bluuebunny/crossref_metadata_2025 huggingface dataset:
Submerged Membrane Photo Reactor (SMPR) with Simultaneous Photo Degradation and TiO2 Catalyst Recovery for Efficient Dyes Removal
Authors: Ariyanti Dessy , Wicaksana Filicia , Gao Wei
Published: December 2021

In this study, a polyvinylidene difluoride (PVDF) hollow fiber membrane module incorporated with TiO2 was submerged into a photocatalytic reactor to create a hybrid photocatalysis with membrane separation process (a submerged membrane photoreactor, SMPR), for advanced dyes wastewater treatment. The SMPR performance was assessed by the degradation of single component Rhodamine B (RhB) and degradation of mixed dyes (RhB and Methyl orange (MO)) in a binary solution. Several operational parameters such as the amount of catalyst loading, permeate flux, and the effect of aeration were studied. Fouling tendency on the membrane was also investigated to determine the optimum operating conditions. The results show that the synergetic effect of the low catalyst loading and permeate flux creates the environment for optimum light penetration for high photocatalytic activity as the hybrid system with low catalyst loading (0.5 g/L) and 66 L/m2h of flux with aeration at 1.3 L/min has proven to increase the photocatalysis performance by 20% with additional catalyst recovery. In addition, applying the low catalyst loading and flux permeate with aeration brings minimal fouling problems.
Identifikasi material dan perhitungan kembali tegangan tangensial barrel rear suspension dump truck EH 5000
Authors: Fattahillah Edgiv , Darmo Suryo
Published: December 2021

Suspensi dump truck berfungsi sebagai peredam kejutan dari permukaan jalan, penyangga berat unit, memberikan kenyamanan pada operator dan menjaga kestabilan unit (empat roda selalu menyentuh tanah). Barrel adalah komponen penting dalam suspensi dump truck. Komponen tersebut berbentuk tabung pada suspensi dan berfungsi sebagai rumah untuk piston. Barrel yang bukan standar original Hitachi sering mengalami kerusakan. Penelitian ini bertujuan untuk mengetahui nilai kekerasan dan kekuatan tarik pada material barrel suspensi belakang, komposisi kimia dan struktur mikro pada material barrel suspensi belakang, dan nilai tegangan tangensial pada dinding barrel.Penelitian ini dilakukan dengan empat pengujian, yaitu uji kekerasan, uji tarik, uji struktur mikro dan uji komposisi kimia. Pengujian kekerasan dengan menggunakan alat uji kekerasan Brinell, pengujian tarik dengan menggunakan alat uji tarik (universal testing machine), pengujian komposisi kimia dengan alat spectrometer, dan pengujian struktur mikro dengan metallographic microscope. Sedangkam untuk mencari nilai tegangan pada dinding barrel dilakukan perhitungan tegangan tangensial.Hasil dari penelitian ini menunjukkan bahwa material barrel mempunyai nilai kekerasan rata rata 200,50 HB, nilai kekuatan luluh σy 433-494 MPa, nilai kekuatan tarik σu 740-751 MPa, kandungan pada material termasuk kategori baja 27 SiMn, struktur mikro pada material terdapat fasa ferrite dan pearlite, material aman terhadap beban statis, dan tegangan tangensial yang terjadi lebih rendah dari kekutan luluh.
EKSTRUKSI DAN KARAKTERISASI FILAMEN KOMPOSIT POLYLACTID ACID (PLA) / CARBON NANO TUBE (CNT)
Authors: Oktavian Dicky , Arifvianto Budi , Mahardika Muslim
Published: December 2021

Dewasa ini teknologi additive manufacturing (AM) mengalami perkembangan yang pesat. Salah satu metode additive manufacturing yang saat ini populer di berbagai belahan dunia adalah metode fused deposition modelling. Prinsip kerja metode ini adalah dengan cara mengekstrusi material filamen polimer yang meleleh dan sudah melewati temperatur rekristalisasinya melalui sebuah nozzle, kemudian produk akan terbentuk secara lapis demi lapis yang dibentuk melalui gerakan relatif dari meja mesin. Dalam pengaplikasiannya, material filamen dapat dibuat dalam bentuk komposit sehingga diperoleh sifat-sifat unik tertentu sehingga dapat digunakan pada bidang-bidang tertentu. Salah satunya adalah pada bidang kesehatan, sebagai pembuatan implan atau jaringan tubuh dengan memiliki kekuatan yang tinggi dan bersifat biodegradable. Pada penelitian ini, dilakukan pembuatan filamen komposit PLA-CNT dengan metode ekstrusi. Proses ekstrusi dilakukan dengan variasi temperatur 143, 145, dan 147ºC dengan memberi tambahan polyethylene glycol (PEG) sebagai plasticizer untuk meningkatkan fleksibilitas dan workability. Hasil pengamatan dengan scanning electron microscope (SEM) mengindikasikan bahwa proses ekstrusi berjalan kurang stabil karena terdapat tekstur permukaan yang bergelombang. Dari pengujian karakterisasi differential scanning calorimetry (DSC), derajat kristalinitas pada variasi ekstrusi filamen PLA-CNT mengalami peningkatan seiring meningkatnya temperatur ekstrusi. Pada pengujian karakterisasi fourier transform infrared spectroscopy (FTIR) terdapat perubahan komposisi kimia pada filamen yang signifikan, yang juga sejalan dengan degradasi sifat mekanis. Variasi filamen dengan temperatur ekstrusi 147ºC memiliki nilai kekerasan paling tinggi yaitu sebesar 40,50 MPa.
The Effects of Using Smartboard in Teaching and Learning a Foreign Language
Authors: Sidgi Dr. Lina Fathi Sidig
Published: December 2021

