bluuebunny/crossref_metadata_2025 huggingface dataset:
Ring strain release and pseudo anti-aromaticities control photochemical reactivities in photoclick reactions of solvated cyclopropenones
Authors: Adrion Daniel , Karunaratne Waruni , Lopez Steven
Published: December 2022

Gas-evolving photochemical reactions use mild conditions to access strained organic compounds irreversibly. Cyclopropenones are a class of pseudo-aromatic light-responsive molecules used in bioorthogonal photoclick reactions; their excited-state decarbonylation reaction mechanisms are misunderstood due to their ultrafast (<100 femtosecond) lifetimes. We have combined state-of-the-art multiconfigurational quantum mechanical (QM) calculations and non-adiabatic molecular dynamics (NAMD) simulations to uncover the excited-state mechanism of cyclopropene and a photoprotected cyclooctyne-(COT)-precursor in gaseous and explicit aqueous environments. We explore the role of H-bonding with unprecedented QM/QM NAMD simulations (CAS-chromophore and HF-solvent) for the aqueous decarbonylation reaction. The cyclopropenones pass through asynchronous conical intersections but have dynamically concerted photodecarbonylation mechanisms. The cyclopropenones break planarity to relieve the S1 pseudo anti-aromaticity upon photoexcitation. The substantial structural distortions relieve pseudo anti-aromaticity towards non-aromatic structures and release inherent ring strain. After crossing to S0-state, the cyclopropenones maximize pseudo-aromaticities by reverting to the reactant or the second σCC bond breaks to form CO and an alkyne. The COT-precursor has a higher quantum yield of (53%) than cyclopropenone (28%) because these trajectories prefer to directly break a σCC bond to avoid the strained trans-cyclooctene S1-minimum geometry. Our QM/QM simulations show an increased quantum yield (58%) for the systems studied here. Favorable ground-state hydrogen-bonding interactions become repulsive in the excited state due to developing positive charges on oxygen in the S1-state, resulting from the nO → 𝜋* excitation.
Definition and exploration of realistic chemical spaces using the connectivity and cyclic features of ChEMBL and ZINC.
Authors: Cauchy Thomas , Leguy Jules , Da Mota Benoit
Published: December 2022

Discovering an efficient new molecule can have a huge impact on a chemical research field. For several problems, the current knowledge is too scarce to train robust deep learning models. An exploratory approach can be a solution. However, when we consider several types of atoms a phenomenal amount of combinations are possible even for small molecules. Many of these combinations contain very exotic associations. In addition to connectivity features filtering (based on ECFP4), we introduce a new filter based on the cyclic features. In this article, we show that whitelists including all connectivity and cyclic features of either ChEMBL or ChEMBL and ZINC allow for the definition of large realistic chemical spaces. An enumeration dataset, Evo10 has been built with more than 600 000 molecules with the set C, N, O, F and S having 10 or fewer heavy atoms. Starting only from a methane molecule, we were able to navigate through the chemical space of those realistic molecules and rediscover all molecules passing these same filters from the reference datasets which are here ChEMBL, ZINC, QM9, PC9, GDB11 and GDBChEMBL. The distributions of SAscores, CLscores and RAscores for all the generated molecules confirms that the vast majority of them seem realistic. It is especially the visualisation of the proposed top solutions after filtering for the optimisation of the QED or HOMO and LUMO energies, that convinces us of the relevance of this approach for the systematic de novo generation of realistic solutions.
Metric geometry tools for automatic structure phase map generation
Authors: Vaddi Kiran , Li Karen , Pozzo Lilo D
Published: December 2022

Extracting a phase map that provides a hierarchical summary of high-throughput experiments is a long-standing bottleneck for the modern goal of achieving automation and acceleration in material discovery. A phase map that underpins the inherent properties of materials is typically denoted using a composition-structure map but can be extended to other relevant parameters such as synthesis. This paper describes a computational statistical tool to efficiently obtain a phase map from multi-scale experimental measurement profiles on-the-fly during high-throughput measurements. We motivate the construction of a phase map as the problem of learning the underlying metric geometry defined by a set of templates in infinite-dimensional function spaces. We provide a statistical analysis tool to obtain a phase map as an asymptotic of the diffusion of resulting distance functions on the composition. Using examples from small-angle X-ray scattering experiments of polymer blend systems, we show that learned metric geometry can efficiently differentiate ordered phase regions with shifted, missing, and broad Bragg peaks along with features related to non-Bragg behavior in scattering data characteristic of soft-matter systems. The metric geometry allows us to define a shape distance between scattering profiles invariant to phase-independent transformations thus valuable for obtaining a phase map. We also apply the methodology to benchmark experimental diffraction data to showcase the qualitative improvement over existing methods and broad applicability.
The Curious Case of the Crystalline Tri-Thorium Cluster: Cyclic Delocalization Without Aromatic Stabilization
Authors: Szczepanik Dariusz
Published: December 2022

