bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of Dimension Reduction Methods for Stress Detection
Authors: Bergil Erhan
Published: December 2023

Effective detection of stress situations plays an important role in combating it. This is the main source of motivation for research to identify and evaluate different psychological conditions. Different monitor signals are used to identify individuals' stress situations in daily life. Electroencephalogram (EEG) signals are the main component used to detect stress and depression. The long-term acquisition of this signals partially interrupts daily life and negatively affects it. Researchers are trying to develop wearable technologies that can eliminate this disadvantage.  In this study, stress situations are detected utilizing different sensors without EEG signals. The achievements of three different classification methods for different dimensional feature spaces have been compared. The effects of the feature selection and dimension reduction methods on the system performance have been analyzed. During the dimension reduction process, Minimum Redundancy Maximum Relevance (MRMR), Anova, Chi-2, Relieff, Kruskal Wallis (KW) and Principal Component Analysis (PCA) methods are implemented. Support Vector Machines (SVM), Linear Discriminant Analysis (LDA) and k-Nearest Neighbor (k-NN) methods are used as classifiers. The best performance is achieved with 96.2 % accuracy in 15-dimensional by using LDA and PCA methods together.
Power and Thermal Analysis of A Pcm-Cooled Photovoltaic Thermal System With A 1-D Mathematical Model for Different Environmental and Boundary Conditions: A Case Study
Authors: Ökten Erkna , Kırcı Levent , Kılıçlı Özgür
Published: December 2023

Reducing the PV panel temperature significantly increases the PV panel efficiency. The most important parameters affecting the temperature of the PV panel are; environmental temperature, wind speed, sunbathing time, and irradiation. Although there are many methods for PV panel cooling, one of the most common methods is to cool the panel by placing PCM material on the PV panel's bottom surface.  In this study, PV/PCM integration under different boundary conditions was investigated with a 1-D mathematical model. In the study, environmental conditions were determined using real meteorological data, and the results were shared for four seasons. The mathematical model was performed for the conventional PV model, the PV/PCM integrated model, and the integrated PV/PCM which the base is kept at a constant temperature. As a constant temperature value, 10, 15, and 20 oC were chosen. The results were analyzed in terms of PV temperature, PCM melting rate, electricity production, energy absorbed by PCM, and thermal and electrical efficiency. If the annual performances are examined, the maximum electricity production is 263000 kW for the case where the PV/PCM base is kept constant at 10 degrees, and this value is 1200 kW higher than the traditional PV panel. The maximum absorbed energy by PCM was obtained as 26990 kW for the PV/PCM integration.
Biodegradable Pla/Ha Composite Material Production and Mechanical Characterization for Temporary Implant Applications
Authors: Çelik Talip , Saraçoğlu Büşra , Özkan Arif , İlhan Yasin
Published: December 2023

Hard tissues in the human body are damaged due to age, trauma, and bone diseases. Metal implants/prostheses are traditionally preferred to repair and treat these damaged tissues. Today, metals and their alloys meet the mechanical requirements of the musculoskeletal system well. However, the need to develop alternative composite materials has increased since metals are very stiff materials compared to bone. Problems such as stress shielding, and aseptic loosening can arise due to their high modulus of elasticity, and the need for secondary revision operations for such reasons. Also, the metal implant/prostheses should be removed after the healing that causes the undesirable secondary operation. In this study, polylactic acid (PLA) and hydroxyapatite (HA)-based composite materials were produced and their mechanical characteristics evaluated for possible implant applications. In addition, the PLA/HA composite materials stayed in Artificial Body Fluid (ABF) at different times, and the change in the mechanical properties were determined. PLA granules and HA powders were mixed in different ratios of weight (weight ratio 1:0, 9:1, 7:3, and 1:1) to produce 80 samples using the solvent casting technique. PLA was dissolved with chloroform in a magnetic stirrer at 200 rpm and room temperature, and then nano HA was added and mixed until homogeneity was achieved. After casting and drying, the samples were cut into appropriate standard sizes. The samples were subjected to biodegradability in-vitro test. In the results of this study, the modulus of elasticity increased with the increase of HA in the samples; however, the yield strength, ultimate strength, and yield strain of the samples decreased. In addition, it was observed that the existence of HA decreases the rate of degradation; therefore, the percentage of weakening in mechanical strength decreased in the measurements made at the end of the 15th day. According to these results, it was concluded that PLA/HA biodegradable composites can be developed to use as implant/prosthesis material.
Designing the Thinking to Reinterpret "Mother" through Kebaya Design
Authors: Tedjokoesoemo Purnama , Damayanti Maria Nala , Goenawan Felicia
Published: December 2023

Everyone will certainly agree how significant a mother's role is in a family. Without minimizing the father's role, the mother's figure in Eastern culture is closely related to domestic affairs at home, one of which is parenting. Eastern educational patterns tend to create boundaries between parents and children, often presenting their dilemma, especially in urban areas where all parents generally work to get a better life. Artsy people who tend to be introverted and have difficulty conveying their feelings verbally try to overcome this by presenting a mother figure as their design inspiration. This paper is design-based research by taking samples of the modern kebaya development process in the Visual Communication Media Class Academic Year of 2022/2023. The design development will use a 5 steps design thinking approach, with design conceptualization developed together with students from the Fashion Communication Class from the same academic year. This paper will investigate approaches that organically emerge in the collaboration process. An empirical study is conducted through a qualitative method to understand how peer-to-peer private discussion will help develop a design with a heart-touching background.
Investigating the Project Based Learning and Service Learning: A Case Study of Interior Design Program, Petra Christian University
Authors: Wardani Laksmi Kusuma , Santosa Adi , Sitindjak Ronald Hasudungan Irianto , Nilasari Poppy Firtatwentyna
Published: December 2023

