bluuebunny/crossref_metadata_2025 huggingface dataset:
mediating role of technological innovation on the relationship between green supply chain management and social performance
Authors: Alsuraihi Alhussain , Wahab Norailis Ab. , Noorizam Khairul Affeiq Mohd. , Masruki Rosnia , Rahman Ab Z.
Published: August 2022

Malaysia is currently seeing significant environmental pollution caused by manufacturing and export activities and heavily affecting the economy, society, and environment. This issue calls for investigation on how environmental sustainability, through technological innovation, can be integrated into current production operations to create a closed-loop system, thereby enhancing social performance. Green supply chain management (GSCM) is gaining attention because of increasing environmental deterioration, such as overflowing landfills, depletion of raw materials, and pollution in general. The purpose of this study is to examine the mediating role of technological innovation on the relationship between GSCM practices and social performance in 258 manufacturing firms in Malaysia certified with ISO 14001. Survey data were analysed using partial least squares structural equation modelling (PLS-SEM). The results revealed that GSCM practices had a significant and positive effect on technological innovation and social performance. Moreover, technological innovation had a positive effect on social performance. Technological innovation also mediated between GSCM and social performance. Therefore, the present paper confirms the positive effect of GSCM on the technological innovation of manufacturing firms, which in turn improves their social performance.
Elements of internal, external factors of mental health disorders, tawakal and resilience in COVID 19 pandemic
Authors: Malek Jalaluddin Abdul , Hasan Ahmad Zaki , Rahman Ab Z. , Khairuddin Wan Haslan , Arif Ridwan , Awang Jaffary , Yunus Rozan Mohamad
Published: August 2022

God's Word s.w.t: Then set your face straight to the religion of Allah, the nature of Allah, which He created man above that nature; there is no change for the creation of the nature of God; that's a straight religion, but most people do not know it. Tawakal means surrendering decisions on all matters, efforts and endeavours to God of The Entire Universe. Tawakal is also an element that proves faithfulness and the Islamisation of a Muslim. Every human being who has been born to this earth has been created in the natural state; his heart always wants to face his God and wants to follow his religion; and the nature that God has created in every human being will never change, it will still voice the command to always return to the truth of God. Resilience is one aspect that is absolutely required by all Muslims when facing the COVID 19 Pandemic. There are several verses in the al-Quran that discuss the aspect of resilience or the capability of an individual to rise against adversities and overcome it.
Racism is a Public Health Epidemic: First, Second and Third Degree
Authors: K Finney
Published: August 2022

The purpose of this pilot study discussed in this article is to determine whether racist behaviors exist on a continuum, in other words highlighting the degrees of racist behaviors. It appears that racist behaviors range from indirect to direct acts. White people often state that they are not a racist as evident by never using the “N” word. But this theory suggest that racist behaviors is not always associated with direct behaviors such as using the “N” word but can be evident by indirect behaviors. To support this theory Black males and females were interviewed to ask they experiences interactions and encounters with White individuals or groups. In addition, the responses from the interviewees confirmed that races-based encounters did highlight those racist behaviors exist on a continuum that ranges from indirect to direct behaviors that have been labeled as degrees of racism.
The Use of Contralateral Autologous Breast Grafting Tissue In Breast Reconstruction: A New Approach
Authors: D’Aló Leonardo
Published: August 2022

Background: Breast reconstruction surgery is an exceptionally important tool for repair of defects and asymmetries caused by the various types of surgical breast cancer treatment. Reconstruction is indicated regardless of lesion location in the breast when a quadrantectomy or sector resection has been performed. Although several surgical techniques are available for reconstruction, we propose a method based on contralateral breast graft replacement to preserve shape and symmetry. Methods: This quasi-experimental study was performed with a sample of 42 women who had undergone quadrantectomy or wide resection, followed by radiation therapy, for treatment of breast cancer. The outcomes of interest were breast aesthetics and symmetry in the immediate postoperative period and after 3 months of radiation therapy. All patients were photographed preoperatively, pre-radiation therapy, and 3 months post radiation therapy. Before-and-after photographs were sent to four independent experts in the field, who, in a blinded manner, used a continuous visual analogue scale (VAS) of 0 to 10 to assess breast symmetry and aesthetic appearance. Results: The mean (SD) VAS score was 8.74 (0.75) for symmetry and 8.76 (0.80) for aesthetics (p>0.50 for both). Comparison of VAS scores assigned to preoperative and postoperative images revealed that autologous breast tissue grafting was useful. Conclusion: These findings suggest that, when combined with established techniques, autologous contralateral breast tissue grafting is a feasible alternative for breast reconstruction that provides satisfactory aesthetics and symmetry.
Neuroscience
Authors: Viza Junior Gilson de Abreu
Published: August 2022

Infectious diseases take time to show clinical signs. The most common is to present a dysfunction of the target organ, that is, if the infection is in the neural system the most common sign is headache, if the infection is pulmonary the most common symptom is cough, if the infection is in gastrointestinal tract, diarrhea. However, there are more general signs such as fever, in appetence and dynamic, which are generalized manifestations that reflect that the organ system is experiencing an infection. There are complementary tests that help in the correct diagnosis of these infections.
Nursing Practice Test Remediation: Essential for Nursing Student Success
Authors: Brown Tamara Jessica
Published: August 2022

