bluuebunny/crossref_metadata_2025 huggingface dataset:
CFD Simulation of Air-Piloted Downdraft Gasification Process: A Comparative Study Between Coal and Palm Kernel Shell as Feedstock
Authors:   Universiti Tun Hussein Onn Malaysia, Mohd Dali ohd Amirul Mukminin , Abd Rashid Razlin ,   Universiti Tun Hussein Onn Malaysia, Ishak Izuan Amin ,   Universiti Tun Hussein Onn Malaysia, Mohd Salleh Zuliazura ,   Universiti Tun Hussein Onn Malaysia, bin Madon Rais Hanizam ,   Universiti Tun Hussein Onn Malaysia, Ishak Mohammad Zulfikar ,   Els Energy and Lab Solutions Sdn Bhd, Samiran Nor Afzanizam ,   Universiti Tun Hussein Onn Malaysia
Published: October 2023

A fixed bed downdraft gasifier model based on computational fluid dynamic (CFD) framework was developed to investigate the influence of feedstock (palm kernel shell [PKS] and coal) on the quality of syngas produced via the gasification process. Euler–Euler approach was utilized in this study to describe the gas and solid phases. Realizable k-ε turbulence model was used to evaluate the constitutive properties of the dispersed phase and the gas phase behavior. This simulation model was validated by comparing the syngas composition of gasification simulation of coal with previous research, which yielded the overall accuracy result of 83.2%. This study also highlighted that PKS gasification produced 53.74% and 90.51% higher composition of H2and CO respectively as compared to coal gasification. Whereas coal gasification produced 81.35%, 71.31% and 52.29% higher composition of CH4, H2O and CO2respectively as compared to PKS gasification. Hence, PKS produced 66.2% higher combustible gas of H2and CO than coal. PKS is thus considered as a potential renewable feedstock for gasification process as an alternative to the non-renewable coal. In addition, PKS gasification produced 52.29% lesser composition of CO2as compared to coal gasification.
Effect of Frequency on Heat Spread by Interstitial Hypertemia Treatment Method for The Treatment of Sarcoma Tumors
Authors:   Brawijaya University, Wahyudi Slamet , Setyarini Putu Hadi ,   Brawijaya University, Kretapaswakara Isa Tan ,   Brawijaya University
Published: October 2023

Frequency is a thing to calculate a wave. In biomedical science, frequency plays an important role in delivering heat as in bioheat transfer. In bioheat transfer studies, heat transfer in the human body can be used as one way of treatment such as therapy. At high temperatures that are usually above 40oC, the cell will die and cannot develop again this is called hyperthemia therapy. This therapy is commonly used in medicine with the function to kill tumor cells. There are 3 differences in hyperthemia therapy there are external, cavity and intersitital and interstitial hyperthermia therapy has better healing ability because heatis directly delivered to the tumor tissue to minimize tissue that no tumor is exposed to therapeutic temperature (40-46oC). Then the author will conduct a study with an analysis of heat transfer carried out on five layers of the human body, namely the epidermis, dermis, fat, muscle, and bones by applying the interstitial method of hyperthermia therapy and influenced by frequencies with a value of 434; 915; 2450 MHz completed using finite element method with unsteady state conditions in two axial dimensions. This study showed that frequency affects the value of temperature distribution in the five layers of the body. The greater the frequency value given, the more easily distributed the temperature will be because the frequency will provide greater electromagnetic waves if the frequency is increased.With interstitial hyperthermia would be optimize the therapeutic temperature more stable because of the needle as the media of the heat transfer. The methods of the interstitial treatment research areinsert the needle to the sarcoma hand tumor. This look very simple but need more preparation like, voltage, frequency, measure the metabolic and blood perfusion of the patient and made a analytics measure to do the treatment. The result of the research is heat that spread by interstitial hyperthermia are stable at 40-46oC which is the therapeutic temperature of tumor treatment,and the temperature will be increase with upgrade the power input of the source and the frequencies. The research has a conclusion that interstitial hyperthermia on sarcoma tumor especially on hand tumor sarcoma is effectively because the heat is spread well on the tumor at therapeutic temperature and frequencies that applied in this research is optimal for the treatment because it could keep the temperature steady on around 40-46oC.
Current THD and Output Voltage Ripple Characteristics of Flyback PFC Converters with LED Lamp and Nonlinear RL Loads
Authors:   Universiti Tun Hussein Onn Malaysia, Ponniran Asmarashid , Romai Noor Mohamad Kamil ,   Universiti Tun Hussein Onn Malaysia, Hamdan Nur Afiqah ,   Universiti Tun Hussein Onn Malaysia, Vajravelu Ashok ,   Universiti Tun Hussein Onn Malaysia, Islam Syed Zahurul ,   Universiti Tun Hussein Onn Malaysia, Abd Rahman Ramhuzaini ,   Universiti Tun Hussein Onn Malaysia, Eh Kan Chessda Uttraphan ,   Universiti Tun Hussein Onn Malaysia, Choon Chew Chang ,   Universiti Tun Hussein Onn Malaysia
Published: October 2023

