bluuebunny/crossref_metadata_2025 huggingface dataset:
Penerapan Model Pembelajaran Group Investigasi (GI) Dalam Meningkatkan Kemampuan Kognitif Siswa
Authors: Runengtih Runengtih , Setiawati Ina , Lismaya Lilis
Published: October 2020

The study aims to determine the application of the Investigasi Group learing model in improving the cognitive abilities of students in natural sciences subjects, namely the Excretion System material. This research is a Quasi eksperimental study, with a nonquivalent control group desaign. The population of this study was all students of class VIII 2018/2019 achool year. The research sample is one eksperimental class as a control class. Hypotesis testing using parametric statistical tests using t test obtained tcaount > ttable is 9,337 > 2,682, which means learning using the Group Investigasi model can improve cognitif abilities. Cognitive ability test results abtained the percentage of the average value for the experimental class that is 58,85. N gain results for the medium category and for the control class 0,40 in the medium� category. Form the results of the questionnaire data analysis as many as 89 % of students agreed that tehe Investigasi Geoup model could increase learining motivation. The results showed there was an increase in cognitive abilities in students using the Group Investigasi model
The role of cavity losses on non-adiabatic couplings and dynamics in polaritonic chemistry
Authors: Antoniou Panayiota , Suchanek Figen , Varner James F. , Foley Jonathan
Published: October 2020

We present a non-Hermitian formulation of the polaritonic structure of azobenzene strongly coupled to a photonic mode that explicitly accounts for the fleeting nature of the photon-molecule interaction. This formalism reveals that the polaritonic non-adiabatic couplings that facilitate cis-trans isomerization can be dramatically modified by photonic dissipation. We perform Fewest-Switches Surface Hopping dynamics on the surfaces that derive from our non-Hermitian formalism and find that the polaritonic isomerization yields are strongly suppressed for moderate dissipation rates, and that cavity-free isomerization dynamics are recovered under large dissipation rates. These findings highlight the important role that the finitelifetime of photonic degrees of freedom play in polaritonic chemistry.
Co-doped ZnO Nanowires for Low Temperature Methane Sensing Operational in Humid Environments
Authors: Morrin Aoife , Datta Niyanta
Published: October 2020

Sensitive and selective detection of methane is essential due to its role in the greenhouse effect, relevance to industrial safety and recently discovered importance as a biomarker for gastrointestinal health. However, obtaining a reliable response to low concentrations (<100 ppm) of methane at low temperatures, especially in presence of humidity still remains a great challenge. In this work, a metal-oxide based sensor capable of low methane concentration detection and humidity resistance is reported. Chemiresistive sensors based on ZnO nanowire films were grown by a hydrothermal process and doped with Co. In terms of methane detection, Co-doping of the ZnO nanowires enabled the sensor to operate optimally at the low operating temperature of 50oC and an improved sensitivity of response (lowest measured concentration: 1 ppm) was observed when compared to that of pure ZnO nanowire films. This increased sensitivity was attributed to an increase in donor-type vacancies and enhanced oxygen adsorption on the surface. A mesoporous silica molecular sieve was further integrated as a moisture filter layer to mitigate the effect of humidity. It is envisaged that based on the sensors’ performance characteristics reported here, that the sensor could be applicable for emerging diagnostic applications tracking methane emissions from the breath.
Quantitative Interpretation Explains Machine Learning Models for Chemical Reaction Prediction and Uncovers Bias
Authors: Kovacs David Peter , McCorkindale William , Lee Alpha
Published: October 2020

Organic synthesis remains a stumbling block in drug discovery. Although a plethora of machine learning models have been proposed as solutions in the literature, they suffer from being opaque black-boxes. It is neither clear if the models are making correct predictions because they inferred the salient chemistry, nor is it clear which training data they are relying on to reach a prediction. This opaqueness hinders both model developers and users. In this paper, we quantitatively interpret the Molecular Transformer, the state-of-the-art model for reaction prediction. We develop a framework to attribute predicted reaction outcomes both to specific parts of reactants, and to reactions in the training set. Furthermore, we demonstrate how to retrieve evidence for predicted reaction outcomes, and understand counterintuitive predictions by scrutinising the data. Additionally, we identify ”Clever Hans” predictions where the correct prediction is reached for the wrong reason due to dataset bias. We present a new debiased dataset that provides a more realistic assessment of model performance, which we propose as the new standard benchmark for comparing reaction prediction models.
De Novo Synthetic Design for Ultrafast Formation of Disulfide Bonds in Peptides and Proteins .pdf
Authors: Laps Shay , Atamleh Fatima , Kamnesky Guy , Sun Hao , brik ashraf
Published: October 2020

Despite six decades of efforts to synthesize peptides and proteins bearing multiple disulfide bonds, this synthetic challenge remains an unsolved problem in most targets (e.g. knotted mini proteins). Here we show a de novo general synthetic strategy for the ultrafast, high-yielding formation of two and three disulfide bonds in peptides and proteins. We developed an approach based on the combination of a small molecule, UV-light, and palladium for chemo- and regio-selective activation of Cys, which enables the one-pot formation of multiple disulfide bonds in various peptides and proteins. We prepared bioactive targets of high therapeutic potential, including conotoxin, RANTES, EETI-II, and plectasin peptides and the linaclotide drug. We anticipate that this strategy will be a game-changer in preparing millions of inaccessible targets for drug discovery.
Combining Electrocatalysts and Biobased Adsorbents for Sustainable Denitrification
Authors: Ma Zili , Klimpel Matthias , Budnyk Serhiy , Rokicińska Anna , Kustrowski Piotr , Dronskowski Richard , Mathew Aji , Budnyak Tetyana , Slabon Adam
Published: October 2020

