bluuebunny/crossref_metadata_2025 huggingface dataset:
The Inhibition of Cyanobacteria Spirulina Extract on S. Mutans Biofilm as an Ingredient in Mouthwash
Authors: Henu Sumekar  , Linda Rochyani  , Istien Wardani
Published: September 2024

Background: The main cause of dental caries is Streptococcus mutans (S. mutans), to suppress the growth of cariogenic bacteria can be done by using mouthwash containing antibacterial ingredients such as chlorhexidine. Cyanobacteria spirulina extract contains compounds that have secondary metabolites which act as antibacterial and antioxidant including tannins, flavonoids, saponins and terpenoids. Objective: This study aimed to find out he inhibition of Cyanobacteria spirulina against S. mutans biofilm. Materials and Methods: The research sample consisted of 6 groups. Group K(-) was the S. mutans biofilm with aquadest, K(+) was Chlorhexidine 0.2% and four treatment groups (P1, P2, P3, P4), which were Cyanobacteria spirulina extract with a concentration of 60 , 70, 80 and 90 mg/ml. The sample was applied to a well microtiter plate, then incubated overnight at 37°C for 1 x 24 hours, then painted with 0.1% crystal violet. After that, it was rinsed with sterile distilled water, then given 0.2 mL of Tween 80 concentration of 2% and measured Optical Density with an ELISA Reader with a wavelength of 570 nm, then biofilm inhibition percentage as calculated. Results: The mean value of the percentage of S. mutans biofilm inhibition in group K(+): -131,694(SD 10,758) ; P1: -12,234(SD 2,402) ; P2: 11,076(SD 6,387) ; P3: 19.7020(SD 11,670) ; P4: 40,214(12,057) there were significant differences between P2 and P4 also between P3 and P4. Conclusion: Cyanobacteria spirulina at concentrations of 70, 80 and 90 mg/ml had S. mutans biofilm inhibition, while Chlorhexidine 0.2% and Cyanobacteria spirulina 60 mg/ml did not.
Optimization of Process Loading Clinker to MV. Star Royal by PT. Varia Usaha Bahari at Maspion Port Gresik
Authors: Wibisono Muhammad Gunawan , Sudirman Sudirman , Purwiyanto Didik
Published: September 2024

The main focus of this research is to find out the process of loading clinker onto the MV. Star Royal that the activity is running optimally. The factors include in this research loading and unloading equipment, facilities and infrastructure, human resources, weather conditions. This research will identify each of these factors and analyze their impact on the overall clinker loading process. The research method used in the study is a qualitative method involving direct observation in the field, interviews with relevant parties at PT Varia Usaha Bahari, and analysis of data related to the clinker loading process. With a comprehensive approach, this research aims to provide concrete and implementable recommendations to improve the optimization of the clinker loading process at Maspion Gresik Port. The results of this research are expected to make a positive contribution in improving the performance of PT Varia Usaha Bahari in carrying out clinker loading activities on other vessels. With a deeper understanding of the factors that influence the clinker loading process, it is expected that the company can implement a more optimized strategy in the clinker loading process to better achieve their goals in the future.
Evaluation of the Effectiveness of Ship Guiding Services at Tanjung Perak Port Surabaya
Authors: Amir Husnul , Sudirman Sudirman , Saputra Toto Dwijaya
Published: September 2024

The efficiency and effectiveness of vessel piloting services at ports play a crucial role in ensuring smooth maritime operations and enhancing maritime safety. This study aims to evaluate the effectiveness of vessel piloting services at Tanjung Perak Port, Surabaya, Indonesia. The evaluation encompasses various aspects of piloting services, including navigational guidance, maneuver assistance, and response to emergency situations. By employing qualitative methodologies, data will be collected from stakeholders, including port authorities, vessel operators, and piloting personnel. Key performance indicators such as response time, safety record, and customer satisfaction will be analyzed to assess the current state of piloting services. Additionally, potential areas for improvement will be identified to enhance the efficiency and effectiveness of vessel piloting services at Tanjung Perak Port. The findings of this study are expected to provide valuable insights for port authorities and stakeholders to optimize piloting services and ensure safe and efficient maritime operations at Tanjung Perak Port, Surabaya.
Analysis of the Causes of the Decline in Water Production Bid on Fresh Water Generator in Ship MV. Lumoso Karunia II
Authors: Syahputra Ferdyan Alam , Daryanto Daryanto , Saktiono Maxima Ari
Published: September 2024

This study aims to analyze the causes of the decline in fresh water production on the Fresh Water Generator on the MV. Lumoso Karunia II. Researchers conducted this research for 12 months and 5 days conducted on the MV. Lumoso Karunia II which is a type of Bulk Carrier ship which is a ship owned by PT Lumoso Pratama Line Company. This research method uses quantitative methods. Researchers use secondary data in the form of library books, journals and documents related to this research, while primary data in this study is in the form of direct field studies. Data collection techniques in this study are library research, direct and indirect observation and interviews. The results of this study indicate that the performance of the fresh water generator auxiliary aircraft is less than optimal so that what is produced does not match the amount of capacity due to lack of maximum maintenance. With the thickness of scale attached to the evaporator pipe of 1.85 mm, it causes blockage of the evaporator pipe. Thus, there is a decrease in intake in the evaporator. So, the decrease in intake in the evaporator resulted in a decrease in fresh water production of 16 m3 tons in the fresh water generator. As a result of the decrease in fresh water production in the fresh water generator at MV. Lumoso Karunia II is a shortage of fresh water in accommodation and disruption of the cooling process in machinery.
Optimization of Prevention of Hazards MV. Meratus Kariangau Ship Running Across Entering the Narrow Waterflow of the Barito River
Authors: Ramadhannur Muhammad Rivaldi , Mudiyanto Mudiyanto , Wiyono Teguh
Published: September 2024

