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We investigate the relationship between integrating factors and λ-symmetries for ordinary differential equations of arbitrary order. Some results on the existence of λ-symmetries are used to prove an independent existence theorem for integrating factors. A new method to calculate integrating...

White organic light-emitting device have been fabricated by using highly blue fluorescent dye 9,10-di (2-naphthyl) anthracene(ADN) and 4- (dicyanomethylene) -2-t-butyle-6-(1,1,7,7- tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB), together with well known green fluorescent dye 10- (2-benzothiazolyl) -2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H,11H(1)-benzopyroyran-o...

One of the purposes of learning with scientific approach on the curriculum of 2013 is to develop the character of the students. Learning science may mean building morality and characters of the students in order to have more knowledge about themselves and the God they believe in. The glorious Qur'an...

Schiff bases can be synthesized by reacting Vanillin and p-aminoacetophenone using a natural acid catalyst such as lime juice (Citrus aurantifolia.) with the grinding method. The purposes of this study were to determine the characterization. The yield of synthesized compounds calculated and also determined...

Due to their abundance and environmental friendliness, Paederia foetida stem fiber (PFs) are an interesting material to develop as a substitute for glass fiber. The goal of this research is to provide a thorough understanding of the physical, chemical, and functional properties of PFs. The PFs were treated...

The Minangkabau cattle market has traditions and values of local wisdom as the identity of the Minang community, including livestock traders called toke livestock. Every activity carried out has entrepreneurial values that need to be explored and integrated in social studies learning in junior high school....

Students who are visually impaired often encounter serious obstacles during examinations, mainly because most existing platforms do not offer truly accessible and independent exam-taking experiences. Typically, blind students must rely on scribes or assistants who read questions and write answers for...

Abu Robocon is an annual international robot competition that involves students from Asia-Pacific countries. For ABU robocon 2023 held in Cambodia with the theme “casting flowers over Angkor Wat” a robot that can throw a ring onto a pole. The Abu Robot Indonesia (KRAI) 2023 contest is a robot contest...

This study focuses on developing a training information system using Microsoft Access at PT XYZ to address challenges in managing employee training data. Conducted during the internship from August 7, 2023, to April 8, 2024, the research utilized a qualitative approach centered on system development....

Whether laboratory practicals (LPs) enhance theory learning and live up to expectations in science education or not is an ongoing discussion among researchers. LPs are expected to enhance students’ understanding of the theory learned in class and create an opportunity to develop employability skills....

A direct method to construct polynomial integrals for third order ordinary difference equation (O
E) w(n + 3) = F(w(n),w(n + 1),w(n + 2)) and fourth order O
E w(n+4) = F(w(n),w(n+1),w(n+2),w(n+3)) is presented. The effectiveness of the method to construct more than one polynomial integral for N-th order...

Poly-hexamethylene biguanide hydrochloride (PHMB) and 1-bromo-3- chloro-5,5-dimethylimidazolidine-2,4-dione (BCDMH) are widely used for surface disinfection. Here, we examined the bactericidal effects of the mixture of PHMB and BCDMH (named PB) combined in different ratios on S. aureus, and studied effects...

The child is a small person who is not yet empowered, but has the potential to be empowered through education by parents, community and teachers (pamong). Education provided by parents in the family can be done in the form of service, attention, affection and be role models for children. Besides, the...

Idiomatic expressions are commonly used by the native speakers to express their idea. Aside from that, this linguistic term also brings the philosophical value of the speakers. The aims of this research are to investigate the philosophical value of the word red in English idioms and to examine the use...

The purpose of this research was to evaluate the effect of skim milk on sperm motility of Brek fish, Systomus orphoides (Valenciennes, 1842) after 48 hours in 4°C. The method in this research is sperm was collected by hand stripping and was diluted by diluent, which consisted of the fish ringer, skim...

Marine fishery is a national strategic industry. China’s marine fishery started in 1985 and has become one of the major marine fishery countries in the world after more than 30 years of development. The research explore the design method of marine fishery service system under the sustainable concept,...

