bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimization of Supercritical Carbon Dioxide Extraction of Essential Oils in Philippine Cananga odorata Hook Fil et. Thomson Flowers by Response Surface Method
Authors: Yahcob Sheeva M. , Malaluan Roberto M.
Published: January 2024

Essential oil was extracted from the flowers of Philippine Cananga odorata var. genuina grown in Pala-o, Iligan City by supercritical carbon dioxide (SC-CO2). A statistical experimental design, first order 2^3 factorial, was used to investigate the effects of three independent variables (pressure, temperature, and flow rate of CO2) on % oil yield (w/w), & linalool (v/v) and % benzyl benzoate (v/v) on the extracted oil. An optimum oil yield (9.21 % w/w) was obtained under the following SC-CO2 extraction operating conditions (98.61 bar, 39.58 deg C, 2.99 mL/min). Gas chromatography was performed on the ilang-ilang oil extracted by SC-CO2 extraction, laboratory, and commercial scale hydrosteam distillation. Degradation products were observed in the hydrosteam distillated sample.
Evaluation of Chemistry Content Knowledge and Verbal Analogical Reasoning as Potential Predictors of Teachers' Quality of Chemistry Concept Analogies
Authors: Asenjo Stephen Bryan
Published: January 2024

This study evaluated the possible relationship of Chemistry Content Knowledge and Verbal Analogical Reasoning to Teacher's Chemistry Concept analogies among 20 Public High School Science Teachers in Cebu, Philippines using validated questionnaires. Test for Chemistry Content Knowledge showed that teacher-respondents' scores has a mean of 34.90, indicating an approaching proficiency level of knowledge in Chemistry concepts with Chemical reactions and Atomic structure as the least and mastered topics, respectively in the test.  A mean of 23.10 was a result for the test in Verbal Analogical reasoning, indicating a below-average analogical reasoning skills among teacher-respondents. These then implied the need to improve teacher-respondents Chemistry Content Knowledge and Verbal Analogical Reasoning skills. Moreover, analogies by the teacher-respondents on Chemistry concepts exhibited qualities of good analogies, although some qualities such as the use of functional similarities and discussing the deviation of the target and analog concept were not observed. It was also found out that there were no significant relationship among the variables, Chemistry Content Knowledge and Verbal Analogical Reasoning as indicated by the p-value of 0.360. Moreover, relationships between Chemistry Content Knowledge to Chemistry Concept Analogies and Verbal Analogical Reasoning Analogies to Chemistry Concept Analogies were also not significant as indicated by p-values 0.097 and -0.068, respectively. Hence, Levels of Chemistry Content Knowledge and Verbal Analogical Reasoning were not predictors of the quality of analogies employed by teachers in teaching Chemistry concepts. This study aimed to provide educational experts insights into these factors' underlying relationships and improve chemistry education quality by supporting teachers' understanding of Chemistry concepts and use of analogies. Moreover, results of this study filled the gap of understanding the relationship between Chemistry Content Knowledge and Analogical Reasoning to teachers' effective use of analogies in teaching Chemistry concepts.
Consumption of Glucosinolate-Rich Nasturtium officinale and Brassica oleracea L. var. sabellica May Reduce the Risk of Cancer Occurrence in Humans
Authors: Malabed Raymond , Noel Marissa , Cabusido Marguerita Gabrielle , Chua Johnica , Janairo Lorenzo Gabriel , Sy Mikaela Beatrice , Oyong Glenn
Published: January 2024

Vegetables containing glucosinolates, commonly referred to as crucifers, are gaining popularity due to their anticancer benefits in human.  Glucosinolates are secondary metabolites that are usually found in cruciferous vegetables belonging to the family Brassicaceae. Several studies pointed out that glucosinolates could undergo hydrolysis and produce bioactive isothiocyanates, via the action of enzyme myrosinase. In this study, the total glucosinolates in watercress (Nasturtium officinale) and kale (Brassica oleracea L. var. sabellica) were quantified using high-performance liquid chromatography (HPLC). HPLC analysis revealed that watercress contains 228.93 ± 26.39 μmol/g, while kale contains 87.60 ± 80.12 μmol/g of total glucosinolates. Analysis of cyclocondensation products via HPLC directly correlates the amount of isothiocyanates present in the extracts, which were found to be 0.398 ± 0.018 and 0.378 ± 0.014 for unhydrolyzed watercress and kale, respectively. An increase in isothiocyanate content was observed for both watercress and kale after subjecting them to hydrolysis in the presence of myrosinase enzyme. Moreover, the biological activity of the extracts derived from the plants was determined using standard assay methods. Free radical DPPH assay showed that methanolic extracts of both watercress and kale exhibit antioxidant properties with the IC50 values of 13.04 ± 1.11 µg/mL and 33.14 ± 1.44 µg/mL, respectively. On the other hand, the hydrolysates showed higher scavenging activity values reported at the IC50 values of 7.69 ± 0.93 µg/mL and 20.40 ± 1.26 µg/mL, for watercress and kale, respectively. PrestoBlue™ assay also revealed the ability of the aqueous extracts to selectively target cancer cells. Watercress showed anticancer potential towards breast adenocarcinoma (MCF-7, IC50 = 17.67 ± 1.64 µg/mL). On the other hand, kale showed anticancer potential towards small lung cancer cell (H69PR, with IC50 = 19.35 ± 1.54 µg/mL) and colon cancer cell (HT-29, IC50 = 18.32 ± 2.41 µg/mL). Moreover, the extracts were found to be non-cytotoxic to normal cells (HDFn, human dermal fibroblast neonatal, IC50 >100 µg/mL), which indicates that the extracts are selective towards targeting cancer cells.
Molecular Docking of Ecdysone Agonists and Limonoid Components of Calamondin Seeds to Tobacco Budworm Ecdysone Receptor
Authors: Abrera Annabelle , Castrosanto Melvin , Hermocilla Joseph Anthony , Manalo Marlon
Published: January 2024

