bluuebunny/crossref_metadata_2025 huggingface dataset:
INTELIGÊNCIA ARTIFICIAL E ENSINO DE QUÍMICA: UMA ANÁLISE PROPEDÊUTICA DO CHATGPT NA DEFINIÇÃO DE CONCEITOS QUÍMICOS
Authors: Leite Bruno
Published: May 2023

ARTIFICIAL INTELLIGENCE AND CHEMISTRY TEACHING: A PROPAEDEUTIC ANALYSIS OF CHATGPT IN CHEMICAL CONCEPTS DEFINING. The use of artificial intelligence (AI) in education is a current topic and in Chemistry teaching it has the potential to offer some benefits. This article is the first attempt to show that activities involving Chemistry can be accelerated with the help of AI. This is a propaedeutic study that aimed to analyze the contributions of the ChatGPT AI in defining chemical concepts. The research was conducted in the virtual environment of the chatbot and was carried out in four stages. The results show that ChatGPT can be used in Chemistry teaching as an aid to the teaching and learning process. Additionally, depending on the chemical concept, AI provided coherent answers but could lead students to difficulties in understanding. Finally, the use of ChatGPT in Chemistry teaching needs to be guided by a process of reflection, so that from the AI’s responses, students present critical thinking, the teacher considers it as just another resource in Chemistry teaching, besides other actions that can be developed in Chemistry teaching to ensure that the ChatGPT AI is used ethically and responsibly.
Microbiological safety criteria for products from unconventional raw materials: raw bear fat
Authors: Vechtomova Elena , Dolgolyuk Irina , Orlova Maria , Zaushintsena Alexandra
Published: May 2023

Fat of game animals is a prospective raw material for bioactive additives. Before such a product enters the market, food science has to make sure it is safe for consumption.

This research featured subcutaneous adipose tissue of brown bears tested with standard methods for microbiological safety indicators. The microbial properties were studied on liquid and solid nutrient media. Staphylococcus was profiled using a VITEK 2 Compact biochemical automatic analyzer and Gram-positive cards (Bio-Mérieux, France). The analysis followed the Technical Regulations of the Customs Union TR TS 021/2011 On Food Safety (December 09, 2011).

The microbial count for mesophilic aerobic and facultative anaerobic microorganisms was 1.5×103 CFU/g. The fat samples revealed no molds, yeasts, or Escherichia coli bacteria. Liquid and solid nutrient media made it possible to describe the qualitative profile and cultural properties of the bear fat microflora against pork fat, which served as control. The automatic system identified Gram-positive, coagulase-negative, and oxidase-positive Staphylococcus lentus and Staphylococcus sciuri. In line with the modern classification, they belong to the new genus of Mammaliicoccus, namely Mammaliicoccus sciuri.

Subcutaneous adipose tissue of brown bears needs to undergo a microbiological safety test before consumption. Bear fat requires additional research in order to become a safe raw material for food products and bioactive additives.
Spatiotemporal characteristics of hydro-meteorological droughts and their connections to large-scale atmospheric circulations in the Kelantan River Basin, Malaysia
Authors: Suhana Lily , Tan Mou Leong , Luhaim Zibeon , Ramli Mohd Hilmi P. , Subki Noor Syuhadah , Tangang Fredolin , Ishak Asnor Muizan
Published: May 2023

Climate change exacerbates dry seasons in Southeast Asia, leading to water supply shortage. However, the link between hydro-meteorological droughts and large-scale atmospheric circulations, such as the El Nino Southern Oscillation (ENSO), Indian Ocean Dipole (IOD), and Madden–Julian oscillation (MJO), has received very little attention. Therefore, this study aims to analyse the hydro-meteorological droughts that occurred in the Kelantan River Basin (KRB) between 1985 and 2020 using the Standardized Precipitation Index (SPI) and Standardized Streamflow Index (SSI) as well as their connections to ENSO, IOD, and MJO. Sen's slope and Mann–Kendall test were employed to evaluate the trends and magnitude changes of the historical droughts, respectively. In addition, the response rate of SSI to SPI was considered to understand how precipitation affects streamflow. The results show that extremely dry events occurred in 1986, 1987, 1989, 1990, 1992, 1997–1998, 2015–2016, and 2020. Based on the SSI results, more than 70% of extremely dry periods last 6 months or longer. Interestingly, from January to May, when there was low precipitation, SSI had a higher response rate to SPI. The ENSO, as opposed to the IOD and MJO, had a stronger impact on the dry conditions over the KRB.
Substantiation of the optimum screen brightness parameters of the interactive panel to reduce the risk of general and visual fatigue of schoolchildren
Authors:   National Medical Research Center for Children’s Health, 2 Lomonosovskii Ave., bldg 1, Moscow, 119991, Russian Federation, Ayzyatova M.V. , Aleksandrova I.E. ,   National Medical Research Center for Children’s Health, 2 Lomonosovskii Ave., bldg 1, Moscow, 119991, Russian Federation, Lashneva I.P. ,   National Medical Research Center for Children’s Health, 2 Lomonosovskii Ave., bldg 1, Moscow, 119991, Russian Federation, Kurgansky A.M. ,   National Medical Research Center for Children’s Health, 2 Lomonosovskii Ave., bldg 1, Moscow, 119991, Russian Federation
Published: May 2023