Standing pouch packaging is a flexible type of packaging, and this lack of rigidity affords numerous benefits. The objective of this research was to conducted the effect of red chili puree on using standing pouch packaging types to the good quality of red chili puree during storage. Research was conducted...

The study explores the burgeoning field of “AI in public health education” using data from the Scopus database spanning 2013 to 2023. Through a comprehensive bibliometric analysis, we examined 3404 documents across 1149 sources, identifying key trends, subject areas, and leading institutions. Our methods...

This study evaluated the drying efficiency of green and purple basil (Ocimum basilicum L.) varieties at three phenological stages (two weeks before flowering, one week before flowering, and at flowering) under Niğde ecological conditions, incorporating Mycorrhiza and Trichoderma treatments to assess...

The research-based teaching thinking is applied to the C++ programming course teaching, combined with the FKM teaching method, the rapid acquisition of knowledge combine with knowledge exploration and research thinking, maximize the ability to cultivate innovative ability in classroom teaching. In the...

Every function of product comes from the demand of user.Designers can use UCD philosophy get more effective information and true requirements from users. This paper first discusses the characteristics of UCD, and why it should be used in design. After comparing Android devices and desktop computers,...

This research aims to know the consumer preference of foods, based on the level of sweet potato substitution of raw material for food product, and to know the profit of this product. Product of sweet potato substitution to be analyzed this research are pizza, brownies, and bread. To collect the sample...

The green pigment chlorophyll gives a plant's leaves and stems their color. In addition to being crucial to the process of photosynthesis, chlorophyll is also rich in antioxidant, anti-inflammatory, and wound-healing compounds. Many green vegetables, especially lettuce, contain chlorophyll. Lots...

Indonesia is a country that has 40–50 types of essential oil-producing plants out of a total of 80 types of essential oils that enter the world market. There are several essential oil-producing plants that until now have not been used optimally. However, the extraction method of citronella oil in Indonesia...

Physical education is one area of learning in schools that has an important role in improving the health and quality of life of students and Physical education is The purpose of this study is to improve learning outcomes and learning motivation through the use of role-playing type cooperative learning...

The process of making Balinese arak used distillation of coconut palm through a process of heating and re-condensing the heated nira so that it becomes arak with alcohol content. Based on the results of the research the effect of fermentation time on alcohol content in coconut nira (Tuak), fermentation...

Purple soil is one of important agricultural soils in China. However, widespread soil acidification and soil fertility decline have limited the sustainable use of the purple soil in recent decades. Biochar, derived from agricultural waste such as rice husk, shows great potential for controlling soil...

There is less difference between versions of English phoneme /l/ [ ] and [l] than between Russian [l] and [l']. While adopting English words Russian native speakers can perceive English [ ] close to the Russian [l] and pronounce an English word in Russian with [l], but also they can perceive [ ] not...

A nano ZnO/polyaniline composites was obtained in situ polymerization of polyaniline nano zinc oxide surface, using ammonium persulfates as the oxidant, through a silane coupling agent KH550. And the secondary Doped Nanometer ZnO/polyaniline was obtained using HCl, phosphoric acid and sulfosalicylic...

Big data era, modern knowledge representation structures do not have appropriate structural support for parallel computing, unable to meet the time requirements of large data processing. We proposed one knowledge representation structure for cloud platform called SUMMUS Semantic Encoding Forest. Through...

As the increasingly popularization of badminton, traditional badminton teaching mode cannot keep pace with increasingly fast-paced urban life today. In this paper we introduce a newly developed badminton learning platform. It is convenient for effective learning and communication since the limitation...

This paper aims to find solutions related to law enforcement to the mining crime of class of C without permission under Law No. 4 years 2009 on Mineral Mining and Coal. The handling of unlicensed Mining Permit cases that occurred in several regions in Indonesia has been proven by several cases processed...

