bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS SEBARAN AIR TANAH MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI WENNER-SCHLUMBERGER UNTUK MENENTUKAN TITIK PEMBUATAN SUMUR BOR DI DURIAN DEPUN
Authors: Halbian Wahyu , Purwanto Andik , Setiawan Iwan 
Published: October 2022

ABSTRAK

Air merupakan unsur paling dibutuhkan bagi keberlangsungan hidup mahluk hidup. Peningkatan debit air pada saat musim hujan dan pengurangan debit pada saat kemarau sering di jumpai di wilayah Kelurahan Durian depun Kecamatan Merigi Kabupatan Kepahiang Provinsi Bengkulu. Metode geolistrik konfigurasi Wenner-Schlumberger diterapkan untuk menganalisis sebaran air tanah. Hasil penelitian menunjukkan bahwa pada lintasan pertama sebaran air tanah menyebar ke arah utara dan selatan lintasan penelitian dengan kedalaman 2-6,67 meter dibentangan 40-50 meter dan 2-13,4 meter dibentangan 52,5-60 meter, lintasan kedua sebaran air tanah mengarah ke barat lintasan penelitian dengan kedalaman 2-9 meter dibentangan 5-15 meter dan lintasan ketiga sebaran air tanah mengarah kearah barat lintasan penelitian dengan kedalaman 2-6.67 meter dibentangan 30-35 meter, kedalam 2-6,76 meter dibentangan 40-50 dan kedalaman 2- ≤ 6,76 meter dibentangan 60-65 meter.

Kata kunci: Metode geolistrik, konfigurasi Wenner-Schlumberger, dan Sebaran air tanah

ABSTRACT

Water is the most necessary element for the survival of living things. An increase in water discharge during the rainy season and a reduction in discharge during the dry season are often encountered in the Durian Village depun area, Merigi District, Kepahiang Regency, Bengkulu Province. The Wenner-Schlumberger configuration geoelectric method was applied to analyze the distribution of groundwater. The results showed that in the first trajectory, the distribution of groundwater spreads to the north and south of the research path with a depth of 2-6.67 meters with a span of 40-50 meters and 2-13.4 meters in a stretch of 52 5-60 meters, the second line of groundwater distribution leads to the west of the research track with a depth of 2-9 meters with a stretch of 5-15 meters and the third line of groundwater distribution leads to the west of the research track with a depth of 2-6.67 meters with a stretch of 30-35 meters, to a depth of 2-6.76 meters at a stretch of 40-50 and a depth of 2- 6.76 meters at a stretch of 60-65 meters.

Keywords: Geoelectric method, Wenner-Schlumberger configuration, and groundwater distribution
MENINGKATKAN KETERAMPILAN PROSES SISWA DENGAN MENGGUNAKAN LKS BERBASIS INKUIRI
Authors: Hasmedi Toni , Dwandaru Wipsar Sunu Brams , Anjarsari Putri , Defianti Aprina 
Published: October 2022

ABSTRAK

Penelitian ini bertujuan untuk meningkatkan keterampilan proses siswa dengan menggunakan LKS berbasis inkuiri. Metode penelitian yang digunakan dalam penelitian ini adalah eksperimen semu dengan rancangan nonequivalent control-group pre-test post-test design. Subjek penelitian adalah siswa SMA Negeri 2 Kota Bengkulu. Data yang diperoleh dalam penelitian ini terdiri dari data hasil tes awal, data hasil tes akhir, dan data gain standar. Hasil penelitian menunjukkan: a) berdasarkan rata-rata hasil tes awal diperoleh bahwa tidak ada perbedaan keterampilan proses siswa antara kelompok perlakuan dan kelompok kontrol; b) berdasarkan rata-rata hasil tes akhir diperoleh bahwa keterampilan proses siswa kelompok perlakuan lebih besar dari pada kelompok kontrol; c) berdasarkan rata-rata gain standar diperoleh bahwa peningkatan keterampilan proses siswa kelompok perlakuan lebih besar dari pada kelompok kontrol.

Kata Kunci: Inkuiri, LKS, keterampilan proses

ABSTRACT

This study aims to increase sudents’ process skills after using the worksheets based on inquiry. The method of this study was quasy eksperriment with nonequivalent control-group pre-test post-test design. The subject of this study was students of SMA Negeri 2 Bengkulu. The data were oftained by tes awalt, post test, and gain standard. The results showed: a) based on the average tes awalt results showed that there was no difference between the students' process skills perlakuan group and the control group; b) based on the average post-test results showed that the students' process skills perlakuants groups is greater than in the control group; c) based on the average standard gain is obtained that increase students' process skills perlakuants groups is greater than in the control group.

