bluuebunny/crossref_metadata_2025_split huggingface dataset:
Potential anti-ageing effects of probiotic-derived conditioned media on human skin cells
Authors: Hong Yoo Kyung , An Sungkwan , Lee Yun Hee , Yang Seung Ah , Yoon Yoo Kyung , Lee Joonil , Lee Gwasoo , Chung Myung Jun , Bae Seunghee 
Published: April 2022

Abstract
In this study, the protective functions of bacteria-free conditioned media from Bifidobacterium and Lactobacillus species against ultraviolet radiation-induced skin ageing and associated cellular damage were investigated. The effects of ultraviolet radiation-induced reactive oxygen species production were suppressed by all conditioned media; particularly, the loss of cell viability and downregulation of collagen gene expression were significantly reversed by the conditioned media from B. longum and B. lactis. Further exa mination of potential anti-pigmentation effects revealed that the B. lactis-derived conditioned media significantly inhibited tyrosinase activity and alpha-melanocyte-stimulating hormone-induced melanin production in human epidermal melanocytes. Further, the conditioned media suppressed the phosphorylation of extracellular signal- related kinase, which functions as an upstream regulator of melanogenesis. Therefore, B. lactis-derived conditioned media can potentially protect against cellular damage involved in skin-ageing processes.
Adoption of renewable energy innovations in the Portuguese rural tourist accommodation sector
Authors: Silva Luís 
Published: April 2022

Abstract
The imperative of decarbonisation represents a great challenge for the tourist accommodation sector. This article examines the adoption of renewable energy innovations in the tourist accommodation sector of Portugal. The analysis focuses on one of the most known tourist accommodation products in the Portuguese countryside: Tourism in Rural Areas (TER). Drawing from two complementary e-mail-based surveys conducted with TER owners/managers, the results of the study show that there is a substantial gap between their positive perceptions of renewables and levels of renewable energy innovations adoption. The reasons pinpointed relate to unfavourable market factors and to institutional, legal, regulatory, or administrative hurdles. In addition, except for geographical location, the characteristics of the units and respondents had no significant influence on adoption.
Are African Stock Markets Efficient? A Comparative Analysis Between Six African Markets, the UK, Japan and the USA in the Period of the Pandemic
Authors: Dias Rui , Pereira João M. , Carvalho Luísa Cagica 
Published: April 2022

Abstract
The aim of this study is to test and compare the efficient market hypothesis, in its weak form, on the stock markets of Botswana, Egypt, Kenya, Morocco, Nigeria, South Africa, Japan, the UK and the USA from 2 September 2019 to 2 September 2020. This study is based on the following research question: has the global pandemic (COVID-19) reduced the efficiency – in its weak form – of African financial markets compared to the mature markets of the UK, Japan and the USA? The results sustain the evidence that the random walk hypothesis is not supported by the financial markets analysed in the period of the global pandemic. The variance ratio values are lower than the unit, which implies that the returns are self-correlated over time. A reversion to the average is also observed, with no differences identified between mature and emerging financial markets. In corroboration, the Detrended Fluctuation Analysis (DFA) exponents show that the financial markets present signs of (in)efficiency in its weak form, thus showing persistence in the yields. This therefore implies the existence of long memories validating the results of the variance using the Wright’s Rank and Signs Test (2000), which prove the rejection of the random walk hypothesis.
Performance Evaluation of BB-QZSI-Based DSTATCOMUnder Dynamic Load Condition
Authors: Mangaraj Mrutyunjaya , Sabat Jogeswara , Barisal Ajit Kumar , Patra Anil Kumar , Chahattaray Ashok Kumar 
Published: April 2022

Abstract
This paper presents the shunt compensation performance of quasi-Z-source inverter (QZSI) and back to back connected QZSIs (BB-QZSI) to address the power quality (PQ) issues in the three-phase three-wire power utility network (PUN). Generally, these PQ issues are poor voltage regulation, low power factor (PF), source current distortion, unbalanced voltage, etc. The proposed BBQZSI-based distribution static compensator (DSTATCOM) consists of two QZSIs with a common dc-link capacitor. Because the QZSI could achieve buck/boost conversion as well as DC to AC inversion in a single-stage and the back to back configuration decreases the system down time cost (if a fault occurs in one QZSI the other can continue the shunt compensation). Particularly, icos ϕ control algorithmcontrol algorithm is implemented to generate proper switching pulses for the switches of DSTATCOM. The effectiveness of the BB-QZSI is verified through simulation studies over QZSI using MATLAB/Simulink software satisfying the recommended grid code.
A New Approach for Determining the Curvature Ductility of Reinforced Concrete Beams
Authors: Foroughi Saeid , Yuksel S. Bahadir 
Published: April 2022