Curriculum development is carried out by the Interior Design Study Program at Petra Christian University to foster academic competencies, encourage and facilitate students to master various sciences according to their specialization, as well as enable them to understand real problems and find creative solutions. This article discusses various learning activities that contribute to empirical knowledge regarding the successful implementation of project-based learning in a sustainable manner. Through project-based learning, the learning process is built on learning activities with real tasks that challenge students to solve daily life problems independently and collaboratively. Meanwhile, through service learning, students experience direct interaction with the community where they live. Overall, implementing learning helps promote the existence of the design profession to the public. Communities become more aware that they must increase awareness of their cultural environment. In contrast, students become more aware of their competence as designers in building a better environment.
Online Teaching at Universities in China: Advancement of Educational Technology or Reality's Helplessness?
Authors: Xi Chen , Halabi Khairun Nisa Mustaffa
Published: December 2023

The transition to online instruction in Chinese universities, similar to other global regions, may be analyzed from various perspectives. It is a progression in educational technology and an essential response to external factors, such as the COVID-19 outbreak. While technological advancements in the classroom have made online learning possible and increasingly efficient, it has shared difficulties. Many schools were unprepared for the sudden shift to online forms brought on by causes such as the pandemic and environmental issues; this manifests "reality's helplessness." This study adopted a qualitative method and in-depth interviews at selected universities to investigate the online teaching method's lack of some social dimensions fundamental to education, demonstrating significant implications for students' academic and personal growth. Therefore, this paper indicated that there is no "either-or" choice, as both points of view are correct. The outcomes from this study showed the advantages and disadvantages of online education to make better choices that expand kids' access to a high-quality education in China.
Analysis and Optimization Strategies of Pedestrian Environment around TOD Rail Transit Stations in Guangzhou
Authors: Wenjin Zhao , Halabi Khairun Nisa Mustaffa
Published: December 2023

This study extensively examines the urban dynamics of Guangzhou, a city that has notably embraced and incorporated the concept of Transit-Oriented Development (TOD) into its urban structure. Through a comprehensive and meticulously designed questionnaire survey, the research aims to understand different demographic groups' diverse preferences and needs. The main focus is comprehending individuals' views and experiences regarding the pedestrian environment near Transit-Oriented Development (TOD) stations. The study findings reveal a wide range of outcomes, indicating significant variations in walking distance tolerance and environmental satisfaction among different populations. Notably, walking distance emerged as a crucial factor, as a positive correlation was found between shorter perceived distances and higher levels of enjoyment. Evaluating pedestrian amenities reveals their insufficiency and emphasizes the need for improved pedestrian comfort and infrastructure. Various factors influence individuals' satisfaction with the walking environment. The assessment of pedestrian infrastructure in Guangzhou's Transit-Oriented Development (TOD) areas generally shows positive feedback, but there is still room for improvement. This study analyzes the current shortcomings in pedestrian infrastructure and proposes practical recommendations for enhancement. Its purpose is to provide a basis for policy formulation and future renovations to enhance pedestrian mobility near TOD train stations in Guangzhou.
Lighting System Trainer: Implementation of the Practical using Digital Energy Meter
Authors: Baharudin Muhammad Shahmi Aqmar , Wagiman Khairul Rijal , Adnan Mohd Faiz Md , Kasiman Abd Rahim
Published: December 2023

In the current situation, the lecturer had a problem in which the student still needs to be guided by the lecturer to implement the practical using a digital energy meter; the student always takes more time to implement the lighting technology practical task and still using the traditional ways for teaching and learning in the subject. Therefore, a Lighting System Trainer (LST) has been developed. The LST has been developed with two modules of learning: (1) lighting technologies and (2) lighting control. Various parameters, including current, voltage, real power, and power factor, can be measured. Based on the results, the LST performed well for both modules. Also, from the expert evaluation, all the experts agree that LST is suitable as a teaching aid. In addition, the expert also agreed that the LST can function well for lighting technology practical tasks. In conclusion, this study has successfully designed a Lighting System Trainer (LST) that can fully operate as a teaching assistant to help the teaching and learning process. For trainer development, systematic planning is essential to ensure that all activities carried out run well and in an orderly manner. Through the suggestions and comments given by experts on the LST, this study has made some improvements, and some have been proposed for further studies, e.g., improving the trainer. After all, the improvement process involves complex parts and requires a longer time.
Putnam and Dennett on instrumentalism and the intentional
Authors:   Temple University, Philadelphia, PA 19122, USA, H.G. Callaway H.G.
Published: December 2023

