bluuebunny/crossref_metadata_2025 huggingface dataset:
Sosialisasi Keamanan Pangan bagi Pelaku Usaha di Desa Wates, Kecamatan Sumbergempol, Kabupaten Tulungagung
Authors: Eni Widhajati  , Desi Rahmawati  , Nurani  , Marlena
Published: July 2024

Dengan adanya Pengetahuan Kesehatan & Keamanan Pangan bagi Masyarakat utamanya masyarakat Desa Wates diharapkan akan mampu menciptakan suatu produk yang aman, sehat dan higienis yang tidak bertentangan dengan agama, keyakinan dan budaya Masyarakat. Makanan yang aman, sehat dan higienis juga dapat mencegah cemaran biologis dan kimia yang dapat membahayakan kesehatan manusia. Beberapa cemaran yang terdapat pada makanan yang sering kurang diperhatikan oleh pelaku usaha Ketika memproduksi makanan minuman antara lain :1. Cemaran Biologi. 2.Cemaran Kimia. 3.Cemaran Fisik pecahan gelas atau kaca. Selain itu kita juga harus memperhatikan masalah-masalah yang timbul  keamanan pangan juga harus diperhatikan seperti : 1. Fasilitas Pengolahan yang belum memenuhi syarat. 2. Keadaan sanitasi tempat pengolahan makanan. 3. Pengetahuan Pengolah/penjamah pangan masih rendah.  Maka dengan memperhatikan maslaha-masalah yang timbul maka kita akan bisa menghindari adanya resiko keamanan pangan yaitu dengan menjaga potensi kemungkinan adanya kontaminasi bahaya mikrobiologi, kimia dan fisik.
Discrete Event Simulation untuk Analisis Pelayanan Bisnis Kuliner (Studi Kasus : Gacoan Merr)
Authors: Shofiudin Muhammad , Nur Aini Salsabilla Annafi’u , Ihsan Muhammad Sakhil , Wibowo Raya Akbar Tiar , Rolliawati Dwi
Published: July 2024

A queue is a group of people or goods in a line waiting to be served. It can occur when the number of visitors is greater than the number of serving resources. One of these queuing phenomena can be found at one of the fast food outlets, namely Gacoan Merr Surabaya. This study aims to identify and analyze the factors that affect queues and propose a more efficient strategy to solve queuing problems at Gacoan Merr Surabaya. The simulation model used is a discrete-event simulation model. The method in this study has stages that include problem analysis, literature study, observation, system modeling, and proposed solutions. The variables used in the research object include the time interval of arrival, the number of customers, the total number of servers in the ordering service process, and the total number of servers in the food manufacturing process, for a total of eight people. From the results of system modeling, it is found that the use of eight servers in the product processing phase can still be said to be less effective where the food distribution time also takes longer. Therefore, changes are needed in the product or food manufacturing phase by adding the number of servers used to process orders. The increase in the number of servers shows a decrease in the number of order queues in the product processing phase, and the food distribution time becomes faster.
Sistem Informasi Pencarian Rute Terpendek Pariwisata di Kabupaten Ende Nusa Tenggara Timur Menggunakan Algoritma Dijkstra
Authors: Ufiah Fitriah Indrianingsih , Bata Emanuel Safirman
Published: July 2024

The Ende Regency on Flores Island, East Nusa Tenggara Province, offers various attractive tourist destinations with its natural charm and cultural richness. However, visitors to the Ende Regency face the challenge of insufficient information regarding the shortest and most efficient routes to their desired tourist spots. To address this issue, a tourism route search information system is developed for the Ende Regency using the Dijkstra algorithm-based website. The Dijkstra algorithm is employed to find the shortest route between two points in a weighted graph.Utilizing a website as the platform for this system enables easy and flexible access through various devices such as laptops, computers, and smartphones, facilitating users in utilizing the system anytime and anywhere. It is anticipated that this system will assist tourists in navigating to tourist destinations in the Ende Regency more easily and efficiently.
18F-FDG PET/CT for the diagnosis and evaluation of antibiotic response in patients with left ventricular assistive device infection: A case report
Authors: Di Lijuan , Zhao Guangyu , Li Shanshi , Zheng Bo , Fan Yan
Published: July 2024

The left ventricular assistive device (LVAD) is critical for end-stage heart failure patients. Centrifugal flow LVAD recipients have a 4-year survival rate of nearly 60%, with infection occurring in over 50% of patients within 2 years. Herein, we report a case of LVAD infection in a 60-year-old man. The patient presented with fever after 49 days following LVAD implantation. Culture of both blood and areas around the outflow cannula indicated an infection with Enterobacter cloacae and Staphylococcus aureus. After sequential treatment with meropenem and daptomycin, as well as abdominal incisional debridement, the patient’s symptoms of fever disappeared, but the inflammatory markers, such as the erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) level, remained abnormal. Five 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) scans were performed to evaluate the infection. PET/CT revealed infected lesions around the lower segment of the outflow cannula with high FDG uptake. After continuous oral antibiotic treatment for more than 1 year, the infected areas with high FDG uptake around the outflow cannula gradually declined and eventually disappeared, consistent with the noted changes in both ESR and CRP levels in the serum. Multiple continuous 18F-FDG PET/CT scans can distinguish high FDG uptake areas of infection from sterile inflammatory areas, assisting in the accurate diagnosis of infection and evaluation of antibiotic treatment after LVAD implantation.
Spatiotemporal delivery of BMP-2 and FGF-18 in 3D-bioprinted tri-phasic osteochondral scaffolds enhanced compartmentalized osteogenic and chondrogenic differentiation of mesenchymal stem cells isolated from rats with varied organizational morphologies
Authors: Su Weiwei , Li Shiyu , Yin Panjing , Zheng Weihan , Wang Ling , Lin Zhuosheng , Li Ziyue , Yan Zi , Wu Yaobin , Wang Chong , Huang Wenhua
Published: July 2024

