bluuebunny/crossref_metadata_2025_split huggingface dataset:
Berkreasi Bersama Pembuatan Media Kantong Berhitung Berbasis Teori Bruner Bagi Guru Sekolah Dasar
Authors: Fitri Ayu , Suparman Tarpan , Asmara , Andes Safarandes , Fajar Muhammad Jelang 
Published: June 2024

Improvements in information technology have created several innovative digital learning media. However, teachers often face obstacles in creating or using this media due to limited technological knowledge or inadequate facilities. As an alternative, using number-counting bags with straws might be an easier solution for teachers to practice and use in the learning process. The activity "Creating Together in Making Counting Bag Media Based on Bruner's Theory for Elementary School Teachers" aims to improve the ability of elementary school teachers to produce effective mathematics learning media. This activity involved 17 teachers from the Tunas Dharma Private Elementary School. The training process is carried out through the stages of preparation, delivery of material, creation of learning media, media presentation, and evaluation. From this training activity, it can be seen that the skills of teachers, student enthusiasm for learning, and the quality of mathematics learning in elementary schools have increased through the use of creative and effective number-counting bag media.
Innovation in The Development of an Electronic Practicum Book of IT-Based Learning Media Oriented to The Team-Based Project
Authors: Siregar Budi Halomoan , Kairuddin  , Mansyur Abil , Yusoff Nazhatul Sahima Mohd 
Published: June 2024

Belum terdapat buku praktikum yang memenuhi standar kualitas tinggi (valid, praktis dan efektif) yang dapat digunakan sebagai panduan belajar untuk mengembangkan media IT. Penelitian ini bertujuan untuk menghasilkan satu buku praktikum media IT yang terintegrasi dengan prinsip-prinsip pembelajaran Team-Based Project yang memenuhi standar. Untuk menghasilkan produk yang diinginkan, maka dilakukan penelitian R&D dengan model 4D yang terdiri dari empat fase: pendefinisian, desain, pengembangan dan penyebarluasan. Subjek penelitian ini adalah mahasiswa calon guru pada matakuliah media pembelajaran berbasis IT yang terdiri dari 63 orang (kelas A dan B). Untuk memperoleh data yang diperlukan, maka digunakan beberapa instrumen: lembar observasi, lembar validasi, lembar kepraktisan, dan lembar keefektifan berupa essay test dan lembar respon mahasiswa, kemudian data dianalisis secara kualitatif dan kuantitatif. Berdasarkan hasil penelitian, buku tersebut memenuhi 3 standar kualitas yang ditentukan, dan terbukti adanya peningkatan kemampuan mahasiswa dalam menghasilkan produk media IT yang relevan dengan kebutuhan siswa sebagai yang termasuk pada warga digital.
There are no practicum books that are valid, practical, and of good quality that can be utilized as study aids for creating IT media. This study aims to create an IT media practicum book that is integrated with team-based project principles that meet quality standards. R&D research is conducted using a 4D model, which consists of four processes, to produce the desired product: (1) define, (2) design, (3) develop and (4) disseminate. The subjects of this research are students who are prospective mathematics teachers and are taking IT-based learning media courses consisting of 63 people (classes A and B). The research data was obtained through several instruments: (1) observation sheets, (2) validation sheets, (3) practicality sheets, and (4) effectiveness sheets in the form of essay tests and student response sheets, then the data were analyzed qualitatively and quantitatively. Based on the research findings, the book has met the three specified quality standards, and it is proven that there is an increase in students' ability to understand development concepts and create IT media that are relevant to the needs of native digital learners.
Cognitive Conflict Strategy: Mathematical Representation Based on Cognitive Style
Authors: Salam Mohamad 
Published: June 2024