Efficient treatment of domestic and industrial wastewater is one of the major challenges of the 21st century. Among the inorganic pollutants, nitrogen species are significant contaminants and the management of the nitrogen cycle is one the most crucial part of wastewater purification. Herein, we report an integrated method that minimizes the amount of used chemicals, can be empowered by renewable energy, uses renewables materials for ammonia recovery and is scalable. Complete denitrification of wastewater was achieved by combining electrochemical and adsorption treatment for real wastewater samples from the Stockholm water pilot plant. 98% of nitrate was selectively converted to ammonia over abundant copper electrocatalysts in Na2SO4 supporting electrolyte at –0.6 V vs. RHE within three hours. The valorized nitrate in form of ammonia could be recovered by means of cheap Kraft Lignin-SiO2 sorbents to achieve a total denitrification. The presented method is economically feasible, scalable and contributes to sustainable recycling within a circular economy.
Drug and Drug-like Molecule Binding to Interface of SARS-CoV-2 Sprotein:human ACE2 Complex: A Density Functional Theory Study
Authors: Suresh CH
Published: October 2020

SARS-CoV-2 S-protein:human ACE2 complex models.QM-MM optimized active site model of SARS-CoV-2 S-protein:human ACE2 interface.ONIOM(B3LYP/6-31G*:PM7) method is the chosen QM-MM method. DFT B3LYP/6-31G* level data on energetics is reported for drug-receptor interaction.Several FDA approved drugs and traditional herbal isolates are modelled.Used Gaussian16 to model the systems.

The interface cavity of SARS-CoV-2 S-protein:human ACE2 complex (M) for ligand (L) binding is modelled using a two layer ONIOM(B3LYP/6-31G*:PM7) method for sixteen traditional herbal isolates (THI) and nineteen drugs. The binding energy (Eb) of ML complexes increased with increase in dipole moment of Ls. Eb better than -80.0 kcal/mol is observed for digallic acid and adenosine 3',5'-bisphosphate whereas myricetin, glucogallin, sapropterin, tetrahydrobiopterin, protirelin and fidarestat showed Eb better than -60.0 kcal/mol. Multiple noncovalent interactions emanating from arginine, histidine, tyrosine, lysine, carboxylate and amide units (total around 6 - 8) of L, S-protein and ACE2 receptors provide the high binding energy. The sugar substitute aspartame modified with myricetin unit showed the best Eb -91.7 kcal/mol. ONIOM-linked DFT study is effective, affordable and reliable for a quantum chemical rational design approach to model drug-receptor binding process for COVID-19 drug development which sheds light upon the noncovalent binding features of receptor cavity.
Structure Revision of Protoaculeine B, a Posttranslationally Modified N-Terminal Residue in the Peptide Toxin Aculeine B
Authors: Irie Raku , Miyako Kei , Matsunaga Satoko , Sakai Ryuichi , Oikawa Masato
Published: October 2020

Here, we newly propose the structure of protoaculeine B, an N-terminal moiety of the marine peptide toxin aculeine B, as possessing the cis-disubstituted tetrahydro-beta-carboline framework. We prepared two truncated model compounds that lack long-chain polyamine by one-step Pictet-Spengler reaction of tryptophan, and compared the NMR and mass spectra and chemical reactivity with those of natural protoaculeine B. The synthetic models reproduced the profiles of the natural product well, which was conclusive for the structural revision.
Limited Awareness of Hepatitis B Adult Vaccination among Patients in a South Indian Teaching Hospital
Authors: Ravindra P Choudhary  , Mintu Mathew  , Roshni Jose  , Shamna K  , Silpa C Antony
Published: October 2020

Awareness about the Hepatitis B is less addressed in the Indian settings even though hepatitis seems to be a serious public health problem. Objective to assess the Hepatitis B adult vaccination status among the patients of a medical college teaching hospital and to check the proportion of patientsaffected with Hepatitis B. A cross-sectional observational study was carried out over a period of six months at inpatients general medicine department. Patients of adult age group (18 -59years) of both genders were included.Patient interview was done using Twelve structured questions for assessing the awareness about hepatitis B and vaccination status. Out of 82 patients interviewed demographic details shows equal number males and females [50%] with an average age group of40yrs. The proportion of hepatitis B was found to be 3.68% with male predominance. Majority of patients were found to be not vaccinated (n=70, 85.36%) and even awareness about hepatitis B infection as also very minimal among them. Poor educational status (p-value=0.0425) shows statistically significant association withlower vaccination status scores. Implementation of proper public awareness program and foster proper screening campaigns can resolve the current scenario of deprived vaccination status in India toa greater extent.
Invitro Efficacy of antioxidant activity in ethanolic and aqueous leaf extracts of Andrographis paniculata Nees and Rhinacanthus nasutus Kurz
Authors: Akilandeswari G  , Bupesh G  , Vijaya Anand A  , Saradhadevi K M  , Mayur Mausoom Phukan  , Meenakumari K
Published: October 2020

Plants are adundantly and are very promisive to be used as source of drugs in many diseases or infections and also it is a main agents of antioxidants which prevents the oxidative stress that are caused by the free radicals. There are numerous studies based on the pharmaceutical and classification of medicinal plants throughout the world. Leaves, fruits, roots are most frequently plant parts used in many research and studies. Here the present study was aimed to evaluate the in vitro antioxidant activity of aqueous and ethanol leaf extracts of Andrographis paniculata Nees and Rhinacanthus nasutus Kurz. Antioxidant is a substance which is used to prevent some types of cell damage in the body. Determination of their in vitro antioxidant activity were carried out by using methods such as DPPH (2,2-diphenyl-1picrylhydrazyl assay), ABTS (2,2′-azinobis (3-ethylbenzothiazolin 6-sulfonic acid assay), FRAP (ferric reducing antioxidant power assay) and SOD (super oxide anion scavenging) assay, H2O2 (hydrogen peroxide radical scavenging) assay. Moreover the ethanolic leaf extracts showed best antioxidant activity than the aqueous leaf extracts. Experimental results reveals that the leaves of A. paniculata have potent antioxidant and free radical scavenging activity than R. nasutus. Further investigation must be done for these two medicinal plants for the discovery of the bioactive compounds.
Assessment of the influence of cilostazol on learning-memory and motor co-ordination by rodent models
Authors: Sadgunottama goud kamparaj  , Kudagi B. L.  , Muthiah N. S.  , Pravin Kumar R
Published: October 2020