The digital transformation of modern education contributes to the active introduction of interactive panels (IP) into the educational process, replacing traditional chalkboards. Minimizing possible risk factors when using an IP also requires considering the visual characteristics of its screen. At present, there are no results of such studies in the scientific literature. The purpose of this work was to substantiate the optimal range of IP screen brightness when it is used in the classroom to prevent general and visual fatigue of schoolchildren. We analysed research articles describing studies in visual hygiene, lighting engineering, display technologies, etc. Our study involved measuring brightness and pulsation coefficient of a working IP screen. Ranges of IP screen brightness that could produce harmful effects on children's health have been empirically established. With the help of a specially designed questionnaire, complaints of students attending the 4th grade of secondary schools were studied to identify general and visual fatigue, as well as factors caused by the IP and negatively affecting the respondents’ well-being. The relative risk values are calculated, namely a probability that these complaints would occur in schoolchildren, depending on parameters of IP screen brightness. The optimal range of IP screen brightness is justified for a working mode that significantly reduces the probability of students complaining about general and visual fatigue. Monitoring and correction of IP screen brightness mode during classes will reduce the risks of students' health disorders. It is necessary to continue research to substantiate the optimal visual characteristics of the IP screen based on investigating indicators describing the functional state of the child's body.
Job design for crane operators based on fatigue aspects and mental workload in Indonesia
Authors:   Universitas Muhammadiyah Surakarta, Jl. Jend. A Yani Tromol Pos 1 Pabelan, Surakarta 57102, Indonesia, Pratiwi I. , Oktaviara S. ,   Universitas Muhammadiyah Surakarta, Jl. Jend. A Yani Tromol Pos 1 Pabelan, Surakarta 57102, Indonesia
Published: May 2023

Terminal Teluk Lamong (TTL) in Indonesia is a company that operates in service sector managing a multipurpose terminal. It provides various services such as loading and unloading containers and dry bulk using integrated crane tools that employ the first semi-automatic facilities and infrastructure in Indonesia. Crane operators’ work involves risks of work accidents because they operate at heights and their job tasks require high concentration. This study aimed to find out fatigue levels and mental workloads typical for workplaces of crane operators and to analyze and assess working conditions. The study results gave grounds for developing recommendations on how to improve workplaces of STS and GSU crane operators who deal with loading and unloading containers and dry bulk cargoes at a seaport. The relevant data were obtained by questioning 56 STS and GSU crane operators working in four shifts, 6 hours each. We used an employee identity questionnaire as well as SOFI and NASA TLX questionnaires. The results were analyzed to obtain scores for estimating fatigue levels and mental workloads. Statistical analysis involved correlation and regression tests on two variables on STS and GSU crane operators. Upon completion, some recommendations were suggested as regards necessary changes into work process and longer rest in order to reduce fatigue and mental workloads for operators. The SOFI questionnaire established medium fatigue levels of STS and GSU operators but mental workloads turned out to be high. The correlation test did not reveal any correlation between fatigue and mental workloads for STS crane operators. It was shown that fatigue could be overcome by adequate rest, well-balanced diet rich with nutrients, and relevant exercise. At the same time, arranging work shifts more rationally, socializing, and training on the importance of fatigue awareness can reduce high mental workloads. The study results can help prevent or reduce increased fatigue and mental workloads that can lead to work accidents.
Polymorphisms of xenobiotic metabolism enzyme genes cyp2e1, gstm1, gstt1, ephx1 as biomarkers of sensitivity to exposure to water disinfection byproducts (using chloroform as an example)
Authors:   Scientific and Practical Center for Hygiene, 8 Akademicheskaya Str., Minsk, 220012, Republic of Belarus, Drazdova E.V. , Kaliasniova K.V. ,   Scientific and Practical Center for Hygiene, 8 Akademicheskaya Str., Minsk, 220012, Republic of Belarus, Syakhovich V.E. ,   National Anti-Doping Laboratory, 31 ag. Lesnoi, Minsk region, 223040, Republic of Belarus, Dalhina N.А. ,   Scientific and Practical Center for Hygiene, 8 Akademicheskaya Str., Minsk, 220012, Republic of Belarus
Published: May 2023

Chloroform accumulation in the body and the increase in its steady-state concentrations in blood of exposed people have been established to be associated with polymorphisms of enzyme genes in a genotype involved in metabolism of water disinfection byproducts (A415G of EPHX1 gene, C1091T of CYP2E1 gene, zero mutations of GSTT1 and GSTM1 genes) (р < 0.000001). These polymorphisms in a genotype correlate with higher chloroform levels in blood of people consuming chlorinated drinking water: by 43.8 % and higher for GSTM1 gene polymorphism; by 68.2 % and higher for GSTT1; by 80.4 % and higher for EPHX1 (р < 0.01). EPHX1 genetic polymorphism makes chloroform accumulation much more probable (levels in blood ≥ Р75), which is the most pronounced when combined with GSTТ1 genetic polymorphism. The study results allow us to consider hetero- and homozygous polymorphic genotypes AG/GG for the EPHX1 gene, CT/TT for the CYP2E1 gene, and the null allele in the GSTT1 and GSTM1 genes as genetic predisposition factors for chloroform accumulation in the body. This increases the probability of health outcomes associated with chronic exposure to this disinfection byproduct. The A415G polymorphism of the EPHX1 gene and null alleles of GSTT1 gene, their combinations including the combination with the null allele of the GSTM1 gene and/or the C1091T polymorphism of the CYP2E1 gene can be used as the most informative biomarkers of sensitivity when assessing risks associated with exposure to trihalomethanes (chloroform) at levels not exceeding MPC in water.
Health disorders in workers associated with health risks at workplaces in mining industry in the Arctic (Analytical review)
Authors:   Krasnoyarsk Regional Office of the Federal Service for Surveillance over Consumer Rights Protection and Human Wellbeing, 21 Karatanova Str., Krasnoyarsk, 660097, Russian Federation, Fadeev А.G. , Goryaev D.V. ,   Krasnoyarsk Regional Office of the Federal Service for Surveillance over Consumer Rights Protection and Human Wellbeing, 21 Karatanova Str., Krasnoyarsk, 660097, Russian Federation, Zaitseva N.V. ,   Federal Scientific Center for Medical and Preventive Health Risk Management Technologies, 82 Monastyrskaya Str., Perm, 614045, Russian Federation, Shur P.Z. ,   Federal Scientific Center for Medical and Preventive Health Risk Management Technologies, 82 Monastyrskaya Str., Perm, 614045, Russian Federation, Redko S.V. ,   Federal Scientific Center for Medical and Preventive Health Risk Management Technologies, 82 Monastyrskaya Str., Perm, 614045, Russian Federation, Fokin V.А. ,   Federal Scientific Center for Medical and Preventive Health Risk Management Technologies, 82 Monastyrskaya Str., Perm, 614045, Russian Federation
Published: May 2023

