bluuebunny/crossref_metadata_2025 huggingface dataset:
Resource selection by New York City deer reveals the effective interface between wildlife, zoonotic hazards, and humans
Authors: VanAcker Meredith , DeNicola Vickie , DeNicola Anthony , Aucoin Sarah Grimké , Simon Richard , Toal Katrina , Diuk-Wasser Maria , Cagnacci Francesca
Published: October 2022

Although the role of host movement in shaping infectious disease
dynamics is widely acknowledged, methodological separation between
animal movement and disease ecology has prevented researchers from
leveraging empirical insights from movement data to advance
landscape-scale understanding of infectious disease risk. To address
this knowledge gap, we examine how movement behavior and resource
utilization by white-tailed deer (Odocoileus virginianus)
determine the distribution of blacklegged ticks (Ixodes
scapularis) which depend on this host for dispersal in a highly
fragmented New York City borough. Multi-scale hierarchical resource
selection analysis and movement modeling provide insight into how deer’s
individual movements construct the risk landscape for human exposure to
the Lyme disease zoonotic hazard – infected I. scapularis. We
conclude the distribution of tick-borne disease risk is the result of
individual resource selection by deer across spatial scales in response
to habitat fragmentation and anthropogenic disturbances.
Highly biocompatible rGO-TiO2 nanomaterials effectively enhance the phycocyanin yield of Arthrospira platensis FACHB-314 under visible light conditions
Authors: XIONG PAN , Xu Siming
Published: October 2022

Human health is burdened by diverse range diseases, particularly chronic
diseases. Free radicals and other oxidants are implicated in development
of those diseases as free radicals induced oxidative stress. The
antioxidants are salient substances that involve maintaining a normal
long life by scavenging the free radicals in the body. Phycocyanin is
free radicals’ scavenger with ability to find and tackle the side
effects of free radicals; the phycocyanin also possesses other
physiological and pharmaceutical properties. This research aimed at
evaluating the effectiveness of TiO2 nanoparticles, and reduced graphene
oxide titanium dioxide nanoparticles (herein after referred to rGO-TiO2
nanoparticles) under visible light conditions to boost the accumulation
of phycocyanin in Arthrospira (Spirulina) platensis (FACHB-314) cells.
The experimental results indicated that the both nanoparticles exhibited
high phycocyanin content accumulation compared to the control group.
Under optimized visible light conditions of 165 μmol/m2/s wavelength and
continuous lighting with white lights, the phycocyanin content of 80.3
mg/g and maximum yield of phycocyanin production were 97.16 mg/L in the
rGO-TiO2 nanoparticles culture; 55.7 mg/g and 81.88 mg/L in the TiO2
nanoparticles culture, compared to 75.5 mg/g and 81.86 in the control
culture. The maximum dry weight biomass cells were observed under the
control group compared the experimental conditions. These research
results indicate that rGO-TiO2 nanoparticles have potential commercial
applications due to the excellent properties, and can be used in A.
platensis and other microalgae cultivation to optimize productivity.
Novel green synthesis of tin nanoparticles by medicinal plant: Chemical characterization and determination of cytotoxicity, anti-human lung cancer and antioxidant properties
Authors: Zou Xiao
Published: October 2022

In the present study, tin nanoparticles were green-synthesized using the
aqueous extract of Foeniculum vulgare leaf aqueous extract. The
synthesized SnNPs were characterized by analytical techniques including
EDX, FE-SEM, XRD, UV-Vis., and FT-IR. The anti-human gastric cancer
activity of SnNPs was evaluated using MTT assay. The nanoparticles were
formed in a spherical shape in the range size of 26.45 to 38.53 nm. In
the antioxidant test, the IC50 of F. vulgare, SnNPs@FV, and BHT against
DPPH free radicals were 384, 119, and 71 µg/mL, respectively. In the
cellular and molecular part of the recent study, the treated cells with
SnNPs@FV were assessed by MTT assay for 48h about the cytotoxicity and
anti-human lung cancer properties on normal (HUVEC) and lung cancer cell
lines i.e., NCI-H2126, NCI-H1299, and NCI-H1437. The IC50 of SnNPs@FV
were 108, 168, and 122 µg/mL against NCI-H2126, NCI-H1299, and NCI-H1437
cell lines, respectively. The viability of malignant lung cell line
reduced dose-dependently in the presence of SnNPs@FV.
Genetic and gender factor affect lipid profiles of patients receiving statin treatment in the east coast region of Peninsular Malaysia
Authors: Shamsudin Amirul Faez , Bakar Nur Salwani
Published: October 2022

