bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENERAPAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR SISWA DI SMAN 1 KOTA BENGKULU
Authors: Mulyani Arie , Haji Saleh 
Published: September 2023

Tujuan penelitian ini adalah untuk meningkatkan hasil belajar matematika siswa serta aktivitas siswa dengan menerapkan model Problem Based Learning. Subyek penelitian adalah siswa kelas XI IPA 1 SMAN 1 Kota Bengkulu yang berjumlah 32 siswa. Jenis penelitian ini merupakan penelitian Tindakan kelas yang terdiri dari dua siklus. Setiap siklus terdiri dari 4 tahapan yaitu (1) perencanaan, (2) pelaksaanaan, (3) evaluasi, dan (4) refleksi. Intrumen penelitian berupa lembar observasi dan tes hasil belajar. Analisis data menggunakan analisis deskriftif. Hasil penelitian menunjukkan adanya peningkatan dalam hasil belajar dan aktivitas siswa pada setiap siklusnya. Pada siklus I ketuntasan hasil belajar mencapai 62,5% dan aktivitas siswa dengan rata-rata 16 dikategorikan cukup aktif. Sedangkan pada siklus II ketuntasan hasil belajar mencapai 81.25% dan aktivitas siswa dengan rata-rata 19.5 dikategorikan aktif.
Peningkatan Hasil Belajar Matematika dengan Menerapkan Model Problem Based Learning pada Siswa Kelas XI Tata Busana SMK Negeri 5 Kota Bengkulu
Authors: Latif Muhammad Fahmi , Susanta Agus 
Published: September 2023

Penelitian ini bertujuan untuk meningkatkan hasil belajar matematika
serta aktivitas siswa
kelas XI Tata Busana SMKN 5 Kota Bengkulu pada materi Matriks tahun pelajaran 2022/2023, melalui penerapan Model Pembelajaran PBL. Subjek penelitian adalah siswa kelas XI Tata Busana SMKN 5 Kota Bengkulu berjumlah 16 orang. Bentuk penelitian yang dilakukan adalah PTK yang terdiri dari dua siklus. Hasil penelitian menunjukkan bahwa adanya perbaikan proses pembelajaran dan peningkatan pada setiap siklusnya. Hasil penelitian ini juga menunjukkan bahwa rata-rata hasil belajar matematika siswa pada siklus II meningkat dibandingkan skor siklus I. Ketuntasan hasil belajar dari 16 siswa yang mampu mencapai nilai KKM ada 15 orang dan jika dipersentasekan adalah 93,75% dengan nilai rata-rata 83,93.
Skor aktivitas belajar siswa meningkat dari Siklus I ke Siklus II masing-masing sebesar 11,25 dan 14,75 dengan kriteria cukup aktif dan aktif. Kesimpulan yang diperoleh dari hasil penelitian adalah penerapan model Problem Based Learning (PBL) dapat hasil belajar matematika dan keaktifan siswa kelas XI Tata Busana SMKN 5 Kota Bengkulu tahun ajaran 2022/2023 khususnya pada materi matriks.
Pengaruh Fasilitas Sekolah Terhadap Kompetensi Pedagogik Guru Matematika SMA Se-Kota Pekanbaru
Authors: Ningtiyas Fitri Ayu , Mahmuzah Rifaatul , Zahara Yulia , Sinaga Nurul Afni , Iramadhani Dwi 
Published: September 2023

