scholarly journals Identifikasi Perbedaan Keterampilan Berpikir Kritis Ditinjau dari Motivasi Belajar Peserta Didik

2021 ◽  
Vol 17 (1) ◽  
pp. 91-98
Author(s):  
Muhammad Samadya Liyanto ◽  
Disman Disman ◽  
Dadng Dahlan
Keyword(s):  
Post Hoc ◽  

Keterampilan berpikir kritis merupakan salah satu kompetensi yang penting dimiliki peserta didik pada abad ke-21. Keterampilan berpikir kritis telah diakui sebagai keterampilan yang penting dimiliki untuk keberhasilan belajar, bekerja dan hidup di abad ke-21. Keterampilan berpikir kritis dapat dipengaruhi oleh banyak faktor. Motivasi belajar merupakan salah satu faktor yang dapat mempengaruhi keterampilan berpikir kritis. Motivasi belajar dinilai memiliki hubungan sangat kuat dengan keterampilan berpikir kritis. Penelitian ini bertujuan untuk melihat perbedaan keterampilan berpikir kritis berdasarkan tingkat motivasi belajar peserta didik. Metode dalam penelitian ini menggunakan metode deskriptif verifikatif yang akan menguraikan, menjelaskan dan menguji kebenaran untuk melihat perbedaan keterampilan berpikir kritis berdasarkan tingkat motivasi belajar peserta didik. Teknik pengumpulan data melalui penyebaran tes essay untuk mengukur keterampilan berpikir kritis yang terdir dari 5 butir pertanyaan dengan dan angket motivasi belajar yang terdiri dari 25 butir pertanyaan dengan penskoran menggunakan skala Likert. Pengujian statistik yang dilakukan menggunakan uji statistic inferential parametric one-way ANOVA. Dari hasil uji statistik diketahui nilai Signifikansi (Sig.) adalah sebesar 0.014<0.05, sehingga dapat ditarik kesimpulan bahwa terdapat perbedaan yang signifikan antara keterampilan berpikir kritis peserta didik berdasarkan tingkat motivasi belajar. Selanjutnya, dari hasil uji Analisis Post Hoc Test menunjukkan bahwa terdapat perbedaan rata-rata keterampilan berpikir kritis yang signifikan antara peserta didik yang memiliki motivasi belajar rendah dengan peserta didik yang memiliki motivasi belajar tinggi.

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6753
Author(s):  
Ramona S. Oltramare ◽  
Reto Odermatt ◽  
Phoebe Burrer ◽  
Thomas Attin ◽  
Tobias T. Tauböck

The aim of this in vitro study was to investigate the degree of C=C double bond conversion of high-viscosity dimethacrylate- or ormocer-based bulk-fill composites as a function of measurement depth. Four bulk-fill composites (Tetric EvoCeram Bulk Fill, x-tra fil, SonicFill, and Bulk Ormocer) and the conventional nanohybrid composite Tetric EvoCeram were applied in standardized Class II cavities (n = 6 per group) and photoactivated for 20 s at 1350 mW/cm2. The degree of conversion of the composites was assessed using Fourier-transform infrared spectroscopy at seven measurement depths (0.15, 1, 2, 3, 4, 5, 6 mm). Data were analyzed using repeated measures ANOVA and one-way ANOVA with Bonferroni post-hoc tests (α = 0.05). The investigated bulk-fill composites showed at least 80% of their maximum degree of conversion (80% DCmax) up to a measuring depth of at least 4 mm. Tetric EvoCeram Bulk Fill and Bulk Ormocer achieved more than 80% DCmax up to a measuring depth of 5 mm, x-tra fil up to 6 mm. The conventional nanohybrid composite Tetric EvoCeram achieved more than 80% DCmax up to 3 mm. In contrast to the conventional composite, the investigated ormocer- and dimethacrylate-based bulk-fill composites can be photo-polymerized in thick layers of up to at least 4 mm with regard to their degree of C=C double bond conversion.


