bluuebunny/crossref_metadata_2025 huggingface dataset:
A Scoping Review of Psychological Distress Instruments in Women with Early-Stage Breast Cancer During Chemotherapy
Authors: Alanazi Amal , Kelly Debra , Weaver Michael , Lyon Debra E.
Published: October 2022

Background: Psychological distress is associated with worsening
symptoms during the active treatment period and lower quality of life in
women with early-stage breast cancer. Many studies have indicated risk
for heightened psychological distress across the breast cancer
trajectory. Aim: The purpose of this review is to examine the
literature for instruments used to measure psychological distress among
women with breast cancer during chemotherapy. Methods: This
study used the Arksey and O’Malley framework of scoping reviews. Two
databases, PubMed & CINAHL, were searched for peer-reviewed original
articles that were published within the last ten years, included
participants with a diagnosis of breast cancer stages I to III, and
receiving chemotherapy, English text articles, and studies that report
psychological distress measures.  Results: The initial
screening yielded 529 relevant studies. After applying the exclusion
criteria, a total of 17 studies concerning the assessment of
psychological distress during chemotherapy were retained for the
analysis of variables and measures of psychological distress. The
instruments used to measure for psychological distress varied with a
total of 22 measures. The most frequently utilized measure was the
Hospital Anxiety and Depression Scale ( n=5), followed by the
Impact of Event Scale ( n=2), the Distress Thermometer (
n=2), and the Perceived Stress Scale ( n=2). 
Conclusion: This review identified the gaps related to
inconsistencies in the operationalization and instruments used to
measure psychological distress among breast cancer survivors during
chemotherapy. Standardization of measures assessing psychological
distress, along with conceptual clarity, is essential for measuring
distress in research and clinical practice.
Ongoing clinical observation of significance #2.7 - Rapid Corticosteroid-induced reduction of blood glucose level in a patient with a hereditary iron transport disorder H63D syndrome
Authors: Diamandis Dr. Carolina , Seideman David , Smith Lucas , Makri Sofia , Steinberg Benjamin , Gangnon Martin , Tudor Adrian , Ivanova Olga
Published: October 2022

Update 2.7

We report the case of a patient who suffers from hypotransferrinemia due
to a genetic defect, subsequently suffers organ damage due to
non-transferrin bound iron (NTBI) and develops a paradoxical reaction of
glucose metabolism as a result of treatment with corticosteroids. To our
knowledge, this is the first description of such an effect in the
medical literature. The mechanism and further course of this phenomenon
are currently still in the dark. Due to its peculiarity, we therefore
publish only the clinical key data for the time being. We reported
earlier about the same patient’s change in his narcolepsy symptoms.
Diagnosis of pelvic endometriosis: a systematic review and accuracy meta-analysis of non-invasive tests.
Authors: Bainton Thomas , Jeyapala Sobanakumari , Zamora Javier , Khan Khalid , Raza Amer
Published: October 2022

Background: Endometriosis is a chronic, often debilitating condition
with a current significant delay from symptom onset to diagnosis.
Objectives: To investigate the accuracy of symptoms, clinical history
and non-invasive tests to predict pelvic endometriosis. Data sources:
Medline, Embase, Web of Science and Scopus from conception to September
2022. Selection criteria: Primary test accuracy studies assessing
selected non-invasive tests against a reference standard diagnosis for
endometriosis. Data extraction and synthesis: Two authors independently
conducted data extraction and study quality assessment. Grading of
evidence was performed using a novel visual pentagon model.
Meta-analyses of test accuracy was estimated using bivariate random
effects models. Results: The 125 included studies (250,574 participants)
showed mixed quality. Studies applying non-surgical
(database/self-reporting) reference standard had a greater risk of bias.
In 98 studies applying surgical reference standard, summary diagnostic
odds ratios were: dysmenorrhoea 2.56 (95% confidence interval
1.99-3.29); pelvic pain 2.56 (1.73-3.74); dyschezia 2.05 (1.36-3.10);
dyspareunia 2.45 (1.71-3.52); family history of endometriosis 6.79
(4.08-11.3); nulligravidity of 2.01 (1.62-2.50); BMI ≥30kg/m2 0.37
(0.19-0.68); TVUSS endometrioma 91.2 (44.0-189); TVUSS invasive
endometriosis 26.1 (9.28-73.5); and CA-125 >35U/mL 16.0
(8.09-31.7). Sensitivity analysis excluding all high-risk studies found
concordant results. Conclusions: This meta-analysis collated the
performance of non-invasive tests for endometriosis across a
comprehensive and geographically varied population. Study quality was
mixed, however results were consistent with high-risk studies excluded.
These findings will inform future prediction models for triage in
primary care. Funding: This research received no specific funding.
Keywords: Endometriosis; diagnosis; laparoscopy; pelvic pain;
sub-fertility
Epidemiology of Gastric Cancer in Saudi Arabia
Authors: ALGHAMDI IBRAHIM
Published: October 2022