Sekolah dengan fasilitas yang baik akan mendorong proses pembelajaran dan sekolah dengan fasilitas yang berkualitas rendah dapat menghambat pencapaian siswa. Analisis data yang digunakan dalam penelitian ini adalah regresi linear sederhana. Populasi penelitian ini adalah seluruh guru matematika SMA di Kota Pekanbaru, Riau yang berjumlah 156 orang dan tersebar dalam 39 sekolah. Sampel penelitian berjumlah 33 orang. Teknik pengambilan sampel dilakukan dengan 2 prosedur. Prosedur pertama, sekolah dikelompokkan menjadi 4 kategori berdasarkan nilai Ujian Sekolah. Prosedur kedua, sekolah dikelompokkan berdasarkan kecamatan agar dapat merepresentasikan seluruh guru matematika SMA yang ada di Kota Pekanbaru. Berdasarkan hasil penelitian, diperoleh value sebesar 0,008. Hal ini berarti bahwa terdapat pengaruh antara kompetensi pedagogik guru matematika SMA se-Kota Pekanbaru terhadap fasilitas sekolah.
Penerapan Pendekatan Realistic Mathematics Education (RME) untuk Meningkatkan Literasi Matematis dan Mereduksi Kecemasan Matematis Siswa
Authors: Komala Elsa , Erma Monariska  
Published: September 2023

Tujuan penelitian ini adalah untuk mengetahui peningkatan literasi matematis siswa yang menggunakan pendekatan Realistic Mathematics Education (RME) dibandingkan dengan peningkatan literasi matematis siswa yang menggunakan pendekatan saintifik, dan mengetahui kecemasan matematis siswa terhadap pembelajaran menggunakan pendekatan RME. Penelitian ini menggunakan kuasi eksperimen, dengan desain kelompok kontrol pretes-postes. Kelompok eksperimen memperoleh pembelajaran dengan pendekatan RME dan kelompok kontrol memperoleh pembelajaran dengan pendekatan saintifik. Populasi penelitian ini adalah seluruh siswa kelas VIII salah satu MTsN di Cianjur. Adapun yang di jadikan sampel dipilih sebanyak dua kelas dari delapan kelas yang ada dengan teknik purposive sampling. Untuk mendapatkan data hasil penelitian digunakan instrumen berupa tes literasi matematis dan skala kecemasan matematis berupa angket. Pengolahan data peningkatan literasi matematis menggunakan uji Mann-Whitney, dan data kecemasan matematis menggunakan presentase jawaban setiap siswa dari hasil angket. Berdasarkan analisis data, hasil penelitian menunjukkan bahwa peningkatan literasi matematis siswa yang memperoleh pembelajaran dengan pendekatan RME lebih baik daripada siswa yang memperoleh pembelajaran dengan pendekatan saintifik, peningkatan yang terjadi ada pada kategori rendah. Hasil skala kecemasan matematis menunjukkan bahwa kecemasan matematis siswa yang memperoleh pembelajaran dengan pendekatan RME sebagian besar siswa negatif, artinya sebagian besar siswa tidak cemas ketika pembelajaran yang dilakukan menggunakan pendekatan RME.
Remote body condition scoring of Nile crocodiles (Crocodylus niloticus) using uncrewed aerial vehicle derived morphometrics
Authors: Viljoen Devon , Webb Edward , Myburgh Jan , Truter Christoff , Myburgh Albert 
Published: September 2023