The following study reviews the advantages attached to the use of smartboards in the facilitation of the teaching and learning process. The content covered below is therefore majorly categorized into two parts. The first part of the research will address the incorporation of this method in the teaching process of foreign languages and the resultant benefits of the same. Then, the research will look into the use of smartboards in the learning process and the effectiveness of the method to improve the understanding ability of the learners. The case study includes 10 participants who are learners from Saudi university who learn English as a foreign language. The participants of the research were picked via random sampling and were put under the study for a period of one week in order to acquire the intended information from them. Each of the above categories was composed of five learners. The research mostly incorporated questionnaires in both closed and open forms before the activity as well as after to retrieve the necessary data. This data also reflected on the student motivation and attitude towards learning English as a foreign language (Akbari, Z. 2015).
Poetic Justice in Bill Cain's 9 Circles
Authors: Ibrahim Ghassan Awad
Published: December 2021

The research paper tackles difficult social problems such as raping and killing especially innocent people due to psychological diseases such as brutality and sadism which lead only to horrific consequences for both wrongdoers and victims. Poetic justice is a significant theme in all genres of literature since readers of any literary work expect that virtue is rewarded and vice is punished or in other words they expect good characters reap the fruit of what they previously sow of good deeds while bad characters deserve their disgraced destiny due to their malignant or bad deeds they have done before. In his masterpiece 9 Circles, Cain shows politics and its ways to impose its negative impact on the behavior of some people, prompting them to do evil attacks against others when he relies on a real story of an American soldier who tortures and kills not only some innocent people but also some animals for enjoyment.
Awareness of Students Regarding the Anti-Hazing Law in Nueva Ecija
Authors: Austria-Cruz Mary Chris , Hipolito Geena Baltazar
Published: December 2021

This study aimed to determine the awareness of the students of Nueva Ecija University of Science and Technology (NEUST), Philippines regarding Republic Act No. 8049 also known as Anti-Hazing Law. The researchers utilized the descriptive research to analyze data on the profile of the respondents which include their age, gender and religion. Tackled likewise were the provisions of the Anti-Hazing Law which the students were most aware of. The factors that affect the awareness and the possible reasons for their lack of awareness were also studied. This research contributes to the existing body of academic work by using descriptive data collected from 660 students of Nueva Ecija University of Science and Technology (NEUST). Questionnaire-checklist which consists of a number of items in a set format was utilized as main tool for collecting data. The findings of the study showed that the age ranges of the respondents are 18-21 years old implying their lack of understanding in the law’s provisions. The results also showed that the top three provisions of Anti-Hazing Law which the respondents were not aware of what section 2, 4a and 4b, respectively. Also, it was found out the top factor that affect the students’ awareness of the said law were their lack of understanding on the different provisions.
Overview of a Robotic Arm
Authors: Bakrewal Ayush
Published: December 2021

Abstract: Our project aims to increase the efficiency of industries and help to automate the manufacturing process and other day-to-day industrial activities. Right now automation is not that widespread among industries because of cost and other technical issues. We designed an industrial robotic arm. We have used specific materials to give long life and durability to the product. One of the most important motivations to design this product was to make it cost-efficient so that it can be used by small and medium enterprises who have left aside in competition. We have used high modulus carbon fibre, aluminium metal matrix composites, carbon fibre reinforced plastic, and aluminium foreign casting alloy 222. We have designed the model on fusion 360 software with appropriate dimensions. We have also looked carefully at the competitions which we are going to face in near future and have carefully planned the strategy to increase our market share slowly and steadily. Keywords: CAE Analysis, CAD, FMEA, TRIZ, NPD
HST Communication Network by Integration of Software-Defined Networking and Network Function Virtualization
Authors: Ch Arun Kumar.
Published: December 2021

Abstract: The new challenges introduced in the wireless communication systems by the rapid developments of high-speed trains (HSTs) and more usage of the smartphones. The smart transportation involves the large crowd with smart phones, that requires a more efficient network for communication without disconnection. To achieve that, the handover process, need to be done quickly with respect to the speed of the train. To sustain its session connectivity to the internet, it requires the disconnection from the current access point (APc) to the next access point (APn). IN this project, we use the open flow and open stack protocols for integrating the interface between the infrastructure and the controller. Along with this, the integration of software-defined networking and network function virtualization is also done. The project majorly concentrated on the modification of the routes of the packet flow from one access point to the next required access point with the use of the triggering signal from the train which gives the location of the train. The suggested method works by the transmitting the signal from train to the next access point in advance so that the SDN controller changes the path of the packets to the next access point. The parameters like Signal strength, packet loss, average delay, path delay is evaluated. Along with these parameters the energy dissipation near the network also evaluated. The experimental results are evaluated using MATLAB tool. Keywords: Network Function Virtualization, OpenFlow in SDN, OpenStack, Software Defined Network.
Modelling, FEA analysis and Optimization of Mono Composite Leaf Spring Using ANSYS
Authors: Parihar Abhyuday
Published: December 2021

Abstract: Conventional leaf spring made up of conventional materials like plain carbon steel are heavy and add weight to vehicle which reduces mileage. This necessitates new material which is light in weight and could provide adequate strength to leaf spring along with higher strain energy absorption to absorb shocks. The current research is intended to study the structural and vibrational characteristics of leaf spring made of P100/6061 Al, P100/AZ 91C Mg and structural steel materials. The investigation is carried out using ANSYS FEA software. The FEA results have shown that P100/AZ/ 91C generated lower stresses as compared to P100/6061 Al and structural steel material. The modal analysis of leaf spring aided to determine mass participation factor and mode shapes corresponding to each frequency. Keywords: Leaf Spring, Energy Absorption, Structural Steel Materials, ANSYS FEA, Frequency.
Feeding habits of Paralabrax nebulifer (Serranidae) during reproductive and non-reproductive seasons in an adjacent area to Magdalena Bay, Baja California Sur, Mexico
Authors: Ysla-Guzmán Julio Alejandro , Moreno-Sánchez Xchel Gabriel , Rosales-Velázquez Martín Oscar , Carrasco-Chávez Víctor , Ortíz-Galindo José Luis
Published: December 2021

