bluuebunny/crossref_metadata_2025_split huggingface dataset:
An empirical study on vulnerability assessment and penetration detection for highly sensitive networks
Authors: Wang Liwei , Abbas Robert , Almansour Fahad M. , Gaba Gurjot Singh , Alroobaea Roobaea , Masud Mehedi 
Published: May 2021

Abstract
With the advancement of internet and the emergence of network globalization, security has always been a major concern. During the trial operation, the management control platform discussed in this article included more than 600 network security vulnerabilities in the industry, with dozens of incidents, which were promptly dealt with and rectified, effectively improving the level of network security management and protection in the industry. As networks are very much vulnerable to denial of service attacks, much more emphasis has been given to security. By improving their network security, network administrators have often tried their best. To attempt penetration testing, it is the best way of ensuring the system security. With the development of information technology, the security requirement of information system is increasing day by day. The use of penetration testing technology is conducive to the realization of accurate positioning, accurate detection, and active alarm of security vulnerabilities, and the optimization of monitoring and rectification of the combination of network security management control system. Taking penetration testing technology as one of the core elements of management and control, the risk index model is optimized to make network security management controllable and efficient, and effectively achieve management and control objectives.
Fractional metric dimension of metal-organic frameworks
Authors: Raza Mohsin , Javaid Muhammad , Saleem Naeem 
Published: May 2021

Abstract
Metal-organic frameworks (MOF(n)) are organic-inorganic hybrid crystalline porous materials that consist of a regular array of positively charged metal ions surrounded by organic ‘linker’ molecules. The metal ions form nodes that bind the arms of the linkers together to form a repeating, cage-like structure. Moreover, in a chemical structure or molecular graph, edges and vertices are known as bonds and atoms, respectively. Metric dimension being a subsets of atoms with minimum cardinality is used in the substrcturing of the chemical compounds in the molecular structures. Fractional metric dimension is weighted version of metric dimension that associate a numeric value to the identified subset of atoms. In this paper, we have computed the fractional metric dimension of metal organic framework (MOF(n)) for n ≡ 0(mod)2.
Hard and soft Lewis-base behavior for efficient and stable CsPbBr3 perovskite light-emitting diodes
Authors: Sun Changjiu , Wei Junli , Zhao Jian , Jiang Yuanzhi , Wang Yilong , Hu Haiqing , Wang Xin , Zhang Yongqin , Yuan Mingjian 
Published: May 2021

Abstract
All-inorganic CsPbBr3 perovskite is an attractive emission material for high-stability perovskite light-emitting diodes (PeLEDs), due to the high thermal and chemical stability. However, the external quantum efficiencies (EQEs) of CsPbBr3 based PeLEDs are still far behind their organic–inorganic congeners. Massive defect states on the surface of CsPbBr3 perovskite grains should be the main reason. Lewis base additives have been widely used to passivate surface defects. However, systematic investigations which relate to improving the passivation effect via rational molecule design are still lacking. Here, we demonstrate that the CsPbBr3 film’s optical and electrical properties can be significantly boosted by tailoring the hardness–softness of the Lewis base additives. Three carboxylate Lewis bases with different tail groups are selected to in-situ passivate CsPbBr3 perovskite films. Our research indicates that 4-(trifluoromethyl) benzoate acid anion (TBA−) with the powerful electron-withdrawing group trifluoromethyl and benzene ring possesses the softest COO− bonding head. TBA− thus acts as a soft Lewis base and possesses a robust combination with unsaturated lead atoms caused by halogen vacancies. Based on this, the all-inorganic CsPbBr3 PeLEDs with a maximum EQE up to 16.75% and a half-lifetime over 129 h at an initial brightness of 100 cd m−2 is thus delivered.
Crystal structure of catena-poly[aqua-(4-iodopyridine-2,6-dicarboxylato-κ3
N,O,O′)-(μ2-4-amino-4H-1,2,4-triazole-κ2
N:N′) copper(II)], C9H8N5O5CuI
Authors: Lv Benlian 
Published: May 2021