Kajian ini bermaksud untuk mendeskripsikan jenis representasi matematis siswa berdasarkan gaya kognitif dalam menyelesaikan masalah integral setelah diberikan pembelajaran strategi konflik kognitif. Penelitian ini merupakan penelitian eksploratif dengan menggunakan pendekatan deskriptif-kualitatif. Subjek penelitian ini adalah mahasiswa Jurusan Pendidikan Matematika Universitas Halu Oleo angkatan tahun 2021 yang terdiri dari satu mahasiswa dengan gaya kognitif reflektif and satu mahasiswa dengan gaya kognitif impulsif. Data penelitian diperoleh melalui teknik pemberian tes and wawancara, and dianalisis secara kualitatif. Hasil yang diperoleh adalah siswa yang memiliki gaya kognitif reflektif dalam menyelesaikan masalah integral setelah diajarkan strategi konflik kognitif adalah melakukan representasi gambar atau representasi geometri, representasi verbal and representasi simbolik, serta melakukan penerjemahan dari berbagai jenis representasi, yaitu dari representasi geometri ke representasi verbal, and kemudian ke representasi simbolik serta sebaliknya. Seandgkan, siswa dengan gaya kognitif impulsif melakukaan representasi simbolik, melakukan representasi geometrik tetapi salah, tidak melakukan representasi verbal, tidak melakukan representasi matematis, and tidak melakukan penerjemahan dari berbagai jenis representasi.
This study aimed to describe types of students' mathematical representations based on the cognitive style in solving integral problems after learning cognitive conflict strategies. This exploratory research used a descriptive-qualitative approach. The participants were two students of Mathematics Education Department at Halu Oleo Universit, class of 202, consisting of one student with a reflective cognitive style and one student with an impulsive cognitive style. The research data were obtained through tests and interviews and analyzed qualitatively. The findings pointed out that the student with a reflective cognitive style performed images or geometric representations, verbal representations, and symbolic representations, as well as translated various types of representations, starting from geometric representations to verbal representations, and then to symbolic representation and vice versa. Meanwhile, the student with an impulsive cognitive style performed symbolic representations, inaccurate geometric representations, but lacked verbal representations, mathematical representations, and translation of various types of representation.
Improved Problem-Solving Skills Using Mathematics Module
Authors: Nadila Desi , Mandailina Vera , Mahsup  , Mehmood Saba , Abdillah  , Syaharuddin  
Published: June 2024

Banyaknya peneliti yang telah melakukan penelitian yang berkaitan dengan peningkatan kemampuan pemecahan masalah dengan menggunakan modul matematika. Tujuan dari penelitian ini adalah untuk menganalisis kembali hasil-hasil penelitian pada perbandingan tingkat hasil belajar siswa terhadap pemecahan masalah dengan menggunakan modul matematika, berdasarkan jenjang pendidikan. Metode yang di gunakan dalam penelitian ini adalah Meta-analisis. Hasil penelusuran ditemukan sebanyak 61 data yang memenuhi syarat dan ketentuan dari database Geogle Scolar, DOAJ, dan Scopus dari jumlah peserta didik (N), nilai uji fisher (F), nilai uji student (t), nilai uji korelasi (r) dan ketuntasan klasikal yang diambil bersdasarkan dengan kata kunci. Dan hasil data akan dianalisis menggunakan sofware JASP dengan menginput nilai Effect Size (ES) dan standart Error (SE) dari tiap data. Dari hasil analis data dapat terlihat peningkatan yang signifikan. Hasil analisis data menunjukkan tingkat perbandingan hasil pemecahan masalah menggunakan modul matematika pada semua jenjang, pada jenjang SD sebesar 96% (kategori tinggi), tingkat SMP sebesar 99% (kategori tinggi), tingkat SMA 101% (kategori tinggi) dan PT sebesar 86% (kategori tinggi). Disimpulkan tingkat perbandingan pada jenjang SMA lebih tinggi dibandingkan dengan jenjang SD, SMP, dan PT.
Many researchers have conducted research related to improving mathematical problem-solving skills using mathematical modules. The purpose of this study is to re-analyze the research on the level of comparison of studies learning outcomes to problem-solving skills with mathematics modules, based on the level of education, namely elementary, junior high, high school, and higher education. The method used in this study is Meta-analysis. The search results found as much as 61 data that met the terms and conditions from the Google scholar, DOAJ, and Scopus databases fisher test value (F), student test value (t), correlation test value (r), and classical completeness taken based on keywords. And the data results next analyzed using JASP software by inputting the Effect Size (ES) and Standard Error (SE) values from each data. From the results of the data analysis, a significant increase can be seen. Improving problem-solving skills using mathematics modules is more widely used at the high school level compared to the elementary, junior high, and tertiary levels. The results of the data analysis showed that there was a comparative level of problem-solving results using mathematics modules at all levels, at the SD level of 96% (high category), SMP level of 99% high (category), SMA level of 101% (high category), and PT level by 86% (high category). It can be concluded that the comparison level at the SMA level is the higher than at the SD, SMP, SMA and PT levels.
Occupational Pesticide Exposure in Parkinson’s Disease Related to GBA and LRRK2 Variants
Authors: Brown Ethan G. , Goldman Samuel M. , Coffey Christopher S. , Siderowf Andrew , Simuni Tanya , Meng Cheryl , Brumm Michael C. , Caspell-Garcia Chelsea , Marek Kenneth , Tanner Caroline M. ,   The Parkinson’s Progression Markers Initiative
Published: June 2024

