Search all articles

In this paper, the separation process of ethylenediamine-water azeotropic mixture is investigated with Aspen Plus software. The sim- ulation results show that the extractive disti- llation column includes 26 theoretical plates, the D/F of azeotropic distillation column is 0.18, the feed location of azeotropic...

This study aims to find out (1) how effective is the student field, (2) how is the effectiveness of the curriculum field, (3) how is the effectiveness of the field of public relations, and (5) how is the effectiveness of the field of administration and staffing in the implementation of ISO 9001: 2008...

This article describes science process skills in elementary schools, especially curriculum 2013 in Indonesia. The method of this research is a literature review, which collects and analyzes the literature in the form previous research by using descriptive analysis based on variable regression. The results...

This article reflects the main issues facing the transport system in the field of traffic safety and operation of railway transport, analyzes the criminal law aspects of the current legislation. Railways are an important part of the Russian transport network. Most of the Railways belong to the East Siberian...

This paper tried to give a new offer to conduct a process of integration of local history in the history of specialization in the 2013 curriculum. So far local content has been made as a cultural subject, which should also be occupied by sociology and civic education (PPKn). Therefore, this paper wanted...

The study examines the role of social networks in social and political processes. Today, social networks are an effective tool for the implementation of “soft power”, having a significant impact on the political agenda, international relations and social processes within states. In fact, social networks...

(1) Background: With the in-depth development of the Healthy China strategy and the awakening of residents' awareness of health care, commercial health insurance will surely play an important role in the medical reform in the future; (2) Methods: Based on the 2015 and 2017 panel data of the China...

This study aims to: (1) find out the procedure for developing a media website with the SOLE learning model to improve learning and innovation skills in the PKK subject at SMKN 7 Semarang, (2) find out whether there is a significant influence from the application of the media website with the SOLE learning...

World Class University is one of the obstacles facing higher education. Nowadays, the Ministry of Education, Culture, Research, and Technology (Kemendibudristek) has eight Key Performance Indicators (IKU) for higher education that are aligned with a variety of indicators applied by world-class ranking...

The realm of education cannot be separated from the impact of the COVID-19 pandemic that still exists today. Technological advances and the current pandemic conditions force us to adapt quickly to changing work and study environments. The form of learning involving internet is transformative. Although...

Climate change directly affects agricultural production by changing temperature and precipitation patterns, and as a key input factor in modern agriculture, the efficiency of fertiliser use is closely related to climate change. Based on panel data of 31 provinces in China from 2012 to 2022, this study...

Watercress (Nasturtium officinale R.Br) is a highlands plant that has been eaten as a vegetable by many people. Watercress contains protein, calcium, phosphorus, iron, vitamin A, vitamin E, vitamin C, flavonoids and phenols. Antioxidants are components that can delay or prevent the oxidation of lipids,...

The use of advisory videos is becoming prominent in agricultural extension, particularly for reaching small-scale farmers with timely and targeted information. This study was conducted to test the effectiveness of video-based advisories in enhancing the knowledge of tea smallholders in Sri Lanka, focusing...

The rapidly changing global environment poses significant challenges to Hungarian wineries. While the COVID-19 pandemic - undoubtedly the most disruptive event of recent years - had a considerable impact on the financial and profitability of all domestic companies, wineries must also contend with the...

Fermented goat’s milk with Bifidobacterium longum has the potential as a source of antioxidants to counteract free radicals. This study aims to determine the antioxidant activity of fermented goat’s milk using Bifidobacterium longum as a starter which is thought to have high antioxidant activity. The...

This paper takes some sports departments in higher education institutions in Hebei province as study objects, adopting the method of document literature, survey, interview and mathematical statistics to study the information infrastructure, personnel quality and the effect of the application of infomationization...

Based on graphene oxide and reduced graphene oxide, a novel gas sensor was fabricated with layer-by-layer self-assembly techniques. The negatively charged graphene oxide sheets and the positively charged reduced graphene oxide sheets were layer-by-layer assembled on positive Au electrodes. The gas sensor...

