bluuebunny/crossref_metadata_2025 huggingface dataset:
How to Identify Tsunami Prevention Zones: A Case Study of Putuoshan Island in China
Authors: Hou Jingming , Wang Juncheng , Wang Peitao , Ren Zhiyuan
Published: March 2022

Tsunamis can cause massive damage and loss of life in coastal areas. This study uses Putuoshan Island as a case study to discuss ways to identify tsunami prevention zones based on the analysis of physical factors such as inundation, maximum wave amplitude, and tsunami flow. The tsunami prevention zones of Putuoshan Island consist of land areas and marine areas. Our analysis identified two inundation areas in the western and southern Putuoshan Island as tsunami prevention zones. In the coastal waters, the maximum velocity of the tsunami flow is 8.3 m/s. With the exception of the western waters, the coastal waters of Putuoshan Island are also identified as tsunami prevention zones. The tsunami flow impact is greater in the waters of north and south Putuoshan Island. The results of this study could be used by emergency departments to take protective measures and thus to prevent the disastrous effects of tsunamis.
Dermatofibrosarcoma protuberans im Kindes- und Jugendalter : primäre Erkrankung und Rezidiv
Authors:   , Krewer Julia Katharina
Published: March 2022

Das Dermatofibrosarcoma protuberans (DFSP) ist ein seltenes fibroblastisches Weichteilsarkom. Bisher ist wenig über die optimale Therapie des primären und insbesondere des rezidivierten DFSP im Kindes- und Jugendalter bekannt. Zudem gibt es sehr wenig klinische Daten über das fibrosarkomatöse DFSP (FS-DFSP) bei pädiatrischen Patienten, welches eine intermediär maligne Variante des DFSP darstellt. Die vorliegende Studie untersuchte das Dermatofibrosarcoma protuberans im Kindes- und Jugendalter im Hinblick auf die Therapie und Prognose der primären Erkrankung und bei Rezidiven. Es wurden Daten von 40 Patienten mit DFSP, welche im Zeitraum von 1996 bis 2016 in der Cooperativen Weichteilsarkomstudiengruppe (CWS) prospektiv registriert wurden, retrospektiv analysiert. Zusätzlich wurde die Therapie und der Verlauf von 3 Patienten mit der Diagnose eines FS-DFSP beschrieben. Alle Patienten erhielten vorrangig eine chirurgische Tumorresektion. Eine sekundäre Resektion erfolgte bei 18 Patienten nach unvollständiger oder grenzwertig vollständiger primärer Resektion. Insgesamt konnte bei 85% (n = 34/40) eine mikroskopisch vollständige chirurgische Resektion (R0) in der besten Resektion erreicht werden. Alle Patienten konnten eine komplette Remission nach der primären Erkrankung erreichen und das 5-Jahres Gesamtüberleben war 100% (± 0; CI, 95%). Die R0-Resektion (IRS I) stellte einen signifikanten Faktor für die Prävention eines Rezidivs dar. Ein lokales Rezidiv trat nach einem Median von 1,1 Jahren bei insgesamt 15% (n = 6/40) der Patienten auf und wurde durch erneute chirurgische Resektion behandelt. Darunter konnten alle Patienten eine komplette Remission erreichen. Zwei von 3 Patienten mit einem FS-DFSP überlebten nach einer R0-Resektion in kompletter Remission. Zusammenfassend konnte gezeigt werden, dass das DFSP eine gute Prognose bei pädiatrischen Patienten hat. Der wichtigste prognostische Faktor für die Prävention von Rezidiven ist eine mikroskopisch vollständige chirurgische Resektion. Im Falle eines Rezidivs oder dem Vorliegen eines FS-DFSP sollte ebenfalls eine vollständige chirurgische Resektion angestrebt werden.
Fertile Intersectional Hybrids of 4x Andean Blueberry (Vaccinium meridionale) and 2x Lingonberry (V. vitis-idaea)
Authors: Ehlenfeldt Mark K. , Polashock James J. , Rowland Lisa J. , Ogden Elizabeth , Luteyn James L.
Published: March 2022

Vaccinium meridionale (section Pyxothamnus), a tetraploid species native to higher-altitude locations in Jamaica, Colombia, and Venezuela, is of interest to Vaccinium breeders for its profuse, concentrated flowering, vigor, and monopodial plant structure, all of which may be useful in breeding for mechanical harvest in blueberry. In this study, tetraploid V. meridionale was successfully hybridized as both female and male with 2x Vaccinium vitis-idaea (section Vitis-idaea, lingonberry). The resultant F1 hybrids with lingonberry were both 3x and 4x, respectively. These hybrids were intermediate in morphology and notably vigorous. Most appear to be evergreen, with small, red-colored fruit. The 4x F1 hybrids displayed good fertility as females in backcrosses to both lingonberry and V. meridionale. Pollen production and quality were evaluated as an indicator of male fertility. Most clones had good pollen shed and high frequencies of well-formed tetrads. The overall fertility suggests that these hybrids, despite being derived from intersectional crosses, might be conventionally used for breeding without substantial difficulty.
Random quench predicts universal properties of amorphous solids
Authors: Shimada Masanari , De Giuli Eric
Published: March 2022

Amorphous solids display numerous universal features in their mechanics, structure, and response.
Current models assume heterogeneity in mesoscale elastic properties, but require fine-tuning in order to quantitatively explain vibrational properties. A complete model should derive the magnitude and character of elastic heterogeneity from an initially structureless medium, through a model of the quenching process during which the temperature is rapidly lowered and the solid is formed. Here we propose a field-theoretic model of a quench, and compute structural, mechanical, and vibrational observables in arbitrary dimension d. This allows us to relate the properties of the amorphous solid to those of the initial medium, and to those of the quench.
We show that previous mean-field results are subsumed by our analysis and unify spatial fluctuations of elastic moduli, long-range correlations of inherent state stress, universal vibrational anomalies, and localized modes into one picture.
NMR Relaxometry Applied to Chemical Studies of Paramagnetic Metal Cation Complexes: Fundamentals and Applications
Authors: Kock Flávio , Colnago Luiz
Published: March 2022