Aim: This study was conducted to evaluate the impact of genetic
polymorphisms on lipid profiles of statin users. Methods: This
retrospective cross-sectional study involved 229 hyperlipidaemic statin
users in east coast region of Peninsular Malaysia. DNA was extracted
from patients’ blood (3mL) and SNP genotyping was performed using
PCR-RFLP. Lipid profiles were evaluated before and after statin
administration. Multi-factorial impact on the attainment of LDL goal of
<2.6mmol/L was assessed by multivariate binary regression.
Results: The participants were mostly females (53.3%), Malays (96.1%)
and treated with atorvastatin (64.2%). Minor allele frequency (MAF) of
the studied SNPs as follow; ABCG2 rs2231142 = 0.12, ABCC2 rs717620=
0.58, APOE rs429358 and rs7412 = 0.35, GATM rs9806699 = 0.63, COQ2
rs4693075= 0.96, and APOA5 rs662799= 0.45. Before statin treatment,
ABCG2 rs2231142 (P=0.035) and APOA5 rs662799 (P=0.007) carriers had
greater HDL-c levels while ABCC2 rs717620 carriers had higher TC
(P=0.040) and LDL-c values (P=0.022). After statin treatment, the
following SNPs have affected the lipid profiles; ABCC2 rs717620 (lower
TG, P=0.009), APOA5 rs662799 (higher HDL, P=0.031; lower TG, P=0.037)
and ABCG2 rs2231142 (higher TC, P=0.038). Furthermore, males were
affected lipid profiles significantly than females in APOA5 rs662799
(lower TG, P= 0.038; higher HDL, P= 0.006). Of all independent variables
tested, only pravastatin users were predicted patient’s achieving
LDL-target of <2.6 mmol/L (P=0.040, OR=0.110, 95%
CI=0.013-0.902). Conclusion: ABCC2 rs717620, APOA5 rs662799 and ABCG2
rs2231142, as well patient gender, determined different lipid profiles
either with or without statin treatment in a subset of Malaysian
population.
Value of Frontal QRS Axis for Risk Stratification of Individuals with Prolonged PR Interval
Authors: Ju Weizhu , Cao Xiaodi , Wang Zhe , Fang Zhang , Yu Chuanchuan , Chen Minglong
Published: October 2022

Introduction There is ongoing controversy regarding the
prognostic value of PR prolongation among individuals free of
cardiovascular diseases. It is necessary to risk-stratify this
population according to other electrocardiographic parameters.
Methods and Results This study based on the Third National
Health and Nutrition Examination Survey. A total of 6188 participants
(58.1±13.1 years; 55% women) were included. The median frontal QRS axis
of the entire study population was 37° (IQR: 11–60°). PR prolongation
was present in 7.6% of the participants, of whom 61.2% had QRS axis
≤37°. In a multivariable-adjusted model, mortality risk was highest in
the group with concomitant prolonged PR interval and QRS axis ≤37° (HR:
1.20, 95% CI: 1.04-1.39). In models with similar adjustment where
population were reclassified depending on PR prolongation and QRS axis,
prolonged PR interval and QRS axis ≤37° was still associated with
increased risk of mortality (HR: 1.18, 95% CI: 1.03-1.36) compared with
normal PR interval. Conclusion QRS axis is an important factor
for risk stratification in population with PR prolongation. The extent
to which this population with PR prolongation and QRS axis ≤37° is at
higher risk of death compared with the population without PR
prolongation.
Effect of esketamine on opioid consumption and postoperative pain in thyroidectomy: a randomized controlled trial
Authors: Wang Penglei , Song Meixian , Wang Xiaoli , Zhang Ye , Wu Yun
Published: October 2022

Aim: Thyroidectomy is frequently associated with substantial
postoperative pain. Esketamine, an N-methyl-D-aspartate receptor
antagonist, has been demonstrated to be effective in multiple analgesia.
We hypothesized that intraoperative administration of esketamine may
reduce perioperative opioid consumption and postoperative pain in
patients undergoing thyroidectomy. Methods: Sixty patients undergoing
thyroidectomy were randomly assigned to two groups. Patients in the
saline group received a pre-incisional intravenous bolus of 0.9% NaCl
followed by an intraoperative infusion of 0.9% NaCl; patients in the
esketamine group received a pre-incisional intravenous bolus of
esketamine (0.5 mg kg-1) followed by an intraoperative infusion of
esketamine (0.24 mg kg-1 h-1). The primary outcome was perioperative
sufentanil consumption. The postoperative pain, sleep quality, and
adverse events during the first postoperative 24 h were also evaluated.
Results: Patients in the esketamine group consumed significantly less
sufentanil than those in the saline group (24.6 ± 3.1 μg vs. 33.7 ± 5.1
μg, mean difference, 9.1; 95% confidence interval, 6.9–11.3, P
<0.001). Postoperative pain scores were significantly lower in
the esketamine group than those in the saline group during the first 24
h postoperatively (P <0.05). Patients receiving esketamine
experienced higher sleep quality than those in the saline group during
surgical night (P = 0.043). There were no significant differences in
adverse events between the two groups. Conclusion: Intraoperative
administration of esketamine reduces perioperative sufentanil
consumption and postoperative pain without increasing adverse events in
patients undergoing thyroidectomy. The development of combined
anesthesia regimens, including esketamine, may foster strategies for
pain management during thyroidectomy.
Difficult-to-treat Diabetes Insipidus in a Patient with Midline Defect: A Case Report
Authors: Seifi Atena , Zahmatkesh Arefeh , Jamee Mahnaz , Mirzaee Mahbubeh , mohkam Masoumeh
Published: October 2022

Holoprosencephaly (HPE) is a complex brain malformation resulting from
incomplete cleavage of the prosencephalon, occurring between the 18th
and 28th day of gestation. Endocrinologic dysfunctions such as diabetes
insipidus (DI), hypothyroidism, and growth hormone deficiency are common
in HPE and correlated with the degree of hypothalamic non-separation.
Pushed to the edge: Spatial sorting can slow down invasions
Authors: Shaw Allison , Lutscher Frithjof , Popovic Lea
Published: October 2022

Our ability to understand population spread dynamics is complicated by
rapid evolution, which renders simple ecological models insufficient. If
dispersal ability evolves, more highly-dispersive individuals may arrive
at the population edge than less-dispersive individuals (spatial
sorting), accelerating spread. If individuals at the low-density
population edge benefit (escape competition), high dispersers have a
selective advantage (spatial selection). These two processes are often
described as forming a positive feedback loop; they reinforce each
other, leading to faster spread. Although spatial sorting is close to
universal, this form of spatial selection is not: low densities can be
detrimental for organisms with Allee effects. Here, we present two
conceptual models to explore the feedback loops that form between
spatial sorting and spatial selection. We show that the presence of an
Allee effect can reverse the positive feedback loop between spatial
sorting and spatial selection, creating a negative feedback loop that
slows population spread.
Ultrasonic enhancement of lipase-catalyzed reactions: Mechanistic investigation using molecular docking analysis
Authors: Kumar Karan , Patro Pallavi , Raut Unnati , Yadav Varsha , Barbora Lepakshi , Moholkar Vijayanand S.
Published: October 2022