This study analysedthe characteristics of total harmonic distortion (THD) and output voltage ripple in a flyback PFC converter circuit under two different loads, which are the LED lamp modules and nonlinear RL loads. The converter was designed to step down the AC input voltage (90 V-265 V) to a DC output voltage of 80 V DC for both loads, each with an output power of 16 W. The main objectives were to observe and assess current THD and output voltage ripple for both loads using two different capacitances of the output capacitor, which are 2400 μF and 6 μF, respectively. The results demonstrated that using smaller capacitors(6 μF), it increased output voltage ripple, which it increased for the LED lamp load from 10% to 25% and for the nonlinear RL load it increased from 15% to70%. However, with the same smaller capacitors (6 μF), it reduced current THD for both loads, which for the LED lamp load it reduced from 12% to 10.3%, and for the nonlinear RL load it reduced from 13.7% to 8.3%. From these results, with 2400 μF of the output capacitor, it provided better performance in terms of current THD and output voltage ripple for both load types.
Comparative Analysis of Techniques Used to Detect Copy-Move Tampering for Real-World Electronic Images
Authors:   Institute of Engineering & Technology, Tripathi Esha , Kumar Upendra ,   Institute of Engineering & Technology, Tripathi Surya Prakash ,   R R Institute of Modern Technology
Published: October 2023

Evolution of high computational powerful computers, easy availability of several innovative editing software package and high-definition quality-based image capturing tools follows to effortless result in producing image forgery. Though, threats for security and misinterpretation of digital images and scenes have been observed to be happened since a long period and also a lot of research has been established in developing diverse techniques to authenticate the digital images. On the contrary, the research in this region is not limited to checking the validity of digital photos but also to exploring the specific signs of distortion or forgery. This analysis would not require additional prior information of intrinsic content of corresponding digital image or prior embedding of watermarks. In this paper, recent growth in the area of copy-move tampering identification have been discussed along with benchmarking study. In this study, three combination of methods like discrete cosine transform with Fast K-Means, discrete wavelet transform with Fast K-Means and discrete cosine transform with Fuzzy-C means can efficiently locate duplicated regions with quantitative parameter i.e. 92%, 83% and 92% respectively. With variety of methodologies and concepts, different applications of forgery detection have been discussed with corresponding outcomes especially using machine and deep learning methods in order to develop efficient automated forgery detection system. The future applications and development of advanced soft-computing based techniques in digital image forgery tampering has been discussed.
Simplified Model Predictive Current Control for Surface- Mounted Permanent-Magnet Synchronous Motor Drives with Adaptive Duty Modulation
Authors:   Isabela State University, Agustin Crestian Almazan
Published: October 2023

Parameter control and cost minimization are among the significant aspects of model predictive current controllers. However, with the conventional control scheme of fixed switching vector actuation, susceptibility to uncontrolled current ripples remains a primary concern. This paper presents a simplified approach of model predictive current controller baed on adaptive duty modulation for the surface-mounted permanent-magnet synchronous motor (SPMSM). In this method, the implementation of two successive synthesized voltage vectors adopts the adpative soft-switching combination in each control period. Experimental results validate performance improvement and optimize current predictive accuracy.
Linear and Non-Linear Predictive Models in Predicting Motor Assessment Scale of Stroke Patients Using Non-Motorized Rehabilitation Device
Authors:   Universiti Tun Hussein Onn Malaysia, Mazlan Sulaiman
Published: October 2023

Various predictive models, both linear and non-linear, such as Multiple Linear Regression (MLR), Partial Least Squares (PLS), and Artificial Neural Network (ANN), were frequently employed for predicting the clinical scores of stroke patients. Nonetheless, the effectiveness of these predictive models is somewhat impacted by how features are selected from the data to serve as inputs for the model. Hence, it's crucial to explore an ideal feature selection method to attain the most accurate prediction performance. This study primarily aims to evaluate the performance of two non-motorized three-degree-of-freedom devices, namely iRest and ReHAD using MLR, PLS and ANN predictive models and to examine the usefulness of including a hand grip function with the assessment device. The results reveal that ReHAD coupled with non-linear model (i.e. ANN) has a better prediction performance compared to iRest and at once proving that by including the hand grip function into the assessment device may increase the prediction accuracy in predicting Motor Assessment Scale (MAS) score of stroke subjects. Furthermore, these findings imply that there is a substantial association between kinematic variables and MAS scores, and as such the ANN model with a feature selection of twelve kinematic variables can predict stroke patients' MAS scores.
Standalone Photovoltaic Power Stabilizer Using Double Series Connected Converter in Sudden Cloud Condition
Authors:   Airlangga University, Delfianti Rezi , Mustaqim Bima ,   Institut Teknologi Sepuluh Nopember, Afif Yusrizal ,   Airlangga University
Published: October 2023

Renewable energy is clean energy that cannot harm the environment in its way, especially on standalone photovoltaic electricity generation. The only problem with renewable energy electricity generation is the intermittency and its instability in power quality and power efficiency. Power system stability in renewable energy is essential during the real environmental case problem such as the sudden cloud. The sudden cloud, known for its ability to decrease solar irradiance input, depends on how thick and big the cloud is. Several attempts had been tried to increase renewable energy power system stability, including modifying its maximum power point tracker with a new algorithm such as perturb and observe. This paper discussed an improved way of maintaining renewable energy power system stability using perturb and observe Algorithm in a double series-connected Converter as the current and power stabilizer. The results show that the current overshoot has decreased by 65,336%, and the current sudden cloud undershoot decreased by 10,529%. Power overshoot also decreased by 43,685%, and the power of sudden cloud undershoot has decreased by 7,133%.
Optimal Energy Scheduling in Smart Buildings with Electric Vehicle and Demand Response
Authors:   Islamic Azad University, Zadeh Dariush Rashidi , Derkhshan Ghasem ,   Islamic Azad University, Hakimi Seyed Mehdi ,   Islamic Azad University, Abdi Babak ,   Islamic Azad University
Published: October 2023