Image classification being widely applied to computer vision is an im-age processing method to distinguish the different category targets according to the different features reflected by the image information. BOW-SVM is a relative-ly typical image classification method with higher precision, however,...

Streptococcus mutans plays an important role in the pathogenesis of caries. This bacteria has virulence properties involve in the formation of biolm on tooth surface. Surface protein antigen peptide (SpaP) is one of the virulence properties of S. mutans that play role in adhesion of S. mutans to the...

Acute Respiratory Infection (ARI) is still a public health problem in Indonesia, specifically in the islands. Data shows that this disease is most prominent in the Sitaro Islands Regency. Risk factors known are environmental factors, individual factors, and behavioral factors. The aim of this study was...

Cold-formed steel has the advantage such as it is not flammable and eaten by termite, its installation is relatively fast and has almost no expansion and shrinkage values. However, it has disadvantages when it is exposed directly, apart from looking less attractive, it can also cause post-buckling behavior...

Recently, quite a lot of attention has been paid to the issues of increasing the infrastructural provision of the regions of the Russian Federation. This is primarily due to the fact that overcoming infrastructural constraints is one of the ways to achieve the goal of sustainable regional development....

This paper examines the impact of extreme climate risks on provincial economic performance in China using panel data for 31 provinces over the period 2004–2023. It employs a two-way fixed-effects model to estimate the relationship between the Climate Physical Risk Index (CPRI) and provincial GDP. The...

In this paper, we introduced new algorithms for solving split equality fixed point problems for the class of demicontractive mappings in Hilbert spaces and proved the convergence results of the proposed algorithms. The results presented in this paper generalized a number of well-known results announced.

Media attention serves as an indispensable external factor in modern corporate governance, significantly enhancing oversight of enterprises. This study employs benchmark regression models and mediation effect models to empirically examine the relationship between external media attention and the quality...

A plethora of worldwide study on board diversity and its relationship with firm performance had produced mixed results. Our study investigated not only from the board diversity perspective, but also examined the integrative web of firm reputation and innovation as well as the shareholder activism. We...

The 20CrMnTiH gear steel was heated at temperature range from 850°C to 1250°C and at holding time range from 0s to 480s to obtain the law of austenite grain growth by using Gleeble-3500 thermo-simulation-machine in this research. The effects of heating temperature and holding time on austenite grain...

We proposed a simple and efficient iteratively reweighted algorithm to improve the recovery performance for image reconstruction from compressive sensing(CS). The numerical experiential results demonstrate that the new proposed method outperforms in image quality and computation complexity, compared...

In order to realize remote monitoring, real-time communication technology must be applied. A wireless communication network was built with a plurality of sensors by ZigBee technology. Then data could be acquired and transmitted to the monitoring server wirelessly. The embedded microprocessor Cortex-A8...

Based on investigation data on Pb in bottom waters in 1985, we analyzed the content, pollution and horizontal distribution of Pb in bottom waters in the bay mouth of Jiaozhou Bay, eastern China. Results showed that Pb contents were 8.57-36.35 g L-1, and were confirmed with Grade III to IV in according...

This study describes the didactic literature, namely literature that educates in imaginative or fictitious forms including moral, religion, philosophy or certain themes. This study aims to analyze the contents/expressions of discipline in literary works. This study employe a descriptive qualitative method...

Coastal dynamic of North Java sea was the influence of the west and east monsoon as well as interseasonal effect during April-June and October-December. Espescialy to coastal current patern and to nitrate and phosphate variation and ultimately to phytoplankton. Study area focused at 110°52'03.72''E...

This paper explores the students’ attitudes towards climate conditions citizenship education in school, because there is still a lot of research on this subject in Indonesia. The study was a quantitative study conducted by a descriptive method. The research location is the three high schools in the city...

Coffee is a popular commodity in practically every country, and demand is growing. Coffee processing produces more than 50% by-products, the majority of which is coffee husk (48%). It includes phenolic content and caffeine, as well as antioxidants in the range of 60.25%, making it a potential functional...