Dementia is a set of symptoms that include worsening of the routine of cognitive tasks, learning, reproducibility, and gait disturbances beyond typical aging. Activated c AMP can produce anti-apoptosis activity, neuroprotective activity, motor improvement, and cognitive enhancement activity. Cilostazol can increase c AMP levels, so this study aimed to evaluate the influence of cilostazol on learning-memory and motor coordination by rodent models. The rats were divided into 5 and 6 groups with 6 rats in each to test the hypothesis respectively. Before MES seizure induction the rats were trained for conditioned avoidance response for 14 days and the best one was selected for assessment. The performance of intervention treated groups to determine the memory retention effect was measured by applying a fixed number of shocks. The intervention treated groups were tested for motor coordination performance by rotarod test (4-45 RPM accelerating speed for 5 min) after 30 and 60 min. The latency time of each rat falls off from the rod for the first time was noted. The results were presented as Mean ± SD, tested by ordinary two way ANOVA followed by Tukey's multiple comparisons test. Cilostazol 100 mg/kg p.o demonstrated a significant memory enhancement activity in the conditioned avoidance response technique. Cilostazol 20mg/kg i.p alone and along with diazepam 2 mg/kg demonstrated a significant motor coordination performance in both sessions. The present study concludes that cilostazol has improved the learning & memory and motor coordination performances.
Incidence of dental traumatic injuries among teenagers and adults
Authors: Swetha Ilangovan  , Anjaneyulu K  , Geo Mani
Published: October 2020

Injury to the teeth or any other hard tissue or soft tissue surrounding the teeth in the oral cavity is called as dental trauma. Dental trauma is sudden and accidental. It requires attention and immediate treatment. This is a major issue due to its rate of occurrence and its prevalence all over the world. Preventing dental trauma will reduce the cost of its treatment and adequate knowledge about it should be taught to the public. This study aims to find the incidence of dental traumatic injuries among teenagers and adults. This was a retrospective study done under a hospital setting. All the patients' records were collected from June 2019 to March 2020 and were reviewed. The data included patients who had a history of dental traumatic injuries and were above the age of 13 years. The data was tabulated and entered in excel and the data were analysed using SPSS package software. p<0.05 was considered to be the level of statistical significance, in the study. Within the limitations of the study, the incidence of dental traumatic injuries among teenagers and adults was found. It was higher in young adults. Incidence of dental trauma was seen more in young adults- 19 to 35 years, with Male predilection. The mean age for Dental Trauma being 28.58 ± 13.52 years.
PENERAPAN STRATEGI METAKOGNITIF PADA MATA KULIAH KAJIAN MATEMATIKA SD UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MAHASISWA PGSD
Authors: Annisa Choirul
Published: October 2020

During the learning process of Kajian Matematika SD, there are only 10-15% of students who ask questions or give opinions. Students will express his opinion only when teacher raised questions. Writing test results also show that students are still cannâ€™t collecting the necessary information, give reasons and solve the problem. This indicates that the critical thinking skill of students still needs to be improved. Metacognition is awareness in using strategies in the learning process so they can actively learning, critical thinking, able to solve problems and make decisions. Metacognitive strategy that consist of planning, monitoring and evaluating can be used to develop the skill of metacognitive. This research belongs to the classroom action research. The results of this research obtained that the implementation of metacognitive strategies is able to improve students's critical thinking skills.
ANALISIS KUALITAS SOAL TRY OUT UJIAN NASIONAL DENGAN MENGGUNAKAN APLIKASI PROGRAM ANATES
Authors: Anggreini Dewi , Darmawan Caesar Angga
Published: October 2020

Try out bertujuan untuk melatih siswa mengerjakan soal ujian nasional. Try out dapat dijadikan sebagai pretest guna mengetahui kemampuan awal siswa sebelum mengerjakan soal Ujian Nasional. Populasi penelitian ini adalah seluruh siswa kelas XI peserta try out se-Kabupaten Tulungagung sebanyak 10933 siswa. Sedangkan jumlah sampel diambil menggunakan persamaan formula empiris yaitu sebanyak 327 siswa. Teknik pengambilan sampling dilakukan dengan cara random sampling. Metode pengumpulan data menggunakan metode dokumentasi. Dokumentasi ini diperoleh darii MKKS (SMP) Kabupaten Tulungagung berupa soal, kunci jawaban, lembar jawaban, dan skor jawaban peserta didik kemudian memasukkan skor jawaban peserta didik ke tabel tabulasi. Untuk mengetahui validitas empiris menggunakan teknik Point Biseral. Untuk analisis data menggunakan program Anates. Hasil penelitian menunjukkan bahwa soal try out Ujian Nasional SMP memiliki validitas kurikuler valid, validitas item, dan opsi pengecoh sebesar 100%. Sedangkan tingkat kesukaran sedang dan daya beda baik sebesar 65% reliabel.
RESPONS MAHASISWA TERHADAP PEMBELAJARAN BERBASIS PROYEK PADA MATA KULIAH STATISTIKA
Authors: Rahayu Dwi Shinta
Published: October 2020