The barred sand bass Paralabrax nebulifer is a commercially important fish off the west coast of Baja California Sur. To assess the diet of this species and variations as a function of sex and reproductive condition, 60 specimens were captured using traps during seven seasonal sampling trips from August 2016 to August 2018 in an adjacent area to Magdalena Bay, Baja California Sur, Mexico. The stomach contents of 50 specimens were obtained (23 males and 27 females). Sex was diagnosed by direct observation of the gonads. Based on the gonadosomatic index, hepatosomatic index, and histological analyses, the reproductive season of the barred sand bass was corroborated for August 2016, April, August, and September 2017, and August 2018, and the non-reproductive season was corroborated for November 2016 and March 2018. The Index of Relative Importance (IRI) was used to classify the main diet components, which comprised three fish species, seven crustacean species, and one mollusk species. According to the IRI, the South American pilchard Sardinops sagax and the red pelagic crab Pleuroncodes planipes were the prey that contributed the most (55%) to the barred sand bass diet. The ANOSIM showed that there were significant differences in the amount and type of prey consumed by sex; the SIMPER analysis revealed that the species contributing the most to differences between the sexes were S. sagax (16.58%), Euphylax dovii (15.95%), Stenocionops ovata (12%), and P. planipes (11.82%) for females. There were significant differences in the amount and type of prey consumed between types of reproductive season; the species contributing the most to differences between seasons were Anchoa spp. (27.76%), and P. planipes for non-reproductive season (22.67%), and S. sagax (11.08%) for reproductive season. The feeding strategy of the barred sand bass was that of a specialist carnivorous predator that fed mainly on the fish Sardinops sagax during the reproductive season, which supply the dietary nutritional requirements of the lipids HUFA (arachidonic acid, 20:4n-6; eicosapentaenoic acid, 20:5n-3; docosahexaenoic acid, 22:6n-3), nutrients required to achieve reproductive success.
Efecto de la sedimentación en la capacidad de adhesión y desprendimiento de la anémona de mar Anemonia alicemartinae (Cnidaria: Anthozoa) en sustratos duros
Authors: Villaseñor-Parada Cristóbal , Neill Paula E. , Jara-Rojas Luis
Published: December 2021

Anemonia alicemartinae es una especie criptogénica en la costa chilena, donde se comporta como invasora (i.e., aumenta su distribución a través del tiempo). Vive adherida a sustratos duros en sistemas intermareales y submareales someros desde el norte de Chile hasta la Bahía de Concepción. Al parecer, su reproducción es principalmente asexual, sin una fase larval, por lo que se ha propuesto que su dispersión ocurre mediante un mecanismo de desprendimiento y re-adhesión al sustrato, el cuál puede ser estimulado por condiciones bióticas y abióticas. En este trabajo se evaluó el efecto de la arena sobre dicho mecanismo de dispersión, para lo cual se instalaron colectores de sedimento en 14 puntos de muestreo, en la localidad de Lirquén, en el extremo sudeste de la Bahía de Concepción (el límite sur de distribución de esta especie en el Pacífico SE). Los resultados indicaron que la densidad de anémonas disminuye exponencialmente con la cantidad de sedimento, el cuál correspondió principalmente a arenas finas y medianas (i.e., entre 0,125 y 0,5 mm de diámetro). Experimentos realizados en laboratorio indican que anémonas adheridas a sustratos con mayor cantidad de arena tardan menos tiempo en desprenderse, mientras que aquellas adheridas a sustratos sin arena demoran el triple de tiempo en hacerlo. Los resultados sugieren que las anémonas podrían percibir la presencia de arena como condiciones poco favorables, estimulando el desprendimiento de los individuos en busca de hábitats más propicios. También se discute el rol de la arena en la dispersión de la especie a larga distancia.
Distribution and abundance of planktonic mollusks along a longitudinal gradient in the Southeastern Pacific off Chile
Authors: Campos Bernardita , Landaeta Mauricio F.
Published: December 2021

The objectives of this research were to estimate the abundance of the main groups of planktonic mollusks (meroplanktonic larvae, holoplanktonic gastropods and cephalopod paralarvae), and relate these groups to the physical-chemical water properties along a longitudinal gradient between Caldera, on the coast of mainland Chile, and the Easter Island ecoregion (Rapa Nui Island and Salas y Gómez Island), in the Southeast Pacific Ocean. Plankton samples were collected over the course of the CIMAR 21-Islas Cruise, from October to November 2015, at 33 oceanographic stations via vertical hauls of a WP2 net (180-µm mesh size) from a maximum depth of 300 m to the sea surface. Mollusks were sorted, counted and initially assigned to Class rank, later being identified to lower taxonomic ranks. Planktonic mollusks were obtained at all stations, and were composed of 92.7% of Gastropoda and 7.3% of Bivalvia. The total abundance of mollusks varied between 55 and 4,922 individuals 100 m-3.Euthecosomate gastropods exhibited the highest occurrence within the oceanic area. Meanwhile, no paralarvae were captured. Differences in the composition of planktonic mollusks between the continental and oceanic zones were evident. Bivalve larvae increased their abundance in warmer, salty and vertically mixed waters. These results are the first record of meroplanktonic mollusks in waters near the Chilean oceanic islands, and suggest that planktonic mollusks display spatial variation at the scale of the South Pacific Basin, which could be related to the hydrographic conditions and the water column structure.
Abundancia y ecología trófica del pez león, Pterois volitans, en el Parque Nacional Morrocoy, Venezuela, mar Caribe Sur
Authors: Figueroa-López Naily Nashira , Rodríguez-Quintal José Gregorio , Brante Antonio
Published: December 2021