Abstract
C9H8N5O5CuI, orthorhombic, Pbca (no. 61), a = 11.0801(4) Å, b = 6.8489(3) Å, c = 35.3975(13) Å, Z = 8, V = 2686.20(18) Å3, R

gt
(F) = 0.0325, wR

ref
(F
2) = 0.0707, T = 292 K.
Comparative study on interface morphology and tensile property of CFRTP/Ti6Al4V laser joining joint under various groove dimensions
Authors: Xu Ying , Zhan Xiaohong , Yang Hongyan , Bu Hengchang , Wang Feiyun 
Published: May 2021

Abstract
Laser joining merges as a novel technique for the connection of carbon fiber reinforced thermoplastics composite (CFRTP) and metal. Besides, machining grooves on the metal surface presents a surface pre-treating method to enhance the strength of laser joining joint between CFRTP and metal. In this study, the laser joining of CFRTP and Ti6Al4V alloy is performed with different groove dimensions. The effect of groove dimension on interface morphology and failure load is analyzed. In addition, the formation mechanism of the interface and the fracture mode of the joint are further elucidated. The results indicate that the structurally sound connection and maximum failure load are attained with an appropriate groove dimension (groove width: 0.7 mm, groove depth: 0.25 mm, and aspect ratio: 0.36). At a narrower groove, the bubbles inside the resin caused by thermal decomposition of the matrix resin are obtained, while at a deeper groove, the gaps and holes are observed in the interface of the joint, both resulting in a lower failure load.
Production of elastomer-based highly conductive hybrid nanocomposites and treatment with sulfuric acid
Authors: Yetisgin Abuzer Alp , Sakar Hazal , Bermek Hakan , Trabzon Levent 
Published: May 2021

Abstract
As an elastomer, poly(dimethylsiloxane) (PDMS) is used in various applications such as wearable technology and sealants, and is especially preferred in microelectromechanical device production due to its advantage in fabrication of microstructures. However, some of its applications such as sensor-based or electrode-based are limited due to its insulator aspect. Various conductive nanomaterials such as carbon nanotubes (CNTs), graphene, graphite, carbon black, and silver nanoparticles were incorporated into the PDMS matrix for the production of conductive nanocomposites. In this study, we produced highly conductive PDMS nanocomposites by addition of multiwalled carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) in a three-dimensional network. Due to the synergistic effect between CNTs and GNPs inside a polymeric matrix, we expected to obtain PDMS nanocomposites more conductive than nanocomposites with only CNTs. Additionally, we investigated the effect of sulfuric acid treatment on the electrical conductivity and surface composition of prepared PDMS/MWCNT/GNP nanocomposites. Results indicated that the electrical conductivity in sulfuric acid-treated samples was significantly higher than in untreated samples. Levels of conductivity in the range of 270.7–1074.8 S/m were achieved; the higher ones were the samples treated with sulfuric acid solution.
Is there any relationship between C-reactive protein/albumin ratio and clinical severity of childhood community-acquired pneumonia
Authors: Bekis Bozkurt Hayrunnisa 
Published: May 2021

Abstract

Objectives
To investigate the relationship between the ratios of C-reactive protein (CRP)/albumin, neutrophil/lymphocyte (NLR), monocyte/lymphocyte (MLR), mean platelet volume (MPV)/platelet and erythrocyte sedimentation rate (ESR)/albumin in pediatric patients diagnosed with community-acquired pneumonia based on the severity of the disease.

Methods
This retrospective cross-sectional study included 52 patients with mild pneumonia, 30 with severe pneumonia, and 46 healthy controls. Whole blood parameters, CRP, ESR, and albumin values and ratios were recorded at the time of admission. The multivariate regression analysis, Pearson’s correlation and ROC curve analyses were performed.

Results
The CRP/albumin, ESR/albumin, NLR and CRP values were significantly higher in the severe pneumonia group compared to both the other pneumonia group and the control group (p<0.005). According to the regression and correlation analyses, these values were positively correlated (p<0.001). For CRP/Albumin ratio, ESR/albumin ratio calculated OR were 2.103 (CI: 1.675–2.639); 1.907 (CI: 1.552–2.344); respectively.