The review analyzes a range and prevalence of health disorders in workers employed at mining enterprises in the Arctic and exposed to heterogeneous occupational factors. We revealed that working processes typical for basic occupations in under-ground mining involved exposure to a set of heterogeneous harmful and (or) hazardous occupational factors such as intense occupational noise; elevated vibration; aerosols with predominantly fibrogenic effects, dusts and chemicals; high hardness and intensity typical for physical work; non-ionizing electromagnetic radiation. It was shown that diseases of the ear and mastoid, vibration syndrome, diseases of the musculoskeletal system, respiratory diseases and diseases of the nervous system prevailed both in the structure of general morbidity and in occupational one typical for miners. To create proper working conditions and to minimize effects of harmful and hazardous occupational factors as well as occupational health risks, it is advisable to perform comprehensive hygienic assessment of introduced equipment, machinery and mechanisms; to establish levels and doses of occupational factors. Engineering and technical, technological, medical and preventive and treatment and health-improving activities should be developed on this basis with special emphasis on such occupational groups as drift miners, drill-operators, blasters, timbermen, operators of cargo handling machinery, drilling unit operators, miners in mining outputs and faces, repairmen, and electric gas welders. It seems extremely vital to apply risk assessment methodology to assess occupational health risks for workers employed in mining operations in the Norilsk industrial region considering climatic features of the Arctic. This assessment is important for substantiating relevant activities aimed at managing such risks and protecting workers’ health.
Meta-analysis of the Impact of Bariatric Surgery on Circulating
TMAO Levels as a Predictor of Cardiovascular Disease Risk
Authors: Jamialahmadi Tannaz , Simental-Mendia Luis E. , Zengin Gokhan , Almahmeed Wael , Kesharwani Prashant , Sahebkar Amirhossein
Published: May 2023

Introduction:

Trimethylamine N-oxide (TMAO) is a metabolite of the gut microbiota
that is considered a cardiovascular risk factor. Because bariatric surgery (BS)
produces changes in the composition of the gut microbiota, the production of TMAO can
be compromised. Thus, the purpose of this meta-analysis was to determine the effect of
BS on circulating TMAO levels.

Methods:

A systematic search was carried on in Embase, PubMed, Web of Science, and
Scopus databases. The meta-analysis was conducted using Comprehensive Meta-Analysis
(CMA) V2 software. The overall effect size was determined by a random-effects metaanalysis
and the leave-one-out approach.

Results:

Random-effects meta-analysis of 5 studies consisting of 142 subjects demonstrated
a significant increase in circulating TMAO levels after BS (SMD: 1.190, 95% CI:
0.521, 1.858, p<0.001; I2:89.30%).

Conclusion:

Considering that levels of TMAO are affected after BS due to gut microbial
metabolism alteration, there has been a significant elevation in TMAO concentrations observed
to occur after BS in obese subjects.
The Influence of KIR Gene Polymorphisms and KIR-ligand Binding on Outcomes in Hematologic Malignancies following Haploidentical Stem Cell Transplantation: A Comprehensive Review
Authors: Bakhtiari Tahereh , Ahmadvand Mohammad , Salmaninejad Arash , Ghaderi Afshin , Yaghmaie Marjan , Sadeghi Alireza , Mousavi Seied Asadollah , Rostami Tahereh , Ganjalikhani-Hakemi Mazdak
Published: May 2023

Natural killer (NK) cell behavior and function are controlled by a balance between negative or positive signals generated by an extensive array of activating and inhibiting receptors, including killer cell immunoglobulin-like receptor (KIR) proteins, main components of the innate immune system that contribute to initial responses against viral infected-transformed cells through generation of the release of cytokines and cytotoxicity. What is certain is that KIRs are genetically polymorphic and the extent of KIRs diversity within the individuals may have the potential outcomes for hematopoietic stem cell transplantation (HSCT). In this regard, recent studies suggest that KIR is as imperative as its ligand (HLA) in stem cell transplantation for malignant diseases. However, unlike HLA epitope mismatches, which are well-known causes of NK alloreactivity, a complete understanding of KIR genes' role in HSCT remains unclear. Because of genetic variability in KIR gene content, allelic polymorphism, and cell-surface expression among individuals, an appropriate selection of donors based on HLA and KIR profiles is crucial to improve outcomes of stem cell transplantation. In addition, the impact of the KIR/HLA interaction on HSCT outcomes needs to be investigated more comprehensively. The present work aimed to review the NK cell regeneration, KIR gene polymorphisms, and KIRligand binding on outcomes in hematologic malignancies following haploidentical stem cell transplantation. Comprehensive data gathered from the literature can provide new insight into the significance of KIR matching status in transplantations.
HAT Wars: The Political History of Heroin-Assisted Treatment
Authors: Hallam Christopher
Published: May 2023

 This chapter examines the historical development of heroin-assisted
treatment from the early twentieth century to the present day. It sketches the
philosophical underpinnings of those controversies surrounding the treatment, and the
ways in which they have shaped the political and related drug-control environments in
which debates over heroin-assisted treatment, and maintenance prescribing more
broadly, have taken place. Within this rhetorical context, it argues that most of the
notoriety of heroin and the harms with which it is associated stem, in fact, from the
policies and controls about the drug, and contend that HAT mixes progressive
intentions and methods with elements taken over from the repressive modalities of
prohibitive drug control, rendering it a conflicted treatment that remains problematic
for people who use heroin.
Epidemiological Models to Assess Heroin Epidemic Waves and Treatment Outcomes
Authors: Rossi Carla
Published: May 2023