Population surveys of crocodilians using uncrewed aerial vehicles (UAV) or drones may become accurate and cost-effective alternatives to more traditional approaches. However, there are currently no quantitative methods for deriving body condition scores of crocodilians through remote sensing. This study presents seven UAV-based morphometric measures collected from rectified aerial imagery of farmed Nile crocodiles. Two hundred and eighty-eight Nile crocodiles, from two commercial crocodile farms in South Africa were included in this study. One farm housed crocodiles which appeared to have wider abdominal girths than those on the second farm, allowing comparisons for a range of sizes and body condition states. An initial disturbance assessment was conducted, and an appropriate flight altitude selected for image acquisition of farmed Nile crocodiles. Altitudes between 40m and 60m above ground level suited the studies requirements and minimized disturbance. A UAV-based body condition index for Nile crocodiles was then developed, offering a non-invasive alternative to traditional condition scoring methods. The body condition index (BCI) was calculated for each crocodile by measuring the relationship between total length and belly width (with the equation: BCI = BW/TL*10) derived from photogrammetrically processed orthophotos in GIS. The BCI values were then normalized to form a body condition score (BCS) with the equation: BCS = (BCI/1.27)*4 + 1. The BCS ranked crocodile body conditions from 1-5, where a score of 1 identified a crocodile that was comparatively thin or emaciated, while a score of 5 identified a crocodile that was relatively fat or obese in contrast to the other crocodiles assessed. A BCS of 3 was the most frequent across all crocodiles in the study, with few animals scoring a 1 or 5. The farm housing crocodiles with narrower abdominal girths had no BCS 5 occurrences, and the farm housing crocodiles with wider abdominal girths had no BCS 1 occurrences. This UAV-based body condition score could be applied to large wild or captive populations for a fast-paced health and welfare evaluation.
Placental pathology in perinatal asphyxia: a case–control study
Authors: Alongi Silvia , Lambicchi Laura , Moltrasio Francesca , Botto Valentina Alice , Bernasconi Davide Paolo , Cuttin Maria Serena , Paterlini Giuseppe , Malguzzi Silvia , Locatelli Anna 
Published: September 2023

IntroductionPlacentas of term infants with birth asphyxia are reported to have more lesion such as maternal vascular malperfusion (MVM), fetal vascular malperfusion (FVM) and chorioamnionitis with fetal response (FIR) than those of term infants without birth asphyxia. We compared the placental pathology of asphyxiated newborns, including those who developed hypoxic-ischemic encephalopathy (HIE), with non-asphyxiated controls.MethodsWe conducted a retrospective case–control study of placentas from neonates with a gestational age ≥ 35 weeks, a birthweight ≥ 1,800 g, and no malformations. Cases were asphyxiated newborns (defined as those with an umbilical artery pH ≤ 7.0 or base excess ≤ −12 mMol, 10-minute Apgar score ≤ 5, or the need for resuscitation lasting &gt;10 min) from a previous cohort, with (n=32) and without (n=173) diagnosis of HIE. Controls were non-asphyxiated newborns from low-risk l (n= 50) or high-risk (n= 68) pregnancies. Placentas were analyzed according to the Amsterdam Placental Workshop Group Consensus Statement 2014.ResultsCases had a higher prevalence of nulliparity, BMI&gt;25, thick meconium, abnormal fetal heart monitoring, and acute intrapartum events than controls (p&lt;0.001). MVM and FVM were more frequent among non-asphyxiated than asphyxiated newborns (p&lt;0.001). There was no significant difference in inflammatory lesions or abnormal umbilical insertion site. Histologic meconium-associated changes (MAC) were observed in asphyxiated newborns only (p= 0.039).DiscussionOur results confirm the role of antepartum and intrapartum risk factors in neonatal asphyxia and HIE. No association between neonatal asphyxia and placental lesions was found, except for in the case of MAC. The association between clinical and placental data is crucial to understanding and possibly preventing perinatal asphyxia in subsequent pregnancies.
Radio advertisement speech style preferences among listeners with different first languages within one country
Authors: Altrov Rene , Pajupuu Hille , Pajupuu Jaan , Kiisla Aet 
Published: September 2023

ObjectiveThe goal of the study was to find out if, in a society where there is a large community of people for whom the official state language is a second language, they prefer to listen to state-language radio advertisements in the same performance style as listeners for whom the official state language is their first language.MethodAn experiment was conducted in Estonia, with two groups: those who spoke Estonian as their first language and those who spoke Russian as their first language and Estonian as their second. Both groups listened to Estonian-language radio advertisements presented by various spokespeople, half of which were performed in a calm style (low arousal) and half in an energetic style (high arousal). They then rated the likability of each performance.ResultsThe results showed that both groups preferred the calm style but there were significant differences in the scores: the first group gave the calm style significantly higher scores than the second group, while the latter scored the energetic style more highly.ConclusionKnowing the advertising style preferences in a society where people have different first languages may allow for better targeting of advertising.
Pre-arterialization of coronary veins prior to retroperfusion of ischemic myocardium: percutaneous closure device
Authors: Choy Jenny S. , Hubbard Terry , Golts Eugene M. , Bhatt Deepak L. , Navia José A. , Kassab Ghassan S. 
Published: September 2023