This paper examines Dennett’s conceptions of intentionality and consciousness—focused on his concept of the intentional stance (Dennett, 1987,1991b). It chiefly proceeds from a series of critical remarks due to Putnam (Putnam, 1999). Dennett has written extensively on the philosophy of mind; his work includes many scholarly and scientific contributions. He has attracted much attention to the philosophy of mind, cognitive psychology, and computer science; and he is an important critic of alternative views and theorists in related fields. The present paper draws on critical departures from Quine’s physicalism in publications of Putnam and Davidson (Davidson, 1963,1997); and it examines criticism brought against Dennett’s work on grounds of forms of instrumentalism and antirealism in the intentional stance. Evaluating Dennett’s posi¬tions and Putnam’s critical perspectives turn largely on understanding the relation of Dennett on intentionality, consciousness and the mental to formative and controversial theses of his acknowledged mentor, Quine (Quine, 1960). It will be argued that Dennett’s version of functionalism is best understood as a sophisticated physicalism, antirealism, and quasi-behaviorism in cognitive science.
On Legal Culture of Tax Enforcer in Indonesia
Authors: Santoso Didit
Published: December 2023

Kesenjangan empiris, kesenjangan yuridis, dan kesenjangan filosofis dalam tax enforcement menunjukkan perlunya penataan ulang terhadap budaya hukum yang berlaku dalam pelaksanaan tax enforcement di Indonesia. Padahal, para penegak hukum di bidang perpajakan telah dibekali dengan corporate values di Kementerian Keuangan, yaitu integritas, professionalisme, sinergi, pelayanan, dan kesempurnaan, serta harus menjalankan reformasi birokrasi secara konsisten dan berkelanjutan berdasarkan Peraturan Presiden Nomor 81 Tahun 2010 dan Peraturan Kementerian Pendayagunaan Aparatur Negara dan Reformasi Birokrasi Nomor 52 Tahun 2014. Berdasarkan analisis dan pembahasan, kajian literature ini menghasilkan dua kesimpulan. Pertama, budaya hukum dalam tax enforcement di Indonesia terlalu bersandar pada positivisme hukum, sehingga berpotensi disalahgunakan oleh oknum mengingat keterbatasan hukum dalam mengatur perilaku Wajib Pajak maupun para penegak hukum. Kedua, legal culture of tax enforcers in Indonesia selayaknya beorientasi budaya responsive, yang jangkauannya pada perilaku yang bukan sekedar rutinitas yang bersifat deduksi logis dan berdasarkan keterbatasan aturan tertulis.
CREATIVE ECONOMY AND ITS ROLE IN PREVENTING CORRUPTION IN INDONESIA
Authors: Bukhari Muh , Alam Ryan S.
Published: December 2023

The creative economy sector, which in it attached the economy, technology, information, innovation, and intelligence, is a righteous infrastructure to tackle corruption. Technology that strongly supports the national economy, then economic growth is expected to increase the supremacy of law, and the rule of law can decrease corruption, while corruption has been widespread on economic rent-seeking behavior which is technically legal has reduced economic efficiency by justifying excessive expenditure, monopoly power, and weak enforcement. Thus, it is important and urgent to conduct a juridical study using new institutionalism theory to reconceptualize the creative economy with corruption prevention. The corruption in Indonesia cannot rely on the concept of creative economy limited to the thoughts, ideas, or creativity of HR as the main production factors in economic activity, but the concept must be shifted to the form of economic efficiency, propriety of business, collective restraints, and institutions that have accommodated public participation, transparency and accountability as the main weapons in preventing corruption. In supporting the development of creative economy law, the Ministry of Tourism and Creative Economy can generate a legal certainty guarantee for the running of an efficient, healthy and smooth creative economy by producing anti-corruption-based e-commerce law. Other supports are: continuously socializing the anti-corruption based economy creative, giving incentives or appreciation for whose creative economics ideas and creativities establish the economic rent prevention, providing the efficient and appropriate technology in the context of the creative economy, and creating whistleblowers application as early warning system in eradicating corruption.
Community Oral Health Promotion: Evaluation of an Educational Intervention for the Prevention of Oral Cancer and Premalignant Lesions
Authors: Montano-Silva Rosa María , Matos-Arias Sheyla , Hernández-Álvarez Dachel , Abraham-Millán Yoneisy , Ruiz-Salazar Reynier , Abraham-Millán Yoneisy
Published: December 2023

Introduction: oral cancer is one of the top ten locations of cancer incidence in the world and in Cuba. Objective: develop a community intervention for the promotion and prevention of premalignant lesions and oral cancer in patients aged 19-59 years. Method: community intervention with experimental design, with pre-test, post-test and control group, in clinics 1, 3 and 24 belonging to the three polyclinics of the Isle of Youth in the period 2017-2019. The sample was 1300 patients distributed in the three offices, being probabilistic, simple random. An experiment group and a control group were determined for each office, made up of the same number of patients. Theoretical, empirical and mathematical-statistical methods were used and the variables: age groups, sex, risk factors, oral hygiene and level of knowledge about premalignant lesions and oral cancer. Results: the age group of 35-59 years predominated for 71,7 % and the female sex for 63,7 % in the studied sample. Before the intervention, a bad level of knowledge predominated, representing 43,7 % of the experimental group, managing to raise it too good after the intervention by 67,5 %, reducing the risk factors initially detected. Conclusions: the use of new information and communication technologies in promotion and prevention activities contributed to raising the level of knowledge about premalignant lesions and oral cancer, the main risk factors and oral self-examination, and to transforming the ways of performance
Food safety and the approach of the Human Milk Collection Center at the Hospital Zonal General de Agudos “Prof. Dr. Ramón Carrillo”
Authors: Orsetti Matias , Bertolini Yamila , Villaalta Andrea Fabiana , Creo Fernanda , Santillan Patricia , Inzaurralde Noemi
Published: December 2023

