bluuebunny/crossref_metadata_2025 huggingface dataset:
Prototype Pretreatment Proses Pengecatan Part Motor Menggunakan Metode Logika Fuzzy Berbasis Internet Of Thing (IoT)
Authors: Dani Akhmad Wahyu , Supegina Fina , Sirait Fadli , Yuliza Yuliza , Gautama Abim Ridha , Attamimi Said
Published: May 2023

Abstrak— Proses pengecatan part motor memiliki beberapa tahapan. Salah satu proses dalam pengecatan adalah pretreatment. Proses ini adalah proses pembersihan part motor menggunakan air yang di campur dengan bahan kimia, berfungsi untuk membersihkan part yang akan dicat dari kotoran yang menempel pada part Pada saat penyemprotan part proses penyemprotannya dilakukan terus menerus tanpa adanya penghematan penggunaan air dan tidak ada indikator level air. Sehingga dapat menggangu proses didalam pretreatment pembilasan part. Permasalahannya adalah pengecekan level air, suhu dan penyemprotan air ke part tidak terkontrol. Dan juga akan berdampak pada proses kualitas dalam produksi. Dalam hal ini system pengontrolan sangat diperlukan guna mengontrol seluruh parameter yang ada pada pretreatment sehingga dapat memaksimalkan proses produksi. Sehingga penelitian membahas implementasi logika fuzzy pada pengontrol motor pompa, temperatur dan ketinggian air. untuk proses penyemprotan bagian di area preatreatment, guna membantu proses pengontrolan kecepatan pompa air dan pengontrolan kecepatan pompa air. suhu dan ketinggian air pada proses pretreatment pembilasan bagian. Konsep IoT diterapkan dalam penelitian ini. Berdasarkan hasil analisa dan pengujian yang dilakukan pada penelitian ini, pada pengukuran suhu sensor DS18b20 mempunyai error sebesar 0.73%, pengukuran level menggunakan sensor ultrasonic mempunyai error sebesar 2.07%. Pada pengukuran kecepatan motor mempunyai error sebesar 1.6 %. Kecepatan transfer data IoT sebesar 14 second menggunakan ThinkSpeak. Dan untuk pengukuran nilai keluaran fuzzy logic mempunyai nilai yang hampir sama dengan peracangan menggunakan matlab. Dengan sample pengujian menggunakan suhu 44 C dan level 10 cm menghasilkan nilai pwm 127
Analisis Indeks Keandalan EAF dan EFOR Pada Pembangkit PT. Cahaya Fajar Kaltim
Authors: Adnan Hafidz Akhmad , Syahputra Rizky Nurkholas Yuke , Saputra Aprilian Sasi Kirana Purwa , Irawan Heri , Alham Nur Rani , Muslimin Muslimin
Published: May 2023

Listrik telah menjadi salah satu kebutuhan pokok dalam menjadi sumber energi primer dalam kehidupan sehari-hari. Hampir semua aspek kehidupan manusia memerlukan energi listrik, di perkantoran, rumah tangga, dan perindustrian. Dalam memenuhi kebutuhan akan energi listrik didirikan pembangkit-pembangkit yang baru. Terdapat beberapa faktor yang berhubungan dengan keandalan energi listrik. Faktor tersebut meliputi probabilitas, bekerja sesuai dengan fungsinya, periode waktu, dan kondisi operasi. Dalam menjamin dan memenuhi kebutuhan akan energi listrik konsumen, maka keandalan dari sebuah sistem pembangkit sangatlah penting. Tingkat keandalan yang tinggi akan menentukan kontinuitas serta keandalan dari sebuah sistem pembangkitan energi listrik. Penelitian ini bertujuan untuk mengetahui dan menganalisis indeks keandalan unit pembangkit berdasarkan nilai EAF (Equivalent Availability Faktor) dan EFOR (Equivalent Forced Outage Rate) pada PT. Cahaya Fajar Kaltim. Pada generator pertama EAF terendah terjadi yaitu pada bulan september dan bulan oktober sebesar 68,31% dan 60,78% serta nilai EFOR sebesar 0%. Pada generator kedua EAF terendah terjadi yaitu pada bulan agustus dan di bulan september sebesar 60% dan 76,50% serta nilai EFOR sebesar 0,34% dan 0%. Sedangkan, pada generator ketiga EAF terendah terjadi bulan april yaitu sebesar 42,13% dengan nilai EFOR sebesar 0,37%. Faktor yang dapat mempengaruhi nilai dari EAF yaitu plant hour, derating, dan outage. Sedangkan, faktor yang dapat mempengaruhi nilai dari EFOR yaitu jam operasi atau (service hour), dan jam keluar paksa (force outage hour).
Sistem Monitoring pH dan Kekeruhan Kolam ikan Koi Berbasis Internet of Things Menggunakan Aplikasi Blynk
Authors: Taufik Ahmat , Fadlil Abdul
Published: May 2023

Ikan koi termasuk salah satu jenis ikan yang banyak digemari oleh masyarakat karena harganya yang mahal dan warnanya yang unik. Hal tersebut juga didukung dengan proses perawatan ikan koi yang tidaklah mudah. Salah satunya adalah kualitas air dan pakan yang baik sehingga ikan dapat tumbuh dengan sehat. Namun permasalahannya untuk menciptakan kualitas air yang baik membutuhkan pengorbanan waktu dan tenaga yang lebih banyak. Oleh sebab itu, dengan adanya perkembangan teknologi maka pengecekan kualitas air utamanya pH dan kekeruhan dapat dilakukan dengan bantuan teknologi. Salah satunya dengan menggunakan bantuan Internet of  Things (IoT). Dimana metode ini mempercepat pengguna dalam memperoleh data. Hal tersebut dikarenakan hasilnya akan terkirim secara otomatis melalui sebuah aplikasi Blynk yang terinstal pada smartphone. Hasil akhir dari penelitian yang telah dilakukan menunjukan bahwa alat tersebut berhasil dalam memantau kekeruhan dan pH air kolam ikan koi secara otomatis dan tepat. Pnegujian menggunakan jaringan yang berbeda dengan hasil nilai yang didapatkan dari sensor pH berada pada rentang nilai  pH 7,23 – 7,74 dan untuk kekeruhan air berada pada rentang nilai dengan rentang nilai 5–37 NTU.
Sentiment Analysis From Twitter About Covid-19 Vaccination in Indonesia Using Naive Bayes and Xgboost Classifier Algorithm
Authors: Irwanto Alvin , Goeirmanto Leonard
Published: May 2023

