were used to assess the data.

Results
After repetitive training with one-to-one feedback, several differences between the groups in favor of the experimental group were found in 7 of the 10 skill levels of the MDI. There was a significant difference after “training” between the groups in the third, fourth, fifth, sixth, seventh, eighth and ninth MDI steps in posttest measurement (P < 0.05). Evaluating the skills of the groups to use MDI from pretest to posttest, it was determined that while the intervention group made less mistakes in steps in which mistakes were made mostly, the control group continued to make mistakes.

Conclusions
Inhaler technique intervention with repeated, face to face, and one-to-one feedback trainings can significantly enhance the MDI techniques in COPD patients. The patients in the intervention group made less mistakes during MDI application and their application skills improved. It may be asserted that the training provided to the intervention group was effective for using the device correctly, while the training provided in the clinic for the control group was inadequate.
Factors contributing to nurses’ resilience in caring for COVID-19 patients: an integrative review
Authors: Iryanidar Irma , Kadar Kusrini S. , Irwan Andi Masyitha 
Published: September 2023

Abstract

Objective
To summarize factors contributing to the resilience of nurses in caring for coronavirus disease 2019 (COVID-19) patients.

Methods
An integrative review was conducted according to the recommendations proposed by Whittemore and Knafl. Articles were searched through 8 electronic databases: PubMed, Scopus, Clinical Key for Nursing, ProQuest, Medline and Wiley Online Library, CINAHL, and Garuda, which are databases recommended by the Ministry of Education, Culture, Research, and Technology in Indonesia. Relevant articles published in English and Indonesia between 2019 and 2022, being quantitative or qualitative theoretical-methodological studies that analyzed or proposed factors to nurses’ resilience in caring for COVID-19 patients, were included, whereas primary studies that used review as a methodology to review an object of research were excluded.

Results
From the 17 articles that were included in this study, 3 factors were found that contributed to the resilience of nurses in caring for COVID-19 patients, namely personal factors, workplace/organizational factors, and social factors.

Conclusions
Understanding factors related to nurses’ resilience during the COVID-19 pandemic can contribute to meet nurses’ resilience both physically and psychologically. Good resilience of nurses during a pandemic is useful for improving nursing care services and patient safety, as well as for being able to avoid turnover intentions among nurses in pandemic time.