2018 ◽  
Vol 5 (10) ◽  
pp. 949-967 ◽  
Author(s):  
Daniel Silva Lula Leite ◽  
George Emmanuel Cavalcanti de Miranda

A urbanização nas zonas costeiras torna necessário avaliar o impacto antrópico sobre os ecossistemas associados. O objetivo deste trabalho foi analisar temporalmente a dinâmica de populações de macroalgas com potencial bioindicador, estabelecendo-as como ferramenta para avaliação da saúde ambiental. Foi amostrado o ambiente recifal intertidal da Praia de Formosa, no Município de Cabedelo, Estado da Paraíba, Nordeste do Brasil, durante intervalos trimestrais de agosto/2013 a novembro/2014. A variação temporal da frequência de ocorrência (F') das populações macrofitobênticas foi avaliada pela análise de variância (One-Way Anova) com teste Post-Hoc de Tukey. A influência das variáveis ambientais sobre F’ foi avaliada pela Correlação Linear de Pearson e pela PERMANOVA. A análise da qualidade ambiental e a proposta de biomonitoramento basearam-se no Grupo 1, formado por espécies perenes e/ou raras com maiores valores ao longo do Componente Principal 1 (CP1) da Análise de Componentes Principais (ACP), e Grupo 2, formado por espécies com comportamento errático com menores valores ao longo do CP1 da ACP. Foram encontradas 33 espécies macrofitobênticas. A frequência de ocorrência apresentou variação temporal, porém não influenciada pelo conjunto de variáveis ambientais. Phyllodictyon anastomosans, Gelidiella acerosa e Gelidium corneum compuseram o Grupo 1, com Dictyopteris delicatula, Canistrocarpus cervicornis e Hypnea spinella formando o Grupo 2. O Grupo 2 apresentou correlação positiva com a temperatura, alcançando as máximas frequências nos períodos mais quentes, mas esse fator isolado não é capaz de explicar a distribuição errática das espécies. A ocorrência de espécies bioindicadoras de eutrofização foi considerada natural, fato que, aliado à alta frequência de espécies bioindicadoras de qualidade ambiental, sugerem que o Recife de Formosa não sofre impactos antrópicos significativos. O desaparecimento de espécies perenes ou crescimento populacional significativo de espécie rara (Grupo 1), bem como a fuga do padrão temporal de frequência ou dominância do recife pelas espécies do Grupo 2, são indícios da ocorrência de impactos. Este trabalho fornece à gestão do Recife de Formosa uma eficiente ferramenta para avaliação do impacto urbano sobre a comunidade macrofitobêntica.


2018 ◽  
Author(s):  
Anita Dewi Moelyaningrum ◽  
Khoirul Ngibad ◽  
S.Pd Lilla Puji Lestari ◽  
Dessy Agustina Sari ◽  
Cahya Fajar Budi Hartanto ◽  
...  

This paper has been published in IOP Conf. Series: Journal of Physics: Conf. Ser1i2e3s415161748(9200‘1’8“)”012058 Lead (Pb) were toxic. Lead found in pipes, batteries, paint, dyes ceramic glaze, gasoline, and final waste disposal. The robusta coffee grouds residues had high carbon, nitrogen etc which can adsorb heavy metal.The purpose of this study is to analyze the robusta coffee grounds residues to adsorb the Pb in the water. The method of this research is a True Experimental using completely randomized design (CRD) method. There were control groups (C) and three treatments groups (T1; T2;T3; 5gram/ litre; 8gram/ litre; 10gram/ litre) with six repetitions. The robusta coffee ground residues were contacted for 2 hours.Total samples were24 samples which analyzed each parameter of the Pb with Atomic Adsorption Spectophotometry Analysis. The results showed that the more coffee ground residues that are exposed, increasingly turbid. The KS test showed that data were a normal distribution (sig=0,324). One way ANOVA test; Turkey post Hoc showed that there was sig difference between the control and treatment (F=4,326, Sig= 0,017). There were sig difference between control and treatment 2 and 3 (Sig=0,019; Sig=0,038). Robusta coffee grounds residues can reuse to adsorb the Pb pollution in the water. It can be a solution for treating the lead pollution in the water because of it easy to the application.