BackgroundChronic coronary retroperfusion to treat myocardial ischemia has previously failed due to edema and hemorrhage of coronary veins suddenly exposed to arterial pressures. The objective of this study was to selectively adapt the coronary veins to become arterialized prior to coronary venous retroperfusion to avoid vascular edema and hemorrhage.Methods and resultsIn 32 animals (Group I = 19 and Group II = 13), the left anterior descending (LAD) artery was occluded using an ameroid occlusion model. In Group I, the great cardiac vein was blocked with suture ligation (Group IA = 11) or with occlusion device (Group IB = 8) to arterialize the venous system within 2 weeks at intermediate pressure (between arterial and venous levels) before a coronary venous bypass graft (CVBG) was implemented through a left internal mammary artery (LIMA) anastomosis. Group II only received the LAD artery occlusion and served as control. Serial echocardiograms showed recovery of left ventricular (LV) function with this adaptation-arterialization approach, with an increase in ejection fraction (EF) in Group I from 38% ± 5% after coronary occlusion to 53% ± 7% eight weeks after CVBG, whereas in Group II the EF never recovered (41% ± 2%–33% ± 7%). The remodeling of the venous system not only allowed restoration of myocardial function when CVBG was implemented but possibly promoted a novel form of “collateralization” between the native arterioles and the newly arterialized venules, which revascularized the ischemic myocardium.ConclusionsThese findings form a potential rationale for a venous arterialization-revascularization treatment for the refractory angina and the “no-option” patients using a hybrid percutaneous (closure device for arterialization)/surgical approach (CVBG) to revascularize the myocardium.
The feasibility and efficiency for constructing arteriovenous fistula with <2 mm vein—a systematic review and meta-analysis
Authors: Feng Ruijia , Wang Siwen , Yu Jianwen , Zheng Xunhua , Chen Wei , Wang Xin , Chang Guangqi 
Published: September 2023

BackgroundAutogenous arteriovenous fistula (AVF) is an efficient hemodialysis access for patients with end-stage kidney disease (ESKD). The specific threshold of vein diameter still not reached a consensus.MethodWe conducted a comprehensive search in PubMed, Embase, and Web of Science databases for articles which comparing the treatment outcomes of AVF with 2 mm as vein diameter threshold. Fixed and random effect model were used for synthesis of results. Subgroup analysis was designed to assess the risk of bias.ResultEight high-quality articles were included finally. Among a total of 1,075 patients (675 males and 400 females), 227 and 809 patients possessed &lt;2 mm and ≥2 mm vein respectively. Apart from gender and coronary artery disease (P &lt; 0.05), there was no significant difference in age, diabetes, hypertension or radial artery between maturation and non-maturation groups. The functional maturation rate was lower in patients with &lt;2 mm vein according to fixed effect model [OR = 0.19, 95% CI (0.12, 0.30), P &lt; 0.01]. There was no significant difference in primary [OR = 0.63, 95% CI (0.12, 3.25), P = 0.58] or cumulative patency rates [OR = 0.40, 95% CI (0.13, 1.19), P = 0.10].ConclusionVein diameter less than 2 mm has a negative impact on the functional maturation rate of AVF, while it does not affect the primary and cumulative patency rates (12 months).
Charge transport comparison of FA, MA and Cs lead halide perovskite single crystals for radiation detection
Authors: Bennett Stephanie H. , Ghosh Joydip , Gros-Daillon Eric , Lédée Ferdinand , Mayén Guillén Javier , Verilhac Jean-Marie , Zaccaro Julien , Chung Duck Young , Klepov Vladislav , Kanatzidis Mercouri G. , Sellin Paul J. 
Published: September 2023