Replicating the heterogeneous structure and promoting compartmentalized osteogenesis/chondrogenesis are critical considerations in designing scaffolds for osteochondral tissue regeneration. However, desirable osteochondral regeneration cannot be achieved mainly due to the absence of effective delivery strategies for growth factors (GFs) and the insufficiency of desirable organizational morphologies for seed cells. Herein, we developed a tri-phasic osteochondral scaffold consisting of bone morphogenetic protein-2 (BMP-2)-loaded subchondral layer, fibroblast growth factor-18 (FGF-18)-loaded cartilage layer, and an interface layer that acted as a barrier to reduce the mutual interference of GFs, via cryogenic 3D bioprinting. BMP-2 could exert osteogenic effects for 14 days, and FGF-18 could exert chondrogenic effects for 21 days, demonstrating the time-controlled release function of BMP-2 and FGF-18. By further seeding discrete rat bone marrow mesenchymal stem cells (rBMSCs) and rBMSC microspheres, respectively, onto the subchondral layer and cartilage layer, the engineered cell-laden osteochondral tissue was constructed. The spatiotemporal release of BMP-2 and FGF-18 in the subchondral layer and cartilage layer promoted the osteogenic differentiation of discrete rBMSCs and chondrogenic differentiation of rBMSC microspheres in the subchondral layer and cartilage layer, respectively. In summary, by seeding rBMSCs with varied organizational morphologies in 3D-printed osteochondral scaffolds with a spatiotemporally controlled strategy, engineered osteochondral tissue with compartmentalized osteogenic/chondrogenic differentiation potent can be formed, displaying a facile and promising way to achieve desirable osteochondral tissue regeneration.
Health-related challenges faced by men who had sex with other men amid the COVID-19 pandemic in the context of sexualized drug use (chemsex): A literature review
Authors: Sarnkhaowkhom Chawapon , Madican Kobkul , Pankam Athichai , Pieter Willemse Martin
Published: July 2024

The COVID-19 pandemic has had widespread effects, impacting various aspects of human life, including sexual behaviors and substance use activities. This article aims to review and synthesize findings from existing published and unpublished research regarding health-related issues related to sexualized drug use (chemsex) among men who had sex with men (MSM) during the COVID-19 pandemic. The information was gathered from various databases, and 21 articles were included in this review. The results focused on the following seven health-related aspects: (i) Trends in chemsex practices among MSM during the pandemic; (ii) sexual behaviors and drug usage issues among MSM during the pandemic; (iii) mental and psychological health issues among MSM participating in chemsex during the pandemic; (iv) challenges and obstacles regarding health-care service access for MSM during the pandemic; (v) health disparity issues among MSM during the pandemic; (vi) digital health technology offering health care to MSM during the pandemic; and (vii) health-care interventions related to MSM engaging in chemsex during the pandemic. During the pandemic, targeted interventions were required that not only focused on mitigating physical health risks but also on addressing the mental health and socioeconomic challenges faced by MSM participating in chemsex. Moreover, digital health technologies and telemedicine offered promising avenues to provide necessary services remotely during the COVID-19.
Temporal and spatial characteristics of carbon storage and its response to land-use change in Chengdu, China
Authors: Cai Yuxin , Wang Changliu , Zhou Yuan , Deng Dejie
Published: July 2024

The accurate monitoring of the dynamic relationship between land use and carbon storage can provide a scientific basis for the government to formulate carbon emission reduction policies and promote the green development of cities, achieving a win–win situation for both ecology and the economy. As a national central city in southwest China, Chengdu has experienced rapid land-use changes in the past decade due to the implementation of development strategies such as urban-rural integration and the construction of a “Park City.” To explore the spatial and temporal distribution characteristics of carbon storage in Chengdu during this period, three representative years (2010, 2015, and 2020) were selected to estimate the changes in carbon storage using the Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) model. From 2010 to 2020, the land-use changes in Chengdu primarily manifested in the mutual transformation between cultivated land, forest land, and construction land. The conversion between the high-carbon-density-land-use type and the low-carbon-density-land-use type was an important driving factor for the change in carbon storage in Chengdu, and it was also the main reason for the overall reduction of carbon storage in the city. The carbon source areas of Chengdu demonstrated an aggregated spatial pattern, with the northern and southern parts of the city being the main carbon source areas. In contrast, the carbon sink areas were mainly distributed in the western and eastern parts, as well as the ecological park around the expressway in Chengdu. This distribution was mainly due to increased efforts to restore inefficiently used cultivated land back to forest and grassland. The proposal of the “Park City” strategy has promoted the construction of green infrastructure in Chengdu and has effectively increased urban carbon sinks.
Evaluation of Innovation Capacity and its Impact on Sales in Ecuador's Manufacturing Sector: An Econometric Analysis
Authors: Morales Tania , Salazar Nicolay , Argothy Anderson
Published: July 2024

The primary aim of this study is to evaluate the capacity for innovation and its impact on sales in manufacturing companies in Ecuador. This study used data from the Survey of Science, Technology, and Innovation Activities in Ecuador. Correlation and multiple linear regression analyses were also performed. These results align with economic theories and indicate a positive association between certain innovation and sales indicators. Insufficient R&D investment negatively affects the innovation status of companies of various sizes in Ecuador. This study suggests that businesses ought to foster a culture of innovation, facilitate collaboration and strategic partnerships, and increase their financial resources for innovation and sales to achieve growth, survival, and sustainability in the current market.
 