Low field time-domain nuclear magnetic resonance (TD-NMR) relaxometry of paramagnetic metal cations (PMC) has been widely used to study and improve contrast agents for magnetic resonance imaging (MRI). However, despite its remarkable potential, TD-NMR is rarely used to study PMC complexes, and coordination compounds in non-biomedical application. Therefore, this review aimed to provide comprehensive information not only to non-nuclear magnetic resonance (NMR) relaxation specialists, but also to scientists from distinct levels and expertise, as a way to pave the path for modern analytical and research of PMC complexes. Some fundamental concepts about NMR, paramagnetic relaxation mechanism, as well as traditional and modern methods to measure the longitudinal (T1) and transverse (T2) relaxation times constants are addressed. Here, we address some applications in analytical, electrochemical, and inorganic chemistry, electrodeposition reactions, as well as studies on PMC complexes and coordination compounds in solution.
Quanto vale o trabalho do(a) professor(a)?
Authors: Flôres Taís , Gil Natália
Published: March 2022

O presente artigo apresenta análise histórica acerca da carreira e da remuneração de professores no município de São Sebastião do Caí/RS entre os anos de 1932 e 1964. Como fontes documentais para o estudo, foram mobilizados livros contendo registro de pagamentos realizados a funcionários da municipalidade caiense e a legislação municipal. Em diálogo com a literatura de referência no campo da História da Educação, a análise evidencia permanências no que se refere à desvalorização docente. O exame das fontes aponta aspectos importantes quanto à forma de ingresso e saída da profissão docente, as diferenças de classificação e remuneração dos professores em atuação nas escolas do município e, ainda, a comparação com valores recebidos por outros trabalhadores no mesmo município naquele período. Também, apresenta-se a análise referente ao vencimento recebido pelos docentes municipais no comparativo com o salário mínimo nacional, incluindo-se a equiparação das jornadas semanais de trabalho.
A Pedagogia da Alternância e a Psicologia Histórico-Cultural de Lev Vigotski
Authors: De Carvalho Pereira Wellington , Rego Teresa Cristina
Published: March 2022

O presente artigo tem como objetivo analisar possíveis correspondências aproximativas entre os princípios fundamentais que sustentam a metodologia da Pedagogia da Alternância, com os fundamentos da psicologia histórico-cultural de Lev Semionovich Vigotski, especialmente no que tange à noção de vivência (perejivanie) e de signos culturais como mediadores das internalizações e formação das funções psíquicas superiores. Fomenta-se tal empreitada a escassez de trabalhos nessa direção. Para tanto, fundamenta-se a argumentação por meio da revisão bibliográfica que tratam dos respectivos temas a partir de uma abordagem analítica qualitativa-reflexiva. Com esse propósito, no encadeamento do texto, primeiramente contextualiza-se a Pedagogia da Alternância, assim como apresenta-se algumas das principais características da Psicologia Histórico-Cultural. Em seguida apresenta-se algumas possíveis aproximações, para concluir com a apresentação de aspectos de diferentes teorias educacionais libertárias que também se aproximam das duas perspectivas em análise.
Editorial
Authors: De Araújo Marta Maria
Published: March 2022

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Sevoflurane Ameliorates Schizophrenia in a Mouse Model and Patients: A
Pre-Clinical and Clinical Feasibility Study
Authors: Lin Chuansong , Ma Daqing , Song Xingrong , Zhao Tianyun , Shi Ziwen , Ling Nongxi , Qin Jingwen , Zhou Quancai , Wu Lingzhi , Wang Yuansheng
Published: March 2022

Background:

GABAergic deficits have been considered to be associated with the pathophysiology
of schizophrenia, and hence, GABA receptors subtype A (GABAARs) modulators, such
as commonly used volatile anesthetic sevoflurane, may have therapeutic values for schizophrenia.
The present study investigates the therapeutic effectiveness of low-concentration sevoflurane in
MK801-induced schizophrenia-like mice and schizophrenia patients.

Methods:

Three weeks after MK801 administration (0.5 mg kg-1, i.p. twice a day for 5 days), mice
were exposed to 1% sevoflurane 1hr/day for 5 days. Behavioral tests, immunohistochemical analysis,
western blot assay, and electrophysiology assessments were performed 1-week post-exposure.
Ten schizophrenia patients received 1% sevoflurane 5 hrs per day for 6 days and were assessed with
the Positive and Negative Syndrome Scale (PANSS) and the 18-item Brief Psychiatric Rating Scale
(BPRS-18) at week 1 and week 2.

Results:

MK801 induced hypolocomotion and social deficits, downregulated expression of
NMDARs subunits and postsynaptic density protein 95 (PSD95), reduced parvalbumin - and
GAD67-positive neurons, altered amplitude and frequency of mEPSCs and mIPSCs, and increased
the excitation/inhibition ratio. All these changes induced by MK-801 were attenuated by sevoflurane
administration. Six and eight patients achieved a response defined as a reduction of at least 30% in
the PANSS total score at 1st and 2nd week after treatments. The BPRS-18 total score was found to be
significantly decreased by 38% at the 2nd week (p < 0.01).

Conclusion:

Low-concentration sevoflurane effectively reversed MK801-induced schizophrenialike
disease in mice and alleviated schizophrenia patients’ symptoms. Our work suggests sevoflurane
to be a valuable therapeutic strategy for treating schizophrenia patients.
ModK: Formula for Determining the Best Season and Career of a Football Player by Objective Indicators
Authors: Salvador Emanuel Pericles , de Menezes Santos Denilson , Bezerra Sonny Allan Silva
Published: March 2022

Introduction:

Football is a team sport, but the idol or best football player of the moment or any time is a common pursuit within the sports community. Different strategies are applied in order to find out the top player. The aim of this study is to introduce an objective proposal for the career measurement of football players.