This research aims to Optimize the Prevention of the Occurrence of Shipwreck Hazard of MV Meratus Kariangau when Entering the Narrow Shipping Channel of the Barito River. This research method uses a qualitative method with a descriptive approach. For primary data collection techniques obtained from the results of interviews and observations, while for secondary data collection techniques obtained from tidal data in the Barito river, then from journals related to this research, books and others. The results of this study indicate are a). Indication of overdraft when entering the narrow shipping channel, b). Lack of attention to UKC and Tidal Tables, c). Human error from the watch officer who did not pay attention to the tide list. Preparations that must be made by the MV. Meratus Kariangau before entering the narrow shipping channel of the Barito river to avoid the danger of running aground are a) The duty officer and the skipper must operate the navigation equipment on the ship, for example Radar, Echo sounder, GPS. b) The duty officer prepares a map of the narrow shipping channel to be passed. c) The duty officer asks the Engine Control Room (ECR) to ensure that the engine is ready to pass through the narrow shipping channel d) The duty officer calculates the UKC and Squat on the shipping channel to be passed e) The crew conducts a grounding drill to know their duties and responsibilities when running aground f) The skipper and duty officer apply P2TL rule 9 on Narrow channel.
Implementation of the Green Port Concept in PT. Terminal Petikemas Surabaya
Authors: Dirmansyah Denny , Setiono Benny Agus , Nasihah Ainun
Published: September 2024

This research aims to implement the Green Port concept at PT Terminal Petikemas Surabaya. This research method uses descriptive qualitative methods including interviews, notes, field notes, pictures, and video recordings. The data collection technique used direct observation of the green port process at PT Terminal Petikemas Surabaya, interviews with operational staff, engineers, and field workers at PT Terminal Petikemas Surabaya, and documentation. The results of this study are a). The implementation of the green port concept at PT Terminal Peti Kemas Surabaya succeeded in improving environmental quality and operational efficiency, reducing carbon emissions and costs. These efforts reflect TPS commitment to sustainability, creating a competitive green port, and providing long-term benefits to the environment, economy and surrounding communities. b). Efforts to support the green port concept and improve sustainability include the use of renewable energy, energy use optimization, waste management, environmentally friendly transportation, education and training, and regular environmental monitoring. These efforts demonstrate the terminal's commitment to reducing environmental impacts and improving operational efficiency. c). The implementation of the green port concept at Surabaya Container Terminal has reduced emissions and carbon footprint, increased energy efficiency, managed waste well, and improved air and water quality. Equipment modernization and operational automation have also increased productivity and reduced waiting time. These positive impacts not only support environmental and operational sustainability, but also enhance the port's reputation and the quality of life of the surrounding community.
Analysis of Truck Round Time Service Time in Import Delivery Activities at PT. Terminal Petikemas Surabaya
Authors: Andriani Mita , Setiono Benny Agus , Nasihah Ainun
Published: September 2024

This research aims to identify the main determinants that cause truck round time (TRT) service times to exceed standards and analyze their impact on operational efficiency at PT Terminal Petikemas Surabaya. Qualitative research methods with a triangulation approach were used to collect and analyze data. The research results show that the average annual TRT exceeds the standard of 30 minutes: 42.03 minutes (2021), 41.66 minutes (2022), and 41.38 minutes (2023). Key factors include crowding in the stacking yard, equipment problems, human resource skills and discipline, and adverse weather conditions. The impacts of high TRT include disruption of loading and unloading activities, increased operational costs, and decreased customer loyalty, which threatens the performance and sustainability of a company's business relationships.
Shipping Safety Innovation: The Role of Big Data and IoT in Reducing Risk
Authors: Mursidi Mursidi , Sarjito Aris
Published: September 2024

Shipping safety is a crucial aspect in the maritime industry which faces various risks of accidents. This research aims to examine the innovative role of Big Data and the Internet of Things (IoT) in improving shipping safety through accident prediction and prevention. The research method used is qualitative using secondary data from industry reports, journal articles and related publications. The research results show that Big Data can improve the ability to predict and prevent shipping accidents by analyzing weather data, ship movements and sea conditions to produce accurate predictive models. In addition, IoT makes a specific contribution in real-time monitoring and risk mitigation through sensors and AIS systems that provide real-time data for fast and informed decision making. However, the integration of Big Data and IoT faces major challenges such as cybersecurity, implementation costs, and the need for adequate infrastructure. Nevertheless, the prospects for developing this technology are very promising with increased security protocols, reduced costs through innovation, and development of maritime telecommunications infrastructure. In conclusion, Big Data and IoT have great potential to improve shipping safety, but require attention to existing challenges to realize their full benefits.
Green Synthesis of CuO Nanoparticles Mediated Rhazya Stricta Plant Leaves Extract Characterization and Evaluation of their Antibacterial and Anticancer Activity (in vitro Study)
Authors: Muslim Abeer M. , Naji Iqbal S.
Published: September 2024