Molecular docking of calamondin limonoids to tobacco budworm ecdysone receptor was performed to calculate binding affinities and evaluate their potential as an insecticide. Results were compared to those of 20-hydroxyecdysone, ponasterone A, and known ecdysone agonists by examination of binding interactions between the ligands and receptor. While an earlier study by other researchers attributed the stronger binding of ponasterone A to (de)solvation effects, molecular dynamics simulations in this study revealed stronger hydrogen bonds between the receptor and ponasterone A, consistent with calculated binding affinities from molecular docking. None of the limonoids and ecdysone agonists showed stronger binding affinity than 20-hydroxyecdysone, suggesting that site-specific docking may not be suitable to predict the binding interactions of these non-steroidal ligands with tobacco budworm ecdysone receptor. The computational approach described in this study can be used in the preliminary screening of compounds for bioactivity against receptors with known active sites.
A Brief History of the Kapisanang Kimika Ng Pilipinas
Authors: Sevilla Fortunato III
Published: January 2024

The community of chemists in the country developed from the graduates of the pharmacy program established in the University of Santo Tomas during the Spanish regime.  The number of university-trained chemists increased during the American era, and eventually a formal organization of chemists, the Chemical Society of the Philippines, was established in 1937.  The various aspects of the organization, from its By-Laws to its activities, during its 85 years of existence are reviewed in this paper.
Knowledge and Sources of Information on COVID-19-Related Misconceptions among Chemistry Undergraduates
Authors: Paneda Erika Angela , Bungihan Melfei
Published: January 2024

Along with the problem of the COVID-19 pandemic, the world also faces a problem with misconceptions. These speculations can worsen the situation and wreak havoc on decisions made by the public. This study investigated the level of knowledge of Chemistry undergraduates on COVID-19-related misconceptions. A total of 153 undergraduates participated in the survey. Analysis revealed that the common misconceptions among undergraduates are the need to disinfect surfaces of food packaging, the transmissibility of the SARS-CoV-2 virus through the water while swimming, the need for quarantine for live animals imported from countries with a high prevalence of COVID-19 and getting infected through touching a communal bottle of alcohol-based sanitizer. Results also showed that the undergraduates mainly rely on internet browsing as their source of information about the COVID-19 pandemic. There are 3 students who obtained a score of less than 50% of the total points, thereby having poor knowledge regarding COVID-19. On the other hand, 55 students obtained a score between 50% to 75% of the total points, thereby having a moderate level of knowledge regarding COVID-19. Lastly, 95 students obtained a score above 75% of the total points, having good knowledge regarding COVID-19. Additionally, the usual way for students to address the misconceptions surrounding the COVID-19 pandemic is by depending on reliable sources and research.
AUTOMATED AND MANUAL LEUKOCYTE DIFFERENTIAL COUNTS IN HEALTHY EQUINES
Authors: Silva Maria Fernanda Cazini , Brito Luma Maria Rovina , Martins Beatriz de Azevedo , Lopes Laryssa Eduarda de Campos , Duarte Yasmin Cunha , Morais Matheus Nogueira , Vasconcelos Laura Arduino , Mendonça Mariana Orlandini , Martins Tainara de Oliveira , Montechiesi Daniela Fernandez , Martins de Almeida Breno Fernando
Published: January 2024

The speed and convenience provided by automated cell counters are reasons for the increasing use of this technology in veterinary practice, with impedance methodology being one of the most commonly used in Brazil. In this regard, the objective of this study was to compare the automated differential leukocyte count obtained by impedance with the manual count obtained from the evaluation of blood smears in healthy horses. For this purpose, the automated differential leukocyte count using a veterinary cell counter (Abx Micros ESV 60, Horiba) was compared to the manual count using optical microscopy in 545 blood samples from healthy horses. Paired t-tests or Wilcoxon tests, Deming regression, Pearson or Spearman correlations, and Bland-Altman analysis were used, considering differences significant when p<0.05. The automated method showed higher concentrations of segmented neutrophils and monocytes, and lower concentrations of lymphocytes and eosinophils compared to the manual method. The mean error of the automated count was -10.26% for segmented neutrophils, 11.04% for lymphocytes, -41.39% for monocytes, and -10.84% for eosinophils, ranging from -200% to 161.4% depending on the cell type. There was a significant correlation between the methodologies only for the counts of segmented neutrophils, lymphocytes, and eosinophils. In conclusion, the manual differential leukocyte count in healthy horses cannot be replaced by the automated method, and the analysis of blood smears remains a fundamental tool for the proper interpretation of the leukogram in horses.
Evaluating the Efficacy of Interventional Approaches for Cardiac Arrhythmias in Acute Myocardial Infarction
Authors: Wang Bin , Zhong Deshan , Shi Zhangwei , Zhang Fulong
Published: January 2024

Objective: To assess the effectiveness of interventional treatments for cardiac arrhythmias in acute myocardial infarction (AMI). Methods: Eighty AMI patients admitted between August 2022 and August 2023 were selected and randomly assigned into groups using the random number table method. The control group (n = 40) received conventional thrombolytic treatment, while the observation group (n = 40) underwent percutaneous coronary intervention (PCI). Clinical effects were compared between the two groups. Results: Before treatment, there were no significant differences in heart rate indicators, cardiac function indicators, and physiological indicators between the two groups (P > 0.05). After treatment, the observation group showed significantly improved heart rate indicators, cardiac function indicators, and physiological indicators compared to the control group (P < 0.05). The adverse reaction rates in the observation group were lower than in the control group (P < 0.05). Conclusion: PCI treatment demonstrated significant improvements in heart rate, cardiac function, and physiological indicators among AMI patients, leading to a reduced incidence of adverse reactions such as arrhythmia. The overall effect is deemed significant.
Discussion on the Treatment Methods and Value of the No-Reflow Phenomenon During Percutaneous Coronary Intervention
Authors: Ma Wenying , Wei Liye , You Yang , Zhao Hongliang , Wang Pu , Wang Sheng , Qi Guoqing
Published: January 2024