Introduction: human milk banks are vital institutions for maternal and child health, promoting breastfeeding and neonatal care by processing and distributing donated breast milk. These banks contribute significantly to public and neonatal health by reducing medical complications and associated costs. In addition, they support maternal and child health policies, improving the quality of life of infants and reducing infant mortality. They are also fundamental for medical research on breast milk and its impact on infant health.Objective: to describe the implementation of a Critical Control Point analysis plan to ensure safe handling and increased volume of raw human milk.Methods: an observational and descriptive study was conducted in the milk bank, observing and documenting daily procedures and interviewing personnel. Internal documents were analyzed and a qualitative approach was applied to identify patterns and good practices.Results: preventive and precautionary measures were implemented to ensure food safety, including Good Manufacturing Practices (GMP) and Standard Operating Procedures for Cleaning and Disinfection (SSOP). Critical points such as personnel hygiene and storage temperature were controlled. Traceability from donor to recipient was maintained, ensuring that raw and pasteurized milk was properly labeled. A health services network was established with the HIGA San Martin de La Plata Milk Bank to distribute pasteurized milk equitably.Conclusions: the HIGA Prof. Dr. Ramon Carrillo HIGA milk bank has been successful in maintaining food security and increasing the availability of raw and pasteurized human milk. Despite challenges such as a building renovation, a rigorous control of critical points has been maintained. Cooperation with the HIGA San Martin Milk Bank has facilitated the equitable distribution of pasteurized milk. This report highlights the success in ensuring food security and access to breast milk for the most vulnerable newborns
Evaluation of educational intervention on sexually transmitted diseases in adolescents
Authors: Ramírez Izquierdo Lázaro , Torres Zaldívar Rubí
Published: December 2023

Introduction: Insufficient knowledge about Sexually Transmitted Infections (STIs) among adolescents is a serious problem that requires attention. Sex education is essential to address this problem and promote a healthy relationship with sexuality. Adolescence is a critical stage for establishing behaviors and attitudes, and effective educational programs are critical to improve knowledge and awareness of STIs in this vulnerable population. Methods: An educational intervention study was conducted to improve STI knowledge in adolescents. The effectiveness of the intervention was evaluated by means of before and after questionnaires, being considered effective if more than 80% of the sample improved their knowledge. Results: Active sexual life increases the risk of STIs. Education is essential to prevent them, but lack of information and social taboos are obstacles. After an educational intervention, adolescents improved their knowledge, including symptoms, prevention and behavior to follow. This highlights the importance of education in promoting healthy sexuality and prevention. Conclusions: Adolescents have little knowledge about STIs before education, which improves their understanding. Lack of parental information and social taboos contribute to this lack. Adequate understanding of STIs is essential for informed sexual health decisions. Sex education should be a shared responsibility between family, school and health professionals, actively involving adolescents.
Evolution and characteristics of speech and language therapist services in a high complexity Chilean hospital according to monthly statistical records (REM)
Authors: Burdiles Aguirre Jorge , Hidd Cuitiño Nicole , Crisosto Alarcón Jaime , Rojas Carlos
Published: December 2023

Introduction: speech and language therapist services has been extensively described. However, in Chile the evolution and characteristics of these services at hospital level and especially during the last years (pre and post COVID-19) are unknown. The exploration of these data could contribute to the development of strategies and decision making at the local level. Objective: to determine the evolution and characteristics of speech and language therapist services between the years 2015-2022 in a Chilean high complexity hospital. Methods: by means of a quantitative, transectional and descriptive design, 96 databases corresponding to the Monthly Statistical Records (REM) between January 2015 and December 2022 were reviewed. The variables analyzed were: number of initial and intermediate evaluations, hospital rehabilitation sessions, home rehabilitation and procedures-activities performed. Results: an oscillating increase in the number of speech and language therapist services performed between 2015-2022 was observed. Preference is given to hospital rehabilitation sessions (95,626 services) followed by initial evaluations (11,550). By specific area, the highest number of benefits was obtained by swallowing rehabilitation (22,594), while individual and group auditory rehabilitation only presented 7 and 11 records respectively. Conclusions: the analysis of the REM exhibits an incremental evolution of the registry of speech and language therapist services, especially since the last three years (2020 onwards), this despite the fluctuations observed during the previous years (2015-2019). This increase would be directly related to the increase in the hiring of professionals, improvement of supplies and equipment, incorporation of the speech therapist to pathologies with explicit health guarantees (GES) and the need for professional staffing due to the COVID-19 contingency
On the Translation of Documentaries Themed on the Chinese Nation from the Perspective of Translinguality: A Case Study of Chinese Children
Authors: Lei Jing , Yang Yilin , Yang Shujia
Published: December 2023