Nursing students will take hundreds of tests throughout their academic career to evaluate their ability to practice safely and effectively as a bedside nurse. However, if such students are to take such tests effectively, they must sufficiently practice and prepare.
On the Analysis and Control of Audit Sampling Risk
Authors: Feng Runnan
Published: August 2022

Audit sampling technology is widely used in practical work due to its advantages of convenient and efficient efficiency, but it also has its disadvantages, producing audit sampling risk, which is divided into excessive trust risk and misuse risk. This paper borrows the accounts receivable data of Sichuan Star Electric Power Company, adopts the monetary unit sampling method to further understand and consider the audit sampling technology, and finally puts forward suggestions on the control means of audit sampling risk.
Research on The Development Path of Rural Manufacturing under The Rural Vitalization Strategy
Authors: Zhang Zhen
Published: August 2022

In response to the problem of unbalanced and insufficient development between urban and rural areas, China has proposed a rural vitalization strategy. The rural manufacturing industry, under a combination of economic and social conditions, has taken shape. Since rural manufacturing can absorb rural labor and improve farmers' income, it has become one of the main supports for rural industrial vitalization. In order to improve the problems of high resource consumption and pollution in rural manufacturing, this paper takes the construction of specialized villages as a development path, and studies the enhancement of industrial agglomeration in rural manufacturing. In order to promote the implementation of the strategy of rural vitalization smoothly，it is necessary to put forward various suggestions and initiatives to promote the transformation and development of rural manufacturing.
State and Criminal Law of the East Central European Dictatorships
Authors: Kozerska Ewa , Scheffler Tomasz
Published: August 2022

The chapter is devoted to discussing constitutional and criminal law as it existed in selected countries of Central and Eastern Europe between 1944 and 1989 (Czechoslovakia, the German Democratic Republic, Romania, Hungary, and Poland). As a result of the great powers’ decisions, these countries came under the direct supervision of the Soviet Union and adopted totalitarian political solutions from it. This meant rejecting the idea of the tripartite division of power and affirming the primacy of the community (propaganda-wise: the state pursuing the interests of the working class) over the individual. As a result, regardless of whether the state was formally unitary or federal, power was shaped hierarchically, with full power belonging to the legislative body and the body appointing other organs of the state. However, the text constantly draws attention to the radical discrepancy between the content of the normative acts and the systemic practice in the states mentioned. In reality, real power was in the hands of the communist party leaders controlling society through an extensive administrative apparatus linked to the communist party structure, an apparatus of violence (police, army, prosecution, courts, prisons, and concentration and labor camps), a media monopoly, and direct management of the centrally controlled economy. From a doctrinal point of view, the abovementioned states were totalitarian regardless of the degree of use of violence during the period in question. Criminal law was an important tool for communist regimes’ implementation of the power monopoly. In the Stalinist period, there was a tendency in criminal law to move away from the classical school’s achievements. This was expressed, among other means, by emphasizing the importance of the concept of social danger and the marginalization of the idea of guilt for the construction of the concept of crime. After 1956, the classical achievements of the criminal law doctrine were gradually restored in individual countries, however – especially in special sections of the criminal codes – much emphasis was placed on penalizing acts that the communist regime a priori considered to be a threat to its existence. Thus, also in the field of criminal law, a difference was evident between the guarantees formally existing in the legislation and the criminal reality of the functioning of the state.
The Theoretical Foundations of Regulation on Public Finances
Authors: Nagy Zoltán
Published: August 2022

Financial policy – which is based on macroeconomic policy – can be divided into two parts: fiscal (budgetary) policy, and monetary policy. Fiscal policy essentially covers the area of public revenues and public expenditures, i.e., it deals with public burdens through the obligation of burden-sharing, taxation, and public expenditures, from which public services are financed. The fiscal policy of the modern state is a complex and difficult system in which the individual elements are closely related to each other. Budgetary policy manifests in the regulation of public finances and public charges (taxes). Monetary policy is the other element of financial policy that primarily regulates financial processes indirectly. An important task of the monetary sphere is to ensure the money supply and smooth cash flow of the economy, i.e., to have enough money available for economic processes. Besides the central bank, financial intermediaries participate in the processes at micro level, the regulation of which is also one of the tasks of the central bank as well as the state. The two branches of monetary policy are closely related with each other. They are defined by different sub-goals, but the main goal of fiscal policy is to ensure economic and social stability and development. The regulation of public finances has two tasks: to regulate the public finance system and related issues, and to regulate the monetary system itself. To make the regulation of the financial system comprehensible, it is necessary to learn about the role and function of the state in public finances, the essential characteristics of money, and the principles of the functioning of the monetary system. This theoretical chapter deals analyses these issues.
Yapay Zekâ Teknolojisinin Perinatal Dönem Bakımına Entegrasyonu ve Uygulama Örnekleri
Authors: HÜBAN KARAKAYA Buse , AKYOL Asiye Sena , DOĞAN MERİH Yeliz
Published: August 2022

Yapay Zekâ (YZ) kavramı, insan gibi davranışlar sergileme, sayısal mantık yürütme, hareket, konuşma ve ses tanıma gibi birçok yeteneğe sahip yazılımsal ve donanımsal sistemler bütünüdür. YZ konusundaki gelişmeler, sağlık profesyonellerinin tanı, tedavi, bakım hizmetlerini daha verimli ve güvenli bir şekilde sunmalarına destek olmaktadır. Yirmi birinci yüzyılda robot teknolojisi ve yapay zekânın gelişmesi perinatal dönem uygulamalarını da etkilemektedir.