Keywords: Inquiry, LKS, process skills
ANALISIS PERCEPATAN GRAVITASI BERBASIS VIDEO TRACKING PADA AYUNAN BANDUL
Authors: Elot Yolanita MurniatY , Angol Yovita , Alus Gaudensia , Astro Richardo Barry , Nasar Adrianus 
Published: October 2022

ABSTRAK

Penelitian ini bertujuan untuk menentukan percepatan gravitasi bumi lokal berbasis video tracking pada ayunan bandul sederhana. Penelitian ini menggunakan video pada eksperimen ayunan bandul sederhana. Video rekaman diimpor ke aplikasi Tracker untuk mendapatkan periode setiap percobaan dengan panjang tali berbeda. Data panjang tali (l) diukur secara manual dan periode (T) diperoleh melalui analisis video tracking. Data penelitian ditampilkan dalam tabel dan grafik. Analisis data menggunakan persamaan regresi linear antara kuadrat periode dan panjang tali. Besar percepatan gravitasi diperoleh melalui gradient dari persamaan linear kuadrat periode dan panjang tali. Hasil penelitian menunjukkan bahwa besar percepatan gravitasi bumi lokal melalui analisis video tracking sebesar 9,735 ms-2.

Kata kunci: Ayunan Bandul, Video Tracking, Percepatan Gravitasi.

ABSTRACT

This study aims to determine the local earth's gravitational acceleration based on video tracking on a simple pendulum swing. This study uses a video on a simple pendulum swing experiment. The recorded videos are imported into the Tracker app to get the period of each trial with a different rope length. Data on rope length (L) was measured manually and period (T) was obtained through video tracking analysis. Research data is displayed in tables and graphs. Data analysis used linear regression equation between the square of the period and the length of the rope. The magnitude of the acceleration due to gravity is obtained through the gradient of the linear equation of the period and the length of the string. The results showed that the magnitude of the local earth's gravitational acceleration through video tracking analysis was 9.735 ms-2.

Keywords: pendulum swing, video tracking, acceletiation of gravitation
PERANCANGAN DAN PENGUJIAN SENSOR LDR UNTUK KENDALI LAMPU RUMAH
Authors: Al Ghifari Faris , Anjalni Ariska , Lestari Dewi , Al Faruq Umar 
Published: October 2022

ABSTRAK

Di zaman era modern ini banyak sekali peralatan yang dijalankan secara otomatis bertujuan untuk mempermudah pekerjaan kehidupan sehari-hari, salah satunya adalah lampu rumah yang dapat dikendalikan secara otomatis menggunakan sensor LDR dengan penyesuaian intensitas lampu rumah agar lebih hemat energi dan efisien. Light Dependent Resistor (LDR) merupakan salah satu jenis sensor digunakan untuk mengukur tingkat intensitas cahaya. Penelitian ini bertujuan untuk mengendalikan lampu rumah agar dapat menyesuaikan intensitas cahayanya sendiri terhadap kondisi cahaya sekitar sehingga tidak perlu lagi menekan saklar atau menyesuaikan cahaya lampu secara manual. Metode yang digunakan dalam penelitian ini adalah metode eksperimen yaitu dengan cara memberikan cahaya tambahan pada sensor LDR dan tanpa cahaya tambahan, yang keduanya dilakukan secara berulang sebanyak 5 kali pengulangan dengan melihat nilai tegangan yang dihasilkan. Hasil penelitian ini berupa nilai rata-rata tegangan ketika sensor LDR diberikan cahaya -5,016 volt dan nilai rata-rata tegangan sensor LDR tanpa cahaya sebesar -5,01 volt.

Kata kunci : Sensor LDR, Lampu Rumah, Sistem kendali

ABSTRACT

In this modern era, there are lots of equipment that run automatically aimed at simplifying the work of daily life, one of which is home lights that can be controlled automatically using an LDR sensor with adjustment of the intensity of the house lights to make it more energy efficient and efficient. Light Dependent Resistor (LDR) is one type of sensor used to measure the level of light intensity. This study aims to control home lights so that they can adjust their own light intensity to the ambient light conditions so that there is no need to press the switch or adjust the light manually. The method used in this study is an experimental method, namely by providing additional light on the LDR sensor and without additional light, both of which are repeated 5 times by looking at the resulting voltage value. The results of this study are the average value of the voltage when the LDR sensor is exposed to light -5.016 volts and the average value of the LDR sensor voltage without light is -5.01 volts.