Methods:

A total of 50 players ranked the best of the 21st century, and 14, ranked the best of the 19/20 season of European and world football, had their careers and seasons measured through a formula named ModK. Descriptive statistics characterized the careers and seasons. The Pearson's Correlation Coefficient test was used for the variables used in the formula with the reference ranking, and ModK was performed to measure the strength of association of the rankings.

Results:

The values of the scores obtained by the ModK formula showed moderate correlation (r=0,416) with the reference ranking. All variables used in the formula showed higher correlations with the ranking Modk formula when compared to the reference ranking.

Conclusion:

The ModK formula is proven to be effective in evaluating the career or full season of football athletes in an exclusively objective manner, presenting an acceptable correlation with a ranking created by experts.
Meningkatkan kemandirian belajar peserta didik sekolah dasar menggunakan Model SOLE saat pandemi Covid-19
Authors: Firdaus Fery Muhamad , Pratiwi Nirmala Arum , Riyani Sri , Utomo Jatmiko
Published: March 2022

Pelaksanaan program belajar dari rumah (BDR) jenjang sekolah dasar pada masa pandemi Covid-19 tidak lepas dari permasalahan. Salah satunya, peserta didik belum menunjukkan kemandirian belajar. Hal ini juga muncul pada peserta didik kelas IV SD Negeri Sleman V, untuk itu perlu dilakukan penelitian tindakan kelas untuk meningkatkan kemandirian belajar mereka. Tindakan yang dipilih ialah menerapan model pembelajaran SOLE (Self Organized Learning Environment). Penelitian ini berupa penelitian tindakan kelas dengan model milik Strange yang dilaksanakan dalam dua siklus. Instrumen penelitian yang digunakan berupa angket yang memuat sembilan indikator kemandirian belajar untuk peserta didik dengan reliabilitas 0.87 dan berjumlah 23 butir pernyataan. Analisis data menggunakan teknik deskriptif komparatif, yakni membandingkan persentase ketuntasan dan rerata kemandirian belajar peserta didik pada Siklus 1 dengan Siklus 2. Hasil dari tindakan menunjukan model SOLE dapat meningkatkan kemandirian belajar peserta didik kelas IV SD Negeri Sleman V. Hal tersebut ditunjukkan pada peningkatan presentase peserta didik dengan kemandirian belajar kategori baik pada Siklus 1 sebesar 61,3 % menjadi 77,4% pada Siklus 2.
Peningkatan kedisiplinan melalui metode reward and punishment pada Siswa Kelas 2 SDN Keputran
Authors: Kurniawati Kurniawati
Published: March 2022

Penelitian ini bertujuan untuk meningkatkan disiplin belajar pada peserta didik kelas IIC SD Negeri Keputran 2 Yogyakarta menggunakan metode pembelajaran reward dan punishment. Jenis penelitian ini adalah penelitian tindakan kelas dengan model Kemmis dan Taggart yang dilaksanakan dalam empat tahap yaitu tahap perencanaan, pelaksanaan, observasi dan refleksi. Subjek dalam penelitian ini adalah peserta didik kelas IIC SD Negeri Keputran 2 Yogyakarta sejumlah 28 peserta didik. Objek dalam penelitian ini adalah aktivitas peserta didik berupa disiplin belajar. Rata-rata nilai pra tindakan adalah 4,5. Teknik pengumpulan data menggunakan observasi dan angket. Instrumen yang digunakan adalah lembar observasi aktivitas peserta didik dan guru serta lembar angket. Analisis data dilaksanakan dengan deskriptif kuantitatif dan kualitatif. Hasil penelitian menunjukkan bahwa penggunaan metode pembelajaran reward dan punishment dapat meningkatkan disiplin belajar pada peserta didik kelas IIC SD Negeri Keputran 2 Yogyakarta. Disiplin belajar melalui metode pembelajaran reward dan punishment peserta didik kelas IIC SD SD Negeri Keputran 2 Yogyakarta mengalami peningkatan dari siklus I sebesar 63% menjadi 72% pada siklus II.
Analysis of Cadmium Metal in Facial Moisturizing Cream with Atomic Absorbtion Spectrophotometry Method
Authors: Ardhya Hilda , Wardah Annisa Chiyarotul , Rachmawati Pipit
Published: March 2022

This study aims to determine the concentration of cadmium (Cd) metal content in various facial moisturizing creams with atomic absorbtion spectrophotometry (AAS). Samples were analyzed in the form of 6 brands of facial moisturizer cream that sold in market and selected randomly. The cream samples were destructed by wet destruction method. Next, the samples of destruction result were analyzed by atomic absorbtion spectrophotometry method with wavelength about 228.8 nm to determine the concentration of cadmium.  The results of this research showed that there was cadmium (Cd) metal content in the 2 samples of facial moisturizing cream that analyzed. Cadmium metal concentration on brand A is 0.1389 ± 2.7817 x 10-3 ppm and and brand B is 0.1321 ± 2.6468 x 10-3 ppm. Based on this result, the moustirizing creams are safe to use due to the BPOM regulation
Utilization of Natural Coagulant Substance (Tamarind and Winged Bean Seed) on the Quality of Tofu Wastewater in Muntilan, Magelang
Authors: Elpani S. E. , Gunawan M. J. , Aviventi E. , Sabila R. A.
Published: March 2022

