bluuebunny/crossref_metadata_2025 huggingface dataset:
Free and Internal Energies for the Adsorption of Short Alkanes into the Zeolite SSZ-13 from Ab Initio Molecular Dynamics Simulations
Authors: Hutton Daniel J. , Göltl Florian
Published: August 2023

Electronic structure calculations have become a valuable tool in understanding chemical reactions of hydrocarbons in zeolite pores. However, commonly applied approaches to calculate free energies based on static electronic structure calculations significantly overestimate the entropic penalty for molecular adsorption into zeolite pores. Here, we use ab initio molecular dynamics (AIMD) simulations to model the adsorption of methane, ethane, and propane to purely siliceous and protonated SSZ-13. In our analyses we focus on the internal and Helmholtz free energies of adsorption of each molecule and compare our results to various approaches for the calculation of free energies based on static calculations. We find that only an approach that retains two thirds of the translational entropy of the adsorbate upon adsorption compares favorably with AIMD simulations. However, comparison to experimental measurements of Gibbs free energies of adsorption reported in the literature implies that we might not have captured the full complexity of alkane adsorption in our model. We expect that results in this work will help to develop a better understanding of alkane adsorption in zeolites, and that the provided data will serve as a benchmark for free energy calculations of alkane adsorption in zeolites in the future.
Gaussian Attractive Potential for Carboxylate/Cobalt Surface Interactions
Authors: WU Xiaojing , Steinmann Stephan N. , Michel Carine
Published: August 2023

Ligand-decorated metal surfaces play a pivotal role in various areas of chemistry, particularly in selective catalysis. Molecular dynamics simulations at the molecular mechanics level of theory are best adapted to gain complementary insights to experiments regarding the structure and dynamics of such organic films. However, standard force fields tend to capture only weak physisorption interactions. This is inadequate for ligands that are strongly adsorbed such as carboxylates on metal surfaces. To address this limitation, we employ the Gaussian Lennard-Jones (GLJ) potential, which incorporates an attractive Gaussian potential between the surface and ligand atoms. Here, we develop this approach for the interaction between cobalt surfaces and carboxylate ligands. The accuracy of the GLJ approach is validated through the analysis of the interaction of oxygen with two distinct cobalt surfaces. The accuracy of this method reaches a root mean square deviation (RMSD) of about 3 kcal/mol across all probed configurations, which corresponds to a percentage error of roughly 4%. Application of the GLJ force field to the dynamics of the organic layer on these surfaces reveals how the ligand concentration influences the film order, and highlights differing mobility in the x and y directions, attributable to surface corrugation on Co(1120). GLJ is versatile, suitable for a broad range of metal/ligand systems, and can, subsequently, be utilized to study the organic film on the adsorption/desorption of reactants and products during a catalytic process.
C−F Bond Activation Enables Synthesis of Aryl Difluoromethyl Bicyclopentanes as Benzophenone-Type Bioisosteres
Authors: Chen Mingshuo , Cui Yuang , Chen Xiaoping , Shang Rui , Zhang Xiaheng
Published: August 2023

Bioisosteric design has become an essential approach in the development of novel drug molecules. Recent advancements in synthetic methodologies have enabled the rapid adoption of this strategy into drug discovery programs. Consequently, conceptionally innovative practices would be appreciated by the medicinal chemistry community. Here we report an expeditous synthetic method for synthesizing aryl difluoromethyl bicyclopentane (ADB) as a novel bioisostere of the benzophenone core. This approach involves the merger of light-driven C−F bond activation and strain-release chemistry under the catalysis of a newly designed N-anionic-based organic photocatalyst. This defluorinative coupling methodology enables the direct conversion of a wide variety of commercially available trifluoromethylaromatic C−F bonds (more than 60 examples) into the corresponding difluoromethyl bicyclo[1.1.1]pentanes (BCP) arenes/difluoromethyl BCP boronates in a single step. The strategy can also be applied to [3.1.1]and [4.1.1]propellane systems, providing access to analogs with different geometries. Moreover, we have successfully used this protocol to rapidly prepare ADB-substituted analogs of the bioactive molecule Adiporon. Biological testing has shown that the ADB scaffold has the potential to enhance the pharmacological properties of benzophenone-type drug candidates.
DO AGE COHORT AND PERSONAL INCOME MATTER IN GREEN MARKETING? THE CASE OF THE SLOVAK REPUBLIC
Authors: Dzurikova Sona , Zvarikova Katarina
Published: August 2023

Research background: As the public's attitude towards the climate crisis evolves, knowledge about the depth of this problem also evolves, and a great emphasis is placed on protecting the environment and moving from a consumerist lifestyle to a sustainable one whereby this knowledge is better in developed countries than in developing ones. Purpose of the article: Because marketing operations increase consumption and waste while reducing product life cycles, companies have been partially blamed for environmental damage. The industrial and marketing sectors had to adapt their roles and strategies in response to this developing trend to recognize the value and need for green marketing. Methods: The survey, which was focused on the perception of green marketing by Slovak consumers, was conducted from February 15th to February 23rd 2023, via Google forms. In our survey, 414 respondents take part. The statistical application IBM SPSS Statistics was then used to process the findings. The study questions were validated using descriptive statistics, the Chi-squared test of independence, and one sample test for a dichotomous outcome at the significance level of 5 %. Findings & Value added: This study confirms that even in the specific conditions of Slovakia, age and income group represent factors that influence consumers when buying ecological products. On the other hand, if they encounter greenwashing, they are negatively influenced in their future purchasing decisions. The value-added lies in the fact that in the conditions of the Slovak Republic, this topic is still relatively new and is confronted with the country's specifics, so the study offers to various companies the results that green marketing activities should be focused on the different age cohorts with different strategies.
A BIBLIOGRAPHIC REVIEW OF CHINA’S ECONOMIC DEVELOPMENT FROM 1949 TO 2023
Authors: Jing Cai , Neszmélyi György Iván
Published: August 2023