2021 ◽  
Vol 61 (2) ◽  
pp. 228-237
Author(s):  
Silvio Parničan ◽  
Pavol Peráček ◽  
Igor Tóth

Summary The variables impacting the efficiency of the offensive phase of the game in ice hockey may be determining factor for both the training process and game strategies. The research aimed to acquire and expand the knowledge about selected goal-scoring characteristics in the National Hockey League. A total of 511 even-strength goals were recorded in 129 randomly selected games in a regular-season 2020/2021 by indirect observation. Goals were differentiated by selected variable dimensions: location of the offensive team’s puck possession gain before scoring a goal, game situation preceding a goal, and the number of passes of the offensive team preceding a goal. Data were analyzed by performing a one–way ANOVA. Post hoc multiple comparisons were performed using the Tukey HSD test. The significance level of p ≤ 0.05 was used. Significant differences were found within all variable dimensions (p= 0.00001). In terms of the puck possession gain location, zone 1 (along the boards in the offensive zone) was the zone with the significantly highest mean score (p= 0.00305). Offensive zone play was significantly the game situation preceding most of the goals (p= 0.00000). The interval of the passes that preceded most of the recorded goals was the interval of 1 – 2 passes (p= 0.00000). Acquired results point out the dominance of particular variables and may help coaches to determine the content of the training process and game strategies. Based on the assumption of the realization of similar research in different environments in terms of the quality and age category, if the analogy would be found between the results of the present study and the results of potential studies, we can state the trends applicable to youth training.


Author(s):  
Anupam Bandyopadhyay ◽  
Pritha Chatterjee

Purpose: The inconsistencies and variations of creatine kinase level due to modifiable and non-modifiable factors were the basis of this study. The aim was to find out the relationships between creatinine and creatine kinase in the blood of somatotypes.    Methods: The 122 males, aged 10 to 20 years, were classified according to their somatotypes. Somatotypes were measured by the ISAK method. By standard laboratory methods, creatinine and creatine kinase estimate. The IBM SPSS version 24 is used for calculation. One way ANOVA followed by post hoc tests was performed to compare the variables among the three groups (p<0.05).   Results: Creatinine level in the blood insignificantly deferred among the three somatotypes. The significant differences (p<0.05) were found in creatine kinase level in the blood and creatinine/creatine kinase ratio among the three dominant Somatotypes. Creatine Kinase was significantly higher in Ectomorphs (212 U/L) than Endomorphs. Ectomorphs and mesomorphs have crossed normal creatine kinase levels (35 -175 U/L). The creatinine/creatine kinase ratio was found highest in endomorphs and lowest in the ectomorphs and significantly differed in three Somatotypes.   Conclusion: Creatinine production remains the same, indicating production of Creatinine is independent of specific body types. A significant higher Creatine Kinase level in Ectomorphs over Endomorphs showed fat content was not associated with it. Significant differences in Creatinine / Creatine Kinase ratio among Somatotypes suggested its relevance between cellular and morphological relationships and might uses as biomarkers. 


Author(s):  
Shashikala G. ◽  
Jyothi C. H. ◽  
Shashikala G. H.

Background: The study was undertaken to evaluate the learning and memory effect of lipid lowering drugs atorvastatin and simvastatin in alprazolam induced amnesic mice.Methods: The study was carried out on albino mice, divided into 4 groups of 6 animals each (either sex, 3-4 months of age, weight 25-30g). Amnesia was induced by administering Alprazolam (2mg/kg for 14 days) in all 4 groups from 1st to 14th day. In addition, group 2, 3 and 4 received Piracetam (400mg/kg), Atorvastatin (5mg/kg) and Simvastatin (5mg/kg) from 8th to 14th day respectively. The learning and memory of the animals was assessed by employing Elevated plus maze (EPM) and Step-down type passive avoidance (SDA) model.Results: Results were compared among the different groups using one way-ANOVA followed by post hoc Tukey’s test. The measured parameters were compared with standard drug Piracetam. In EPM model Atorvastatin (p<0.049) and Simvastatin (p<0.007) were comparable with standard drug Piracetam, whereas in SDA model only simvastatin group (p<0.001) showed significant result.Conclusions: In EPM model, both the statins showed significant improvement in learning and memory in alprazolam induced amnesic mice. However further studies are required to support these observations.