Perinatal dönemde YZ teknolojisi; gebelik, doğum ve doğum sonu dönemlerindeki sağlık ve hastalık kavramlarını kapsamaktadır. Perinatal dönemde oldukça sık kullanılan yapay zekâ teknolojisinin temel amaçları; anne ve fetüsün sağlığının geliştirilmesi, gebelik takiplerinin düzenli yapılması, prenatal tarama testlerinde maliyetin azaltılması olarak belirlenmektedir. Bu amaçları desteklemek için geliştirilen YZ teknolojileri; gebelikte riskli durumların taranması ve yönetimini, genetik tarama süreçlerini, uzaktan gebelik takibini, erken teşhis- tedavi uygulamalarını ve postpartum dönem takip süreçlerini kapsamaktadır.

Perinatal dönemde geliştirilen YZ teknolojilerinin etkin ve verimli olabilmesi için bu alandaki sağlık profesyonellerinin, teknolojilerin geliştirilmesi ve kullanımında aktif rol almaları önemlidir. Günümüzde bu alanda rol alan sağlık profesyonelleri, yapay zekâ teknolojilerinin hizmet sürecine entegrasyonunda kimi zaman zorluklarla karşı karşıya kalmaktadır.

Bu çalışmada, yapay zekâ teknolojisinin perinatal dönemde kullanımına, hizmet sürecinde yapay zekâ temelli uygulama örneklerine ve bu teknolojilerin kullanılması ile ortaya çıkabilecek etik sorunlara ilişkin güncel bilgilere yer vermek amaçlanmıştır.
INTRAVENTRICULAR HEMORRHAGE WITH ACUTE HYDROCEPHALUS FOLLOWING EVACUATION OF CHRONIC SUBDURAL HEMATOMA
Authors: IMOUMBY Fernand , IMBUNHE Napoleao , IGOMBE Suzanne , GAZZAZ Miloudi
Published: August 2022

It's not required because the paper to submit is an image
Leiomyosarcoma of Inferior Vena Cava- An unusual entity.
Authors: Buch Archana , Kambale Tushar , Paul Barnali , Viswanathan Vidya
Published: August 2022

Leiomyosarcoma of the Inferior Vena Cava is an extremely rare malignant tumor arising from the smooth muscle lining of the vessel wall. They are usually seen in sixth decade with a female preponderance. The symptoms vary greatly from case to case. Exact location and size of the tumor within the vena cava determines the symptoms. Our patient was a 35 year old female who presented with right hypochondriac and lumbar region mass since 2 months. Our study highlights the role of imaging studies and histopathological examination in making an accurate diagnosis of this rare disease.
Rare case of rhabdomyosarcoma as chronic suppurative otitis media
Authors: Kakollu Lakshmi , Shinde Vinod , Satav Anuja , Bhatnagar Aastha , Kancherla Sri
Published: August 2022

Introduction:
Rhabdomyosarcomas are soft tissue cancers derived mainly of undifferentiated mesoderm
Types of Rhabdomyosarcomas:
1. Embryonal
2. Alveolar
3. Pleomorphic
Embryonal rhabdomyosarcomas are the most common subtype(60%). Most common in children (0-4 years old) 1,2 with incidence of 4 in 1 million. Male preponderance is seen. Middle ear constitutes 10% of the head and neck rhabdomyosarcomas 3
Most commonly involved sites in head and neck region are nasal and oral cavities, second most common being the orbit and middle ear. 4 Less likely seen in terminally differentiated muscle cells.
Investigation of the validity and reliability of the Turkish Form of the Adult Executive Functions Inventory (ADEXI)
Authors: Alpay Emre , z Burcu
Published: August 2022

This study aims to examine the psychometric properties of the Turkish Version of the Adult Executive Functions Inventory (ADEXI), which was developed to evaluate the executive functions of adults. The study sample consisted of 330 university students aged between 18 and 30 (M = 20.59, SD =1.84). The participants filled out the Demographics Form, Cognitive Flexibility Inventory, Barrat Impulsivity Scale, Adult Attention Deficit Hyperactivity Disorder Self-Report Scale, and the Turkish version of ADEXI. The two-factor structure (working memory and inhibition) in the original version of the scale was confirmed by second-level confirmatory factor analysis. ADEXI's association with other measurement tools were also observed. Cronbach's alpha internal consistency coefficients for the total score of the scale and for the working memory and inhibition dimensions were calculated as .80, .83, and 73, respectively. Moreover, Gutman's two-half reliability coefficients for the total score of the scale and working memory and inhibition dimensions were calculated as .75, .81, and .69, respectively. Our results showed that the Turkish version of ADEXI is a valid and reliable measurement tool that can be used to evaluate two dimensions of executive functions, working memory and inhibition.
Border trade: Act east policy of India with special emphasis on Indo-Myanmar trade point at Moreh
Authors: Pegu Dr. Namita
Published: August 2022