Research background: Ever since Deng Xiaoping introduced the reform and opening-up subpolicy in 1978, China has been able to carve out a distinct socialist economic development path with Chinese characteristics. This trajectory has been instrumental in propelling China towards unprecedented levels of economic growth, albeit accompanied by a host of complex and deeply ingrained challenges. As such, China must now take the onus of transforming its economic development paradigm to unlock new growth opportunities and overcome the persisting issues that have emerged in the wake of this rapid growth. Purpose of the article: The authors furnish a thorough and meticulous description of China's past and present voyage towards economic growth and evaluate the diverse impediments that China encounters in its quest for economic development. The authors' intention is to serve as an example for other developing nations to follow suit and learn from China's experience. Methods: This scholarly paper employs the literature review method to scrutinize the articles published in international and Chinese domestic academic journals that discuss China's economic development spanning from 1949 to 2023. Findings & Value added: The economy is undergoing a transition from expanding production capacity to improving production efficiency. China's economic growth is now driven by innovation and enhanced production efficiency, supported by the government's innovationdriven development strategy. While the government's future priorities include promoting the digital economy and sustainable development, the current focus is on stabilizing growth, employment, and prices amid the Covid-19 pandemic. To achieve this, the government must implement proactive fiscal policies and cautious monetary policies to ensure financial stability and encourage the dynamism of the micro economy through macroeconomic management.
Preference for and consumption of traditional and fast foods among adolescents
in Indonesia
Authors: Briawan D. , Khomsan A. , Alfiah E. , Nasution Z. , Putri P.A.
Published: August 2023

This study aimed to examine the preference for and consumption of traditional and fast
foods among adolescents in Indonesia and their relationship to social, economic,
demographic, and regional factors. This cross-sectional study was conducted online in six
provinces in Java and Bali (JB) and nine provinces outside Java and Bali (OJB), involving
4,500 junior high school, high school and university students. Questionnaire items that
have been tested included personal and family information, food preferences (three Likert
scales), frequency of food consumption (never, ≤ 1/month, 2-3 times/month, and ≥4 times/
month) for about 10–20 types of traditional food and 17 types of fast food that varies
among the provinces. The t-test was applied to analyze the differences in scores and
frequency of food consumption in Java and Bali (JB) and the provinces outside Java and
Bali (OJB). Logistic regression was employed to discover factors that contributed to the
frequency of consumption of traditional food and fast food. In the provinces outside Java
and Bali, traditional foods—especially groups of food made with cereals, vegetables,
seafood, bean and legumes, and traditional snacks—are preferred and consumed over fast
food. In Java and Bali, fast food is preferred over traditional food. However, some food
groups such as cereals, vegetables and seafood are consumed more in the form of
traditional food and snacks. The results showed that in Java and Bali, most adolescents
preferred fast food to traditional food (P<0.05). Although fast food was preferred,
adolescents in Java and Bali more than often consumed traditional foods made with
cereals, vegetables, seafood, beans and legumes, and traditional snacks; because
traditional food is more affordable (P<0.05). Meanwhile, in provinces outside Java and
Bali, adolescents generally prefer traditional food to fast food. This is in line with the
frequency of consumption of traditional food which was also higher than that of fast food
from most food groups (P<0.05). Consumption of traditional food and fast food is
influenced by several social, economic, and demographic factors such as gender, place of
residence, educational level of the adolescents, parental occupation and income, as well as
online food purchase habits (P<0.05).
Is Sustainable Tourism Development Important for an Emerging Economy? A Study in Malaysia on Factors Affecting Locals’ Attitude
Authors:   Azman Hashim International Business School, Universiti Teknologi Malaysia, Malaysia, Poh-Chuin, Teo , C.F. Ho Theresa ,   Azman Hashim International Business School, Universiti Teknologi Malaysia, Malaysia, Suan Choo Ling ,   College of Business Administration, University of Bahrain, Kingdom of Bahrain , Bahrain
Published: August 2023

The tourism industry has been recognized as one of the most contributing industries to many countries in the world. However, the COVID-19 pandemic has badly hit the tourism industry, which has deteriorated its performance since 2019. Many countries are moving toward the endemic phase, including Malaysia, and they are opening the country border again to the global travelers. This study aims to examine the attitude of Malaysians toward the country’s tourism development, whereby the influence of perceived sustainable local community development, specifically on economic impact, social impact, and environmental impact, was examined. Based on data collected from a total of 210 survey responses using purposive sampling, economic impact and environmental impact have shown significant positive influence on the attitude of the locals. Implications to policy makers, researchers and market practitioners have also discussed in this study. This paper ends with discussion on research limitations and recommendations for future researchers.
Exploring Factors that Predict Undergraduates’ Behavioural Intention to Digitalised Personalised Learning
Authors:   Faculty of Humanities and Health Sciences, Curtin University Malaysia, Malaysia, Sabani Noraisikin , Salleh Sallimah ,   Sultan Hassanal Bolkiah Institute of Education, Universiti Brunei Darussalam, Brunei, Abdullah Shamsul Kamariah ,   Faculty of Business, Curtin University Malaysia, Malaysia, Jimmie Anita ,   Faculty of Humanities and Health Sciences, Curtin University Malaysia, Malaysia
Published: August 2023