The aim of this study is to determine the effect of various mass in tamarind and winged bean seeds on pH, TDS, and COD in tofu factory wastewater. The research was conducted at the Chemistry Research Laboratory of FMIPA UNY in December 2018.  The results showed that the addition of various mass in tamarind and winged bean seeds as much as 7, 9, and 11 grams of tofu factory wastewater had an effect on pH which increased from the initial condition of 2.5 to 2.6; 2.7; 2.8 in tamarind seeds, and 2.8; 2.9; 3.0 on winged beans. The COD test increased from the initial condition of 6619.20 mg / L to 7312, 64; 7880, 00; 8195.20 mg / L in tamarind seeds, and 9140.80; 10464.64; 9329.92 mg / L in winged bean seeds which have decreased again in the addition of 11-gram coagulant substance mass. TDS test has increased from the initial conditions of 1512 mg / L to 1715; 1736; 1848 mg / L in tamarind seeds, and 1890; 1988; 1855 mg / L in winged bean seeds.
The Effect of Activators againts the Ability of Active Charcoal from Nila Fish (Oreochromis niloticus) to Adsorp Cd(II) and Pb(II) Ions
Authors: Santi M. T. , Banihabib I. , Isnaningrum M. , Miranda I. B.
Published: March 2022

The purpose of this research is to how to make the active charcoal of Nila fishbone and to know effect of the variety activators against the ability of charcoal from nila fishbone waste in absorbing Cd(II) and Pb(II) ions. This research included in the experimental research. Active charcoal making process through 5 stages, namely: sampling, sample processing, the process of carbonation, the activator, and the process of neutralization. Sampling (Nila fishbone) in the restaurant, sample processing in the form of a fishbone drying in the sunshine, the process of carbonation by injecting bone for the furnace and sifted using a mess. The process of with activator HNO3 and HCl, also neutralization by making active charcoal to a neutral pH. Then, specify a contact time of 30, 60, and 90 minutes. The filtrate is further tested by Atomic Absorption Spectrophotometer (AAS) tool to know the adsorption of lead and cadmium ions. The results showed effect of HCl activator on Cd2+ and Pb2+ ions is more effective than HNO3 activator.
Investigation of Structure and Magnetic Properties of Polycrystalline La0.7Ba0.21Ca0.09Mn1-xNixO3 (x=0.1, 0.2, 0.3) by Sol Gel Method
Authors: Prasetyo P.
Published: March 2022

Polycrystalline La0,7Ba0,21Ca0,09Mn1-xNixO3 (x = 0,1; 0,2; 0,3) have been synthesized using sol-gel method, the precursors material from pro analysis products. Samples had characterized by XRD, SEM, and VSM. The result of refinement from XRD pattern shown that all materials had single phase with the lattice parameter a and b had decreased with increasing Ni+3 ion and had a rhombohedral structure along with R-3c space group. The materials had nanoparticle distribution particle size based on measurement by SEM. Hysteresis loop shown that the samples La0,7Ba0,21Ca0,09Mn1-xNixO3 (x = 0,1; 0,2; 0,3) are soft magnetic material. Moreover, the increase of Ni+3 ion gave an impact about the magnetization decreasing from the materials which shown by the decreasing of magnetic saturation value.
Synthesis and Characterization of Montmorillonite Membrane for Nickel and Zink Metals Filtration in Electroplating Liquid Waste
Authors: Hidayah I.
Published: March 2022

The application of ceramic membrane technology has been applied in water treatment. The montmorillonite used was analyzed by XRD and showed typical montmorillonite peaks at 2θ 7.49o, 28.07o, 35.75 o, 40.73o, 49.14o dan 67.03o. Montmorillonite membrane was made by the process of dry pressing.PVA in montmorillonite is expected to function as a binder agent. The result variation on PVA composition 0%, 1%. 2%, 3% and 4%, show the flux value that increased with the adition of PVA composition. The montmorillonite membrane with a 4% PVA composition a result greatest flux and porosity values compared to other compositions. The resulting flux value is 1596.5679 L/m2.h and porosity 20.9477%. SEM-EDXtest result showed montmorillonite membrane is a porous membrane that is spread and evenly distributed but the resulting pore is not uniform. Montmorillonite membrane rejection of nickel metal was 55.5352% dan zink metal was 37.8614% with a 40-minute filtration process.
Antioxidant Activity Testing of Extract Kweni Peel (Mangifera odorata Griff)
Authors: Lestari Yolanda Dwi , Permatasari Suci , Oktasari Ade
Published: March 2022

This research aims to test the antioxidant activity of extract kweni peel (Mangifera odoratta Griff). The antioxidant testing was performed by maceration using the solvents of n-hexane and ethanol 96% after that it was fractioned using ethyl acetate solvent. The phytochemical tests yield positive results from ethyl acetate extract were flavonoids and tannins. The antioxidant testing was carried out using the DPPH method (2,2, diphenyl-1-picrylhydrazyl) based on the inhibition concentration test parameters (IC50). The result showed that the antioxidant activity (IC50) found to be 169.43 µg/mL which was classified as moderate antioxidant activity intensity. Therefore, it can be concluded that the extract of kweni peel (Mangifera odoratta Griff) has potential antioxidant activity that could be used as an inhibitor of free radicals.
The circumstances of literacy numeracy skill: Between notion and fact from elementary school students
Authors: Rakhmawati Yeni , Mustadi Ali
Published: March 2022

Literacy activities in Indonesia are intensively developed to form literate citizens. Literacy is defined as a basic ability to develop individual potential in achieving goals. One of the literacies developed is numeracy literacy, which was coined in 2017. Numerical literacy is a branch of mathematical literacy. This ability guides individuals to recognize the role of numeracy competencies in everyday life. The knowledge of numeracy literacy is an urgent need for students. The student at least has received numeracy literacy development. This study aims to describe numeracy literacy in the field and compare numeracy literacy targets with reality in the area. The research method is descriptive quantitative. The data collection technique used a test with a research instrument of numeracy literacy skills and used non-test data, namely observation, and open interview guidelines. The research findings show that the students' numeracy literacy skills are still in the poor category. Numeracy literacy has not been developed in the implementation of the Gerakan Literasi Sekolah (GLS). Basic literacy activities have not been implemented properly.
Development of natural science supplement books based on local wisdom in integrative thematic learning in the elementary schools
Authors: Aji Ifan Anom Bintoro , Pujiastuti Pratiwi
Published: March 2022