The discovery of the delocalized tri-thorium σ-bonding in the crystalline actinide cluster isolated by Boronski et al. has been hailed for extending the concept of aromaticity to the record seventh row of the periodic table, which sparked a heated debate on the magnitude of aromatic stabilization and its actual impact on the thermodynamic stability of the cluster. Most recently, Lin and Mo demonstrated that the experimentally observed delocalization of charge in the Th3 ring may be associated with considerable aromatic stabilization effect, comparable with archetypical heteroaromatics like thiophene and pyrrole. In the following, we first challenge this conclusion by showing that the highly ionized model clusters studied by Lin and Mo dramatically exaggerate σ-bonding and charge delocalization, and thus they cannot be used to justify σ-aromaticity in the real actinide cluster. Next, we demonstrate that the Th3 bonding is actually too weak to fulfill the very fundamental requirement (by IUPAC) of being distinctly stabilized by cyclic delocalization of electrons compared to the linear isomer, and therefore it should be classified as non-aromatic once and for all.
Non aqueous Li-mediated nitrogen reduction: Taking control of potentials
Authors: Tort Romain , Westhead Olivia , Spry Matthew , Davies Bethan J. V. , Ryan Mary P. , Titirici Maria-Magdalena , Stephens Ifan E. L.
Published: December 2022

The performance of the Li-mediated ammonia synthesis has progressed dramatically since its recent reintroduction. However, fundamental understanding of this reaction is slower paced, due to the many uncontrolled variables influencing it. To address this, we developed a true non-aqueous LiFePO4 reference electrode, providing both a redox anchor from which to measure potentials against, and estimates of energy efficiency loss sources. We demonstrate its stable electrochemical potential in operation using different N2- and H2-saturated electrolytes. Using this reference, we uncover the relation between partial current density and potentials. Whilst the counter electrode potential increases linearly with current, the working electrode remains stable at lithium plating, suggesting it to be the only electrochemical step involved in this process. We also use the LiFePO4/Li+ equilibrium as a tool to probe Li-ion activity changes in situ. We hope to drive the field towards more defined systems to allow a holistic understanding of this reaction.
PROGRAM PEMBERDAYAAN PEREMPUAN KEPALA KELUARGA GUNA PENINGKATAN PENDAPATAN DI DESA SERNING KECAMATANBARENG KABUPATEN JOMBANG
Authors: Susilo Dwi Ermayanti , Rahmadhan Ferdi Rahmad
Published: December 2022

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The Relationship Between Public Expenditures and Tax Revenues: An Empirical Study for Turkey
Authors: ÇADIRCI Çiğdem , KAYA Levent
Published: December 2022

Currently, budget deficits have become an important problem in developed countries as well as in developing countries. It is seen that there are discussions on the necessity of increasing public revenues or reducing public expenditures in order to reduce budget deficits in countries. Determining the relationship between public expenditures and tax revenues by causality analysis method and determining the relationship between them has an important role in determining the fiscal policies to be implemented in reducing the budget deficits. In order to determine this relationship, monthly data of central government public expenditures and central government tax revenues covering the years 2006-2021 were used. According to the Tsong (2016) fourier cointegration test, a long-term relationship was found between public expenditures and tax revenues. The causality relationship between public expenditures and tax revenues was examined with the Toda – Yamamoto test and a one-way causality relationship was found from tax revenues to public expenditures. The empirical results obtained from the study show that the tax-expenditure hypothesis is valid between public expenditures and tax revenues in Turkey. The tax-expenditure hypothesis is based on reducing tax revenues to reduce budget deficits.
Напрями застосування проєктного аналізу в управлінській діяльності
Authors: Біляк Тетяна Олександрівна
Published: December 2022

У сучасних умовах проєктний аналіз вважається одним із головних видів робіт та методів дослідження, який здійснює ініціатор проєкту на передінвестиційній стадії проєкту з метою визначення соціально-економічної ефективності проєкту, комплексу ризиків і доцільності реалізації проєкту та організації його фінансування. У статті уточнено зміст проєктного аналізу як важливого інструменту моніторингу реалізованого інвестиційного проєкту, комплексної оцінки його реальної ефективності, а тому проєктний аналіз варто використовувати на всіх етапах життєвого циклу проєкту. Узагальнено, що сучасний проєктний аналіз використовує різні види аналізу проєктів, зокрема, експрес-аналіз, стратегічний, технічний, комерційний, інституційний, ризиків проєкту, екологічний, фінансово-економічний. Обґрунтовано, що раціональна реалізація інвестиційної діяльності підприємства містить кілька етапів проєктних розрахунків з різним ступенем деталізації, з таких причин: скорочується час, який експерти витрачають на надлишкові обчислення; забезпечується краща наочність на ранніх стадіях проєктної діяльності; стає можливим враховувати інтереси різних сторін, які беруть участь у реалізації проєкту, і швидко змінювати їх кількість та склад; вже на початковому етапі є загальна оцінка необхідної суми інвестицій. Це дозволяє скорочувати проєкти зі свідомо завищеним або заниженим інвестиційним бюджетом; залежно від специфіки проєкту, визначеної на ранніх етапах, можна варіювати методи проведення розрахунків. Встановлено, що використання проєктного аналізу в управлінській діяльності дозволяє створити єдину систему інвестиційного планування, що дає можливість відслідковувати хід проєктів у режимі реального часу. Обґрунтовано найбільш актуальні напрями застосування проєктного аналізу в управлінській діяльності суб’єктів господарювання.
Оцінка фінансового потенціалу підприємств IT-галузі в Україні
Authors: Виговська Наталія Георгіївна , Полчанов Андрій Юрійович , Литвинчук Ірина Вікторівна , Виговська Олена Анатоліївна , Полчанов Олексій Юрійович
Published: December 2022