With the development of media technology, documentaries of the Chinese nation are used more and more as a vehicle to present natural scenery, local customs as well as the traditional culture of ethnic groups. Little research has been conducted on the translation of documentaries themed on the Chinese nation despite of the study of such documentaries in terms of video creation and intercultural communication. The translation of documentaries is mainly constrained by the co-existence of the sound and the visual channels. This study applies translinguality in the analysis of Chinese Children, a multilingual and multimodal documentary space loaded with symbolic resources of Chinese ethnic groups, examines its transcending, converging and performative features and reveals how those features facilitate the translation. This study concludes when viewing the documentary as a translingual space, translation can better overcome the constraints. In languages, language boundaries can be transcended to find an equivalent translation creatively; In modalities, translation can draw on multiple modalities to bridge linguistic and cultural differences, as well as reach a balance between the sound and visual channels; In symbolic resources, translation should pay special attention to the expression process of semiotic resources in both acoustic and visual channels and how the symbols become performative.
Antioxidant, anti-inflammatory, and antibacterial activities against acne-causing bacteria of Miliusa velutina (A.DC.) Hook.f. & Thomson extracts
Authors: Phrompanya Phornphan , Buncharoen Wararut , Tragoolpua Yingmanee , Saenphet Kanokporn
Published: December 2023

Context: Acne is often associated with bacterial infection, inflammation, and oxidative stress. In Thailand, Miliusa velutina has traditionally been used to relieve pain and to heal wounds. Given its biological properties, M. velutina extracts may represent an alternative approach to treat acne. Aims: To characterise M. velutina extracts regarding their antioxidant and anti-inflammatory properties and antibacterial activity against acne-causing bacteria. Methods: We prepared crude methanolic and aqueous extracts of M. velutina leaves and stem bark by maceration. We evaluated the antioxidant activity of the extracts by using four in vitro methods and determined the total phenolic and flavonoid contents. We tested the anti-inflammatory activity of the extracts by examining their ability to inhibit nitric oxide production in RAW 264.7 macrophages. We tested the antibacterial activity against acne-causing bacteria by using the agar diffusion method and by determining the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC). Results: The methanolic bark extract showed potent antioxidant properties, denoted by its ability to scavenge the ABTS and DPPH radicals and its iron-reducing power and total antioxidant activity. The methanolic leaf extract presented the best ability to inhibit nitric oxide production, with a half maximal inhibitory concentration (IC50) of 7.20 ± 1.92 µg/mL. Additionally, M. velutina extracts exhibited antibacterial activity against Cutibacterium acnes, Staphylococcus epidermidis, Staphylococcus aureus, methicillin-resistant S. aureus and Pseudomonas aeruginosa, with the MIC and MBC ranging from 0.49 to 62.50 mg/mL. Conclusions: These findings indicate that M. velutina extract can be used as a novel therapeutic agent for acne treatment owing to its antioxidant, anti-inflammatory and antibacterial properties.
TINJAUAN ULANG PERHITUNGAN STRUKTUR ATAS GEDUNG SEKOLAH SDN 02 LUBUK BUAYA DENGAN MENGGUNAKAN SOFTWARE SAP 2000
Authors: Nazili  , Julita Andrini R  , Nelly Hildayanti Nehe
Published: December 2023

Tinjauan ulang perhitungan struktur atas gedung sekolah SDN 02 Lubuk Buaya dengan menggunakan software SAP 2000 yang berlokasi di Jalan Bhayangkara No. C12, Lubuk Buaya, Kecamatan Koto Tangah, Kota Padang, Sumatera Barat merupakan tempat lokasi penelitian yang dilakukan Gedung sekolah ini terletak di kota Padang berada di wilayah zona gempa. Dalam melakukan tinjauan perhitungan struktur atas ini mengunakan 2 cara yakni secara manual dan mengunakan aplikasi SAP 2000 Versi 14. Gedung sekolah ini terletak di kota Padang berada di wilayah zona gempa 5 yang juga berdasar atau berlandaskan sesuai peraturan SNI 2847:2019,SNI 1726:2019, PBI 1987,PPPURG 1989 hasil penelitian yang didapat melalui preliminary design kolom 400 x 400 mm,300 x 300 mm,,balok induk 300 x 500 mm, balok anak 200 x 300 mm dan plat lantai 120 mm. Dengan tulangan yang didapat juga berbeda. Lalu hasil penelitian ini akan dibandingkan dengan perencanaan awal. Sehingga hasil penelitian yang didapat terdapat perbedaan yang mungkin diakibatkan asumsi pembebanan serta ketelitian.
MITIGASI RISIKO MENGGUNAKAN METODE FAILURE MODE AND EFFECT ANALYSIS (FMEA) DAN HOUSE OF RISK (HOR) PADA PRODUKSI TOMAT BEEF DENGAN HIDROPONIK SISTEM IRIGASI TETES
Authors: Ivonne Ayesha  , Dhafa Fathurohman Sidiq  , Rosros Rosdiantin
Published: December 2023