Objective: To explore the treatment methods and value of the no-reflow phenomenon during percutaneous coronary intervention (PCI). Methods: 180 patients with acute myocardial infarction (AMI) who underwent PCI treatment at the First Hospital of Hebei Medical University from November 2020 to December 2022 were selected and divided into Group A, Group B, and Group C by random number table extraction method, each group included 60 cases. Group A received intracoronary injection of recombinant human urokinase and Group B received intracoronary injection of diltiazem. Group C adopted a targeted drug administration strategy of “front and back pinch method,” where targeted thrombolysis was performed in the target vessel before the stent was released to quickly dissolve the residual thrombus near the lesion and the small distal thrombus; recombinant human urokinase was subsequently injected in the targeted vessel. The incidence of cardiovascular events, cardiac function, and quality of life of the three groups were analyzed. Results: After the intervention, the incidence rates of angina pectoris, heart failure, and recurrent myocardial infarction in Group C were lower than those in Group B (P < 0.05); the overall incidence rate was the lowest in Group C, followed by Group A and Group B; after intervention, left ventricular end-diastolic diameter, end-systolic diameter, and ejection fraction in Groups A and C were all better than those of group B (P < 0.05), and Group C was better than Group A; after intervention, the scores of different dimensions of quality of life in Groups A and C were higher than those of Group B (P < 0.05). Conclusion: AMI patients are prone to the no-reflow phenomenon after PCI treatment. Using recombinant human urokinase to complete the “front and back pinch method” can effectively improve the no-reflow phenomenon, reduce the incidence of cardiovascular events, optimize cardiac function, and improve the patient’s quality of life and survival rate.
Penciptaan Desain Motif Berdasarkan Fenomena Pareidolia
Authors: Azaria Syahda Isyela , Rahadi Panji Firman
Published: January 2024

Dewasa ini desain motif berkembang pesat menjadi ciri khas dan memberikan suatu

pesan lewat desain motif yang beragam. Desain motif dapat dibuat secara spontan atau

sengaja dibuat. Salah satu contoh dari desain motif yang sengaja dibuat adalah desain

motif yang mengambil atau menangkap sebuah bentuk dari objek lain. Dengan adanya

inovatif dalam membuat desain motif, seorang desainer dapat terinspirasi juga dari sebuah

fenomena. Salah satu contohnya adalah fenomena Pareidolia. Fenomena Pareidolia ini

merupakan fenomena psikologi yang dapat memberikan suatu efek ketika melihat sebuah

benda. Efek yang diberikan Pareidolia ini menghasilkan sudut pandang yang membentuk

wajah atau bentuk lain dari benda-benda mati yang dilihat. Bentuk-bentuk yang dihasilkan

dari Pareidolia sangatlah unik dan beragam. Berdasarkan hal tersebut terlihat potensi yang

dapat dijadikan ide desain motif untuk diaplikasikan pada benda siap pakai, contohnya

seperti media tekstil.
Makna Simbolik Bentuk Fisik (Rupa) Rebab Sunda
Authors: Karmila Euis , Wastap Jaeni B , Saleh Sukmawati
Published: January 2024

Artikel ini bertujuan untuk mengetahui makna simbolik bentuk fsik (rupa) Rebab pada masyarakat Sunda. Makna simbol yang belum terpublikasi menjadi dasar penulisan artikel ini. wawancara yang dilakukan sebagai bahan pendukung referensi pencarian makna

simbol pada Rebab Sunda. Metode penelitian yang dilakukan yakni kualitatif berdasarkan data yang diperoleh dari wawancara, studi pustaka, serta pengamatan terhadap objek melalui dokumentasi. Teori hermenutika Hans-Georg Gadamer sebagai landasan teori

dalam pemaknaan bentuk fsik (rupa) Rebab Sunda yang memaknai melalui konteks pengalaman. Hasil dari penelitian ini, dapat disimpulkan bahwa bentuk fsik Rebab Sunda secara simbolik merupakan sebuah representasi dari organ tubuh manusia simbol

dari perempuan. Makna yang diambil dari pengalaman empirik, sebagai simbol bahwa mempelajari rebab membutuhkan proses mengolah rasa dengan waktu yang lama. Rebab diartikan sebagai pergantian masalah, pergantian bagian, atau pergantian keadaan, sebagai makna simbolik berhubungan dengan teknik bermain rebab yang mengalami pengulangan, hal tersebut berkaitan dengan pola primordial yang ada pada masyarakat Sunda.
Dadung Feast Rite As A Cultural Expression in Legok Herang Village, Kuningan district
Authors: Retnawati Nina , Wastap Jaeni B , Saleh Sukmawati
Published: January 2024

This research aims to examine the tradition of the Dadung Party in Legokherang village, Kuningan Regency, West Java. A tradition that expresses gratitude to God for the harvest and the entity maintaining the relationship between living creatures and nature. The research method used is qualitative with a dance anthropology approach which is elaborated with choreographic concepts. This research shows that the Dadung Party is an integral part of community life and has been passed down from generation to generation. It also has connections to the Islamic beliefs propagated by the Wali Songo. This ritual involves various stages, such as worship, Rajah Pamunah, and entertainment and ritual equipment that must be adhered to by community participants. This tradition is a preserved cultural heritage and functions as a balance to modern culture. The noble philosophical values contained in the dance at the Dadung Party although this dance does not have fixed movements, the emphasis on expression as a manifestation of feelings is very important. Local cultural continuity is a dynamic part of society, and external cultural influences must be adapted to the worldview and local culture.
LA UBICACIÓN GEOGRÁFICA DEL ESTADO Y SUS REPERCUSIONES EN EL MUNDO GLOBAL ACTUAL
Authors: Queirolo Pellerano Fulvio
Published: January 2024

La presente investigación pretende demostrar la vigencia de la teoría del determinismo geográfico, postulada por Ratzel, en el mundo global actual. Si convenimos que la multilateralidad se sobrepuso a los espacios que habían sido conquistados por los defensores de la unilateralidad hegemónica, puesta a prueba tras el fin de la Guerra Fría, se podría concluir que, hoy por hoy, dicho postulado pierde vigencia.