Objectives: This study examines the epidemiological trend of gastric
cancer (GC) in all Saudi Arabian administrative areas. It examines the
incidence of diagnosed cases, the age-specific incidence rate (AIR), the
crude incidence rate (CIR), and the age-standardized incidence rate
(ASIR) stratified by age group, year of diagnosis, and region. Methods:
From 2004 to 2017, a retrospective descriptive epidemiological study of
all GC cases recorded in the Saudi Cancer Registry (SCR) was conducted.
The data were analysed with descriptive statistics, the t-test, the
Kruskal-Wallis test, and the sex ratio using version 20.0 of the
Statistical Package for the Social Sciences (SPSS). Results: Between
January 2004 and December 2017, a total of 4,066 GC cases were reported
in the SCR. Riyadh, Najran, and Eastern Region had the highest overall
ASIR of GC among males and females in Saudi Arabia (Males: 4.0, 3.8, and
3.8; Females: 2.6, 2.3 and 2.2 per 100,000 people). In contrast, Jazan
had the lowest overall ASIR of GC among Saudi males and females (1.5 and
0.5 per 100,000 people, respectively). However, the overall ASIR of GC
was statistically higher in men than in women (P-value 0.05), with a
male-to-female ratio of 2.8 per 100,000 in Saudi Arabia. Conclusion:
There was a small decline in the CIRs and ASIRs of GC in Saudi Arabia
Between 2004 and 2017. Riyadh, Najran, and the Eastern Region had the
greatest prevalence of GC among males and females in Saudi Arabia. Men
and women in Jazan, Saudi Arabia, were shown to be the least impacted by
GC. In Saudi Arabia, the rates of GC were substantially greater among
males than among females.
Coordinated design of PSS and multiple FACTS devices based on the PSO-GA algorithm to improve the stability of wind-PV-thermal-bundled power system.
Authors: He Ping , Pan Zhiwen , Fan Jiale , Tao Yukun , Wang Mingyang
Published: October 2022

The application of new energy sources has a significant impact on the
stability of power systems. In order to realize the coordinated design
of multiple Flexible AC Transmission Systems (FACTS) devices in the
wind-PV-thermal-bundled (WPTB) power transmission system to suppress the
low-frequency oscillation (LFO) of the system. In this paper, the Static
Synchronous Compensator (STATCOM) and the Static Synchronous Series
Compensator (SSSC) with additional power oscillation damping controller
(PODC) are designed based on the tie-line transmission power signal to
enhance the improvement effect of FACTS devices on system stability. The
objective function is constructed by considering the transient voltage
stability of the WPTB power transmission system, the real part of the
eigenvalues and damping level of the LFO modes. And the coordinated and
optimized design of Power System Stabilizer (PSS), SSSC-POD and
STATCOM-POD is performed by the hybrid particle swarm optimization
algorithm and genetic algorithm (PSO-GA) and pattern analysis theory of
LFO. Finally, the effectiveness of the designed parameter optimization
method is verified by simulation under various operating conditions,
including new energy unit output change and tie-line transmission power
change.
Electromagnetic Energy Harvester Design for Power Transmission Line
Authors: DALCALI ADEM , BALCI MUHAMMED ŞAMİL , Sakar Selcuk
Published: October 2022

Parallel to the increase in energy demand, the importance of energy transmission lines is also increasing. In order for energy transmission to be carried out correctly, transmission lines must operate uninterruptedly. Therefore, it is important to inspect and monitor the lines and to intervene immediately in case of any fault. The use of Unmanned Aerial Vehicles (UAV) for the inspection and monitoring of these lines provides advantages in terms of both safety and cost. In the study, the design and analysis of electromagnetic energy harvesters have been made in order to provide energy to UAVs. Firstly, the mathematical modeling of the core has been presented. Electromagnetic energy harvesters designed based on this model have been analyzed using the Finite Element Method (FEM). The performances of toroidal magnetic energy harvesters have been investigated according to core size, material properties, air gap and line current. According to the results obtained from the analyzes, the harvester with the best size/energy density has been determined
Geophysical surveying for the detection of ferrous-based objects: possibilities for depth estimative combining analytic signal and vertical integral of the anomalous magnetic field
Authors: Bongiolo Alessandra de Barros e Silva , Szameitat Luizemara Soares Alves , Stevanato Rodoilton , Canata Rafael Espíndola , Pereira Henrique Garcia , Antonelli Francesco
Published: October 2022

The detection of buried clandestine objects challenges forensic and archeologic search group teams on varying terrains, and variable scales of research. Therefore, the study of controlled buried objects is useful for trainings in geophysical acquisition and processing. In this study, we applied ground survey data for testing the magnetic method at controlled geophysical sites for the location of ordinary objects and firearms. We used data filtering techniques in order to facilitate the location of magnetic targets. Also, we experienced the 3D inversion of analytic signal of the vertically integrated magnetic field (ASVI), for the location of targets in depth. As a result, the study determined the location of four magnetic targets, and a three-dimensional view was constructed from the estimated magnetic susceptibility. We concluded that modeling transformed magnetic data is an affordable technique for application in near-surface investigations. Also, this experiment exemplifies the relevance of magnetic methods for location of excavation sites on the basis of geophysical methods.
Phytochemical screening and antioxidant activity of Trigonella cariensis seeds
Authors: Uras Gungor , Kokdil Gamze
Published: October 2022