Researchers have recognized, for more than half a century, the similarities
between the modes of spread of drug use and those of infectious diseases. Such an
assumption allows one to model the consequences of drug use and epidemiological
indicators and, using available data, to make impact assessments of drug policies and
short- and medium-term predictions of interventions, which modify visible and hidden
aspects, such as prevalence and/or incidence to be estimated.
A crucial issue concerns models with “closed populations” or with “open populations.”
The former consider fixed populations, with no inputs (births, immigration, etc.), only
deaths can occur, and allow only short-term predictions; the open population models,
more complex, allow medium- and long-term predictions of policy interventions,
providing information to decision-makers. Recent data on the visible consequences of
heroin/opioid use (overdoses, emergency interventions, etc.) and Eurostat's recent
European estimates of the rapidly growing heroin market (in Italy, over 64% growth
between 2011 and 2019) show that a second epidemic wave of heroin use is currently
underway. In contrast, in Denmark, as well as in Switzerland, there is definitely an
'endemic' behavior of heroin use, confirmed by the data on overdose deaths, which is
very low in Denmark and decreasing for young people in Switzerland. The main cause
of this is the so-called Heroin Assisted Treatment (HAT), used in Switzerland for more
than 25 years, and in Denmark for more than 12 years, which can be called the anti prohibitionist approach to treatment. The dynamic model, shown here, mathematically
demonstrates the effectiveness of HAT. 
Catalytic Applications of Cerium-based Materials
Authors: Yadav Nisha , Mishra Vivek
Published: May 2023

This chapter pivots on the employment of Ce-based catalysts in numerous
catalytic applications glancing at the foremost commercial technologies due to their
high abundance in the earth’s crust. Ceria in essence to their proficiency to harmonize
Ce (III) & Ce (IV)-oxidation states depending on oxygen availability, which is known
as oxygen-storage capacity, is at the heart of the potentiality of Ce-based materials to
exemplify as a catalyst in numerous reactions. Ceria being one of the most auspicious
materials in use since 1980 onwards, has strongly dilated to affect several processes for
chemical transformations by and large for energy and environmental applications. In
this chapter, we will review some of the ingrained applications of Ce-based catalysts
and, we will try to display a brief rundown of emerging technologies in this ongoing
field to encourage further reading.
Biomass: A Sustainable Foundation for Bioenergy and Bioremediation - It’s Confronts and Scenarios in the COVID-19 Era: A Review
Authors: Pratap S.R. , Rangaraju H.G. , Mohamed Shamshuddin S.Z. , Nagaraju N. , Mubarak N.M. , Mohan Kumar T.E. , Manjunath Gowda M.R. , Lohith N. , Srinidhi S. , Kiran Gowd M.R. , Nagesh S.B.
Published: May 2023

 Various nations have distinct visions/missions and energy implementation
strategies. Energy sources are essential to a nation's economic development and a
necessity for all inhabitants. Several nations face varying degrees of energy catastrophe
as a result of insufficient natural resources today mixed with the COVID-19 outbreak.
This emergency led to the shutdown of numerous industrialized divisions exacerbated
unemployment, constrained energy access, and associated societal shocks. A
fundamental reason for these conflicts is the widening chasm between energy delivery
and orders, financial issues, logistics, and irrelevant strategic planning considerations.
The use of bioresources as a novel source of waste biomass was identified as a crucial
criterion for bridging the gap and creating a vast outlook for an environmentally
friendly biorefinery and bioremediation process. This presents a potential obstacle, as it
suggests a replacement for fossil fuels in the production of specialty compounds and
energy carriers. As a carbon-neutral mode/s, this reduces market anxiety and negative
environmental repercussions. This ecological bioremediation with the use of biomass
(phytoremediation), less expensive sorbents (for bioaccumulation and biosorption), and microorganisms (mainly agricultural byproducts) is more favorable than conventional
ones.
Simulation Results of Sanitized Vehicle Parking System
Authors: Churamani Pranay , Chopra Anjali , Kumar Paul Parthish
Published: May 2023

Simulating a futuristic idea for the implementation of an innovative,
efficient and economic sanitization-based parking system is the fulcrum of this paper.
This paper depicts the simulation results of the previous chapter, “Sanitized Vehicle
Parking System”, designed to solve parking problems and ensure customers' safety.
Proteus 8 is the simulating software that has the ability to depict all the components
used and their functionality in real-time. Arduino IDE is the coding platform
incorporated with the Proteus 8 software. Arduino IDE has a lot of advantages over
other platforms; one of them is extremely simple and flexible. This model will
visualize the simulation results in detail which have been achieved and can be
implemented in all the parking compartments with an upper hand over other parking
systems by being completely automatic. Sanitization is the most crucial aspect
responsible for the design of this system, as this parking system will sanitize all the
automobiles entering the parking lot. This model has been divided into three
compartments. The 1st section is responsible for sanitizing the vehicles entering the
parking area. The 2nd section operates as the entry point of the parking area, automated
through infrared sensors. Simultaneously the count gets incremented by 1, which gets
displayed on the LCD Screen. The 3rd section operates as the exit point of the parking
area. Each vehicle exiting from the parking area decrements the count by 1. Water-Level sensors are also employed to detect and measure the sanitizing fluid left in the
vessel at different stages. The detailed simulation results for the sanitizing dispenser
system are displayed on the LCD screen, indicating the next course of action in case of
emptying the sanitizing liquid. The infrared sensors entirely handle the entry and exit
points.
Role of Quantum Computing in Transformation of Artificial Intelligence - A Review
Authors: Krishan R.
Published: May 2023

It is anticipated that the capabilities of quantum computers will substantially
advance the field of Artificial Intelligence (AI). Quantum computing is similar to
conventional computing, which encodes data using bits of 0s and 1s. Quantum
computing, however, has its variant of data encoding known as quantum or qubit. AI
processes complex datasets and is useful in the development of algorithms to create
better learning and understanding environments. Researchers are working on
employing quantum computing techniques to achieve the goals of AI. This chapter
reviews the correlation between quantum computers and artificial intelligence and its
future scope.
Gesture-Based Secure Pin Entry in ATM
Authors: Thakur Akhilesh , Aryan Ashish , Kumar Jayendra , Kumar Roshan , Anumeha Bentham Science Publisher
Published: May 2023