Es apreciable observar los beneficios que ha traído consigo una mayor interdependencia política, económica y tecnológica global para la humanidad, generando condiciones que presagian una convivencia más armónica, centrada en imaginarios compartidos y alejados de conflictos. Entonces, ¿Cómo podría sostenerse un determinismo geográfico bajo estas condiciones? En consecuencia, esta hipótesis constituirá el eje de la comunicación, buscando demostrar su pleno valor y pertinencia.
Analisis kemampuan literasi numerasi peserta didik smp ditinjau dari pola pikir matematis
Authors: Khomariah Nur , Zawawi Irwani , Suryanti Sri
Published: January 2024

Kemampuan literasi numerasi peserta didik merupakan salah satu kemampuan yang perlu ditingkatkan dalam menghadapi tantangan pendidikan abad 21. Salah satu faktor yang mempengaruhi literasi numerasi peserta didik adalah pola pikir matematis. Penelitian ini bertujuan untuk mendeskripsikan kemampuan literasi numerasi peserta didik dengan pola pikir matematis dalam menyelesaikan soal kontekstual. Metode penelitian menggunakan pendekatan kualitatif desktiptif yang dilaksanakan di UPT SMPN 18 Gresik pada semester gasal tahun ajaran 2022/2023. Teknik pengambilan subjek menggunakan teknik purposive sampling. Subjek pada penelitian ini adalah 2 peserta didik kelas VIII-I dengan jenis pola pikir matematis yang berbeda. Pengambilan data melalui angket, tes dan wawancara dan dianalisis menggunakan model Milles dan Hubberman meliputi reduksi data, penyajian data, verifikasi dan pengambilan keputusan. Teknik uji keabsahan data yang diperoleh berupa triangulasi sumber. Hasil penelitian menunjukkan bahwa peserta didik yang memiliki growth mindset berada pada level 1,2,3,4,5, sedangkan peserta didik yang memiliki fixed mindset berada pada level 1,2,3.
Implementation of the Self Organized Learning Environment (SOLE) learning model at MTs bilingual sabilil khoir
Authors: Mahfudhoh Ifa Dwi , Dhewy Risdiana Chandra
Published: January 2024

Along with the development of education in Indonesia, teachers must prepare interesting learning strategies in order to facilitate the learning process and delivery of material to students. Not only teachers but students must also actively participate in the learning provided by the teacher. The SOLE learning model is a learning model created so that students can organize themselves into groups and learn to use smartphones connected to the internet with teacher guidance. The purpose of this study is to see the implementation of SOLE learning in terms of teacher activities, student activities, student learning outcomes, and student response questionnaires. This research is included in a quantitative descriptive study conducted at MTs Bilingual Sabilil Khoir in class VII-C with a total sample of 14 students. In the implementation of the SOLE learning model in this study, the results of teacher activities showed 3.25 "good" categories. The results of student activities can be said to be effective because on average each indicator gets > 70% which can be categorized as "Active". In the classical learning outcomes section, 78.6% are said to be "complete". And in the student response section, it is said to be positive because the student response questionnaire is on the "very good" criteria. The application of the Self Organized Learning Environment (SOLE) learning model can be used as a solution to the mathematics learning model so that it is student-centered, so that students can learn independently to understand the subject and can develop their confidence.
Deskripsi kemampuan komunikasi matematis siswa SMP Negeri 1 Kemangkon berdasarkan dominasi otak
Authors: Wulandari Afrina Kartika
Published: January 2024

Penelitian ini merupakan penelitian kualitatif yang bertujuan untuk mendeskripsikan kemampuan komunikasi matematis siswa SMP Negeri 1 Kemangkon berdasarkan dominasi otak. Subjek penelitian yaitu kelas VIII G, subjek dikelompokkan menjadi 2 kategori yaitu : kategori dominasi otak kanan dan otak kiri. Peneliti mengambil 3 sampel pada setiap kategori untuk dijadikan responden dan dipilih menggunakan teknik purposive sampling. Metode pengambilan data menggunakan observasi, angket, tes tertulis, wawancara dan dokumentasi. Teknik analisis data menggunakan model Miles and Huberman yang meliputi reduksi data, penyajian data dan penarikan kesimpulan. Hasil yang diperoleh menunjukkan bahwa 1) siswa dominasi otak kiri mampu menyajikan suatu masalah matematika yang diberikan dalam bentuk model matematika kedalam berbagai bentuk representasi dengan tepat, menjabarkan ide/gagasan dari suatu permasalahan kedalam bahasa matematika melalui bahasa sendiri dalam bentuk tertulis, dan menjelaskan konsep matematika secara runtut. 2) siswa dominasi otak kanan sudah menyajikan suatu masalah matematika yang diberikan dalam bentuk model matematika kedalam berbagai bentuk representasi dengan baik, sudah dapat menjabarkan ide/gagasan dari suatu permasalahan kedalam bahasa matematika melalui bahasa sendiri dalam bentuk tertulis dan masih lemah dalam menjelaskan konsep matematika secara runtut.Kata kunci: Kemampuan komunikasi matematis, dominasi otak
Berpikir komputasi di dalam kurikulum merdeka : analisis pada guru matematika
Authors: Marom Saiful -
Published: January 2024