Penelitian ini bertujuan untuk (1) mengetahui respons mahasiswa terhadap pembelajaran berbasis penilaian proyek pada mata kuliah statistika dan (2) mengetahui kendala-kendala yang dihadapi mahasiswa dalam proses pembelajaran berbasis penilaian proyek pada mata kulaih statistika. Penelitian kuantitatif deskripstif ini dilakukan dengan metode angket dan wawancara dengan subjek 30 mahasiswa Semester IV Prodi Pendidikan teknologi Informatika STKIP PGRI Tulungagung tahun ajaran 2015/2016. Hasil penelitian menunjukkan bahwa mahasiswa memberikan respons positif terhadap pembelajaran berbasis proyek pada mata kuliah statistika. Adapun kendala-kendala yang dihadapi antara lain karena masih belum familiarnya mahasiswa dengan penerapan pembelajaran berbasis proyek dan kurangnya beberapa pengetahuan yang terkait
DIAGNOSIS KESULITAN MAHASISWA DALAM MEMAHAMI STRUKTUR ALJABAR DAN SCAFFOLDING BERDASARKAN MAPPING MATHEMATICS
Authors: Muliawati Novita Eka
Published: October 2020

Penelitian ini bertujuan untuk (1) mendeskripsikan faktor penyebab kesulitan mahasiswa dalam memahami mata kuliah struktur aljabar (2) mendeskripsikan scaffolding yang sesuai untuk mengatasi kesulitan mahasiswa dalam memahami mata ajar struktur aljabar.Penelitian kualitatif deskripstif ini dilakukan dengan metode tes dan wawancara dengan subjek 6 mahasiswa terpilih dari 65 mahasiswasemester VI Prodi Pendidikan matematika STKIP PGRI Tulungagung tahun ajaran 2015/2016.Kriteria pemilihan subjek penelitian didasarkan pada nilai UTS pada mata kuliah Struktur Aljabar. Hasil penelitian menunjukkan bahwa faktor penyebab kesulitan mahasiswa dalam memahami mata kuliah struktur aljabar yaitu kurang memahami konsep materi terdahulu, kurang mampu membuat contoh secara umum, dan masih terbiasa berpikir dan menyelesaikan masalah secara prosedural. Sedangkan cara mengatasinya yaitu menggunakan scaffolding berdasarkan mapping mathematics. Adapun deskripsi tentang scaffoldingnya meliputi explaining, reviewing, restructuring, dan developing conceptual thinking.
PENDEKATAN PEMBELAJARAN METAKOGNITIF DENGAN MEDIA FLASH SWISHMAX PADA PEMBELAJARAN MATEMATIKA SMP
Authors: Farahsanti Isna , Exacta Annisa Prima
Published: October 2020

Penelitian ini bertujuan untuk mengetahui keefektifan pendekatan pembelajaran metakognitif dengan media flash swishmax terhadap prestasi belajar matematika siswa SMP. Penelitian ini merupakan penelitian eksperimental semu.Populasi penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 2 Sukoharjo tahun pelajaran 2015/ 2016, sedangkan kelas sampel adalah VIII I dan VIII B. Dari hasil penelitian mengindikasikan bahwa pada kelas dengan pendekatan pembelajaran metakognitif terlihat lebih hidup dibandingkan dengan pendekatan pembelajaran konvensional, karena siswa diharuskan selalu aktif dan berinteraksi dengan teman untuk memecahkan masalah yang diberikan. Selain itu penggunaan media flash swishmax untuk menyampaikan materi membuat siswa terlihat lebih antusias dan tertarik. Dapat disimpulkan bahwa pendekatan metakognitif dengan media flash swishmax memberikan prestasi belajar matematika yang lebih baik daripada pembelajaran konvensional.
ANALISIS KREATIVITAS SISWA DALAM MENYELESAIKAN SOAL MATEMATIKA PADA MATERI BARISAN DAN DERET
Authors: Anggreini Dewi , Asmoro Naning Dyah
Published: October 2020

Penelitian ini bertujuan untuk mengetahui tingkatan kreatifitas siswa dalam menyelesaikan soal matematika pada materi baris dan deret. Penelitian kualitatif deskripstif ini dilakukan dengan metode tes dan wawancara dengan subjek 41 siswa kelas XI TKR-3 SMK Sore Tulungagung. Sedangkan subjek yang diwawancarai sebanyak 6 siswa. Dari hasil tes dan wawancara dapat disimpulkan bahwa rata-rata siswa memenuhi satu aspek dari tiga aspek kreativitas itu berarti dalam menyelesaikan soal matematika siswa kelas XI-TKR 3 di SMK Sore Tulungagung termasuk siswa yang cukup kreatif (tingkat 1). Hasil trianggulasi hasil tes dan hasil wawancara dengan enam subjek wawancara tersebut peneliti menyimpulkan bahwa siswa kelas XI-TKR 3 di SMK Sore Tulungagung termasuk siswa yang cukup kreatif.
KORELASI RESPON SISWA TERHADAP PENGGUNAAN MEDIA PEMBELAJARAN AUDIO VISUAL DENGAN PRESTASI BELAJAR MATEMATIKA
Authors: Handono Handono
Published: October 2020

Salah satu metode pembelajaran yang sesuai untuk memudahkan siswa dalam belajar matematika adalah dengan menggunakan media pembelajaran Audio Visual. Judul dalam penelitian ini sebagai berikut: Korelasi Respon Siswa Terhadap Penggunaan Media Pembelajaran Audio Visual Dengan Prestasi Belajar Mata Pelajaran Matematika Pokok Bahasan Luas Tabung Di Kelas IX SMP Islam Surabaya. Metode penelitian ini adalah kuantitatif non parametris dengan menggunakan analisa data korelasi Spearman Rank untuk pengujian Hipotesis. Sampel dari penelitian ini adalah semua siswa kelas IX SMP Islam Surabaya yang berjumlah 40 siswa. Hasil penelitian menunjukkan bahwa terdapat korelasi antara respon siswa terhadap penggunaan media pembelajaran Audio Visual (X) dengan prestasi belajar (Y) siswa kelas IX SMP Islam Surabaya dan dari hasil penghitungan statistik nilai korelasinya positif dan lebih besar dari 5% yaitu 0,968 maka dapat dikatakan bahwa terdapat korelasi yang signifikan.
PENINGKATAN PRESTASI BELAJAR MATEMATIKA SISWA PADA MATERI BILANGAN ROMAWI MELALUI PEMBERIAN BALIKAN
Authors: Sunarto Sunarto
Published: October 2020