The research paper has attempted to identify the reason for the under-development in NER (North-East Region) of India and how border trade point like Moreh can play an important role in the economic development of NER of India. Moreh in Manipur state is a border trade point since time immemorial. It shared border trade links with Myanmar. Myanmar along with its neighbouring sub-region like Bangladesh and Deep South China represent an under developed regional block. An Economic Planning for NER has to be addressed at the level of developing this regional block as a whole. India can use Look East, Act East policy as an opportunity for developing its NER by up gradation of infrastructure in border trade points which will increase the size of the economy and bring about prosperity and peace for the region as a whole. With this prospect in sight, research findings are evaluated and suggestions are presented.
Fifth Generation and Hybrid Warfare: Response Strategy of Pakistan
Authors: Jahangir Javeria , Bashir Naheed
Published: August 2022

The current study is designed to find out the nature and level of the fifth generation warfare in Pakistan. Pakistan is facing security challenges on account of terrorism and regional security. It is the time to understand the latest trends in the Fifth generation warfare war and implications for Pakistan. Threats to Pakistan’s stability by the hostile countries and their proxies by using 5GW and its ramification needed to be deeply analyzed. The objectives of this study are the conception of the term, comparison between different generations of warfare, mechanisms and techniques used in it and implications on the security of Pakistan and response strategies. Qualitative research design was implemented with data collection from secondary sources. The findings of the study show that the concept of 5GW is very difficult to comprehend and define, yet it has been grasped differently. The all generations of warfare are basically on two major areas i.e. targeting certain type of ideology and developing modern technology and warfare equipment’s. The study concluded that Pakistan is currently facing higher level of fifth generation warfare from India mainly in four major domains i.e. conventional war, diplomatic challenges, misinformation and economic suppression. The findings of the current study are of prime importance for framing a constructive policy in order to counter the 5GW threats. By delineating key issues and challenges, this research presents some recommendation to improve the countering strategies regarding 5GW in the context of Pakistan.
Influence Of Online Gaming User Preferences On Cognitive Behavior With Mediation Effect Of Emotions
Authors: Naqvi Sameen , Abbas Pakeeza , ShiYong Zheng
Published: August 2022

Online games are now a prosperous industry. Despite the popularity of online games, game developers confront the challenge how to boost up the player’s cognitive behavior. To tackle this significant challenge, game developers found the cause To address this challenge, this study investigates the impact of three types of variables, namely, immersion, progression, and socialization, on cognitive behavior. Drawing from the Stimulus, Organism, and response theory, the authors propose that Immersion, progression, and achievement leades the cognitive behavior by evoking the emotions of achievement. Using the survey data collected from online game players, our study reveals that immersion, progression, and socialization significantly affects the cognitive behavior through achievement. Theoretical and managerial implications are discussed.
Network Intrusion Detection with 1D Convolutional Neural Networks
Authors: Hooshmand Mohammad Kazim , Huchaiah Manjaiah Doddaghatta
Published: August 2022

Computer network assets expose to various cyber threats in today’s digital era. Network Anomaly Detection Systems (NADS) play a vital role in protecting digital assets in the purview of network security. Intrusion detection systems data are imbalanced and high dimensioned, affecting models’ performance in classifying malicious traffic. This paper uses a denoising autoencoder (DAE) for feature selection to reduce data dimension. To balance the data, the authors use a combined approach of oversampling technique, adaptive synthetic (ADASYN) and a cluster-based under-sampling method using a clustering algorithm, Kmeans. Then, a one-dimensional convolutional neural network (1D-CNN) is used to perform classification. The performance of the proposed model is evaluated on UNSW-NB15 and NSL-KDD datasets. The experimental results show that the model produces a detection rate of 98.79% and 97.23% on UNSW-NB15 for binary classification and multiclass classification, respectively. In the evaluation using NSL-KDD, the model yields a detection rate of 98.52% for binary type classification and 98.16% for multiclass type classification.
Image Encryption using MVK Algorithm, El-Gamal and Chaotic Systems
Authors: Kumari T Madhavi
Published: August 2022

Digital images are often transmitted in this modern era through various networks. Digital images are used in various fields like Medical, Military, etc. These images require high-security levels to prevent misusing and unauthorized access. There are several Image Encryption Techniques which are used to achieve image confidentiality; this paper presents a newer approach for Image Encryption which consists of 3 stages. MVK Algorithm is the first stage of encryption which is used to construct a permuted image and demolish the relationships among the adjacent pixels. El- Gamal Encryption Algorithm is the second stage of encryption which modifies permuted image; it is an alternative for RSA public key cipher. Third stage of encryption uses Lorenz system and Rossler system to achieve confusion and diffusion operations. To evaluate the effectiveness and security of the suggested strategy, a thorough analysis has been done. Visual and numerical results show that the proposed image cryptosystem can defend against a number of well-known attacks. Key Words: El-Gamal, Lorenz, Rossler.
Community Socio-Economic Change Post-Establishment of Nglinggo Tourism Village in Kulonprogo Regency
Authors: Widyaningrum Ria , Wastutiningsih Sri Peni , Ruslanjari Dina
Published: August 2022