La invasión del pez león, Pterois volitans, en la costa Atlántica de los Estados Unidos y el mar Caribe representa una amenaza al funcionamiento del ecosistema marino. En 2010 fue reportado por primera vez en las costas venezolanas, y en 2013 ya era común en zonas arrecifales. El objetivo del presente estudio fue evaluar la abundancia y la ecología trófica del pez león en el Parque Nacional Morrocoy, y comparar su abundancia con la de otras especies nativas. En 2013 se realizaron censos visuales y recolectaron especímenes en diferentes hábitats (arrecifes, praderas de fanerógamas y manglares) y estratos de profundidad (1-3 m, 6-9 m, 12-15 m). Los resultados mostraron una alta variabilidad en la abundancia, con una densidad promedio de 46,30 (± 42,31 DE) peces∙ha-1 en arrecifes, mientras que en praderas de fanerógamas y manglares no se observó la presencia de la especie. Su densidad no difirió entre estratos de profundidad y fue significativamente mayor a la de las especies nativas censadas (familias Muraenidae y Serranidae). Su dieta estuvo compuesta de peces y crustáceos, con una mayor proporción de peces en especímenes de mayor tamaño. Las familias de peces más abundantes dentro del parque, Labridae, Haemulidae y Gobiidae, formaron parte de su dieta. Dadas las características del pez león como depredador generalista, un aumento de su población posiblemente afectaría significativamente la abundancia de peces nativos de las familias más representadas en su dieta, y la estructura y funcionamiento de estos sistemas arrecifales.
Optimización del tratamiento térmico para la inducción al desove de Argopecten purpuratus (Mollusca: Bivalvia)
Authors: Dionicio-Acedo Jhon , Cabrera-Simon Alison , Rosado-Salazar Maryandrea , Aguirre-Velarde Arturo
Published: December 2021

Based on methodologies currently used in commercial hatcheries, four thermic treatments were compared to induce the gametes expulsion of Argopecten purpuratus. The treatments evaluated included: 1) gradual increase in temperature, 2) gradual decrease, 3) 5 °C thermal-shock, 4) 10 °C thermal-shock and 5) control at constant temperature 16 °C. After induction, the number of fertilized oocytes in each treatment was estimated. The results show that a gradual increase in temperature between 16 and 26 °C causes a significantly higher proportion of fertilized oocytes compared to other treatments.
Concentration and distribution of macrominerals in tissues of Mediterranean mussel Mytilus galloprovincialis exposed to Cd and Cd-mixtures
Authors: García-Navarro José A. , Vera-Sánchez Miguel A. , Romero Diego
Published: December 2021

Marine ecosystems are under great pressure due to heavy metals pollution, and mussels remain an important knowledge source in this regard. In this study, Mediterranean mussels (Mytilus galloprovincialis) were exposed for 7 days to Cd and three Cd-mixtures (Cd+Pb, Cd+Cu and Cd+Pb+Cu). The accumulation and tissue distribution of inorganic elements (Ca, K, Mg, Na, P and S, macrominerals) that are usually not taken into consideration in field studies on in bioassays were evaluated. Regarding concentration, the element which differed the most with respect to the control group was K, while Mg was the only one which showed no significant statistical difference with the control group. The group exposed to ternary mixture was the one in which there were more alterations in concentration and distribution of these macrominerals with respect to control, whereas in the group exposed to single Cd no significant differences in the concentration of these inorganic elements were found. The concentration and distribution of macrominerals in the compartments studied (digestive gland, gill and remaining soft tissues) is susceptible to the presence of Cd and heavy metal Cd-mixtures, with percentages of changes until 28.7%. Study results suggest that macrominerals composition in mussel tissues could be useful in studies of heavy metal contamination in marine ecosystems.
Hubungan Tingkat Penerimaan diri dengan Tingkat Kepatuhan Minum Obat Pasien Lupus di Yayasan Kupu Parahita Indonesia
Authors: Lestari Rizqinda Lailatul , Nasution Tina Handayani , Wibisono Ahmad Hasyim , Jannah Miftakhul , Widiyanti Ulfi Nur , Dewi Elvira Sari
Published: December 2021

Lupus is a chronic autoimmune disease that can become a bio-psycho-socio-economic-culture-spiritual burden for individuals because its complex treatment and management. Self-acceptance and adherence to medication are the keys in lupus management. Purpose of this study was to determine the relationship between self-acceptance level of lupus patients and their medication adherence level. The study was designed using a correlational study with a cross sectional approach. About 92 lupus patient respondents at Kupu Parahita Indonesia Foundation who went to the Saiful Anwar Hospital Malang were selected using purposive sampling according to inclusion and exclusion criteria. Respondents were asked to fill out a modified Acceptance of Illness questionnaire to measure patient self-acceptance level and the Morisky Medication Adherence Scale 8 (MMAS-8) to assess drug adherence level. From the 92 respondents, it was found that 37% had a high level of self-acceptance, 52.2% were moderate, and 10.8% were low. Adherence medication level in 92 respondents showed 51.1% high, 38.1% moderate, and 10.8% low. Spearman test results showed a significant relationship between self-acceptance level and medication adherence level (p=0.001, r=0.355). This value indicates the strength of the weak relationship and the direction of the positive correlation between self-acceptance and medication adherence. Conclusion, the higher of self-acceptance level of lupus patients, the higher medication adherence level.
The Role of Information for Consumers in The Digital Era (Indonesia Case)
Authors: NUGROHO Lucky
Published: December 2021