We report a systematic comparison of the charge transport and radiation detection properties of inorganic and organic metal bromide single crystal perovskites. We studied the performance of Bridgman-grown CsPbBr3 single crystals, together with solution-grown FAPbBr3 and MAPbBr3 single crystals. Laser time of flight is used to measure the drift mobilities for all samples, and we report a maxium mobility value of 121 ± 10 cm V−1 s−1 for CsPbBr3. Alpha particle measurements were used to assess the mobility-lifetime products, with values recorded in the range of 2 × 10−4 cm2 V−1 to 1 × 10−3 cm2 V−1. Low temperature measurements showed an increase in bulk resistivity at temperatures down to 260 K, but no significant change to the drift mobilities. The overall performance of the Cs, FA and MA samples is compared and their potential for use in gamma spectroscopy measurements is discussed.
Strontium chloride improves bone mass by affecting the gut microbiota in young male rats
Authors: Xi Xueyao , Gao Yanan , Wang Jiaqi , Zheng Nan 
Published: September 2023

IntroductionBone mass accumulated in early adulthood is an important determinant of bone mass throughout the lifespan, and inadequate bone deposition may lead to associated skeletal diseases. Recent studies suggest that gut bacteria may be potential factors in boosting bone mass. Strontium (Sr) as a key bioactive element has been shown to improve bone quality, but the precise way that maintains the equilibrium of the gut microbiome and bone health is still not well understood.MethodsWe explored the capacity of SrCl2 solutions of varying concentrations (0, 100, 200 and 400 mg/kg BW) on bone quality in 7-week-old male Wistar rats and attempted to elucidate the mechanism through gut microbes.ResultsThe results showed that in a Wistar rat model under normal growth conditions, serum Ca levels increased after Sr-treatment and showed a dose-dependent increase with Sr concentration. Three-point mechanics and Micro-CT results showed that Sr exposure enhanced bone biomechanical properties and improved bone microarchitecture. In addition, the osteoblast gene markers BMP, BGP, RUNX2, OPG and ALP mRNA levels were significantly increased to varying degrees after Sr treatment, and the osteoclast markers RANKL and TRAP were accompanied by varying degrees of reduction. These experimental results show that Sr improves bones from multiple angles. Further investigation of the microbial population revealed that the composition of the gut microbiome was changed due to Sr, with the abundance of 6 of the bacteria showing a different dose dependence with Sr concentration than the control group. To investigate whether alterations in bacterial flora were responsible for the effects of Sr on bone remodeling, a further pearson correlation analysis was done, 4 types of bacteria (Ruminococcaceae_UCG-014, Lachnospiraceae_NK4A136_group, Alistipes and Weissella) were deduced to be the primary contributors to Sr-relieved bone loss. Of these, we focused our analysis on the most firmly associated Ruminococcaceae_UCG-014.DiscussionTo summarize, our current research explores changes in bone mass following Sr intervention in young individuals, and the connection between Sr-altered intestinal flora and potentially beneficial bacteria in the attenuation of bone loss. These discoveries underscore the importance of the “gut-bone” axis, contributing to an understanding of how Sr affects bone quality, and providing a fresh idea for bone mass accumulation in young individuals and thereby preventing disease due to acquired bone mass deficiency.
Proteomics and network pharmacology of Ganshu Nuodan capsules in the prevention of alcoholic liver disease
Authors: Yang Xiaonan , Wang Lei , Cui Xuejie , Zhang Jing , Liang Ying , Luo Zhaojing , Zhou Bingxue , Jiang Zheng , Yang Rachel Y. H. , Wu Yi , Wei Kunhua , Du Maobo , Qin Shuangshuang , Dai Chen , Zhao Guoliang 
Published: September 2023