Penelitian ini bertujuan untuk mendapatkan gambaran obyektif peningkatkan prestasi belajar matematika siswa SD, khususnya pada materi bilangan romawi melalui penerapan pendekatan pemberian balikan. Penelitian ini merupakan penelitian tindakan kelas, yang rancangannya mengacu pada desain penelitin Kemmis dan Mc. Tagart, yang meliputi perencanaan, pelaksanaan tindakan, observasi, dan refleksi. Subjek penelitian adalah siswa kelas IV SDN Gador 2 tahun pelajaran 2014/2015. Instrumen penelitian meliputi lembar tes, lembar observasi, dan perangkat pembelajaran. Hasil penelitian menunjukkan bahwa dengan diterapkannya metode pemberian balikan terbukti mampu meningkatkan prestasi belajar siswa yaitu terjadinya peningkatan prestasi belajar siswa pada siklus I 71,25 dengan prosentase ketuntasan belajar siswa 75,00% meningkat pada siklus II menjadi 81,25 dengan prosentase ketuntasan belajar siswa 87,25%.

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PENINGKATKAN KEMAMPUAN BELAJAR MATEMATIKA SISWA MELALUI PENGGUNAAN MODELTHINK PAIR SHARE (TPS)
Authors: Asih Sri
Published: October 2020

This research is aimedÂ  to improve mathematics students learning ability in elementary school, especially on fraction materials through throughthe implementation of cooperative learning on think pair share. This research was a classroom action research refferedto Kemmis and Mc Taggartâ€™s design, which includes planning, acting, observing, and reflecting. The research subject were all the student of sixthgrade Â in SDN 2 Tropodo Waru Sidoarjo inÂ  theÂ  the period of 2015/2016. Before the implementation of the action, the ability of learn to mathematics very low and the student less enthusiastic for mathematics class. After the action is applied, the results of the test and ability learn to mathematics onÂ  cycle I and cycle II, there is a significant increase.

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Keywords: mathematics learning ability, TPS
ANALISIS KEMAMPUAN KOMUNIKASI MATEMATIS SISWA DITINJAU DARI GAYA KOGNITIF REFLEKTIF IMPULSIF
Authors: Minrohmatillah Nilna
Published: October 2020

This research is aimed analyze how mathematical communication skills of students are reflective and impulsive cognitive style. This descriptive qualitative research is conducted using test method which has been adjusted to certain indicators. The subjects in this study were class students VII C in SMPN 1 Sumbergempol Tulungagung. The data analize with data reduction techniques, data presentation, and conclusion. The result shows that that students with reflective cognitive style are better at processing information and have mathematical communication skills better and superior to students with impulsive cognitive styles.

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Keywords: mathematics communication, reflective-impulsive
HASIL BELAJAR SISWA BERDASARKAN INTENSITAS KEGIATAN BRAIN GYM PADA PEMBELAJARAN MATEMATIKA
Authors: Agustina Winda , Wahyuni Sri
Published: October 2020

Learning is an effort to improve the self quality and the education quality. Observations show that students have difficulty concentrate on learning in full seen by the students themselves with their activities. Brain Gym activities to learning can help students' learning readiness factors. The purpose of this study was to find out how student learning outcomes with brain gym activities based on low intensity and high intensity in mathematics learning in class VIII of SMP Negeri 9 Banjarbaru. In addition, also to find out the differences in student learning outcomes based on the intensity of brain gym activities in mathematics learning. This study used a quantitative approach and uses a type of experimental research. The results showed that the learning outcomes of students using brain gym with low intensity were in sufficient qualification, high intensity brain gym was in good qualification, and there were differences in student learning outcomes based on the intensity of Brain Gym use in mathematics learning in class VIII of SMP Negeri 9 Banjarbaru.

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Keywords:brain gym, learning outcome
Pengaruh model pembelajaran Missouri Mathematics Project (MMP) terhadap kemampuan metakognisi siswa
Authors: Choridha Miftachul , Hariyani Sri , Farida Nur
Published: October 2020

Penelitian ini bertujuan untuk melihat apakah model pembelajaran MMP mempengaruhi kemampuan metakognisi siswa. Penelitian ini adalah penelitian kuantitatif dengan desain penelitian one shoot chase study. Populasinya seluruh siswa kelas IX SMP Negeri 2 Malang dengan sampel 1 kelas yaitu kelas IX-G yang berjumlah 32 siswa. Metode pengumpulan data yang digunakan untuk mengetahui kemampuan metakognisi siswa adalah dengan menggunakan data sekunder berupa hasil UTS dan data primer berupa tes berbentuk essay yang diberikan setelah penerapan model pembelajaran MMP. Hasil analisis data sekunder diperoleh dengan rataan 65,78 dan data primer diperoleh dengan rataan 77,97. Data dianalisis menggunakan uji T bantuan program SPSS 21.0 for windows. Berdasarkan uji T yang dilakukan diperoleh thitung> ttabel yaitu 7,043 > 1,697 dengan angka signifikansi sebesar 0,000 dan taraf signifikansi 0,05. Sehingga dari hasil tersebut dapat disimpulkan bahwa terdapat pengaruh model MMP terhadap kemampuan metakognisi siswa pada materi bangun ruang sisi lengkung di kelas IX SMP Negeri 2 Malang. Kemampuan metakognisi dapat meningkat dengan banyaknya latihan soal yang diberikan salah satunya dengan penerapan model pembelajaran MMP karena adanya tugas proyek. Dari hasil temuan ini peneliti merekomendasikan kepada guru agar model pembelajaran MMP dapat digunakan dalam kegiatan pembelajaran matematika.
Pengaruh self-esteem, self-regulation, dan self-confidence terhadap kemampuan pemecahan masalah matematika
Authors: Mashlihah Lenny Nuurotun , Hasyim Maylita
Published: October 2020