At present, ATMs (Automated Teller Machines) are one of the essential
services for our daily life. It is also true that the thefts of false transactions and pin
thefts are increasing yearly. A significant amount of theft at ATMs is due to pin
overlooking and card skimming. Biometrics provide promising security but have high
implementation costs. Also, Indian laws discourage using BiometricsBiometrics in all
places. So, can AI be the solution to this problem? Instead of using keypad-based
inputs for pins, gesture detection with AI can be used for secure inputs. A trained deep
neural network can detect count from the hand symbols/gestures. The gesture input is
given by inserting the hand inside a safe box with a high-resolution camera attached.
The camera takes images and sends them to Raspberry Pi or any other embedded
system. The Raspberry Pi executes the lightweight ML model to detect the count. The
detected count is then encrypted and passed to the ATM. Using a gesture identification
system removes the problem of pin theft and can be developed and implemented with
the slightest modification in ATMs. In the current COVID period, execution of ATM
works with minimum contact to public surfaces has increased immensely. In this
system, a keypad is also removed and can further be incorporated to read a variety of
inputs from gestures instead of just hands. This chapter explores how lightweight
neural networks can be trained to detect sensors and run on low-processing systems
like Raspberry Pi. We achieved an accuracy of 94%-97% in detecting gestures and pins
where accuracy varies for each motion.
use of information and communication technologies in the process of teaching English after the COVID-19 pandemic
Authors: Reyes-Avila Roxana Margarita , Reyes-Avila Jesús Orley , Obando-Mejía Isamar Gissela
Published: May 2023

The research was carried out at Eloy Alfaro University, in the Chone extension. The objective was to analyze the use of information and communication technologies in teaching the English language after the Covid-19 pandemic. It was a difficult stage for schools, including universities, because students and teachers were not prepared for the change from face-to-face to virtual classes, so they had to take measures to continue with the planned programs. The English subject also changed; in this sense, it was necessary to adapt to the conditions. The quantitative and qualitative method was used to identify, analyze, and describe information and communication technologies in the English teaching process, in addition to desk research, which is based on searching for the published material in reliable reports and documents. Was obtained as results that the technologies used by teachers and students in the English language teaching process after the Covid-19 pandemic showed that teachers were able to respond positively and incorporate new technologies into the English language teaching process, demonstrating that new methodological schemes have evolved, strengthening and invigorating teaching: in addition to contextualizing the research before and after isolation.
PERSEPSI PESERTA DIDIK DAN GURU BIOLOGI SMA DI KABUPATEN KLATEN TERHADAP PEMBELAJARAN DARING BIOLOGI
Authors: Sanjiwani Vincentis
Published: May 2023

Sekolah menengah atas di Kabupaten Klaten mengadakan pembelajaran daring biologi selama pandemi COVID-19, namun karena program pembelajaran tersebut cenderung baru maka perlu evaluasi yang didasarkan dari sudut pandang atau persepsi subyek pembelajaran. Penelitian ini dilakukan untuk mengetahui persepsi peserta didik jurusan MIPA dan guru biologi di SMA wilayah Kabupaten Klaten. Penelitian ini merupakan penelitian deskriptif dengan pendekatan kuantitatif. Metode yang digunakan adalah metode survei, dengan instrumen penelitian berupa angket model skala Likert. Persepsi peserta didik dan guru diamati berdasarkan tiga indikator yaitu penerimaan, pemahaman, dan penilaian terhadap pembelajaran daring biologi. Subjek penelitian adalah peserta didik dan guru biologi di SMAN 1 Cawas, SMAN 1 Ceper, dan SMAN 3 Klaten sejumlah 365 peserta didik dan 10 guru. Teknik analisis data menggunakan teknik statistik deskriptif di mana hasil diambil dari nilai rerata setiap indikator. Hasil penelitian menunjukkan bahwa persepsi peserta didik jurusan MIPA di ketiga SMA tersebut positif dengan skor 3,5359; sedangkan keseluruhan persepsi guru biologi di ketiga SMA tersebut positif dengan skor rerata 3,6059. Peserta didik dan guru biologi masing-masing sekolah memiliki persepsi yang cenderung positif terhadap pembelajaran biologi, kecuali peserta didik SMA Negeri 1 Ceper yang memiliki persepsi cenderung netral.
Deskripsi Kemampuan Komunikasi Matematis Siswa pada Materi Sistem Persamaan Linear Dua Variabel
Authors: Sari Nadia Nopita , Kurniawati Nia , Wijaka Ratih Nonisa
Published: May 2023

Penelitian ini bertujuan untuk mendeskripsikan kemampuan komunikasi matematis siswa pada materi sistem persamaan linear dua variabel. Penelitian ini merupakan penelitian kualitatif dengan jenis penelitian yang digunakan adalah deskriptif. Subjek penelitian ini adalah siswa SMP kelas VIII yang ada di lingkungan RT. 31 RW. 04 Kandang Mas Kota Bengkulu. Pemilihan subjek dalam penelitian ini menggunakan teknik purposive sampling. Teknik pengumpulan data yang digunakan adalah tes dan wawancara. sehingga diperoleh gambaran kemampuan komunikasi matematis siswa.  Adapun instrumen yang digunakan adalah soal tes kemampuan komunikasi matematis berupa 3 butir soal uraian. Teknik analisis data yang digunakan dalam penelitian ini meliputi reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa siswa RF dan AC memiliki kemampuan komunikasi matematika yang tergolong tinggi, siswa RF dan AC sudah mampu menafsirkan simbol-simbol matematika, dan menyelesaikan permasalahan secara tepat dan jelas. Sedangkan siswa AF dan RI memiliki kemampuan komunikasi matematika yang tergolong rendah, siswa AF dan RI hanya mampu menafsirkan  dan menyelesaikan soal secara sederhana. Kata Kunci: Komunikasi Matematis
Pengembangan Soal Penalaran Tipe TIMSS Konten Aljabar Kelas VIII
Authors: Lesiana Freti , Susanti Ely , Putri Ratu Ilma Indra , Aisyah Nyimas
Published: May 2023