Ultrasound has emerged as an efficient green technology for
intensification of lipase-catalyzed processes. These processes are of
high significance in the context of renewable fuels synthesis. In this
paper, we have attempted to reveal the molecular mechanism of
sonication-induced enhancement of lipase-catalysed reactions. Using
hybrid quantum mechanics/ molecular mechanics computations, we have
initially determined the structure and amino acid composition of the
binding pockets of two common lipase enzyme, viz. CALB and
TLL. Next, these binding pockets were visualized using softwares
PyMOL and VMD to deduce their location in different motifs of the
secondary structure of lipases. Finally, the docking analysis of
different ligands was performed to reveal the amino acid residues
involved for each ligand and the nature of their interactions. Our
results revealed that most of the binding pockets are located in the
α-helix and random coil motifs of enzyme and binding interactions are of
the type hydrogen bond and hydrophobic interactions. Previous literature
reports significant rise in α-helix and random coil contents of lipases
with sonication. This observation concurs with our analysis, and
suggests rise in enzyme activity with sonication due to widening of
catalytic cavity and easier accessibility to binding pockets. Thus, our
analysis provides molecular-level insight into the sonication-induced
enhancement in kinetics and yield of lipase-catalyzed reactions.
An exceedingly rare cause of neonatal shock: persistent fifth aortic arch with critical coarctation
Authors: Yang Yun , Zhang Xin , Fang Lingyun , Yang Yali
Published: October 2022

We present a case of a 13-day-old neonate with shock who was diagnosed
with persistent fifth aortic with critical coarctation by cardiac
point-of-care ultrasound and surgery confirmed the anomalies. This case
demonstrates the value of cardiac point-of-care ultrasound in detecting
congenital anomalies of great vessels in neonates and may be beneficial
in clinical management.
Nodular Melanoma in an African American Japanese Male Sarah Gonzalez BS1, Andrew King MD, PhD1, Meena Moossavi MD, MPH1 1 Wayne State University School of Medicine Written informed consent was obtained from the patient to publish this report in accordance with the journal’s patient consent policy.
Authors: Gonzalez Sarah , King Andrew , Moossavi Meena
Published: October 2022

Nodular melanoma (NM) is the third most common subtype of melanoma among
African Americans (AA) behind acral lentiginous melanoma (ALM) and
superficial spreading melanoma (SSM) (1, 2). This case of NM in an
African American Japanese male was selected due the rare occurrence of
NM in skin of color patients.
Recurrence Analysis of Time Series of Partial Discharge in Optical-UHF Combined Sensing
Authors: Chen Yue , Zhou Mingyu , Fan Lu , Rui Yifan , Wang Yalin , Yin Yi
Published: October 2022

Partial discharge (PD) is a dynamical system with nonlinear chaotic
characteristics. Research on the time series of PD is helpful to extract
the discharge mechanism. This paper takes a PD optical-UHF detection
platform to detect the PD signals of typical defects. The optical and
UHF signal are fused to avoid the insensitivity of single method in
specific defects. The phases of PDs are taken as one-dimensional time
series. The PD phase series are reconstructed in phase space and the
attractors and the recurrence plots are presented. The attractors in
phase space characteristic the PD system from predictability, stability,
and complexity. The typical recurrence characteristics such as
recurrence rate, determinism, laminarity, and entropy are extracted as
evaluation parameters. Results show that the PD phase attractors are
more random under low voltage and tends to be more ordered, stable, and
complex when the applied voltage increases. The order of predictability,
stability, and complexity of the four defect types from high to low is:
point discharge, surface discharge, suspended discharge, air-gap
discharge. The recognition accuracy based on recurrence characteristics
achieves 100% with the most basic BPNNs.
Research on transformer fault diagnosis based on ISOMAP and IChOA-LSSVM
Authors: Lu Wanjie , shi chun , fu hua , xu yaosong
Published: October 2022

Oil-immersed transformers play an important role in the stable operation
of power systems. In order to improve the accuracy of transformer fault
diagnosis, a transformer fault diagnosis method based on Isomap and
IChOA-LSSVM is proposed. Firstly, Isomap is used to reduce the
dimensionality of the 14-dimensional transformer fault characteristics
data to eliminate redundant data between variables; then the Chimpanzee
Optimisation Algorithm (ChOA) is improved by combining Circle uniform
initialisation, position weighting strategy with proportional weights,
and the Cauchy Gaussian variation factor. Circle uniform initialisation
to make the population distribution uniform, position weighting strategy
with proportional weights to improve the convergence speed and Cauchy
Gaussian variation factor to optimize the population selection. The
improved ChOA is compared with the original ChOA, PSO, and GWO
algorithms by five benchmark test functions. Finally, the improved
Chimpanzee Optimisation algorithm was used to find the parameters of the
Least Squares Support Vector Machine (LSSVM) to obtain the fault
diagnosis model combining Isomap and IChOA-LSSVM. The model is compared
with PSO-LSSVM, ChOA-LSSVM, and GWO-LSSVM. The diagnostic accuracy is
90.83%, 81.67%, 83.33%, and 80%, respectively. The results
demonstrate that the proposed method can effectively improve the
performance of transformer fault diagnosis.
An Integrated Framework of Machine Learning and Evolutionary Computation for Prediction of Stock Exchange Based on Covid-19 News
Authors: Khan Hikmat Ullah , Khan Danish , Saeed Ammar , Imran Talha , Iqbal Tassawar , Khan Jawad Abbas
Published: October 2022