Received: 20 March 2024 / Accepted: 19 June 2024 / Published: 02 July 2024
Assessing the Influence of Sustainable Tourism Practices on Conservation and Socio-Economic Development in Kosovo's Protected Areas
Authors: Vizdik Thaqi Nora , Thaqi Agim
Published: July 2024

This study investigates the impact of sustainable tourism on the conservation of Kosovo's protected areas, offering insights into the synergy between tourism development and environmental preservation. Through a survey of 114 protected areas and an analysis of managers' responses to 15 questions, the research evaluates the effects of sustainable practices on local employment, biodiversity, environmental integrity, and the preservation of cultural heritage. Utilizing linear regression and correlation analysis, the findings reveal that sustainable tourism practices significantly contribute to local employment growth, biodiversity conservation, environmental protection, and the maintenance of cultural heritage. These outcomes illustrate that sustainable tourism not only upholds the ecological and social fabric of protected areas but also promotes economic advancement. The study highlights the essential role of sustainable practices in protected areas, emphasizing their importance in ensuring the long-term preservation of these regions while supporting local economies and cultural heritage. The research underscores the necessity of integrating sustainable tourism within protected areas to achieve a balanced approach to conservation and development.
 
Received: 1 April 2024 / Accepted: 16 July 2024 / Published: 02 July 2024
Identification of Potato Plant Pests Using the Convolutional Neural Network VGG16 Method
Authors: Hadianti Sri , Aziz Faruq , Nur Sulistyowati Daning , Riana Dwiza , Saputra Ridwan , Kurniawantoro
Published: July 2024

Pests are one of the main challenges in potato cultivation that can significantly reduce crop yields. Therefore, quick and accurate pest identification is crucial for effective pest control. This research aims to develop a pest identification system for potato plants using the Convolutional Neural Network (CNN) method with the VGG16 architecture. The dataset used consists of images of pests commonly found on potato plants. After the labeling process, these images were used to train the CNN VGG16 model. The research results show that the CNN VGG16 method can identify types of pests with an accuracy rate of 73%. The results serve as a reference to help farmers and agricultural practitioners detect the presence of pests earlier and take the necessary actions to reduce crop losses.
EXPERT’S INSIGHTS
Veto Challenge in EU Decision-making
Authors: Benisheva Bisserka
Published: July 2024

Complex geopolitical developments demonstrate the need for the European Union to reform internally and enlarge externally. Both processes are interlinked and relate to making the Union an active global player. Most European policies are decided by large consensus, which effectively means qualified majority. There are several areas considered sensitive for Member States and subjected to unanimity in decision making. Historically deepening and widening of the Union have been done by revisions of the Treaty with gradual transfer of policy areas from unanimity to qualified majority. The article explores present day challenges on further transformations for the next political cycle to rebalance the decision-making power between Member States and EU institutions.
Perencanaan Lanskap Dengan Pendekatan Community Based Tourismpada Kawasan Dermaga Ketapang
Authors: Wihandono Naafil ,   Institut Teknologi Sumatera, Pratiwi Rian Adetiya , Hutriani Ina Winiastuti ,   Institut Teknologi Sumatera,   Institut Teknologi Sumatera
Published: July 2024

Kawasan Dermaga Ketapang Dusun Ketapang Barat dengan luas wilayah 10 Ha dan jumlah penduduk 438 jiwa merupakan salah satu kawasan dengan potensi pariwisata yang signifikan. Kawasan ini menjadi tempat transit yang penting bagi wisatawan yang ingin menuju Pulau Pahawang dan pulau wisata lainnya di Kabupaten Pesawaran. Dusun Ketapang Barat memiliki potensi di bidang pariwisata berbasis masyarkat yaitu mayoritas warganya bekerja di bidang pariwisata dan terdapat beberapa komunitas lokal yang berperan aktif di bidang pariwisata,sehingga Pemerintah Kabupaten Pesawaran menjadikan kawasan ini sebagai kawasan wisata berbasis pantai, kuliner, dan ekonomi kreatif. Namun,potensi-potensi tersebut juga dihadapkan dengan beberapa permasalahan, seperti infrastruktur yang kurang memadai, tata ruang yang kurang teratur, dan kurangnya ciri khas Dusun Ketapang Barat sebagai kawasan pariwisata. Untuk mengatasi permasalahan ini, dibutuhkan perencanaan lanskap dengan pendekatan pariwisata berbasis masyarakat (CBT). Adapun tujuan penelitian ini yaitu mengidentifikasi potensi, permasalahan, dan menyusun perencanaan lanskap dengan pendekatan pariwisata berbasis masyarakat pada kawasan Dermaga Ketapang. Penelitian menggunakan metode yang dikembangkan oleh Gold, yang terdiri dari tahapan persiapan, inventarisasi, analisis, sintesis, prinsip perencanaan, dan hasil masterplan. Berdasarkan hasil identifikasi dan analisis potensi dan masalah yang ada di kawasan perencanaan, direkomendasikan 5 (lima) prinsip dasar perencanaan yang menjadi dasar perencanaan lanskap berbasis CBT. Kelima prinsip dasar tersebut meliputi perbaikan infrastruktur, pembuatan kawasan ekonomi berskala kecil, pengembangan kawasan eksistingdengan pendekatan CBT, pelatihan pariwisata masyarakat lokal, dan pengembangan produk ciri khas. Prinsip dasar tersebut dikembangkan menjadi beberapa rencana pengembangan yang menghasilkan masterplan dan visualisasi 3D dari perencanaan lanskap kawasan Dermaga Ketapang Dusun Ketapang Barat
Analisis Hunian Vertikal Dengan Konsep Arsitektur Modular Sebagai Solusi Keterbatasan Lahan Dikota Batam
Authors: Melati Putri ,   Universitas Internasional Batam, Pinassang Jeanny Laurens , Suwarlan Stivani Ayuning ,   Universitas Internasional Batam,   Universitas Internasional Batam
Published: July 2024