The genus Trigonella (Fabaceae) has been widely used for both culinary and
clinical purposes since ancient times. The aim of this study was to
investigate the chemical composition and in vitro antioxidant activities of
Trigonella cariensis seeds for the first time. The seeds were collected in
the province of Mersin, Turkey. Chemical analyses were performed using
chromatographic methods. Fatty acid, tocopherol and sterol analyses were
done on hexane extracts and amino acid and mineral analyses were also
carried out on the seeds. The total phenolic and flavonoid contents were
measured by using the Folin-Ciocalteu and Al(NO3)3 methods and in vitro
antioxidant activity was evaluated via different chemical assays including
1,1-diphenyl-2-picrylhydrazily (DPPH?), cupric reducing antioxidant power
(CUPRAC) and 2,2?-azinobis(3-ethylbenzothiazoline)-6-sulphonate (ABTS?+) on
its 80% methanolic extract. The seeds were shown to contain mainly linoleic,
?-linolenic and oleic acids (43.74?0.24%, 18.38?0.45%, and 10.89?0.71%,
respectively). The seeds showed high ?-tocopherol content (233.54?2.48
mg/100 g). The main sterols were ?-sitosterol, delta-5-avenasterol and
campesterol. Na, K, Ca, P, and Mg were the predominant minerals, while
glutamic acid, aspartic acid and lysine (5801?0.15, 3629?0.12 and
2062?0.03 mg/100 g, respectively) were determined as the major amino acids
in the seeds. The total phenolic and flavonoid contents were 3.34?0.02 mg
GAE/g seed and 0.96?0.09 mg QE/g seed, respectively. The results of the
ABTS?+, DPPH? and CUPRAC methods were 43.22?3.14%, 31.15?1.79% and
9.67?0.78 mM AAE/g, respectively. In conclusion, T. cariensis seeds provide
nutritional value with a good source of polyunsaturated fatty acids,
?-tocopherol, ?-sitosterol, some amino acids and minerals and medicinal
properties with total phenolic and flavonoid contents and antioxidant
activities.
The growth performance and nutrient digestibility of pigs fed rain tree (Albizia saman) pods as a replacement for maize
Authors: Irekhore Oluwakemi , Akinsoyinu Akintunde , Bello Kazeem
Published: October 2022

The growth performance and nutrient digestibility of pigs fed diets
containing rain tree pods (RPs) were evaluated using 20 pigs. Five diets
were formulated with RP replacing maize in the control diet at 10, 20, 30
and 40%. The pigs were randomly allotted to the 5 dietary treatments, with 4
replicates of one (1) pig per replicate, and fed ad libitum for eight weeks.
Data were collected on initial weight, final weight (FW), daily feed intake
(DFI), daily weight gain (DWG), feed conversion ratio (FCR), cost per
kilogram feed (CKF), and feed cost per kilogram weight gain. At week eight,
the pigs were moved into individual metabolic crates for a digestibility
trial. Rain tree pods, feed and fecal samples were analyzed for proximate
composition, and metabolic energy was calculated following standard
procedures. The apparent digestibility of dry matter, crude protein, ether
extract, ash, and nitrogen-free extract were calculated. Data generated were
analyzed using a one-way analysis of variance. The growth performance of
pigs fed a 10% RP diet was similar to those fed a control diet. As the
dietary inclusion of RP increased, the DFI, DWG and FW of the pigs decreased
(p<0.001). The FCR increased while CKF reduced significantly (p<0.001) with
an increasing level of RP in the diets. Apparent nutrient digestibility was
depressed (p<0.01) with the inclusion of RP in the diets of pigs. This study
concluded that the inclusion of 10% RP as a replacement for maize in the
diet of growing pigs gave optimal growth performance and reduced feed cost.
Exploring the optical and electrical characteristics of CuO/CuCo2O4 composites
Authors: Deraz Nasrallah , Saleh Hisham , Abdel-Karim Amal
Published: October 2022

Series of CuO/CuCo2O4 composites were prepared by using the combustion
method followed by heating at 750oC with different molar ratios of Cu/Co.
Characterization of different composites is systematically investigated with
various analytical techniques. X-ray diffraction patterns and
Fourier-transform infrared spectroscopy indicate the growth of well
crystalline CuCo2O4 nanoparticles with a cubic spinel structure. Images of
transmission electron microscope and scanning electron microscope show a
uniform particle distribution. From UV-visible spectra, the calculated
optical band gaps of various solids were ranged between 1.2 and 1.8 eV.
Electrical properties were measured at temperature ranged from 303 to 463 K
in a frequency range from 102 to 106 Hz. The AC conductivity satisfied the
Jonscher equation, especially at high frequency. The obtained data of
conductivity and dielectric constant indicated that the prepared samples
behave as semiconductor materials. Finally, it can be concluded that the
CuO/CuCo2O4 composite showed attractive multi-functional features for
electrical applications.
Superalloy/Al2O3 type composite compacts obtained by spark plasma sintering from mechanically alloyed powders
Authors: Prică Călin , Sechel Niculina , Neamțu Bogdan , Marinca Traian , Popa Florin , Chicinaș Horea , Chicinaș Ionel
Published: October 2022

Fe-base Superalloy/Al2O3 type composite compacts were successfully obtained by spark plasma sintering from mechanically alloyed powders. The superalloy powders without Al2O3 and superalloy/Al2O3 type composites powders with 5 and 10 %vol. Al2O3 were synthesized from elemental powders in a high energy planetary mill. The influence of the milling process on particle size evolution has been determined using a Laser Particle Size Analyzer with an analysis field of 0.1-1000 ?m. The composite compacts were obtained by spark plasma sintering. Both, composite powders, and compacts were investigated by X-ray diffraction (XRD), high temperature X-ray diffraction (HT-XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX).
The effect of the addition of construction & demolition waste on the properties of clay-based ceramics
Authors: Angjusheva Biljana , Ducman Vilma , Fidanchevski Emilija
Published: October 2022