Keywords : Censor LDR, house lamp, control
Pengaruh Work-Life Balance, Burnout, dan Lingkungan Kerja Terhadap Kepuasan Kerja Karyawan (Studi Kasus Pada Karyawan PT Meka Eduversity Komunikasi)
Authors: Indra Fadhila Jasmin , Rialmi Zackharia 
Published: October 2022

This research is a quantitative research with the aim of knowing the effect of work-life balance, burnout, and work environment on job satisfaction of PT Meka Eduversity Communication. The total population and sample used are 34 permanent employees of PT Meka Eduversity Communication. Researchers collected data by distributing online questionnaires in the form of google forms. The data analysis technique used quantitative data analysis using statistical methods. In this study the statistical method used is Partial Least Square (PLS). From the test, the results obtained are (1) work-life balance has a positive and significant effect on employee job satisfaction at PT Meka Eduversity Communication, (2) burnout has a positive and significant effect on employee job satisfaction at PT Meka Eduversity Communication, (3) work environment has a positive and significant effect on employee satisfaction. significant effect on job satisfaction of employees of PT Meka Eduversity Communication, and (4) work-life balance, burnout, and work environment simultaneously have a positive effect on job satisfaction of employees of PT Meka Eduversity Communication
Abstrak
Penelitian ini berupa penelitian kuantitatif dengan tujuan untuk mengetahui pengaruh work-life balance, burnout, dan lingkungan kerja terhadap kepuasan kerja PT Meka Eduversity Komunikasi. Total populasi dan sampel yang digunakan yaitu 34 orang pegawai tetap PT Meka Eduversity Komunikasi. Peneliti melakukan pengumpulan data dengan cara menyebarkan kuesioner online berupa google form. Teknik analisis data menggunakan analisis data kuantitatif dengan menggunakan metode statistik. Dalam penelitian ini metode statistik yang digunakan adalah Partial Least Square (PLS). Dari pengujian, diperoleh hasil (1) work-life balance berpengaruh positif dan signifikan terhadap kepuasan kerja karyawan PT Meka Eduversity Komunikasi, (2) burnout berpengaruh positif dan signifikan terhadap kepuasan kerja karyawan PT Meka Eduversity Komunikasi, (3) lingkungan kerja berpengaruh positif dan signifikan terhadap kepuasan kerja karyawan PT Meka Eduversity Komunikasi, dan (4) work-life balance, burnout, dan lingkungan kerja secara simultan berpengaruh positif terhadap kepuasan kerja karyawan PT Meka Eduversity Komunikasi.
Kata Kunci : work-life balance, burnout, lingkungan kerja, dan kepuasan kerja
Critical Evaluation of Biocontrol Ability of Bayoud Infected Date Palm Phyllospheric Bacillus spp. Suggests That In Vitro Selection Does Not Guarantee Success in Planta
Authors: Boulahouat Sarah , Cherif-Silini Hafsa , Silini Allaoua , Chenari Bouket Ali , Luptakova Lenka , Saadaoui Nora , Alenezi Faizah N. , Belbahri Lassaad 
Published: October 2022