2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Mira Madona ◽  
Endah Setyaningrum ◽  
Gina Dania Pratami ◽  
Mohammad Kanedi

Pengendalian nyamuk Aedes aegypti sebagai vektor Demam Berdarah Dengue (DBD) telah banyak dilakukan dengan menggunakan pengendalian kimiawi yang semakin lama akan menimbulkan resistensi terhadap nyamuk Ae. aegypti sehingga dibutuhkan insektisida alami. Daun tomat (Solanum lycopersicum L.) memiliki kandungan flavonoid, saponin, alkaloid dan minyak atsiri bersifat entomotoxicity yang dapat menghambat daya tetas telur nyamuk Ae. aegypti. Tujuan penelitian ini adalah mengetahui efektivitas ekstrak daun tomat sebagai ovisida nyamuk Ae. aegypti. Desain penelitian ini adalah eksperimental menggunakan Rancangan Acak Lengkap (RAL) dengan 6 kelompok perlakuan yaitu 0,1%; 0,3%; 0,5%; 0,7%; 1% dan 0% (kontrol) dengan 25 butir telur pada tiap kelompok dan 4 pengulangan pada tiap perlakuan. Jumlah telur yang tidak menetas diamati setiap 6 jam sekali selama 72 jam, data kumulatif pada jam ke 18 dilakukan uji analisis one way ANOVA. Hasil penelitian ini menunjukkan bahwa jumlah telur yang tidak menetas antar perlakuan ada perbedaan secara bermakna (p=0,000) sedangkan hasil uji Post-hoc LSD menunjukkan bahwa konsentrasi yang paling efektif sebagai ovisida nyamuk Ae. aegypti adalah konsentrasi 1%.


2020 ◽  
Vol 13 (1) ◽  
pp. 11-18
Author(s):  
Retno Yulianti

Diabetes menyebabkan kerusakan jaringan akibat hiperglikemia dan hiperkolesterolemia. Stres oksidatif dapat menyebabkan peroksidasi lipid yang dinilai melalui kadar malondialdehid. Modifikasi gaya hidup dengan latihan fisik meningkatkan ambilan glukosa dan menurunkan profil lipid. Ekstrak daun sirsak berpotensi menurunkan kadar Malondialdehyde. Penelitian ini bertujuan untuk mengetahui efek ekstrak daun sirsak dan latihan fisik serta kombinasi terhadap kadar Malondialdehid hepar tikus diabetik. Tiga puluh ekor tikus putih jantan galur Wistar, dikelompokkan menjadi enam kelompok yaitu: pakan standar dan aquades (K1), pakan tinggi lemak dan metformin 45mg/kgBB/hari (K2), pakan tinggi lemak dan vitamin E 150 IU/kgBB/hari (K3), pakan tinggi lemak dan latihan fisik sedang 20 m/menit (K4), pakan tinggi lemak dan ekstrak daun sirsak 150 mg/kgBB/hari (K5), pakan tinggi lemak dan kombinasi (K6). Ekstrak daun sirsak diberikan selama 21 hari setelah diinduksi aloksan dan pakan tinggi lemak selama 5 minggu. Analisis data menggunakan uji One Way ANOVA dan dilanjutkan dengan uji Post Hoc LSD. Pada kelompok K6 mampu menurunkan gula darah puasa 70.97% dan kolesterol 62.47% dan bermakna dalam menurunkan kadar Malondialdehyde 0,9 µMol. Kesimpulan adalah kombinasi ekstrak daun sirsak dan latihan fisik memiliki kemampuan menurunkan kadar Malondialdehyde jaringan hepar.