Tujuan dari artikel ini adalah menyoroti serta mendiskusikan aspek tentang persepsi awal terkait kemampuan berpikir komputasi pada pembelajaran matematika pada kurikulum merdeka. Selanjutnya kegiatan pelatihan  ini juga memiliki kontribusi ke dalam kegiatan penelitian sehingga harapannya membawa perubahan pada proses pembelajaran matematika. Metode penelitian yang digunakan adalah metode campuran yaitu penelitian kualitatif dan penelitian kuantitatif, Selanjutnya metode kualitatif yang digunakan adalah studi kasus. Selanjutnya pada proses pengambilan data menggunakan analisis data kuantitatif. Hasil dari kegiata penelitian ini adalah  adalah menunjukkan bahwa kurangnya pengetahuan awal terkait berpikir komputasi olwh guru. Serta kegiatan pelatihan ini mampu menghasilkan pembelajaran matematika yang terintegrasi matapelajaran matematika.
Pengaruh Model Pembelajaran Problem Solving Berbantuan Geogebra Terhadap Kemampuan Pemecahan Masalah Matematika
Authors: Gunur Bedilius , Ramda Apolonia Hendrice , Riska Anjelina , Tamur Maximus
Published: January 2024

Penelitian ini bertujuan untuk membandingkan kemampuan pemecahan masalah matematika siswa yang mengikuti model pembelajaran Problem solving berbantuan Geogebra dengan siswa yang mengikuti model pembelajaran konvensional. Penelitian ini menggunakan desain Posttest Only Control Group Design. Populasi yang digunakan adalah seluruh siswa kelas VIII SMP Negeri yang berjumlah 54 orang. Pengambilan sampel dilakukan dengan teknik sampling jenuh. Data dikumpulkan dengan teknik tes. Hasil penelitian menunjukkan kemampuan pemecahan masalah matematika siswa yang menggunakan model pembelajaran Problem Solving berbantuan geogebra lebih baik daripada siswa yang menggunakan model pembelajaran konvensional
Model Project Based Learning pada Mata Kuliah Metode Peramalan
Authors: Kholijah Gusmi , Sormin Corry , Z Gusmanely
Published: January 2024

Pendidikan tinggi memiliki tujuan terhadap capaian kualitas lulusan mahasiswa dalam bentuk sikap, keterampilan umum, keterampilan khusus dan pengetahuan. Pencapaian kualitas lulusan direalisasikan dalam mata kuliah yang diajarkan dalam perkuliahan yang dilaksanakan. Salah satunya dengan mengembangkan capaian pembelajaran mata kuliah melalui penelitian terhadap pembelajaran. Pembelajaran yang dilakukan harus menumbuhkan skill mahasiswa, sehingga pembelajaran yang diadakan berbasis kepada proyek. Pembelajaran dilakukan dengan proyek pada mata kuliah metode peramalan. Metode Peramalan memiliki capaian mata kuliah berupa keahlian dalam analisis data. Mata kuliah ini dapat dikerjakan dalam bentuk proyek pada topik analisis regresi sederhana, regresi berganda dan regresi dummy. Pelaksanaan proyek dikerjakan oleh mahasiswa dalam skema team-based yang dilaksanakan dalam bentuk tim. Kemudian mata kuliah ini juga dilaksanakan dalam bentuk penelitian dan pengembangan yang menghasilkan produk Capaian Pembelajaran Mata Kuliah, Silabus dan Kontrak Perkuliahan, Rencana Pembelajaran Semester, Rencana Tugas Project Mahasiswa atau Lembar Kerja Project Mahasiswa, Lembar Penilaian Hasil Belajar sesuai dengan model pembelajaran berbasis proyek, soal ujian serta rubrik penilaian yang telah di-review. Kemudian hasil evaluasi melalui indikator motivasi belajar dan indikator aktivitas belajar mahasiswa diperoleh bahwa persepsi yang baik terhadap kegiatan model pembelajaran Metode Peramalan menggunakan projek. Hasil angket persepsi tersebut dianalisis dengan uji reliabilitas, didapatkan nilai cronbach’s alpha sebesar 0,799. Nilai ini mengartikan bahwa reliabilitas mata kuliah metode peramalan tinggi. Hal ini menyampaikan bahwa angket persepsi mahasiswa terhadap mata kuliah metode peramalan tinggi.
Analisis Kemampuan Berpikir Kreatif Matematis Materi Perbandingan Pada Siswa Kelas V
Authors: Dewantari Anggun Cintya , Hilyana F. Soufika , Ermawati Diana
Published: January 2024

Penelitian ini berawal dari permasalahan yaitu adanya siswa yang kurang bersemangat dalam menyelesaikan soal cerita, ada beberapa siswa yang dalam menyelesaikan soal matematika masih bingung dalam menyelesaikan soal dengan cara/langkah yang berbeda-beda, selain itu siswa cenderung malas untuk menyelesaikan soal secara mandiri dengan langkah yang tepat. Penelitian ini bertujuan untuk mendeskripsikan kemampuan berpikir kreatif dalam kategori tinggi dalam kemampuan matematis. Penelitian ini merupakan penelitian deskriptif kualitatif dan dilakukan di SD 1 Peganjaran. Dua orang siswa kelas V dan seorang guru kelas V yang menjadi informan dalam penelitian tersebut. Teknik observasi, wawancara, dan dokumentasi digunakan untuk memperoleh data. Analisis data dengan menggunakan model Miles dan Huberman terdiri dari pengumpulan data, reduksi data, penyajian data, dan kesimpulan atau verifikasi.
Upaya peningkatan kemampuan berpikir kreatif matematik ditinjau dari mathematical resiliency peserta didik kelas VIII melalui pembelajaran problem-based learning
Authors: Saidah Inarotus
Published: January 2024