Waste glass and reclaimed brick are types of construction and demolition
waste (C&DW) that could potentially be used as secondary raw materials in
the production of ceramics. Ceramics based on clay, waste demolished brick
(5-15 wt.%) and waste glass (5-20 wt.%) were produced by pressing (P = 68
MPa) and subsequently sintered at 900, 950, 1000, and 1050 oC for one hour.
The physical and mechanical properties of the ceramics obtained were
evaluated. The addition of demolished brick decreased the density and
mechanical properties of the clay specimens and increased the water
absorption. The incorporation of waste glass improved the sintering behavior
and its mechanical properties. The addition of 20 wt.% waste glass and 10
wt.% waste demolished brick into the clay matrix improved the flexural
strength by up to 20.6 % and decreased the water absorption by up to 22 %.
The approach presented promotes an opportunity to recycle construction and
demolition waste into alternative resource materials, and represents a
positive contribution to the environment.
Sustentabilidad Energética: un panorama en la industria petrolera global
Authors: MATTEO CARMEN AURORA
Published: October 2022

Uno de los retos de mayor significación que enfrenta la humanidad con grandes posibilidades de transformación, es alcanzar una sociedad sustentable. La necesaria transición hacia la descarbonización de la economía se está planteando a nivel global; las advertencias sobre el pico del petróleo y la cada vez mayor tendencia hacia el uso de energías renovables, invitan a considerar un nuevo modelo energético, sustentable y ambientalmente inteligente. De allí que se presenta en este trabajo un análisis general del comportamiento de la industria petrolera global con un horizonte 2050 y las posibilidades de adoptar estrategias que faciliten la transición hacia un nuevo modelo energético. Para comprender la diversidad y complejidad de caracteres implícitos se utiliza el enfoque interpretativo y como método, la hermenéutica; asimismo, se asume las modalidades consecutivas de exploración-descripción-explicación para extraer aspectos fundamentales de la sustentabilidad y su integración al modelo energético actual; y a partir de diversas técnicas de análisis, la adopción de una visión totalizadora, y un proceso de categorización, explicación, abstracción y sistematización, se formularon algunas estrategias para ir propiciando la transición hacia la sustentabilidad energética.
Salud mental en profesores de educación superior
Authors: Tellez Bedoya Carolina
Published: October 2022

El propósito del estudio consistió en desarrollar un análisis descriptivo respecto a la Salud Mental en los profesores de educación superior, comenzando con una revisión generalizada de la temática continuando con su transformación tanto en el orden internacional como nacional y posteriormente se direccionó al contexto de los profesores de educación superior.

En ese orden de ideas, se realizó un estudio de tipo documental, descriptivo y analítico basado en la herramienta “ficha descriptiva analítica”, la cual favoreció la visualización de la documentación revisada.

Para finalizar, es importante resaltar el impacto de las acciones direccionadas a favorecer la salud mental en la población objeto de estudio, profesores de educación superior; estos lineamientos fueros son asociados a las intervenciones a nivel primario, secundario y terciario, con un énfasis en el diseño de programas donde involucren características de personalidad, actitudes del entorno y condiciones ambientales. Luego, fueron descritas distintos tópicos para orientar futuros estudios investigaciones y asociación en otras variables de análisis.
К ВОПРОСУ О ДЕНЕЖНОМ ОБРАЩЕНИИ В БИАФРЕ
Authors: Андреев Антон
Published: October 2022

Исследован вопрос денежного обращения на территории Восточной Нигерии в XI-XX веках и на территории независимой Биафры в 1967-2022, систематизирована информация об официальных выпусках монет и банкнот Биафры, а также неофициальных выпусках монетовидных изделий (токенов) под именем Биафры.
ANALYSIS OF COGNITIVE ASSESSMENT INSTRUMENTS IN GENERAL BIOLOGY LEARNING MEDIA
Authors: Ageng Prayitno Trio , Hidayati Nuril
Published: October 2022

The existence of cognitive assessments in learning media that does not require much consideration for their feasibility as a measuring tool is one of the problems that arise because it can cause misinformation obtained by the teacher. The purpose of this study was to determine the construct validity and content of the cognitive assessment instrument and the validity of the questions, the reliability of the questions, the distinguishing power of the questions, and the level of difficulty of the questions on the cognitive assessment instruments to be used in general biology learning media. The research method used is descriptive quantitative through a survey involving one expert and 58 students of the Biology Education study program of IKIP Budi Utomo. The research limitation is a cognitive assessment of microbiology material in general biology courses. The type of instrument analyzed is a test. The results obtained are that the cognitive assessment instrument has a valid level of validity from the aspect of construct and content, the validity of the questions in the valid category, the reliability of the questions is moderate, the discriminatory power of the questions is good, and the level of difficulty of the questions is moderate. The conclusion is that the cognitive assessment instrument is appropriate to be used as an appropriate measuring tool for microbiology material in general biology learning media.
ANALYSIS OF SCIENCE LITERATURE ABILITY OF BIOLOGY EDUCATION STUDENTS IN PLANT PHYSIOLOGY COURSE
Authors: Nadya N , Hasanah Uswatun , Akram Muhammad , Napitupulu Martina Asiati
Published: October 2022