Conclusions
The data presented can be a guide in the follow-up and treatment of this patient group.
Recent Developments on Surfactants for Enhanced Oil Recovery
Authors: Han Xu , Lu Ming , Fan Yixuan , Li Yuxi , Holmberg Krister 
Published: May 2021

Abstract
This review discusses surfactants used for chemical flooding, including surfactant-polymer flooding and alkali-surfactant-polymer flooding. The review, unlike most previous reviews in the field, has a surfactant focus, not a focus on the flooding process. It deals with recent results, mainly from 2010 and onward. Older literature is referred to when needed in order to put more recent findings into a perspective.
Método simplificado para estimar las respuestas sísmicas de puentes continuos de vigas de concreto presforzado
Authors: Rondón Salvatierra Mark Michel , Fernández-Dávila Víctor I. 
Published: May 2021

Los puentes de tableros de vigas de concreto presforzado son un tipo de puente ampliamente utilizado en la ingeniería peruana, debido a las ventajas que estos puentes representan en la optimización de recursos en las etapas de diseño y construcción. La presente investigación propone expresiones simplificadas en dos direcciones de análisis para calcular el periodo fundamental de vibración del puente y las respuestas sísmicas elásticas tales como el desplazamiento lateral, la fuerza cortante y el momento flector del pilar de mayor demanda sísmica. Estas expresiones se obtienen del análisis sísmico elástico realizado a un conjunto de modelos paramétricos. Como carga sísmica, se utilizaron espectros de diseño sísmico según los mapas de isoaceleraciones especificados en el manual de puentes del Ministerio de transportes del Perú. Inicialmente, se formuló un modelo simplificado que representa los elementos estructurales del puente, luego se identificaron los parámetros que definen su comportamiento sísmico y se generó una familia de casos de modelos paramétricos. Los parámetros más representativos que fueron definidos son: la esbeltez longitudinal (H/B), la esbeltez transversal (H/D), la razón de aspecto de la planta (R/L), el número de tramos (nt), y la máxima aceleración del suelo (PGA). Para validar el modelo simplificado, se compararon las respuestas de interés obtenidos del modelo propuesto con los obtenidos de modelos estructurales refinados realizados en un programa especializado de ingeniería, que incluye los efectos de apoyos comunes y topes sísmicos. Finalmente, las expresiones del método simplificado permiten estimar las respuestas sísmicas con errores menores al 10%.
Project Delivery of Goods With Limited Resources and Minimum Time Using Fuzzy Logic Method
Authors: Et al. Paryati 
Published: May 2021

In solving the problem of fuzzy application for scheduling delivery of goods with a limited power source and minimal time, the problems that are still not considered in the RCPS problem modeling are the uncertainty characteristics of the parameters of the timing of activities in the delivery project. Even though this can be solved by using the PERT (Project Evaluation and Review Technoloque) method with a probabilistic approach, this technique still ignores the limitations of the supply of resources. Actually, a probabilistic approach can be used, if previously provided data about the experience in completing similar projects. But if the project is a new project or the techniques and methodologies used to complete a new project, such as new techniques and methodologies in software engineering, among others: object-oriented design and programming, computer-aided software design, user interface management systems, fourth generation languages, etc., then the probabilistic approach is not suitable.
In this situation, the decision maker must be able to estimate the cost and time duration, of all activities in the project based on existing experience, related to the level of knowledge they have, about new techniques and methodologies to be applied, and the level of human resource expertise. which are available. This method of estimating project costs and time, which is more precise, uses representations in the form of fuzzy numbers, namely fuzzy sets in the set of real numbers that are normal, convex, and closed intervals. The delivery time is modeled as a fuzzy number of LR types IKiri, IKanan, α, β, with three values ​​of α-cuts E = 0.3, L = 0.7, and I = 1.0. The fuzzy transformation model is based on three pairs of inferior and superior values ​​from α-cuts. The priority for scheduling delivery of goods is based on the smallest early start time EST value. Resources are solved by serial and parallel models. The smallest makespan value is used to determine the best solution. Goods delivery settlement uses fuzzy operations, namely arithmetic operations and relation operations.
Analysis of the output oftware based on testing with test scenarios (table ^ .50) for some input data shows that the parallel method is better than the serial method. This is indicated by the large difference in makespan value generated from the two methods. Based on input data from a software development project, the serial method gives makespan values ​​in the range between 675.0 and 867.0, while the parallel method gives makespan values ​​in the range between 116.0 and 259.0. The analysis of the output software in a fuzzy Gantt Chart representation shows that an activity can be scheduled with varying degrees of optimism. The degree of optimistic activity scheduling can be graded in linguistic terminology between two extreme pessimistic and optimistic values, namely very pessimistic, pessimistic, slightly pessimistic, slightly optimistic, optimistic, very optomistic.
The Role of Education in Raising the Efficiency of Human Resources use in Azerbaijan
Authors: Namazova Natavan 
Published: May 2021