In this study, a straightforward, expeditious, and environmentally friendly approach to synthesize copper oxide nanoparticles (CuONPs) utilizing an aqueous extract of Rhazya Stricta (R. stricta) leaves was employed. The CuONPs underwent various analytical techniques for characterization, including X-ray diffractometer (XRD), field emission scan electron microscope (FESEM), energy dispersive X-ray (EDX) analyses, UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), and zeta potential. The XRD analysis authenticated the monoclinic crystal nature, revealing an average crystallite size of 15.6 nm. FESEM images depicted semi-spherical and cubic shapes, with particle sizes ranging from 56.64 to 86.95 nm. The formation of CuONPs was initially confirmed by the observable change in colour, attributed to the excitation of surface Plasmon resonance at 280 nm in the UV-Vis spectra. FTIR analysis affirmed the presence of functional groups in the R. Stricta leaves extract, serving as both reducing and stabilizing agents, facilitating the formation of CuONPs. Zeta potential measurements indicated substantial stability with a value of 46.6 mV. The biosynthesized CuONPs were further evaluated for their antibacterial properties against Klebsiella Pneumoniae (K. pneumoniae) and Staphylococcus aureus (S. aureus), yielding inhibition zones of 21 mm and 30 mm, respectively. Additionally, the cytotoxicity assessment of CuONPs against A549 cell lines revealed higher cytotoxicity of 81.47 ± 1.517 at a CuONP concentration of 100 μg/ml. This work is the first attempt at R. stricta-facilitated synthesis of CuONPs as antibacterial and anticancer agents. It can subsequently be exploited as a potential candidate for these agents and might be utilized further in vivo studies.
Improving Radio Signal from Baghdad University Radio Telescope Using the Savitzky-Golay Filter
Authors: Hussein Zahraa A. , Mahdi Hareth S.
Published: September 2024

Astronomical radio observations from a small radio telescope suffer from various types of noise. Hence, astronomers continuously search for new techniques to eliminate or reduce such noise and obtain more accurate results. This research investigates the impact of implementing the Savitzky-Golay filter on enhancing radio observation signals retrieved from the Baghdad University Radio Telescope (BURT). Observations from BURT were carried out for different Galactic coordinates, and then a MATLAB code was written and used to implement the Savitzky-Golay filter for the collected data. This process provides an assessment of the ability of the filter to reduce noise and improve the quality of the signal. The results of this research clearly showed that applying the Savitzky-Golay filter reduces the noise and enhances the signal of astronomical radio observations. However, the filter should be used appropriately to preserve the original features of the signal. In conclusion, the filter is considered an efficient tool for enhancing the radio signal by reducing the noise and smoothing the signal. Therefore, the filter provides a substantial contribution and improvement to the field of radio astronomy.
Religious Moderation Based on Local Wisdom
Authors: Puji Laksono
Published: September 2024

Religious moderation is a perspective, behavior and attitude that always chooses a position in the middle, is always based on justice, and does not take an extreme position in religious practice. four indicators of religious moderation, namely tolerance, national commitment, non-violence, and acceptance of tradition. In the final indicator, namely acceptance of tradition can be the key to building a paradigm and attitude of religious moderation with a local cultural approach. Religious moderation based on local wisdom is interesting to study. For this reason, researchers analyzed a novel entitled "Hati Suhita" written by Khilma Anis, which carries the collaboration of Javanese and Islamic culture. This research uses a qualitative type of literature study with a semiotic approach. The semiotic analysis knife in this research uses Roland Barthes' semiotics. The results of this research concluded that; (1). There are myths about religious moderation based on local wisdom. These myths include; a). Pre-Islamic culture can still be practiced with adjustments to Islamic teachings. b). Wisdom advice from local traditions can be used as guidance for life while remaining guided by Allah SWT. c). The holy and wise figures in wayang stories can be used as role models, with daily practices according to Islamic teachings. d). A Muslim's name does not have to be Arabic only, but can be paired with a local name that has a good meaning. Then (2). There is an attitude of religious moderation based on local wisdom which is demonstrated by existing myths, namely the value of tawassuth, namely taking the middle path, and tawazun, namely balance between the intersection of Javanese and Islamic culture. This is in accordance with the concept of religious moderation as a perspective, behavior and attitude that always chooses a position in the middle, is always based on justice, and does not take an extreme position in religious practice.
COVİD-19 PANDEMİ DÖNEMİ SÜRECİNDE BİREYLERİN BİLİŞSEL ESNEKLİK DÜZEYİ İLE BELİRSİZLİĞE TAHAMMÜLSÜZLÜK İLİŞKİSİNDE ALGILANAN SOSYAL DESTEK DÜZEYİNİN BİÇİMLENDİRİCİ ROLÜNÜN GELİŞİMSEL EĞRİDE İNCELENMESİ
Authors: Özden Eda , Ermiş Ece Naz
Published: September 2024