The purpose of this study was to find out: (1) the level of students' understanding of the goals and targets that must be achieved in the implementation of the internship course at the State University of Medan; (2) the level of students' understanding of the mechanism expected in the implementation...

The models of multivariate analysis of variance and models of artificial neural networks based on the D-optimal design of experiment were carried out to predict the relative contact bearing area (tfМ, %) of the parts from titanium alloy VT22 during grinding. Parameter tfМ of part surface, measured using...

"Mawar" Farmers Group are Local Intitutional in managing Rice Livestock Integration System, in Lubuk Bayas village, Sub District Perbaungan, Regency of Serdang Bedagai, Province of Sumatera Utara. The purpose of this research is describing management program Rice Livestock Integration System, and to...

The crab shell waste contains many chitins. When it processed in several chemical processes, it can produce chitosan, which has many benefits and economic value. Chitosan is a linear polysaccharide that consists of N-acetyl glucosamine and D-glucosamine monomers. This study aims to determine the optimum...

Since the establishment of the emergency period of corona virus desease (Covid-19) in Indonesia, the policy was implemented based on government circular number 4 of 2020 which contains about the change of learning system from face-to-face system to distance learning system, namely learning from home...

Indonesia’s family businesses have always had an important role to the stability and growth of the economy. Family involvement in the management of family firms is deemed as one of the key differentiators to non-family businesses. With such family involvements, family firms require trust and commitment...

This study aims to analyze how policy communication carried out by the Makassar City Government related to Makassar Mayor Regulation Number 21 of 2023 concerning the Prohibition of the Use of Plastic Bags. This research method uses a qualitative approach with a case study research design. Data sources...

This study aims to evaluate the improvement in student learning outcomes on light waves, student activity in learning, and the teacher’s ability to carry out learning using problem-based learning assisted by a virtual laboratory in class XI IPA 1 at SMA Negeri 1 Gorontalo in the United The research was...

The education sector has been undergoing a general paradigm shift with the advent of technology. Thus, different teaching strategies such as, blended, flipped, hybrid or asynchronous mode were adopted through the world and especially during COVID19. In the light of this experience and because education...

Feature selection is an important preprocessing step in machine learning. The aim of feature selection is to find an optimal subset from original features that satisfies a criterion. Rough set theory (RST) is one of the most effective ways to solve feature selection problem, but RST is inefficient in...

Intersecting line usually appears on the 3-way or 4- way interface spare parts, forming the curves of surfaces. During the course of processing by CNC machine, the CNC processing program established by using computer assistant programming will greatly improve the effectiveness of programming. However,...

This research uses qualitative descriptive method with empirical data processing. The data will be formed as written descriptive data from both data source, Brengos and Kualat Gitu Loooh drama script, that has been analyzed with narrative structure theory by Maranda, in order to state the term and the...

Aiming at the problems of high cost, limited function and weak real time interaction of common family planting system, our paper proposed an intelligent family planting system based on raspberry pi. The system is composed of controller, monitor terminal, server and client with the language of Java and...

The WeChat subscription account was registered on WeChat public platform, which was most often used for teaching than other account types. Learner could pay attention to subscription account conveniently by the "scanning and scanning" function of mobile client App, and realized information interaction...

This study investigated students’ responses and obstacles on the application of Screen-Cast O Matic (SOM) for an Online Learning Environment (OLE) because of health protocol for Covid-19 Pandemic in Kota Langsa. The study employed a descriptive qualitative approach to describe the advantages of SOM in...

This study discusses politeness strategies in directive and expressive speech, which are found in the Jane Eyre movie. The study is aimed at observing politeness strategies in conveying the intention or purpose of the speaker. The data are taken from the Jane Eyre movie. They are then collected through...

This explanatory research aims to examine the effect of government coaching on business growth in SMEs, either directly or mediated by entrepreneur’s self-efficacy. This study was conducted on 180 SME entrepreneurs who were determined by purposive sampling technique. The data collection method is a survey...