Azerbaijan is currently experiencing improvements in its economic development model. Today, the vast majority of economic reforms have been completed in our country. The article considers investigated adequate mechanisms and identified directions of the use of human resources in the country in socio-economic challenges of the modern era.
There were analyzed organizational and economic mechanisms of the search process of the reforms in education, raising the level of education, implementation of measures to form a modern vocational education system, the increasing investment which focuses on human development, adequate mechanisms of human capital development at the level of modern requirements.
As one of the most noticeable areas of the modern era, it is the qualitative improvement the use of human resources in working places and working conditions. The article also includes the assessment of such factors.
Generation of Optimal Switching Angle for Nine Level Cascaded H Bridge MLI Using Most Valuable Player Algorithm
Authors: G Devadasu, Kumar C Vijaya Anand N, Hema Latha J, 
Published: May 2021

Distributed generation (DG) sources often interfaced with grid by a Cascaded H-bridge multilevel inverter with a remote D.C source. The interface inverter has to adapt voltage on the either side of the grid and DG source while it has a control of active and reactive power exchange. The inverter terminal voltage is maintained based on frequency switching technique. However, in applications like micro grids are based on quality of output voltage at the point of common coupling. The present paper discusses an optimal frequency switching methodology that generates optimal fringing angle based on an evolutionary computing technique while maintaining the voltage level at PCC with a reduced harmonic distortion. Efficacy of the proposed method is illustrated by simulating a 9-level cascaded H bridge in MATLAB environment.
Applications of Wavelet Transform and Wavelet Packet Transform to Detect the Crack in Micro Beams
Authors: Ithaya Priya.B Ravikumar.K, 
Published: May 2021

Micro beams found to be an optimistic device for several applications in various MEMS device like actuators, diaphragms, sensors and accelerometers. Its high sensitivity, accuracy and precision made this to be a basic functional unit of most MEMS devices. Micro beams shows difference in its vibrational frequency, stress and deflection over various input conditions. Occurrence of defects in the miniaturized structure can show major impact in its performance and sensitivity. Hence it is very essential to detect any defects presents in the micro device structure. In this study an eminent method of identifying the presence of cracks and its exact locations by interpreting the change in deflection and stress experienced by the micro beam using wavelet transform was illustrated. Wavelet transform and its packet decomposition is one among the efficient mathematical tool for analyzing signals in both frequency and time domain. The proposed device structure was designed and modeled using COMSOL Multiphysics simulation software. From the obtained results the location of the cracks which appears in micro cantilever structure due to various working conditions can be perfectly identified using wavelet transform analysis.
The College Students’ Satisfaction for Using Edmodo - the Learning Technology Application as E-Learning Media and Learning Effectiveness Improvement in Economic Higher Institution Mahardika Surabaya
Authors: Et al. Susilowati 
Published: May 2021

This is quantitative research. The purpose of this study was to reveal the use of Edmodo free learning applications on student satisfaction and learning effectiveness. The population of this study was students of the Mahardika Surabaya Economics College who took e-learning courses. While the sample is 160 students. Sampling was done by Non-Probability Sampling, namely by Accidental Sampling. The instrument used is in the form of a questionnaire. The data analysis used is path analysis. The results of the analysis prove that satisfaction has a significant effect on the effectiveness of learning. Student satisfaction affects the effectiveness of learning because they are satisfied with learning, service, and teaching. They can increase effectiveness, such as doing assigned assignments, presenting, studying, and discussing with colleagues or lecturers.
DIAGNÓSTICO TARDIO DE RECIDIVA EM HANSENÍASE VIRCHOWIANA E SUA ASSOCIAÇÃO Á REAÇÃO HANSÊMICA
Authors: Sousa Filho Emanuel Acaiaba Reis de , Vulcano Isabella Andrade , Torres Novaes Bastos Argemiro Manoel , Vieira Lucas Aguiar , Pullig Ingrid Andrade , Bela Cruz Faria Raissa Lelitscewa , Oliveira Fagundes Fabiana Ribeiro 
Published: May 2021