Tüm dünya ile ülkemizi de derinden etkileyen Covid-19 pandemisi, son yılların en önemli küresel krizlerinden biri olmuştur. Bu krizle beraber bireylerin yaşamlarında da büyük değişimler meydana gelmiştir. Bu çalışmanın amacı, Covid-19 pandemi döneminde bireylerin bilişsel esneklik düzeyi ile belirsizliğe tahammülsüzlük ilişkisinde algılanan sosyal destek düzeyinin biçimlendirici rolünün gelişimsel eğride incelenmesidir. Çalışmaya 18-65 yaş aralığında bulunan 300 birey katılmıştır. Araştırmanın bulgularına göre, bireylerin bilişsel esneklik düzeyi ile belirsizliğe tahammülsüzlük düzeyi arasında negatif yönlü anlamlı bir ilişki olduğu tespit edilmiştir. Bilişsel esneklik düzeyi arttıkça, belirsizliğe tahammülsüzlük azalmaktadır. Araştırmada cinsiyet, yaş, medeni durum, gelir düzeyi değişkenlerinin belirsizliğe tahammülsüzlük düzeyine göre anlamlı bir farklılık yaratmadığı gözlenmiştir. Çalışmada eğitim durumu lise ve altı olan katılımcıların belirsizliğe tahammülsüzlük düzeylerinin eğitim durumu lisans ve lisansüstü olan katılımcılara göre anlamlı düzeyde yüksek olduğu görülmektedir. Katılımcıların yaşanılan şehir değişkeni ile belirsizliğe tahammülsüzlük düzeyi arasında anlamlı bir farklılık oluşturduğu gözlenmiştir. Sivas ve Adana’da yaşayan katılımcıların belirsizliğe tahammülsüzlük düzeyi İstanbul şehrinde yaşayan katılımcılara göre anlamlı düzeyde yüksek olduğu görülmektedir. Bilişsel esneklik düzeyi ile belirsizliğe tahammülsüzlük düzeyi arasındaki ilişkide algılanan sosyal desteğin düzenleyici bir etkisinin bulunmadığı görülmektedir. Elde edilen sonuçlar doğrultusunda pandeminin yarattığı belirsizlik, kaygı ve olumsuzlukların ruh sağlığı üzerindeki etkilerinin azaltılması konusunda koruyucu ruh sağlığı çalışmaları ve yeni müdahale programları geliştirilmesi bireyler üzerindeki sorunlarının azaltmasına yardımcı olabileceği düşünülmektedir. Bu sayede bireyin yaşamında meydana gelen değişimlerin ve sıkıntıların karşısında tahammülünü ve dayanıklılığını artırabilir.
The influence of salinity on the soil’s dielectric characteristic
Authors:   Omsk Scientific Center SB RAS (Institute of Radiophysics and Physical Electronics) 644024, Russia, Omsk, pr. Karla Marksa, 15, Varnakov S.A. ,   Omsk Scientific Research Institute of Instrument 644071, Russia, Omsk, Maslennikova str., 231, Yashchenko A.S. ,   Omsk Scientific Center SB RAS (Institute of Radiophysics and Physical Electronics) 644024, Russia, Omsk, pr. Karla Marksa, 15, Krivaltsevich S.V. ,   Omsk Scientific Center SB RAS (Institute of Radiophysics and Physical Electronics) 644024, Russia, Omsk, pr. Karla Marksa, 15,   Omsk Scientific Research Institute of Instrument 644071, Russia, Omsk, Maslennikova str., 231, Nikiforova A.O. ,   Omsk Scientific Center SB RAS (Institute of Radiophysics and Physical Electronics) 644024, Russia, Omsk, pr. Karla Marksa, 15
Published: September 2024

A comparative analysis of the soil's dielectric spectra with differ salt content was carried out. Laboratory measurements of dielectric constant were carried out for soil samples selected in the basin of Lake Ebeity and the southwestern part of the Omsk region. A general description of the dielectric spectra and radiophysical characteristics associated with them is given. These dependencies can be used in assessing the radiophysical characteristics of the underlying surface when solving applied problems of radiation and propagation of radio waves.
ISOTOPIC AND GEOCHEMICAL ZONALITY OF THE PALEOCENE MAGMATISM IN THE ASIA-PACIFIC TRANSITION ZONE
Authors:   Far East Geological Institute, Far eastern branch, Russian academy of sciences, Grebennikov A.V. , Kasatkin S.A. ,   Far East Geological Institute, Far eastern branch, Russian academy of sciences, Khanchuk A.I. ,   Far East Geological Institute, Far eastern branch, Russian academy of sciences
Published: September 2024

The diversity of the tholeiitic, alkali or calc-alkali, high-silica, and adakitic rocks (I-, FG- and А-types) in the northeastern margin of Asia often leads to controversial conclusions about the character of magmatism and the active margin evolution in the West Pacific during the Late Mesozoic–Cenozoic. In addition, paleogeodynamic reconstructions of the Asia-Pacific region can only be made based on the synthesis of patterns identified in compositions of magma sources, evolution and character of magmatism, and strain and kinematic analysis of fault tectonics of all parts of the eastern margin of the paleo-Asian continent. The paper presents new isotopic, geochemical, and structural data on one of the largest early Paleogene structures located at the continental margin of the southern Sikhote-Alin. Based on the new and previously published [49, 52] data we have concluded that the tectonic and magmatic settings of the region were shaped by oblique interaction of continental and oceanic plates during the Late Cretaceous-early Paleogene. The igneous products of the frontal (FG-type), in respect to the trench, and intracontinental (А-type) parts of the area are characterized by isotopic-geochemical variations caused by thermal changes in upwelling asthenosphere and by interaction with lithospheric components. These processes accounted for the formation of initial magmas similar to the IAB- or OIB-type mantle source, respectively.
ANALISIS FAKTOR YANG MEMPENGARUHI KINERJA GURU BAHASA INDONESIA DI SMP NEGERI KOTA TANGERANG
Authors: Sumiyani Sumiyani , Hidayat Sholeh , Hasani Aceng
Published: September 2024

Kinerja guru di sekolah mempunyai peran yang sangat penting dalam pencapaian tujuan sekolah. Kinerja guru akan dirasakan oleh siswa atau orang tua siswa. Untuk itu guru harus benar-benar kompeten dibidangnya dan guru juga harus mampu mengabdi secara optimal. Tujuan penelitian ini adalah menganalisis factor-faktor yang mempengaruhi kinerja guru Bahasa Indonesia di SMP Negeri Kota Tangerang khususnya di tiga sekolah di Kecamatan Cipondoh yaitu SMP Negeri 10 Tangerang, SMP Negeri 18 Tangerang, SMP Negeri 32 Kota Tangerang dengan sampel 19 orang guru mata pelajaran Bahasa Indonesia. Penelitian ini menggunakan pendekatan kualitatif dengan tipe studi kasus. Instrumen penelitian ini melalui observasi, angket, dan studi dokumen. Hasil penelitian menunjukkan bahwa terdapat dua factor penting yang mempengaruhi kinerja guru Bahasa Indonesia di SMP Negeri Kota Tangerang yaitu factor internal dan factor eskternal. Faktor internal yang dominan adalah factor individual dan psikologis, sedangkan factor eksternal adalah factor organisasi. Kedua factor tersebut berperan dalam pembentukan kinerja guru dan menentukan sejauh mana kemampuan dan keberhasilan guru dalam melaksanakan tugas-tugas pembelajaran yang telah dijalankan di sekolah. Kata kunci: Kinerja guru, bahasa Indonesia
PENGARUH MODEL PEMBELAJARAN SQ4R TERHADAP KETERAMPILAN MEMBACA PUISI PADA SISWA KELAS X SMK MAHAKARYA CIKUPA
Authors: Dewi Annisa Aprillia , Anggraini Nori , Ariyana Ariyana
Published: September 2024