The study explores factors that may predict undergraduates' behavioural intention to personalise their learning through utilising digital technology, which is accessible to them both in their homes and at university. The research design is non-experimental and employs a research questionnaire survey as a research instrument. Twenty-two items have been included, based on the Unified Theory of Acceptance and Use of Technology 2 theoretical framework. The responses from 203 undergraduates from East Malaysia studying in two public universities in Sarawak have been analysed descriptively, illustrating the respondents' varying backgrounds. Additionally, factor analysis was conducted, indicating an extraction of six out of seven variables originally anticipated, excluding Facilitating Conditions from the equation. Multiple linear regression analysis revealed that four of the five independent variables signified in factor analysis significantly correlate to the behavioural intention of utilising digital technology to personalise learning. These factors are student agency, performance expectancy, social influence and effort expectancy.
The Dynamic Capabilities of Social Media : Contribute to Librarian Efficiency
Authors:   Universiti Teknologi Mara (Puncak Perdana), Malaysia, Husain Haslina , Abdullah Sani Mad Khir ,   Universiti Teknologi Mara (Puncak Perdana), Malaysia, Salim Tamara Adriani-Susetyo ,   Department of Library and Information Studies, Faculty of Humanities, Universitas Indonesia, Indonesia
Published: August 2023

Social media play a vital role in libraries today. This study aims to explore the capabilities have in social media and its effect on librarians’ efficiency. This article briefly explains the dynamic capabilities of social media that contribute to librarian efficiency. Four capabilities have been identified from the literature review: (i) information processing capability, (ii) relationship capability, (iii) service innovation capability, and (iv) tools capability. Each of the capabilities has its criteria and characteristics. All the capabilities support the libraries to fulfill their user's needs. The dynamic capabilities of social media contributed to librarians’ efficiency in many aspects such as literacy skills, reference, and user services. This article also shared the experience of academic libraries in Western Uttar Pradesh, New Zealand, Ghana, Sri Lanka, and Malaysia in using social media for librarians’ efficiency. This study will contribute to the effectiveness and efficiencies of the librarians in organizing the libraries.
Building an Emotionally Intelligent Organization in the World of it: A Conceptual Framework
Authors: Bhatt Khushboo Deepakkumar , Sable Reshma Gunaji
Published: August 2023

Purpose:  To provide importance of Human Skills how does it help to build and Emotionally Intelligent organization by considering various components of emotional intelligence and learning organization.
 
Theoretical framework: Based on review of literature is has been observed that there is a pressing need of being an emotionally intelligent organization by having emotionally intelligent employees and practicing learning organization in the current technology era. Emotional intelligence is a valuable resource that can renew and re-ignite organizational purpose and inspire people to perform better. As clients will attest, the emotionally intelligent organization is in tune with its needs (Oosten, Boyatzis et al., 2003).
 
Design/methodology/approach:  This study employs a qualitative approach to explore the methods of constructing an Emotionally Intelligent Organization. Through an extensive review of literature, the researchers have identified multiple variables relevant to this pursuit. Ultimately, the paper proposes a conceptual model that organizations can adopt to enhance their emotional intelligence.
 
Findings:  Embracing emotionally intelligent organizations in the era of information technology offers significant benefits by promoting a humane approach in the workplace.
 
Originality/value:  The value of the study reveals that, fulfilment is regularly tied to its capability to attract, retain, and recognize talented and effective employees.
Evaluation of the 2020 Investment Law in Vietnam
Authors: Thai Le Minh
Published: August 2023

Objective: The study investigates the 2020 Investment Law in Vietnam. The study employs a set of aggregated data from previous studies, the results of a survey of 135 lecturers and lawyers. At the same time, the study also receives comments from experts experienced in the research field.
 
Method: We used qualitative research methods and quantitative research methods to evaluate and measure new contents in the 2020 Investment Law in Vietnam, which focuses on such contents as: Fundamental reforms in investment procedures, emphasizing the transparency of conditional business investment portfolios, the list of prohibited investment sectors, shortening the time view investment projects, apply information technology in investment procedures with foreign investment projects, etc.
 
Results: The results show that new contents in the 2020 Investment Law in Vietnam is highly appreciated.
Малое и среднее предпринимательство в республиках Северного Кавказа: современное состояние и проблемы развития
Authors: Шахтаманова Лейла Гаджикурбановна
Published: August 2023

В статье анализируется современное состояние субъектов малого и среднего предпринимательства в республиках Северного Кавказа. Цель данной работы - выявить проблемы развития субъектов малого и среднего предпринимательства в республиках Северного Кавказа. Методология исследования. Методологической основой послужили такие общенаучные методы исследования, как сравнительный, логический и статистический анализ. С помощью данных методов рассматривается современное состояние малого и среднего предпринимательства в республиках Северного Кавказа. Результаты: выявлены современные проблемы развития субъектов малого и среднего предпринимательства на основе проведенного анализа их современного состояния. Область применения: проведенное исследование может представлять интерес для органов государственной власти, специалистов в области МСП, а также научных работников, занимающихся вопросами развития сектора малого и среднего предпринимательства. Выводы: успешное развитие сектора МСП в республиках Северного Кавказа нуждается в разработке комплекса мер, с помощью которых на территориях республик будет созданы благоприятные условия, посредством которых этноэкономические компоненты, присущие экономикам республик, будут интегрированы в современную систему хозяйствования.
Pemodelan Tarikan Pergerakan Pengunjung Pasar Tradisional di Kecamatan Pemalang
Authors: Herman Herman , Purwanti Oka , Ramadhan Adhitya Sukma
Published: August 2023