The pandemic that hit the world has greatly impacted our life. But after some time, it seems that it will be going to end because the vaccine has already been made. In response to this, some people expressed their opinions about this vaccination on social media, for example, in the form of tweets on Twitter. The authors use those opinions or tweets as sentiment analysis material to determine the assessment of this vaccination. The tweet data in this study was obtained through data crawling using the Twitter API with the Python programming language. The variables used in this case are public tweets and their sentiments. This sentiment analysis process uses the Classification method with the Naive Bayes Classifier and will be compared with the XGBoost Classifier algorithm. The results of this study indicate that people are more likely to respond positively to this vaccination. In this case, the Naive Bayes Classifier got better performance with 0.95 from ROC - AUC Score and 134 ms in runtime compared to the XGBoost Classifier algorithm with 0.882 in ROC - AUC Score and 1 minute and 59 seconds in runtime.
Effect of one-year corrosion on steel bridge materials in the maintenance stage with the Charpy impact test method
Authors: Fahimuddin Fauzri , Kasmuri Mudiono , Sofyan Rikki , Junaidi Syarif , MS Latha
Published: May 2023

Corrosion of steel bridges is a major problem because it has the potential to reduce the performance of the structure over its lifetime. One factor that should not be reduced is fracture toughness, so this should be a very important concern in the maintenance program. Existing guidelines do not specify when corrosion conditions are hazardous and when corrosion conditions are not hazardous to structural performance. This study aims to explain how long corrosion does not cause danger, and when corrosion becomes dangerous. The Charpy Impact Test was used in this study to examine the effect of corrosion with a corrosion duration of weekly up to one year on fracture toughness. The series of tests in this research program used SM-490-type specimens which are steel plates commonly used for bridge structures. Specimens with variations in corrosion duration which were the result of immersion in sulfuric acid solution to simulate corrosion growth were then subjected to crack toughness testing. The toughness of each specimen was tested with a corrosion period starting from 1 week and so on up to 1 year to determine the level of fracture toughness. The results obtained from all tests showed that there was no decrease in the toughness of the corroded specimens for up to 1 year. The data presented in this study is very helpful for the designers and maintainers to plan corrosion treatment programs with clearer and more accurate considerations in assessing the structural integrity of steel bridges affected by corrosion.
Multilabel image analysis on Polyethylene Terephthalate bottle images using PETNet Convolution Architecture
Authors: Aziz Khoirul , Trisiawan Inggis Kurnia , Suyasmini Kadek Dwi , Iklima Zendi , Yunita Mirna
Published: May 2023

Packaging is one of the important aspects of the product. Good packaging can increase the competitiveness of a product. Therefore, to maintain the quality of the packaging of a product, it is necessary to have a visual inspection. Furthermore, an automatic visual inspection can reduce the occurrence of human errors in the manual inspection process. This research will use the convolution network to detect and classify PET (Polyethylene Terephthalate) bottles. The Convolutional Neural Network (CNN) method is one approach that can be used to detect and classify PET bottle packaging. This research was conducted by comparing seven network architecture models, namely VGG-16, Inception V3, MobileNet V2, Xception, Inception ResNet V2, Depthwise Separable Convolution (DSC), and PETNet, which is the architectural model proposed in this study. The results of this study indicate that the PETNet model gives the best results compared to other models, with a test score of 96.04%, by detecting and classifying 461 of 480 images with an average test time of 0.0016 seconds.
Selection lead logistics provider in consumer goods using AHP – TOPSIS approach
Authors: Suroto Kuwat , Hasbullah Hasbullah
Published: May 2023

Vendor selection is a strategic activity in order to support the achievement of the company`s success and competitiveness. Significantly, the company has some specific standards in the selection. Therefore, evaluation is needed to see which vendors match the company's criteria. The purpose of this study was to evaluate and select the proposed vendor in a decision support system using the AHP and TOPSIS approaches. The AHP method is used to determine the importance of the criteria, while the TOPSIS method is used to rank alternatives. The results show that Provider 1 has the highest score compared to other alternatives with a value of 0.852. Sensitivity analysis shows that the proposed AHP and TOPSIS methods are robust, suitable for this problem, and have a low rate of change.
Quality system as a mediating variable of the relationship between lean manufacturing and operational performance in the food industry
Authors: Budianto Budianto , Feri Zefki Okta , Nurlaila Qomarotun , Sitorus Helena , Suryatman Tina Hernawati
Published: May 2023