Seiring dengan berkembangnyapusat kotaBatam, ketersediaan lahan pemukiman semakin berkurang. Hal ini menyebabkan melonjaknya harga rumah dantanah. Selain itu, pertumbuhan penduduk perkotaan yang semakin meningkat juga menimbulkan tantangan dalam memenuhi kebutuhan akan perumahan. Salah satu solusi dari permasalahan tersebut adalah dengan pembangunan bangunan vertikal yang memberikan pilihan hunian vertikal yang dapat mengakomodasi kebutuhan warga kota. Bagi mereka yang ingin tinggal dekat dengan tempat kerja, fasilitas umum, institusi pendidikan, dan pusat kegiatan lainnya, hunian vertikal dapat menjadi pilihan yang praktis dan diperlukan.Penelitian ini menggunakan metode kualitatif dengan observasi dan studi literatur, yang dianalisis secara deskriptif untuk menghasilkan arah perspektif arsitektur modular mengenai hunianvertikal sebagai solusi keterbatasan lahan di kota Batam.Melalui penelitian ini diharapkan dapat memberikan solusi bagi pemerintah kota Batam terhadap keterbatasan lahan untuk hunian masyarakat khususnya para pelaku ekonomi (pekerja) yang terus bertambah tiap tahunnya. Hasil dari penelitian memberikan gambaran baik kepada pemerintah kota Batam maupun masyarakat dalam hal ini yaitu para pekerja, untuk membangun sebuah hunian yang layak dengan modul prefabrikasi didalam sebuah pabrik/workshop. Efisiensi dari segi material dan waktu serta biaya menjadi keunggulan dari metode ini, tetapi didalam perencanaanya tetap memperhatikan aspek kenyaman dan keberlanjutan
Analysis of Financial Feasibility of Shuttle Transport Within The Province (AJDP) Denpasar Buleleng Route (Case Study: Minibus Colt L-300 Adhi Transport)
Authors: Wedagama Dewa Ayu Trisna ,   Universitas Pendidikan Nasional, Kumara I Nyoman Indra ,   Universitas Pendidikan Nasional
Published: July 2024

One of the AJDP service providers in Bali is Adhi Transport which has 3 fleets on the Denpasar-Buleleng route. The aim of the research is to determine vehicle operating costs, income and analyze the level of financial feasibility of transportation operations. The data used in this research includes secondary data (company financial data) obtained through interviews and questionnaire surveys with agencies. The main indicators to pay attention to are NPV, BCR, and IRR. The results obtained are vehicle operating costs of Rp. 334,108,000/year, income Rp. 6223,100,000/year. The NPV value is IDR. 634,943,527 > 0, BCR 1.17 > 1, and IRR 42.99% > 16%. The conclusions obtained from the results of the investment analysis are financially feasible.
A Systemic Approach to the Determinants of Employability
Authors: Ouedraogo Sayouba
Published: July 2024

This paper identifies the economic, sociological, psychological, and managerial approaches to analyzing the determinants of employability, and their limitations, and then proposes an interdisciplinary approach and systemic framework. Through a theoretical analysis, we find that these determinants interact with the internal and external environment of the individual who is integrated within society; has upgradable human and social capital; has a psychological make-up; and lives in a constantly changing socioeconomic context. The complexity of societies, companies, and a globalized economic system induces the use of interdisciplinarity by considering instability, openness, creativity, ambiguity, and paradox. The operationalization of the systems approach is to analyze the internal factors of each subsystem, the interactions between subsystems, and the relationships between subsystems and their environments. Future investigations should seek to identify the empirical determinants of employability through a systemic approach.
Halal Label and Subjective Norm: Purchase Intention Through Attitude As An Intervening Variable
Authors: Kholil Masrukhan , Kuncoro Amin
Published: July 2024