У статті досліджено питання оцінки фінансового потенціалу підприємств ІТ-галузі України, що розглядається як один із драйверів розвитку економіки в умовах воєнного конфлікту та після нього. Методологічною основою є загальні та спеціальні методи дослідження, у тому числі методи теоретичного узагальнення, аналізу, синтезу, порівняння та інші. Інформаційною базою є дані Державної служби статистики України про показники діяльності підприємств, основний вид яких належить до Розділу 62 Класифікатора видів економічної діяльності «Комп’ютерне програмування, консультування та пов’язана з ними діяльність», протягом 2013–2020 рр. Виявлено, що середній річний темп приросту виручки в ІТ-галузі перевищує загальні для економіки України значення у аналізованому періоді. На основі статистичних даних про обсяги реалізованих послуг підприємств за 2010–2020 рр. було побудовано прогноз розвитку галузі до 2023 р., що містить оптимістичний (обсяг реалізації за підсумками 2023 р. – 148,09 млрд грн), базовий (129,4 млрд грн) та песимістичний (110,75 млрд грн) сценарії. Використання статистичного інструментарію дало можливість виявити, що порівняно з національною економікою в цілому ІТ-галузь забезпечує вищу віддачу від інвестицій у власний капітал (оцінену через рентабельність власного капіталу підприємств) за нижчого рівня ризику (оцінений через стандартне відхилення рентабельності власного капіталу підприємств). Не залишилося поза увагою дослідження питання визначення детермінант формування прибутковості за допомогою трифакторної моделі Дюпона, що показала визначальний вплив на рентабельність власного капіталу показника рентабельності продажів. При цьому підприємства не повною мірою використовують позикові джерела фінансування для підвищення рентабельності власного капіталу.
Military actions as determinants of influence on accounting and analytical support for the management of industrial enterprises in Ukraine
Authors: Horai O.S. , Svirko S.V.
Published: December 2022

In this study, a set of the consequences of conducting military combat operations in the active phase on the territory of Ukraine on the economic sphere of the latter's life is determined. Based on the identification of user requests regarding the consequences of emergency situations through the justification of their impact on analytical indicators, the current state of accounting was evaluated as an information basis for analysis and, collectively, as a system for generating information for making managerial decisions by users of various fields. As a result, it is established that the current organizational and methodological provisions of accounting do not meet such requests and their inability to generate information for managing economic activities in the context of military operations. Promising areas of development of accounting in the context of conducting military operations are identified, such as: recognition of the consequences of military operations in accounting, development of a system for documenting such consequences, assessment of such consequences, a mechanism for restoring accounting, legal, personnel and technological documentation lost as a result of military operations, accounting of assets and liabilities in terms of reflecting the consequences of military operations. Regarding the analytical component of enterprise management in the conditions of military operations, promising areas are: analysis of the cost of the enterprise (reduction), analysis of the material and non-material damage caused, analysis of the competitive stability of enterprises (reduction), analysis of the economic security of the enterprise and analysis of the probability of its bankruptcy.
Development of the system of internal reporting regarding the evacuation process as an information basis for analytical assessment
Authors: Grycyshen D.O. , Kuchuk A.O.
Published: December 2022

Today, the issue related to the process of evacuation of an industrial enterprise and resumption of work in safe territories is extremely relevant. Its relevance is due to the complexity of the process, which requires operational management decisions on the one hand and the evaluation of the effectiveness of this process in order to determine the financial status and continuity of the enterprise in a strategic dimension on the other hand. The article proves that the formation of a high-quality information product to ensure decision-making by stakeholders is an important component of the aforementioned. Implementation of the above is possible only through the formation of an internal reporting system. A set of accounting information about the state and changes in the company’s assets and liabilities allows taking reasonable management decisions. In the conditions of the market economy of Ukraine, the work of accounting personnel of enterprises is filled with new content. This determines the need to expand the internal reporting system of the industrial enterprise in the context of reflecting the consequences of hostilities and the occupation of state territories and the processes of evacuation and the start-up of the enterprise’s work in safe territories. Accordingly, research on the development of internal reporting on evacuation processes of industrial enterprises is being updated.
Testing of Semi–Strong Form of Efficiency: an Empirical Study on Stock Market Reaction Around Dividend Announcement
Authors: Krishnan Prema , Periasamy M. N.
Published: December 2022

Purpose: The purpose of this study is to examine the efficiency of the Indian stock market of the Nifty IT index over the dividend announcement for five years from 2016 to 2020.
 
Theoretical framework: A reward procured by the shareholders on their equities is, of course, the dividend. A leading area of concern is the dividend announcement. According to the theory of efficient markets, stock prices accurately reflect all available information. This demonstrates that the prices are correct and fair. The market should therefore respond immediately to an event in this instance the dividend announcement. Therefore, depending on publicly available information will not provide investors with the possibility to consistently generate extraordinary returns.
 