Abstract
This paper presents a numerical parametric study of the moment-curvature and curvature ductility of doubly-reinforced beams with different parameters. The effects of the strength of the concrete and the amount of the reinforcement, including the tensile and compression reinforcement on the complete moment-curvature behavior and the curvature ductility factor of the beam sections, have been studied. A new predictive formula for the ductility factor of beam sections that considers the different parameters has been developed. In a continuation of the study, the flexural ductility of beams designed with different parameters according to the ductility factor proposed by different researchers was investigated. Based on the results of the numerical analysis, the proposed predictions for the curvature ductility factor were verified by comparisons with other predictive formulas. The proposed formula offers fairly accurate and consistent predictions for the curvature ductility factor of beam sections. It is shown that the concrete’s compression strength and the amount of reinforcing steel, including the compression reinforcement ratios, have an effect on the curvature ductility factor of beam sections.
The Impact of Climate Change on Stochastic Variations of the Hydrology of the Flow of the Indus River
Authors: Yonus Muhammad , Hassan Syed Ahmad 
Published: April 2022

Abstract
Pakistan’s agricultural economy is reliant on the Indus River’s irrigation system, which is fed by the water coming from the great Himalayas-Karakoram Glacier Mountains. Because of hilly terrain areas, the climatic variations have an intense effect on the river flow, especially during the winter and monsoon months. Consequently, significant variations, which are observed annually, result in flooding situations in the monsoon months and reduced flows in the winter season. Thousands of people have lost their lives and massive property destruction has taken place due to disastrous floods that occurred during 2010 and 2016. Past studies have focused on proper water resources and the management of extreme events such as floods and droughts; however, modelling and forecasting based on the various climatic factors and stochastic variations are rare. This paper attempts to forecast Indus River flows using multiple linear regression (MLR), the stochastic time series, the seasonal autoregressive integrated moving average (SARIMA), and its reduced heteroscedasticity model, i.e., SARIMA-GARCH (generalized autoregressive conditional heteroscedasticity) methods at the Kalabagh station. The results show that MLR is best over the short-term; SARIMA is better over the long-term, and SARIMA-GARCH may be superior for a very long-term forecast.
Effecting the Rheological Properties of Composites for 3D Printing Technology in Construction
Authors: Uhlík Adam , Buch Mário , Unčík Stanislav 
Published: April 2022

Abstract
The article deals with the factors that lead to the beginnings of the solidification and hardening of materials used in 3D home printing technology in construction. At the beginning, the composition of the materials as well as their essential fresh and hardened properties and the performance assumptions of such a mixture are described. Subsequently, the article discusses the main aspects of the rheology and hydration of cement composites and the use of additives such as superplasticizers, viscosity modifiers, and acceleration and retardation additives, which directly affect the onset of the setting of such materials and the strength of the resulting mixtures. Finally, we describe the printing and curing process of the extruded material, which is divided into 4 main phases from the pumping and extrusion of the material through the initial deposition of layers to a sufficient increase in strength in the required time.
Numerical Solution of Linear Fractional Differential Equation with Delay Through Finite Difference Method
Authors: Hameed Auras K. , Mustafa Muna M. 
Published: April 2022

This article addresses a new numerical method to find a numerical solution of the linear delay differential equation of fractional order , the fractional derivatives described in the Caputo sense. The new approach is to approximating second and third derivatives. A backward finite difference method is used. Besides, the composite Trapezoidal rule is used in the Caputo definition to match the integral term. The accuracy and convergence of the prescribed technique are explained. The results are shown through numerical examples.
STUDI TINGKAT PREFERENSI PANELIS TERHADAP KARAKTERISTIK SENSORI SELAI KOLANG KALING (Arenga Pinnata Fruits)
Authors: Desnita Desnita , Yusmaita Eka , Iswendi Iswendi , Iryani Iryani 
Published: April 2022