Penelitian ini bertujuan untuk menghasilkan soal penalaran tipe TIMSS konten aljabar yang valid dan praktis. Metode yang digunakan adalah design research tipe development studies yang melalui dua tahap yaitu preliminary dan formative evaluation yang terdiri dari self-evaluation, expert review, one-to-one, small group, dan field test. Teknik pengumpulan data yang digunakan adalah walkthrough, wawancara, dan tes. Subjek penelitian ini adalah siswa kelas VIII. 1 SMP N 19 Palembang. Hasil dari penelitian ini menghasilkan (1) suatu produk soal penalaran matematika tipe TIMSS konten aljabar sejumlah 5 soal berbentuk soal uraian yang valid dan praktis. (2) soal matematika tipe TIMSS konten aljabar yang dikembangkan mempunyai efek potensial terhadap kemampuan penalaran siswa dimana skor rata-rata siswa mencapai 75,7 yang dikategorikan baik.
Pengembangan Instrumen Asesmen Berpikir Tingkat Tinggi pada Matematika SMP Materi Bangun Ruang Sisi Datar
Authors: Rosyidin Muhammad Ali
Published: May 2023

Penelitian ini bertujuan untuk menghasilkan instrumen asesmen yang melatih berpikir tingkat tinggi pada mata pelajaran matematika SMP materi bangun ruang sisi datar yang valid dan reliabel serta memiliki daya pembeda, dan tingkat kesukaran yang baik. Penelitian ini merupakan penelitian pengembangan (research and development) yang diadaptasi dari tipe yang dikembangkan oleh Tessmer yaitu formative research yang terdiri dari 4 tahapan, yaitu tahap preliminary, tahap self-evaluation, tahap prototyping, dan tahap field test. Hasil penelitian menunjukkan instumen asesmen berupa soal tes yang terdiri dari empat butir soal uraian dari aspek kejelasan, ketepatan isi, relevansi dan ketepatan bahasa dinyatakan valid dan layak digunakan. Instrumen tersebut mempunyai koefisien reliabilitas sebesar 0,7901 sehingga memenuhi kriteria reliabel, rata-rata tingkat kesukaran 0,5 pada kategori sedang dan rata-rata daya pembeda 0,5 pada kategori baik. Hasil dari penelitian ini diharapkan dapat memberikan ide dalam membuat atau mengembangkan soal yang berkualitas serta menjadi bahan informasi yang bermanfaat.
Analisis Miskonsepsi Nilai Tempat Bilangan Dua Angka pada Siswa Kelas I SDS Islam Al-Hidayah
Authors: Nabila Cahyani , Pujiastuti Heni
Published: May 2023

Konsep-konsep yang diajarkan pada tingkat sekolah dasar, sangat krusial dan berperan penting untuk meningkatkan pemahaman dasar siswa pada mata pelajaran Matematika. Sehingga, jika terdapat kesalahan dalam konsep, maka dapat menghambat proses berpikir anak dalam mencermati suatu persoalan. Penelitian ini bertujuan untuk menganalisis adanya kesalahan dalam pemahaman konsep atau miskonsepsi materi nilai tempat bilangan dua angka. Pendekatan penelitian ini tergolong dalam deskriptif kualitatif. Hasil penelitian ini mengungkapkan bahwa terdapat beberapa siswa mengalami kesalahan konsep. Siswa menganggap bahwa dua puluh sembilan, dilambangkan dengan 209. Siswa pun belum bisa menghitung lebih dari 20. Penjumlahan antara dua angka belum bisa dioperasikan dengan baik karena masih banyaknya miskonsepsi nilai tempat bilangan itu sendiri. Siswa menganggap bahwa angka puluhan, ditulis bersama dengan angka 0. Maka, subjek pada penelitian ini mengalami miskonsepsi mendasar dalam materi nilai tempat bilangan khususnya dua angka.
Pengembangan Media Pembelajaran Berbasis Video Tutorial pada Mata Kuliah Mekanika Analitik
Authors: Kusairoh Entina Nesti , Rahmawati Ratna , Sari Nadia , Setiaji Bayu
Published: May 2023

Pemanfaatan teknologi dan komunikasi dalam pembelajaran semakin menguatkan alasan pengembangan dan pemanfaatan penggunaan teknologi dalam proses pembelajaran. Hal ini dapat juga mempermudah untuk memahami berbagai pembelajaran yang dirasa sulit salah satunya dengan menggunakan video tutorial. Penelitian ini bertujuan untuk menghasilkan media pembelajaran berbasis video tutorial pada mata kuliah mekanika analitik agar mempermudah peserta didik dalam belajar serta mengetahui tingkat kelayakan media pembelajaran berbasis video tutorial yang dibuat. Jenis penelitian yang digunakan adalah penelitian dan pengembangan (research and development). Subjek penelitian adalah mahasiswa pendidikan fisika dan dosen ahli di bidang pendidikan fisika. Pengumpulan data yang digunakan yaitu dengan kuesioner analisis data kuantitatif.
Kemampuan Penalaran Siswa Menggunakan Soal PISA Konteks Vaksinasi Covid-19
Authors: Saleha Atikarani Noer , Zulkardi Zulkardi , Putri Ratu Ilma Indra , Susanti Ely
Published: May 2023