The failure to implement lean manufacturing (LM) in the food industry was caused by the overlapping application of LM tools. The application of LM in the food industry is experiencing problems in the form of confusion in the placement of QS or Quality Control (QC). This problem is the background of this research. The objective of this study is to compare two methods of the implementation of LM in improving operational performance (OP), namely (1) making quality control (QC) a part of LM practice and (2) making quality control (QC) a part of the quality system (QS). The applied analytical method was the Structural Equation Modelling (SEM) based on Partial Least Square (PLS). The research findings indicated that "making QC a part of QS" can optimally mediate increasing LM against OP. This study's originality is a comparison of the relationship between LM and OP based on the two methods with large sample sizes. The implications of the findings are expected to become recommendations for applying LM in the food industry, especially in terms of placing quality in its implementation.
Model predictive control with exogenous auto-regressive model to improve performance in the CO2 removal
Authors: Wahid Abdul , Rodiman Nisa Methilda Andriana , Rahma Alifia , Ahmad Arshad , Kaharian Andri Kapuji
Published: May 2023

Model predictive control (MPC) is used in the CO2 removal process in the Subang field to improve its control performance. MPC is used to maintain the CO2 concentration at the sweet gas output by controlling the feed gas pressure (PIC-1101), makeup water flow rate (FIC-1102), and amine flow rate (FIC-1103). The empirical model applied to MPC to represent the process model is the auto-regressive exogenous (ARX) model. The ARX model is compared with the first order plus dead time (FOPDT) model based on the root mean square error (RMSE) between the model and the actual process, then MPC parameters are tuned which include sampling time (T), prediction horizon (P) and control horizon (M) to control for the three variables. Improved control performance is measured based on the integral square error (ISE). The results show that the ARX model is the best model for the CO2 removal process with an RMSE value of 35%-91% smaller than the FOPDT model. The optimal control parameters Prediction Horizon (P), Control Horizon (M) and Sampling Time (T) in the CO2 removal process are 75, 25 and 1 on PIC-1101, 25, 10 and 1 on FIC-1102, and 30, 25 and 1 on FIC-1103. The MPC-ARX (MPC using ARX model) can improve the control performance of 33% in the servo control and 6-56% on the regulatory control. However, not all of them showed an increase in control performance improvement from previous studies even though they had used the best model (ARX). This is due to the MPC parameter setting that is not yet appropriate, so it needs to be retuning.
Induced roll magnetic separator applied for high grade ilmenite separation from mining tailing
Authors: Dahani Wiwik , Sundari Rita , Somali Subandrio , Marwanza Irfan , Andriyani Andriyani , Hartanto Djoko , Arifin Khuzaimah , Ediati Ratna
Published: May 2023

This article aimed to separate ilmenite (FeTiO3) mineral from tin tailing applying a single splitter IRMS (Induced Roll Magnetic Separator). Ilmenite mineral is the substantial main source for TiO2. This work used air table middling for feeding. The mineral components of middling feeding from air table using grain counting analysis were found as follows: cassiterite (48.61%), ilmenite (21.36%), monazite (18.56%), pyrite (4.60%), zircon (5.85%), quartz (0.71%), anatase (0.27%), and tourmaline (0.02%), It was found that electrical current and opening of single splitter affected the degree of separation addressing to ilmenite recovery and ilmenite grade. The finding showed that current of 15 Ampere and single splitter with opening 4.25 cm yielded ilmenite recovery more than 74%. The high grade ilmenite (90.46 %) and recovery of 29.38% was obtained using 5 Ampere  with single splitter opening of 1.0 cm. Up to date, the study on ilmenite separation from tailing only focused on the effect of current, however, the effect of single splitter magnetic separator  to enhance ilmenite recovery from other paramagnetic minerals such as monazite, siderite, xenotime and tourmaline has not yet been reported.
ANALYTICAL INVESTIGATION ON THE CONDENSATION PERFORMANCE OF VERTICAL, TILTED AND HORIZONTAL SURFACES FOR PASSIVE WATER HARVESTING
Authors: GÜNGÖR Şahin
Published: May 2023

Condensate harvesting is the phenomenon of obtaining water from water vapor in the humid air condensing on a surface. The idea is a passive technique with no additional energy consumption, yet condensation performance of a surface varies with many parameters. This study analytically investigates the condensation performance of the vertical, tilted, and horizontal water harvesting systems. First, viscous effects, inertia, and gravitational forces are examined in detail to express the evolution of boundary layer in condensation film. Then the condensation performance of each surface orientation and tilt angles are documented and compared for all flow conditions. Although vertical surfaces have higher condensate harvesting performance compared to the tilted and horizontal systems, the condensation rate is only about 2% lower up to 15⁰ tilt angle. When the harvesting surface is tilted at 30⁰, the condensation rate of the laminar film decreases by 3.5%, while the reduction is 4.7% in wavy-turbulent film condensation. The results indicate that the change in condensation rate is more evident just after 45⁰ tilt. Furthermore, 89⁰ tilted surfaces experience 63.7% and 74.1% lower condensate harvesting in laminar and wavy-turbulent regimes, respectively. In addition, identical horizontal surfaces produce only one fifth condensation rate of a vertical system.
Impact of the COVID-19 pandemic on Stage and Incidence of Head and Neck Cancer: A Rapid Review and Meta-Analysis
Authors: Douglas Catriona , Clements Kelten , Thapa Alekh , Conway David , Paterson Claire
Published: May 2023