Tujuan mengidentifikasi risiko dalam proses produksi tomat beef, dan menyusun strategi mitigasi risiko-risiko pada proses produksi tomat beef yang dibudidayakan dengan hidroponik sistem irigasi tetes (drip irrigation).  Penelitian dilakukan di Balai Besar Pelatihan Pertanian (BBPP) Lembang. Pemilihan lokasi dilakukan secara sengaja (purposive method). Metode penelitian yang digunakan adalah studi kasus. Responden terdiri dari responden utama sebanyak 3 orang yaitu petugas/pekerja lapangan di devisi screenhouse tomat beef. responden tambahan adalah pegawai widyaiswara. Data dianalisis secara deskriptif dan kuantitatif. Analisis deskriptif dengan menyajikan hasil pengamatan maupun pengukuran dalam bentuk uraian yang jelas. Analisis kuantitatif menggunakan metode Failure Mode and Effect Analysis (FMEA) dan House of Risk (HOR) tahap satu dan dua. Hasil penelitian menemukan bahwa dalam proses produksi tomat beef terdapat sebanyak 18 kejadian risiko (risk event), dan 6 penyebab risiko (risk agent). Nilai ARPj pada HOR fase 1 diperoleh: A1 (Kesalahan Pemeliharaan Tanaman) = 561, A2 (Kesalahan Pemanenan = 270, A3 (Kesalahan Tenaga Kerja = 540, A4 (Kesalahan Penanganan Pasca Panen = 438, A5 (Kesalahan Faktor Eksternal = 216, A6 (Kesalahan Tahapan Produksi) = 459. Berdasarkan temuan tersebut ditetapkan 3 prioritas untuk dilakukan mitigasi risiko meliputi A1 (561), A3 (540) dan A6 (459)., dengan Proactive Action (PA) atau strategi mitigasi; 1) Proactive Action 1 (PA1) dengan membuat jadwal pemeliharaan rutin dan terjadwal; 2) Proactive Action 3 (PA 3), dengan membuat SOP teknis, dan 3) Proactive Action 2 (PA 2) dengan membuat SOP Spesifik.
Sosyal Medyada Marka Bilinirliği: Tüketicilerin Tutumları ve Niyetleri Üzerine Bir Araştırma
Authors: ÇEPNİ ŞENER Betül
Published: December 2023

Teknolojik gelişmelerin ortaya çıkması ve büyümesi markalar açısından büyük fırsatlar yaratmıştır. Bu teknolojik gelişmelerin ortaya çıkmasından önce markalar geleneksel mecralar aracılığıyla hedef pazarlarına ulaşmaya; onları ürün ve hizmetleri hakkında bilgilendirmeye çalışmaktaydı. Günümüzde ise giderek ağlarla bütünleşen bir ekonomide markalar, hedef pazarlarına ulaşma ve bilgi iletmenin ötesinde, tüketicilerin istek ve ihtiyaçlarını belirleme ve diyalojik iletişim kurma gibi her iki tarafın da süreçte aktif rol alabileceği stratejiler benimsemeye başlamışlardır. Dolayısıyla, markaların tüketici davranışlarını anlayabilmeleri için internet temelli teknolojiler dâhilinde marka ile etkileşimini değerlendirmesi oldukça önemlidir. Bu noktadan hareketle çalışmanın amacı, sosyal medyada marka bilinirliğinin (marka farkındalığı ve marka çağrışımı) tüketici tutum ve niyetleri (satın alma niyeti ve elektronik ağızdan ağıza iletişim niyeti) üzerindeki etkisini incelemektir. Çalışmada bağımlı değişkenler tüketici tutum ve niyetleri, bağımsız değişken ise sosyal medyada marka bilinirliğidir. Bu bağlamda nicel araştırma, çalışmanın yöntem kısmını oluşturmaktadır. Çevrimiçi ortamda veriler toplanarak analizler yapılmıştır. Analiz sonuçları marka farkındalığının satın alma niyeti üzerinde; marka çağrışımının ise marka tutumu ve elektronik ağızdan ağıza iletişim niyeti üzerinde etkili olduğunu ortaya koymaktadır. Markanın farkında olan tüketicilerin, o ürünü ya da hizmeti satın alma niyetlerinin daha yüksek olduğu söylenebilir. Diğer taraftan, marka çağrışımı yapan unsurların ise tüketicinin markaya yönelik tutumu ve marka hakkında konuşma niyeti üzerinde olumlu bir etkiye sahip olduğunu ifade etmek mümkündür.
Dijital Tayfa Çizgi Dizisinin “Dijital Okuryazarlığının Bileşenleri” Üzerinden İncelenmesi
Authors: DURSUN Zehra , ÇİLİNGİR Ayşegül
Published: December 2023

Yaşadığımız bilgi ve enformasyon çağında dijital teknolojiler ve dijital medya günlük yaşamın merkezi haline gelmiştir. Özellikle gençlerin dijital teknoloji ile etkileşimlerinin yüksek düzeyde olması dikkat çekicidir. Dijital teknoloji hayatın birçok alanında kolaylık sağlasa da doğru şekilde kullanılmadığında e güvenlik, sanal zorbalık, internet bağımlılığı, gibi birçok olumsuz durumu da karşı karşıya getirmektedir. Bu nedenle gençlerin dijital okuryazarlığı ve dijital farkındalığının artırılmasının desteklenmesi konusunda birçok proje yapılmaktadır. Bu projelerden biri de TRT Çocuk ekranlarında yayınlanan çocukların çok sevdiği Rafadan Tayfa çizgi dizisinden uyarlanan ve Cumhurbaşkanlığı Dijital Dönüşüm Ofisi tarafından 2020 yılında hazırlanılan Dijital Tayfa adlı çizgi dizidir. Yapılan çalışmada, Dijital Tayfa çizgi dizisi, Milli Eğitim Bakanlığı tarafından öğretmenler için hazırlanan “Dijital Okuryazarlığı” kılavuzundaki Dijital Okuryazarlığın Bileşenleri kapsamında ele alınmıştır. Çalışmada doküman analiz yöntemi kullanılmıştır. Çalışmanın amacı, TRT Çocuk ekranlarında 10 bölüm olarak yayınlanan Dijital Tayfa çizgi dizisinde Dijital Okuryazarlığın Bileşenleri’nin nasıl işlenildiğini tespit etmektir. Dijital Tayfa çizgi dizisinin bütün bölümlerinde farklı dijital okuryazarlığı bileşenlerine rastlanılmıştır. Bu bileşenlerden yaratıcı düşünme, bilgi iletişim teknolojileri ve eleştirel düşünme ve değerlendirme bileşenlerinin sık, iş birliği bileşenin daha nadir kullanıldığı görülmüştür.
Solution of Time Independent System of First Order Ordinary Differential Equations Using Embedding Method in Fuzzy Environment
Authors: Hassan Habibu , Tahir Alhaji
Published: December 2023