The development of technology during industrial revolution 4.0 is an inevitability. Therefore, this conceptual paper aims to analyze the influence of consumer information and knowledge in the digital era. The research method used is qualitative descriptive, namely conducting a literature review sourced from scientific articles and books related to the research object of this conceptual paper. Based on the research results on this conceptual paper, in today's digital era, consumer behavior has undergone significant changes where digital platforms have become a source of information for the public in making decisions. In addition, the information available on electronic social media can be received differently depending on the knowledge of the consumer.
Fen Bilimleri Motivasyon Ölçeği: Geçerlik ve Güvenirlik Çalışması
Authors: KAPLAN Ebru , BEKTAS Oktay , KARACA Melek
Published: December 2021

Bu çalışmanın amacı, ortaokul öğrencilerinin Fen Bilimleri dersine yönelik motivasyon düzeylerinin belirlenmesinde kullanılabilecek bir motivasyon ölçeği geliştirilmektir. Bu çalışma nicel araştırma desenlerinden taramaya dayalı yürütülmüş, çalışmanın örneklemini Kayseri ili Melikgazi ilçesindeki dördüncü bölge öğrenim gören 386 ortaokul öğrencisi oluşturmaktadır. Örneklem seçimi seçkisiz örnekleme yöntemine göre yapılmıştır. Bu çalışmada “Sosyal Bilişsel Teori” temel alınarak, öğrencilerin fen bilimlerine yönelik motivasyon düzeylerini belirlemek için ölçek geliştirilmiştir. Alanyazın taraması sonucunda oluşturulan 118 maddelik soru havuzundan 41 madde seçilmiş, 13 madde de yazarlar tarafından yazılarak taslak ölçeğe 54 maddelik son hâli verilmiştir. Ölçekte her boyuttan yeterli madde olması sağlanmış ve süreç boyunca iki fen eğitim uzmanının kontrolünden geçirilerek gerekli düzeltmeler yapılmıştır. Örneklem grubuna uygulanan taslak ölçeğin geçerlik ve güvenirlik analizleri yapılmıştır. Yapı geçerliği kapsamında, faktör analizleri yapılmıştır. Açımlayıcı faktör analizi sonucunda ölçeğin Kaiser-Meyer-Olkin değeri 0,95 olarak hesaplanmış toplam varyansın %59’unu açıkladığı belirlenmiştir. Faktör analizleri sonucu çıkarılan maddelerden sonra kalan 21 soru üzerinden güvenirlik analizi tekrarlanmış ve Cronbach güvenirlik katsayısı 0,93 olarak hesaplanmıştır. Sonuç olarak ortaokul öğrencilerinin fen dersine yönelik motivasyon düzeylerini belirlemek için hem araştırmacılar hem de öğretmenler tarafından kullanılabilecek geçerli ve güvenilir bir ölçme aracı geliştirilmiştir.
Spor Yöneticiliği Bölümü Öğrencilerinin Spor Hukuku Dersine Yönelik Görüşleri
Authors: SABAH Seda , ÇANKAYA Soner , ERMİŞ Aydan , ÇAKICI Hacı Ali , DERELİOĞLU Mehmet
Published: December 2021

Bu çalışmanın amacı, spor yöneticiliği bölümünde öğrenim gören öğrencilerin Spor Hukuku dersine yönelik görüşlerini ortaya koymaktır. Bu kapsamda çalışma nitel araştırma desenin bir çeşidi olan durum çalışması modelindedir. Çalışmanın örneklem grubunu Ondokuz Mayıs Üniversitesi Spor Yöneticiliği Bölümünde öğrenim gören 6 öğrenci oluşturmaktadır. Öğrencilerin Spor Hukuku ders sürecine ilişkin görüşlerini belirlemek amacıyla yarı yapılandırılmış (8 soru) görüşme formu hazırlanmıştır. Elde edilen veriler Nvivo programına aktarılmış ve betimsel analiz yöntemiyle çözümlenmiştir. Çözümlenen veriler sonucunda ortaya çıkan kodlar uygun temalara atanmış ve raporlaştırılmıştır. Çalışma sonucunda öğrencilerin; Spor Hukuku konusuna ilişkin yasal düzenlemeleri çoğunlukla takip etmedikleri, Spor Hukuku dersini yeterince önemsedikleri, üniversitede aldıkları Spor Hukuku derslerinin yeterli düzeyde verimli geçmediği, öğretim elemanlarının yeterli bilgiye sahip oldukları; ancak kendilerine aktarmada etkili olamadıkları şeklinde görüşlerinin olduğu tespit edilmiştir. Dolayısıyla öğrencilerin ders dışında Spor Hukuku’na ilişkin güncel gelişmeleri takip etmesi, öğretim elemanlarının ders işleme sürecinde öğrenci görüşlerini dikkate alması, gerekli görüldüğü takdirde ders saatlerinin arttırılması önerilmektedir.
Determinan Matriks Sirkulan Dengan Metode Kondensasi Dodgson
Authors: Fahlevi M R
Published: December 2021