ABSTRAKPemodelan tarikan pergerakan pengunjung pasar tradisional di Kecamatan Pemalang menggambarkan pergerakan pengunjung dengan moda transportasi yang pergi menuju ke beberapa pasar tradisional di Kecamatan Pemalang. Penelitian ini bertujuan untuk membuat pemodelan yang dapat meramalkan pergerakan tarikan pengunjung ke pasar tradisional di Kecamatan Pemalang. Data penelitian diperoleh melalui pengamatan dan pengelola pasar. Dengan tarikan pergerakan sebagai variabel terikat (Y), pemodelan menggunakan 2 variabel bebas dari 5 variabel bebas yang ada. Variabel yang dimaksud yaitu Luas Lahan (X3) dan Jumlah Penduduk Desa Setempat (X5). Pembuatan model menggunakan analisa regresi linear berganda. Model terbaik untuk menggambarkan tarikan pergerakan pengunjung pasar tradisional di Kecamatan Pemalang adalah Y = 228,427 + 0,006 X3 + 0,0015 X5 dengan nilai R2 = 0,983.Kata kunci: pemodelan, tarikan pergerakan, pasar tradisional, variabel ABSTRACTThe modeling of the trip attraction of traditional market visitor movements in Pemalang District describes the movement of visitors by transportation modes that go to several traditional markets in Pemalang District.  Aims to create a model that can predict the movement of visitor attraction to traditional markets in Pemalang District.  Research data obtained through observations and market managers.  With the pull of movement as the dependent variable (Y), the modeling uses 2 independent variables from 5 existing independent variables.  The variables in question are land area (X3) and Number of Local Villagers (X5).  Making the model using multiple linear regression analysis.  The best model to describe the attraction of traditional market visitors in Pemalang District is Y= 228,427+ 0.006 X3 + 0.001 X5 with R2 = 0,983.Keywords: modeling, trip attraction, traditional market, variables
Kajian Pengaruh Kadar Optimal Volume Pasir dalam Campuran Beton dengan Metode SNI 03-2834-2000
Authors: Adzani Muthia Alya Lufhfy , Saelan Priyanto
Published: August 2023

ABSTRAKPeluang ketercapaian kuat tekan beton metode SNI yang dianalisis dengan metode Dreux membuktikan bahwa kadar pasir pada metode SNI tersebut dapat mencapai kuat tekan beton yang direncanakan. Tujuan dari penelitian ini yaitu untuk menentukan nilai kadar optimal volume pasir dalam agregat gabungan pada campuran beton yang dapat diberlakukan pada semua ukuran maksimum agregat kasar. Kriteria kadar optimal pasir yaitu kadar pasir yang dapat membuat adukan beton segar mudah dikerjakan, terhindar dari peluang segregasi, dan apabila terjadi perubahan pada kadar pasir dalam praktik pembuatan beton di lapangan, maka kadar pasir masih berada dalam batas kurva gradasi agregat SNI, sehingga kuat tekan beton tetap tercapai. Data dalam penelitian ini berupa data sekunder hasil pengujian kuat tekan beton 28 hari metode SNI. Hasil analisis pada penelitian memberi kesimpulan bahwa kadar volume 40% dapat dijadikan kadar optimal volume pasir dalam campuran beton metode SNI.Kata kunci: volume pasir, kadar optimal, kuat tekan beton, metode SNI ABSTRACTThe probability of achieving the compressive strength of concrete mix design by SNI in this study was analyzed through the Dreux method. The results of the analysis indicated that the sand content in the concrete mix design by SNI was capable of achieving the planned compressive strength of the concrete. This study was intended to determine the optimal volume of sand content in combined aggregate in concrete mixtures that can be applied to all maximum sizes of coarse aggregate. The optimal criteria for the sand content involved in this study were the sand content that was able to facilitate the mixing of concrete, avoid the possibility of segregation, and the sand content remained within the limits of the SNI aggregate gradation curve even though changes were found in the sand content during the concrete manufacturing process in the field, thereby still achieving the compressive strength of concrete. This study utilized secondary data from the 28-day concrete compressive strength test by SNI. The results of the analysis in the study concluded that the volume content of 40% can be used as the optimal content of sand volume in the concrete mix design by SNI.Keywords: volume of sand, optimum content, compressive strength, SNI method
Uji Eksperimental Pengaruh Konfigurasi Bilah Terhadap Performa Turbin Ventilator di Air
Authors: Sucie Elia , Nindito Dwi Anung , Jaya Allan Restu
Published: August 2023