Prospective teachers are required to have adequate scientific literacy skills to support the achievement of the National SDGs 2030 goals. Research is needed that aims to analyze the level of scientific literacy skills of students of the 2018 Biology Education Study Program, Medan State University in the Plant Physiology course which was held at UNIMED in May-July 2021. This study uses a mixed descriptive method with a sequential explanatory strategy. The sample in this study amounted to 76 students who were determined through a random sampling technique. The data in this study were collected through a closed questionnaire and an observation sheet for the KKNI Plant Physiology assignment. This study uses descriptive statistical analysis techniques for quantitative data, questionnaires, and interactive analysis for qualitative data, the KKNI's task observation includes three activity lines, namely data reduction, data presentation, and conclusion drawing. The results obtained through questionnaires showed that the scientific literacy skills of Biology education students at the State University of Medan in the Plant Physiology course were in the high category with a percentage of 63.72%. Meanwhile, the scientific literacy ability of Biology education students at the State University of Medan based on the task analysis of the KKNI for the Plant Physiology course is in the low category with a percentage of 55.69%.
THE EFFECT OF POE (PREDICT-OBSERVE-EXPLAIN) LEARNING MODEL ON LEARNING OUTCOMES AND STUDENT RETENTION ON PLANT TISSUE
Authors: Sagala Nia Amriza , Sidabutar Hudson , Tanjung Mike Stavsley
Published: October 2022

This study aims to determine the effect of the POE learning model on student learning outcomes and retention. This study uses a quantitative approach with a pre-test, posttest, and retest design. The type of research used is a quasi-experimental research with a research sample of class XI students at SMA Negeri 1 Aek Natas in the 2020/2021 learning year. The sampling technique used simple random sampling. The data analysis technique used is to test the hypothesis using the T-test at a significant level of α = 5%. If the price of the F-count is greater than Ftable, then H0 is rejected, and Ha is accepted. Learning outcomes are measured by giving a posttest to students, while retention is measured by providing a retest for 14 days two times. The mean of learning outcomes in the experimental class was 83.88, while the mean learning outcomes in the control class were 78 so that there was a difference in learning outcomes between the control class and the experimental class by 5.88 points. The average retention 1 in the experimental class was 97.07%, while the average retention 1 in the control class was 88.06%, so that there was a point difference of 9.01%. The second retention means results in the experimental class obtained 95.77%, while in the control class, it was 79.53% so that there was a point differential of 16.24%. The experimental class decreased retention points 1 to 2 by 1.3% and for the control class by 8.53%. This study indicates that there is an effect of the POE (Predict-Observe-Explain) learning model on student learning outcomes and retention of plant tissue material.
CORRELATION BETWEEN METACOGNITION ABILITY AND STUDENTS' SCIENCE PROCESS SKILLS ON CELLULAR BIOPROCESS MATERIALS
Authors: Cindiati Maya , Suharsono S , Diella Dea
Published: October 2022

Metacognitive skills are required for students to manage and keep track of their understanding of fact-finding and concept-building by scientific process skills. This research aims to determine the correlation between metacognitive skills and students' scientific process skills on cell-based bioprocessing topics. The population of this study were all class of XI MIPA in one of SMA Negeri Kota Tasikmalaya. The research samples were 30 students from class XI MIPA 2 selected based on the purposive sampling method. The research instruments used contained an essay test consisted of 21 questions with indicators developed by Tawil and Liliasari to examine the scientific process skills. In contrast, the questionnaire adapted from the Metacognitive Awareness Inventory consisted of 50 positive statements with 4 Likert-scale-based alternative answers to examine the metacognitive skills. The normality and linearity test are conducted before performing the hypothesis test as a prerequisite. The hypothesis testing based on bivariate correlation and regression with an α of 0.05 showed a positive correlation between the two variables. The correlation coefficient with a value of 0.544 represents a moderate correlation between the two variables. The determination coefficient shows the contribution of 29.6% from the metacognitive skills in students' scientific process skills on cell-based bioprocessing topic.
ANALYSIS OF STUDENTS' LEARNING DIFFICULTIES IN PROTIST MATERIAL
Authors: Sihombing Mailin Sonia Gira , Pranoto Hendro
Published: October 2022

This study aims to determine learning difficulties based on students' understanding of protist material for class X IPA in SMA Negeri in Deli Serdang Regency, North Sumatra Province, and the main factors causing students' learning difficulties. The research method used in this research is descriptive quantitative. The sample of this study was taken at random, amounting to five schools. The data collection technique used is a two-tier multiple-choice diagnostic test instrument to identify students' learning difficulties and a questionnaire instrument to determine the causes of students' learning difficulties. The results showed that learning difficulties from the highest to the lowest were analyzing the basic grouping of protists, understanding how protists reproduce, recognizing protist objects, explaining the morphological characteristics of protists, and understanding the role of protists in protists life and grouping protists into several classes. The main factors causing student learning difficulties are the facilities and infrastructure and the nature of the protist material. Good planning of practicum activities, selection of appropriate learning methods, and linking learning to everyday life must be done by teachers to help overcome student learning difficulties.
SONG AND VIDEO ANIMATION ON VIRUS: MULTIMEDIA TO INCREASE STUDENT'S LEARNING ACHIEVEMENT
Authors: Suhadi Anggi Putri , Nihlah Khairotun , Miarsyah Mieke , Ristanto Rizhal Hendi
Published: October 2022