In a number of countries, smart microgrid (SMG) technology is being exploited in the energy system infrastructure along with other generators such as electric and storage systems. In the framework of SMGs, communication links between generation and demand sides have been established to optimise energy consumption by means of economic signals. The framework of energy management for Smart Home appliances is presented in the present paper, taking account of appliance and electric vehicle participation. The approach to the energy schduling at day-ahead is defined as three strategies, such as optimum use of existing appliances, optimal production of electricity resources and optimal discharge and charging for electrical vehicles. Reducing energy generation costs and minimizing emissions of air pollutants are key objectives. Two case studies with the aim of reducing costs and emissions while maximizing system flexibility are taken into account to demonstrate preference and viability of home energy scheduling.
Trend Analysis of Tides Level and Projection Sea Level Rise On the West Coast of Peninsular Malaysia
Authors:   Universiti Tun Hussein Onn Malaysia, Md Ali Zarina , Tan Lai Wai ,   Universiti Tun Hussein Onn Malaysia, Ahmad Noor Aliza ,   Universiti Tun Hussein Onn Malaysia, Musa Sabariah ,   Universiti Tun Hussein Onn Malaysia
Published: October 2023

Globally, sea levels are rising due to climate change caused by humans. Current and future sea level rise will have a variety of effects, particularly on coastal infrastructure. This study analysed the tidal level trend and projected sea level rise along the western coast of peninsular Malaysia using tide level records collected between 1986 and 2012. The seasonal Mann-Kendall test and linear trend were used to determine the tide level trend over time and to predict sea level rise for 2050 and 2100. Based on a confidence interval of 95%, the results of the analysis indicated a rising trend at all stations. Tau values for the Mann-Kendall test range between 0.16 and 0.33, while seasonal Mann-Kendall values range between 0.18 and 0.41. Based on the sea level projection analysis, the mean sea level will rise between 8.77 cm and 14.29 cm in 2050, and between 20.44 cm and 33.20 cm in 2100. In conclusion, the sea level trend at all stations on the west coasts of peninsular Malaysia exhibits an upward trend.
Rectification of Sabah Stilt House Using Shear Wall Subjected to Earthquake
Authors:   Universiti Malaysia Sarawak, Rashidi A. , Abdullah A. A. ,   Universiti Malaysia Sarawak, Safawi M. I. ,   Universiti Malaysia Sarawak, Harith N. S. H. ,   Universiti Malaysia Sabah
Published: October 2023

A moderate earthquake with 6.0-magnitude hit Sabah in 2015 especially in Ranau, Sabah has been labelled as one of the most powerful earthquakes ever in Malaysia. Numerous buildings in Sabah have become defective with the severity level of damages as absolute (non-repairable) in the RC beam-column joints and soft-storey structures. Seismic design and construction requirements were not considered in most buildings in Sabah. Hence, this research is to investigate how to mitigate the effect of earthquake on the low-rise building using a more practical and economical method. A stilt house model is developed using ABAQUS software to determine the behaviour of the stilt, low-rise building subjected to earthquake by constructing shear wall at the short columns support. There are 4 models constructed namely, frame model without shear wall (W1), with shear wall of 100mm (W2), 300mm (W3) and 500mm (W4). The results of seismic response are evaluated and compared. Different length of shear wall affects the displacement and stress of the frame model. As shear wall length increases, the displacement, stress at columns and stress at walls decreases. Thus, adding a shear wall can be used to retrofit stilt houses and a credible way to mitigate damage due to earthquake load for new houses along hill slopes
Addition of probiotic EM-4 with different concentrations in cultivation media on the growth and survival rate of freshwater pomfret fish (Colossoma macropomum)
Authors: Muhammad Ilham Fasya  , Nanda Diniarti  , Lumbessy Salnida Yuniarti
Published: October 2023

This study aims to analyze the addition of EM-4 probiotics with different concentrations to the cultivation media on the growth and survival of freshwater pomfret fish (C. macropomum). This research was carried out for 50 days at the Fish Production and Reproduction Laboratory, Aquaculture Study Program, Faculty of Agriculture, Mataram University. The method used was an experiment using a Completely Randomized Design (CRD) consisting of 4 treatments and three replications, namely without the addition of probiotics or control (P1); probiotic EM-4 0.5 ml/L (P2); probiotic EM-4 1.5 ml/L (P3); and probiotic EM-4 2.5 ml/L (P4). Test parameters include absolute weight, absolute length, specific growth rate, survival rate, feed conversion ratio, feed utilization efficiency, air quality, and bacterial density. Data analysis used analysis of variance (ANOVA) at a confidence level of 95%. If the research results show significant differences, further tests use the Duncan Multiple Range Test (DMRT). The research showed that adding EM-4 probiotics to the rearing media at different concentrations could significantly affect (p<0.05) fish survival rate, absolute weight, specific growth rate, feed conversion value, and feed utilization efficiency. The treatment of adding EM-4 probiotics to the maintenance media with a concentration of 1.5 ml/L of air provides the best value for survival rates, growth, FCR, and EPP. It can maintain the quality of the cultivation media in good condition for the growth of freshwater pomfret (C. macropomum).
PROPOSTAS AVALIATIVAS DURANTE O ENSINO REMOTO EM ENFERMAGEM: FACILIDADES E APROVEITAMENTO NA PERSPECTIVA DOS ACADÊMICOS
Authors: FREIRE MIRANDA ANGELIM AGRA ARY WITTOR , De Castro Bezerra Filho Cristhiano Charles , Xavier Silva João Paulo , Lucena Bezerra de Oliveira Maryldes , Freire da Costa Agra Dallila , De Sá Agra Gleice , Ferreira Angelim Yalle
Published: October 2023