Chemistry learning at SMAN 3 Tambun Selatan is still dominated by teacher-centered information delivery, sample modeling and practice questions. As a result, students are less interested and more passive in the process of learning chemistry. Based on the results of the chemistry learning process questionnaire...

This study aims to analyze: (1) the level of problem-solving ability in terms of the Contextual Teaching and Learning model of the Al-Hikmah Private Junior High School students in Medan., (2) the answer process of the Al-Hikmah Private Junior High School students in Medan based on the Contextual Teaching...

Hybrid composite resin is a restorative material that has a filler size ranging from 0.4 to 1.0 μm which is resistant to fracture, has a colour similar to the tooth structure, and resistant to abrasion. Hybrid composite resin has the property of absorbing liquid like robusta coffee. Robusta coffee contains...

Internationalization represents the comprehensive embodiment of the strengths, innovation, cultural charm, urban vitality, and communicative abilities of a city. For modern urban competition, enhancing international image is one of the key directions for major cities. Therefore, studying the existing...

Internal residential migration within a city can not only reflect the spatio-temporal patterns of individual/family relocation behaviors, but also serve as an effective tool for interpreting the social-spatial differentiation of the city from a microscopic perspective. The new citizen group constitutes...

The problems in the Reading and Writing courses in the Mandarin language study program at the Universitas Negeri Malang are the lack of variety of methods and learning resources provided by lecturers. The opportunity for students to exchange information with other students is still lacking, so does the...

Within the framework of sustainable development, the Environmental, Social, and Governance (ESG) metrics of corporate entities have emerged as vital indicators for assessing long-term viability and serve as a crucial reference for the assessment of companies by investors and other stakeholders. It has...

Preventing corporate debt default risk is a critical element in ensuring steady economic growth. Drawing on micro-level data from Shenzhen Stock Exchange listed companies between 2012 and 2023, this paper examines the relationship between economic policy uncertainty (EPU), information disclosure, and...

Drawing on Upper Echelons Theory and Emergence Theory, this study examines how TMT heterogeneity—in age, education, and professional background—affects ESG performance in Chinese A-share manufacturing listed firms (2013–2023), and tests the mediating role of strategic choice. Results show that overall...

Berger and Stassen reviewed skein relations for link invariants coming from the simple Lie algebras g. They related the invariants with decomposition of the tensor square of the g-module V of minimal dimension into irreducible components. (If V V , one should also consider the decompositions of V V and...

A relativistic two-particle model with superposition of time-asymmetric scalar and vector interactions is proposed and its symmetries are considered. It is shown that first integrals of motion satisfy nonlinear Poisson-bracket relations which include the Poincaré algebra and one of the algebras so(1,3),...

This study aims to quantitatively analyze and compute the velocity constant of three-compartment modeling, which is based on 13N-NH3 PET images of human brain tumors. We selected the parietal lobe, cerebellum, frontal lobe, and the average of these three reference regions to analyze the transfer constant...

An in vitro study was performed with the aim to evaluate addition Lactobacillus salivarius I-11 on population bacteria of pellet duck feed. The completely randomized design was been used on this research with 3 treaments and 3 replications with 5 experimental units. The treatments were P0 (Pellet feed...

This paper discusses the Flow-Orientation Problem (FOP), which assigns orientations of all links of an undirected network to obtain a directed network for meeting some flow optimization measurements. First, we describe the background and define three related FOP issues: MDFOP, MDSFOP, and MDDFOP. We...

This study aims to analyze the effect of education, unemployment, poverty and income inequality on crime in Indonesia both partially and simultaneously. The form in this study is data of research in 31 provinces in Indonesia from 2013-2017. This research method uses panel data multiple regression techniques....

Biology learning at Senior Pekanbaru wich dominated by the teachers, less variated method and student initial ability rarely noticed by teachers lead to low of student learning competence. It proved by student learning competence average score still below minimum standard score. One of the ways to solve...