In this study, time independent system of first order fuzzy ordinary differential equations is solved using embedding method. Results for the system of FODEs are obtained and a case of non-homogeneous system of FODEs is established and used to find the Eigen values in an  n x n matrix with negative real numbers R- consisting of n fuzzy numbers. Examples are constructed using the principles of existence and uniqueness. It is recommended that further study should look at the possibilities of generalizing this work to nth order system of first order ordinary differential equations using embedding method in fuzzy environment.
Developing the Third Order Linear and Nonlinear Fuzzy Ordinary Differential Equations in Hilbert Space by the Extension Principle.
Authors: Hassan Habibu , Tahir Alhaji
Published: December 2023

In this study, a third nonlinear fuzzy ordinary differential equation is defined and established in Hilbert space using extension principle. The results obtained gives clear distinction between this work and the existing ones in the literature an example is formulated which shows that a closed subset of a Hilbert space is a Hilbert Space. It is recommended that future study should consider the development of system of third order linear and nonlinear fuzzy ordinary differential equations in Hilbert space by the extension principle.
Comparative Evaluation of Unpeeled Cassava (Manihot esculenta) and Tacca (Tacca involucrata) Tuber Flours as Substrates for Bioethanol Production
Authors: Awodi Philip Sule , Ujoh John Adole , Adikwu Peter , Nwagu Tochukwu Nwamaka
Published: December 2023

The ever-increasing demand for alternatives to fossil fuel due to its negative impacts on the environment and high prices have resulted in the search for feedstock for bioethanol production. Cassava is one of the major staple foods that is processed into various preservative forms in Nigeria, while tacca is a plant growing in the wild and is eaten by a few people during scarcity of food. Unpeeled cassava and tacca tubers were processed into flour. The flour was hydrolyzed using Aspergillus niger and Saccharomyces cerevisiae, separately. The bioethanol potentials of tuber flours were evaluated using a single-step process. Hydrolysis of 10g of cassava tuber flour separately by Aspergillus niger and Saccharomyces cerevisiae produced (g/100mL) 0.720 and 0.765 of sugar, respectively, while hydrolysis of 10g of tacca tuber flour separately by Aspergillus niger and Saccharomyces cerevisiae produced (g/100mL) 0.392 and 0.367 of sugar respectively. Evaluation of the effect of time during hydrolysis of cassava tuber flour for 24h by Aspergillus niger and Saccharomyces cerevisiae separately produced (g/100mL) 1.44 and 0.737 of sugar, while hydrolysis of tacca tuber flour for 24h  produced (g/100mL) 0.768 and 0.493 of sugar. Evaluation of the effect of varying pH values during hydrolysis of the tuber flours revealed that pH 5.6 produced the highest concentration of sugar (0.240g/100mL) and (0.803g/100mL) when Aspergillus niger and Saccharomyces cerevisiae were separately used to hydrolyze cassava tuber flour. When Aspergillus niger and Saccharomyces cerevisiae were separately used to hydrolyze tacca tuber flour at pH 5.6, 0.626g and 0.436g of sugar was produced. Fermentation of cassava tuber flour by mixed culture of Aspergillus niger and Saccharomyces cerevisiae for 48h produced 3.851%(w/v) bioethanol at 24h of fermentation, while fermentation of tacca tuber flour by mixed culture of Aspergillus niger and Saccharomyces cerevisiae produced 3.236% (w/v) bioethanol at 48h. Cassava tuber flour produced a higher concentration of bioethanol than tacca tuber flour. These results have shown that tacca tuber is a potential feedstock for bioethanol production, hence exploitation of nonfood materials such as tacca tuber for bioprocesses can reduce the over _dependence on cassava tuber.
Extreme Rainfall Modeling through the Lens of Extreme Value Theory: A Case Study of Katsina City, Nigeria
Authors: Kane Ibrahim Lawal , Tahir Khadija Umar , Rabe Anasu
Published: December 2023