Objectives: This rapid review aims to evaluate the impact of the
COVID-19 pandemic on incidence of head and neck cancer (HNC) and stage
distribution at diagnosis. Design: Rapid Review and Meta-analysis
Participants: comparative data for new HNC patients between a
pre-pandemic cohort (before March 2020) and a pandemic cohort (after
March 2020 during the lockdown period). Main Outcomes Measured: data on
tumour stage, incidence, referral pathway (number of new patient
referrals) or workload levels (number of HNC treatments). Data on stage
were summarised as odds ratios (OR) with 95% confidence intervals (CI),
data related to changes in numbers of diagnoses, referrals and workload
levels were summarised as a narrative synthesis. Results: 31 reports
were included in this review. Individually 16 out of 23 studies did not
show a significant impact on stage relative to the pre-pandemic period.
However, the meta-analysis revealed that patients diagnosed with HNC
during the pandemic were 16% more likely to have nodal involvement
(OR=1.16; 95% CI 1.00–1.35), 17% more likely to have a late overall
stage (OR=1.17; 95% CI 1.01–1.36), and 32% more likely to present
with advanced tumour extent (T3 and T4 stage) (OR=1.32; 95% CI
1.08–1.62). Data on incidence was extremely limited and not currently
sufficient to assess trends in burden of disease. Conclusions: This
review indicates that during the COVID-19 pandemic there was upstaging
of HNC at diagnosis, suggesting the provision of care to HNC patients
was significantly affected.
Tracheal pouch developed in a child with SMA type 1 after prolonged ventilation via tracheostomy tube due to chronic respiratory failure.
Authors: Ibraheem Ahmed , Khayer Ahmad Al
Published: May 2023

Background: 5-year-old male child, known case of SMA-1 with
chronic respiratory failure. He was ventilated since the first year of
life. Tracheostomy tube was used to manage his chronic ventilation.
Patient was admitted to long-term care center for management of his
co-morbidities. He had several attacks of desaturation since the age of
3 years, few of them progressed to cardiac arrest. During these attacks,
decreased air-entry and airway resistant was observed. A change of
tracheostomy tube led to marked improvement. Method: The case
was studied to find out the reason behind these recurrent events.
Patient was referred to ENT consultant for further assessment and
investigations. Chest x-ray & bronchoscopy were done. Surprisingly,
tracheal pouch was found in the chest x-ray which was the cause of tube
obstruction. Results: The tube obstruction was due to slipping
of its tip to the tracheal pouch which resulted in air-way obstruction,
suffocation & eventually cardiac arrest. The change of tube during the
event solved the problem temporary but whenever tube tip displaced to
the pouch the event has recurred. To prevent the recurrent obstruction,
the tube has been routinely changed by ENT specialist under direct
visualization using tracheo-bronchoscopy to ensure bypassing the
tracheal pouch and right placement of the tracheostomy tube tip.
Conclusions: Tracheal tube pouch is rare anatomical abnormality
in the trachea which associated with multiple risk factors. It can cause
air-way obstruction in ventilated patient. X-ray & tracheobroncoscope
are important in confirming the diagnosis. Bypassing the pouch during
tube insertion solves the problem.
Molecular-level insight on CO2 electroreduction to formate facilitated by triazole ionic liquid interfacial microhabitat
Authors: Peng Kuilin , Zeng Shaojuan , Guilin Li , Jiang Chongyang , Wang Chenlu , Yuan Lei , Bai Lu , Zhang Xiangping
Published: May 2023

The interfacial microhabitat induced by triazole ionic liquid
([124Triz]−) electrolyte can effectively enhance formate selectivity
for electrochemical CO2 reduction reaction. However, the catalytic
mechanism remains unclear. Herein, we combined molecular dynamics
simulation and density functional theory to reveal the regulatory
mechanism. The results showed that the dipolar interaction between CO2
and [124Triz]− cooperating the hydrogen bonds between [124Triz]−
and H2O facilitate the accumulation of H atoms around C atoms of CO2.
Meanwhile, the strong polar [124Triz]− induces negative
electrostatic potential for the H atoms of H2O near anions. As a result,
the negative H atoms are more likely to attack the positive C atoms of
CO2, which results in a lower free energy of -0.10 eV for the formation
of *HCOO intermediate and promotes the formation of formate. Thus, the
[124Triz]− contributes to high formate selectivity owing to the
combined effects of strong CO2-dipole interaction and hydrogen bonds
with H2O.
Eczema in early childhood increases the risk of allergic multimorbidity
Authors: Sprikkelman Aline , LA Miltner , Vonk Judith , Velde Jantina van der
Published: May 2023

Background: Eczema in early childhood is associated with
developing subsequent allergic diseases, including food allergy, asthma
and hay fever. However, eczema has a heterogenous presentation regarding
age of onset and persistence, which may lead to different allergic
outcomes during childhood/adolescence. Recently, sub-phenotypes of
eczema have been suggested as predictor for allergic multimorbidity.
Objective: To identify associations of eczema phenotypes with
food allergy, asthma and hay fever during childhood/adolescence.
Additionally, we aimed to describe the trajectories of eczema, asthma
and hay fever, stratifying by food allergy presence. Methods:
TRACKER (Trajectories of Allergy in Children in Real Life Databases) is
a prospective cross-sectional population-based cohort study of 6,852
children/adolescents from the Lifelines cohort. We investigated
associations of seven eczema phenotypes, based on age of onset and
persistence, with food allergy, asthma and hay fever using logistic
regression, adjusted for appropriate covariates. Disease trajectories
were determined by calculating prevalence at different ages.
Results: Participants who suffered from eczema throughout
childhood showed higher risks of developing food allergy, hay fever and
asthma. “Very early onset – persistent” eczema showed the strongest
associations with food allergy, asthma and hay fever. The prevalence of
eczema, asthma and hay fever at all ages were significantly higher in
participants with food allergy, compared to those without.
Conclusion: The largest cohort study on this topic to date shows
that (very) early onset and persistent eczema increases the risk for
allergic multimorbidity. Identification of infants at risk for
developing (very) early onset eczema is of utmost importance to prevent
allergic multimorbidity.
Homework assignments in relational psychoanalytic treatment of personality disorders: A case study of a patient with narcissistic personality disorder
Authors: Magistrale Giuseppe , Hasson-Ohayon Ilanit , Lysaker Paul , Dimaggio Giancarlo
Published: May 2023