Penelitian ini bertujuan untuk mengetahui ada atau tidaknya pengaruh terhadap pembelajaran dengan menggunakan model pembelajaran SQ4R terhadap kemampuan membaca puisi pada siswa kelas X SMK Mahakarya Cikupa. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif yang berjenis True eksperimen. Populasi dalam penelitian ini yaitu 180 siswa kelas X SMK Mahakarya Cikupa dan sampel dalam penelitian ini yaitu 60 siswa. Teknik pengambilan sampel mengunakan teknik claster random sampling kepada 60 siswa yang diambil pada kelas X AP 1 kelas kontrol dan kelas X TKJ 2 kelas eksperimen. Intrumen yang digunakan oleh peneliti adalah tes lisan, yaitu melakukan test pretest dan posttest pada kelas kontrol dan kelas eksperimen. Hal tersebut dilakukan dengan penelitian pada uji hipotesis dengan menggunakan model the separate model T-test yaitu uji-t posttes yang menujukan thitung 3,80 ≥ ttabel 2,00. Hasil uji-t posttest menunjukan adanya pengaruh terhadap kemampuan membaca puisi dengan penggunaan model pembelajaran SQ4R dengan peserta didik yang hanya menggunakan model pembelajaran konverensional. Kata Kunci: model pembelajaran, puisi, SQ4R
PENGARUH MEDIA APLIKASI SPEAKY.COM DALAM KETERAMPILAN MEMPERKENALKAN DIRI PADA MAHASISWA UNIVERSITAS BINA SARANA INFORMATIKA
Authors: Buansari Istihayyu , Pangestu Maulani , Riady Yasir
Published: September 2024

Penelitian ini bertujuan untuk menganalisis penerapan penggunaan aplikasi Speaky.Com pada penilaian memperkenalkan diri mahasiswa Bina Sarana Informatika. Pendekatan yang digunakan oleh peneliti pada penelitian ini yaitu kuantitatif. Teknik analisis data yang digunakan pada penelitian ini yakni menggunakan bantuan software SPSS Versi 26 yaitu untuk menghitung uji normalitas dan hipotesis penelitian (Uji T). Variabel dalam peelitian ini yaitu terdiri dari dua jenis yaitu variabel bebas dan variabel terikat. Variabel bebas (X) pada penelitian ini yaitu aplikasi speaky.com dan variabel terikat (Y) pada penelitian ini yaitu pembelajaran bahasa Inggris pada materi memperkenalkan diri. Populasi pada penelitian ini yaitu mahasiswa semester 2 mata kuliah dasar umum bahasa Inggris sedangkan, sampel pada penelitian ini yaitu terbagi menjadi dua yaitu kelas eksperimen dan kontrol. Teknik pengumpulan data pada penelitian ini yaitu terbagi menjadi teknik tes yang digunakan untuk mengukur secara objektif untuk mendapatkan data terkait kemampuan mahasiswa dalam pembelajaran bahasa Inggris materi memperkenalkan diri menggunakan aplikasi speaky. Berdasarkan hasil eksperimen yang telah dilakukan dengan menggunakan aplikasi speaky nilai mahasiswa terkait materi memperkenalkan diri mengalami peningkatan yang cukup signifikan dari nilai kelas kontrol serta melebihi standar nilai cukup. Hal itu dikarenakan dengan menggunakan aplikasi speaky mahasiswa dapat mempraktikan secara langsung dengan seseorang yang menggunakan bahasa inggris sebagai penutur asli yang berasal dari berbagai belahan dunia. Kata Kunci: keterampilan memperkenalkan diri, speakly.com, mahasiswa
ANALYSIS OF MATHEMATICAL LITERACY SKILLS OF STUDENTS IN CLASS VIII SMP NEGERI 3 DAMPELAS IN SOLVING GEOMETRY PROBLEMS IN TERMS OF VAN HIELE LEVEL.
Authors: Rahmayani Risti , Sukayasa Sukayasa , Ismaimuza Dasa , Meinarni Welli
Published: September 2024

This research is a descriptive qualitative research that aims to analyze the mathematical literacy skills of SMP Negeri 3 Dampelas students in solving geometry problems in terms of Van Hiele levels. Subjects were selected based on the Van Hiele Geometry Test (VHGT) results by considering the subject teacher's suggestions. Data were collected using tests. The test instrument was prepared based on indicators of mathematical literacy skills and has met the valid criteria. The results of this study show that Van Hiele level 0 thinking subjects can only fulfill 2 indicators of mathematical literacy skills, the subject is able to write the known and asked and can change the problem in the problem. Van Hiele level 1 thinking subjects were able to fulfill 3 indicators of mathematical literacy skills, the subject was able to write down what was known and asked and could relate to the concept of beam area with information from known data to produce a plan to solve the problem using the formula correctly. The level 2 Van Hiele thinking subject was able to fulfill 4 indicators of mathematical literacy skills, the subject was able to write the known and questioned, write the formula to be used correctly, was able to connect with the concept of beam area then apply his knowledge of surface area and provide an explanation of the steps to solve the problem.
ANALYSIS OF MATHEMATICAL PROBLEM SOLVING SKILLS ON THE RELATIONSHIP AND FUNCTION MATERIAL OF GRADE VIII STUDENTS OF SMPN 6 PALU
Authors: Rahim Nur Mei Sakin , Nurhayadi Nurhayadi , Rizal Muh , Idris Mustamin
Published: September 2024