Due to its importance in the individual and national economies, stock
market prediction is an important study subject. A stock market’s
success is based on the rise or fall of industrial, financial, medical,
local, and global stock prices in a certain region and globally.
Electronic news and public opinion impact stock markets. Since the
Covid-19 epidemic, global stock prices have fluctuated because to
economic uncertainty. Social media has been used to spread pandemic
news, comments, and forecasts. Such news has affected global stock
marketplaces, which are prone to polarity, by affecting investors’
decision-making and changing the perspective of stock-interested people.
This paper proposes a methodology to examine the influence of Covid-19
internet news data on stock market performance. News data comes from
news.pk and internet news sites, while stock data is from Yahoo Finance.
Text characteristics are retrieved from news information using TF-IDF,
and stock-related features are produced for stock value prediction. A
hybrid approach that combines evolutionary algorithms such as Genetic
Algorithm, Harris hawks Optimization, and Particle Swarm Optimization
with various Machine Learning and Deep Learning-based models. The
empirical analysis-based results reveal the proposed hybrid model
outperforms traditional ML models using standard performance evaluation
measures.
Analysis and Validation of Multi-Device Interleaved DC-DC Boost Converter for Electric Vehicle Applications
Authors: Devarajan Gunapriya , Alzahrani Ahmad , Subramani Sivaranjani , Indragandhi Vairavasundaram , Alaric J.Sam
Published: October 2022

In Electric Vehicle (EV) application, the voltage conversion is
significant to obtain the desired operating voltage from the source
voltage. A conventional boost converter can handle such applications,
but it may add losses throughout the conversion process. This work
focuses on the design and implementation of a multi device Interleaved
DC-DC converter with greater voltage gain, lower voltage stress across
the switch, and improved efficiency when compared to the standard Boost
converter and conventional Interleaved Converter. The suggested
converter has three times the voltage gain of a standard Boost DC-DC
converter. These converters are used in applications that demand a
constant DC voltage, such as electric vehicles. The proposed converter’s
mathematical modelling and modes of operation are discussed. The
proposed DC-DC converter’s feasibility is validated using real-time
simulation (OPAL-RT), and the results are presented in detail.
Academic Student Paper: Why Alprazolam (Xanax) is an essential and indispensable life-saving drug for patients suffering from rare diseases
Authors: Everett Sandra , Steinberg Jonas , Diamandis Dr. Carolina , Levi Patrick , Anderson Carolina , Gangnon Class of Prof. Dr. Martin
Published: October 2022

Since the market launch of alprazolam (in many countries under the brand
name Xanax), this highly potent benzodiazepine has had a disastrous
public reputation. Even in media, entertainment and pop culture, its
very powerful effects have made it emblematic of a sinister psychodrug
that drags its users into an abyss of dependence and suffering. Indeed,
the substance has certain specific properties (mood elevating, extremely
fast acting, very short half-life, effects on adrenaline), but at its
core it is a benzodiazepine like any other. How Xanax came to be
demonized is therefore an important question to be discussed. On the
other hand, the substance alprazolam possesses a unique property that is
hardly known even among experts to this day and can be life-saving for
people whose body’s own adrenaline synthesis and regulation is disturbed
by certain (often hereditary, auto-immune, or toxic) rare diseases. For
these patients, there is virtually no other medication available than
alprazolam, which quickly, specifically and highly effectively inhibits
pathological adrenaline surges, for example due to disorders of the SAM
axis, effectively at the site of adrenaline (epinephrine) synthesis by
up to 50%. Logically, this also gives rise to the legendary reputation
that alprazolam is more effective than any other benzodiazepine,
especially in patients with panic disorders. This paper, a
source-supported opinion piece, is intended to remind the worldwide
community of medical professionals that alprazolam is a legitimate, and
often the only available, treatment option for abnormal adrenaline
balance involving the adrenal gland and/or the SAM axis. Demonizing
alprazolam in a clinically well regulated setting is therefore immoral
and detrimental to the patients health and compliance.
Ethiopian energy consumption forecast
Authors: Degefa Mehari Weldemariam
Published: October 2022

This Energy consumption forecast is vital and has a great economic impact. Mathematical models developed for energy forecast can also serve as inputs for further studies. This study is intended to develop an energy consumption forecast using the grey prediction model GM (1,1), based on the actual energy consumption data from the year 2008 to 2017. The models are developed for the total, solid biomass, oil products, and electrical energy consumption; and the accuracy for each model is ratified. These developed forecasting models were used to anticipate six-year Ethiopian consumption of major energy types. The outcomes of models for all four energy consumption types show an upward trend; simulating and forecasting are found suited with the grey system model with development coefficient values less than 0.3 for all selected energy forms.
Determination of abrasive strength of fabrics through mass loss at various washing intervals
Authors: Ijaz Mehreen , Sahar Namood e , Rasheed Zahra
Published: October 2022