Climate change has conveyed about strange new weather patterns, among others is changes in rainfall extremes. To make adequate inferences about extreme rainfall, it's important to invest in meteorological research. This can include the use of climate models to predict extreme rainfall events with greater accuracy. Additionally, information sharing can help ensure that countries are well-prepared for extreme weather events and can collaborate to address the global challenges posed by climate change. Monthly rainfall record of Katsina city was collected from the Nigerian Meteorological Agency (NiMet), Nigeria. In pursuit of this objective, the study employed Extreme Value Theory to model and forecast extreme rainfall of Katsina city, utilizing rainfall data spanning from 1989 to 2019. The research employed the Maximum Likelihood Estimation method to derive the model parameters. For the Generalized Extreme Value Distribution (GEVD), the block maxima approach was applied, whereas the Generalized Pareto Distribution (GPD) was fitted using the Peak Over Threshold method. The analysis revealed that the optimal model within the GEVD framework was the Frechet distribution, whereas the ordinary Pareto distribution emerged as the optimal model when considering values above the threshold. Additionally, the study included predictions for return periods of 2, 20, and 100 years based on the return level estimates, accompanied by the presentation of their respective confidence intervals. The analysis demonstrated that as the return periods lengthened, there was a proportional increase in the return levels. The study's model diagnostics, involving probability, density, quantile, and return level plots, collectively indicated that the provided models were well-suited for the dataset.
New Generalized Odd Fréchet-G (NGOF-G) Family of Distribution with Statistical Properties and Applications
Authors: Abubakar Sadiq Ibrahim , Doguwa Sani Ibrahim , Yahaya Abubakar , Garba Jamilu
Published: December 2023

The distribution theory literature contains recent types of parametric distributional models that have been successfully used in the past and whose goodness of fit is sufficient only for certain datasets, suggesting further attention to accommodate a wider range of real-world datasets, for more adaptability, efficiency, and applications. This study aims to develop an extended Fréchet-G family of distributions and study their mathematical properties. The method of Alzaatreh is employed in developing a new lifetime continuous probability distribution called the new Generalized Odd Fréchet-G Family of Distribution. The developed distribution is flexible for studying positive real-life datasets. The statistical properties related to this family are obtained. The parameters of the family were estimated by using a technique of maximum likelihood. A New Generalized Odd Fréchet-Weibull model is introduced. This distribution was fitted with a set of lifetime data. A Monte Carlo simulation is applied to test the consistency of the estimated parameters of this distribution in terms of their bias and mean squared error with a comparison of M.L.E and the maximum product spacing (MPS). The findings of the Monte Carlo simulation show that the M.L.E method is the best technique for estimating the parameter of New Generalized Odd Frechet-Weibull distribution than the M.PS method. The findings of the application on the data set produce a higher flexibility than some of the competing distributions. In general, our new distributions serve as a viable alternative to other distributions available in the literature for modelling positive data.
Influence of Soret and Radial Magnetic Field on Natural Convection of a Chemically Reactive Fluid in an Upright Porous Annulus
Authors: Ojemeri Godwin , Hamza Muhammed Murtala , Tambuwal Badamasi Haliru , Bello Ibrahim , Shuaibu Abdulsalam
Published: December 2023

Mass fluxes produced by temperature gradients is known as the Soret or thermal-diffusion effect and this effect can be very crucial in the appearance of strong density difference in the flow premises. This article therefore explores the analytical solutions of natural convection of a chemical reacting fluid in the involvement of Soret and radial magnetic field in an annular upstanding permeable zone within concentric cylinders’ r = 1 and r = b. The non-linear formulated equations that govern the flow are resolved by a semi-analytical approach. The consequences of the numerous governing controlling parameters embedded in the formulated model is thoroughly described with the use of illustrative plots. It is noteworthy to report that raising the levels of Frank–Kamenetskii, sustentation, and thermo-diffusion parameters increases fluid velocity whereas reducing the radial magnetic field effect weakens the fluid flow. Additionally, it is significant to report that the sheer stress on the annular walls can be effectively regulated by applying appropriate values of magnetic number. In conclusion, the variations of the key parameters in this study can be used more effectively to control heat transfer and fluid flow using an annular geometry. This study can find relevance in geothermal power generation, drilling activities, space vehicles technology and nuclear power plants etc.
Prevalence of Dandruff among the Pupils and Staff of some Selected Public Schools in Katsina State
Authors: Nawaf A.  , Sanusi Junaidu , Ibrahim S.  , Babangida I.  , Liadi S.
Published: December 2023

Dandruff is characterized by patches of loosely attached flakes on the scalp, which are generally accompanied by irritation. malassezia species of the genus restricta and globossa, Staphylococcus species of the genus aureus, and Bacteria of the genus Propiobacterium are components of human skin microflora and etiological agents of dandruff.   The purpose of this study was to investigate the prevalence of dandruff,  Isolation and identification of the pathogens causing the dandruff infection among secondary school students in Katsina State. The study was a cross-sectional survey conducted with the permission of seven local government areas, namely: Katsina, Funtua, Mani, Kankia, Malunfashi, Dutsin-ma, and Daura. According to the prevalence studies of the selected LGAs, Kankia and Mani Local Governments had the highest prevalence rates of 14.81% and 14.65%, respectively, followed by Daura, Malunfashi, and Funtua with 14.49%, 14.33%, and 14.01%. Dutsinma and Katsina had the lowest prevalence rates, of 13.85% and 13.85%, respectively.    Males (51%) were more affected than females (49%), out of the 420 people polled.  The prevalence by age shows that the age group 11-20 years has the highest incidence of dandruff infection, with 58.83%, followed by the age groups 1-10 years, with 21.88%, and 21-30 years, with 8.27%. The socioeconomic position of the individuals studied was found to be a risk factor for the occurrence of this disease. The prevalence of dandruff was highest in villages, followed by towns, with 58% and 42%, respectively. To prevent the spread of this disease, the researchers recommend sterilizing barbing and weaving materials.