The purpose of this study was to develop a natural science supplement book based on local wisdom in thematic-integrative learning in the fourth grade of elementary schools. This study uses Research and Development of the Dick and Carey model. The research data were obtained through observation, interviews, and questionnaires. The results of the feasibility of a local wisdom-based science supplement book were obtained through a product assessment questionnaire for material experts, media experts, linguists, and classroom teachers. While the trial results were obtained through a response questionnaire given to 58 fourth-grade elementary school students. The results of the validators show that the science supplement book is very feasible from the assessment of the material aspects with an average of 86.33%, the media aspect is also considered very feasible with an average of 91.63%, while the language aspect is considered feasible with an average of 76.67%. The results obtained from practitioners also get very feasible criteria with an average of 87.06%. The results of small-scale trials obtained an average of 100% and the results of large-scale trials obtained an average of 97,08% with very good criteria. Based on these results, the local wisdom-based science supplement book is very suitable for fourth-grade elementary school teachers in thematic-integrative learning.
The development of multicultural education comics to embed tolerance character for 4th grade of elementary school
Authors: Anggito Albi , Sartono E. Kus Eddy
Published: March 2022

This research aims to produce a comic book that can be used to embed the character of tolerance to the students of 4th grade of elementary school. This research using development procedure from Borg and Gall includes seven steps procedure, they are research and information collecting, planning, developing a preliminary form of product, preliminary field testing, main product revision, main field testing, and operational product revision. The data resources were collected from interviews, observation, and questionnaires. Data analysis technique by quantitative descriptive statistics. Preliminary field tests involve three students and one class teacher. Main field tests involve twelve students and one class teacher. Final validation by material expert got an average score of 4.53, language expert got an average score of 4.50, and media expert got an average score of 4.25. The preliminary field-testing result got an average score of 4.50 in teachers and got an average score of 3.46 in students. The main field-testing result got an average score of 4.75 in teachers and got an average score of 4.74 in students. So, education comics can be used properly to embed tolerance characters in elementary school.
How elementary school teachers assess students’ psychomotor during distance learning?
Authors: Ambarwati Dewi , Herwin Herwin , Dahalan Shakila Che
Published: March 2022

Assessment of student learning is still carried out even at distance learning. This study aims to describe how elementary school teachers assess students' psychomotor during distance learning. This research is a qualitative research with the type of phenomenology. The subjects of this study were elementary school teachers, principals, parents, and students. The research data were collected using interview techniques and document studies. The data analysis technique used is interactive analysis through data collection, data condensation, data verification and drawing conclusions. The teacher begins the skills assessment by planning in advance. Planning begins with determining the competencies to be addressed, but the condition of the student's situation while at home is also a consideration for teachers in designing skills assessments. The implementation of the skills assessment is carried out through various platforms such as WhatsApp, Zoom, and Google Classroom. Teachers assess students' skills through photos and videos that students send on online platforms.
EVALUASI PELAKSANAAN PEMBELAJARAN DARING PADA KOMPETENSI KEAHLIAN DESAIN PEMODELAN DAN INFORMASI BANGUNAN DI SMK NEGERI 1 PURWOREJO
Authors: Gunawan Surya Budi , Prayitno Sutarto Hadi
Published: March 2022

Penelitian ini bertujuan untuk mengetahui tingkat keberhasilan pelaksanaan pembelajaran daring yang dilakukan oleh Kompetensi Keahlian Desain Pemodelan dan Informasi Bangunan di SMK Negeri 1 Purworejo. Jenis penelitian yang digunakan merupakan penelitian deskripsi kuantitatif. Teknik pengambilan data menggunakan metode angket yang diberikan kepada siswa dan guru. Subyek penelitian ini terdiri dari seluruh guru kompetensi keahlian DPIB yang berjumlah 20 orang dan 30 responden dari siswa yang menggunakan metode convenience sampling dari kelas XI DPIB A dan XI DPIB B. Hasil penelitian menunjukan bahwa skor pembelajaran daring yang diperoleh kompetensi keahlian Desain Pemodelan dan Informasi Bangunan SMK Negeri 1 Purworejo pada lima variabel adalah: (1) kemampuan guru dalam pembelajaran daring dengan skor Pembelajaran Daring (PD) 4,4; (2) tingkat kelayakan infrastuktur dengan skor PD 4,4; (3) dukungan manajemen dengan skor 4,68; (4) budaya kerja di sekolah dengan skor 4,54; (5) kemampuan siswa dalam pembelajaran daring dengan skor perolehan 4,08. Sehingga dapat disimpulkan bahwa pembelajaran daring pada Kompetensi Keahlian Desain Pemodelan dan Informasi Bangunan SMK N 1 Purworejo dalam kategori sudah berhasil melaksanakan pembelajaran daring.
PEDOMAN DESAIN TATA LETAK UNTUK BENGKEL PRAKTIK KERJA KAYU SMK
Authors: Saputro Rizki Adi , Hidayah Retna
Published: March 2022