Objetivo: Elucidar as perspectivas da formação em enfermagem no ensino remoto durante a pandemia, sob a ótica dos discentes, no que concerne aos processos avaliativos. Metodologia: pesquisa empírica, de abordagem qualitativa e caráter descritivo-exploratório desenvolvida entre os meses de março e julho de 2022 com 13 acadêmicos de enfermagem de uma Instituição de Ensino Superior privada no interior do estado do Ceará. Para a coleta, utilizou-se uma entrevista semiestruturada e analisaram-se os dados por meio da análise categorial temática. O Comitê de Ética e Pesquisa aprovou esse estudo sob número 5.256.874. Resultados: Salientou-se que esse período e as propostas desenvolvidas expressaram-se enquanto uma questão problema para o processo formativo profissional e individual dos estudantes, à medida que a modalidade avaliativa desenvolvida não engajou ou, cativou, suficientemente, os estudantes a se programarem para prováveis avaliações. Assim, consideram-se ausência da estruturação de vigilância dos ambientes de sala de aula, disponibilidade de acesso pleno a fontes de consultas e grupos de respostas como problemáticas para o processo avaliativo, simbolizando um método equivocado de avaliação. Considerações finais: Infere-se que é necessária a construção de práxis educativa e avaliativa que ressaltem não somente um valor quantitativo, mas, sobretudo, o valor da participação complementar ativa dos estudantes em sua formação epistêmica e profissional, expressando o valor humano em aprender para a concretude dos aspectos plurais dos indivíduos. Destarte, conquanto o modelo híbrido tenha apresentado problemas, especialmente na questão avaliativa, significou um novo horizonte de desdobramentos paradigmáticos e atitudinais para o ensino-aprendizagem e para os sujeitos envolvidos.
Erratum to: Surface Emitting Quantum-Cascade Lasers with a Second-Order Grating and Elevated Coefficient of Coupling
Authors: Babichev A. V. , Kolodeznyi E. S. , Gladyshev A. G. , Kharin N. Yu. , Petruk A. D. , Panevin V. Yu. , Voznyuk G. V. , Mitrofanov M. I. , Slipchenko S. O. , Lyutetskii A. V. , Evtikhiev V. P. , Karachinsky L. Ya. , Novikov I. I. , Pikhtin N. A. , Egorov A. Yu.
Published: October 2023

An Erratum to this paper has been published: https://doi.org/10.3103/S1062873823350022
Extraction of Mn and Cr from secondary wastes of metallurgical plants by gas-phase conversion in nitriding media
Authors:   IPCE RAS, Kulyukhin Sergey , Nevolin Yurii , Seliverstov Alexandr
Published: October 2023

An approach based on gas-phase treatment of secondary waste in the atmosphere of HNO3(steam)—air or NOx—H2O(steam)—air followed by leaching Mn and Cr by water is proposed for the extraction of Mn and Cr from secondary waste from metallurgical plants (fly ash from the «Norilsk Combine» processing plant and the dumps of the «Punda Gourda» nickel plant of the Cuban state company «Commercial Caribbean Nickel»). It is shown that the pretreatment of secondary waste in a nitrating atmosphere at a temperature of 400—425 K for 5 hours allows one to leach Mn from the volume of secondary waste. For the fly ash of the «Norilsk Combine» processing plant and the dumps of the «Punda Gourda» nickel plant of the Cuban state company «Commercial Caribbean Nickel», the degree of Mn extraction by water does not exceed ~35% and ~65% of their total content in waste, respectively. The degree of Cr extraction does not exceed ~2% in all cases.
Pemberdayaan Panti Asuhan Yatim Budi Mulya di Kabupaten Banyuwangi Melalui Budidaya Ikan Lele Dumbo Sistem Akuaponik
Authors: Lailatul Lutfiyah  , Rijal Fakrudin Permana  , Muhammad Novi Yusuf
Published: October 2023

Panti asuhan merupakan suatu lembaga sosial untuk membentuk perkembangan anak-anak yang tidak memiliki keluarga atau tidak tinggal bersama keluarganya. Panti asuhan mempunyai tanggung jawab untuk memberikan pelayanan kesejahteraan sosial dan mental. Pada kenyataanya banyak panti asuhan yang masih terkendala terkait biaya operasional dalam melakukan pengembangan pembinaan anak-anak panti. Sistem akuaponik merupakan gabungan teknologi budi daya ikan dan tanaman dalam satu wadah.  Budidaya ikan lele dumbo dengan sistem akuaponik merupakan solusi alternatif dalam menunjang kemandirian panti asuhan. Tujuan yang  diharapkan  dari  kegiatan  ini  adalah adanya kegiatan usaha budidaya ikan di Panti Asuhan Yatim Budi Mulya Banyuwangi sehingga menjadikan kemandirian panti secara ekonomi semakin cepat terwujud. Fasilitas sistem akuaponik telah dibangun dan dihibahkan kepada mitra dan kemudian dilakukan kegiatan pengenalan sistem budidaya akuaponik terdiri dari cara pembuatan akuaponik dan komoditas yang dibudidayakan, sistem budidaya dan manajemen budidaya serta monitoring kegiatan budidaya. Metode sosialisasi dan diskusi dengan menggunakan daring platfom zoom. Evaluasi pelaksanaan program akuaponik dilakukan sebelum dan sesudah kegiatan. Data yang diperoleh kemudian disajikan dalam bentuk grafik serta dianalisis secara deskriptif. Kegiatan budidaya ikan lele dumbo sistem akuaponik dapat diaplikasikan pada lokasi mitra. Guna menunjang kemandirian panti asuhan,sehingga mampu mendapatkan penghasilan secara mandiri.
An Investigation of the Meniscus Height on the Outside of Circular Glass Cylinders
Authors: Fan Gordon
Published: October 2023