The tourism growth in Indonesia is currently on a continuous expansion and diversification in an effort to develop the tourism sector as an economic driver, the creator of employment, improving community welfare, and environmental preservation. Development of tourism destinations carried out by the Indonesian government are distributed throughout the nation, including the Special Province of Yogyakarta or locally known as Daerah Istimewa Yogyakarta (DIY). One area that is being built for the tourism development in this province is Menoreh Hills, especially tourism villages in West Nglinggo and East Nglinggo Hamlets, Pagerharjo Village, Samigaluh District, Kulonprogo Regency. The purpose of this study is to analyse social changes in the community after the establishment of Nglinggo Tourism Village in Pagerharjo Village, Samigaluh District, Kulonprogo Regency. The method used in the research was a qualitative with descriptive approach to present a specific description of the community’s social conditions after the establishment of Nglinggo Tourism Village. The results showed that social changes are present in the community after the establishment of Nglinggo Tourism Village in the form of increased social status of the individuals in the community, increased diversity of jobs available in the community which had impacted the household income, increased patterns of social interaction, increased community and individual skills, increased social roles, and decreased emigration. Community social change occurs for the reason that the community itself are aware to develop the owned potentials in a participatory manner.
Bright Village with a Brilliant Economy through the Kampung SETRUM Innovation (Community Renewable Energy Center) as a Form of Optimizing Sustainable Renewable Energy by PT. PJB UP Paiton Probolinggo
Authors: Choirul Muna  , Kumala Alifatul , Aziz Abdul
Published: August 2022

Indonesia's energy potential is certainly quite large. Yet, this potential must be managed properly so that it does not extinct quickly. Therefore, it is important to have an innovation in order to help minimize the sustainable use of fossil energy. Currently, there are good practices that have been carried out in the use of renewable energy such as that carried out by PT. PJB UP Paiton in its social responsibilityprogram in Andungbiru village, Probolinggo district through the innovation of the kampung SETRUM. This study aims to explore the implementation and sustainability of the kampung SETRUM program implemented. With a qualitative descriptive approach through interviews and literature studies, the results show that the implementation of the SETRUM village program has good implications for thecommunity. More details can be seen through the glasses of the sustainability compass, which includes several integrated aspects such as nature, economy, social and well being. Of course, integrated innovation is one of the appropriate alternative solutions in answering the problems that occur, as well as a tangible manifestation of an energy-friendly and sustainable development program
The Effect of Written Corrective Feedback on the Acquisition of Different Types of Linguistic Features
Authors: Alkhawajah Fatimah
Published: August 2022

The current study investigated whether there exists a differential effect of direct and indirect corrective feedback (CF) on the acquisition of rule-based features (simple present) and item-based features (prepositions). Fifty students enrolled in an EFL writing class were divided into four groups. Each group received one of the following treatments: direct CF on simple present, indirect CF on simple present, direct CF on prepositions, or indirect CF on prepositions over three sessions. In this pretest/immediate posttest/delayed posttest design, students received written CF, revised writing tasks, and completed new tasks and tests. Results showed that simple present, a type of rule-based feature, responded better to indirect CF while prepositions, a type of item-based feature, responded better to direct CF. The findings suggest that teachers should consider addressing different types of linguistic features through different types of CF.

 
Computer-based collection documentation using INFOL 2
Authors: Gittins David
Published: August 2022

This article describes a pilot project into computer-based collection documentation undertaken for the Fossil Mollusc Section of the British Museum (Natural History). The information was gathered from a small collection of South African Cretaceous Molluscs, donated to the museum in 1971. I was able to use the generalised information processing package, INFOL 2, to construct a computer file of the data, and then generate a catalogue, indexes, and special reports from it. The project utilised only basic computer hardware - punch card input and line-printer output - but nevertheless, I was able to achieve a level of documentation far superior to that possible using manual techniques.
Structural studies of natural zeolites and optimizations for water hardness softening media
Authors: Gebretsadik T T , Gebremedhin T K
Published: August 2022

This study was aimed at investigating the mineralogical composition and structural features of natural zeolites using XRF, XRD, TGA, FT-IR and SEM. Natural zeolites were subjected to acid-activation and subsequently with NaCl salt to enhance surface area for water hardness softening applications. Peaks around 3560 and 1650 cm-1 belongs to Oâ€“H stretching and Oâ€“H bending vibrations which confirmed the presence of moisture within zeolite structures. This result was further supported by evolution of moisture above 108Â°C from thermogravimetric analysis. Fibrous structures which are full of rough texture were examined by SEM. The XRD pattern confirmed Stellerite and Barrerite compositions were dominant crystal structures. The mineralogical analysis determined by XRF showed SiO2, Al2O3 and CaO were dominant oxides. The specific surface area of raw and acid-activated zeolites was estimated by the Searsâ€™ method and hence, the experimental values are 10.2 m2Â·g-1 and 35.8 m2Â·g-1, respectively. Batch adsorption parameters such as contact time, pH, adsorbent dose and initial concentrations were studied and optimized. Maximum adsorption capacity (8.04 mgÂ·g-1) was recorded at optimum conditions. The experimental data was fitted-well with Freundlich isotherm model.
Tribological properties of carbon-reinforced epoxy composites - A review
Authors: Åžahin Y , Åžahin H
Published: August 2022