Penelitian ini bertujuan untuk menganalisis pengaruh self-esteem, self-regulation, dan self-confidence terhadap kemampuan pemecahan masalah matematika materi operasi bentuk aljabar pada siswa kelas VII SMP Negeri 1 Tugu tahun pelajaran 2017/2018.Penelitian ini menggunakan pendekatan kuantitatif dan jenis penelitiannya adalah penelitian asosiatif kausal. Penelitian ini mengg)unakan rancangan penelitian non eksperimen dengan metode survey dan tes. Populasi dalam penelitian ini seluruh siswa kelas VII SMP Negeri 1 Tugu yang berjumlah 220 siswa, sedangkan sampelnya adalah 96 siswa yang terbagi dalam 3 kelas dengan teknik pengambilan sampel cluster random sampling. Pengumpulan data dalam penelitian ini menggunakan angket dan tes. Analisis data menggunakan analisis regresi linier berganda. Berdasarkan hasil analisis diperoleh kesimpulan terdapat pengaruh yang signifikan antara self-esteem, self-regulation, dan self-confidencesecara simultan terhadap kemampuan pemecahan masalah matematika materi operasi bentuk aljabar pada siswa kelas VII SMP Negeri 1 Tugu tahun pelajaran 2017/2018. Model regresi berganda yang terbentuk adalah Y = -156,77 + 1,134 X1 + 0,486 X2 + 0.527X3, menunjukkan bahwa self-esteem, self-regulation, dan self-confidencememberikan pengaruh yang positif terhadap kemampuan pemecahan masalah matematika.
A STUDY OF RADIO FREQUENCY BLACKOUT FOR SPACE PROBE DURING ATMOSPHERIC REENTRY PHASE
Authors: Bendoukha Sidi Ahmed , Okuyama Kei-ichi , Szasz Bianca
Published: October 2020

During the re-entry flight, the radio signal will be interrupted, which is commonly referred to as the communications blackout. Once the plasma sheath forms in the stagnation region of a small space probe, the probe losses more than 70 percent of its downlink data. This shows that the attenuation of the radio signal is very high during the re-entry. When the probe enters the Earth’s atmosphere, the high velocity, high surface temperature and high plasma frequency cause a shock wave layer, which is the main cause of radio blackout. For other reason, the completely reflection of the electromagnetic wave at all communication lines. This study describes the theoretical and numerical study of radio communication during reentry. The paper defines an approach to end radio signal blackout occurring in the wake region and how to exactly solve the radio blackout problem using new methods as injection of coolants, the aerodynamic shaping reducing the concentration of electrons, using transceiver with high operating frequency or interaction of Static Magnetic Field (SMF). Data from OREX probe are used to prove the solution to the Radio Frequency (RF) blackout problem. The significance of the used SMF method is established by computing the reduction in plasma attenuation.
QUALITY OF LIFE AT WORK IN A PUBLIC MOTHER-CHILD CENTER IN SOUTHEASTERN BRAZIL
Authors: De Oliveira Lima Lucas Alves , De Carvalho Fonseca Elisama Angélica , Domingues Paulo Lourenço , Peixoto Karen Martins , Da Silva Caio Barros Gomes
Published: October 2020

The general objective of this research was to analyze the perceptions of public employees of a Mother and Child Center in the municipality of Paraíba do Sul/RJ about what is Quality of Life at Work (QLW) and the main positive and negative factors that affect quality of life in the unit. This is an exploratory survey of qualitative approach, where techniques of observation and structured interview were used through a questionnaire answered by ten employees. Through the results, it was possible to verify that the main perceptions about QLW are linked to good interpersonal relationships and well-being in the service. Regarding the positive aspects of the work, good relationships with colleagues were highlighted, while the negative elements were the lack of materials to perform the tasks and the high workload.
OCCURRENCE OF ELEPHANTIASIS IN NANDURBAR DISTRICT, OF (M.S), INDIA
Authors: Shaligram Ahirraon Indrarao
Published: October 2020

Elephantiasis is caused by parasite Wuchereria bancrofti transmitted through the bites of Culex pipiens, C. quinquefaciatus, C. fatigans, B.malayi, Aedes niveus in Andaman and Nicobar islands.mosquitoes. Diseased organisms body transmits the Wuchereria bancrofti to healthy person. Elephantiasis is also known as Filariasis.
POTENSI PEMANF AA T AN BIOHIDROGEN DAN BIOMET ANADARI POME UNTUK KETENAGALISTRIKAN P ADA ANALISIS PROTOTIPE 3 BIOHYTHANE KAP ASIT AS 1 M /HARI
Authors: Zuldian Prima
Published: October 2020