Surface tension between liquid and solid interface has important applications in detergent formulation, paintoptimization, oil recovery, pharmaceutical compound performance, and food products stability. One wayto examine the effect of surface tension is to check the adhesion between liquid and solid interface, a phe-nomenon governed by the Young-Laplace equation. The meniscus height within a thin circular cylinder canbe derived trivially by assuming a spherical meniscus surface relevant to the capillary phenomenon. Themeniscus height on the outside of a cylinder has no known closed form solution due to the elliptical natureof the differential form of Young-Laplace equation. In this paper, we discuss meniscus height calculationinside and outside of the cylinder and show our results from both experiments and numerical calculation. Inparticular we show a novel method of computing the meniscus height numerically by solving the Laplace-Young equation using a split boundary condition approach.
Peran Pemimpin Agama Berbasis Wawasan Pluralisme Dalam Merawat Toleransi Beragama Di Indonesia
Authors: Immawan Syafrinda
Published: October 2023

Artikel ini bertolak dari sebuah realita mengenai adanya kasus-kasus konflik hingga tindakan kekerasan dengan motif agama di Indonesia. Sikap intoleran semakin dirasakan oleh penganut agama tertentu, misalnya penolakan pendirian rumah ibadah meskipun persyaratan sudah terpenuhi, perasaan terganggu dengan aktifitas ibadah pemeluk agama lain, timbulnya pernyataan bermuatan fanatik sempit terhadap perayaan hari besar agama tertentu, terjadinya ujaran kebencianbahkan penistaan agama. Ternyata di tengah kasus konflik dan intoleran tersebut, pemuka agama juga turut terlibat. Oleh karena itu, penulis bertujuan untuk mengembangkan sebuah ide tentang peran pemimpin agama merawat kerukunan antar umat beragama di Indonesia, yaitu dengan memperkuat toleransi berbasis wawasan pluralisme. Penelitian ini mengacu pada berbagai sumber literatur antara lain buku, artikel, jurnal dan mengamati peristiwa di sekitar kerukunan beragama. Untuk membangun toleransi berwawasan pluralisme, maka pemuka agama dapat membuat seminar bertajuk pluralisme, pancasila dan gagasan yang menjaga kerukunan serta keutuhan bangsa. Selain itu pendidikan agama yang memadai bagi pemuka agama dapat mempengaruhi sikap terhadap realitas masyarakat majemuk, terutama pluralitas agama. Sehingga semakin dalam wawasan pluralisme pemimpin agama beserta penganutnya, maka semakin baik tingkat toleransidi Indonesia.
Toleransi dalam Perbedaan Suku dan Budaya: Bahaya Anti-Toleransi yang Mengancam Masyarakat
Authors: Mesa Yubi Djolu
Published: October 2023

Artikel ini membahas bahaya dari sikap anti-toleransi terhadap perbedaan suku dan budaya dalam masyarakat. Anti-toleransi dapat memicu konflik sosial, diskriminasi, pengucilan sosial, serta menghambat pertumbuhan ekonomi dan integrasi masyarakat. Selain itu, hal ini dapat menyebabkan kehilangan warisan budaya dan menghambat peluang belajar. Oleh karena itu, promosi toleransi dan keragaman suku dan budaya menjadi kunci untuk membangun masyarakat inklusif dan harmonis di dunia yang semakin terhubung.
ANTI KEKERASAN SEKSUAL DI KAMPUS
Authors: SAJIDA WIDYA CHRIS NOVALYA
Published: October 2023

Isu kekerasan seksual di institusi akademik mencuat setelah banyaknya kasus yang terungkap ke ranah publik. Namun pelaporan tindak kekerasan seksual di kampus masih rendah dikarenakan adanya relasi kuasa dan minimnya pengetahuan mengenai bentuk, mekanisme pelaporan, dan penanganan kekerasan seksual. Berita tentang kekerasan dan pelecehan seksual yang muncul sekarang bukan hanya berada disatu kampus saja, tetapi sudah banyak terjadi dikampus-kampus yang ada di Indonesia. Hal tersebut dilakukan bukan lagi oleh mahasiswa kepada mahasiswa lain, tetapi sudah banyak dosen bahkan pejabat-pejabat kampus yang menjadi pelakunya. Banyak korban-korban yang masih takut untuk melapor kepada pihak yang berwajib dan pihak kampus khususnya tentang kekerasan dan pelecehan seksual yang dialaminya ini, . Alasan pelecehan seksual sulit dilaporkan dalam kampus adalah pelaku memiliki relasi kuat terhadap penguasa kampus karena masih lemahnya payung hukum di Indonesia yang belum bisa melindungi korban sepenuhnya. Bahkan ada kejadian tentang korban yang dituntut balik oleh pelaku atas pencemaran nama baik, karena tidak memiliki bukti yang kuat dan valid akan kejadian tersebut.
A second major tumor gene product, TK1.
Authors: Mamoor Shahan
Published: October 2023