Design/ methodology/ approach: The study attempts to validate the event study approach while investigating the semi-strong form of efficiency. Daily share prices of five companies out of ten of the Nifty IT index were observed to test the Efficient Market Hypothesis. 31 days event window has been employed to calculate the abnormal returns of the selected sample around dividend issue announcements also t-test was applied to assess the level of significance.
 
Findings: The study found that the stock market was efficient in its semi strong form and the investors could not make excess returns over the dividend announcement of the Nifty IT index.
 
Research, Practical & social implications: This study eliminates the possibility for investors to beat the average market returns. It is significant since it affects stock market investment choices.
 
Originality/ Values: The majority of studies are only able to analyse the overall average abnormal return and cumulative average abnormal return of chosen companies; it is difficult to locate studies that focus on the abnormal return for each individual company. The t test for each company-wise abnormal returns, overall average abnormal returns, and cumulative average abnormal returns were acquired and tested at the 5% level of significance in order to determine the significance.
Factors and Economic Growth of Peruvian Mypes
Authors: Arauco Elías Wilfredo Quispe , Romero-Carazas Rafael , Romero Ivan Apaza , Rodríguez Margarita Jesús Ruiz , Bernedo-Moreira David Hugo
Published: December 2022

Purpose: Describe the factors that promoted the economic growth of MSEs in the city of Iquitos in the year 2021.

Theoretical framework: The world we know has many shortcomings, schools, hospitals, infrastructure necessary to provide essential services to the entire population, and that economic activities, production, transportation, etc., allow and contribute to the presence of upstream supply of goods and services that people require for their livelihood (Aguilar Zuluaga, 2016).

Methodology: For the development of this study, the qualitative approach of phenomenological - hermeneutic design was used, the informants were entrepreneurs, microentrepreneurs, officials of the Chamber of Commerce and officials of the Municipal Economic Development Management.

Findings: The study provides information about the intrinsic reality that Peruvian MSEs are going through, that which economic indicators and quantitative studies do not provide.

Contributions: The present study provides an analysis of the reality about economic growth, making a study of the phenomenology that this represents, with the respective hermeneutic analysis that is required, which could serve as a basis for the promotion and design of public policies for the economic development of the sector.

Originality/value: This study is innovative due to the absence of research that addresses the social phenomenon of economic growth and its factors from the perspective of its protagonists, the entrepreneurs, which will contribute to the analysis of decisions for the development of these economic sectors.
Drying of mushroom slices in a new type solar drying system and under open sun: Experimental and mathematical investigation
Authors: ÇERÇİ Kamil Neyfel , SAYDAM Doğan Burak , HÜRDOĞAN Ertaç
Published: December 2022

Drying is among the beneficial food preservation strategies and this method ensures food products last before they reach consumers. The most used drying method is direct drying under the sun. However, in this method, the negative effects of the external environment damage food products. Recently, solar drying systems have been the main subject of much research as they have been protecting food from the negative effects of the external environment. In this study, a solar drying system (SD), which have a drying chamber with different structure, was used for drying mushroom. At the same time, mushroom slices were dried under open sun (OSD) for observing the performance of drying system. Drying rate (DR) and moisture ratio (MR) values were determined from the experiments. In addition, the MR values obtained from the experiments were estimated by 6 different mathematical models and 6 different machine learning algorithms. According to the results of the experiments, the drying time of the mushroom slices using SD was approximately 12.4 hours less than the drying time under open sun. The best convergence in the results gathered from the mathematical models is Sripinyowanich and Noomhorn and Hii et al. models for SD and OSD, respectively. The best estimation for MR values was realized by the Multilayer Perception algorithm for both drying methods.
The Investment Interest as A Mediator Variables Towards Investment Decisions
Authors: Yutama Machella Shevany , Maghfiroh Rahma Ulfa , Prakoso Agung Suryo
Published: December 2022

The purpose of this study is to test Financial Attitude and Financial Literacy towards Investment Interests and Investment Decisions and to test the role of Investment Interest mediation in improving Investment Decisions. This study uses perception and causality for students. This research is a quantitative study with a survey method of positive paradigm approach. In addition, structural equation modelling is used to conduct research testing. The population of this study is students of state universities in Malang, Indonesia. This study used a Likert scale questionnaire that was distributed to 160 respondents. Random sampling techniques are used to determine respondents. The study found that Investment Interest is more primarily shaped by financial literacy than Financial Attitude to improve investment decisions
Need Analysis For Designing Learning Materials of Students at Economic And Business Department of Universitas Muhammadiyah Makassar
Authors: Sahmar Wahyuni , Ampa Andi Tenri , Amin Bahrun
Published: December 2022