The vascular wilt of date palm (Phoenix dactylifera L.), also known as Bayoud and caused by Fusarium oxysporum f.sp. albedinis (FOA), is the most destructive disease in North Africa. The disease has resulted in huge economic losses due to declining crop yield and quality. The use of potential biocontrol agents is a sustainable and environmentally friendly strategy compared to synthetic fungicides. The use of date palm-associated microflora for the screening of native antagonistic bacteria with potential applications is the most promising way to control this disease. Thus, the epidemic palm groves (in the valley of M’zab-Ghardaia-Algeria) were chosen for the isolation of rhizospheric bacteria and endophytes from the soil and roots of healthy or infected plants. A total of 8 bacterial isolates (83, 84, 300, 333, 322, 260, 249, and 227) selected from 75 FOA-active strains, showed strong activity against several strains of FOA and other major plant pathogens. Their phylogenetic identification proved they belong to the genus Bacillus (Bacillus sp., B. subtilis, B. atrophaeus, B. halotolerans, B. amyloliquefasiens, and B. paralicheformis). Bacterial cultures and a cell-free culture supernatant tested alone or in co-culture showed FOA inhibitory activity. However, the effect of the co-culture did not show any synergy in both cases. Unlike diffusible compounds, volatile organic compounds did not show a significant antifungal ability. The concept of selecting biocontrol agents in vitro does not always guarantee in vivo performance. In addition to antibiosis, other strategies such as competition and resistance induction are required for biocontrol agent efficacy. To evaluate the biocontrol effect in vivo, germinated seeds of date palm were treated with bacteria, infected with the pathogen, and then incubated for 45 days at room temperature in the dark. The majority of the strains (84, 300, and 333) tested showed moderate fungistatic effects and the protection rate reached an average of 60%. In particular, promising results were obtained with B. paralicheniformis strain 260 which significantly protected palm seeds up to 85%, compared to its in vitro test where a low inhibition rate (27.77%) was recorded. Screening methods should be equipped with multifactorial or plant-mediated control mechanisms. Furthermore, these bacteria have shown other potentialities to improve plant growth and resist stressful conditions. Thus, an effective biocontrol agent must combine several beneficial characteristics to be used successfully in situ. In this respect, Bacillus remains the best candidate for biological control.
Genomic Features of Pseudomonas putida PCL1760: A Biocontrol Agent Acting via Competition for Nutrient and Niche
Authors: Afordoanyi Daniel Mawuena , Diabankana Roderic Gilles Claret , Miftakhov Aynur Kamilevich , Kuchaev Evgenii Sergeyevich , Validov Shamil Zavdatovich 
Published: October 2022

Pseudomonasputida strain PCL1760 is a biocontrol agent protecting plants from pathogens via the mechanism of competition for nutrients and niches (CNN). To confirm this mechanism as well as to adapt the strain for biotechnological applications, full genome analysis was compared with the known biotechnological model, P. putida S12, and other related species, which were analyzed on different genomic databases. Moreover, the antibacterial activity of PCL1760 was tested against Staphylococcus aureus, Pseudomonas aeruginosa, and Pseudomonas syringae. No genetic systems involved in antibiosis were revealed among the secondary metabolite clusters of the strain of PCL1760. The only antagonistic effect was observed against P. syringae, which might be because of siderophore (yellow-greenish fluorescence), although less than 19% pyoverdin biosynthesis clusters were predicted using the AntiSMASH server. P. putida PCL1760 in comparison with the Pseudomonas simiae strain PCL1751, another biocontrol agent acting solely via CNN, which lost its ‘luxury’ genes necessary for antibiosis or parasitism/predation mechanisms, but carries genetic systems providing motility. Interestingly, immunity genes (CRISPR/Cas and prophages) showed PCL1760 to be robust in comparison with S12, while annotation on OrthoVenn2 showed PCL1760 to be amenable for genetic manipulations. It is tempting to state that rhizobacteria using the mechanism of CNN are distinguishable from biocontrol agents acting via antibiosis or parasitism/predation at the genomic level. This confirms the CNN of PCL1760 as the sole mechanism for biocontrol and we suggest the strain as a new model for genetic engineering.
Resolution of an Isolated Case of a Quadratic Hypergeometric 2F1 Transformation
Authors: Atia Mohamed Jalel 
Published: October 2022

The identity 2F1(α,β;2α;z)=(1−z2)−β2F1(β2,β+12;α+12;(z2−z)2) given, either by I.S. Gradshteyn and I.M. Ryzhik in Table of integrals series and products named 9.134 or in the handbook “mathematical functions with formulas, graphs and mathematical tables” done by Abramowitz-Stegun named 15.3.20 or in the book “special functions” done by G. Andrews, R. Askey and R. Roy named 3.1.7 page 127 with a slight modification is true provided that {2α+1, α+32} are not natural numbers and α−β is not an integer (see Gradshteyn, Ryzhik, 9.130). In this manuscript we consider a case where α−β is an integer by taking β=2a, α=−n+1. We give and prove the right identity for any positive integer a and for any any positive integer n.
Toward In Vivo MRI of the Tissue Proton Exchange Rate in Humans
Authors: Shaghaghi Mehran , Cai Kejia 
Published: October 2022