Penelitian ini bertujuan untuk mendeskripsikan proses bernalar siswa menggunakan soal PISA konteks vaksinasi covid-19. Jenis dan pedekatan yang digunakan pada penelitian ini adalah deskriptif kualitatif, dengan subjek penelitian siswa kelas VIII SMPIT Rabbani Muara Enim sebanyak 5 orang. Data diperoleh dari tes dan wawancara. Hasil penelitian proses bernalar siswa menunjukkan bahwa proses penalaran yang terjadi pada seluruh siswa adalah menyajikan pernyataan matematika, dan mengajukan argumen. Dan untuk proses melakukan manipulasi, memberikan alasan dan bukti terhadap solusi, kemudian proses menarik kesimpulan tidak terjadi pada seluruh siswa. Kemudian proses bernalar yang tidak sama sekali terjadi pada siswa adalah memeriksa kesahihan argument. Pengerjaan siswa selesai pada perhitungan akhir tanpa memeriksa kembali proses yang dikerjakan.AbstrakPenelitian ini bertujuan untuk mendeskripsikan proses bernalar siswa menggunakan soal PISA konteks vaksinasi covid-19. Jenis dan pedekatan yang digunakan pada penelitian ini adalah deskriptif kualitatif, dengan subjek penelitian siswa kelas VIII SMPIT Rabbani Muara Enim sebanyak 5 orang. Data diperoleh dari tes dan wawancara. Hasil penelitian proses bernalar siswa menunjukkan bahwa proses penalaran yang terjadi pada seluruh siswa adalah menyajikan pernyataan matematika, dan mengajukan argumen. Dan untuk proses melakukan manipulasi, memberikan alasan dan bukti terhadap solusi, kemudian proses menarik kesimpulan tidak terjadi pada seluruh siswa. Kemudian proses bernalar yang tidak sama sekali terjadi pada siswa adalah memeriksa kesahihan argumen. Pengerjaan siswa selesai pada perhitungan akhir tanpa memeriksa kembali proses yang dikerjakan.
Implementasi Permainan Tradisional Patak Suku dalam Pembelajaran Matematika
Authors: Balqis Putri
Published: May 2023

Konsentrasi dan minat belajar siswa hanya di awal kegiatan pembelajaran. Hal tersebut disebabkan karena kurangnya penggunaan media pembelajaran di kelas, guru mengalami kesulitan dalam memilih media pembelajaran dan terbatasnya media pembelajaran di sekolah. Guru perlu menggunakan media pembelajaran yang menarik dalam menyampaikan pembelajaran, salah satu solusinya dengan menggunakan media permainan tradisional patak suku. Permasalahan yang diangkat adalah bagaimanakah implementasi permainan tradisional patak suku dapat menjadi media dalam upaya meningkatkan budaya dan kemampuan berpikir kritis siswa dalam pembelajaran matematika. Seiring dengan pembelajaran di era sekarang ini tidak lagi memandang siswa sebagai gelas kosong yang merupakan hanya sebatas target untuk memenuhi kewajiban pengajaran. Pembelajaran yang ditergetkan pada abad ke-21 adalah pembelajaran yang bisa merangsang siswa menjadi pembelajar yang aktif, kreatif, kritis serta menyenangkan sehingga tercipta pembelajaran bermakna. Berdasarkan solusi di atas, permainan patak suku dapat dijadikan alternatif media pembelajaran yang dapat diterapkan untuk meningkatkan budaya dan kemampuan berpikir kritis siswa dalam pembelajaran matematika untuk meningkatkan kualitas pendidikan.
Analisis Berpikir Kritis Siswa terhadap Pemecahan Masalah Matematika di MTs Surya Buana Malang
Authors: Amanda Nata , Nusantara Toto
Published: May 2023

Pemecahan masalah menjadi sentral dalam pembelajaran matematika Hal ini dapat dimaklumi karena penyelesaian masalah dekat kehidupan sehari-hari. Selain itu, penyelesaian masalah melibatkan proses berpikir secara optimal. Agar proses penyelesaian masalah dalam matematika dapat dikuasai dengan baik, salah satunya melalui penghargaan terhadap perbedaan masing-masing siswa. Dengan pengamatan yang mendalam pada diri siswa, akan disadari adanya berbagai jenis perbedaan berpikir. Dalam menyelesaikan masalah matematika  dibutuhkan kemampuan berpikir kritis untuk menentukan ide awal pengerjaan soal tersebut. Karena tidak semua soal matematika dapat langsung diselesaikan menggunakan rumus. Siswa yang mempunyai kemampuan berpikir kritis yang tinggi dalam menentukan ide awal pengerjaan soal-soal matematika akan lebih mudah untuk menyelesaikan soal-soal tersebut, sedangkan siswa dengan kemampuan berpikir kritis rendah akan merasa kesulitan dalam mengerjakan soal-soal tersebut Jadi, respons siswa dalam menyelesaikan masalah matematika dapat berbeda-beda. Artikel ini merupakan hasil diskusi tentang mendeskripsikan hasil analisis berpikir kritis siswa pada pemecahan masalah matematis di SMP Surya Buana Malang. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian kualitatif-deskriptif. Instrumen penelitian yang digunakan adalah lembar pemecahan masalah, dan pedoman wawancara. Subjek dalam penelitian ini adalah 3 siswa yang memiliki kemampuan berpikir kritis tinggi, sedang, dan rendah.
Hambatan Berpikir Kreatif pada Pemecahan Masalah Matematika
Authors: Himawan Harsayandaru , Nengah Parta I , Qohar Abd. , Nusantara Toto
Published: May 2023

Kemampuan berpikir kreatif sangat penting bagi siswa, karena berpikir kreatif sangat berguna di kehidupan sehari-hari. Artikel ini bertujuan untuk menganalisis kemampuan berpikir kreatif siswa SMP dalam menyelesaikan masalah melalui tes soal pemecahan masalah. Berdasarkan hasil tes tersebut diambil tiga siswa bernilai rendah (S1), sedang (S2), dan tinggi (S3). Hasil analisis yang didapatkan adalah ketiga siswa tersebut belum memiliki kemampuan berpikir kreatif yang baik. S1 hanya bisa mengidentifikasi permasalahan, S2 bisa menggunakan strategi yang unik dari siswa lain walaupun hasilnya masih salah, S3 mampu menjawab soal dengan dua cara, akan tetapi jawabannya masih salah. Sehingga dapat disimpulkan kemampuan berpikir kreatif siswa masih kurang.
Pengembangan Instrumen Integrated Assessment antara Keterampilan Proses Sains dan Penguasaan Konsep IPA untuk Mengukur Aspek Kognitif Proses
Authors: Santoso Agus , Kolonial Prodjosantoso Anti
Published: May 2023