The aims of this research were: (1) to find out the content of English Materials need by students of Economic Department Universitas Muhammadiyah Makassar (2) to investigate the reason why students need English materials. This study used descriptive quantitative method. Total Respondents of this research were 37 students of the second semester of Islamic Economic Study Program at Universitas Muhammadiyah Makassar.. The results of this study showed that: first, in the listening Materials, the highest content that students needs is about listen the customer who wants to create an account at Shariah Bank, in the speaking skill, the highest content that students needs is about how to explain to the customer the information in creating an account at Shariah Bank, in the reading materials, the highest content that students’ need is about reading brochure from Islamic bank. And in the writing skill, the highest content that students’ need is materials in the form of reply to letters, emails, and fax from other Islamic Banks, second, There are some reasons why the English materials are needed by Islamic Economic student. first, English materials is important for their future job or career. Second reason is English is international language. The third reason is to be able to communicate orally and written, and the other students said to be able to communicate with tourism.
X-Bant Uydu Uygulamaları için Dielektrik Ölçüm Yaklaşımı Tabanlı Kompakt U-Yarıklı Yama Anten Tasarımı
Authors: KİRİŞ Orçun
Published: December 2022

Bu çalışmada, X bant uzay uygulamaları için FR4 malzemesinin dielektrik ölçüm yaklaşımına dayalı kompakt bir U-Yarıklı yama anten tasarımı sunulmaktadır. Tasarım yöntemine uygun olarak, anten tasarımlarında kullanılacak HFSS tasarım aracına, FR4 malzemesinin dalga kılavuzu yöntemi kullanılarak X-bantta ölçülen frekansa bağlı dielektrik sabiti ve tanjant kaybı değerleri uygulanmıştır. Daha sonra, yaklaşımın anten tasarımları üzerindeki fonksiyonel performansı, literatürdeki standart bir anten tasarımının benzetim ve ölçüm sonuçları ile kıyaslanarak doğrulanmıştır. Doğrulanan sonuçlar ışığında, önerilen tasarım yöntemi kullanılarak X-bant uzay uygulamaları için yanal yan yarıklara sahip yeni bir U-Yarıklı yama anten tasarımı, bir besleme hattı ile sunulmaktadır. Sunulan kompakt anten tasarımı, merkez frekansta (9,5 GHz) 1,77 dB kazanç ve 8,53 GHz'den 10,63 GHz'e kadar frekans bant genişliği sağlar.
Pengembangan E-LKPD Berbasis Google Sites Bercirikan Pendekatan Saintifik untuk Membangun Pemahaman Konsep Matriks
Authors: Basudewa Wisnu Dharma , Hayuhantika Diesty
Published: December 2022

One way to build understanding of the concept is to make innovations about E-LKPD. This study is aims to develop on process, the process result an E-LKPD based google sites on matrix material using a scientific approach to build a valid understanding of students' concepts. This study refers to one development model, namely the Four-D  (4-D) is Define, Design, Development, and Disseminate. In this study, the researcher modified the Four-D with 3 stages, namely Define, Design, and Development. The results showed that the feasibility level of the E-LKPD based  google sites on the matrix material based on the research of media experts all aspects got a total score of 101, so that when presented the validity of the media it got a value of  78.9% with the "Eligible" category. Furthermore, the feasibility of the E-LKPD based on google sites based on material experts got a total score of 209, so that when presented, media validity got one of the values of 84.2% with "Very Eligible" this category. The response from practitioners, namely the mathematics teacher, got an overall score of 146, so that if presented, it got a score of 86.90% in the "Very Eligible" category. The last trial on students of class X MIPA 2 a total of 9 people with a small group trial got a score of 325, so when presented it got a value of 90.27% with the "Very Eligible" category. This is the E-LKPD based on google sites using a scientific approach to class XI matrix material.
Inovasi Buku Matematika Berpendekatan Realistic Mathematics Education Terintegrasi Nilai Keislaman pada Materi Bilangan
Authors: Taskiyah Aeni Nur , Malasari Putri Nur
Published: December 2022

Mathematics books based on Realistic Mathematics Education (RME) integrated with Islamic values will make mathematics learning more memorable. The reason is, that the books or learning resources used by most students only contain a collection of material and practice questions. In addition, from the factor of students, many still do not understand the material because the examples given are not realistic. The purpose of this study is to determine the feasibility and practicality of mathematics books based on RME integrated Islamic values in grade 7 number material. This study uses the RnD type with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The data collection instruments were interviews, validation sheets, and questionnaires. The population of this study was students of MTs Al-Ma'arif Gembong Pati. The sample is 7th-grade students of MTs Al-Ma'arif Gembong Pati which was taken through the purposive sampling technique. This math book was tested for feasibility by a team of experts consisting of 2 material experts, 2 media experts, and 2 religious experts. In the feasibility test, the material expert got an average score of 115 with very decent criteria. The media expert obtained an average score of 125.5 with very decent criteria. And religious experts get an average score of 64.5 with very decent criteria. Then, to find out the practicality of the book, product trials were carried out in small and large groups. Small groups consisting of 10 students obtained an average score of 66.6 with very practical criteria. A large group followed by 42 students got an average score of 65.9 with very practical criteria. So it can be concluded that the RME-based mathematics book integrated Islamic values in grade 7 number material is feasible and practical to be used in learning mathematics.
Aktivitas Fundamental Matematis pada Kerajinan Wayang Kulit dan Aplikasinya dalam Pembelajaran Matematika
Authors: Fitriyani Dwi Nur , Abdullah Ahmad Anis
Published: December 2022