Fabrics undergo many wear and tear conditions through their lifetime. Abrasion occurs with the rubbing of fibers to another surface during their manufacturing process, usage, and laundering procedure. It is necessary to evaluate upholstery fabrics for their abrasive strength before presenting it to the customers for their satisfaction. Abrasion causes mechanical deterioration of fibers and yarns in a fabric. This study was aimed at determining the abrasive strength of collected upholstery fabric from local markets after various number of washing intervals through Martindale abrasion tester. The results depicted that fabric made with polyester and cotton having a blend ration of (87% and 13%) manufactured by following plain interlacing pattern was better able to resist rubbing action as compared to other samples.
The Implications of Breastfeeding Self-Efficacy on Prelacteal Feeding in First Week of Birth
Authors: Mertasari Luh , Sugandini Wayan , Giri Ketut Espana
Published: October 2022

Breastfeeding is a special and joyful event that most mothers and their babies experience. Exclusive breastfeeding (breastfeeding only for babies until they are six months old) is an activity that is very beneficial for both mother and baby. The low achievement of exclusive breastfeeding often begins with giving prelacteal intake in the first days of the baby's life because of the low understanding of the baby's mother about the importance of breastfeeding. This study links the relationship between breastfeeding self-efficacy and prelacteal feeding in the first week of birth. This type of research is correlational with a cross-sectional approach. The population in this study were breastfeeding mothers in the first week of the baby's birth; the number of samples was 50 people with purposive sampling technique. The data was collected using the BSE-SF questionnaire and observation—data analysis with univariate and bivariate chi-square tests to determine the relationship between the two variables. The study results with a p-value of 0.000 0.05, so it was concluded that there was a relationship between breastfeeding self-efficacy and the provision of prelacteal nutrition in the first week of birth. This research can then be used to reference further breastfeeding guidance strategies.
The Effect of Fish Thickness on Dryness Level and Time for Drying Fish
Authors: Azizah Nur , Asfiyanti Nurul Aini , Hasibuan Melisa , Jannah Miftahul , Gustari Rinda , Hasibuan Riski Sakinah
Published: October 2022

Drying fish is one way of preserving fish by reducing the water content so that the activity of microorganisms can be reduced. Preservation by drying is intended to extend the shelf life of fish. The method used in this research is using the experimental method. The data used in this study include data regarding the process, what materials will be carried out in this research. In this study, there were several problems in the drying time of fish. The data collection technique was the implementation of experiments and documentation. The conclusion of this research is sunlight, fish thickness, and drying time affect the drying rate of fish. Fish that get enough sunlight and have a small and thin shape will dry faster than fish with thick meat, such as catfish and catfish. Fish dried without salt and get enough sunlight will usually dry faster than fish given salt. Except for fish that have thick and oily meat usually dry longer. The drying time of fish varies depending on the thickness of the fish and the sunlight it gets.
Mobile Learning Media for Computer and Based Network at Vocational High School
Authors: Mayefis Reska
Published: October 2022

Currently, there are still many students who like digital-based learning activities. This study aims to analyze the need for developing Android-based mobile learning media in SMK. The type of research used is survey research and literature study. The methods used in collecting data are observation, interviews, and questionnaires. The instruments used are interview sheets and questionnaires. The data analysis technique used is descriptive statistics. The study results showed that around eighty-two percent of students actively use smartphones outside learning hours. Students who use smartphones in learning are more informal, using them more to find information. On the other hand, only twenty-five students use smartphones to access course materials. Students agree to use their smartphones to study in class because it can increase their interest in learning and their ability to understand the subject matter better. Learning media can be a source of learning for students and help teachers in teaching, and learning activities can be more effective.
Mathematics Critical Thinking Skills for The Third Grade Elementary School Students on Fractions Material
Authors: Fitriani Fildzah , Kowiyah
Published: October 2022

In learning mathematics, critical thinking is needed to solve problems in various ways including interpreting, analyzing and evaluating. This study aims to analyze the critical thinking of third grade elementary school students in solving problems on the subject of fractions. The research was conducted at Elementary school by involving 26 students as the subject. This research used qualitative method. The data collection techniques used description tests and interviews. The description tests were reviewed based on four critical thinking indicators, namely interpreting, analyzing, evaluating and inference. This qualitative data processing technique is reducing data, presenting data, and drawing conclusions. The validity of the data was carried out using a triangulation technique, namely the results of student description tests, and interviews were triangulated to obtain a description of students' critical thinking skills in solving math problems with fractions. The results showed that students with high critical thinking met the four indicators, students who had moderate critical thinking only met two indicators, and students who had low critical thinking did not meet the four indicators. In conclusion, students' critical thinking skills were low. They could not understand the problem well and had not solved it properly. Meanwhile, students who think highly critically are able to understand questions about fractions, to analyze, to choose the right method, and to conclude clearly and logically.
Media Buku Pintar Meningkatkan Hasil Belajar Keterampilan Dasar Siswa Kelas I Sekolah Dasar
Authors: Mariantini Luh , Wibawa I Made Citra , Suarjana I Made
Published: October 2022

Banyak siswa yang kesulitan dalam meningkatkan keterampilan dasar. Tujuan penelitian ini yaitu mengembangkan Media Smart Book dalam Meningkatkan Hasil Belajar Keterampilan Dasar Siswa Kelas I SD.  Jenis penelitian ini yaitu pengembangan dengan model ADDIE. Subjek uji coba yaitu 2 ahli media dan 2 ahli materi. Subjek uji coba yaitu 1 praktisi dan siswa kelas I SD yang berjumlah 28 siswa. Metode yang digunakan yaitu dengan teknik wawancara dan observasi. Instrumen pengumpulan data yang digunakan yaitu kuesioner. Teknik analisis data yaitu analisis kualitatif dan kuantitatif serta statistic inferensial. Hasil penelitian yaitu hasil penilaian oleh ahli isi media yaitu0,93 (validitas tinggi), dan ahli media mendapatkan nilai 0,87 (validitas tinggi). Skor validasi dari masing-masing responden yaitu 4,45 (sangat baik), dan 4,89 (sangat baik) hasil dari respons siswa.  Dari hasil analisis disimpulkan bahwa media Smart Book layak atau valid digunakan dalam proses pembelajaran. Hasil uji-t yaitu terdapat perbedaan antara nilai pretest dan post test siswa kelas 1 sebelum dan sesudah menggunakan media Smart Book. Disimpulkan bahwa Media Smart Book dapat meningkatkan keterampilan dasar pada siswa kelas I SD. Implikasi penelitian ini smart book dapat digunakan.
Peran Orang Tua Dalam Meningkatkan Motivasi Belajar Siswa Di Masa Pandemi Covid-19
Authors: Nengsih Marliza Septia , Dafit Febrina
Published: October 2022