Kemampuan berpikir kreatif matematis dan resiliensi matematik merupakan aspek penting dalam pembelajaran matematika di sekolah. Tujuan penelitian ini untuk mengetahui keefektifan dalam pembelajaran problem based learning terhadap kemampuan berpikir kreatif matematis siswa dan mendiskripsikan kemampuan berpikir kreatif ditinjau dari resiliensi matematis pada pembelajara problem based learning. Penelitian ini menggunakan metode mixed methode dengan desain sequential explanatory. Penelitian ini dilaksanakan di MTs NU Demak. Sampel dalam penelitian ini adalah kelas VIII B dan VIII C. Subjek penelitian ini dipilih 7 siswa berdasarkan kategori resiliensi matematis tingkat tinggi, sedang, dan rendah. Teknik analisis data kuantitatif menggunakan uji normalitas, uji homogenitas, uji rata-rata, uji proporsi, uji beda rata-rata, dan uji regresi linier sederhana. Teknik analisis data kualitatif yaitu melalui tahap reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian ini menunjukkan bahwa pembelajaran problem based learning efektif terhadap kemampuan berpikir kreatif matematik siswa, hal ini ditunjukkan dengan hasil (1) Kemampuan berpikir kreatif matematis peserta didik pada pembelajaran problem based learning mencapai ketuntasan individual dengan rata-rata hasil tes kemampuan berpikir kreatif matematik peserta didik dengan Problem Based Learning lebih dari 70; (2) Kemampuan berpikir kreatif matematik peserta didik pada pembelajaran problem based learning mencapai ketuntasan klasikal dengan proporsi peserta didik yang tuntas individual pada pembelajaran Problem Based Learning lebih dari 75%; (3) rata-rata kemampuan berpikir kreatif matematik kelas eksperimen lebih baik daripada kelas kontrol; dan (4) Terdapat pengaruh resiliensi matematis sebesar 15,8% terhadap kemampuan berpikir kreatif matematik peserta didik pada pembelajaran problem based learning. Kemampuan berpikir kreatif matematis siswa ditinjau dari resiliensi matematis pada pembelajaran problem based learning memiliki penguasaan indikator yang bervariasi. Terdapat 2 siswa dari 7 siswa yang termasuk dalam kategori relesiensi matematis tinggi memiliki penguasaaan indikator KBKM yang berbeda yaitu 1 siswa memenuhi seluruh indikator KBKM dan 1 siswa msmpu memenuhi 3 indikator KBKM. Demikian juga 3 siswa yang termasuk dalam kategori relesiensi matematis yang rendah memiliki variasi indikator KBKM yang berbeda yaitu 1 siswa memenuhi satu indikator yaitu elaboration, 1 siswa  memenuhi satu indikator yaitu elaboration, dan 1 siswa memenuhi satu indikator yaitu fluency. Pada 2 siswa yang termasuk dalam kategori relesiensi matematis yang rendah memiliki variasi indikator KBKM yang berbeda yaitu 1 siswa hanya memenuhi indikator originality dan tidak memenuhi satupun indikator KBKM. Kata kunci: Resiliensi Matematik; Kemampuan Berpikir Kreatif Matematis; Problem Based Learning.
Analisis reversible thinking matematis pada siswa SMA ditinjau dari gaya kognitif terhadap materi eksponen logaritma
Authors: Nur Fauziyah Siti Fatimatus Sholiha Azhari,
Published: January 2024

Penelitian ini bertujuan untuk menguji apakah kemampuan berpikir secara berkebalikan, yang disebut reversible thinking, diperlukan dalam menjawab pertanyaan matematika. Penelitian ini juga bermaksud untuk menggambarkan bagaimana kemampuan berpikir secara berkebalikan dalam konteks matematika dimanifestasikan oleh siswa SMA. Penelitian ini bersifat deskriptif kualitatif dan melibatkan dua subjek, yaitu satu siswa dengan gaya kognitif Field Independent dan satu siswa dengan gaya kognitif Field dependent. Pemilihan subjek penelitian ini didasarkan pada penggunaan instrumen tes gaya kognitif Group Embedded Figure Test (GEFT). Teknik pengumpulan data yang digunakan adalah tes. Instrumen yang digunakan mencakup GEFT, Tes Reversible Thinking matematis Eksponen Logaritma, dan Lembar Validasi Tes untuk mengukur kevalidan instrumen. Hasil penelitian menunjukkan bahwa kedua subjek, baik yang Field Independent (FI) maupun yang Field dependent (FD), berhasil memenuhi semua indikator dalam menyelesaikan soal eksponen logaritma.  Kata kunci:  kemampuan reversible thingking matematis;  eksponen logaritma;  gayaKognitif; field independent, field dependent.
Deskripsi kemampuan representasi matematis siswa kelas VIII ditinjau dari gaya kognitif reflektif-impulsif
Authors: Ningsih Risma Taniati , Akhsani Lukmanul
Published: January 2024

Kemampuan representasi matematis dibutuhkan siswa guna memperoleh gagasan matematis dari sesuatu yang abstrak ke konkret. Kemampuan representasi matematis memiliki hubungan yang erat dengan gaya kognitif. Penelitian ini bertujuan untuk untuk mendeskripsikan kemampuan representasi matematis siswa kelas VIII yang ditinjau dari gaya kognitif reflektif-impulsif. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Subjek dalam penelitian ini adalah siswa kelas VIII G SMP N 1 Buayan yang dipilih menggunakan teknik purposive sampling. Siswa dikelompokkan ke dalam empat gaya kognitif yaitu reflektif, impulsif, cepat akurat, dan lambat tidak akurat, kemudian dipilih 3 siswa dengan gaya kognitif reflektif dan 3 siswa dengan gaya kognitif impulsif. Pengumpulan data menggunakan angket, tes tertulis, dan wawancara. Teknik analisis data menggunakan model Miles and Huberman yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa (1) Siswa bergaya kognitif reflektif sudah mampu menguasai indikator kemampuan representasi visual dan simbolik dengan baik, juga telah mampu menggunakan teks tertulis atau kata-kata untuk menjawab soal, namun belum mampu menuliskan urutan langkah-langkah menemukan solusi dari permasalahan dengan kata-kata dengan baik; (2) Siswa bergaya kognitif impulsif sudah mampu menguasai indikator kemampuan representasi visual dan verbal dengan baik, juga telah mampu memanfaatkan simbol, namun belum mampu menyusun suatu model matematis dalam proses penyelesaian masalah dengan baik.Kata kunci: Kemampuan Representasi Matematis; Gaya Kognitif Reflektif-Impulsif
Analisis kemampuan pemecahan masalah menurut teori Wankat-Oreovocz ditinjau dari gaya kognitif FD & FI
Authors: Anisah Ainun Niswatil
Published: January 2024