Homework assignments in psychoanalysis are contentious; some believe
they contradict psychoanalytic principles, while others argue they
enhance coping skills. We propose that homework can be a legitimate
aspect of relational psychoanalysis when used in a way that is attuned
to the patient’s experience and that homework may be an important
component of treating personality disorders. We present the case of a
man diagnosed with narcissistic personality disorder to illustrate this:
the patient, wrestling with social relations and control dynamics within
therapy, was assigned homework aimed at curbing his compulsive
caregiving and exploring its underlying motives. This exercise led him
to understand his actions stemmed from avoidance of exposing his
vulnerabilities. Subsequently, he was able to engage with relationships
from diverse perspectives and discover new meanings. We advocate that
homework tasks can be successfully incorporated into the relational
psychoanalytic approach, fostering self-reflection and facilitating
transformative change in patients with personality disorders.
Nonbiological factors affecting outcomes in adolescents and young adults with lymphoma.
Authors: Dhir Aditi , Epperla Narendranath , Costa Luciano J. , Xavier Ana
Published: May 2023

Impact of nonbiological factors (NBF) on survival was investigated in a
large cohort of adolescents and young adults (AYA) with lymphoma in the
US. We found that uninsured and Medicaid AYA beneficiaries with
classical Hodgkin lymphoma (cHL) and non-Hodgkin lymphoma (NHL) are at
significantly increased risk of death when compared with their insured
counterpart even after adjustment for other factors affecting survival.
NHL AYA patients residing in lower income counties are at increased risk
of death. The strong association of NBF with survival indicates
opportunities to improve survival of AYA lymphoma patients by improving
access/quality of care in the US.
An Adaptive Decision-making Approach for Transmission Expansion Planning Considering Risk Assessment of Renewable Energy Extreme Scenarios
Authors: zhao pengfei , Xu Xinzhi , Dong Xiaochong , Gao Yi , Sun Yingyun
Published: May 2023

The extreme power output scenarios of renewable energy sources (RES)
proposed new challenges to the safe and stable operation of the power
system. Transmission expansion planning (TEP) with large-scale RES grid
integration needs considering the risk of extreme scenarios. In this
paper, an adaptive decision-making approach for the TEP problem based on
planning-risk assessment-replanning iterative process is proposed. The
method obtains massive temporal and spatial correlated wind-photovoltaic
(PV) power output scenarios by generalizing the historical data to
describe the uncertainties. A data-driven load loss risk assessment
model (RAM) based on the power system’s actual operating state is built,
referring to the degree of extreme scenario risks on the balance of
supply and demand, and the probability of extreme scenario occurrence.
The planning decision is progressively revised according to the risk
assessment result. The Garver’s 6-bus system and the IEEE RTS 24-bus
system are adopted as simulation cases. The results show that the
optimal expansion plans achieve a balance between the economy and
robustness, which verifies the effectiveness of the proposed method.
Computational implementations for analyzing the q-analogues of a combinatorial number family by their derivative formulas, interpolation functions and p-adic q-integrals
Authors: KUCUKOGLU IREM
Published: May 2023

The main purpose of this paper is to provide new computational implementations for describing and analyzing the q-analogues of combinatorial numbers and polynomials which are capable of being an essential tool in solving many scientific and engineering problems. By the provided procedure in the Wolfram language, some members of the aforementioned family are illustrated by their numerical tables and two-and three-dimensional plots. In addition to this computational analysis, we also elaborately investigate some properties pertaining to the aforementioned q-analogues by obtaining their computation formulas, derivative formulas, generating functions and interpolation functions. Especially , by applying the Mellin transform to exponential generating functions for the aforementioned q-analogues, we construct their interpolation functions at negative integers. Moreover, by applying p-adic q-integration to for the afore-mentioned q-analogues, we obtain p-adic q-integral formulas and combinatorial sums involving q-Bernoulli numbers and polynomials. Eventually, this paper is concluded by presenting some comments and observations on the findings.
Mapping variations in bedrock weathering with slope aspect under a sedimentary ridge-valley system using near-surface geophysics and drilling
Authors: Hudson-Rasmussen Berit , Huang Mong-Han , Hahm W. Jesse , Rempe Daniella , Dralle David N , Nelson Mariel D
Published: May 2023

Understanding how soil thickness and bedrock weathering vary across
ridge and valley topography is needed to constrain the flowpaths of
water and sediment production within a landscape. Here, we investigate
saprolite and weathered bedrock properties across a ridge-valley system
in the Northern California Coast Ranges, USA, where topography varies
with slope aspect such that north facing slopes have thicker soils and
are more densely vegetated than south facing slopes. We use active
source seismic refraction surveys to extend observations made in
boreholes to the hillslope scale. Seismic velocity models across several
ridges capture a high velocity gradient zone (from 1000 to 2500 m/s)
located ~4-13 m below ridgetops, that coincides with
transitions in material strength and chemical depletion observed in
boreholes. Comparing this transition depth across multiple north and
south-facing slopes, we find that the thickness of saprolite does not
vary with slope aspects. Additionally, seismic survey lines
perpendicular and parallel to bedding planes reveal weathering profiles
that thicken upslope and taper downslope to channels. Using a rock
physics model incorporating seismic velocity, we estimate the total
porosity of the saprolite and find that inherited fractures contribute a
substantial amount of pore space in the upper 6 m, and the lateral
porosity structure varies strongly with hillslope position. The
aspect-independent weathering structure suggests the contemporary
critical zone structure at Rancho Venada is a legacy of past climate and
vegetation conditions.
Evaluation of the Dix Scaling Factor During Geomagnetically Disturbed Periods Over South America
Authors: França Barbosa Neto Paulo , Arlan da Silva Picanço Giorgio , Marcos De Nardin Clezio , Alexandre Bronzato Nogueira Paulo , Cristina Araújo Resende Laysa , Moro Juliano
Published: May 2023