Pada masa pandemi covid-19 peran orang tua diperlukan dalam proses pembelajaran jarak jauh. Orang tua dapat memberikan motivasi, perhatian dan juga dukungan untuk anak saat aktivitas belajar. Penelitian ini bertujuan untuk menganalisis peran orangtua dalam belajar siswa dan menganalisis apa saja faktor penghambat peran orangtua dalam belajar siswa. jenis penelitian ini yaitu kualitatif. Jenis penelitian ini yaitu penelitian deskriptif kualitatif. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kualitatif. Metode yang digunakan untuk mengumpulkan data yaitu wawancara, observasi dan dokumentasi. Instrument pengumpulan data penelitian ini adalah pedoman wawancara. Teknik yang digunakan dalam menganalis data yaitu analisis deskriptif kualitatif. Hasil penelitian menunjukkan bahwa peran orang tua dalam memotivasi belajar tampak dari peran sebagai pembimbing, fasilitator dan motivator. Orangtua sebagai fasilitator dengan menyediakan sarana alat belajar seperti tempat belajar, buku-buku pelajaran dan alat-alat tulis dan memberikan fasilitas untuk mengembangkan bakat dan minat anak. Orangtua sebagai motivator dengan memberikan motivasi kepada anak dengan cara memberi penghargaan terhadap prestasi belajar anak dengan memberi hadiah maupun kata-kata pujian. Orangtua sebagai pembimbing dengan terlibat dalam kegiatan belajar dengan mendiskusikan dengan pihak homeschooling mengenai program belajar yang sesuai dengan kondisi anak.
E-Scrapbook: The Needs of HOTS Oriented Digital Learning Media in Elementary Schools
Authors: Antara I Gede Wahyu Suwela , Dewantara Kadek Andre Karisma
Published: October 2022

The adaptation of new habits after the COVID-19 pandemic has an impact on the lack of availability of learning media that can be used to support the learning process. The role of learning media is very important in the learning process, one of which is to facilitate students in practicing higher-order thinking skills as one of the 21st century skills that must be possessed by students. This study aims to analyze the needs and explore the role of teachers in the process of developing digital learning media containing HOTS-based questions in elementary schools. This research is a descriptive research by conducting a needs analysis. The data was collected using observation and interview methods with instruments in the form of observation sheets and interview sheets. Data analysis was carried out qualitatively. The results show that digital-based learning media containing HOTS questions used in post-covid-19 learning are still limited and not varied. In addition, teachers also have not played a major role in developing digital-based learning media containing HOTS questions. This indicates that the development of digital-based learning media containing HOTS questions needs to be developed as an effort to improve the quality of learning after the COVID-19 pandemic.
Pengaruh Penggunaan Aplikasi Wayang Sukuraga Terhadap Keterapilan Menulis Narasi Siswa Kelas Rendah
Authors: Nurhidayah Shopa’a Aulia , Dyah Lyesnaya  , Iis Nurasiah
Published: October 2022

Menulis merupakan salah satu aspek penting dalam pembelajaran Bahasa Indonesia, hal ini disebabkan karena melalui kegiatan menulis seseorang akan dapat berkomunikasi dengan orang lainnya dalam bentuk Bahasa tulis. Hanya saja kenyataan dilapangan menunjukkan bahwa tidak semua siswa mampu menulis dengan baik, kususnya dalam aspek menulis teks narasi. Adapun tujuan dari penelitian ini adalah untuk mengetahui pengaruh penggunaan aplikasi wayang sukuraga terhadap keterampilan menulis siswa sekolah dasar kususnya pada siswa kelas rendah. Penelitian ini tergolong kedalam penelitian eksperimen dengan desain penelitian berupa quasi ekperimental desain. Subjek yang terlibat dalam penelitian ini yakni 30 orang siswa kelas II SD, dengan 15 siswa sebagai kelompok eksperimen, dan 15 orang lainnya sebagai kelompok kontrol. Pengumpulan data dalam penelitian dilakukan menggunakan metode tes, dengan instrument penelitian berupa tes kemampuan menulis narasi siswa sekolah dasar. Data yang diperoleh dalam penelitian kemudian dianalisis dengan menggunakan analisis kuantitatif. Untuk menguji hipotesis dan data hasil uji formatif (pre-test dan post-test) dari kelompok kontrol maupun kelompok eksperimen akan dianalisis dengan uji statistik parametrik yakni uji t (independent sample T- test). Hasil analisis penelitian menunjukkan bahwa nilai rata-rata hasil pada post tes pada kelas ekperimen sebesar 83.9333, dan untuk kelas kontrol memiliki nilai rata-rata 75.1333, sehingga H0 ditolak dan H1 diterima. Berdasarkan hasil penelitian yang diperoleh maka dapat ditarik kesimpulan bahwa terdapat pengaruh dalam keterampilan menulis narasi siswa kelas rendah setelah diberikan media digital wayang sukuraga.
Presenting Materials About Static Electricity with Video Based Demonstration: A Feasibility of Learning Media
Authors: Nyoman Adi Sudhira  , I Made Citra Wibawa  , I Made Suarjana
Published: October 2022