One of the important topics in mathematics is matrix theory. There are various types of matrix, one of which is a circulant matrix. Circulant matrix generally fulfill the same operating axioms as square matrix, except that there are some specific properties for the circulant matrix. Every square matrix has a determinant. The concept of determinants is very useful in the development of mathematics and across disciplines. One method of determining the determinant is condensation. The condensation method is classified as a method that is not widely known. The condensation matrix method in determining the determinant was proposed by several scientists, one of which was Charles Lutwidge Dodgson with the Dodgson condensation method. This paper will discuss the Dodgson condensation method in determining the determinant of the circulant matrix. The result of the condensation of the matrix will affect the size of the original matrix as well as new matrix entries. Changes in the circulant matrix after Dodgson's conduction load the Toeplitz matrix, in certain cases, the determinant of the circulant matrix can also be determined by simple mental computation.
Peramalan Curah Hujan Di Kabupaten Parigi Moutong Menggunakan Model Seasonal Autoregressive Integrated Moving Average (SARIMA)
Authors: Purnama D I
Published: December 2021

Hujan merupakan fenomena alam yang sangat penting bagi kehidupan manusia. Hal ini membuat peramalan jumlah curah hujan di suatu daerah menjadi penting karena mampu mendukung proses pengambilan keputusan dalam berbagai sektor kehidupan. Dilain sisi perubahan iklim dunia membuat curah hujan seringkali susah diprediksi. Sehingga diperlukan identifikasi pola musiman pada data curah hujan sehingga mendukung peramalan curah hujan di suatu daerah. Tujuan dari penelitian ini adalah mengidentifkasi pola musiman serta menentukan model yang baik digunakan untuk meramalkan curah hujan di Kabupaten Parigi Moutong. Hasil identifikasi pola musiman mengggunakan regresi spektral menunjukkan bahwa data curah hujan di KabupatenParigi Moutong mengandung pola musiman. Selain itu diperoleh model Seasonal Autoregressive IntegratedMoving Average (ARIMA) terbaik untuk meramalkan curah hujan di Kabupaten Parigi Moutong adalah model SARIMA(1,1,0)(0,1,1)12. Model ini memiliki akurasi peramalan yang baik yang ditunjukkan dari nilai Mean Absolute Percentage Error (MAPE) sebesar 12,0157 pada data training dan 16,4647 pada data testing.
Peramalan Suku Bunga Acuan (BI-7 Day Repo Rate) Dengan Metode Fuzzy Time Series
Authors: Purwanti N R , Musdalifah S , Andri
Published: December 2021

BI-7 Day Repo Rate merupakan suku bunga kebijakan yang mencerminkan sikap atau stance kebijakan moneter yang ditetapkan oleh Bank Indonesia dan diumumkan kepada publik.  BI 7-Day Repo Rate  sangat mempengaruhi banyak sektor ekonomi, yang pada akhirnya dapat mempengruhi tingkat atau laju inflansi. Para pelaku ekonomi sangat memperhatikan BI-7 Day Repo Rate yang ditetapkan oleh Dewan Gubernur. Apabila suku bunga kebijakan yang ditetapkan oleh Dewan Gubernur tidak sesuai dengan tren kondisi ekonomi diwaktu tertentu maka akan berdampak negatif kepada kondisi ekonomi Indonesia. Hal inilah yang menyebabkan pentingya dilakukan peramalan BI-7 Day Repo Rate  dengan harapan para pelaku ekonomi dapat mengantisipasi dampak jangka panjang dari penetapan BI-7 Day Repo Rate ini. Metode yang digunakan dalam penelitian ini adalah fuzzy time series dengan model terbaik orde 15 dengan tingkat akurasi yang dihitung menggunakan MAPE sebesar . Metode fuzzy time series bekerja dengan menangkap pola dari data historis kemudian digunakan untuk memproyeksikan data yang akan datang. Hasil penelitian ini menunjukkan bahwa pergerakan tingkat Suku Bunga Acuan dari bulan Desember 2020 – Desember 2021  adalah rentang .
K-MEANS CLUSTERING FOR GROUPING INDONESIA UNDERDEVELOPED REGIONS IN 2020 BASED ON POVERTY INDICATORS
Authors: Resti Wahyuni
Published: December 2021

Poverty is still a problem in Indonesia, especially in underdeveloped areas. Underdeveloped areas are areas where the region and its people are less developed than other regions on a national scale. The classification of disadvantaged areas is determined by the president in the Presidential Regulation of the Republic of Indonesia Number 63 of 2020 concerning the Determination of Underdeveloped Regions of 2020-2024. Various policies need to be set by the government to overcome poverty in underdeveloped areas. Program planning strategies may be different for each region. Therefore, in order to achieve an optimal implementation of poverty alleviation programs, it is necessary to group the districts covered in underdeveloped areas in Indonesia based on poverty indicators. The data used is macro data from the characteristics of each region in disadvantaged areas obtained from regional publications in the figures for each district. From the results of the analysis of k means clustering formed three groups with different characteristics in each cluster. In cluster one, the focus of government policies is on employment and sanitation aspects, cluster two is on health, education, and employment aspects, cluster three is on all aspects because cluster three is the area with the highest percentage of poor people compared to the other two clusters. The high percentage of poor people is also followed by other poor aspects.
ANALYSIS OF SKIN DISEASE INFECTION AFTER THE PALU EARTHQUAKE USING BINARY LOGISTIC REGRESSION
Authors: Wahyuni Selvia Anggun , Lilies Handayani  , Muhammad Akriyaldi Masdin  , Salmia
Published: December 2021