Tribology deals with interacting surfaces in sliding, rolling or any others types of motions, which is much importance in designing for machine components to improve their durabilityâ€™s of mechanical engineering systems. This study overviews the most recent studies on the tribological behavior of polymeric based materials containing different fillers. Some microstructural and mechanical properties of the epoxy composite are introduced. In addition, mechanisms of increasing wear resistance and reducing friction coefficient for polymeric composites are reviewed. An overview is also covered the process optimization for the dry wear results of polymeric composites using Taguchi Method (TM) and Response Surface Method (RSM). Furhermore, future use of the fiber reinforced composites in tribological applications is included in this study.
Preparation of alginate/2-hydroxyethyl methacrylate composite beads: Role of fillers and characteristics of bead formation
Authors: Urusetthanon S , Udon S , Kusuktham B
Published: August 2022

In this research, alginate composite beads were prepared. The objective was to study the effect of particle size of fillers on the viscosity of alginate solution and bead formation. The sodium alginate solution with and without 2-hydroxyethyl methacrylate was dropped into calcium chloride to form the beads. The polymerization of the 2-hydroxyethyl methacrylate in the alginate matrix was occurred by using potassium persulphate as an initiator and N,N/-methylenebisacrylamide as a crosslinking agent and N,N,N/,N/ -tetramethylethylenediamine in the calcium chloride solution as an accelerator.Â  For the preparation of the composite beads, the cotton dust, and sawdust at various ratios were mixed in the matrix. The results showed that the particle size and content of the fillers, and 2-hydroxyethyl methacrylate had an effect on the viscosity of the alginate solution. The particle size and shape of the beads depended on the particle size of fillers and viscosity of the alginate solution.Â  Also, the addition of the cotton dust, sawdust, and 2-hydroxyethyl methacrylate increased the swelling property of the beads.
Ceramic and glass-ceramic fillers in dental composites - A review
Authors: Ghosh S
Published: August 2022

Dental composite fillings are most popular fillings wherein various fillers have been suitably dispersed in a polymerizable resin. Major challenges are to make choice of suitable filler and their distribution in the resin matrix in the development of the dental fillings. Apart from traditional fillers ceramic whiskers, glass fibres, branched fibres and nanoporous powders have also been investigated as fillers in dental composites. Recently, ceramic, and glass-ceramic fillers are attracting attention of the researchers due to their suitable combination of material properties. In the current paper, the prospect of ceramic and glass-ceramics as fillers in fabricating dental composites has been reviewed.
Effect of polystyrene molecular weight and zinc oxide concentration on dewetting behavior of polymeric thin films
Authors: Sujaroon K , Whangdee P , Pangpaiboon N
Published: August 2022

The separation between ultra-thin polymer film on metal oxide substrate is called dewetting. Dewetting causes the polymer films to loss their stability and other important properties, for example, the films may short circuit or reduce their transparency. Therefore, the stability of polymer thin films on substrate need to be improved. Addition of nanoparticles is one of the most popular technique used to increase the stability of polymer thin films. The correlation between the different of molecular weight and ZnO concentration on dewetting behavior was studied in this research. The appropriate concentration of ZnO on dewetting suppression in each molecular weight was examined. Furthermore, the variation of dewetting pattern in each molecular weight system was analyzed. In this research, PS (13K and 30K) solutions mixed with ZnO suspension in toluene were prepared. The concentrations of ZnO in PS solution were 0-1.0 wt%. All composite thin films were coated by spin-casting technique and annealed at a temperature of 100Â°C in a vacuum oven to induce dewetting behavior. The topographies of annealed thin films were studied by using Optical microscope (OM) and Scanning electron microscope (SEM). The thicknesses of thin films were examined by Atomic force microscope (AFM). The surface energies of PS and PS-ZnO composite films were measured and calculated by using contact angle measurement. From the results, we found that addition of ZnO nanoparticles at concentrations 0.7 and 1.0 wt% are the optimum concentration for dewetting inhibition of PS13K and PS30K films, respectively.
XAS analysis of copper binding in soils
Authors: Siriwong W , Amonpattaratkit P , Klysubun W
Published: August 2022