The aim of the research is to test halal labels, subjective norms, attitudes towards purchasing intentions. The data used in this research are primary data and secondary data. Primary data was obtained from the results of questionnaires and secondary data was obtained from literature or journals and previous research. The number of samples in this study was 100 people. The research results show that the halal label, subjective norms improve attitudes. halal label, subjective norms increase purchase intention through attitudes as an intervention.
Systematic Review: Leadership Style in Maintaining Business Sustainability in the MSME Industry
Authors: Aristayudha A A Ngurah Bagus , Riana I Gede , Rahyuda Agoes Ganesha , Surya Ida Bagus Ketut
Published: July 2024

Leadership style is the way a leader chooses to direct or coordinate the work that will be given to his subordinates. The leadership style chosen by a leader depends on the goals of the organization or company, who is being led, and the type of business led by the leader. Systematic review using the Google Scholar database. Search results using the keyword leadership style in maintaining business continuity in the MSME industry" using the Google Scholar electronic data base. After carrying out an analysis based on a complete composition, namely 5 articles used in this article. The results of this research show that there are many types of leadership styles, but the choice of leadership style depends on the situation and conditions of the organization or business being led. The types of leadership styles include democratic leadership style, authoritarian leadership style and leadership styles that are appropriate to current conditions, namely transactional and transformational. MSMEs are a type of small business that also requires a leadership style that is appropriate to the type of business and the goals of the business to maintain the stability or sustainability of the business. Leadership style is a method or tactic used by a leader to direct and coordinate activities in an organization so that organizational goals are expected to be achieved.
The Influence of Digital Marketing on Consumer Purchase Decisions of Shopee Application Users
Authors: Rettobjaan Vitalia Fina Carla , Aristayudha AA Ngurah Bagus , Astitiani Ni Luh Putu Surya , Widnyani Ni Made
Published: July 2024

The development of e-commerce in Indonesia is increasing, slowly people are starting to abandon conventional shopping habits and switch to online shopping. E-commerce is used as a solution as a buying and selling medium that can save time and costs. Shopee is an e-commerce company that already has a name and is one of the big players in the business world. Purpose: The purpose of this research is to determine the influence of digital marketing on Shopee application users on purchasing decisions. This research is an analytical observational study with a cross sectional approach. The sample used in this research was 100 Bali International University students who were calculated using the Slovin formula. The sampling technique uses Consecutive Sampling. The data collection tool uses a questionnaire and the results are then analyzed using Path Analysis. Validity and reliability tests were carried out to ensure that the instruments used in this research had a high level of accuracy and consistency. Website, search engine marketing, web banner, social network and affiliate marketing variables have a significant influence on consumer purchasing decisions using the Shopee case study application at Bali International University with a total determination value of 0.761. Digital marketing is reaching as many consumers as possible in an efficient manner through various web-based media such as blogs, websites, emails, AdWords or social networks.
Description of Obesity Characteristics in Elderly with Walking Disturbance
Authors: Anggraeni Rina , Luthfiana Lulu , Jati Riani Pradara , Aeni Qurrotul , Nurwijayanti Andriyani Mustika
Published: July 2024

A person who has reached the age of 60 years and over will experience an aging process which is characterized by changes such as decreased memory, muscles that are no longer flexible, decreased hearing and vision function, and problems walking. Barriers to walking can cause limitations in moving independently using the feet in an environment to be disrupted because it can slow down something a person is doing. Barriers to walking in the elderly are characterized by several characteristics, including obesity. This study aims to determine the characteristics of obesity in elderly people with walking obstacles in Kendal Indonesia. The design of this research is descriptive qualitative. The research population was 45 elderly people using a total sampling technique. Data were collected using the Body Mass Index (BMI) calculations as an International standard. Body mass index (BMI) is the method of utilizing an adult's height and weight to broadly place them into underweight, normal weight, overweight and obese categories. BMI can be calculated using metric or imperial (US) units.The results of this study showed that thin body weight (6.7%), normal body weight (68.9%), fat body weight (13.3%), and obese body weight (11.1%). Obesity causes obstacles to walking.
Influence of Biphasic Calcium Phosphate Incorporation Into Alginate Matrices
Authors: Pahomi Alexandru , Bradu Ionela-Amalia , Neidoni Dorian-Gabriel , Ilia Gheorghe
Published: July 2024

Biphasic calcium phosphate (BCP), containing β-tricalcium phosphate and hydroxyapatite, was synthesized by co-precipitation method to obtain a biomimetic artificial bone-like composite using calcium nitrate tetrahydrate [Ca(NO3)∙4H2O] as calcium precursor and ammonium dihydrogen phosphate (NH4H2PO4) as phosphorous precursor, maintaining Ca/P ratio of 1.67. The synthesized biphasic calcium phosphate mixture was dispersed in a sodium alginate (Alg) matrix dissolved in distilled water and lyophilized. The chemical structure, possible interactions between components and morphology of the obtained powder and scaffolds were studied through Fourier transform infrared (FT- IR) spectroscopy, X-ray diffraction (XRD) thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) in order to observe the interactions between BCP and the polymer. The particle size of the powder was also analyzed using the dynamic light scattering (DLS) analysis. Calcined powder had a particle size of 1.8 �m. In addition to the low crystalline hydroxyapatite (HA), as the main phase in the dried samples, β-tricalcium phosphate (β-TCP) was formed after the thermal treatment of 1000˚C as shown by XRD and FT-IR. The obtained composite material presented a highly porous microstructure with interconnected layers where the BCP particles were well dispersed. The micro-structure of the scaffolds was influenced with the change in pore dimensions and rearrangement of the layers due to the incorporation of the BCP particles and by the treatment of the scaffolds with CaCl2.
Characterization of Some Functional Polymeric Composites in a Synergistic Regime of Protection at Electromagnetic Shielding and Electrostatic Transfer
Authors: Caramitu Alina Ruxandra , Ion Ioana , Marin Mihai , Bors Adriana Mariana , Ciobanu Romeo Cristian , Schreiner Cristina , Aradoaei Mihaela
Published: July 2024