The incidence of skin disease in Indonesia is still relatively high and is a significant problem. This is evidenced by the 2010 Indonesian Health Profile data which shows that skin and subcutaneous tissue diseases are the third rank of the 10 most common diseases among outpatients in hospitals throughout Indonesia. Skin disease is growing, as evidenced by data from the Indonesian Ministry of Health, the prevalence of skin disease throughout Indonesia in 2012 was 8.46%, then increased in 2013 by 9 %. Palu City is an area that has a high skin disease problem. According to the 2016 BPS of Palu City, skin diseases are among the top 10 diseases in Palu City with a total of 11,363 sufferers. The method used in this research is binary logistic regression. Based on the analysis that has been done, it can be concluded that the best model is formed as follows:. Based on the best model, it is found that the factors that influence the transmission of skin diseases after the Palu earthquake are genetic factors.
The The Effect of Concentration of Citric Acid Solution on Extraction of Pectin from Watermelon Albedo
Authors: Paramitha Tifa , Tika Paramitha
Published: December 2021

Watermelon albedo or the white flesh of watermelon rind contains pectin with high enough content. In this study was conducted the extraction of pectin from watermelon albedo by the liquid-solid extraction method. The citric acid solution was used as a solvent with concentrations varied by 4%, 7%, and 10%. The research steps include the pretreatment of raw material, the extraction, the posttreatment of extraction, and the analysis of pectin. The pretreatment aimed to reduce water content and reduce the size of raw material. The extraction process was the main process in which pectin dissolution occurred in the citric acid solvent. Furthermore, the posttreatment of extraction aimed to obtain pectin solid with the addition of ethanol. The final step was the analysis, including pectin yield, moisture content, methoxyl content, galacturonic acid content, and pectin functional group. Based on research obtained, an increase in the concentration of citric acid increased pectin yield, methoxyl content, and galacturonic acid content. The moisture content of pectin decreased with the increasing concentration of citric acid. Pectin yield, moisture content, methoxyl content, galacturonic acid content resulted from 10% concentration of citric acid solvent are 8.356%, 19.748%, 7.029%, and 69.048%, respectively. Based on FTIR analysis, the functional groups contained in pectin are hydroxyl group, methyl group, carbonyl group, and ether group. This functional groups are main constituents of pectin structure.
Kajian Kadar Akrilamida dalam Kopi Arabika dengan Variasi Suhu Penyangraian
Authors: Wardani Gatut Ari , Tuslinah Lilis , Saefatuzzahro Eva , Indra
Published: December 2021

Acrylamide levels in Arabica coffee at various roasting temperatures have been determined. Coffee beans are roasted at 160°C, 180°C, and 210°C for 8 minutes. Analysis was carried out using High-Performance Liquid Chromatography (HPLC) with C-18 reversed-phase, mobile phase using methanol and 0.1% phosphoric acid solution (5:95), flow rate 1 mL/min, UV-Vis detector 198 nm wavelength. Acrylamide levels in Arabica coffee are 160°C of 14.665 ppm, 180°C of 15.973 ppm, and 210°C of 18.501 ppm. Based on the results of the acrylamide content in Arabica coffee, the higher the roasting temperature, the greater the acrylamide content. ANOVA test regarding the normality test sig value of 0.637, 0.463, and 0.637 normally distributed. Based on the homogeneity test, it was found that the variation between groups was the same or homogeneous. The results of the ANOVA test stated that there were differences in the acrylamide levels of Arabica coffee in the roasting temperature difference group and the results of the post hoc Bonferroni test found that the average differences in the roasting temperature of Arabica coffee were significantly different 160°C-180°C and 160°C-210°C.
Is This Me?-Humanity's Wake-Up Call
Authors: Julia Fromm
Published: December 2021

The artist chronicles a beetle. Metamorphosing, transcending physical limitations into transcendental non-human existence, the artist moves over being kinematically shackled and bound by the imagined limits of the human mind. Within the perceptual cell, onomatopoeic expressions metamorphose into an unfettered call for change, albeit within the constrains of its actual existence.

A series of videos chronicles the metal framework, simultaneously concealing and revealing the process of alienation.​​​​​​​ Oblique perspectives on the adjacency in perception and spatial alienation come into the chronicler's gaze. 

The artist confronts her actual intentions-contrasting zones of the 'alienation of the self' and 'self-transformation' by an illustrative enhancement​​​​​, impelled as humanity's wake-up call, overcoming barriers and impediments, making decisions to transform and recount the tales of the ever-changing.
Global Value Chain: Islamic Economics and Finance Position
Authors: Pimada Laila Masruro
Published: December 2021

The growing number of Muslim populations promotes significant development on Islamic economic and finance activities called halal industry. While the halal industry is experiencing positive growth in the last four years, the Global Value Chain (GVC) – the chain of system that drives international trades and global economic activities – remains stagnant. The present study aims to explain the position of the Islamic economics and finance in the GVC. This study employs a qualitative-descriptive method with systematic literature review approach. By collecting secondary data using strict-processing stages and content analysis techniques, the author manages to meet the study’s purpose. The findings suggest that the Islamic economics and finance have opportunities to boost countries' participation in the GVC activities by harmonizing halal standardization, enhancing financial infrastructures, and providing various financial products. This study contributes to generate government policies and enterprises' decisions in developing the Islamic economics and finance within the GVC framework. It further provides initial insights and potential topics for future studies.
Stress and Job Performance of Healthcare Workers amidst COVID-19 Pandemic: The Mediating Role of Burnout
Authors: Agustina Tri Siwi , Rarastanti Putri Dian , Hidayat Arif Fatah
Published: December 2021