This research aims to describe the mathematical problem solving abilities in relation and function material for class VIII students at SMP Negeri 6 Palu. This type of research is qualitative research. The research subjects were three students from 32 class VIII F students. Students were grouped into three categories, namely high ability students, medium ability students and low ability students. Each category is represented by one student. The results of this research are (1) Subjects with high abilities can understand problems, plan solutions, solve problems but the subjects do not carry out re-examination. (2) Subjects with moderate abilities can understand the problem, are still lacking in planning solutions, cannot solve the problem and the subject cannot carry out re-examination. (3) Subjects with low abilities cannot fulfill all the problem solving indicators used in the research.
UTILIZAÇÃO DAS PRÁTICAS INTEGRATIVAS E COMPLEMENTARES NO CICLO GRAVÍDICO NO ÂMBITO DA ATENÇÃO PRIMÁRIA: REVISÃO INTEGRATIVA
Authors: Costa Lucas Manoel Oliveira , Silva Silmara Alves Oliveira , Feitosa Gaubeline Teixeira , Viana Izabel Luiza Rodrigues de Sousa , Rodrigues Tatyanne Silva
Published: September 2024

A gestação é compreendida como um período delineado por inúmeras modificações físicas, emocionais e hormonais, por vezes alinhadas ao abandono familiar e a solitude materna. Sabe-se também que a Atenção Primária à Saúde representa a porta de entrada dos usuários do SUS, facilitando o acesso à saúde e continuidade assistencial. Considerando os múltiplos processos que podem interferir no ciclo gravídico, as práticas integrativas complementares emergem como tecnologias inovadoras na promoção do autocuidado da gestante. O objetivo do estudo é analisar, por meio de revisão integrativa, o uso das práticas integrativas e complementares durante o ciclo gravídico na Atenção Primária à Saúde. Trata-se de uma Revisão Integrativa da literatura que utilizou a estratégia PICo por meio dos descritores controlados: gravidez, terapias complementares e atenção primária à saúde e seus termos alternativos. A busca ocorreu nas bases de dados LILACS, BDENF, IBECS, via BVS, MEDLINE via PUBMED e SciELO, no recorte temporal de 2017 a 2022. A amostra inicial foi de 2.404.698 de artigos, estratificados após a aplicação dos critérios de inclusão e exclusão, perfazendo uma amostra final de 15 artigos. As pesquisas apontam que a gestação passa por alterações capazes de afligir a saúde da pessoa gestante, bem como do concepto. Queixas como a lombalgia, insônia, distúrbios ansiosos, além da associação a comorbidades, foram identificadas entre as complicações deste ciclo. Tais ofereceram a emancipação no autocuidado, independência na tomada de decisões, inclusão familiar, modulação de biomarcadores de estresse e manejo da dor. A análise acerca dos achados na literatura evidenciam a variedade de estímulos físicos, bioquímicos e emocionais proporcionados benefício por estas práticas na gravidez, bem como elucidou-se a diversificação de suas aplicabilidades. O estudo reforça que sua utilização na Atenção Primária à Saúde proporciona maior vínculo entre gestante e profissionais e maior adesão do pré-natal.
The Qualia Structure Paradigm: towards a construction of a Qualia Periodic Table for the dissolution of the Hard Problem of Consciousness
Authors: Tsuchiya Naotsugu
Published: September 2024

The nature of the relationships between qualitative aspects of consciousness, or qualia, and their physical substrates remains unclear. The problem of qualia is one of the biggest challenges among the enigmas of consciousness. One difficulty in qualia research is characterization of qualia. Verbal descriptions and simple behavioral responses are unable to capture the richness of qualia, the dilemma faced by the traditional NCC paradigm. Comparing a quale with another quale, however, is not difficult. Such relational characterization of qualia, but now in a structural context, underlies the core of the Qualia Structure paradigm. This new paradigm was inspired by category theory, in particular, the Yoneda lemma, which states that an object in a category is characterized by its relationships to all objects in that category. Inspired by the lemma, the Qualia Structure paradigm proposes a pathway to characterize and organize the structural properties of different qualia one by one. As a result, it aspires to reach an organizing principle, akin to a Mendeleevian periodic table, for the domains of qualia and their physical substrates. Under this framework, any valid theories of consciousness should link the two domains in a structure-preserving manner. Successful refinement of such theories will lead to “natural” relationships among these different theories. This level of specification and understanding of relations between qualia and the physical would dissolve the Hard Problem of consciousness in its current form.
Recognizing Signatures Using Normalized Generalization Neural Network
Authors: Al-Sumaidaee S. A. M. , Wai Lok Woo
Published: September 2024

One of the most prevalent behavioral biometrics is the signature. In this paper, signatures are utilized in the case of recognition. Multiple contributions are provided here. Firstly, statistical analysis of efficiency is taken into consideration for the feature extraction. Secondly, a novel classifier is suggested. It is employed to recognize the signatures and it is called the Normalized Generalization Neural Network (NGNN). In terms of error rates, comparisons are established between different neural networks in the literature and the novel NGNN. The proposed NGNN consists of the input layer, normalization layer, Radial Basis Function (RBF) layer, and output layer. It can be considered as an enhanced or developed version of the Generalized Regression Neural Network (GRNN). A large number of signatures' attributes from the Biometric Ideal Test (BIT) database is utilized. That is, 1750 patterns of attributes are exploited. A significant improvement in the error rates over previous networks is achieved when using the novel NGNN. The Mean Absolute Error (MAE) has reached 0.028 and the Mean Square Error (MSE) has obtained 0.014. In addition, further experimental results on the BIT database showed better Mean Absolute Percentage Error (MAPE) and Root Mean Square Error (RMSE) of 0.002 and 0.119, respectively.
Nigella sativa seed-mediated green biosynthesis of silver nanoparticles and antimicrobial activity
Authors: BOKE EFTAL , Saygi Kadriye , ERENLER RAMAZAN , KACMAZ BIRGUL , ERGENE AYSUN
Published: September 2024