Background: The penetrance of common genetic risk variants for Parkinson’s disease (PD) is low. Pesticide exposure increases PD risk, but how exposure affects penetrance is not well understood. Objective: To determine the relationship between occupational pesticide exposure and PD in people with LRRK2 and GBA risk variants. Methods: Participants of the Parkinson’s Progression Markers Initiative (PPMI) with a LRRK2-G2019 S or GBA risk variant provided information about occupational pesticide exposure. We compared exposure in carriers with and without PD. Among carriers with PD, we used Cox proportional hazard models to compare time-to impairment in balance, cognition, and activities of daily living (ADLs) between participants with and without prior occupational pesticide exposure. Results: 378 participants with a risk variant provided exposure information; 176 with LRRK2-G2019 S (54 with and 122 without PD) and 202 with GBA variants (47 with and 155 without PD). Twenty-six participants reported pesticide exposure. People with a GBA variant and occupational pesticide exposure had much higher odds of PD (aOR: 5.4, 95% CI 1.7–18.5, p < 0.01). People with a LRRK2 variant and a history of occupational pesticide exposure had non-significantly elevated odds of PD (aOR 1.3, 95% CI 0.4–4.6, p = 0.7). Among those with PD, pesticide exposure was associated with a higher risk of balance problems and cognitive impairment in LRRK2-PD and functional impairment in GBA-PD, although associations were not statistically significant. Conclusions: Occupational pesticide exposure may increase penetrance of GBA-PD and may be associated with faster symptom progression. Further studies in larger cohorts are necessary.
Haemodialysis effects on lipids Profile in patients with advanced renal disease
Authors: Nahi Habbob Salam , A.H. Khalil Sajedha 
Published: June 2024

This study attempts to investigate lipid profile (cholesterol, triglyceride, high density lipoprotein –cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C) and very low-density lipoprotein-cholesterol (VLDL-C)) would be induced potential due to haemodialysis program.
The study included hundred and thirteen (113) samples. Eighty-three (83) patients with end stage renal disease on haemodialysis program including (47) males and (36) females with a mean age of (43.3±18.0) years and range from (20-65) years. All the patients had been on dialysis twice per week for two hours each time. In addition, thirty from healthy volunteers as control.
All subjects were under obligation fasting for twelve hours and the samples were drowning before and 30 minutes after haemodialysis. Evaluation of serum concentrations of cholesterol, triglyceride, HDL-C, by enzymatic method while LDL-C and VLDL-C were calculated by the Friedewald formula.
This study revealed that the changes of lipid profile (cholesterol, triglyceride, HDL-C, LDL-C and VLDL-C) were varied from small changes that statistically not significant between patients up to the highly significant changes between cholesterol and LDL-C before haemodialysis when compared to control. Significant changes are noticed between triglyceride and VLDL-C with control whereas high-density lipoprotein cholesterol didn't change. In male patient’s cholesterol and low LDL-C showed highly significant difference however the rest showed no significant difference. As well as pre and post haemodialysis when compared to control whereas in female lipid profile didn’t show any change. According to age group (20-35) there was a highly significant difference between pre and post haemodialysis compared to control in cholesterol, triglyceride and LDL-C but not in HDL-C. The other two age groups the lipid profile did not show any changes.
Determination of Bioactive Compounds and Antibacterial of The Brown algae Sargassum sp.
Authors: Lazzam Saad Khattaf , Ayal Abdul Wahab Raisan Ayal 
Published: June 2024