ABSTRAKTeknologi turbin angin ventilator memiliki prinsip kerja yang hampir sama dengan turbin hidrokinetik yang berpenggerak aliran air. Density air yang lebih besar daripada angin menghasilkan power turbin yang lebih baik. Perbedaan density inilah yang menjadi alasan untuk mengembangkan turbin hidrokinetik dari turbin angin ventilator yang memiliki banyak bilah. Studi ini bertujuan untuk menguji performa turbin ventilator pada aliran air di saluran prismatik pada keadaan low head. Metode eksperimental digunakan untuk mengetahui performa turbin yang dihasilkan melalui perubahan distribusi kecepatan dan konfigurasi bilah. Hasil pengujian menghasilkan performa turbin ventilator yang beragam untuk masing-masing konfigurasi yang diamati. Penggunaan konfigurasi bilah secara penuh (lengkap) pada seluruh keliling turbin ventilator menghasilkan RPM dan torsi yang lebih tinggi daripada konfigurasi bilah 3/4 bagian maupun 1/2 bagian turbin ventilator. Gradien perubahan TSR terhadap  yang paling optimal dihasilkan oleh turbin ventilator bilah penuh.Kata kunci: distribusi kecepatan aliran, konfigurasi bilah, turbin ventilator ABSTRACTTechnology of ventilator wind turbine has similar work principle to hydrokinetic turbine with water flow driven. Water density that is bigger than wind results better turbine power. This density difference becomes the reason to develop hydrokinetic turbine from ventilator wind turbine that has many blades. This study aimed to test the performance of ventilator turbine on water flow in prismatic channel during low head condition. Experimental method was used to find out turbine performance resulted through the change of flow velocity distribution and blade configuration. The testing result obtains various ventilator turbine performance for each observed configuration. The usage of full (complete) blade configuration in all surrounding of ventilator turbine produces higher RPM and torque compared to blade of 3/4 part or 1/2 part of ventilator turbine. Gradient of TSR change towards  the most optimal one is produced by full blade ventilator turbine.Keywords: flow velocity distribution, blade configuration, ventilator turbine
Penetapan Tarif Kereta Api Cepat Jakarta - Bandung
Authors: Purwanti Oka , Herman Herman , Karo Karo Edianto
Published: August 2023

ABSTRAKJumlah pergerakan orang antara Jakarta – Bandung bisa dikatagorikan tinggi setiap harinya. Akibatnya timbul masalah kemacetan di jaringan jalan karena penggunaan kendaraan pribadi. Keretra Api Cepat Jakarta Bandung merupakan salah satu usaha untuk mengatasinya. Jarak Kereta Api Cepat Jakarta Bandung sejauh 143 km. Permasalahan lain yaitu penetapan tarif Kereta Api Cepat tersebut. Hal ini merupakan faktor sensitifitas seberapa banyak penumpang mau menggunakannya. Metoda penetapan tarif menggunakan Kemampuan Membayar (Ability to Pay, ATP) dan Kemauan Membayar (Willingness to Pay, WTP). Pengumpulan data dengan melakukan survei terhadap pengguna kendaraan pribadi Jalan Tol Padaleunyi menggunakan metode stated preference. Hasil penelitian yaitu ATP sebesar Rp319.772,00 dan WTP untuk tarif sebesar Rp210.347,00.Kata kunci: ATP, WTP, tarif kereta depat ABSTRACTJakarta is one of the largest cities in Indonesia and has transportation problems that can be categorized as quite complex problems, including traffic congestion. To overcome the traffic congestion problem, a high-speed rail was built in Indonesia which connected the city of Jakarta and Bandung in West Java province, with a distance of 143 km. To find out the ability to pay and willingness to pay of prospective users of the Jakarta Bandung high speed rail mode of transportation, this research was conducted. The data collection method is by surveying private vehicle users located in the Rest Area KM 97 Padaleunyi Toll Road using the stated preference method. The results of the study are ATP is IDR319.772,00 and WTP is IDR210.347,00.Keywords: ATP, WTP, High Speed Rail Fares
Pembelajaran Berbasis Masalah: Penerapan Teknologi Rumah Instan Sederhana Sehat (RISHA) di Indonesia
Authors: Mulyawan Zefanya Handika , Wimala Mia , Carissa Carissa
Published: August 2023

ABSTRAKGuna mengatasi permasalahan backlog hunian di Indonesia, salah satu alternatif yang ditawarkan oleh Kementerian Pekerjaan Umum dan Perumahan Rakyat (PUPR) adalah teknologi modular beton pracetak Rumah Instan Sederhana Sehat (RISHA). Beberapa keunggulan yang ditawarkan meliputi peningkatan efisiensi waktu, peningkatan keamanan konstruksi, pengurangan sampah konstruksi, kebutuhan pekerja yang minimum, desain yang sederhana, dan ramah lingkungan. Sampai saat ini, teknologi ini lebih banyak diterapkan untuk konstruksi rumah darurat bencana dan bukan untuk hunian swadaya. Untuk memenuhi tuntutan kebutuhan hunian yang semakin menantang di masa mendatang, pembelajaran melalui permasalahan-permasalahan yang dihadapi di lapangan perlu dikaji dan dievaluasi lebih lanjut. Penelitian awal ini bertujuan untuk mengidentifikasi permasalahan yang timbul selama penerapan teknologi RISHA baik pada tahap perencanaan, produksi, konstruksi, maupun pemeliharaan. Kajian literatur, bimbingan teknis, dan wawancara dilakukan terhadap beberapa aplikator yang tersebar di seluruh Indonesia dilakukan untuk menjawab tujuan tersebut. Hasil penelitian menunjukkan berbagai permasalahan yang dapat diklasifikasikan ke dalam empat aspek, yaitu sistem manajerial dan prosedural, arsitektural dan struktural, finansial dan ekonomi, serta sosial dan stakeholders. Setelah itu, beberapa strategi yang dapat bermanfaat bagi upaya pengembangan teknologi RISHA juga dihasilkan berdasarkan analisis SWOT.Kata kunci: RISHA, beton pracetak, teknologi modular, permasalahan penerapan RISHA ABSTRACTTo overcome the housing backlog problem in Indonesia, The Ministry of Public Works, and Public Housing (PUPR) has offered a precast concrete modular technology, Rumah Instan Sederhana Sehat (RISHA). Its advantages include increased time efficiency, enhanced construction safety, reduced wastage, minimal labor requirements, simple design, and eco-friendly. Until now, RISHA is mostly used for disaster emergency housing, and not for self-support houses. To meet the housing demands that will be increasingly challenging in the future, learning through the problems encountered in its application needs to be studied and evaluated further. This initial research aims to identify problems that arise during the application of RISHA technology at various stages, i.e., planning, production, construction, and maintenance. A literature review, technical guidance, and interviews with several applicators spread throughout Indonesia were conducted to answer the objective. The results indicate various problems that can be classified into four aspects, namely managerial system and procedural; architectural, and structural; financial, and economic; and social and stakeholders. Furthermore, several strategies that can be useful for RISHA development efforts are also generated based on a SWOT analysis.Keywords: RISHA, precast concrete, modular technology, RISHA’s implementation issues
The effect of financial performance, company size, and gross domestic product on abnormal returns
Authors: Mustofa Ahmad Abros , Berniz Yulis Maulida , Susanto Adi
Published: August 2023