This study is motivated by the finding that there is a lack of learning media in the learning process. This study aims to develop a valid and practical demonstration-based learning video media on static electricity in the fourth grade of elementary school. This study applies 4D modeling, namely (1) define or define; (2) design or design; (3) develop or development; and (4) disseminate or spread. This study involved two material experts, two media experts, two practitioners, and five students. This study uses qualitative and quantitative descriptive analysis methods. Data collection methods used are questionnaires or questionnaires and interviews. The average result of the validity of demonstration-based learning videos from material experts is 96.5% very good category, 96% of media experts in the very good category, 97.5% of practitioners in are very good category, and 96.8% of student responses are very good category. These results align with the study's aim to obtain learning media that pass the validity test. It was concluded that demonstration-based learning video media on static electricity were valid and suitable for use in learning activities in fourth-grade elementary school.
Quizizz-Assisted Interactive Powerpoint Media on Human Respiratory Organ Material
Authors: Ni Putu Dita Sri Cahyani  , Ni Nyoman Ganing
Published: October 2022

Student limitations related to cellphone devices make it difficult for students to follow the online learning process. The variety of learning media makes some students less interested in learning, and students lack understanding of the material being taught. This research is development research. This study aims to determine the design and test the validity of interactive Powerpoint media. This study used the ADDIE development model type. The types of data collected in this study are quantitative data and qualitative data. The subjects in this study included three experts and three students in individual trials, and nine students in small group trials. The data collection method uses the questionnaire method. The results of this study include (1) the design of this interactive Powerpoint media following the ADDIE model used with five stages of development. (2) Interactive Powerpoint media is declared feasible based on: (a) the results of expert reviews of learning content with excellent qualifications (90%), (b) the results of learning design reviews with excellent qualifications (90%), (c) the results of reviews of learning media with qualifications (90%), (d) the results of individual trials with excellent qualifications (96.66%), (e) the results of small group trials with excellent qualifications (95%). Based on the trial results, it can be concluded that this Quizizz-assisted interactive Powerpoint media is suitable for use in the science learning process of grade V elementary school.
Improving Language Skills of 5-6 Years Old Children with Storytelling Method and Picture Word Card Media
Authors: Cahyati Ulya , Karta I Wayan , Astawa I Made Suwasa , Fahruddin
Published: October 2022

Language is a very important thing. Through language, children can express their thoughts and knowledge when interacting with other people. This study aims to analyze the effect of partially and simultaneously the application of the storytelling method and picture word card media on the language skills of children aged 5-6 years. Applying the experimental method of one group pretest-posttest design. Applying the purposive sampling method, 15 children in group B were found as data sources. Data were collected using structured observation techniques, document analysis, and applying multiple regression analysis to test hypotheses. The results of the study found that there was a partial and simultaneous positive effect on the application of the storytelling method and picture word card media on the language skills of children aged 5-6 years. So it can be concluded that there is a positive effect of applying the storytelling method and picture word card media on the language skills of children aged 5-6 years. The implication of this research is that PAUD educators can apply storytelling methods and picture word cards in learning to improve the language skills of children aged 5-6 years.
Melali Ke Subak Abiansemal Storybook: Instilling the Gotong Royong Value in Grade V Elementary School Students
Authors: Dewi Patricia Komang Ayu Asmara , Lasmawan I Wayan , Margunayasa I Gede
Published: October 2022

Nowadays there is a decrease in the value of mutual cooperation that occurs in children, mutual cooperation character education needs to be improved since the elementary school level. This study aims to develop a picture story book with local Balinese wisdom to instill the value of the character of gotong royong in fifth grade elementary school students. This type of research is development research using Analysis, Design, Development, Implementation and Evaluation methods. Data collection methods using a questionnaire. The data analysis technique used quantitative and qualitative analysis. The product test subjects consisted of 2 people who were material experts, design experts, and media experts. Practitioner test of 2 teachers and 40 fifth grade elementary school students in the cluster. The results showed that the validation test reached 95.55%, at intervals of 81%-100% (very valid). The practicality test reached 98.06% at an interval of 81%-100% (very practical). The effectiveness test in the group without treatment with an average score of 66,425, while the group with treatment has an average score of 86,625. The Independent t-test shows a Sig (2-tailed) value of 0.000 (<0.05), which means there is a significant difference. Thus, the picture book with local Balinese wisdom was declared valid, practical and effective for instilling the value of the mutual cooperation character of fifth grade elementary school students. The implications of the results of developing story books on student learning outcomes can then be used as a companion to the 2013 curriculum book.
Penerapan Model Pembelajaran Somatic, Auditory, Visualization, Intellectualy Berbantuan Multimedia Berpengaruh Terhadap Kompetensi Pengetahuan IPA
Authors: Lestari N. M. D. D. , Wiyasa I K. N. , Manuaba I. B. S.
Published: October 2022