In this work, we present a study of the Total Electronic Content (TEC) spatiotemporal variability during geomagnetically disturbed periods over South America. For this, we evaluated the Disturbance Ionosphere indeX (DIX) scaling factor (β coefficient) for different magnetic dip angles and seasons. In this context, the β values are given in TEC units (TECU) and correspond to a latitudinal-dependent factor used to normalize the DIX output into a scale from 0 to 5. Thus, we selected thirteen magnetic storm events between 2013 and 2017, subdivided into seven moderate, four intense, and two extreme magnetic storms. The results showed that the β coefficient latitudinal variation is characterized by two asymmetric crests concerning the magnetic equator. This suggests the presence of transequatorial thermospheric wind's effects on the ionosphere's plasma distribution. Additionally, we have observed that the crests occur close to the magnetic equator during the winter and autumn and at higher latitudes during summer and spring. Additionally, we have noticed a drastic decrease in the daily highest β-values before the Storm Sudden Commencement (SSC) stage of the studied events and during the magnetic storm recovery phase. This behavior highlights the expected scenario of quiet conditions with no TEC disturbance.
IAG/USP Test Site: A Near Surface Geophysics Teaching and Research Laboratory
Authors: Porsani Jorge Luís , Roberto Elis Vagner
Published: May 2023

This work shows the construction project of the Geophysical Test Site (Sítio Controlado de Geofísica Rasa, SCGR-I) of the Institute of Astronomy, Geophysics and Atmospheric Sciences (IAG), of the University of São Paulo (USP) and its impact on teaching and research in Geophysics. The IAG/USP test site (SCGR-I) has 1500 m2, being characterized by 7 studies lines with 30 m length in the NS direction. Targets, such as metallic pipes and tanks, plastic pipes and tanks, concrete tubes, ceramic pots, among others, with different geometries and physical properties were buried at depths from 0.5 to 2 m in relation to the surface. A metallic guide pipe of 3.8 cm diameter was buried at the 15 m position along the EW direction, crossing all 7 lines. Targets simulate objects found in archaeological studies, geotechnical and urban planning studies and environmental studies. In this work, comparative analyzes between real and synthetic GPR results on metallic and plastic tanks are shown, as well as EM38 results on metallic tanks. The SCGR-I proved to be an important tool for teaching and research related to the applications of geophysical methods for near surface investigations and could be a motivation to build more test sites.
Pemetaan Sarana Prasarana Pembelajaran PJOK pada Sekolah Menengah Atas (SMA) di Lingkungan Kota Singaraja
Authors: Kadek Tedy Astra Menaka  , I Ketut Budaya Astra  , I Wayan Artanayasa
Published: May 2023

Penelitian ini bertujuan untuk mengetahui pemetaan sarana dan prasarana PJOK SMA di Lingkungan Kota Singaraja. Jenis penelitian ini yaitu deskriptif kuantatif, dengan metode survey. Hasil penelitian menunjukkan terdapat 38 jenis dan jumlah fasilitas pembelajaran yang berbeda. Jika dijumlahkan, maka total fasilitas menjadi 452. Terdapat 58 fasilitas yang kondisinya kurang baik dengan presentase 12,8%. Kemudian, 452 fasilitas yang memiliki sendiri dengan presentase 100%, menyewa 0 fasilitas dengan presentase 0%. Selain yang bersyarat standar, terdapat sebanyak 446 fasilitas atau setara dengan persentasenya 98,7%; untuk yang mengalami modifikasi sebanyak 6 fasilitas atau jika dipersentasekan yaitu 1,3% dari jumlah fasilitas sebanyak 452 fasilitas. Setiap sekolah memiliki sarana dan jumlah yang tidak sama ialah 34, dengan 33 sarana dalam kondisi baik dengan presentase 97,1%  satu sarana kondisi rusak dengan presentase 2,9%. Kemudian, dari 12 macam fasilitas yang ada sebanyak 34, yang memiliki status milik sendiri yaitu 28 melalui besaran persentasenya 82,4%, yang masih tergolong menyewa sebanyak 6 melalui besaran persentasenya 17,6%. Kemudian untuk status kualifikasi dari 34 prasarana untuk yang standart yaitu 27 dengan persentase 79,5% dan modifikasi sebanyak 7 modifikasi dengan persentase 20,5%. Ketersediaan Sarana dan Prasarana pembelajaran Pendidikan Jasmani Olahraga Kesehatan di Sekolah Menengah Atas di Lingkungan Kota Singaraja ini sudah baik, namun pengelolaan, kepedulian serta perawatannya perlu ditingkatkan agar semua sarana penunjang pembelajaran dapat digunakan secara efektif, nyaman serta aman digunakan selama proses pembelajaran PJOK berlangsung. Sekolah diharapkan lebih aktif melakukan pengecekan kelengkapan dan pemeliharaan sarana dan prasarana pembelajaran jasmani olahraga dan kesehatan
Diversidade na Sala de Aula e suas Influências na Formação de Identidades Discentes
Authors: Lopes Maria da Conceição Oliveira , Silva Fabrício Oliveira da
Published: May 2023

O artigo analisa como tem sido o trabalho de professores com a diversidade na educação básica, a partir de narrativas sobre suas práticas de mediação pedagógica desenvolvidas com o intuito de gerar reflexões em torno do processo de formação identitária. A pesquisa trilhou no lastro da discussão acerca de diversidade, identidade, diferença, práticas pedagógicas, nos aportes da metodologia qualitativa, com opção pela entrevista semiestruturada. Os sujeitos participantes foram cinco professoras de História da Educação Básica e três licenciandos em História de uma universidade pública. Os resultados permitem concluir que há percepções dos colaboradores a respeito da importância de desenvolver práticas educativas que contemplem temáticas da diversidade, mas ainda um trabalho tímido, quase que solitário no tocante a uma pedagogia fundamentalmente encorpada sobre o reconhecimento da diversidade e das diferentes identidades presentes na escola.
Relação entre desempenho e indicadores educacionais em duas escolas de ensino médio da rede pública do Ceará
Authors: Noronha Arimaté Alves , Lopes Jayane Mara Rosendo , Medeiros Filho Antonio Evanildo Cardoso de , Vidal Eloisa Maia
Published: May 2023