Perkembangan energi terbarukan berbasis biomassa semakin dibutuhkan mengingat melimpahnya komoditas biomassa di Indonesia khususnya kelapa sawit serta makin menurunnya cadangan sumberdaya berbasis fosil. Komoditas sawit menjadi salah satu produk perkebunan utama nasional dan menjadi produksi terbesar didunia hingga saat ini yang dimanfaatkan sebagian besar untuk kebutuhan pangan serta sejumlah kecil energi (Biodiesel). Proses ekstraksi T andan Buah Segar (TBS) kelapa sawit tersebut menghasilkan Palm Oil Mill Effluent (POME) dengan Chemical Oxygen Demand(COD) yang tinggi (35.000 ppm). Melalui fermentasi POME dua tahap dalam prototipe sistem 3biohytane berkapasitas 1 m berpotensi menghasilkan listrik dari biohidrogen dan biometana sebesar 5,691 kWe. Ditinjau dari sisi keekonomian, dengan investasi (CAPEX) sebesar US$ 27.559 dan biaya operasional (OPEX) sebesar US$ 1 1.263/tahun akan diperoleh Biaya Pokok Produksi (BPP) sebesar US$ 0,323/kWh, Power Purchase Agreement (PP A) sebesar US$ 0,503/kWh dan tarif penjualan listrik US$ 0,508/kWh. Perbandingan BPP dengan jenis pembangkit lain menunjukkan bahwa BPP yang dihasilkan dari prototipe sistem biohythane cukup kompetitif untuk mensubsitusi pemakaian minyak solar pada PL TD yang saat ini memiliki nilai BPP lebih tinggi. Kata kunci : kelapa sawit, POME, biohythane
Abundance, survival and population growth of killer whales Orcinus orca at subantarctic Marion Island
Authors: Jordaan Rowan K. , Oosthuizen W. Chris , Reisinger Ryan R. , Nico De Bruyn P. J.
Published: October 2020

Killer whales, Orcinus orca, are a cosmopolitan species with large ecological and demographic variation across populations. Population‐specific demographic studies are, therefore, crucial in accurately assessing the status and trends of local killer whale populations. Such studies require long‐term datasets and remain scarce, particularly in the Southern Ocean where detailed population specific studies have only been conducted at a single archipelago – Îles Crozet. Here, we analysed 12 years of capture–recapture data (comprising nearly 90 000 identification photographs taken from 2006 to 2018) of killer whales at subantarctic Marion Island (46°54′S, 37°45′E) to estimate the abundance, survival and growth rate of this population. Demographic parameters were estimated using multistate capture recapture models, and Pradel Survival‐Lambda and POPAN single‐state models implemented in the program MARK. Annual survival probability (0.98 [95% CI: 0.96–0.99]) was constant over time, and no important differences between sexes and age‐classes (calves, juveniles, adults) were found. This estimate of survival suggests a life expectancy of approximately 48 years. Realised mean population growth rate (λ) was 1.012 (0.987–1.037) with an estimated population size of 54 (54–60) individuals and a mean calving rate of 0.13 (0.06–0.20) calves born per year per reproductive female. The survival and reproduction rates of killer whales at Marion Island are similar to those of killer whale populations in the eastern North Pacific, Norway and Îles Crozet. However, subtle differences in survival and reproduction rates are present. These are likely the result of local differences in resource abundances, historical impacts on social structure and/or stressors. Also, the presence and scale of fisheries (legal and illegal) in the area may provide opportunities for direct interactions with fishing activities impacting survival and reproduction rates.
All forests are not equal: population demographics and denning behaviour of a recovering small carnivore in human modified landscapes
Authors: Twining Joshua P. , Montgomery W. Ian , Reid Neil , Marks Nikki , Tosh David G. , Scantlebury D. Mike
Published: October 2020

Landscapes occupied by recovering carnivore populations in Europe are highly modified by human activity. It is unclear how recovering predators will adapt and sustain populations in highly altered landscapes, with most existing research focused on large carnivores. To address this we contrast population demographics and denning behaviour of a small carnivore, the pine marten Martes martes, in a semi‐natural wooded landscape and a human‐modified landscape with limited forest cover composed of conifer plantation, using radio‐telemetry on 20 free‐ranging individuals in Northern Ireland. In the semi‐natural landscape, martens selected old growth, native forest making almost exclusive use of arboreal dens in living trees and standing deadwood. Martens persisted in the human‐modified landscape but with lower population density and recruitment, with a male‐biased sex ratio. In the human‐modified landscape martens denned in marginal habitats such as scrub, heath and property boundaries, while making use of subterranean or man‐made structures for dens in response to a lack of above ground denning opportunities. We demonstrate landscape change‐induced differences in behaviour and population structure in a recovering carnivore. The results highlight the importance of evaluating the availability of denning sites in carnivore conservation and provide valuable management considerations, key to mitigating human–wildlife conflict as carnivores continue to recover and recolonise Europe.
Applying Board Race Game to Increase Students’ Vocabulary Mastery in Uttayan Suksa Krabi School, Thailand
Authors: Octaviani Risa , Handayani Ika , Hamer Welliam
Published: October 2020

The aim of this research was to know the increase of students’ vocabulary mastery by using board race game for fifth grade students of Uttayan Suksa Krabi School, Thailand in the academic year 2018/2019. The method used in this research was collaborative classroom action research. The researchers conducted this research from December 2018 until March 2019 in Uttayan Suksa Krabi School, Thailand. In collecting the data, the researchers used observation, test, and documentation. The tests were given in pre-test, post-test 1 and post- test 2. The researchers analyzed the average score of each test to find out the increase of students’ vocabulary mastery after the action was conducted. After the researchers have conducted the action, the students’ vocabulary mastery has increased optimally. It could be seen from the score of pre-test that showed 55.3, post-test 1 was 68.6, and post-test 2 was 85.6. After applying the action, the researchers were able to solve the problem in increasing students’ vocabulary mastery. The students were able to pronounce, memorize and understand the words based on the context. By using Board Race game in teaching vocabulary, the students could easily understand and memorize the spelling of the new vocabulary. In the teaching process, when the researcher as teacher used game, the students were enthusiastic and enjoyed during teaching learning process. It can be concluded that board race game can increase students’ vocabulary mastery. It is suggested to use board race game as the alternative media in teaching learning English.
Karl Abraham: Leben und Werk
Authors: Bentinck van Schoonheten Anna
Published: October 2020

Karl Abraham war der erste Psychoanalytiker Deutschlands und Gründer der Berliner Psychoanalytischen Vereinigung, die bis zur Übernahme der Nazis 1933 international führend war. Anna Bentinck van Schoonheten gelingt es mit beeindruckender Recherche und unter Einbezug auch bisher unbekannter Dokumente, den Menschen Karl Abraham zum Leben zu erwecken.