Penelitian ini bertujuan untuk mengembangkan media buku pedoman tata letak pada bengkel praktik kerja kayu SMK. Metode penelitian ini menggunakan penelitian pengembangan Research and Development (RD).  Model pengembangan yang digunakan dalam penelitian menggunakan 4D (Four D) dikemukakan oleh Thiagarajan. Model ini terdapat empat tahapan yaitu: yaitu: pendefinisian (define), perancangan (design), pengembangan (develop), dan penyebaran (disseminate).  Instrumen penelitian yang digunakan berupa angket untuk mengetahui kelayakan media pembelajaran. Hasil penelitian pengembangan buku pedoman ini berupa prosedur pembuatan buku pedoman melalui tahap: pendefinisian (peneliti menganalisa kebutuhan buku pedoman), perancangan (peneliti mengumpulkan referensi materi dan menyusun buku pedoman), pengembangan (penilaian kelayakan buku pedoman berdasarkan analisis ahli materi memperoleh skor 4,63 dengan kategori sangat layak, ahli media memperoleh skor 4,77 dengan kategori sangat layak, serta hasil uji kelayakan oleh pengguna memperoleh skor 4,73 dengan kategori sangat layak), dan penyebarluasan (peneliti menyebarkan buku pedoman dengan memberikan kepada pihak SMK N 2 Pengasih satu buku cetak dan bentuk soft file agar dapat diperbanyak secara mandiri).
PENGEMBANGAN MODUL MENGGAMBAR ISOMETRI INSTALASI AIR BERSIH DAN AIR KOTOR PADA RUMAH TINGGAL SEDERHANA 2 LANTAI PADA MATA PELAJARAN KONSTRUKSI DAN UTILITAS GEDUNG UNTUK KELAS XII PROGRAM STUDI DESAIN PEMODELAN DAN INFORMASI BANGUNAN DI SMK MUHAMMADIYAH 3 YOGYAKARTA
Authors: Hibatullah Arfan , Nayono Satoto Endar
Published: March 2022

Tujuan penelitian ini adalah: (1) memahami dan melaksanakan cara penyusunan modul gambar isometri instalasi air bersih dan air kotor; (2) mengetahui kelayakan modul isometri instalasi air bersih dan air kotor. Metodologi dalam penelitian ini menggunakan pendekatan penelitian dan pengembangan model 4-D yang terdiri dari empat tahap, yaitu: define (pendefinisian), design (perencanaan), develop (pengembangan), disseminate (penyebarluasan). Hasil penelitian pengembangan modul ini adalah: (1) define, tidak tersedianya modul pembelajaran Konstruksi dan Utilitas Gedung, peserta didik terpaku pada guru; (2) design, terdapat empat pembahasan materi, modul tersusun dari tujuan pembelajaran, uraian materi, rangkuman, dan soal latihan; (3) development, saran yang didapat adalah (definisi utilitas bangunan dilengkapi, komposisi gambar dengan keterangan, dan ilustrasi menggunakan warna kontras dengan latar). Penilaian pada materi memperoleh skor 3,50 kategori sangat layak, penilaian media memperoleh skor 3,02 kategori layak, dan penilaian guru memperoleh skor 3,59 kategori sangat layak; (4) disseminate, penyerahan modul kepada guru KUG berupa softfile dan hardfile.
Uji Aktivitas Fraksi Metanol dan N-Heksan Kulit dan Kernel Biji Kebiul (Caesalpinia bonduc L.) sebagai Tabir Surya
Authors: Fitri Yani Dwi , Dirmansyah Rio
Published: March 2022

Penelitian ini bertujuan untuk menguji aktivitas tabir surya fraksi metanol dan n-heksan kulit dan kernel biji kebiul secara in vitro dengan menggunakan spektrofotometri UV-Vis. Uji aktivitas tabir surya ditentukan berdasarkan nilai sun protection factor (SPF) dari masing-masing fraksi kulit dan kernel biji kebiul. Hasil uji fitokimia ekstrak metanol kulit biji kebiul memiliki kandungan flavonoid, tanin, saponin dan steroid. Sedangkan kernel biji kebiul positif mengandung flavonoid, saponin dan steroid. Penentuan nilai SPF didasarkan pada persamaan Mansur menggunakan spektrofotometri UV-Vis dengan panjang gelombang 200-400 nm. Hasil pengujian menunjukan bahwa ekstrak metanol kulit biji kebiul memiliki aktivitas perlindungan ultra dengan nilai SPF secara berturut-turut pada konsentrasi 200, 400, 600, 800, dan 1000 ppm yaitu 5,4; 9,7; 14,0; 18,1 dan 19,8. Sedangkan ekstrak methanol kernel biji kebiul memiliki aktivitas perlindungan minimal dengan nilai SPF secara berturut-turut pada konsentrasi 200, 400, 600, 800, dan 1000 ppm yaitu 0,9; 1,4; 2,9; 2,4 dan 2,6. Dari hasil nilai SPF fraksi metanol memberikan aktivitas yang lebih baik dari pada fraksi n-heksan.Kata Kunci : Caesalpinia bonduc L.; Tabir Surya; SPF.
Aplikasi Dekomposisi Nilai Singular dan Transformasi Kosinus Diskrit untuk Perbaikan Kualitas Citra Satelit Landsat
Authors: Kurniasari Yori , Karyati Karyati
Published: March 2022

Citra landsat (land satellite) merupakan data citra area daratan dan lautan di bumi. Data citra tersebut tersedia dalam Sistem Informasi Geografis (SIG). Banyaknya aplikasi SIG menyebabkan adanya perbedaan kualitas citra satelit landsat. Buruknya kualitas citra satelit yang diperoleh dapat menyusahkan beberapa pihak yang membutuhkan letak geografis dengan jelas. Oleh sebab itu, perlu dilakukan perbaikan kualitas suatu citra satelit. Pada penelitian ini menggunakan dua tahapan metode yaitu dengan transformasi kosinus diskrit dan dekomposisi nilai singular. Tahapan pertama dengan transformasi kosinus diskrit yang bertujuan untuk mengurangi gangguan dasar citra dengan membaginya menjadi beberapa komponen dasar. Tahapan kedua dengan dekomposisi nilai singular yang merupakan metode untuk mengekspos struktur citra sehingga dapat diketahui beberapa properti penting dari suatu matriks. Dengan kedua tahapan tersebut, dapat dilakukan proses perhitungan secara matematis dan aplikatif dalam proses perbaikan kualitas citra satelit. Hasil akhir dari penelitian ini berupa aplikasi perbaikan kualitas citra satelit landsat.Kata kunci: kualitas citra, citra landsat, transformasi kosinus diskrit, dekomposisi nilai singular
Penggunaan Shelter yang Berbeda terhadap Performa Udang Windu (Penaeus monodon) dengan Sistem Zero Water Discharge
Authors: Nuralim Nuralim , Rahim Rahim , Asni Asni
Published: March 2022