This study aimed to improve student achievement through song-based multimedia and animated videos on viral material. This type of research is (R&D) adapting the ADDIE model. The population is class X SMA IT Baitul Qurro South Tangerang, sampling using non-probability sampling with saturated sampling technique where the entire population is a sample of 45 students. Learning achievement is measured using instruments that have been validated by experts (teachers and biology lecturers) using essays (C1- C6) for cognitive tests, questionnaires for affective tests, and observation sheets for psychomotor tests. The test was conducted before (pretest) and after (posttest) learning. Data analysis used the average score, percentage, and N-gain. The data obtained were analyzed by normality and homogeneity tests. The results obtained indicate that song-based multimedia and animated videos can improve student achievement with an average N-gain, namely: Cognitive domain of 56.8% (quite effective); The affective domain is 57% (quite effective), and the psychomotor domain is 75% (quite effective).
Metabolism and physiology of Lactobacilli: a review
Authors: Mesquita Amanda Rafaela Carneiro de , Silveira Lucas Pacheco da Mota , Cruz Filho Iranildo José da , Lima Valmir Felix de , Silveira Filho Vladimir da Mota , Araujo Ana Albertina , Silva Tacilene Luzia da , Araújo Klewdma de Freitas , Macedo Luciana da Silva
Published: October 2022

The consumption of probiotic microorganisms in fermented products has been used for centuries. Lactobacillus spp. is one of the main species studied due to its various beneficial effects to health. This species has great ability to adapt to hostile environments, produces antimicrobial substances capable of destroying or inhibiting the growth of pathogenic bacteria and is involved in the digestion of complex carbohydrates not digested by the host. However, there are still some uncertainties and disagreements about the precise biochemical metabolism of lactobacilli. The aim of this article is to review the metabolism and physiological characteristics of lactobacilli for a better understanding of the benefits that these bacteria promote in the host and for the development of strains and probiotic products with higher health benefits.
Association Between Serum Matrix Metalloproteinase-2 Levels and Mean Doppler Pulsatility Index of Uterine Arteries in Patients with Preeclampsia
Authors: Nikolov A. , Popovski N. , Hristova I.
Published: October 2022

Background: Мatrix metalloproteinase-2 (MMP-2) is an enzye from the gelatinases family involved mainly in collagen degradation. It is also known as a key regulator of normal vascular remodelling during a healthy pregnancy. Failure of regulation of MMP-2 has been associated with abnormal vasodilation, placentation, uterine expansion and development of preeclampsia (PE). Aims: (1) determine serum MMP-2 levels in women with PE and healthy pregnancy, (2) evaluate mean uterine arteries Doppler pulsatility index (UtA PI) and (3) investigate the a possible association between these parameters.

Materials and methods: This was a case-control study. Fifty-five women with PE (mean age 24.9 ± 6 years) and a control group of 35 women with normal pregnancies (mean age 24.7 ± 5.4 years) were examined. An enzyme-linked immunosorbent assay (ELISA) was used to determine serum levels of MMP-2. Mean UtA PI were evaluated by Doppler velocimetry.

Results: Serum ММР-2 levels in preeclampsia were significantly higher than in women with normal pregnancy 11.7 (9.1÷15.5) vs. 7.7 ng/ml (6.5÷13.4) (p = 0.016). Mean UtA PI was significantly higher in preeclampsia than in healthy pregnant women: 1.12 (0.82÷1.5) vs. 0.75 (0.69÷0.85); (p = 0.024). ММР-2 correlated with UtA PI (r = 0.214; p = 0.043). Cutoff value at 14 ng/ml for MMP-2 was found to discriminate between PE and healthy pregnancy.

Conclusion: Our data showed an association between serum MMP-2 and Mean UtA PI. We suggest that MMP-2 could have a potential imply on maternal uterine arteries’ structure, favoring their constriction, increased resistance and abnormal uterine vascular remodeling. Further studies are warranted to clarify whether determination of MMP-2 cutoff value might contribute in the diagnosic work-out strategy for PE.
Conservative Physiotherapy Treatment of Femoroacetabular Impingement
Authors: Nikolova A. , Yordanov Y. P.
Published: October 2022

The femoro-acetabular impingement (FAI) syndrome is a motion-related disorder of the hip joint with premature contact between the acetabulum and the proximal femur. It is a relatively new clinical entity and no strict treatment protocols and guidelines have been established yet. Furthermore, patients are often misdiagnosed and not properly treated. We report a clinical case of a young adult female patient presenting with a bilateral FAI-CAM type deformity during the last 2 years. An individual progressive global elastic resistant training program was established which involved stimulation to all affected muscle groups using Pilates concept. Hip-specific and functional lower limb strengthening targeted the deep hip external rotators, abductors and flexors in the transverse, frontal, and sagittal planes. Improving the dynamic stability and Core stability was the main aim of the challenging physiotherapy treatment in this case. A good functional result was registered at 6 months follow up. All therapeutic activities were performed in a pain free range of motion which was of paramount importance for achieving excellent patient compliance and successful outcome respectively. The applied treatment strategy demonstrated to be reliable and could be a helpful tool in the armamentarium of contemporary physiotherapy when dealing with the FAI group of patients.
Probiotic Use in Preterm Neonates: A Review and Bibliometric Analysis
Authors: Yordanov Y.
Published: October 2022

Background: Necrotizing enterocolitis (NEC) is a major health burden in peterm neonates with mortality rates between 21% and 50%. Prophylaxis is of primary importance as early diagnosis is hindered by the lack of specific signs and laboratory markers. Although probiotics have been routinely used for NEC prophylaxis in neonatal intensive care units around the world, clinical trials provide contradictory data, which fuels an ongoing debate about their efficacy and safety.

Aims: To perform a review and bibliometric analysis on available clinical trials and case reports data on the safety and efficacy of probiotics in preterm neonates and identify relevant publication trends and patterns.

Methods: A bibliometric search for publications on the topic was performed in the Web of Science Core Collection database and the resulting records analyzed in bibliometrix package in R.