This study focuses on the effect of financial performance, firm size, and gross domestic product on abnormal returns. Financial performance is measured by proxies for liquidity, profitability, earnings per share, leverage, and market value. The object of this study was manufacturing companies listed on the Indonesia Stock Exchange in 2016-2020 and samples were taken using a purposive sampling technique so that a sample of 114 manufacturing companies was obtained. The analysis technique in this study uses multiple linear regression analysis. The results showed that liquidity (CR), earnings per share, leverage (DER), market book value (MBR), and firm size had no effect on abnormal returns. Profitability (ROE) has a positive effect on abnormal returns, and the gross domestic product has a negative effect on abnormal returns.
Performance evaluation based on economic value added in transportation companies
Authors: Lalo Alfian , Cahyaningsih Diyah Sukanti
Published: August 2023

Financial performance can be measured by various measurement methods, one of which is Economic Value Added (EVA). EVA is a performance measurement that considers the benefits based on the added value that can be obtained. Measuring the performance of transportation companies is currently very necessary considering that technological developments have brought many changes to the transportation industry. This research was conducted at PT Blue Bird Tbk. Secondary data was obtained through annual financial reports for the 2019-2021 period on the IDX website and supporting websites using the documentation method. Data were analyzed in four stages of EVA Performance measurement which consisted of NOPAT (Net Operating After Taxes), Invested Capital, WACC (Weight Average Cost of Capital), and Capital Charge. The results of the study using the EVA method obtained an EVA value 0 (negative value), meaning that the company was not successful in producing economic added value. The decline in the value of EVA is suspected to be due to several factors such as the COVID-19 pandemic where restrictions on community activities and the availability of online transportation were imposed.
Turizm İşletmeleri ve İç Kontrol Sistemi
Authors: AHMED Zanyar
Published: August 2023

Araştırmanın amacı, turizm işletmelerinin kuruluş, yapı, özellikleri temelinde iç kontrol sisteminin uygulanması, rol ve öneminin belirlenmesi şeklindedir. Etkin bir iç kontrol sisteminin uygulanması ile kurumun kontrol ortamının incelenmesi ve anlaşılması, teknik yönetici ve çalışanların, iç kontrol sisteminin bileşenlerinin ve gerçekleştirdiği ana faaliyetlerin veya yardımcı faaliyetlerin yapılandırılmasının öneminin ne ölçüde farkında olduklarının bilinmesine katkı sağlanmaktadır. Ayrıca, kontrol sisteminin maliyeti, ulaştığı amaç veya hedefleri aşmamalı, sistem kuruma maliyetinin üzerinde fayda veya getiri sağlamalıdır. Böylece, kontrol sisteminin uygulanması kuruma değer katmayı sağlayacaktır.
Ziya Gökalp'ın Alageyik Manzum Masalının Göstergebilimsel Analiz Metoduna Göre İncelenmesi
Authors: TARAKÇI Gülsüm
Published: August 2023

Saussure’ün gösterge teorisi ile Propp’un yapısalcı görüşleri üzerine temelleri şekillenen göstergebilimin en önemli temsilcisi A. J. Greimas’tır. Anlatının gösteren ve gösterilen olmak üzere biçim ve içerikten oluşan bir bütün olduğunu söyleyen Greimas, içeriğe biçimden yola çıkılarak ulaşılabileceğini ifade eder. Yüzey yapıdan derin yapıya ulaşılabilmesi için bir anlatının kesitlere ayrılması gerektiğini belirterek her bir kesitin kendi başına bir bütün ve bu her bütünün de anlatının tamamına ait bir parça olduğunu söyler. Anlatıdaki anlamın ikili karşıtlıklardan doğacağına vurgu yapan Greimas, geliştirdiği göstergebilimsel dörtgen modeliyle ikili karşıtlıklardan hareketle derin yapıdaki mantıksal-anlamsal bütünün ortaya çıkabileceğine işaret eder. Bu çalışmada Greimas’ın göstergebilimsel çözümleme yöntemi Ziya Gökalp’in Alageyik manzum masalına uygulanmaya ve yüzey yapıdan hareketle anlatıdaki derin yapı ortaya çıkarılmaya çalışılacaktır. Uygulamadan önce göstergebilimsel metodun kullandığı kavramlar üzerinde durulacak ve ardından kesitlere ayrılan anlatıdaki anlamın çözümü göstergebilimsel dörtgen modeliyle ortaya konulacaktır. Bu çalışmayla sinema, siyaset, reklam gibi hayatın her alanında tatbik edilebilen göstergebilimin bir edebî esere de uygulanarak metnin anlam yapısının ortaya konulabileceği gösterilecektir.
Histiocitosis de células de Langerhans de presentación en etapa neonatal: reporte de caso.
Authors: Pava Acosta Helen Dayan , Infante Ana María , Romero Marquez Yoliset Karina
Published: August 2023