Die Biografin beschreibt Abrahams persönliche Rolle als Leiter der Berliner Vereinigung und im »Geheimen Komitee« Freuds. Sie zeigt seinen Einfluss auf die theoretischen Leistungen seiner heute namhaften Analysanden, unter denen sich Karen Horney, Helene Deutsch, Edward Glover und Melanie Klein finden. Bis zu seinem vorzeitigen Tod entwickelte Abraham anhand klinischer Befunde und seiner eigenen Lebensgeschichte herausragende Beiträge zur Psychoanalyse – so erkannte er den Ursprung von Depressionen in der oralen Phase und wies den Weg zur Objektbeziehungstheorie.
Zwischen den Kulturen
Authors: Hieber Lutz , Machleidt Wielant
Published: October 2020

Die Voraussetzung für angemessene Integrationshilfe ist die Kenntnis interkultureller Unterschiede. Menschen eines Kulturraumes verfügen über Gemeinsamkeiten: ihre Persönlichkeitsstruktur, ihr Habitus, ist geprägt durch gemeinsame Sozialisationsprozesse. Ein außereuropäischer Habitus kann gravierende Unterschiede zum europäischen aufweisen – und somit auch die Lebenschancen in Deutschland bestimmen.

Doch verinnerlichte Muster sind durchaus nicht in Beton gegossen. Migration ist ein starker Stimulus für die Persönlichkeitsentwicklung – vergleichbar mit der Adoleszenz. Denn gleich welchen Alters wird ein Wandel der Identität in eine bikulturelle Dimension in den nächsten Jahrzehnten für die gesellschaftliche Entwicklung, für ein gutes Leben in der deutschen Kultur entscheidend sein.

Lutz Hieber und Wielant Machleidt thematisieren dazu Verständnishintergründe, erörtern praktische Handlungskompetenzen und werben für die Kenntnis von Grundlagen interkultureller Kommunikation.
Jugend im Risiko
Authors: Förster-Chanda Usha
Published: October 2020

Der Übergang von der Schule in den Beruf ist für Jugendliche in der Benachteiligtenförderung besonders riskant. Das Projekt »Jugend im Risiko« öffnet diesen jungen Menschen einen niedrigschwelligen Zugang zu psychosozialer Beratung. Usha Förster-Chanda stellt anhand des Projekts Ursachen und Folgen schwacher Bildungsabschlüsse im Hinblick auf die Persönlichkeits- und Identitätsentwicklung von jungen Menschen dar. Sie ermittelt, welche therapeutischen Hilfen erforderlich sind und wie diese vernetzt werden müssen, damit die Identitätsentwicklung von Jugendlichen effektiv gefördert werden kann.

Ziel eines solchen klinischen Beratungsangebots sollte es sein, die medizinisch-psychotherapeutische Beratung mit pädagogischer Förderung zu verbinden, da persönliche und berufliche Identitätsentwicklung in dieser Altersphase und bei dieser Gruppe besonders eng miteinander verschränkt sind. Soziale Benachteiligung hat nicht nur Auswirkungen auf den Bildungserfolg, sondern wirkt sich auch nachteilig auf die Lebenszufriedenheit und Identitätsentwicklung aus.
Der Schattenvater
Authors: Müller Christine
Published: October 2020

Mithilfe genetischer Testverfahren lässt sich der biologische Vater heute eindeutig feststellen. Gut gehütete Geheimnisse und tabuisierte Familienkonstellationen kommen so ans Licht. Welche Folgen das für die Identität sogenannter »Kuckucks-« und »Spenderkinder« hat, untersucht Christine Müller.

Anhand von Interviews geht die Autorin folgenden Fragen nach: Wie wirkt sich eine verschwiegene Vaterschaft unbewusst auf das Familiensystem aus? Welche Hintergründe führten zur Aufdeckung der Wahrheit? Wie gehen Betroffene mit der Erkenntnis um, dass biologischer und sozialer Vater nicht ein und dieselbe Person sind? Wie integrieren Kinder das Wissen um den anderen Vater in ihr Leben? Welche Unterschiede zeigen sich in den Entwicklungsverläufen von Kuckucks- und Spenderkindern?
Higher Public School as Space for Third-Age Person’s Self-Actualization
Authors: Gordina Olga Vasilevna , Gordin Aleksandr Innokentevich
Published: October 2020

The paper aims to identify psychological and pedagogical conditions promoting a third-age person’s self-actualization in Higher Public School educational space. The authors describe the basic approaches to defining the concepts “self-actualization”, “third age”, clarify the essence of the notion “Higher Public School”, reveal socio-psychological, pedagogical and social effects of andragogic interaction between subjects of educational space. Scientific originality of the study includes developing an organizational and methodological basis of third-age education focused on self-actualization, taking into account modern trends in adult education. The research findings are as follows: relying on empirical research results, the authors justify importance of third-age education for a personality’s self-actualization, reveal psychological and pedagogical conditions of educational process organization and substantiate its optimal model - Higher Public School.
Innovative Network Activity to Approve the Udmurt Language Electronic Textbooks for Secondary School: Relevance and Actuality
Authors: Bayteryakova Julia Tikhonovna , Botalova Nadezhda Prohorovna
Published: October 2020

The research objective includes estimating efficiency of innovative network grounds to approve the Udmurt language electronic textbooks for pupils of the 5th-9th grades. The article describes the basic stages of innovative network activity, analyses the functional potential and content of electronic textbooks in terms of their conformity with the Federal State Educational Standards requirements, justifies efficiency of using electronic textbooks when teaching a native language, reveals their contribution to forming informational and communicative competence of teachers and students. Scientific originality of the study involves evaluating efficiency of electronic textbooks when teaching the Udmurt language. The analysis of innovative network activity indicates that the Udmurt language electronic textbooks for secondary school have a high educational potential and can be efficiently introduced into educational process.