IntroductionGanshu Nuodan is a liver-protecting dietary supplement composed of Ganoderma lucidum (G. lucidum) spore powder, Pueraria montana (Lour.) Merr. (P. montana), Salvia miltiorrhiza Bunge (S. miltiorrhiza) and Astragalus membranaceus (Fisch.) Bunge. (A. membranaceus). However, its pharmacodynamic material basis and mechanism of action remain unknown.MethodsA mouse model of acute alcohol liver disease (ALD) induced by intragastric administration of 50% alcohol was used to evaluate the hepatoprotective effect of Ganshu Nuodan. The chemical constituents of Ganshu Nuodan were comprehensively identified by UPLC-QTOF/MS, and then its pharmacodynamic material basis and potential mechanism of action were explored by proteomics and network pharmacology.ResultsGanshu Nuodan could ameliorate acute ALD, which is mainly manifested in the significant reduction of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in serum and malondialdehyde (MDA) content in liver and the remarkably increase of glutathione (GSH) content and superoxide dismutase (SOD) activity in liver. Totally 76 chemical constituents were identified from Ganshu Nuodan by UPLC-QTOF/MS, including 21 quinones, 18 flavonoids, 11 organic acids, 7 terpenoids, 5 ketones, 4 sterols, 3 coumarins and 7 others. Three key signaling pathways were identified via proteomics studies, namely Arachidonic acid metabolism, Retinol metabolism, and HIF-1 signaling pathway respectively. Combined with network pharmacology and molecular docking, six key targets were subsequently obtained, including Ephx2, Lta4h, Map2k1, Stat3, Mtor and Dgat1. Finally, these six key targets and their related components were verified by molecular docking, which could explain the material basis of the hepatoprotective effect of Ganshu Nuodan.ConclusionGanshu Nuodan can protect acute alcohol-induced liver injury in mice by inhibiting oxidative stress, lipid accumulation and apoptosis. Our study provides a scientific basis for the hepatoprotective effect of Ganshu Nuodan in acute ALD mice and supports its traditional application.
Impact of microplastics on the in situ, high-resolution of key nutrient dynamics at the soil-water interface in rice fields
Authors: Jiang Yizhen , Zhu Xiaoyan , Zhang Siyuan , Yang Jingang , Lu Yongzheng , Wang Ying 
Published: September 2023

Introduction: Microplastics are characterized by their small size, widespread distribution, and durability, present a significant environmental risk. Despite their omnipresence in terrestrial and aquatic systems, the potential consequences on nutrient cycling remain under-investigated. Microplastics have emerged as a focal point of current research, presenting both a challenge and a frontier in environmental science.Methods: This study explores the effects of microplastics on the high-resolution, in situ distribution and exchange dynamics of key nutrients, nitrogen (N) and phosphorus (P), at the soil-water interface in rice paddies, utilizing the Diffusive Gradients in Thin-films (DGT) technique.Results: Our results reveal distinct spatial distribution patterns for N and P across the soil-water interface. Labile phosphorus (P) concentrations were significantly higher in the soil than in the overlying water, whereas DGT-NO3− concentrations exhibited the inverse trend. Different microplastic concentrations notably impacted DGT-NO3− (P = 0.022) and DGT-NH4+ (P = 0.033), with an increase between 27.79% and 150.68%. Moreover, different particle sizes significantly influenced NH4+. Interestingly, paddy soil acted as a “source” for labile P and a “sink” for NH4+ and NO3−.Discussion: These insights provide valuable insights into the interactions between microplastics and nutrient cycles at the soil-water interface, and assess the effects on nutrient migration and transformation. The outcomes of this study will contribute to an improved understanding of the broader ecological implications of microplastic pollution in agricultural settings. It will also provide a foundation for the development of strategies to manage and mitigate the impacts of microplastic pollution in agricultural soils, particularly in rice dominated agroecosystems.