The paper presents the characterization of 5 polymer composite materials with a poly-propylene (PP) matrix obtained with different (mass) concentrations of strontium ferrite (Fe12SrO19) reinforcement that have synergistic protective properties against electrostatic discharges (ESD) and electromagnetic impulses (EMI). These types of composites can be used to protect electronic equipment. To this purpose, suitable polymer composites were developed using SrFe12O19 type filler in two forms (powder and concentrate). The weight ratio of the PP/SrFe12O19 composites obtained by the extrusion process and injection from the melt is 75/25 and 70/30. The characterization of these composite materials consisted of carrying out some physico-chemical tests to determine the hydrostatic density and the resistance to the action of water, as well as FTIR, UV-Vis analyzes and dielectric, magnetic and functional tests to identify the simultaneous protection performance at electromagnetic shielding and electrostatic discharges, which can occur in the electro-technical, electronics and automotive industries. It is also found that all composite materials presented reflection shielding properties (SER) in the range: -71.5 dB...to -56.7 dB, indicating very low absorption shielding. The best performing material was the PP/SrFe12O19 powder composite with a weight ratio of 70/30. At the same time, EDS tests were also carried out on these materials. For these applications, the surface resistance Rs and the point-to-point resistance Rp were tested. Recommended composites for simultaneous EMI and sensitivity to electrostatic discharges (ESD) functionality, in order of their performance, are M2 (with 30% ferrite powder) and M1 (with 25% ferrite powder). M4 composite (with 30% ferrite powder concentrate) can also be used at the limit. Following the research carried out, the obtained results recommend the composite with promising simultaneous operations as M2 (with 30% ferrite powder). The element of originality consists of obtaining polymer composites with simultaneous properties of protection against electromagnetic impulses and electrostatic discharges.
A Novel Flying Robot Swarm Formation Technique Based on Adaptive Wireless Communication using MUSIC Algorithm
Authors: Khaldoon A. Omar , kamil N. Yasameen , A. Abbas Ahmed , Al Smadi Takialddin
Published: July 2024

This paper presents a novel technique to address the challenge of coordinating swarm flying robots in a leader-follower configuration. A combination of the Multi Signal Classification (MUSIC) estimation algorithm, based on a wireless MIMO array antenna, along with onboard robot control are used for precise route tracking of an individual robot. Employing an array antenna reduces energy consumption for followers in passive mode and reduces computational complexity when measuring the angles of leader angle interferences, which depends on the phase difference of the impinging signal on the antenna elements of the array. Additionally, the angles estimation and beamforming processes, utilizing MUSIC algorithm, form an inner loop that furnishes orientation angles in 3D (Azimuth and elevation angles) for both the leader and potential interference sources. The outer loop, contingent on the onboard controller and the robot's GPS system, enabling fine adjustments in angle and position relative to the leader's location. The simulation results illustrated the efficiency of the proposed technique in estimating the orientation angles of the leader and the interference sources. The technique robustness is confirmed through testing the performance on different trajectories. Where the follower perfectly generates a main radiation beam directed towards the leader, effectively mitigates interference signals from neighboring group leaders, and successfully tracks the leader path.
Improvement of the Sand Quality by Applying Microorganism-induced Calcium Carbonate Precipitation to Reduce Cement Usage
Authors: S. Kongtunjanphuk , S. Pianfuengfoo , P. Sukontasukkul
Published: July 2024

This research determines the Microbially Induced Calcium Carbonate Precipitation (MICP) process utilized by the bacteria found in Thailand. Many researchers typically use the high-efficiency MICP bacteria to precipitate calcium carbonate. However, it is only available in some countries, leading to a high import expense. Therefore, the methodology for using the bacteria capable of producing calcium carbonate in Thailand was investigated. The five pure bacteria strains are obtained from the Thailand Institute of Scientific and Technological Research (TISTR), i.e., Proteus mirabilis TISTR 100, Bacillus thuringiensis TISTR 126, Staphylococcus aureus TISTR 118, Bacillus sp. TISTR 658 and Bacillus megaterium TISTR 067. To screen urease production, the bacteria were spread on Christensen's Urea Agar (UA) slant surface via a colorimetric method. All bacteria strains can produce urease enzymes by observing the color changes in the UA. Berthelot's method was used to determine the urease activity. The result shows the bacteria's urease activity: 2389, 1989, 1589, 789, and 589 U/ml, respectively. These directly lead to calcium carbonate production: 3.430, 3.080, 2.590, 1.985, and 1.615 mg/ml, respectively. Despite the bacteria in this research having a low precipitation efficiency compared to the strain used in many research studies, they can improve sand stabilization in 7 days. Proteus mirabilis TISTR 100 was the most stable and effective strain for the MICP process in Thailand. Hence, this research reveals the ability of the local bacteria to bond with the sand particle. Briefly, the improvement of the MICP process in sand stabilization can be improved to reduce imported expenses. In addition, the MICP process can reduce the use of cement in sand stabilization work.
A Study on the Importance of Location Decision for Container Storage Warehouses using AHP
Authors: Yoon Sam Do , Oh Sae Joon ,   Korea Real Estate Society
Published: July 2024