Mathematics is considered a difficult and boring subject because it involves numbers, symbols, and formulas. The use of culture associated with mathematics will provide new experiences for students in learning mathematics so that it will not cause boredom. The fundamental mathematical aspect that will be observed is the motif and the process by which puppets are made. The purpose of this research to describe fundamental mathematical activity according to Bishop on the shadow puppets craft. The type of research was descriptive qualitative with ethnographic approach. The data collection method that used were interviews, observations, documentation, and references. This research show that mathematics aspect of the shadow puppet craft according to Bishop: (1) counting include a long time of manufacture, number of puppets, number of tools and materials; (2) locating included the division of land, boundaries, placement of motifs; (3) measuring included fat content, calculation size and weight of the device, symmetrical motif size, color mix ratio, gradation level; (4) designing incuded the shapes of tools and materials, sketching, motifs, lines; (5)  playing induded the steps and  process production; and (6) explaining included the meaning of motifs, the use of tatah, and the application of color. In addition, the fundamental aspects of mathematics in the process of making puppets can be implemented in junior high schools in the form of questions.
PELATIHAN OPTIMASI MEDIA SOSIAL UNTUK PENINGKATAN PENDAPATAN PARA PEDAGANG KECIL DI TAMAN MEKARSARI NARMADA
Authors: Kusmayadi Iwan , Suprayetno Djoko , Abidin Zainal , Wardani Laila
Published: December 2022

Target luaran dari pelatihan ini adalah pemasaran strategis berbasis media sosial untuk peningkatan penjualan bagi pelaku UMKM di Taman Mekarsari Narmada. Mitra dalam kegiatan pengabdian pada masyarakat ini adalah para pedagang yang berjualan di lapak yang tersedia di Taman Mekarsari, yang merupakan warga asli dari penduduk setempat.

Permasalahan yang dihadapi adalalah bahwa mitra belum memiliki keterampilan memadai dalam mengoptimalkan pemanfaatan sarana internet maupun penggunaan media sosial sebagai media bisnis online, hal ini dikarenakan belum memiliki pemahaman yang memadai mengenai cara melakukan transaksi bisnis secara online amupun legalitasnya. Metode yang digunakan adalah: observasi dengan menganalisis situasi untuk mendapatkan gambaran permasalahan objek sasaran, pelatihan dan pembinaan terhadap khalayak sasaran sesuai permasalahan dan kebutuhan, serta melakukan evaluasi hasil kegiatan. Hasil kegiatan yang telah dilakukan sesuai dengan harapan dimana peserta aktif dan antusias dalam berpartisipasi pada pelatihan, serta adanya kemauan untuk mengaplikasikan hasil pelatihan untuk memanfaatkan internet untuk meningkatkan penjualan mereka. Selain itu dilakukan survey untuk mendata pemilik usaha dan pengunjung. Tim pengabdian masyarakat juga melatih peserta untuk melakukan analisis SWOT terhadap usaha mereka agar dapat melakukan pemetaan apa yang diinginkan oleh pengunjung dan apa yang dapat mereka tawarkan. 

 

Kata Kunci: media sosial, pemasaran online, diversifikasi produk.
PENGUATAN KAPASITAS IBU MUDA DESA TAWANG SARI – PUJON SEBAGAI AGEN PERUBAHAN DALAM ADOPSI PERILAKU HIDUP SEHAT DALAM MERESPON PANDEMI COVID-19
Authors: Illahi Azizun Kurnia , Laturrakhmi Yun Fitrahyati
Published: December 2022

Tujuan dari kegiatan pengabdian masyarakat ini adalah untuk memberdayakan remaja putri (ibu-ibu) di Desa Tawangsari, Pujon, Kabupaten Malang sebagai agen perubahan. Pemberdayaan itu sendiri mengacu pada kemampuan mereka dalam memilih informasi covid-19, dan kemampuan mewaspadai risiko penularan covid-19. Hal ini juga mengacu pada kecukupan pengetahuan tentang bahaya kesehatan yang dilakukan oleh remaja putri (ibu) dan cara mereka menggunakannya dalam menanggapi pandemi covid-19. Selanjutnya kegiatan ini telah berlangsung di Tawangsari, salah satu dari beberapa desa terluar di Kabupaten Malang. Terutama, masyarakat yang tinggal di sana kurang memiliki pengetahuan dan kesadaran akan gaya hidup sehat. Oleh karena itu, pengabdian masyarakat ini dilakukan melalui beberapa metode yang terdiri dari FGD, seminar komunitas, dan online challenge. Tantangan ini dirancang untuk menilai kemampuan peserta dalam membuat kampanye kreatif untuk mempromosikan gaya hidup sehat terutama dalam menanggapi pandemi covid-19. Setelah mengikuti kegiatan tersebut, remaja putri (ibu-ibu) di Tawangsari sebagai peserta pengabdian masyarakat ini dilaporkan memiliki pengetahuan dan kemampuan yang lebih dalam merancang baik pesan persuasif maupun media kampanye untuk mempromosikan gaya hidup sehat di masa pandemi. Hasil ini membawa dampak positif pada kapasitas mereka sebagai agen perubahan.
English endearments in Elizabeth Gilbert’s Eat Pray Love: the factors and functions
Authors: Giyatmi Giyatmi , Arumi Sihindun
Published: December 2022