Healthcare workers in hospitals are one of the frontliners in handling the COVID-19 issue. However, previous studies were mostly directed on doctors and nurses, albeit many other workers are involved in managing the COVID-19 issue at a hospital. Physical and mental work pressures in performing their jobs and responsibilities potentially affect their performance. This study aims to shed some light on the direct influence of job stress on the job performance of healthcare workers during the COVID-19 pandemic with burnout as a mediating variable. This study make use of a cross-sectional approach by employing a questionnaire to gather the data from 194 healthcare workers at Aisyiyah Ponorogo General Hospital Indonesia. Drawing on the Structural Equation Modeling Partial Least Square, the results reveal that (1) job stress has a negative influence on the job performance of the healthcare workers, (2) job stress is proven to have a positive effect on the burnout of the healthcare workers, and (3) burnout is found to partially mediate the effect of job stress on the job performance of the healthcare workers. By referring to the compelling results, valuable suggestions are offered to the hospital managers and further related studies. This study’s results further contribute to providing recommendations for the hospital management as well as the government concerning on factors affecting the healthcare workers’ job performance, especially at the age of a crisis such as the COVID-19 pandemic.
The Determinant of Indonesian Stock Returns’ Volatility: Evidence from Islamic and Conventional Stock Market
Authors: Indarwati Septiana , Widarjono Agus
Published: December 2021

Islamic stock market is apparently different from the conventional stock market due to the prohibition of unlawful goods and excessive risk-taking behavior. This study explores the extent to which the Indonesian Islamic and conventional stock returns' volatility responds to the macroeconomic indicators. This study employs Jakarta Islamic Index (JII) and Indonesian Stock Exchange (IDX) and uses monthly time-series data covering 2001: M1 - 2019: M12. The volatility of stock returns is measured using Generalized Autoregressive Conditional Heteroskedasticity (GARCH). By employing the Autoregressive Distributed Lag Model (ARDL), the results validate the evidence of the long-run relationship between the stock market's volatility and macroeconomic variables. A rising in money supply and an economic upturn reduce the volatility of conventional stock returns but only an expansionary money supply diminishes the volatility of Islamic stock returns. Conversely, high inflation and sharp depreciation of the Rupiah boost the stock returns' volatility. The results further show an interesting finding that the Islamic stock market's volatility is more responsive to changes in macroeconomic indicators than the volatility of their counterpart conventional stock market. Policymakers should take strict rules during the worst economic conditions to minimize the negative impact of the instability of macroeconomic variables.
Atypical localization of demodicosis after COVID-19 infection.
Authors: Lahouel Ines , Mabrouk Randa Said El , Hadhri Rim , Youssef Monia , Belhadjali Hichem , Zili Jameleddine
Published: December 2021

Since its outbreak in December 2019, a consistent number of case reports
have been published describing a complex spectrum of skin manifestations
associated with COVID-19. We report a first observation of demodicidosis
of the scalp after a severe acute respiratory syndrome coronavirus 2
(SARS-COV-2) infection.
A Systematic Review of Neuropsychological Studies Confirms that Adequate Folinic Acid Rescue Prevents Post Methotrexate Neurotoxicity
Authors: Sadeh Michelle , Toledano Helen , Cohen Ian
Published: December 2021

A comprehensive literature search was performed of all databases of the
Web of Science Citation Index, during 1990-2020, for the terms:
neuropsychological, neurocognitive, cognitive, acute lymphoblastic (and
lymphocytic) leukemia, and osteogenic sarcoma, to see if there was
evidence of a correlation between folinic acid (FA) rescue inadequacy
and long-term cognitive damage. All English language, peer-reviewed
articles of neuropsychological assessments of children who had been
treated with high-dose methotrexate without irradiation, and which
included details of methotrexate and FA schedules, were selected. Four
groups of studies were found and analyzed, Those with no evidence of
cognitive deterioration, Those with evidence of cognitive deterioration,
studies with more than one protocol grouped together, preventing
separate analysis of any protocols, and those with significant serious
methodical problems. In all studies, protocols without evidence of
cognitive deterioration reported adequate FA rescue, and those with
evidence of cognitive deterioration reported inadequate FA rescue.
Neonatal Outcomes of Maternal Alloimmunization to Red Blood Cell Antigens
Authors: Sgro Jonathan , Jegathesan Thivia , Campbell Douglas , Pavenski Katerina , Baker Jillian
Published: December 2021

We conducted a retrospective chart review of ten years of mother-neonate
dyads at our centre with RBC mismatch to describe the type and frequency
of maternal red blood cell (RBC) alloantibodies in our centre and
newborn outcomes. Half of the 300 mother-neonate pairs had a total of
173 clinically significant maternal RBC alloantibodies. Rh antibodies
were the most common, accounting for 67% (Anti-D accounting 10%) and
thus continue to be the most prevalent clinically significant antibodies
detected in maternal patients. Neonates born to women with all types of
Rh alloimmunization were shown to require interventions to treat HDFN,
including readmission.
Solitary cecal ulcer - case report and treatment options according to literature review
Authors: Kunkin Vanja , Ognjenovic Aleksandar
Published: December 2021

Introduction. Solitary cecal ulcer is a benign and extremely rare disease, as
less than 300 cases have been reported so far. The etiology is unknown, and
it can be diagnosed by pathohistological examination. Often presented as an
acute abdomen and rectal bleeding, it can mock various important and urgent
conditions. Treatment protocol is not defined. Extensive and radical
surgeries are often performed due to this benign disease mimic. Our aim was
to indicate this disease, present the treatment of this rare condition, and
to facilitate the treatment plan for this disease. Case outline. Female,
aged 67, was admitted to the Emergency Department with a clinical
manifestation of acute appendicitis. Emergency surgery was indicated after
following diagnostic tests. The intraoperative finding revealed an ulcer on
the cecum, which was sutured. The patient fully recovered, and subsequent
colonoscopy and pathohistological findings indicated a solitary ulcer.
Conclusion. It is possible to treat this condition by retaining the organ
and avoiding major surgery. Therefore, it is our opinion that it might
provide significant assistance to clinicians in a similar situation. Hence,
it is undoubtedly an interesting case for archiving, especially since such a
case has not been recorded in our country yet.