The purpose of this study is to investigate the relative importance of determining factors of location decision regarding container storage warehouses, and thus, provide a method to resolve difficulties when selecting the location of small-sized container storage warehouses by verifying essential factors to consider in location decision. Few studies have examined container storage warehouses, hence, this study attempted to study the difference of location decision between logistics centers and container storage warehouses through Analytic Hierarchy Process (AHP).
Results showed that considering the conditions of the hinterland is the most important factor in location decision, followed by traffic accessibility, site conditions, operating entities, and ownership entities. In detail, the most important factor regarding the conditions of the hinterland was whether or not the area had few civil complaints; the most important factor for traffic accessibility was the proximity of infrastructure to the logistics industry; the most important factor regarding site conditions was land price competitiveness; the most important factor in operating entities was whether or not they were self-operated; and the most important factor regarding ownership entities was ownership type.
A Study on the Forecasting of Real Estate Market Using Algorithms
Authors: Kim Jin ,   Korea Real Estate Society
Published: July 2024

Technology using algorithms has an impact on various aspects of the real estate market, such as real estate market price prediction, investment recommendation, and rent setting. First, it was confirmed that by improving the accuracy of real estate price prediction, real estate market price prediction using AI algorithm can derive more accurate results through machine learning and deep learning technologies based on past data. In addition, it is the development of an investment recommendation system. The investment recommendation system using AI can promote efficient fund management by discovering promising investment opportunities in the real estate market and proposing them to investors. The next is the optimization of lease on a deposit basis, monthly rent, and rent setting. The rent setting model using AI technology can set the rent appropriately through negotiations between real estate owners and tenants in consideration of market trends, demand, and predictions by region. Finally, it is the automation and efficiency of the real estate transaction process system. Smart contracts and automation systems using AI can save money and time between transaction parties by simplifying and streamlining the real estate transaction process. However, problems with data security and privacy protection are emerging as new challenges. New security and privacy problems arise in dealing with personal information, transactions, and data, and appropriate responses to them are urgent.
Analyses of the Three Environmental Factors Affecting Apartment Prices: Focusing on Gyeongsangnamdo
Authors: Jo Yun-Jin , Park Jae-Wook , Lee Dong-Keun ,   Korea Real Estate Society
Published: July 2024

The purpose and significance of this study is to analyze the impact of complex environmental factors on apartment prices across the country based on actual transaction prices. For this, based on the actual transaction prices of apartments in four complexes within △△ district in ○○-si, Gyeongsangnam-do, which are all affected by three environmental factors: exposure to open spaces (neighborhood parks and natural mountainous areas), exposure to Nimby facility (livestock barn), and exposure to traffic noise. The influence of each factor was estimated through three-pair two-apartment correlation analysis and hedonic modeling. Three pairs of two apartments were selected for correlation analysis, and they have the same or similar physical factors such as exclusive use area, construction year, construction company, and orientation. However, the first pair of two apartments differs only in exposure to open space. The second pair of two apartments differs only in exposure to Nimby facilities. and the final pair of two apartments differs in simultaneous exposure to both open space and traffic noise. In addition, the actual transaction prices of 300 apartments in 4 complexes were investigated to estimate the impact of exposure to open space, to Nimby facility, and to traffic noise through a hedonic model. As a result of correlation analysis, the impact due to exposure to avoided facilities was -6.7%, the impact due to exposure to open space was +5.0%, and the impact due to noise exposure was -11.2%. From the results of the hedonic modelling, the impacts due to exposure to open space, Nimby facility and traffic noise were estimated to be 182,357 won/m 2 , -170,437 won/m 2 , and -195,141 won/m 2 , respectively. Although it was confirmed that traffic noise has the greatest impact on apartment prices, there is a limit in that the size of the analysis of the impact due to exposure to open space and exposure to nimby facilities was derived differently from correlation analysis and hedonic model analysis. Future research should be conducted to analyze the impact of open spaces by further subdividing them into natural landscapes such as mountains and rivers and artificial landscapes such as neighborhood parks.
Analysis of Changes in Property Tax Burden According to the Policy of Realizing Published Prices of Real Estate
Authors: Ann Jihee ,   Korea Real Estate Society
Published: July 2024

This study focused on the impact of the policy of realizing published prices of real estate on real estate property taxes and estimated the property tax burden using real estate price announcement data for land, single-family house, and apartment from 2017 to 2020. In addition, the changes in tax burden by year were analyzed and compared by real estate type, price level, and region to discuss the impact of the published price realization policy and suggest policy implications. According to the analysis of changes in the estimated property tax burden, the property tax burden increased significantly after the realization policy, and the gap in the property tax burden by region and price level widened. And the tax burden increased intensively on specific real estate types and high-priced real estate. This suggests that the policy of applying the realization of the published price differently by price range can rather hinder vertical and horizontal equity of taxation among taxpayers.
The Correlations Between Economic Growth and Socio-Economic Indicators in Nagan Raya Regency
Authors: Noviyanti Mariska , Noviar Helmi , Badli Saiful
Published: July 2024