This work introduces a systematic and efficient approach for producing stable AgNPs utilizing Nigella sativa (Ns) seed aqua extract (AE), which exhibit strong antibacterial properties. The characterization of Ns-AgNPs was performed using a UV-visible spectrophotometer (UV-Vis), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electronic microscopy (SEM), and transmission electronic microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDX). The Ns-AgNPs did not show aggregation, as shown by the results of STEM and XRD. According to the EDX analysis in this research, it was determined that Ns-AgNPs, gave signals in the silver region (~3 KeV) at 92.3%. Ns-AgNPs showed significant antibacterial performance against Staphylococcus aureus, Escherichia coli and were effective at the low concentrations. Ns-AgNPs may be incorporated into wound dressings, surgical instruments, and medical devices to prevent infections and promote healing.
Study by transmition electron microscopy of Co-WC/Ni interface produced by solid state bonding
Authors: Lemus-Ruiz José , Castro-Sánchez G. , Reyes-Gasga J. , García-García R. , Marulanda-Arevalo J. L. , Ortega-Cabello L.
Published: September 2024

The microstructure of the interface and inter-diffusion behavior during bonding plays an important role to understand and to control the joining process for better mechanical properties of an interface. In this work, the microstructure of the formed interlayer between cermet WC-Co and metallic Ni after solid state bonding (the WC-Co/Ni interface) was analyzed by scanning (SEM) and transmission (TEM) electron microscopy, and characteristic energy dispersive x-ray spectroscopy (EDS). The WC-Co/Ni joint was produced at 980°C for 25 minutes in argon atmosphere. For SEM observation, the samples were mechanically polished and etched. TEM samples were produced parallel (sample P), perpendicular (sample T) and oblique (sample TP) to the interface by focused ion beam (FIB). The EDS results indicate the inter-diffusion at the interface of W, Ni, Co and C and the segregation of Ni and Co, together with the formation of crystalline phases and an amorphous carbon layer. W follows a homogeneous diffusion while Ni and Co show a non-homogeneous diffusion behavior.
Ab initio insight into the physical properties of new ferroelectric perovskite oxide materials XGeO3 (X = Sr, Ca)
Authors: Waqdim A. , Agouri M. , Ouali M. , Abbassi Abderrahman , Taj S. , Manaut B. , El Idrissi M.
Published: September 2024

The investigation of structural stability, electronic, mechanical, spontanous polarization, and thermodynamic properties of simple cubic perovskite oxides XGeO3 (X =Sr, Ca) has been performed through density functional theory as introduced in Wien2K code. The tolerence factor, Born criteria, and phonon dispersion confirm the stability and the formation of both materials in the ideal cubic structure. Additionally, the application of nmBJ approach in electronic properties shows an exceptional semiconducting aspect. The strain effect on spontaneous polarization of XGeO3 (X =Sr, Ca) perovskites presents an excellent ferroelectric behavior. The thermodynamic parameters such as volume, bulk modulus, thermal expansion coefficient, Debye temperature, Gibbs free energy, enthalpy, heat capacities, and Gruneisen, have been ¨ calculated and discussed with a wide range of pressures (0−20 GPa) and temperatures (0−1000 K). Based on the exceptional semiconducting nature and significant spontaneous polarization, the studied materials can be considered as ferroelectric materials, which make them as a suitable candidates in ferroelctric devices.
On the Geometric Trinity of Gravity, Non-Relativistic Limits, and Maxwell Gravitation
Authors: March Eleanor , Wolf William J. , Read James
Published: September 2024

We show that the dynamical common core of the recently-discovered non-relativistic geometric trinity of gravity is Maxwell gravitation. Moreover, we explain why no analogous distinct dynamical common core exists in the case of the better-known relativistic geometric trinity of gravity.
Anuncios pagados en las plataformas de Meta de los tres candidatos a la presidencia de México 2024
Authors: Signa_Lab
Published: September 2024

Signa_Lab, el Laboratorio de Innovación Tecnológica y de Estudios Interdisciplinarios Aplicados del ITESO, ha venido monitoreando la conversación digital en diversas plataformas en torno a los procesos electorales en México. En 2018 el Laboratorio colaboró con el Instituto Nacional Electoral (INE) en el registro, categorización y análisis de las preguntas ciudadanas para el tercer debate presidencial. En 2021 publicó una serie de informes en el marco de las elecciones 2021 con apoyo del Fondo de Apoyo a la Observación Electoral (FAOE) del Instituto Interamericano de Derechos Humanos (CAPEL-IIDH). En 2024 Signa_Lab participó en el proceso de selección de las preguntas para el primer debate presidencial por encargo del INE.
Para esta edición de Análisis Plural generamos 11 visualizaciones que muestran algunos de los anuncios pagados en las páginas oficiales de Facebook e Instagram de los tres candidatos a la presidencia de México. Los datos se obtuvieron a través de Meta Ad Library, la biblioteca de anuncios de Meta, que permite la descarga de anuncios sobre temas sociales, elecciones o política, para observar el gasto total general de cada publicación y otros detalles respecto al gasto por anunciante. Las visualizaciones fueron elaboradas con datos obtenidos del 11 de noviembre de 2023 al 29 de mayo de 2024.
Equipo de Signa_Lab a cargo de esta colaboración:
Paloma López-Portillo VázquezEduardo G. de Quevedo Sánchez
Tendencias recientes en el manejo del dolor en pacientes con endometriosis
Authors: Cambronero Pérez Laura Vanessa , Barboza Picado Allan Vinicio , Chapagain Masís Kilarny
Published: September 2024