2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Armelia Sari Widyarman ◽  
Stephani Sumadi ◽  
Tri Putriany Agustin

  Introduction: Clitoria ternatea flower contains flavonoid such as anthocyanin that gives the blue color to its flower and has antimicrobial activity.   Objectives: The aim of this study was to examine the effect of flower juice of Clitoria ternatea against Porphyromonas gingivalis biofilm viability in vitro.   Methods: This study was experimental laboratory research using biofilm assay method. P. gingivalis was cultured in BHI broth in 37°C for 24h under anaerobic condition. Fresh flowers of Clitoria ternatea were extracted using mortar and pestle and diluted into 6 different concentrations: 100%, 50%, 25%, 12.5%, 6.25%, and 3.125% with phosphate buffer saline (PBS). Chlorhexidine (0.2%) was used as positive control and biofilm without treatment as negative control. The flower juice was distributed into 96 well-plates that contained biofilm of P. gingivalis and incubated for 1h, 3h, 6h, and 24h in 37°C, anaerobic atmosphere. Biofilm was measured using crystal violet dye with microplate reader (490 nm). Data were statistically analysed using one-way ANOVA test and Post Hoc test with p<0.05 was set as significant different.   Result: Result showed that Clitoria ternatea flower juice significantly reduced the Porphyromonas gingivalis biofilm viability in all concentration and all incubation time. The most effective concentration to inhibit Porphyromonas gingivalis biofilm was 100% in 1h incubation time which biofilm was diminished (Optical Density=0.00). One way ANOVA test and Post Hoc test showed a significant biofilm reduction in all concentration and all incubation time after treatment with the flower juice compared to control (p<0.05).   Conclusion: Clitoria ternatea flower juice has antibiofilm effect against Porphyromonas gingivalis. This result showed this flower juice may be useful for combating periodontal pathogens. However, further studies using other bacteria are still needed to confirm this result.


2019 ◽  
Vol 11 (1) ◽  
pp. 23-32
Author(s):  
Cut Soraya ◽  
Sunnati ◽  
Fenny Wulandari

Perawatan saluran akar adalah perawatan yang dilakukan untuk mempertahankan gigi agar dapatberfungsi di lengkung gigi selama mungkin. Penyebab dominan dari kegagalan perawatan endodontikadalah adanya bakteri di dalam saluran akar. Bakteri yang paling sering ditemukan pada isolasi darigigi yang mengalami kegagalan perawatan saluran akar adalah Enterococcus faecalis (E.faecalis).Salah satu jenis tanaman herbal yang memiliki sifat antibakteri yang tinggi adalah tanaman mimba(A.indica). Tujuan penelitian ini untuk menganalisis efek antibakteri ekstrak daun mimba (A.indica)terhadap pertumbuhan E. faecalis. Penelitian ini merupakan penelitian eksperimental laboratorisdengan desain penelitian true experimental posttest only control group. Penelitian dilalukan denganmenguji ekstrak daun mimba (A.indica) pada konsentrasi 10%, 20%, 40%, 60%, 80% dan 100%terhadap pertumbuhan E. faecalis yang dilakukan di Laboratorium Mikrobiologi Fakultas KedokteranHewan (FKH) Universitas Syiah Kuala Banda Aceh. Hasil uji fitokimia yang dilakukan menunjukkanbahwa ekstrak daun mimba (A. indica) positif mengandung triterpenoid, phenolic compound, tanin,steroid dan saponin yang berperan sebagai antibakteri. Hasil uji efek antibakteri ekstrak daun mimba(A. indica) menunjukkan adanya pembentukan zona hambat di sekitar kertas cakram pada setiapkonsentrasi. Hal ini membuktikan bahwa ekstrak daun mimba memiliki efek antibakteri yangmemiliki kemampuan dalam menghambat pertumbuhan E. faecalis. Uji statistik digunakanmenggunakan one way ANOVA. Kemudian dilakukan uji lanjut (Post hoc test) menggunakan LeastSignificant Difference untuk menganalisis perbedaan efek antibakteri ekstrak daun mimba (A. indica)dalam konsentrasi 10%, 20%, 40%, 60%, 80% dan 100% terhadap pertumbuhan E.faecalis.Kesimpulan penelitian ini ekstrak daun mimba (A. indica) berpotensi menghambatpertumbuhan E. faecalis.Kata Kunci: Azadirachta indica, Enterococcus faecalis, perawatan saluran akar.


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