Students' problem solving abilities are one of the basic abilities that need to be improved to make it easier for students to solve a problem. One of the factors that influences solving ability is cognitive style. The aim of this research is to describe the problem solving abilities of students with FD and FI cognitive styles. This research method uses a qualitative approach with descriptive research type. The subject of this research was class VIII B of SMP Muhammadiyah 4 Kebomas which consisted of 2 students from each category. The data collection methods used were the GEFT test, problem solving ability test, and interviews and were analyzed using the Milles and Hubberman model, namely data reduction, data presentation, and drawing conclusions. The technique for testing the validity of the data uses time triangulation. The results showed that the FD subject only met indicator number 3, namely being able to ask questions, while the FI subject met all the Wankat-Oreovocz indicators.Kata kunci: Mathematical Problem Solving Skills, Wankat-Oreovocz Theory, Cognitive Style.
Density theorems and its applications
Authors: Abyzov A. N.
Published: January 2024

This article is semi-review and is also methodological in nature. The article discusses generalizations of the Jacobson-Chevalley density theorem, on the basis of which a number of results from linear algebra are presented, related to centralizers of locally algebraic linear operators. Also, based on Jacobson’s approach to constructing Galois theory based on the density theorem, a proof of Hilbert’s theorem 90 and some of its well-known generalizations are given.
Cranial nerves palsy in pituitary apoplexy outcome post emergent surgery
Authors: JWAD ALI ABD-ALMER
Published: January 2024

Introduction:pituitary apoplexy (PA), an uncommon clinical condition brought on by rapid bleeding or infarction. The primary symptom, a sudden, severe headache, is occasionally accompanied by vision abnormalities or ocular palsy. Aim of the study :to assess the benefit of an emergent trans sphenoidal approach and its results, as well as the deficit of cranial nerves other than the optic nerve in the recovery from pituitary apoplexy.Patient and methodsA prospective study of cranial nerve deficit in pituitary apoplexy and their prognosis in patients with apoplexy followed up on 16 patients from 2018 to 2020 who had cranial nerve deficits throughout their hospital stays and for up to two years following release.Results :Oculomotor nerve intracavernous segment has more predilection to involve in pituitary apoplexy cavernous invasion in our study we include other cranial nerves to expel the presenting oculomotor nerve palsy in comprise to other cranial nerves and even with mixed cranial nerve involvement, the cranial nerve involvement and cavernous extension and the volume of tumor effect additional compression on cranial nerve. Only one patient with 3rd cranial nerve palsy and one patient with mixed palsy is not recovered after six-month postoperative fellows while the majority retrieve their function during 1st three months.Conclusion:Patients with pituitary apoplexy who experienced ocular motility dysfunction due to cranial nerve palsies had favorable prognoses.Keywords: Pituitary apoplexy, cranial nerve palsy, pituitary adenoma
Waste Tetra Pak containers and its use in construction materials
Authors: Martínez-Barrera Gonzalo , Escobar-Campos Carlos Uriel
Published: January 2024

This work studies the incorporation of Tetra Pak packaging waste into construction materials. The results show a multifunctional use of such waste, since not only the mechanical properties are improved (without the need to recycle or modify the packages), but also environmental pollution is reduced by not dumping them in landfills. In addition, a valuable alternative based on the use of gamma rays for the treatment and recycling of waste materials is studied, which presents important advantages over traditional methods as it does not generate by-products or harmful residues.
Efecto del dopaje con Fe3+ en Bi0.5Na0.5TiO3 sinterizado a baja temperatura
Authors: Esquivel-Arias Luis Alberto , Bolarín-Miró Ana María , Sánchez-de-Jesús Félix , Cortes-Escobedo Claudia Alicia , Betancourt-Cantera Luis Gerardo
Published: January 2024

Los cerámicos piezoeléctricos de composición Pb[TixZr1-x]O3 (PZT) son ampliamente utilizados por sus excelentes propiedades.Sin embargo, son altamente contaminantes, por su contenido en plomo. En este trabajo se analizan las propiedades dieléctricas del potencial piezoeléctrico libre de plomo, Bi0.5Na0.5TiO3 (BNT) dopado con distintos contenidos de Fe3+, sinterizados a baja temperatura. La síntesis y procesamiento se realizó por medio de molienda mecánica de alta energía y posterior sinterización a 900 °C. Los resultados de difracción de rayos X confirman la síntesis BNT con estructura cristalina romboédrica para todo el rango de sustitución con Fe3+. Adicionalmente, la permitividad relativa de las muestras dopadas se encontraron en un rango de 400 a 500 mostrando mayor estabilidad en todo el rango de frecuencias, en comparación de la BNT sin dopar, se encuentran, sin observar una tendencia clara en función del contenido de Fe3+. Las pérdidas dieléctricas y conductividad eléctrica revelan la obtención de materiales con potencial para materiales piezoeléctricos a bajas frecuencias.
Electro-oxidación de ácido fórmico catalizada por nanopartículas paladio-oro
Authors: Medina-Rojano Víctor , Avalos-Huarte Emanuel , Montes de Oca-Yemha María Guadalupe , Romero-Romo Mario Alberto , Palomar-Pardavé Manuel Eduardo
Published: January 2024