Selai buah kolang kaling (Arenga Pinnata fruits jam) berperilaku sebagai fluida pseudoplastik yang memiliki tegangan permukaan bersifat koloid. Viskositas selai ini meningkat dengan diberikan perlakuan penambahan konsentrasi gula dan tingkat keasaman. Penerimaan keseluruhan panelis tertinggi untuk selai yang dibuat dengan gula 40%, jeruk nipis 0,2% dan garam 0,2% dari berat bubur kolang kaling yang dilumatkan. Uji kesukaan ragam selai buah kolang kaling dilakukan kepada 20 panelis tidak terlatih. Studi tingkat preferensi panelis untuk karakteristik sensorik dianalisis dengan model Rasch menggunakan aplikasi facets. Selai yang paling disukai dari karakteristik sensori aroma, warna, rasa, dan tingkat kemanisan adalah selai Nagaling (Naga kolang kaling). Sedangkan dari segi tekstur selai yang paling disukai adalah selai Nasling (Nenas Kolang Kaling). Hasil penelitian menunjukkan bahwa exact agreement diperoleh sebesar 58,5%, nilai ini mendekati hasil analisis expected agreements yang diperoleh hasil sebesar 59,3%. Artinya analisis menunjukkan kesesuaian (fit) antara model dengan estimasinya.
Kata kunci: preferensi panelis, selai, kolang kaling, karakteristik sensori, koloid
ABSTRACT
Arenga Pinnata Fruits jam behaved as pseudoplastic fluid exhibiting yield stress. Viscosity of this jam increased with sugar concentration and acidity. The overall acceptability was rated highest for the jam prepared with 40% sugar, 0,2 % lime drops and 0,2 % salts. The preference test for the diversification of Arenga Pinnata fruits jam was conducted on 20 untrained panelists. Panelists’ preferences level study for sensory characteristics was analyzed by Rasch model using the facets application. The most preferred jam from the sensory characteristics of smell, color, taste, level of sweetness is Nagaling jam. In other hands the terms of texture the most preferred jam is Nasling jam. The results show that exact agreements obtained are 58.5%, this value is close to the analysis of the expected agreements which obtained the results of 59,3%. It is means the analysis shows fit with estimated model.
Keywords: panelists preference, jam, arenga pinnata fruits, sensory characrteristic, koloid
HUNIAN BERWAWASAN PREFABRICATED DAN MODULAR BERBAHAN CARDBOARD-PLYWOOD (STUDI KASUS: WIKKEL HOUSE_FICTION FACTORY)
Authors: Hartanto Ignatius Soekarno 
Published: April 2022

AbstractCurrent dialogues about sustainable design are starting to reach the human living sector, starting from zero-waste production process to minimizing carbon footprint. One topic in particular is the need for residences. Government policies and economic advances can affect the values of land and property (in the residences scope; with land-building sites and without flats sites). Buildings with sites (land-building) are residences that are usually built on-site. There is a new point of view and technique that has been applied in developed countries such as Japan, America, Netherlands, and Australia, known as “prefabricated and modular”. When we assume the words “prefabricated” and “modular”, they are not quite common in Indonesia, especially regarding buildings that are worked on on-site. Recent scientific and technological advances regarding building structures and materials point towards the style of prefabricated and modular houses. Prefabricated and modular building, which leans towards sustainable design, can especially make us of cardboard plywood as materials.Keywords: sustainable design, residence, prefabricated, modular, cardboard plywood AbstrakHunian berwawasan prefabricated dan modular berbahan cardboard-plywood. Wacana mengenai sustainable design pada saat ini merambah ke berbagai sektor kehidupan manusia, mulai dari proses produksi yang diarahkan pada zero waste, hingga meminimalisir carbon footprint. Salah satunya terkait dengan pemenuhan kebutuhan mengenai tempat hidup atau hunian. Kemajuan perekonomian di suatu daerah dan kebijakan pemerintahan, memberikan pengaruh terhadap peningkatan nilai tanah dan properti (cakupan hunian; dengan tapak_tanah-bangunan dan tanpa tapak_rumah susun). Bangunan dengan tapak (tanah-bangunan) merupakan hunian yang biasanya dibangun secara on-site. Terdapat cara pandang dan teknik baru yang telah diterapkan terlebih dahulu pada negara maju, seperti diantaranya Jepang, Amerika, Belanda, dan Australia, dimana dikenal dengan ‘prefabricated and modular’. Ketika mengasumsikan kata prefabricated dan modular, kedua hal tersebut bukanlah hal umum yang dihadapi di Indonesia, khususnya untuk bangunan dengan tapak yang dikerjakan secara on-site. Kemajuan teknologi dan pengetahuan akan struktural serta bahan bangunan yang digunakan, turut mendukung pengerjaan prefabricated dan modular house. Pemanfaatan struktur dan bahan bangunan yang mengarah pada sustainable design (prefabricated dan modular) dengan memanfaatkan dan memberdayakan material cardboard dan plywood.Kata kunci: sustainable design, hunian, prefabricated, modular, cardboard-plywood
REPRESENTASI BUDAYA JAWA DAN ISLAM PADA PERMUKIMAN KAUMAN YOGYAKARTA
Authors: Rianingrum Cama Juli 
Published: April 2022