Objective of this study was to determine of bioactive compounds and antibacterial activity of Sargassum Sp extract. Pathogenic bacteria, including Pseudomonas aerogenosa, Escherichia coli, Salmonella SP., Bacillus Cereus, Staphyloylococcus aureus, and Streptococcus mutans , as the active chemical compounds were extracted from this algae using solvents (cold water Ethanol and methanol alcohol) with qualitative detection of secondary metabolites of the aqueous extract of this algae, which indicated the presence of phytochemicals analysis such as Amino acid, Alkaloids, Steroids, Phenols, Flavonoids, Glycosides, Terpenoids, Tan inns, Saponins and Carotenoids . The chemical compounds were determined using the gas chromatography mass spectroscopy (Gc-mass) technique of the methanolic extract of sargassum These compounds were represented Muramic acid, Isopropyl Alcohol, Glycerin, Loliolide, Tetradecanoic acid, Pentadecanoic acid, n-Hexadecenoic acid, , Phytol, Oleic acid, Octadecanoic acid, Erucic acid, Ergosta-5,24(28)-dien-3-ol,(3.beta.)- and Stigmasta-5-24(28)-dien-3-ol,( 3.beta)- The aqueous extract of this algae did not show any bioactivity against all bacterial species under study. It was noticed that the methanolic extract was more efficient in its effect on the bacterial species, as the rates of inhibition zones for this extract were (16, 18.66, 16.66, 19, 19.33 and 22.66) mm for each of P. aerogenosa, E. coli, Salmonella Sp., B. cereus., Staph. aureus and S. mutans, respectively.
Lung Cancer classification using an ensemble of CNNs Method in CT Scan Images
Authors: Betti Ghufran Abbas , Naser Ali H. , Tanha Dr. Jafar , Bashazadeh Saeed Bashazadeh 
Published: June 2024

About five million people lose their lives every year to lung cancer, making it one of the leading causes of mortality worldwide. In the last few years, a lot of methods of detection of lung cancer were improved however these could not efficiently diagnose cancer. In this paper, a convolutional neural network (CNN) of robust deep learning is developed. CNN precision raises the deeper that is, however, it causes over-ﬁtting or vanishing gradient problems simultaneously. To solve the issue, the CNN used resort to parallel CNN. It used Pictures the LIDC-IDRI consortium image collection has thoracic CT images that have been annotated for lung cancer diagnosis and screening purposes. The presented model includes result models of CNN which are integrated via ensemble methods and it compare with every model. Results of the simulation illustrate that the presented method's accuracy has developed by 2.18 percent in comparison with the method of the main paper
Theoretical Study of External Electric Field Effect on the Chemisorption of a Spherical Semiconducting Quantum-dot on Graphene
Authors: Fadel Haider , Abd-AlHussien Marwa 
Published: June 2024

In This study, we modified the Anderson-Newns model for atomic chemisorption to be suitable for the chemisorption of a spherical semiconducting quantum-dot on a monolayer pure perfect graphene.
A mathematical expression was used to calculate the occupation numbers for the two levels of the quantum-dot as a function of the normal distance and the external electric field. Appropriate formulas for other chemisorption functions were used by taking into our account the effect of image shift, and a formula for hybridization energy as a function of distance only. The quantum-dot was considered a spherical shape, chooses the type of on-top adsorption on the graphene layer, also taken a fixed value for the correlation energy U to be spin independent and not dependent on distance.
At room temperature T=300 K, the occupation numbers and their corresponding energy levels were calculated by stabilizing all the parameters and varying the strength of electric field individually by both positive and negative directions. The contribution of the negative electric field was more effective on quantum-dot chemisorbed on graphene.
A Plasmonic Photonic Crystal Fiber Sensor with Simplified Features for Identifying Unidentified Analytes
Authors: Yasser Hassan , Benhaliliba Mostefa 
Published: June 2024

In this paper, we present a novel method for building a plasmonic photonic crystal fiber (PCF) sensor with simplified features to identify unknown analytes. Using the special parameters of plasmonic PCFs, the suggested sensor increases the sensitivity and specificity of target analyte detection. We provide a streamlined design approach that reduces manufacturing complexity without sacrificing reliable performance, opening up the sensor to new useful applications. We show the optimal structure parameters for optimizing sensitivity using the finite element method in the COMSOL environment. The suggested configuration attained strong spectral sensitivity throughout an extensive range of the analyte's refractive indices. Furthermore, a perfect linear connection was established between the analyte's refractive index and the resonant wavelength, qualifying the sensor for usage across the whole range of the analyte's refractive indices.
Extraction and Identification of saponin extracts from Lepidium aucheri Boiss and antifungal properties evaluation
Authors: Alkhuzaie Mohammad , Kredy Husam , Guzar Sajid , Charfeddine Bassem , Ines Ouahchi 
Published: June 2024