Results: Trends in publication activity, historical direct citation network relationships and keyword co-ocurrences were discussed in the context of the most recent therapeutic recommendations.

Conclusion: We took a round view of the potential drawbacks to probiotic use in preterm infants and their possible solutions.
Testing the Data Protection Through Implementation of Secure Communication
Authors: Kasapović Suad , Skejić Emir , Huremović Tarik
Published: October 2022

The security of using applications in cloud services and on the Internet is an important topic in the field of engineering. In this paper, two laboratory tests for data transmission protection, specifically designed for different security analysis techniques, are presented and explained. During lab tests on public Wi-Fi networks from the MIDM (“Man in the Middle”) attacks, various monitoring techniques were applied, using a special lab test scenario with Kali Linux penetration tools by creating an SSH tunnel on an Android mobile device. These test benches allow easy data capturing, and the captured data is processed using available software programs. Expected outcomes, practical improvement and security performance assessment are presented in detail, and considered in terms of their value in security engineering. The aim of this paper is to detect and overcome some of the weaknesses of the application of security protocols in a Wi-Fi network environment.
Experiences and Analyses of Reconstruction and Commissioning of Medium Voltage Substation
Authors: Demirović Azelma , Kurtić Amir
Published: October 2022

The paper will present experiences in the reconstruction of the transformer station, which supplies the industrial factory. The previous version of the medium voltage (MV) substation with oil-filled transformers, and the new MV substation with dry and more energy efficient transformers, will be presented. An analysis of the operation and maintenance methods of oil transformers will be given. As oil transformers have many disadvantages, the reason, choice and cost-effectiveness of replacement with new dry transformers will be presented. Tests and measurements of insulation resistance of the winding and transformer protection during commissioning will also be presented. PT100 probes, which are connected to the thermostat, are installed in each low voltage winding of the dry transformer. Testing of this thermal protection of the transformer will be presented as well. Since transformers supply industrial consumers, mostly nonlinear ones, it is important to analyse the losses and life span of transformers. Nonlinear consumers lead to early aging of winding insulation, premature failures and reduction of transformer life. The newly designed and installed MV substation with Ring-main unit is ABB type SafePlus, and its installation and operating instructions will also be presented. The MV is equipped with a protection terminal, so settings and measurements of this terminal in transformer cells will be done. After the commissioning of the transformer station, the most important are diagnostics and periodic tests. Methods of periodic testing of MV substations will be presented in this paper.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI LUAS PENGUNGKAPAN SUKARELA MODAL INTELEKTUAL
Authors: Husna Asmaul , Kamal Maulana
Published: October 2022

This study aims to analyze and obtain empirical evidence regarding the effect of audit committee size, concentration of share ownership, research and development, company age, and foreign ownership on voluntary disclosure of intellectual capital in mining companies. The sample in this study is a mining company listed on the Indonesia Stock Exchange in 2017-2019 which was selected using the purposive sampling method. Based on this method, a sample of 13 companies with 39 financial statements was obtained for analysis The analysis used includes classical assumption test, multiple linear analysis and hypothesis testing. The results of this study indicate that simultaneously and partially the variables of audit committee size, concentration of share ownership, research and development, company age, and foreign ownership have a significant effect on the extent of voluntary disclosure of intellectual capital
FAKTOR-FAKTOR YANG MEMPENGARUHI FINANCIAL DISTRESS
Authors: Suprihatin Neneng Sri , Naifaroh Lulu , Fazarwati Dita
Published: October 2022

The purpose of study was to examine the effect of board composition, agency cost, liquidity, leverage and firm size on financial distress in  sector companies listed on the Indonesia Stock Exchange (IDX) for the 2016-2019 Period. This research a quantitative method. The population in this study are various industrial sector companies listed on the Indonesia Stock Exchange (IDX) for the 2016-2019 period. The sample research method was carried out using the purposive sampling method, based on predetermined criteria there were 13 companies used as samples. The analytical method used is the method of logistic regression analysis. The test results show that: (1) board composition has no effect on financial distress, (2) agency cost has no effect on financial distress, (3) liquidity has no effect on financial distress, (4) leverage has no effect on financial distress, (5) firm size has no effect on financial distress.
STRATEGI BISNIS SERTA DAMPAK PANDEMI COVID-19 PADA PT BPR MITRA KOPJAYA MANDIRI
Authors: Faisal Deni , Syudibyo Yudha Aryo
Published: October 2022