Penelitian ini bertujuan untuk menganalisis pengaruh model pembelajaran Somatic, Auditory, Visualization, Intellectualy (SAVI) berbantuan multimedia terhadap kompetensi pengetahuan IPA Kelas V. Penelitian ini merupakan penelitian eksperimen semu dengan rancangan Non-equivalen Posttest Only Control Group Design. Populasi dalam penelitian ini adalah kelas V SD Negeri Gugus Dr. Soetomo Denpasar Selatan tahun ajaran 2019/2020 yang berjumlah 226 siswa, sedangkan sampel yang ditentukan dengan teknik cluster random sampling berjumlah 76 siswa yang dibagi menjadi dua kelas, yaitu kelas V SD Negeri 4 Sesetan sebagai kelompok eksperimen dan kelas V SD Negeri 14 Sesetan sebagai kelompok kontrol. Pengumpulan data kompetensi pengetahuan IPA dilakukan dengan memberikan posttest dalam bentuk tes objektif pilihan ganda biasa berjumlah 36 butir tes yang telah melalui uji validasi isi oleh dua pakar dan uji validasi empirik yang meliputi uji validitas, uji reliabilitas, uji tingkat kesukaran dan uji daya beda. Data yang diperoleh dianalisis menggunakan uji-t dengan rumus polled varians. Berdasarkan hasil analisis diperoleh thitung = 4,51 yang kemudian dibandingkan dengan ttabel pada taraf signifikansi 5% dengan dk = 74 diperoleh 2,00. Hasil analisis hipotesis menunjukkan thitung = 4,51 > ttabel = 2,00, maka H0 ditolak atau Ha diterima. Jadi, dapat disimpulkan bahwa terdapat pengaruh yang signifikan model pembelajaran SAVI berbantuan multimedia terhadap kompetensi pengetahuan IPA kelas V SD Negeri Gugus Dr. Soetomo Denpasar Selatan tahun ajaran 2019/2020.Kata kunci: SAVI, multimedia, kompetensi pengetahuan IPA
Model Experiential Learning Berbantuan Video Berpengaruh Terhadap Kompetensi Pengetahuan IPA
Authors: Suryantini Ni Luh Intan , Ardana I Ketut , Sri Asri I.G.A. Agung
Published: October 2022

Masalah yang menjadi dasar dilaksanakannya penelitian ini adalah sebagian besar siswa mengalami kesulitan dalam mengkonstruksi pengetahuan awal, siswa juga mengalami kesulitan dalam memahami pembelajaran yang bersifat abstrak dan kompleks sehingga berdampak pada kompetensi pengetahuan IPA siswa. Penelitian ini bertujuan untuk mengetahui perbedaan kompetensi pengetahuan IPA antara kelompok siswa yang dibelajarkan melalui model experiential learning berbantuan video dan kelompok siswa yang dibelajarkan melalui pembelajaran konvensional pada siswa kelas V. Jenis penelitian ini adalah eksperimen semu menggunakan posttest-only no-treatment control group design. Populasi penelitian ini sebanyak 203 siswa. Sampel diambil menggunakan teknik random sampling. Sampel yang diperoleh yaitu kelompok eksperimen sebanyak 30 siswa dan kelompok kontrol sebanyak 32 siswa. Data hasil post test kompetensi pengetahuan IPA dikumpulkan menggunakan instrumen berupa tes objektif pilihan ganda biasa sebanyak 32 butir tes yang telah divalidasi. Analisis data kompetensi pengetahuan IPA menggunakan statistika inferensial. Rata-rata nilai post test kelompok eksperimen 80,067, dikategorikan baik pada PAP skala lima dan kelompok kontrol 72,375, dikategorikan cukup pada PAP skala lima. Rata-rata kelompok eksperimen lebih dari kelompok kontrol. Hasil analisis data menyatakan thitung = 9,675 > ttabel = 2,000 pada taraf signifikan 5% dengan dk=60 maka Ho ditolak, yang berarti bahwa terdapat perbedaan kompetensi pengetahuan IPA antara kelompok siswa yang dibelajarkan melalui model experiential learning berbantuan video dan kelompok siswa yang dibelajarkan melalui pembelajaran konvensional pada siswa kelas V. Implikasi penelitian ini secara umum yaitu model experiential learning berbantuan video ini dapat dijadikan alternatif bagi guru dalam proses pembelajaran untuk meningkatkan kompetensi pengetahuan IPA siswa.Kata kunci: Experiential Learning, Video, Kompetensi Pengetahuan IPA
Menstimulasi Perilaku Sopan Santun Pada Anak Usia Dini Melalui Media Permainan Ular Tangga
Authors: Savitri I Gusti Ayu Putu , Tegeh I Made , Asril Nice Maylani
Published: October 2022

Kurangnya perkembangan moral pada anak menyebabkan rendahnya perilaku sopan santun pada anak usia dini. Masih ada siswa yang kurang sopan saat mengikuti pembelajaran di kelas. Hal ini disebabkan guru kurang menstimulasi perkembangan moral pada anak. Penelitian ini bertujuan untuk menciptakan media permainan ular tangga perilaku untuk menstimulasi perilaku sopan santun pada anak usia dini. Jenis penelitian ini yaitu penelitian pengembangan dengan model ADDIE, namun pengembangan ini hanya sampai pada tahap pengembangan (development). Subjek penelitian terdiri atas 1 orang ahli media dan 1 orang ahli materi pembelajaran. Metode yang digunakan untuk mengumpulkan data yaitu observasi, wawancara dan kuisioner. Instrument yang digunakan untuk mengumpulkan data yaitu kuesioner. Analisis data dilaksanakan melalui analisis kualitatif dan kuantitatif. Hasil penelitian yaitu nilai rata-rata CVR yakni 1.00 dan CVI 1.00 dengan kriteria sangat tinggi. Dapat disimpulkan bahwa media permainan ular tangga perilaku yang dikembangkan valid dan layak digunakan pada pembelajaran.  Implikasi penelitian ini yaitu guru dapat menggunakan media permainan ular tangga perilaku untuk menstimulasi perilaku sopan santun pada anak usia dini dalam pembelajaran.