Las histiocitosis son un grupo heterogéneo de enfermedades caracterizadas por la proliferación de células del sistema mononuclear fagocítico (monocitos, macrófagos, células dendríticas) en diferentes tejidos, poco frecuentes, de predominio en la edad pediátrica y con severidad variable. La Histiocitosis de células de Langerhans (HCL) es un proceso reactivo de etiología desconocida, con expresión clínica y pronóstico variable. Se presenta un recién nacido a término, sin antecedentes relevantes, quien al nacimiento presenta lesiones cutáneas generalizadas con compromiso palmoplantar y de cavidad oral. Inmunohistoquímica en biopsia de piel compatibles con HCL congénita. Se consideró enfermedad unisistémica, compromiso cutáneo y de sitio especial a nivel de paladar duro, recibió quimioterapia de acuerdo a Protocolo para el tratamiento de Histiocitosis de células de Langerhans del Instituto Nacional de Cancerología INC-2012, Vinblastina y Prednisolona, culminó primer ciclo con remisión completa de las lesiones cutáneas y a nivel de cavidad oral, sin extensión a otros órganos.
XXXIII Congreso Colombiano de Dermatología
Authors: Duque Romero Hernán Emilio
Published: August 2023

En el Congreso Nacional del 2018, realizado en Barranquilla, se nos encargó la misión del XXXIII Congreso de nuestra especialidad, en Pereira, para el 2020. Por motivos conocidos por todos, fue imperativo cancelar esa dicha fecha y realizarlo en el pasado mes de febrero. Se asumió ese reto con gran ahínco, y buscando el crecimiento y fortalecimiento de la dermatología colombiana.
Mulheres artistas e museus contemporâneos: Adriana Varejão no Museu Inhotim
Authors: Burgos Carolina de Castro , Perigo Katiucya
Published: August 2023

Cada vez mais as mulheres têm ocupado o espaço que é delas por direito dentro do circuito artístico. Isso se fez possível através da maior visibilidade dos temas ligados ao feminismo e das discussões de igualdade de gênero, cada vez mais necessárias. Esta pesquisa tem como objetivo demonstrar a presença feminina dentro do contexto dos museus contemporâneos, mais especificamente no Instituto de Arte Contemporânea do Inhotim, articulando reflexões sobre a presença das mulheres artistas nos museus, fazendo um breve estudo de caso e apresentando o feminismo decolonial frente ao panorama artístico. Como forma de embasamento para as análises e discussões, serão apresentados os conceitos de feminismo decolonial, decolonialismo, além de suas derivações através de autores que discutam os temas. Também será apresentado um parâmetro da arte feminina no contexto brasileiro e latino-americano. As metodologias utilizadas para este trabalho são as análises quantitativas e qualitativas, além de revisão bibliográfica e análise de um estudo de caso. Como estudo de caso é trazida a trajetória e as obras da artista Adriana Varejão dentro do complexo do Inhotim.
Mistério de Cristo e a Unificação dos Estudos Teológicos
Authors: Rito Honório
Published: August 2023

O objetivo principal dessas despretensiosas reflexões será tentar encontrar um centro de unidade para os estudos teológicos para assim encaminhar-nos à necessária unidade e integridade de formação dos estudantes de Teologia...
Caracterización del ensuciamiento y determinación de la calidad superficial óptima del vidrio sola expuesto a condiciones desérticas.
Authors:   , Carrasco Carrasco Claudia Andrea
Published: August 2023

En la última década, se ha observado un incremento a nivel mundial del consumo de energía debido principalmente al crecimiento de la población y al desarrollo urbano. Organizaciones internacionales y muchos países se han puesto como meta suplir esta demanda energética con el menor perjuicio ambiental posible. En este contexto, la energía solar ha concentrado la mayor atención, debido a la gran disponibilidad del recurso y la baja en los costos de los módulos fotovoltaicos. El principal problema que enfrenta la tecnología solar es la disminución de la eficiencia debido a factores externos como por ejemplo el ensuciamiento o “soiling”. Esto último dificulta la implementación de soluciones universales, haciendo necesario el estudio de sus respectivas características. Al igual que en el resto del mundo, Chile ha experimentado un gran desarrollo en la energía fotovoltaica. Sin embargo, el ensuciamiento sólo se ha abordado mediante algunas investigaciones que tratan la temática desde el punto de vista de sus efectos en la producción de energía, dejando de lado su estudio fenomenológico. En esta tesis se realiza un estudio del fenómeno del ensuciamiento en el desierto de Atacama. Inicialmente, se identificaron sitios de interés para realizar ensayos de campo con la finalidad de estudiar el desempeño de distintos tipos de vidrios protectores de módulos solares y las características fisicoquí-micas del ensuciamiento depositado en condi-ciones reales. Paralelamente, se registraron variables climáticas para evaluar su relación con las características del ensuciamiento en los sitios de interés. Posterior a esto se desarrolló una técnica de mitigación pasiva del ensucia-miento, la cual fue probada en condiciones de laboratorio, mostrando resultados prometedores. Los resultados mostraron que algunas características del ensuciamiento tienen una dependencia estacional, como por ejemplo la cantidad de polvo depositado. Adicionalmente se observó que existen periodos de tiempo donde las condiciones climáticas favorecen el depósito de polvo. La modificación superficial realizada a los vidrios protectores mediante decapado químico, mostró ser una técnica de mitigación eficaz y sencilla.
Construcción de una Celda de Combustible de Óxido Sólido para la Producción de Electricidad, Mediante el Uso y Optimización de la Perovskita La1-xSrx MnO3 (x = 0.2, 0.4) como Material Constituyente del Electrodo de Oxígeno.
Authors:   , Ramalinga Viswanathan Mangalaraja
Published: August 2023