Penelitian ini  bertujuan untuk mengetahui pengaruh penggunaan shelter terhadap pertumbuhan dan kelangsungan hidup post Larva udang windu (Penaeus monodon) dengan sistem zero water discharge. Waktu pelaksanaan pada bulan Agustus-Oktober 2020. Rancangan percobaan yang dilakukan adalah Rancangan Acak Lengkap (RAL) dengan 3 perlakuan dan 3 kali pengulangan. Adapun perlakuan tersebut yaitu A= shelter ranting bakau, B= shelter pelepah pepaya, C= shelter ijuk.  parameter yang diamati pada penelitian ini adalah kelangsungan hidup, pertumbuhan bobot mutlak, laju pertumbuhan spesifik, rasio konversi pakan dan kualitas air. Hasil penelitian menunjukkan bahwa penggunaan shelter tidak berpengaruh nyata terhadap pertumbuhan dan dan kelangsungan hidup post larva udang windu yang dipelihara dengan sistem zero water discharge
Rancang Bangun Kalibrator untuk Sensor Kadar Air Tanah
Authors: Aulia Rahman Marlita , Rachmawardani Agustina , Sofwan Lukito Ibnu
Published: March 2022

Kadar air tanah merupakan salah satu unsur iklim yang diamati di BMKG (Badan Meteorologi Klimatologi dan Geofisika). Alat ukur kadar air tanah wajib dikalibrasi minimal 1 tahun sekali. Penelitian ini bertujuan membuat kalibrator untuk sensor kadar air tanah tersebut. Komponen yang digunakan yaitu sensor Profile Probe PR2/6, LCD 20×4, Arduino mega 2560, RTC DS3231, keypad 3x4, micro-SD card, dan adaptor sebagai catu daya. Hasil pengukuran dapat ditampilkan melalui LCD dan aplikasi pada PC (Personal Computer). Pengujian alat dilakukan dalam 4 tahap, yaitu uji komparasi, uji port alat, uji kinerja alat, dan uji tampilan PC. Hasil pengujian komparasi alat menunjukkan bahwa alat dapat beroperasi dengan baik dengan nilai simpangan baku dan ketidakpastian yang masuk dalam batas toleransi WMO sebesar ±5 %. Hasil pengujian lainnya yaitu pengujian port, pengujian kinerja alat, dan pengujian tampilan PC menunjukkan bahwa alat dapat bekerja dengan baik.
Uji Efektivitas Arang Aktif Daun Pandan Laut yang Diaktivasi dengan Natrium Hidroksida untuk Adsorpsi Ion Fe3+ secara Sistem Kolom
Authors: Sulistyani Sulistyani , Dwi Siswani Endang , Kristianingrum Susila , Fillaeli Annisa , Saputri Isnaini
Published: March 2022

Penelitian ini memaparkan daun pandan laut sebagai alternatif baru bahan untuk membuat arang aktif, serta identifikasi kemampuan adsorpsinya secara sistem kolom. Daun pandan laut mengalami proses pemanasan hingga menjadi arang, dilanjutkan dengan proses aktivasi kimia dengan menggunakan larutan natrium hidroksida 1% dan aktivasi fisika dengan dialiri gas karbon dioksida.  Arang aktif hasil sintesis dianalisis kondisi optimum adsorpsinya secara sistem kolom, yang meliputi massa arang aktif dan laju alir.  Selanjutnya pada kondisi optimumnya, diuji daya adsorpsi arang aktif terhadap ion Fe3+. Konsentrasi ion Fe3+ sebelum dan sesudah adsorpsi dideteksi dengan menggunakan spektrofotometer UV-vis, dengan menambahkan reagen tiosinat. Hasil penelitian ini menunjukkan bahwa semakin banyak massa adsorben yang digunakan, efisiensi adsorpsi semakin baik. Pada rentang massa 0,3-0,7 gram, efisiensi adsorpsi tertinggi arang aktif terjadi pada massa 0,7 gram, dengan nilai efisiensi adsorpsi ion Fe3+ sebesar 96,92%. Pada analisis laju alir diperoleh bahwa laju alir lambat menghasilkan daya adsorpsi yang lebih baik dibandingkan laju alir cepat. Laju alir terbaik larutan ion Fe3+ terjadi pada 0,2 mL/menit dengan nilai efisiensi sebesar 99,39%. Berdasarkan kondisi optimum tersebut dapat ditentukan daya adsorpsi adsorben terhadap ion Fe3+ sebesar 30,58 mg/g.
Optical Properties and Relative Determination of Caffeine in Black Tea Liquor
Authors: Rahardjo Monika , Karwur Ferry Fredy , Rondonuwu Ferdy Semuel
Published: March 2022

Caffeine is one of main quality parameter for teas, known for its ability to increase alertness, and has a slightly bitter flavor. As quality parameter, caffeine content will later determine flavor and aroma profile for teas that affect the price in global market. There were many factors that affected chemical compounds in tea, one of it was growth altitude. This research aimed to characterize caffeine spectra from tea liquor using UV-Vis visible which later can be used to relate caffeine content with the altitude of tea sample plantation. The optical transition of caffeine from brewed tea leaves liquor was measured from a variety of black tea products produced according to quality standards for global market. A total of 63 tea samples from four different grades (FANN, PekoFANN, FANN2, and Dust) and from 12 different tea estates in Indonesia have been replicated in their optical transitions and classified on the basis of caffeine content. It was found that caffeine content in tea products may vary depending on the grade and origin of the tea plantation. FANN grade has higher caffeine content that other grades while products from highland tea plantation generally have more caffeine content for all tea grades.
Kekerabatan Genetik Ikan Cempedik (Osteochilus spilurus) dan Ikan Lain yang Tertangkap dalam Sero di Sungai Lenggang, Belitung Timur menggunakan RAPD
Authors: Kurniawan Ardiansyah , Fakhrurrozi Yulian , Kurniawan Andri
Published: March 2022