En el presente trabajo se analizó el efecto del contenido de paladio en las nanopartículas de paladio-oro sintetizadas por un método químico para la electro-oxidación de ácido fórmico en medio ácido, a través del estudio potenciostático para obtener la densidad de corriente en estado estacionario (jss). La evaluación electroquímica fue realizada mediante las técnicas de voltamperometría cíclica (VC) y cronoamperometría (CA). Los electrocatalizadores obtenidos, fueron caracterizados por las Difracción de Rayos X (XRD), Microscopía Electrónica de Transmisión (TEM), Microscopía Electrónica de Barrido (SEM) y Espectroscopía de Energías Dispersivas de Rayos X (EDX).
Tarihi Samsun Evlerinde Cephe Düzenlemesi Üzerine Bir Araştırma
Authors: ÇELEMOĞLU Şuayip , İNCE Kasım
Published: January 2024

Orta Karadeniz Bölgesi’ndeki Samsun, coğrafi konumu itibariyle Karadeniz ile İç Anadolu’yu birbirine bağlamaktadır. Bu konumuyla önemli bir alanda yer alan kent, tarih boyunca birçok medeniyete ev sahipliği yapmıştır. Osmanlı Dönemi’nde, farklı din ve etnik grupların var olduğu kent, 19. yüzyılda, ticaretin gelişmesiyle önem kazanmış, buna bağlı olarak birçok yapı inşa edilmiştir. Bu yapıların büyük çoğunluğunu, evler oluşturmaktadır. Samsun merkezdeki evler, İlkadım sınırları içerisindeki Selahiye, Kadıköy, Kale ve Ulugazi mahallelerinde yoğunlaşmaktadır. Konu edilen evlerin cepheleri, bulundukları bölgenin zaman içerisinde sahip olduğu kültür birikimini yansıtırken, hane sahiplerinin sosyal ve ekonomik durumlarını da göstermektedir. Evlerdeki kapı, pencere, çıkma, balkon, konsol, taşıyıcı eleman ve kat silmeleri cephelere hareketlilik kazandırmaktadır. Bu cephe elemanlarının biçimi, boyutları ve kendi aralarındaki uyumları, cephenin karakterini oluşturur. Bu çalışmada, tarihi kent dokusunu oluşturan evlerin cephe özelliklerinin incelenmesi ve değerlendirilmesi amaçlanmıştır. Çoğunlukla 19. yüzyılın ikinci yarısı ile 20. yüzyılın başlarında inşa edildiği anlaşılan evler, günümüze kadar korudukları cephe tasarımlarıyla dönem üslubunu yansıtırlar. Aynı zamanda yapıldıkları dönemin kültür ve yaşam biçimini gösteren evlerin cephe özelliklerinin korunması kültürel sürekliliğin sağlanması bakımından önem taşımaktadır.
Komunikasi Puskesmas Samudera dalam Melayani Masyarakat Samudera Health Center's Communication in Serving The Community
Authors: Bungsu Agung , Muzakir Fohan , Agastyassa Owie Anggra
Published: January 2024

From the national to the regional level, communication impacts how well health services are delivered. A tool for gauging the effectiveness of health care is communication. The Samudera Health Center, one of the Pukesmas in Blang Peuria Village in the North Aceh province, has made an effort to improve governance in an effort to reform the bureaucracy. Prior to now, community members who received local services have expressed dissatisfaction with the bureaucracy's tendency to complicate conditions for public service, convolute procedures, and create ambiguity regarding service windows. This study was carried out to determine the community service efficacy of Samudera Health Center's communication efforts as well as the challenges it encountered. Interviews with four informants were performed utilizing the observational approach during the research using descriptive qualitative methodologies. According to the study's findings, the Samudera Health Center has implemented communication management, which involved the process of organizing, planning, implementing, and monitoring communication. The Samudera Health Center's insufficient resources, lack of knowledge of the local population, and lack of patience prevent effective communication from being felt by the service recipient community.
Jurnalisme Kebencanaan Berbasis Advokasi dari Media Mainstream di Tengah Maraknya Penggunaan Media Sosial (Studi Kasus Pemberitaan Gempa Bumi Kabupaten Cianjur di Harian Umum Pikiran Rakyat)
Authors: Kustiman Erwin , Amin Amin
Published: January 2024

ABSTRACT

This study aims to find out how the mainstream media (mainstream) in presenting journalism-standard news in reporting about earthquake natural disasters in Cianjur Regency, West Java Province. This is because the information that is widely consumed by the public actually comes from social media which is colored by the presence of hoaxes, misinformation, and disinformation.

This study uses the case study method, through purposive sampling with the subject of this research is news about the earthquake natural disaster in Cianjur Regency, West Java Province which is present in the Bandung People's Daily Mind as a representation of the mainstream media. This research is expected to obtain a model of disaster journalism (disaster journalism model) from HU Thoughts of the People of Bandung regarding the earthquake natural disaster in Cianjur Regency.

 

Keywords: Disaster Journalism, Mainstream Press Media, Social Media
Risk Communication in times of COVID -19: Public’s Perception in Sri Lanka
Authors: Weerasinghe Pradeep N'
Published: January 2024

In order for the public to make informed decisions during an emergency, they need to be equipped with accuracy, balance, impartial, and factual truth information. Thus, communication methods and news media play the role of creating an informed citizenry in times of emergency.  COVID-19 was termed a pandemic on March 11, 2020, by the WHO, and health officials released guidance, rules, and regulations for the public.  Thus, communication during the pandemic became crucial and society needed COVID-related information. Nevertheless, News Media dominated the scene by awaking the public regarding behavior, and methods to avoid contracting the virus, as well as mobilizing and empowering them. In this context, a problem arises as to whether News Media carried out its role as an emerging risk communicator effectively.  Thus, Emergency Risk Health Communication, Behavioral Change Communication, and Third Person concepts are applied to the study. The study employed a mixed research method for data collection and analysis purposes. The study found that the majority of the respondents faced a dilemma about what to do and were confused by the uncertain, ambiguous, emotional, and contradictory content of the COVID-19 messages. This study explored lack of expertise and professionalism in the mainstream media that contributed to the failure of COVID messages.