La perovskita La1-xSrxMnO3 (x = 0.2, 0.4) (LSM) como material de electrodo de oxígeno para las celdas de combustible de óxido sólido (SOFC) se sintetizó por el método de combustión rápida en solución y se evaluaron sus características estructurales, morfológicas, mecánicas, eléctricas y ópticas mediante las herramientas de caracterización correspondientes. Los resultados de DRX mostraron la coexistencia de los polimorfos romboédricos R-3c y Pm-3m para la fase perovskita, corroboradas por imágenes HR-TEM, mostrando que el método de combustión rápida no permitió la formación pura de la fase La1-xSrxMnO3 (x = 0.2, 0.4) para las temperaturas de calcinación inferiores a 1400 y 1500°C respectivamente, debido a la rapidez de la síntesis de combustión 500°C durante 5 min. Se observó que el tamaño medio de los granos aumentaba con el tiempo de calcinación. El análisis EDS mostró una mejor concordancia de la estequiometría con la composición teórica. La porosidad aparente disminuyó con el aumento de la temperatura y el tiempo de calcinación debido a la coalescencia de los poros de sinterización. La dureza mejoró con el aumento del tiempo y la temperatura de calcinación y alcanzó un valor máximo de 5.7 GPa que coincidía simplemente con la densidad aparente. Se observó una tendencia similar en los estudios de resistividad en función de la temperatura y todas las muestras presentaron una resistividad baja de ~1.2 Ω-cm en el rango de temperaturas de 600-700°C. Para la muestra La0.6Sr0.4MnO3 la brecha de banda calculados oscilan entre 3.71 y 3.95 eV, lo que demuestra que el compuesto también puede ser un candidato adecuado para el desarrollo de dispositivos optoelectrónicos de alta frecuencia. A partir de estos fue construido una SOFC con diseño planar soportado sobre electrolito mediante la técnica de Screen Printing, tomando como electrolito el LSGM (La0.8Sr0.2Ga0.8Mg0.2O3) y electrodo de combustible LSCM (La0.75Sr0.25Cr0.5Mn0.5O3). La celda fue evaluada a 600 y 700 °C con 100 ml.min-1 de H2. La curva IV indicaba que el OCV aumentaba ligeramente al aumentar la temperatura, mientras que en circuito cerrado se obtenía una mayor potencia a temperaturas más elevadas. La potencia máxima alcanzada fue de 4.3 mW.cm-2 a 700°C, que correspondía al intervalo más bajo señalado en la bibliografía para este tipo de celdas de combustible. Los posibles factores que afectan al rendimiento son las perdidas por polarización debido al grosor de las capas de electrodos depositadas y la existencia de micro fisuras en el electrodo de combustible LSCM.
Analisis kelayakan investasi penambangan batubara di PT. Cipta Kridatama site PT. KIM, Kabupaten Bungo, Provinsi Jambi
Authors:   Universitas Sriwijaya, Ayun Qurratul , Juniah Restu ,   Program Studi Magister Teknik Pertambangan, Fakultas Teknik, Universitas Sriwijaya, Azwardi  ,   Program Studi Magister Teknik Pertambangan, Fakultas Teknik, Universitas Sriwijaya
Published: August 2023

Indonesia economic development cannot be separated from the role of natural resources, one of the natural resources that currently supports the Indonesian economy is coal. This research was conducted in order to see the prospects for coal mining activities at PT. Cipta Kridatama, site PT. Kuansing Inti Makmur (PT KIM), Bungo Regency, Jambi province through an analysis of management strategies in the form of investment feasibility. The research methodology used is descriptive qualitative in nature referring to quantitative studies, comparative studies (comparisons), and correlational studies. Data collection techniques are carried out by: field research, literature study and secondary data collection such as RKAB of the company. Based on field research, the data obtained included cropline roofs and M4 floor seam, coal strike and dip, overall highwall slope and outcrop area (section). The results of the investment feasibility study were obtained from coal resources based on a stripping ratio (SR) of 1:4.56. From the calculation results, the net present value (NPV) is greater than 0, which is 16,169,241,885, so it can be concluded that this project is considered economical and feasible to mine. The internal rate of return (IRR) is 19.807%, means that PT. Cipta Kridatama was able to return the invested capital with an increase in interest rates reaching 19.807%. Meanwhile, based on the payback period (PBP) calculation, it shows that the time needed for the investment capital to return is 5.6 years, this shows that the payback period is smaller than the project implementation period. The project ratio value (PI)>1 is 3.9537 which means the project is feasible to operate. The calculation has adjusted the discount rate, so the present value (PV) of coal mining PT. Cipta Kridatama of IDR 17,981,921,072.4 according to the discount level. Benefit cost ratio (BCR) value from PT. Cipta Kridatama is 24.66, which means the project is feasible to operate with the profits from the project are greater than the expenses so that the project is acceptable or feasible to continue.