ABSTRACTThis study aims at explaining the factors influencing the use of endearment and their functions in the novel Eat Pray Love (EPL) by Elizabeth Gilbert. This study uses Wardhaugh's theory to describe the factors influencing the selection of endearment and Yang's theory to describe their function. This is descriptive research that deals with the use of endearments in the novel. The data of the research is endearments in EPL. The writers used documentation and content analysis in data collection. Data analysis techniques included data collection, reduction, display, and conclusion drawing. The researcher applied source and theoretical triangulation. The researchers found 18 endearments in EPL. The factors influencing the choice of endearment are the degree of intimacy (66,6%), family (16,6%), and particular occasion (16,6%). There are 4 functions of endearment namely; showing closeness (55,5%), showing identity (22,2%), getting attention (16,6%), and showing respect (5,5%). From the results of the study, it can be seen that the most dominant factor determining the use of endearment is the degree of intimacy as it is mostly used by people with a high degree of intimacy such as lovers, close friends, and family. Meanwhile, its most dominant function is to show closeness as a result of the high level of intimacy between the speaker and listener.
Acoustical Evaluation of Café in Heritage Building at Jonker Walk, Melaka
Authors:   Universiti Malaya, Kok How Desmond Lee , Che Din Nazli ,   Universiti Malaya
Published: December 2022

All the time, caféis an essential partof our daily life -a node where people socialize, work, or even where they got their inspiration of idea. Lately, there been booming of adaptive reuse of heritage buildings to become caféalong the Jonker Street Malacca; each caféis various in size and theme. All these projects mainly to restore historical visual traits and focus on restoration through function change. Somehow, designers and planners always neglect the role of sound, which is very crucial element of our environment and daily lives whenmaking place making. Thus, this research is aimed to investigate and evaluate the level of the acoustical performance of adaptive reuse buildings at Jonker Street Malacca. Analytical method on a computational modelling of cafe will be used for this research which involved acoustical evaluation (noise level, reverberation time, Speech Transmission Index) simulation. Few cafe types were modeled in a room acoustic simulation application with a manipulated variable of volume, sizes and ceiling height. Basic sound field properties of typical cafe types are highlighted based on the finding of the study. The generated index from variables hopefully could be used to design and evaluate caféspecific acoustic environments in the future.
State Supervision of Urban Construction: Modern Realities
Authors:   State Inspection of Urban Planning of Ukraine, Vasylchenko Yurii M.
Published: December 2022

The article is devoted to the study of the concept of state supervision and control in the field of urban planning. The methodological basis of the study is general and special methods of scientific knowledge. In particular, the logical-semantic method was used to deepen the conceptual apparatus. The system method, analysis and synthesis, grouping, and structural-logical method also became the basis of the study. The main directions of the state policy in the field of architectural and construction control and supervision in Ukraine are established. The concept and composition of the system of state architectural and construction control and supervision in Ukraine are defined. The issues of reforming the system of state construction control and supervision have been studied. It is emphasized that in crisis conditions the most appropriate direction of state support is indirect means, one of which is the improvement of legislation in the field of construction. Due to the new content of the institute of control in the field of urban planning, conditions are created for the formation of an effective mechanism of control and supervision in Ukraine and meet the constant needs for the development of theoretical foundations that serve as a basis for development and improvement of legislation in the field of construction. As a result -strengthening the authority of the government and increase the efficiency of its implementation.The state of reforming the system of state architectural and construction control and supervision is analyzed. The practical significance of the obtained results is that they are of both scientific-theoretical and practical interest and can be used in: research (the main provisions and conclusions can be the basis for further research in the field of architectural and construction control and supervision); lawmaking (conclusions and recommendations can be the basis for the adoption of bills).
Finite Element Analysis on Triangular Web Profile Steel Section with Opening: Effects of Torsion Behaviour
Authors:   School of Civil Engineering, Universiti Sains Malaysia,14300 Nibong Tebal, Penang, MALAYSIA, De‘nan Fatimah , Hashim Nor Salwani ,   School of Civil Engineering, Universiti Sains Malaysia,14300 Nibong Tebal, Penang, MALAYSIA, Chu Wei Lye ,   School of Civil Engineering, Universiti Sains Malaysia,14300 Nibong Tebal, Penang, MALAYSIA
Published: December 2022

In recent decades, there is a massive demand for steel sections that normally used in the construction of roads, railways, other infrastructures, appliances and buildings.This paper summarizes the torsion behaviour analysis for triangular web profile steel section with opening. Comparison on parametrical study is made using LUSAS software between triangular web profiles steel sections without opening and triangular web profile steel section with opening. A total of eighty finite elements analyses involve the changes of web thickness, flange thickness, span length, incremental loading, and size of circular opening were run to investigate the torsion behaviour effect on web opening shapes. The value of displacement and torsional rotation are the outcome of the final results. It was observed that triangular web profile steel section without web opening are able to maintain the static equilibrium by having higher torsional resistance compared to that of section with web opening.
Strength Performance of Mortar Containing Bagasse Ash and Rice Husk Ash as Cementitious Material
Authors:   Department of Civil Engineering,Mehran University of Engineering and Technology,SZAB Campus Khairpur Mir’s,PAKISTAN, Hyder Sarfraz , Mangi Sajjad Ali ,   Department of Civil Engineering,Mehran University of Engineering and Technology,SZAB Campus Khairpur Mir’s,PAKISTAN, Ali Suhail ,   Department of Civil Engineering,Mehran University of Engineering and Technology,SZAB Campus Khairpur Mir’s,PAKISTAN, Narejo Rukhsar Ali ,   Department of Civil Engineering,Mehran University of Engineering and Technology,SZAB Campus Khairpur Mir’s,PAKISTAN, Shahidan Shahiron ,   Jamilus Research Center,Faculty of Civil Engineering and Built Environment, Universiti Tun Hussien Onn Malaysia, MALAYSIA
Published: December 2022