This study aims to examine the relationship between economic growth and poverty, income inequality, and the quality of human resources. This study uses secondary data, namely time series data over 15 years from 2007-2021. The results of the empirical research show that economic growth is weakly correlated with poverty, income inequality, and human resource quality. In addition, it does not show any causal relationship. However, it is interesting that there is a negative correlation between poverty and the human development index and a positive and negative correlation between poverty and inequality. Several policy implications are recommended to the government about the results of the study and empirical analysis.
POLA KESANTUNAN KALIMAT PERMINTAAN PADA MODEL DIALOG ENGLISH FOR WAITER PADA MAHASISWA STIPAR TRIATMA JAYA
Authors: Antara I Made Agung Rai , Anggreni Ni Putu Yunik
Published: July 2024

Bahasa Inggris merupakan bahasa yang sangat dibutuhkan dalam industri pariwisata. Salah satunya adalah bahasa inggris untuk pramusaji atau English for Waiter. Mahasiswa STIPAR Triatma Jaya merupakan calon pekerja di industri pariwisata yang harus mampu melakukan percakapan tentang reservasi sampai menangani pembayaran di restoran menggunakan bahasa inggris dengan baik dan sopan. Salah satu hal yang sangat penting diperhatikan dalam berkomunikasi adalah kesantunan.Kesantunan berbahasa sangat penting dipahami dan dipraktekkan karena hal ini dapat dijadikan sebuah pedoman untuk berinteraksi dengan tamu dari berbagai negara yang menggunakan bahasa Inggris sebagai media untuk berkomunikasi. Tujuan penelitian ini adalah mengetahui pola kesantunan kalimat permintaan pada model dialog bahasa Inggris mahasiswa manajemen food and beverage dan pola yang paling sering digunakan mahasiswa. Penelitian ini merupakan penelitian kualitatif. Metode pengumpulan data dilakukan dengan metode dokumentasi dan observasi, yaitu mendokumentasikan dialog yang sudah ditulis mahasiswa kemudian dianalisis secara deksriptif kualitatif. Hasil penelitian menunjukan bahwa pola kesantunan kalimat permintaan yang terdapat pada model dialog English for Waiter dilihat dari syntactic realization didominasi oleh modals dengan frekuensi penggunaan sebanyak 221 kali, diikuti oleh kalimat imperatif sebanyak 101 kali, interogatif. 78 x dan deklaratif 32 x.Dilihat dari leksical realization, kata yang paling sering digunakan adalah like sebanyak 60 kata dan want sebanyak 6 kata.Kata Kunci : Bahasa Inggris profesi, kesantunan, kalimat permintaan
IDENTIFIKASI ASPEK HUKUM DALAM PENGEMBANGAN DESA WISATA (STUDI KASUS DI KABUPATEN BADUNG BALI)
Authors: Ariesta I Putu Agus Suarsana , Widiantara I G A Bagus
Published: July 2024

Keberadaan Desa wisata di Kabupaten Badung merupakan jawaban atas keinginan berbagai pihak stakeholders untuk memanfaatkan dan meningkatkan potensi wisata yang ada di suatu desa. Saat ini telah berdiri 11 desa wisata dengan berbagai tempat wisata, baik berupa keindahan alam maupun budaya setempat. Adanya 11 desa wisata tentunya menyebabkan desa lain ingin mengembangkan potensi desanya. Maka itulah kriteria dalam penelitian ini untuk menjadi desa wisata dari segi hukum, strategi pengembangannya hingga penetapan hukum desa wisata di Kabupaten Badung. Semua data dalam penelitian ini diperoleh dengan metode penelitian studi pustaka, observasi dan dokumentasi. Data yang diperoleh berasal dari instansi pemerintah khususnya Dinas Pariwisata, akademisi dan juga kelompok masyarakat yang mengetahui proses pengambilan keputusan dalam pembangunan desa wisata ini. Setelah data diperoleh, maka teknik analisis data yang digunakan dalam penelitian ini antara lain: Metode Deskriptif Kualitatif. Berdasarkan hal tersebut, maka desa tersebut secara hukum layak untuk ditetapkan sebagai desa wisata, dan digunakan desa lain sebagai contoh dalam mengembangkan potensi wisata untuk kesejahteraan masyarakat setempat.
The tourism village in Badung Regency is a response to the desire of stakeholders (stakeholders) to utilize and enhance the tourism potential in a village. When this has been established 11 tourist villages with various tourist attractions, both in the form of natural beauty and local culture. The existence of 11 tourist villages is certainly causing other villages to develop their village potential. So that's the criterion in this research to become a tourism village from a legal aspect, its development strategy to the legal determination of a tourism village in Badung Regency. All data in this study were obtained by the research methods of study literature, observation and documentation. Data obtained are from government agencies, especially the Tourism Office, academics and also community groups who know the decision making process in the development of this tourism village. After the data is obtained, the data analysis techniques used in this study include: Qualitative Descriptive Method. With these things in mind, the tourism village is legally feasible to be designated as a tourist village, and other villages can use it as an example in developing tourism potential legal aspectsfor the welfare of the local community.
Kata kunci: aspek hukum, strategi pembangunan, desa wisata.