The analysis by High-performance liquid chromatography (HPLC) revealed that the saponin extracts contain a significant component called (Hederagenin glycoside). The wavelengths and electronic transitions of the active groups of the saponin extract were also determined using the UV-Vis Spectra. The optimal result was obtained by utilizing the Gemini C18 (5 µm) stationary phase manufactured by Phenomenex. They determine the optimal chromatographic conditions for enhancing LC/MS analysis by evaluating several mobile phases on a reversed-phase C18 column. Illustrates the anticipated patterns of fragmentation observed in the mass spectra of substances. The Antifungal activity against Aspergillus flavus, Aspergillus Niger, and Aspergillus Alternaria was determined. The inhibitory effect in vitro was defined to appear, triterpenoid saponins extract showed maximum growth activity inhibitory of fungi against pathogens like Aspergillus Alternaria and Aspergillus Niger (2 cm), at the concentration (100 ppm) and the minimum growth activity inhibitory was against Aspergillus Alternaria (5 cm) at a concentration (25 ppm) compare with control. The triterpenoid saponins extract its ability to grow activity inhibition of fungi type Aspergillus Alternaria, Aspergillus Niger. On the other hand, the percentage of hemolysis activity in human blood increases with a high concentration of triterpenoid Saponins extract.
VIH e intento suicida en el municipio de Ibagué-Colombia durante los años 2020-2021
Authors: Orozco Castillo Stephanie Katherine 
Published: June 2024

El presente estudio analiza la relación entre intento suicida y diagnostico VIH en el municipio de Ibagué Colombia durante los años 2020 – 2021. El estudio tiene un corte observacional (datos obtenidos de las fichas de notificación del Instituto de Vigilancia en Salud Publica de Colombia), transversal, comparativo y de relación entre dos eventos. Se observa que durante el año 2020 se tuvo 1106 intentos suicidas y 361 diagnósticos por VIH; para el año 2021 una frecuencia de 933 intentos suicidas, y 335 diagnósticos por VIH. También se presenta una caracterización sociodemográfica de las poblaciones analizadas. Resultados: En el 2020 con un total de N:1106 (54,23%), mientras que para el año 2021 N: 929 (45,57%), de los cuales 4 (0,20%) son PVV. Ahora bien, en el análisis estadístico se observa: χ²= 2383,83675, P= 0; r= -1; r^2= 1; VALOR ODS RATIO= 0,00165975. conclusiones: No parece haber una relación fuerte entre el riesgo de suicidarse y tener VIH; Se observa que el riesgo del intento de suicidio en la ciudad de Ibagué es de 0,0001%; Con el valor de χ² se rechaza la Hipótesis nula; Con el valor de P se determina que la relación entre las variables es nula.
Palabras clave: salud mental, virus de inmunodeficiencia humana, deseo de muerte, performance, conducta suicida, SIVIGILA.
EGG WEIGHT, SHELL THICKNESS AND CHOLESTEROL CONCENTRATION IN SPECIALIZED BREEDS OF EGG-TYPE CHICKENS AS INFLUENCED BY LAYER AGE
Authors: YAHAYA H.K , OLUTUNMOGUN A.K. , BOLUFAWI E.T. 
Published: June 2024

The effect of breeds on egg quality of egg-type chickens from Plymouth Rock and White Leghorn commercial laying hens was investigated. The aim was to determine the egg weight, cholesterol levels and shell thickness on a commercial poultry farm over twelve weeks. A total of 408 laying hens were evaluated for the two breeds, which commenced from the fifth week into lay for twelve weeks. The birds were aged 24 weeks at the commencement of the study. The biological material consisted of 50 randomly collected eggs per week, and all eggs laid during the study period were weighed. Conventional AOAC methods were used to analyze the eggs. All data were analyzed using the R-core statistical package, and results were presented graphically. The results showed that the White leghorn breed (red, breed 1) had a heavy and significant average egg weight (50-60g) over Plymouth rock (blue, breed 2), which recorded a mean average of 20-37g. Shell thickness was the same for the two breeds at week 1 (47mm). White leghorn had consistent shell thickness between 49 and 53mm, while the Plymouth rock breed increased from 41 to 50mm. Eggs from the Plymouth rock breed had a cholesterol concentration of 0.57 – 0.65 mmol/L, while the White leghorn breed ranged from 0.51 – 0.55 mmol/L. It can be concluded that since the two breeds performed differently under similar dietary and management conditions, the White leghorn breed influenced better and had higher egg weight and shell thickness, while the nutritive value component from cholesterol was higher in the Plymouth rock.