O artigo investiga a relação entre os resultados de desempenho dos estudantes de duas escolas públicas estaduais de ensino médio, em Fortaleza (CE), e um conjunto de indicadores relacionados à organização escolar e aos docentes, considerando a série histórica de 2010 – 2019. Caracteriza-se como um estudo de natureza quantitativa, com dados obtidos no site do Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira e na Secretaria da Educação do Ceará. A análise permitiu identificar fatores externos e internos à escola que estão relacionados com o desempenho dos alunos nas avaliações de larga escala, como nível socioeconômico, condições de oferta nos dois estabelecimentos, com grandes variações na média de horas aulas diárias, complexidade da gestão escolar e indicadores associados aos professores, como adequação da formação, esforço e regularidade do corpo docente.
Migrações Curriculares
Authors: Chagas Claudia , Machado Marcelo Ferreira , Castro Maria Cecília Sousa de , Lobo Thamy
Published: May 2023

Neste texto, apresentamos um estudo das pesquisas com os cotidianos acerca das travessias curriculares necessárias desde o aparecimento do novo coronavírus. Nosso objetivo é compreender como os ‘praticantespensantes’ das redes educativas estão ressignificando os currículos. Essas redes, que formamos e pelas quais somos formados, possibilitam as criações de ‘Migrações Curriculares’. A partir de um conto de Guimarães Rosa, conversamos com teóricos como Certeau, Bhabha, Deleuze e Alves. Foram implicadas as ‘praticasteoriaspraticas’ dos autores que atuam em diferentes ‘espaçostempos’. A metodologia de pesquisa se dá por meio de conversas com os ‘praticantespensantes’. À guisa de conclusão, entendemos que as travessias curriculares identificam a importância dos sentidos, dos afetos, das artes e da coletividade como caminho para ressignificarmos o mundo e nossa existência.
”Fästingen håller inget säkerhetsavstånd”: Konkurrerande riskdiskurser om fästingar i media
Authors: Lillbroända-Annala Sanna , Winberg Oscar
Published: May 2023

I Finland är fästingen ett återkommande diskussionsämne i medier och människor emellan framför allt under fästingsäsongen som pågår från våren till sena hösten. Bilden och uppfattningen om fästingen som riskfylld och farlig byggs upp i mellanmänsklig interaktion och genom olika medier. I artikeln analyseras med utgångspunkt i begreppet risk hur media och allmänheten konstruerar riskdiskurser kring fästingar i allmänbildande media, tidningsreportage och diskussionsforum. Vi analyserar hur olika medier diskuterar fästingar och hur fästingar upplevs som risk för hälsan, för utförandet av vardagliga sysslor och i förhållande till naturen. Vi förankrar analysen i risk som någonting sociokulturellt, kontextuellt och tidsbundet där medier av olika slag har stor påverkan. 
Materialet består av finländska tidningar och nätdiskussioner från 2000-talet. Därmed ligger artikelns fokus på hur riskdiskurserna och sätten att hantera risk i förhållande till fästingar har byggts upp under de senaste decennierna. Fästingdiskurserna förstärker den generella uppfattningen om att fästingen är Finlands farligaste djur eller åtminstone en av de farligaste som väcker starka känslor och som behandlas i medier och bland den stora allmänheten i provocerande och sensationella ordalag. De motsatta argumenten för fram fästingen som en vardaglig följeslagare som människan har anpassat sig till genom olika hanteringsstrategier och -praktiker.
Editors' Introduction
Authors: Fink Sebastian , Svärd Saana
Published: May 2023

Editors' Introduction to the volume Mesopotamian identities in the last centuries of cuneiform writing by Sebastian Fink & Saana Svärd.
Sources at the end of the cuneiform era
Authors: Alstola Tero , Corò Paola , Da Riva Rocio , Fink Sebastian , Jursa Michael , Kottsieper Ingo , Lang Martin , Monroe M. Willis , Pearce Laurie , Pirngruber Reinhard , Ruffing Kai , Svärd Saana
Published: May 2023

The aim of this article is to discuss several groups of sources which are of special interest regarding the question of Mesopotamian identities after 539 bce, towards the end of the use of cuneiform writing. In this late period, several languages and scripts were in use in Mesopotamia; therefore, groups of Akkadian, Aramaic, Greek, and Sumerian texts are discussed. The scripts used are Aramaic letters, cuneiform, and the Greek alphabet. A scholar who is interested in late Mesopotamian identities needs to take all these documents into account. This article aims at giving a brief overview on available textual material and where to find it. The topics of these texts vary from administrative documents to highly literary texts. The authors discuss Aramaic inscriptions, legal and administrative cuneiform texts, the astronomical diaries, the Seleucid Uruk scholarly texts, the late Babylonian priestly literature, Emesal cult-songs from the Hellenistic period, the Graeco-Babyloniaca (clay tablets containing cuneiform and Greek), and finally Greek inscriptions from Mesopotamia.
Changing Identities at the Turn of the Common Era: The Case of Semiramis
Authors: Droß-Krüpe Kerstin
Published: May 2023