Ecological distribution of copper from soil is depended on its bioavailability and mobility. Copper binding on heterogeneous soil composition is a key information for understanding the long-term fate benefiting suitable management practice for copper in the environment. X-ray absorption spectroscopy (XAS) techniques were used to provide microscopic scale information of copper-binding on different soils. Soil samples containing 14.9-56.6% clay and 0.5-3.4% organic matter were studied. Dry-powder soil samples containing approximated 0.3% copper from batch equilibrated equilibrium experiments were analyzed. Copper K-edge spectrum were collected at the Synchrotron light research institute (SLRI), Thailand in X-ray absorption near edge structure (XANES) and Extended x-ray absorption fine structure (EXAFS) spectrum region. Linear combination fit (LCF) analysis of XANES spectrum resulted the phase fraction of copper were copper acetate (55-79%) and copper sulfate (9-46%) in all soils, while, copper hydroxide (24%) was exhibited in siliceous coarse-texture soil. EXAFS analysis using copper acetated model structure found four oxygen surrounded copper atom at 1.91-1.974 Ã… in the first shell which positioned in the equatorial plane of a Jahn-Teller distorted octahedral without the existing of weak binding of two axial oxygen atom. Carbon atoms presented in the second shell at 2.73-2.91 Ã… and its coordination number related to soil organic matter content. XANES and EXAFS studied on copper binding in soils result that the predominant copper in soil is in organic matter complex via carboxyl functional group and sulfated ligand. Copper-C binding occurred in local structure which corresponded to soil organic matter content.
Effects of quenchants on microstructures and mechanical properties of steel grade AISI 5160
Authors: Apichai P
Published: August 2022

This research aims to study the effects of the quenchants in hardening process on microstructures and mechanical properties of alloy steel grade AISI 5160. The heat treatments include hardening at 900 (Q1), 870 (Q2), 840 (Q3), 810 (Q4) and 780Â°C (Q5), respectively, followed by quenching into water, oil and brine solution. Microstructures were measured by optical microscopy and scanning electron microscopy and energy dispersive X-ray spectroscopy. For each condition, hardness and tensile testing were measured. It was found that the microstructure in the as-sheet condition consisted of ferrite and pearlite. The observed microstructures after quenching process were martensite with a small amount of retained austainite. The hardening at 810Â°C for 30 min (Q4) showed carbide distribution in martensite matrix. The coarse ferrite grains were occurred after hardening at 780Â°C for 30 min (Q5). The hardness of as-sheet condition was 40 HRC. Highest hardness was obtained after hardening follow by water quenching. The ultimate tensile strength in as-sheet condition was about 510 MPa. As hardening at all conditions, the maximum ultimate tensile strength was after hardening at 810Â°C for 30 min (Q4). Heat treatment conditions increased the hardness and ultimate tensile strength compared with the as-sheet condition while %elongation gradually decreased. For heat treatment conditions, however, water quenching is more suitable.
Retention of amorphous silica in rice hulls at high temperatures
Authors: Okutani T
Published: August 2022

Rice hulls contains around 20 wt% amorphous silica (rice hull silica). Rice hull silica containing no potassium impurity crystallized from amorphous silica to cristobalite at 1300 Â°C. When a small amount of MgO or a-Fe2O3 or Al2O3 were added to the rice hull silica, the rice hull silica crystallized to cristobalite at 1500Â°C. MgO a-Fe2O3 and Al2O3 diffused to silica as Mg2+, Fe3+ and Al3+ at high temperatures. These ions broke the SiO4 tetrahedron network, so that the amorphous state of rice hull silica was maintained. As sintering occurred at 1500Â°C in rice hull silica mixed with additives such as MgO, the melting of the silica particle surface by sintering made the SiO4 tetrahedrons to move easily, so that the rearrangement of SiO4 tetrahedrons occurred and amorphous silica in the rice hull silica crystallized to cristobalite at 1500Â°C.
Solid particle erosive wear behaviour of flame sprayed EVA based polymeric coatings
Authors: Altuncu E , Ã–nen B
Published: August 2022

Flame spraying of polymers allows obtaining functional coatings for protecting against wear and corrosion. Among many engineering polymers, the Ethylene-Vinyl Acetate (EVA) copolymer attracts attention with its superior mechanical and chemical properties. EVA, which has high chemical resistance, high impact resistance and mechanical flexibility, high friction coefficient, is among the candidate coating material that can be used in aerospace, automotive, marine, chemical and manufacturing industries to protect metallic surfaces. The use of polymeric coatings in applications is often restricted when large surfaces need to be coated or if the coating needs to be applied in the openair field. Flame spraying is one of the most cost-effective methods in the production of polymeric coatings. The curing process and solvent use required in conventional polymeric coating applications are not required in thermal spray coating applications. Contact of polymeric surfaces with solid surfaces and abrasive solid particles reduces polymer life and performance. In this study, solid particle wear behaviors of EVA coatings on stainless steel produced by flame spraying is investigated and then tested in different erosive wear test conditions. The erosive wear rates were compared with stainless steel. The main wear mechanism in the polymeric coatings is associated with micro-deformation, micro-cratering and micro-crack formation.
Impact of boron carbide and graphite dual particulates addition on wear behavior of A356 alloy metal matrix composites
Authors: Jadhav Pankaj R , Nagaral Madeva , Rachoti Shivakumar , Harti Jayasheel I
Published: August 2022