Penelitian ini bertujuan untuk mengetahui penerapan Strategi Bisnis Serta Dampak Pandemi COVID-19 pada PT. BPR Mitra Kopjaya Mandiri. Objek penelitian ini adalah Divisi Bisnis dan Operasional. Penelitian ini dilakukan dengan metode penelitian kualitatif studi kasus. Teknik Pengumpulan data dalam penelitian ini menggunakan wawancara dan dokumen. Pemilihan narasumber dipilih sesuai dengan kriteria tertentu. Hasil penelitian ini menunjukan bahwa pandemi COVID-19 memberikan dampak yaitu liquiditas sedikit terganggu, penurunan aset, adanya risiko kesehatan dan keselamatan karyawan serta nasabah, nasabah atau calon nasabah menolak ditemui, sulit berinteraksi dengan nasabah atau calon nasabah, angsuran bermasalah, penurunan minat pada beberapa produk, risiko pembiayaan meningkat, minat menabung dan deposito turun, dan nasabah banyak yang mengambil dananya. Untuk menanggulangi dampak pandemi COVID-19 PT. BPR Mitra Kopjaya Mandiri melakukan strategi khusus diantaranya penerapan protokol kesehatan, relaksasi angsuran, restrukturisasi angsuran, fokus pada segmen yang memiliki pendapatan stabil, memperluas jaringan, pengendalian biaya, melihat profil risiko nasabah, dan penundaan pembiayaan. Penerapan strategi bisnis memiliki pengaruh dalam menanggulangi dampak pandemi COVID-19 dan merupakan cara untuk mencapai tujuan bisnis. Dalam mencapai tujuan bisnis PT. BPR Mitra Kopjaya Mandiri melakukan strategi pemasaran, pembiayaan, penghimpunan dana, pengawasan, pengembangan SDM, dan operasional. Dalam penerapan strategi bisnis masih terdapat kendala yang dihadapi di antaranya semangat karyawan tidak stabil, divisi SDM belum tertata rapi, banyak syarat untuk pengajuan pembiayaan, hanya ada dua personel pengawasan, dan masih ada SOP yang belum sesuai.
ANALISIS PERBEDAAN HARGA DAN VOLUME PERDAGANGAN SAHAM PADA PERUSAHAAN INDEKS LQ45 DI BURSA EFEK INDONESIA SEBELUM DAN SAAT PANDEMI COVID-19
Authors: Adawiyah Siti , Fachhruddin Rudy , Mahdi Sayed , Saputra Mulia
Published: October 2022

The Pandemic of COVID-19 has affected different areas of life, such as education, social, tourism and the economy. One of the economic instruments affected by the Pandemic is the capital market. The aim of this research was to look at stock prices and share trading volume in LQ45 index firms on the Indonesia Stock Exchange before and after the COVID-19 Pandemic. This type of research is a quantitative study with an event study approach. The data collected is the price and trading volume of shares of LQ45 index companies from December 03, 2019, to May 31, 2020. The results of this study indicate: (1) There are differences in stock prices in LQ45 index companies before and during the COVID-19 Pandemic. (2) There are differences in stock trading volume in LQ45 index companies before and during the COVID-19 Pandemic. These results indicate that the COVID-19 Pandemic has reacted on the capital market by influencing investors' decisions to sell their shares and resulting in a decline in stock prices.
PENGARUH PARTISIPASI ANGGARAN, KARAKTERISTIK TUJUAN ANGGARAN, DAN GAYA KEPEMIMPINAN TERHADAP KINERJA ANGGARAN PADA PEMERINTAH KABUPATEN ACEH BESAR
Authors: Haya Fran Giska Fadhiya , Asmara Jhon Andra , Daud Rulfah M
Published: October 2022

The purpose of this study is to see how participation in budgets, budgetary target features, and leadership style affect budget performance. The study's population is a Regional Work Unit (SKPD) in Aceh Besar District, which was sampled using the purposive sampling methodology. The Head of Service, Head of the Finance Section, and Technical Implementation Officer of Activities represented by the Head of Planning at 34 SKPD Aceh Besar District were the respondents in this study. They were structural officials involved in the creation and implementation of the budget. Multiple linear regression analysis was used to analyse the data in this study, which was done with the help of the statistical programme SPSS version 25.The results showed that (1) budget participation, budgetary goals characteristics, and leadership style had a simultaneous effect on budget performance, (2) budget participation had no effect on budget performance. budget performance, (3) budgetary goal characteristics affect budget performance, (4) leadership style affects budget performance.
DAMPAK PANDEMI COVID-19 TERHADAP HARGA SAHAM DAN VOLUME PERDAGANGAN SAHAM PADA PERUSAHAAN TRANSPORTASI DAN LOGISTIK YANG TERDAFTAR DI BEI
Authors: Rahmawati Aulya , Jalaluddin Jalaluddin
Published: October 2022

This study had a purposed to find out the difference of stock price and stock trading volume before and after the pandemic in transportation and logistics sector companies listed on the Indonesia Stock Exchange. The sample taking by purposive sampling method with some criteria and got 22 entities. The data used is secondary sourced from Indonesia Stock Exchange. This study using paired sample t-test for for data that is normally distributed and Wilcoxon Signed-Rank Test for data that is not. The results of this study indicate that There are significant differences in stock prices and trading volumes before and after the first announcement of the Covid-19 pandemic in Indonesia
PENGARUH FINANCIAL LEVERAGE, UKURAN PERUSAHAAN, DAN KEPEMILIKAN INSTITUSIONAL TERHADAP UNDERPRICING SAHAM SYARIAH SAAT INITIAL PUBLIC OFFERING (IPO) DI BURSA EFEK INDONESIA PADA MASA PANDEMI COVID-19
Authors: Apriliani Siti Raihan , Bustamam Bustamam
Published: October 2022

This study aims to determine and analyze the effect of financial leverage, company size, and institutional ownership on the underpricing of sharia shares during the Initial Public Offering (IPO) during the Covid-19 pandemic on the Indonesia Stock Exchange. The population in this study were all companies that made initial public offerings during the Covid-19 pandemic in Indonesia, namely 2020-2021. The sample selection used purposive sampling technique with predetermined criteria so as to get a sample of 50 companies. The research conducted is quantitative research with the type of research data, namely secondary data. Data analysis used multiple linear regression analysis with the help of SPSS 23 data processing application. The results of this study indicate that either simultaneously or partially financial leverage, company size, and institutional ownership variables have no effect on underpricing of sharia shares.