Babylon, a city of shifting identities, was a constant point of reference for the Mediterranean world. This article explores the portrayal of the Babylonian queen Semiramis in Greek and Roman sources, demonstrating how ancient Near Eastern identities were constructed from the external perspective of Mediterranean cultures. Herodotus first mentioned Semiramis in the fifth century bce, associating her with Babylon’s architectural wonders. Ctesias described her as an outstanding, but in many respects flawed military leader. In contrast, during the final stage of the Roman Republic, Diodorus Siculus reshaped Ctesias’ narrative and portrayed her more positively, emphasizing her beauty, virtues, courage, and intelligence. During the Roman Empire, Semiramis remained a remarkable figure who accomplished great deeds, but later authors introduced negative aspects to her story. The Augustan Age portrayed her negatively, with new elements added, such as sodomy and murder, and used her as a stand-in for Cleopatra. Both queens were denigrated as female rulers and foreigners, emphasizing cultural differences between Mesopotamian and Roman identities. The portrayal of Semiramis served to categorize and describe Mesopotamian culture, rather than to understand it. Ultimately, this article shows how Semiramis reflects different perceptions of Babylonia/Assyria and how her portrayal shifted over time in ancient literature, serving as part of Augustan propaganda to pass judgment on Cleopatra and emphasize cultural differences.
Acute Abdominal Pain Caused by Hemorrhagic Corpus Lutheum in Reproductive-Aged Women: A Case Series
Authors: Nugraheni Agnes Indah , Manuaba Ida Ayu Indira Mandini , Manuaba Ida Bagus Nyoman Suardiana
Published: May 2023

Hemorrhage of corpus luteum is a rare condition in women of reproductive age. It is possible for a woman's corpus luteum to have asymptomatic hemorrhaging as a result of blood vessel penetration through the wall of the corpus luteum during the second half of her menstrual cycle. There have been very few occurrences of it growing to be too large and then rupturing. Those who suffer from polycystic ovarian syndrome (PCOS) are at risk for developing this condition. Polycystic ovarian syndrome is characterized by an inflammation of the body's hormonal function, which results in the development of larger ovaries that also include a number of small follicular cysts. The development of cysts on the ovaries, which contribute to the appearance of larger ovaries, is brought on by an abundance of androgen hormones in the body.  In a minority of cases, this enlargement also has the potential to rupture, which is an additional concern. The predominant symptom that presented clinically was sharp pain in the lower abdomen. Because to the fact that HCL may present similarly to other conditions, diagnosis might be difficult. We present and discuss three cases of young female patients who presented with acute abdominal pain, large-volume of hemoperitoneum, and anemia. Laparoscopic examination in each case showed a hemorrhagic corpus luteal cyst.
IMPLEMENTASI MODEL PEMBELAJARAN BERBASIS MASALAH TEKNIK POLYA TERHADAP HASIL BELAJAR FISIKA MATEMATIKA II
Authors: Tanjung Yul Ifda
Published: May 2023

Penelitian dilakukan untuk mengetahui bagaimana pengaruh model pembelajaran berbasis masalah dengan teknik Polya terhadap hasil belajar dan aktivitas mahasiswa pada mata kuliah Fisika Matematika II. Penelitian ini merupakan penelitian quasi eksperimen dengan populasi penelitian adalah mahasiswa Prodi Pendidikan Fisika Jurusan Fisika Universitas Negeri Medan. Pemilihan sampel dilakukan dengan teknik cluster random sampling. Penelitian melibatkan dua kelas yaitu kelas kontrol dan kelas eksperimen yang diberi perlakuan berbeda. Pada kelas eksperimen diberi perlakuan model pembelajaran berbasis masalah teknik Polya dan pada kelas kontrol diberi perlakuan pembelajaran konvensional. Instrumen yang digunakan terdiri dari tes uraian berbentuk masalah dengan pedoman penskoran teknik Polya, dan instrumen observasi aktivitas mahasiswa. Data dalam penelitian ini dianalisis menggunakan pengujia hipotesis uji t dua pihak. Hasil penelitian menunjukkan bahwa ada pengaruh model pembelajaran berbasis masalah teknik Polya terhadap hasil belajar dan aktivitas mahasiswa pada mata kuliah Fisika Matematika II.
Menganalisis Pencemaran Daerah Aliran Sungai (DAS) Akibat Limbah Domestik di kota Medan
Authors: Megalina Yeni
Published: May 2023

Penelitian ini bertujuan untuk mengetahui pencemaran berdasarkan  parameter fisika, kimia dan biologi serta menganalis pencemaran di DAS Deli. Yang uji sampelnya diambil dari empat sub DAS dari DAS Deli bagian tengah. Sampel parameter berupa air sungai dari empat sub DAS yang dibagi menjadi empat stasiun yaitu stasiun IA dan IB berasal dari Sub DAS Sei Kambing, stasiun II A dan II B berasal dari Sub DAS Babura, stasiun III A dan III B bersal dari Sub DAS Deli, sedangkan stasiun IV A dan IV B berasal dari Sub DAS Kwala Bekala. Parameter kimia yang diuji adalah deterjen, DO, BOD, khlorida, nitrat dan nitrit. Parameter biologi yang di uji adalah Total Coliform. Sedangkan untuk parameter fisika yang di uji adalah suhu,konduktivitas,salinitas dan kekeruhan. Metede yang digunakan adalah metode survei. Menganalisis data  menggunakan software Surfer 10 dan Microsoft Excel. Hasil Penelitian yang di peroleh menunjukkan adanya tingkat pencemaran pada parameter fisika,kimia dan biologi di DAS Deli. Produk yang dihasilkan yaitu analisis pencemaran DAS akibat limbah rumah tangga. Diharapkan analisis menjadi informasi bagi masyarakat untuk lebih waspada agar menggunakan air sungai sebagai aktivitas sehari-hari.