The current work gives the detailed microstructural analysis and wear behaviour of aluminium alloy A356 based metal matrix composite. Here, boron carbide (B4C) and graphite (Gr) particulates were used as reinforcing phase to develop A356/ 4 wt% B4C, A356/ 4 wt% Gr composites along with A356/ 4 wt% Gr/ 12 wt% B4C hybrid composites. The composites were developed by conventional stir casting method to improve the wear properties. The developed composites were subjected to scanning electron microscope (SEM) for microstructural analysis and then to DUCOM made wear test assembly to know the dry sliding wear behaviour. The wear tests were conducted for different loading conditions of 1, 2 and 3 kg for a sliding distance of 4000 m over the speed of 100, 200 and 300 rpm, respectively. The result show decreased wear upon addition of reinforcing particulates and SEM results of developed composites revealed utmost distribution of particulates. Wear morphology of worn surfaces were also carried out using SEM.
Effect of amorphous rice husk silica addition on the structure of asphalt composite
Authors: Sembiring Simon , Riyanto Agus , Situmeang Rudy , SEMBIRING Zipora , Susanti Nita , Firdaus Iqbal
Published: August 2022

In this study, modified asphalt composites were produced by adding silica extracted from rice husk. The mass ratios of asphalt to silica are 1:0, 1:1.6, 1:1.8, and 1:2 and calcined at the temperature of 150°C for 6 h. The structural and microstructural characteristics of asphalt composites were examined by x-ray diffraction (XRD), Scanning Electron Microscopy/Energy Dispersive x-ray (SEM-EDX) Spectroscopy and Differential Thermal Analysis (DTA-TGA), respectively. The XRD study revealed that the major phases were carbon and amorphous silica. The surface morphology of asphalt without silica addition presents a cluster of larger size than the cluster of asphalt with an addition of silica. The addition of silica significantly increased the thermal stability of the asphalt due to the formation of a physically cross-linked silica network structure. DTA/TGA analyses produced that temperature decomposition increased with the increasing silica addition from 230℃ to 315°C. Based on these characteristics, the samples are considered for the roof material, suggesting their potential use in substitute lightweight steel roof devices.
Rice Germplasm: Source of Iron and Zinc for Nutritional Security
Authors: Roy Subhas Chandra
Published: August 2022

Rice is the most important food crop, more than half (½) of the world’s population depends on it for their sustainable livelihood. Population growth is increasing day by day and it will reach more than > 9 billion by 2050, and to feed the overpopulation we need to produce nearly double amount of food grains to fulfil the demand. It was projected that Global rice yields and consumption rate will rise by 12% and 13% respectively by the year 2027 (FAO 2018). The Green Revolution has played a prime role in the 1960s -1970s to increase agricultural productivity worldwide to make many countries in food self-sufficiency leading to food secured world. The present situation is posing serious challenge for global food security in coming decades due to climate change, limited availability of arable land and water, more over other natural resources are continued to exhaustion. Rice is consumed as sole source of energy mainly in South and Southeast Asia, Africa, and Latin America which causes micronutrients deficiency leading to chronic malnutrition. Malnutrition due to inadequate intake of micronutrients mostly iron and zinc can lead to ‘Hidden Hunger’, which is responsible for many diseases. Important micronutrients Fe and Zn deficiencies in rice promoting the hidden hunger and causes anemia, stunted growth, poor cognitive development for iron deficiency and for zinc deficiency that causes reduced immunity, diarrhea, lesions on skin, mental lethargy. Approximately 2 billion people are suffering from malnutrition deficiencies for iron and zinc. Micronutrient elements Fe and Zn are available in various local rice varieties which ranged from 6.3-24.4 mg/kg Fe and 13.53- 58.4 mg/kg Zn. Biofortification of rice can assist to alleviate malnutrition associated diseases among the poor people those who are depended on rice as staple food for 40-70% daily caloric intake. Nutritional studies recommended that 24–28 mg/ kg Zn and 13 mg/ kg Fe concentration in polished grain is vital to attain the 30% of human estimated average requirement. Biofortification of cereal foods through conventional breeding can be a good opportunity to improve micronutrient deficiency in the diets. Wild rice accessions (Oryza rufipogon, O.nivara, O. latifolia and O. officinalis) may be used to improve the mineral nutrition in rice grain through breeding and conserve as important resources.
DAMPAK PESEBARAN VIRUS CORONA (COVID-19) TERHADAP PERJALANAN WISATA RELIGI (UMROH) DI WILAYAH JAKARTA
Authors: Darmawan Rahmat , Abidin Jenal , Agustin Revi
Published: August 2022

This study aims to analyze the impact that occurs due to the closing of the permit for religious tourism visits for Umrah, both direct and indirect impacts. In addition, this study will also analyze the impact that occurs on tourists who fail to depart on Umrah travel trips and also the impact on Travel Bureaus specifically for Umrah religious travel as travel organizers.This study uses qualitative research methods with reference to the concept of religious tourism, and the economic impact on the religious travel business of Umrah. The population of this study is in the form of a social situation, namely the stakeholders associated with tourism travel, namely the DKI Jakarta Tourism Office, the Jakarta religious office, the Umrah religious tourism industry players and the people who will be the participants of the Umrah tour. The research instruments in this are observation, interviews and literature study. Data analysis used the Miles and Huberman model with data triangulation.The results of the study show that there are four impacts of closing Umrah religious tourism visits by the Government of Saudi Arabia, namely the direct impact, indirect impact, follow-up impact and psychological impact.