AbstractRepresentation is a mechanism to give meaning or meaning to what is described by an object. Themeaning of various patterns of life, culture, and character of a society behind the formation of an object,one of which is the form of a residential environment. A settlement that has a soul will have a long historythat connects the past, present and future in determining its character, an object that has a concept asa background that forms it. One of the settlements in Java that has a distinctive and unique characteris the Kauman Yogyakarta settlement which is located behind the Kraton Mosque. This settlement wasbuilt in the early 17th century on the orders of Sultan HB I. The problems in this study include theidentity of a settlement that represents Javanese and Islamic cultural values as a shared tolerance. Thisresearch is diachronic with the focus of research on finding various phenomena and facts of objects atthe present time by exploring the background of the appearance of artifacts in the Kauman settlement ofYogyakarta. The history of the past and then its development up to the present has shaped the physicalenvironment of the Kauman Yogyakarta settlement which represents the lives of its inhabitants as aJavanese Muslim community.Keywords: representation, settlement, Kauman Yogyakarta, Javanese Culture and Islam AbstrakRepresentasi merupakan sebuah mekanisme untuk memberikan arti atau makna terhadapapa yg digambarkan oleh sebuah benda. Pemaknaan tentang berbagai pola kehidupan,budaya, dan karakter suatu masyarakat yang melatarbelakangi terbentuknya sebuah objek,salah satunnya berupa wujud lingkungan permukiman. Permukiman yang memiliki jiwaakan memiliki sejarah panjang yang menghubungkan waktu dulu, sekarang dan masa yangakan datang dalam menentukan karakternya, sebuah objek yang memiliki konsep sebagailatar belakang yang membentuknya. Salah satu permukiman di Jawa yang berkarakter khasdan unik adalah permukiman Kauman Yogyakarta yang terletak di belakang Mesjid Kraton.Permukiman ini dibangun pada awal abad 17 atas perintah Sultan HB I. Permasalahan dalampenelitian ini meliputi identitas sebuah permukiman yang merepresentasikan nilai-nilaibudaya Jawa dan Islam sebagai sebuah toleransi yang disepakai bersama. Penelitian ini bersifatdiakronik dengan fokus penelitian pada penemuan ragam fenomena dan fakta objek padamasa sekarang dengan menggali latar belakang tampilnya artefak-artefak di permukimanKauman Yogyakarta. Sejarah masa lalu dan kemudian perkembangannya sampai denganmasa sekarang telah membentuk lingkungan fisik permukiman Kauman Yogyakarta yangmerepresentasikan kehidupan penghuninya sebagai masyarakat Jawa muslim.Kata Kunci : representasi, permukiman, Kauman Yogyakarta, Budaya Jawa dan Islam
Increased Knowledge of Pringwulung Youth Group, Sleman, on the Use of Solar Energy to Support Energy Security
Authors: Subarjo Abdul Haris , Mardwianta Benedictus , Ahmadi Nurfi 
Published: April 2022