We recently described recurrent differential expression of ECT2 in a wide survey of solid tumors in humans (1) and subsequently demonstrated control of ECT2 expression by the tumor suppressor p53 (2). We describe here parallel transcriptional activation of thymidine kinase 1 (TK1) driven by p53 loss in vitro (3), show that mutation of p53 is sufficient to drive ECT2 transcriptional activation in vivo (4), and find that at least in the mammalian brain, p53 deficiency results in quantitatively distinct ECT2 and TK1 induction in a transformation-dependent manner (5). Together with data demonstrating differential expression of TK1 in human cancer in the pancreas, the colon, and the endometrium (6, 7), we provide evidence of a second major tumor gene product in solid tumors in humans.
Xist induction following p53 disability features Tensin 3 modulation.
Authors: Mamoor Shahan
Published: October 2023

We recently described a sex-specific transcriptional regulation mechanism, found in physiologically relevant settings in breast cancer cells in vitro and in cells of the embryo in mice and humans, wherein mutation or loss of the p53 tumor suppressor results in transcriptional perturbation of the non-coding RNA that functions in X-inactivation, Xist, with this transcriptional change being among the most quantitatively substantial changes transcriptome-wide - naturally, in the presence of p53 mutation, or experimentally following deletion of p53 (1). Here, we studied p53 wild-type and p53 mutant breast cancer cell lines, mouse embryonic stem cells deficient in p53, as well as Xist-positive and Xist-negative human embryonic stem cell clones (2-4) to understand the transcriptional consequences of Xist up-regulation following loss of p53 tumor suppression in development and transformation. We reveal modulation of Tensin 3 as a transcriptional feature of Xist induction following impairment (disability) of p53.
Theoretical Explanation and Computational Formulas for the Repulsion of Atomic Nucleus on Electrons and Strong Short-Range Repulsion
Authors: ShengQin
Published: October 2023

The main conclusions of this paper are as follows: (1) The theoretical explanation for the repulsive force generated by electrons near the atomic nucleus fundamentally answers why electrons do not fall into the atomic nucleus; (2) The theoretical explanation for the elastic scattering of neutrons; (3) The theoretical explanation for the reflection of photons by objects; (4) The theoretical explanation for the strong short-range repulsive force; (5) The provision of elastic scattering mechanisms and mechanical formulas for all matter composed of electromagnetic forces. (6) Prove that the fundamental particles in the standard model of physics are composed of smaller particles.
Impacts of the African Humid Period termination may have been delayed in the Atlantic Sahara
Authors: Nogueira Juliana , Evangelista Heitor , Sifeddine Abdelfettah , ElMouden Ahmed , Bouchaou Lhoussaine , Brahim Yassine , Mendez-Millan Mercedes , Caquineau Sandrine , Piacsek Patricia , Briceno-Zuluaga Francisco , Boucher Hugues , Carvalho Carla , Masrour Moussa , Juřičková Lucie
Published: October 2023

The paleoenvironmental changes recorded at the Khnifiss Lagoon, on the Saharan Atlantic coast, southern Morocco, during the last 3.5 kyrs BP puts another piece to the puzzle on the intricate relationship between North Atlantic climate patterns and climate variations in Northwest Africa. This study shed light on the hydroclimatic dynamics during a pivotal climatic period: the transition from the mid- to late Holocene and the termination of the African Humid Period. Our research unveils two key periods of salt marsh expansion at the Khnifiss Lagoon, approximately 3.5 and 2.7 kyrs BP when humidity conditions and increased marine influence were recorded. Those conditions paint a scenario of increased storminess and precipitation in NW Africa, compatible with a negative NAO-like climatic configuration. Our data revealed a synchronization between this scenario in NW Africa and cooling events in the North Atlantic during the transition from the mid-to-late Holocene, related to Rapid Climate Changes (RCCs) occurring between 3.5 and 2.5 kyrs BP, also known as the Bond event #2. These findings can potentially enhance climate prediction models, offering opportunities to better prepare for and adapt to the evolving climate patterns in the region. High-resolution paleoenvironmental records are still rare in Northwest Africa and are highly needed. The knowledge gained from these studies represents a critical step towards addressing the climate challenges in Northwest Africa and fortifying the region’s resilience in the face of climate change.
Integrating Aerodynamic Properties into a Catapult’s Calibration
Authors: Srinivasula Aditya
Published: October 2023

All machines, no matter how precisely they were built, harbor inconsistency in the task they are supposed to perform. Science Olympiad’s Trajectory event is one of many youth competitions that encourages testing for this inconsistency. Here, participants are required to build a device that can launch a projectile to a target anywhere between 2 meters and 8 meters in 1-meter increments and at heights of 0.5 meters or 1 meter. During the few months I participated in this event, I tested for inconsistency in my catapult’s launch distance. Firstly, I identified three aerodynamic-related problems and fixed them with my best modification. To avoid confounding results, I only used the 2-meter-far target at a 0.5-meter-elevation for testing. Results from running a probability significance test on the modified catapult against my goal of 98% accuracy in the catapult’s launch distance gave a p-value of 0.31. Because 0.31 was greater than my significance level (α) of 0.05, the catapult having 98% accuracy at the 2-meter-far, 0.5-meter-high target cannot be disproven. The results of this significance test were constant for every other possible target distance and elevation. The overarching purpose of this research was not just to create a competition device, but also to make a contribution to the use of catapults on aircraft carriers. These steam-based catapults are considered dangerous and inefficient, so I created and calibrated this catapult using a bungee cord launch force as a better alternative.
Belief in future occurrence modulates the effect of episodic future thinking on delay discounting
Authors: Garcia Jimenez Claudia , Rifon Lucas , Mazzoni Giuliana , D'Argembeau Arnaud
Published: October 2023