A hanseníase é uma doença infecto-contagiosa causada pelo bacilo Mycobacterium Leprae, que possui tropismo por células dermatológicas e pelo sistema nervoso periférico do corpo. Trata-se de uma patologia com evolução lenta, ou seja, os primeiros sintomas da doença demoram a aparecer e geralmente passam despercebidos no primeiro contato de uma consulta médica. O objetivo central deste artigo é trazer a importância de um diagnóstico precoce e apresentar um caso de hanseníase virchowiana com recidiva após tratamento poliquimioterápico, e sua associação à reação hansênica. A identificação tardia de recidiva da doença acarretou sequelas permanentes ao paciente, que poderiam ser evitadas caso o tratamento adequado fosse administrado de forma precoce.
Palavras-chave: Hanseníase;Hanseníase Virchowiana;Reação Hansênica
Investigation of the Impact of SARS-CoV-1 Infection on the Immunologic Status and Lung Function After 15 Years
Authors: Li Jia , Zheng Yali , Zhao Lili , Yue Zhihong , Pan Feng , Chen Yuehong , Yu Bing , Chen Yanwen , Zhao Guangyu , Zhou Yusen , Gao Zhancheng 
Published: May 2021

Abstract
Background: To investigate the long-term effects of SARS-CoV-1 on patients’ lung and immune systems 15 years post-infection. Methods: We enrolled 58 health care workers with confirmed SARS in Peking University People’s Hospital in 2003. We evaluated lung damage by mMRC score, pulmonary function tests, and chest CT. Immune function was assessed by their serum levels of globin, complete components, and peripheral T cell subsets. ELISA was used to detect SARS-CoV-specific IgG antibodies in sera. Results: After 15 years of disease onset, 19 (36.5%), 8 (34.6%), and 19 (36.5%) subjects had impaired DL(CO), RV, and FEF25-75, respectively. 17 (30.4%) subjects had an mMRC score ≥ 2. Fourteen (25.5%) cases had residual CT abnormalities. T regulatory cells were a bit higher in the SARS survivors. IgG antibodies against SARS S-RBD protein and N protein were detected in 11 (18.97%) and 12 (20.69%) subjects, respectively. Subgroup analysis revealed that small airway dysfunction and CT abnormalities were more common in the severe group than in the non-severe group (57.1% vs 22.6%, 54.5% vs 6.1%, respectively, p < 0.05). Conclusions: SARS-CoV-1 could cause permanent damage to the lung, which requires early pulmonary rehabilitation. The long-lived immune memory response against coronavirus requires further studies to assess the potential benefit.Trail registration: ClinicalTrials.gov, NCT03443102. Registered prospectively on 22/02/2018.
Impact of integrative open dialogue about complementary alternative medicine. A phase II randomized controlled trial
Authors: Stie Mette , Delmar Charlotte , Nørgaard Birgitte , Jensen Lars Henrik 
Published: May 2021

Abstract
Complementary alternative medicine (CAM) may reduce the symptom burden of side effects to antineoplastic treatment but also cause new side effects and non-adherence to conventional treatment. The aim of this randomized controlled study was to investigate the impact of integrative open dialogue about CAM (IOD-CAM) on cancer patients’ health and quality of life (QoL). Patients undergoing curative or palliative antineoplastic treatment were randomly assigned to standard care (SC) plus IOD-CAM or SC alone. A nurse specialist facilitated IOD-CAM in one or two sessions. The primary endpoint was the frequency of grade 3–4 adverse events (AE) eight weeks after enrollment. Secondary endpoints were frequency of grade 1–4 AE and patient reported QoL, psychological distress, perceived information, attitude towards and use of CAM 12 and 24 weeks after enrollment. Survival was analyzed post-hoc. Fifty-seven patients were randomized to IOD-CAM and 55 to SC. No significant difference in frequency of grade 3–4 AEs was shown between the two groups eight weeks after enrollment. The same applied to grade 1–4 AE and QoL, psychological distress, and perceived information 12 and 24 weeks after enrollment. However, a tendency towards better QoL, improved survival, and lower level of anxiety was found in the IOD-CAM group. IOD-CAM is not superior to SC in reducing frequency of AEs in patients undergoing oncology treatment. IOD-CAM does not compromise patient safety; it may reduce psychological stress, and improve QoL and overall survival. Further research on the effect of IOD-CAM on emotional well-being and overall survival is warranted.