The youth group RT10/ RW40 Pringwulung, Condong Catur, Depok, Sleman Yogyakarta Special Region is located east of SMKN 2 Depok, Sleman. This youth group formed a semi-autonomous activity centre under the youth organization which aims to provide knowledge to children in RT 10 about natural science. To implement the objectives, the workshop collaborated with several partners as resource persons for the activity. Some of the partners included lecturers and student associations around the location. The educational background of the youth groups varies from high school to tertiary education. The Adisutjipto College of Technology through its lecturers attempted to increase the knowledge of youth group members through a community-service partnership program on alternative energy, especially solar energy which has the potential to support energy security. It is hoped that through this activity the youth groups would be able to increase their knowledge. This community-service activity used the presentation method and to check the knowledge of youth group members, tests or questions and answers were provided with both at the beginning of the activity and the end of the activity. In addition, a small group discussion (SGD) was also conducted so that the participants could discuss the presentation material and improve the understanding of the material. In this community service activity, there was an increase in participants' knowledge, and indicators of improvement were shown from the results of the small group discussion, pre-test, and post-test sessions. The average percentage of increase of their knowledge from the pre-test and posttest results was 36%.
Empowering the Youths through the Skilled Youth Program III as Citi Indonesia's Corporate Social Responsibility Activity
Authors: Faqihantara Insan , Manoby Worry Mambusy 
Published: April 2022

Decent Work and Economic Growth represent one of the goals of Sustainable Development Goals. The Government of Indonesia through the National Secretariat for Sustainable Development Goals has continued to launch national actions by building multi-stakeholder partnerships to encourage the achievement of these goals. Citi Indonesia, together with Indonesia Business Links, initiated a youth development and empowerment program in the area of Bekasi City, Bekasi Regency, Karawang Regency, Purwakarta Regency, and Bandung Regency. The collaboration was a Citi Indonesia Corporate Social Responsibility activity focusing on capacity building, opening job opportunities, encouraging entrepreneurship, and creating a conducive environment. Increased competence in human resources is needed especially in the current 4.0 industrial revolution era. The shift of human labour into machines with automation and the digital economy requires workers who have the intermediate ability. This happens because much low-skilled human labour has been replaced by machines. The program aimed to prepare young people to be ready to work and ready for entrepreneurship. This program was designed as a series of activities with implementation methods in the form of focus group discussions, outreach, in-class training, seminars, counselling, and field practice. The results showed an increase in the knowledge and skills of the training participants so that it is hoped they will have a greater opportunity to be employed or to become entrepreneurs.
Assisting the Production Process of Kefir Milk Soap in the Women's Livestock Group, Blender Village, Kebon Pedes, Bogor
Authors: Wulandari Aprilla Ayu , Pradana Dhigna Luthfiyani Citra , Anisah Anisah 
Published: April 2022

This community-empowerment activity was conducted in Blender Village, a cattle rancher village. The community makes a living from raising cattle and selling cow milk. The cow milk is only sold in the surrounding area, and therefore is insufficient to sustain the livelihood of the villagers who are low in economic status. The aim of this community-empowerment activity in the production process of Kefir Milk Soap in the Blender Women's Livestock Group (WLG) was to help the Blender village community able to produce kefir soap, which can later give them additional income. Kefir soap is a kind of soap made from high-quality pure cow milk that is fermented beforehand in its process. Fermentation is done by mixing the milk with kefir seeds and leave it alone for 2-4 days until two parts of viscosity separation of fermented milk are formed. The thick part is selected and mixed with other ingredients (using the hot heating/cooking) method or cold method). Next, it is put into soap moulds and is left for 1-2 weeks before being used. The community-empowerment activity helped the WLG in producing kefir soap and it is hoped that they can train other residents. By being able to make kefir soap, it is hoped that the residents of Blender Village can have additional income and improve their livelihood.
Socialization of Free Legal Assistance and Training on Procuration Letter Writing for Citizens of Tanjungsari, Bogor
Authors: Suherman Suherman , Suprima Suprima 
Published: April 2022

Everyone should have the same opportunity to access law and justice. Legal aid is a kind of legal service provided by legal aid providers free of charge to legal aid recipients. This free legal aid is very helpful for those who are affected by legal problems, especially for the poor. This is because many poor people are confronted with legal problems, including the Tanjungsari people who are not aware of the availability of free legal aid. To help underprivileged members of society aware of this free legal aid, it is necessary to have community service aimed at making people understand the benefits of free legal assistance provided by the Government. The method used was an interactive group discussion. As supporting data, the questionnaire was also administered to obtain an overview of the experiences and opinions of citizens related to citizens' understanding of the material and training. The results of the activities in this legal aid assistance showed that the residents felt the benefits of helping them resolve their cases and knowing how to protect their legal rights. It was concluded that such counselling was needed by the residents of Tanjungsari since it received a positive response from the residents who attended the session.