Episodic future thinking has garnered attention as an effective way to reduce delay discounting—the tendency to prefer immediate rewards over delayed, larger rewards. Selecting an immediate rather than distant reward can constitute a deliberate and adaptive choice in certain circumstances, such as when the future is uncertain. Episodic future thinking, rather than simply reducing delayed discounting, may inform our decisions adaptively, depending on what we expect will happen in the future. The subjective feeling that an event will happen in the future – referred to as belief in future occurrence – could play a key role in this process. The present study tested this hypothesis by examining whether imagining certain future events (events for which one is confident they will occur) versus uncertain future events (events for which one feels unsure whether they will occur or not) would have a different impact on delay discounting. Results showed that imagining certain future events reduces the tendency to discount the value of future rewards, compared to imagining uncertain future events. No difference in discounting was found between uncertain future events and a control condition. This study supports the idea that imagining future events helps one make flexible decisions, and the extent to which one believes in the occurrence of the events may play a key role in this process.
Early Bilingualism Enhances Theory of Mind in Children from Low-income Households via Executive Function Skills
Authors: HUANG RONG , Baker Erin Ruth , Wang Tianlin
Published: October 2023

The study focuses on children in poverty and investigates whether early bilingualism enhances economically disadvantaged children’s Theory of Mind (ToM), and what role Executive Function plays in the relation between bilingualism and ToM. Sixty-eight preschool-aged children (35 English monolinguals, 51.4% boys, and 33 English-Spanish bilingual children, 57.5% boys) from low-income backgrounds completed standardized language assessments, three executive function tasks, and a five-task ToM battery. Results showed that after controlling for children’s age, income-to-needs ratio, and English proficiency, bilingual children demonstrated greater ToM competence compared to monolingual children. A higher degree of bilingualism was associated with better ToM performance in bilingual children. Mediation analyses showed that children’s working memory and attention shifting accounted for the links between bilingualism and ToM. The findings suggest that an early bilingual learning experience may facilitate preschool children’s ToM development in economically disadvantaged environments, and this relation was differentially impacted by executive function components.
Anticipated Motives for Gambling Treatment in Adults from the U.S.
Authors: Grant Weinandy Jennifer T. , Connolly Alexander , Floyd Christopher , Kraus Shane Winfield , Grubbs Joshua B.
Published: October 2023

Prior works note that identifying problematic play is a leading barrier to treatment seeking, contributing to low treatment rates in those with gambling problems (e.g., Bijker et al., 2022; Suurvali et al., 2012a). While research has looked at treatment seekers’ motives for treatment (Gainsbury et al., 2014; Suurvali et al., 2012b), the situations or signs (anticipated motives) individuals look for that suggest they would need treatment in the future remains unknown. Participants were gamblers (N=1,791) from a census-matched U.S. sample of adults who reported no concerns about their gambling. Participants completed questions assessing how much money they would have to lose while gambling to think they might have a problem and what factors might motivate them to pursue treatment for gambling problems in the future. Participants reported a wide range of financial loss that would suggest they had a problem, and higher income men who gambled more frequently reported higher necessary losses. There was little variation in endorsement (40-60%) of 14 situations that may lead them to seek treatment in the future (e.g., felt guilty). However, income, gender identity, and problem gambling behavior were linked to the endorsement of some of these anticipated motives, with some differences in endorsement between those engaging in high- and low-level problem gambling. Collectively, results are consistent with the inference that many individuals may not be aware of what problematic gambling would look like for them, though income, gender identity, and problem gambling behavior may impact their consideration of anticipated motives.
Neighborhood context, genes and education
Authors: Silva Laura , Wolfram Tobias , Tropf Felix C
Published: October 2023

This article expands on previous research on gene-environment (GxE) effects, by stepping beyond the family dimension and exploring how the neighborhood context interacts with education linked genes in influencing cognitive skills, academic motivation and academic achievement. Theory predicts that genetic links to education can be more fully expressed in high as compared to low socio-economic status families, although empirical evidence is mixed. We argue that the neighbourhood environment may also play a role on the relationship between genes and education-related outcomes. We find robust evidence that living in socioeconomically advantaged neighborhoods contributes to closing the gap between individuals characterized by high and low genetic predispositions towards academic motivation and academic achievement, while it has a null effect on cognitive skills. These findings emphasize that environmental contexts can shape the unfolding of genetic endowment and point to an important role of the neighborhood in compensating for pre-existing disadvantage, thus contributing to improve chances of social mobility and to limit the reproduction of social inequalities in education over time.
Recent advances in the treatment of attention deficit hyperactivity disorder in children: A narrative review
Authors: Dhungel Omkar , Karki Utkarsh , Sharma Bikash
Published: October 2023

Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder characterized by age inappropriate levels of inattention, and or impulsivity and hyperactivity. Often arising in childhood, ADHD can also be chronic in nature, frequently continuing through adolescence and beyond, at least at the level of impairment. The early accurate diagnosis of the condition is possible based on clinic settings, clinicians’ expertise; and the context at which screening and evaluation of this population for ADHD is done. ADHD is an etiologically complex neurodevelopmental disorder that begins early in life and has heterogeneous clinical manifestations encompassing a broader spectrum of psychopathology. This underscores the importance of early accurate diagnosis so that effective treatments can be started that significantly reduces immediate and long-term psychosocial burdens. Effective ADHDtreatments are available and cognitive neuroscience is rapidly expanding, however there is a significant gap between empirical evidence and clinical practice. Multimodal and multidisciplinary treatment strategies are the best approach in the treatment, but there is a significant gap between the knowledge and practice, such that evidence-based treatments are often not implemented in the community settings. How we implement such in our clinical practice helps us to advocate and advance towards more effective ADHD treatments. There is growing scientific progress in understanding the causes and treatment of ADHD. Knowledge about the evidence-based recent advances in the treatment helps mental health professionals to advocate for the effective approaches to treat ADHD, with minimal unwanted side effects.
A Study on the Comparison of VNCa and VMI+ Image Quality and Optimized Method according to kV Modulation of DECT: A Porcine Ankle Ligament Model
Authors:   KOREA SOCIETY OF COMPUTED TOMOGRAPHIC TECHNOLOGY, Jung Yoon-Yeong , Shim Ji-Na , Kim Ryeong-Hee , An Chi-Bok , Kim Se-Yeong
Published: October 2023

This study conducted a quantitative and qualitative assessment of the effectiveness of Single-Energy and Dual-Energy Virtual non-calcium imaging, as well as Virtual Monoenergetic Imaging at 55, 65, and 75 keV, for diagnosing ligament conditions with regard to tube voltage modulation. A porcine hindlimb ankle ligament model was utilized for this evaluation. The two widest regions within the ligament model were designated as regions of interest, and measurements of Hounsfield Units, Signal-to-Noise Ratios, and Contrast-to-Noise Ratios were obtained. Quantitative evaluation was then conducted based on the average values. Furthermore, qualitative assessments of ligament diagnosis were carried out by five musculoskeletal radiologists and five radiological technologists, each with over five years of experience in Computed Tomography laboratory work. Following both quantitative and qualitative evaluations, it was observed that the Dual-Energy Virtual non-calcium image obtained at 70/Sn150 kVp and the Virtual Monoenergetic Imaging Plus 65 keV image exhibited superior image quality compared to the Single-Energy CT image. These differences were statistically significant (p<0.05). Moreover, the highest image quality was noted at 65 keV within the Virtual Monoenergetic Imaging Plus energy range. The Dual-Energy Virtual non-calcium image was found to be more suitable for imaging ligaments than the Virtual Monoenergetic Imaging Plus 65 keV image.(p<0.05) Notably, lower tube voltages were associated with improved image quality across all images. Consequently, it was determined that 70/Sn150 kVp Dual-Energy Virtual non-calcium images are more optimized than Single-Energy CT and Virtual Monoenergetic Imaging Plus 65 keV images for diagnosing ligament diseases in patients who present challenges for Magnetic Resonance Imaging and in emergency cases. Additionally, employing Virtual non-calcium Color Coding images for accurately describing ligament thickness or length may enhance the diagnostic value of the images.
A Study on the Optimization of Contrast Enhancement in Cerebrovascular CT in Hemorrhagic Stroke Patients
Authors:   KOREA SOCIETY OF COMPUTED TOMOGRAPHIC TECHNOLOGY, Lee In-Uk , Choi Jae-Seong , Lee Seon-Pyo , Lee Hyeon-Seong
Published: October 2023

During the brain computed tomography angiography (Brain CTA) test of hemorrhagic stroke patients, we tried to find out the test method for optimizing contrast enhancement of cerebrovascular vessels by changing the location of the region of interest (ROI) and scan delay time. From September 2022 to February 2023, 80 patients who visited the emergency room and performed a Brain CTA test were tested, and 10 people in control group without disease were ROI set at C3 to C4 level and performed a test by 6-second delay scan as soon as contrast enhancement was performed on common carotid artery (CCA) with the naked eye. 40 people in the hemorrhagic stroke experiment group A setting the same test method as the control group were tested after A-0; 6 second, A-1; 8 second, A-2; 10 second, A-3; 12-second delay for 10 people each, and 30 people in experiment group B setting ROI at circle of willis level and as soon as contrast enhancement was performed in the middle cerebral artery (MCA) were tested after B-1; 2 second, B-2; 4 second, B-3; 6-second delay for 10 people each. The evaluation methods include quantitative evaluation that compares and analyzes the mean HU values and percentage values of internal carotid artery (ICA), MCA, superior sagittal sinus (SSS), and internal jugular vein (IJV) of the control group and experimental groups A and B, qualitative evaluation through reconstructed images, and significance evaluation was conducted using an independent sample t-test. As a result of the quantitative evaluation, the mean HU value of MCA in the experimental group was measured lower than that of the control group, 369 HU, but was generally close to 300 HU. In the MCA vs SSS percentage value, the experimental group B-2 was 0.7%, the closest value to the control group. As a result of the blind test through reconstructed images as a qualitative evaluation, the control group scored the highest with 16 points, and in the experimental group B-2 scored the highest with 15 points. As a result of significance evaluation through an independent sample t-test, the p-value of the control group and the experimental group B-2 was 0.408, which was evaluated as having no significant difference, and other experimental groups were evaluated that there was a significant difference. As a result of analyzing the test performed by changing the ROI position and scan delay time of control and experimental groups A and B, setting the ROI at the circle of willis level and testing after 4-second delay as soon as contrast enhancement is made in MCA will be useful for Brain CTA test in hemorrhagic stroke patients.