Este estudio comprende una revisión integrativa sobre el manejo del dolor en pacientes con endometriosis. Se analizaron 20 estudios recientes mediante un enfoque descriptivo. Se indica que la endometriosis es un problema asociado a la salud reproductiva de la mujer, el cual genera dolor por mecanismos inflamatorios, nocioceptivos o neuropáticos asociados a las estructuras uterinas. El manejo del dolor se suele hacer por las vías farmacológica, alternativas y quirúrgicas. Los AINE, medicamentos hormonales, opioides y agonistas o antagonistas de GnRH se recomiendan en el manejo farmacológico. En el plan quirúrgico se plantean la laparoscopia y la histerectomía como principales formas de tratamiento. Las terapias complementarias, como la fisioterapia del suelo pélvico, la acupuntura y la terapia cognitivo-conductual también se han mostrado prometedoras para controlar el complejo dolor asociado con la endometriosis. Se describen avances de estudios recientes como el manejo con fármacos derivados del cannabis o el dicloroacetato (DCA), los cuales se encuentran en proceso de ensayos clínicos.
Muslims in the Post-War Sri Lanka: Repression, Resistance and Reform, Colombo: Alliance for Minorities
Authors: Mohamed Fouz Mohamed Zacky
Published: September 2024

Shereen Abdul Saroor’s edited work titled Muslims in the Post-war Sri Lanka: Repression, Resistance and Reform is a welcome addition to the ongoing discussion on the socio-political and religious dynamics of the Muslim minority in Sri Lanka. The theme has attracted wider scholarly attention in the last ten years for a reason. It is because since the civil war ended in 2009, the community has been portrayed as a ‘new other’ that should be controlled by dominant majoritarian apparatus. As a result, ultra-Buddhist nationalist forces in Sri Lanka systematically mainstreamed global Islamophobic discourses that connect Islam/Muslims with violence and barbarism, exclusivist culture. Hence, the scholarly community showed a deep interest to study the root causes of the phenomenon, its impact as well as responses of the Muslim community in general. As such, quite considerable amount of academic works was published exploring the unfolding dynamics and its historical genealogy in detail.
THE EUROPEAN SOURCE OF GUNNERY PRACTICAL KNOWLEDGE IN KITĀB AL-ʿIZZ WA AL-MANĀFIʿ LI AL-MUJĀHIDĪN FĪ SABĪL ALLĀH BI AL-MADĀFIʿ
Authors: Mansour Mohamed Sabri  , Khairil Husaini Jamil  , Ahmed Jomaa Abd Al-Hamid
Published: September 2024

The Arabic manuscripts are known for their historical role as dynamic tools for restoring Muslim's historical identity and records. It covers a wide range of areas and fields, including military technology. The military engineer Captain Ibrāhīm ibn Aḥmad ibn Muḥammad ibn Ghānim ibn Zakariyyā al-Andalusī (d. 1641 AD) produced a remarkable well-illustrated encyclopaedic book in 1632 AD, a veritable practical artillery manual. Titled Kitāb al-ʿIzz wa al-Manāfiʿ li al-Mujāhidīn fī Sabīl Allāh bi al-Madāfiʿ (The Book of Glory and Benefits for those who fight with Cannons on the Path of Allāh). The work was translated into Arabic in 1638 AD by a fellow Morisco Aḥmad ibn Qāsim ibn Shaykh al-Ḥajarī al-Andalusī (d.1642 AD). This work has a significant impact in the field of the firearms industry. The book contains superb engravings entirely consecrated to artillery, which includes content on European artilleries. The Andalusian artisans specialised in distinctive Western military techniques and contributed to their diffusion throughout the Islamic world to oppose their enemies. Due to the author’s background and experience, he was conscious of Euro-Christian superiority in artillery and the value of well-trained and instructed gunners. This article extracts from his work some significant exposition in this aspect. It represents a short account on the European source of firearm knowledge, a constituent of Islamic technology. The main objective of this research is to identify the European source on which the author relied. The methodology used in doing this research is library-based. The significance of this research is to shed light on the Andalusian efforts in transferring firearms know-how technology from the West to the East.
Devotional Poetry, Exceptional Calligraphy, Charming Manuscript
Authors: Amir H. Zekrgoo
Published: September 2024

The Middle Eastern manuscript collection of Baillieu Library, the University of Melbourne, is custodian to a very fine 19th century manuscript of Haft-Band (Seven Strophes) by the 14th century devotional poet Mullā Ḥassan Kāshī. This illuminated manuscript is most probably of Indian origin. It is penned in superb Nasta’liq script by Muḥammad Amir Raẓavi/Riẓvi in the age of 95. The volume begins with an attractive sarlowḥ, and concludes with a beautiful colophon and an additional interesting page at the end of the manuscript. Subjects discussed in this paper are arranged under nine headings. After a brief ‘Introduction,’ a short passage is allocated to the significance of number seven under ‘Symbolism of Seven and the Haft-Band Genre.’ A concise biography of the poet, his beautiful mausoleum, and the importance of his Haft-Band are discussed under ‘Ḥassan Kāshī’. ‘A Mystical Dream’ provides an insight into a chain of historical events that were inspired and initiated by the poet’s stunning dream, which eventually led to the wide acceptance of the Haft-Band. Before Kāshī, the genre of madḥ (praise) was almost exclusively dedicated to kings and rulers for a reward. Kāshī transformed the trend of praise poetry by shifting the focus of the praise. This matter is discussed under ‘From Praising Kings to Religious Devotion.’ A glimpse of Kāshī’s genius mind and poetic mastery is presented under ‘Seven Openings & Seven Closings’. The next heading, ‘About the Manuscript’ provides an analytical study of the manuscript, from codicological perspectives. ‘Scribe and Colophon’ and ‘A Stunning Ending’ are titles of passages dedicated to introducing the old scribe’s world and his personal poetic taste.