The use of cement as a main binding materialin the field of civil engineering is no doubt at the next level due to growth inurbanization.It is mainly used to make cementmortar, concrete, and other composite construction material. The extensive use of OPC in the constructionindustry has caused increment in the production of CO2at atmosphere. This has deteriorated theenvironment and has urged everyone to study and research the sustainable progress by using differentwaste products as replacement in concrete and mortar. Therefore, the purpose of this study was toinvestigate the strength performance of cement mortar containing Sugarcane Bagasse Ash (SCBA) andRice Husk Ash (RHA) as a Cementitious Material. In this study, we have substituted the cement withdifferent percentages i.e.,0%, 5%, 10% and 15% of both sugarcane bagasse ash (SCBA) and rice husk ash(RHA) to obtain sustainable mortar. Flowability, Density and compressive strength wereexamined by casting 36 standard cubes of 50mm size and cured for 3, 7 and 28 days. Testoutcomes indicated that the flowability of mortar paste kept on decreasing with the increase in partialreplacement bySCBA and RHA. As we have fixed the water cement ratio for all type of mixi.e., 0.5.From the outcomes of Density and Compressive Strength of Cubes cured in plain water, we come to knowthat as % replacement was increasing the density and compressive strength of cubes cured was reducing.For Compressive Strength, it wasfound that at each specified day, the compressive strength of cubes up to10% replacement has given a reasonable value but intensely decreased at 15% replacement. At 5%replacement of both SCBA and RHA on 28th day test it was pointed that compressive strength of cubeshas the highest values for all % of replacement.
Initial Study of Converting Sound Energy into Electrical Energy
Authors:   Structural Integrity and Monitoring Research Group(SIMReG),Faculty of Mechanical and Manufacturing Engineering,Universiti Tun Hussein Onn Malaysia, Batu Pahat, 86400, MALAYSIA, Muhammad Salleh Hamizah , Yahya Musli Nizam ,   Structural Integrity and Monitoring Research Group(SIMReG),Faculty of Mechanical and Manufacturing Engineering,Universiti Tun Hussein Onn Malaysia, Batu Pahat, 86400, MALAYSIA
Published: December 2022

This study concerns on finding alternative source of energy by finding out the method of converting available and unused sound energy into electrical energy. The environmental issueincluding noise from the devices, factory etc has been increasing from year-to years. The purpose of this study includes to investigate the possibility of converting sound wave in a range between 70 dB to 80 dB into electrical energy by determining the effectiveness of the method to transform sound wave into electrical energy and study the percentage error between the theoretical and experimental output voltage produced. An electronic circuit-based experiment was conducted to fulfil the objectives of the study. Sound energy was converted into electrical energy by using microphonetransducer, then the brightness of bulb and the voltage reading was observed and tabulated. Theoretical and experimental voltage value were compared and being represented in percentage error value. The data shows that there is potential of converting sound into electricity through the suitable electrical circuit and the output voltage increase linearly with the sound pressure levels (SPL) of the sound sources. Further research should include the study of relationship between distance of sound sources and the transducer, and the output voltage produced
A System of Child Detection in Car Using Thermal Sensor
Authors:   Faculty of Electrical & Electronic Engineering,Department of Electrical & Electronic Engineering, Universiti Tun Hussein Onn Malaysia (UTHM),Parit Raja,86400, MALAYSIA, Norhuzaini Ahmad Aminnuddin , Yaacob Maslina ,   Faculty of Electrical & Electronic Engineering,Department of Electrical & Electronic Engineering, Universiti Tun Hussein Onn Malaysia (UTHM),Parit Raja,86400, MALAYSIA, Ngajikin Nor Hafizah ,   Faculty of Electrical & Electronic Engineering,Department of Electrical & Electronic Engineering, Universiti Tun Hussein Onn Malaysia (UTHM),Parit Raja,86400, MALAYSIA
Published: December 2022

There are some cases about the child died in the car that causes by the parent did not aware their child being left in the car in long duration time. Therefore, there is a project that can overcome the problem of children being left behind in the car that is a prototype that can detect children in the car by using heat-sensing technology and effective indicators to users so that users are aware of the indicators in the prototype system be created. The system of the prototype consists of Arduino MKR WIFI 1010, thermal sensor, buzzer, LEDs, relay, and power bank that be constructed in circuit. This work evaluates the prototype able to detect child remain in car using thermal sensor with detection range is 37cm on the rear car seat and also able to notify the user about its using indicator LED and buzzer alarm. The prototype will connect to the car to operate as the flow in the flowchart. This prototype helps the user to prevent the child be left in a car.