Quantification of proton exchange rate (kex) is a challenge in MR studies. Current techniques either have low resolutions or are dependent on the estimation of parameters that are not measurable. The Omega plot method, on the other hand, provides a direct way for determining kex independent of the agent concentration. However, it cannot be used for in vivo studies without some modification due to the contributions from the water signal. In vivo tissue proton exchange rate (kex) MRI, based on the direct saturation (DS) removed Omega plot, quantifies the weighted average of kex of the endogenous tissue metabolites. This technique has been successfully employed for imaging the variation in the kex of ex vivo phantoms, as well as in vivo human brains in healthy subjects, and stroke or multiple sclerosis (MS) patients. In this paper, we present a brief review of the methods used for kex imaging with a focus on the development of in vivo kex MRI technique based on the DS-removed Omega plot. We then review the recent clinical studies utilizing this technique for better characterizing brain lesions. We also outline technical challenges for the presented technique and discuss its prospects for detecting tissue microenvironmental changes under oxidative stress.
Antibacterial Effects of Curcumin Nanocrystals against Porphyromonas gingivalis Isolated from Patients with Implant Failure
Authors: Maleki Dizaj Solmaz , Shokrgozar Hojjat , Yazdani Javad , Memar Mohammad Yousef , Sharifi Simin , Ghavimi Mohammad Ali 
Published: October 2022

Background. Despite their benefits, dental implants may sometimes fail for a diversity of causes; the most common reasons of failure are infection and bone loss. Porphyromonas gingivalis (P. gingivalis) bacteria show a major role in peri-implantitis infection and dental implant failure. Methods. In this study, the prevalence of P. gingivalis isolated from the gingival crevicular fluid (GCF) of fifteen Iranian patients with implant failure (more than 1/3 of the implant length), who had average oral and dental hygiene and no antibiotic use for at least one month, was determined. Moreover, the antimicrobial effects of curcumin nanocrystals against isolated P. gingivalis were investigated. The collected samples from patients were transferred to a microbiology laboratory to culture. The presence of P. gingivalis in the culture media was confirmed using a trypsin reagent test. An isolate from a patient with the highest colony count was selected to evaluate the antibacterial effects of curcumin nanoparticles. The inhibition zone diameter, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) were determined. Results. Out of fifteen patients, eight (53.33%) were positive for the presence of P. gingivalis. The results of the microbial tests showed that curcumin nanoparticles had an MIC of 6.25 µg/mL and an MBC of 12.5 µg/mL. Conclusions. The use of curcumin nanoparticles may control the bacterial infection around the implant.
The Applicability of Biogeography-Based Optimization and Earthworm Optimization Algorithm Hybridized with ANFIS as Reliable Solutions in Estimation of Cooling Load in Buildings
Authors: Moayedi Hossein , Le Van Bao 
Published: October 2022

The foundation of energy-efficient architectural design is modeling heating and cooling loads (HLs and CLs), which defines the heating and cooling apparatus constraints necessary to maintain a suitable interior air environment. It is possible that analytical models for energy-efficient buildings might offer an accurate evaluation of the influence that various building designs would have. The implementation of these instruments, however, might be a process that requires a significant amount of manual labor, a significant amount of time, and is reliant on user experiences. In light of this, the authors of this paper present two unique methods for estimating the CL of residential structures in the form of complex mathematical concepts. These methodologies include an evolutionary web algorithm (EWA), biogeography-based optimization (BBO), and a hybridization of an adaptive neuro-fuzzy interface system (ANFIS), namely BBO-ANFIS and EWA-ANFIS. The findings initiated from each of the suggested models are evaluated with the help of various performance metrics. Moreover, it is possible to determine which model is the most effective by comparing their coefficient of determination (R2 ) and its root mean square error (RMSE) to each other. In mapping non-linear connections between input and output variables, the observed findings showed that the models used have a great capability. In addition, the results showed that BBO-ANFIS was the superior forecasting model out of the two provided models, with the lowest value of RMSE and the greatest value of R2 (RMSE = 0.10731 and 0.11282 and R2 = 0.97776 and 0.97552 for training and testing phases, respectively). The EWA-ANFIS also demonstrated RMSE and R2 values of 0.18682 and 0.17681 and 0.93096 and 0.93874 for the training and testing phases, respectively. Finally, this study has proven that ANN is a powerful tool and will be useful for predicting the CL in residential buildings.