Penelitian ini bertujuan untuk mendeskripsikan kelakayan instrumen, mengetahui hasil pengukuran aspek kognitif proses, dan mengetahui respon keterpakaian instrumen. Penelitian ini merupakan research development dengan menggunakan model pengembangan 4D. Prosedur penelitian ini meliputi (1) define, (2) design, (3) develop, dan (4)  disseminate. Subjek uji coba validasi instrumen integrated assessment dilakukan pada siswa di satu SMP dan uji keterpakaian produk pada siswa di tiga SMP di provinsi DIY. Teknik pengambilan data meliputi wawancara, angket, dan tes. Hasil penelitian ini berupa produk soal pilihan ganda untuk mengukur aspek kognitif proses yang layak secara teoritis ditinjau dari standar pembuatan tes sesuai hasil validasi ahli dan uji coba empiris. Hasil validasi ahli diperoleh validasi isi V Aiken sebesar 0,98 yang berarti instrumen tes dinyatakan sangat baik, sedangkan hasil uji coba empiris diperoleh 49 butir soal fit dan satu butir soal tidak fit, selanjutnya reliabilitas item tes adalah 0,73 dan reliabilitas sampel adalah 0,92. Hasil pengukuran di sekolah menunjukkan sekolah berkategori tinggi memiliki penguasaan aspek kognitif proses lebih baik daripada sekolah berkategori sedang dan kategori rendah. Hasil respon keterpakaian produk instrumen integrated assessment di sekolah dinyatakan dengan kriteria baik.
Upaya Meningkatkan Hasil Belajar Matematika pada Sistem Persamaan Linear Tiga Variabel (SPLTV) dan Pertidaksamaan Dua Variabel melalui Model Visualization Auditory and Kinesthetic (VAK)
Authors: Nurhasanah Aryanti , Soro Slamet , Dwi Siswanto Rizki
Published: May 2023

Penelitian ini bertujuan untuk meningkatkan hasil belajar matematika kelas X-MIPA 3 SMAN 94 Jakarta. Subjek penelitian berjumlah 36 peserta didik. Jenis penelitian ini menggunakan metode Penelitian tindakan kelas (PTK) dengan menggunakan 2 siklus, masing-masing siklus terdiri dari 4 langkah yaitu perencanaan, pelaksanaan, observasi, dan refleksi. Pra-siklus diambil dari nilai ulangan harian tentang persamaan dan pertidaksamaan nilai mutlak, dengan nilai rata-rata yang diperoleh yaitu 58,14. Hasil penelitian menunjukkan adanya peningkatan hasil belajar matematika peserta didik, terlihat dari rata-rata nilai 64 pada siklus I dan 79,94 pada siklus II serta peningkatan persentase peserta didik yang lulus kriteria ketuntasan minimal (KKM) 19,43 % pada pra-siklus, 38,89% pada siklus I, dan 75% pada siklus II.
Pengembangan Media Pembelajaran Matematika Berupa Alat Peraga Jam Sudut
Authors: Permatasari Krisela Tia , Apriyani Eka , Fitriyana Zahra Nur
Published: May 2023

Tujuan penelitian ini untuk mengetahui validitas, respon, dan hasil belajar peserta didik terhadap media pembelajaran matematika berupa alat peraga jam sudut. Teknik pengumpulan data melalui wawancara dan observasi awal dengan guru kelas IV. Pemberian angket penilaian media dilakukan kepada ahli media, ahli materi, dan guru kelas. Penelitian pengembangan ini dilakukan dengan model ADDIE (analysis, design, development, implementation, dan evaluation). Hasil penelitian menunjukkan bahwa media pembelajaran matematika berupa alat peraga jam sudut yang sudah divalidasi ahli media, ahli materi, dan guru dengan nilai kelayakan secara berturut-turut yaitu 77%, 85%, 87%, dan 85%. Berdasarkan hasil tersebut menunjukkan bahwa media pembelajaran matematika berupa alat peraga jam sudut layak digunakan peserta didik kelas IV SD dan dapat meningkatkan hasil belajar sebesar 79,1%.
Pengaruh Tingkat Kemandirian Belajar terhadap Prestasi Belajar Siswa pada Mata Pelajaran Matematika selama Pandemi COVID-19
Authors: Maghfirin Asif Mas Bahul , Kurniati Lenny , Kusumawati Ratih
Published: May 2023

Penelitian ini bertujuan untuk menentukan hubungan tingkat kemandirian belajar terhadap  prestasi belajar siswa pada mata pelajaran matematika selama pandemi COVID-19. Mengetahui tingkat kemandirian belajar dapat meningkatkan prestasi belajar siswa pada mata pelajaran matematika selama pandemi COVID-19. Menentukan pengaruh tingkat kemandirian belajar terhadap prestasi belajar siswa pada mata pelajaran matematika selama pandemi COVID-19. Menentukan faktor penyebab tingkat kemandirian belajar selama pandemi COVID-19. Penelitian kuantitatif ini dilakukan terhadap siswa kelas XI SMA Muhammadiyah Gubug. Pengambilan sampel menggunakan teknik simple random sampling. Teknik pengambilan data menggunakan instrumen angket yang mengukur tingkat kemandirian belajar siswa. Analisis data menggunakan analisis korelasi dan regresi. Pengumpulan data menggunakan metode wawancara dan angket. Kelayakan instrumen dianalisis menggunakan konversi skor skala 4. Hasil penelitian menunjukkan tingkat kemandirian belajar berhubungan terhadap prestasi belajar. Tingkat kemandirian belajar berpengaruh sedang terhadap prestasi belajar matematika selama pandemi COVID-19 sebesar 23%. Persentase faktor penyebab tingkat kemandirian belajar selama pandemi COVID-19 yaitu keturunan orang tua sebesat 22%, pola asuh orang tua sebesar 26%, sistem pendidikan sebesar 22%, dan sistem kehidupan sebesar 30%.