Sungai Lenggang sebagai sungai terbesar di Pulau Belitung memiliki potensi sumberdaya perikanan air tawar yang beranekaragam. Satu diantaranya yang menonjol adalah ikan Cempedik (Osteochilus spilurus). Sebagian besar penangkapan ikan ini menggunakan alat tangkap pasif berupa Sero. Beberapa jenis ikan yang berbeda secara morfologi tertangkap bersama Cempedik dalam Sero. Analisa kekerabatan menggunakan Random Amplified Polymorphism DNA (RAPD) pada ikan yang tertangkap dalam sero, ikan Cempedik dari muara sungai, dan spesimen ikan Cempedik dari Pulau Bangka. Analisa PCR-RAPD menggunakan 3 jenis primer yaitu OPA 1, OPA 2 dan OPN 5. Cyclocheilichthys apogon dan Puntius binotatus memiliki similaritas terendah karena hanya memiliki kesamaan pada 2 lokus. Osteochilus spilurus dari lokasi berbeda memiliki kekerabatan terdekat. Sampel Rasbora sp menjadi spesies dengan kekerabatan terdekat dengan Osteochilus spilurus dibandingkan spesies lainnya. Penghalang geografis diprediksi menjadi pemicu jarak genetik spesies yang sama.
Spatial Analysis of Gravity Anomaly Over Maar Area of Lamongan Volcanic Field
Authors: Nur Aziz Khafidh , Jamilatusolikhah Jamilatusolikhah , Agasti Rini Dini , Larasati Yanuri , Bian Itsna Ashfa Al Ashfiya
Published: March 2022

Lamongan Volcano located in, East Javahas basaltic cinder or spatter cones and maars.The presence of maar and cinder cones indicates active volcanic activity at their time.We used secondary gravity data from GGMplus. The result of residual anomaly map shows that Maar which is located on the NW of Lamongan Volcano shows a lineament pattern with Lamongan Volcano which is trending northwest-southeast and maar indicates a normal fault.
Aplikasi Sistem Kontinyu Menggunakan Karbon Aktif untuk Penurunan Kadar Logam Cu dan Zn dalam Air Limbah
Authors: Kristianingrum Susila , Sulistyani Sulistyani , Fillaeli Annisa , Dwi Siswani Endang , Hasna Nafiisah Nur
Published: March 2022

Penelitian ini bertujuan untuk mengetahui variasi massa adsorben dan laju alir yang paling optimum, efisiensi penjerapan (Ep), kapasitas adsorpsi paling tinggi, serta tipe adsorpsi dari karbon aktif teraktivasi ZnCl2 terhadap penyerapan logam Cu dan Zn dalam limbah simulasi menggunakan sistem kolom kontinyu. Metode adsorpsi logam Cu dan Zn dilakukan secara kontinyu dengan menggunakan kolom. Limbah simulasi dialirkan secara gravitasi dari atas ke bawah melalui kolom yang telah diisi adsorben. Subjek dalam penelitian ini adalah karbon aktif dari daun pandan laut teraktivasi ZnCl2 5%. Sementara objek pada penelitian ini adalah efisiensi adsorpsi, kapasitas adsorpsi, dan tipe adsorpsi dari adsorben daun pandan laut teraktivasi ZnCl2 5% terhadap logam Cu dan Zn. Analisis kandungan logam Cumenggunakan Spektrofotometer UV-Visible dan logam Znmenggunakan Spektrofotometer Serapan Atom (SSA). Hasil penelitian menunjukkan bahwa massa adsorben optimum untuk penurunan kadar logam Cu dan Znberturut-turut adalah 0,7 gram dan 0,9 gram dengan laju alir optimum sebesar 0,3 mL/menit dan 0,2 mL/menit, maka akan dihasilkan efisiensi adsorpsi terbesar untuk logam Cuyaitu 96,6854% dan 38,6576% untuk logam Zn. Kapasitas adsorpsi tertinggi karbon aktif dari daun pandan laut teraktivasi ZnCl2 terhadap penyerapan logam Cu dan Zn berturut-turut sebesar 48,8149 mg/g dan 16,3567 mg/g. Tipe adsorpsi logam Cu memenuhi pola isoterm Langmuir.
PENGARUH LATIHAN SENAM KESEGARAN JASMANI (SKJ) 2017 TERHADAP PENINGKATAN KESEIMBANGAN DAN DAYA TAHAN KARDIORESPIRASI
Authors: Suharti Suharti , Kriswanto Erwin Setyo
Published: March 2022

AbstrakPenelitian ini bertujuan untuk menguji pengaruh latihan Senam Kesegaran Jasmani (SKJ) 2017 terhadap keseimbangan dan daya tahan kardiorespirasi. Penelitian ini menggunakan jenis penelitian kuantitatif dengan metode eksperimen semu (Quasi experimental), dengan ­pre test-post test desain. Populasi penelitian adalah mahasiswa Pendidikan Kepelatihan Olahraga angkatan 2016 Universitas PGRI Adi Buana. Penentuan sampel dengan purposive random sampling, sehingga sampel yang ditentukan berjumlah 33 mahasiswa. Instrumen penelitian untuk mengetahui keseimbangan menggunakan balance beam test sedangkan daya tahan kardiorespirasi menggunakan multy stage fitness test. Analisis data menggunakan uji t. Simpulan penelitian ini adalah ada pengaruh yang signifikan latihan Senam Kesegaran Jasmani (SKJ) 2017 terhadap peningkatan keseimbangan dan daya tahan kardiorespirasi. THE EFFECT OF "SENAM KESEGARAN JASMANI 2017" TRAINING ON THE IMPROVEMENT OF BALANCE AND CARDIORESPIRATORY FITNESS AbstractsThis study aims to examine the effect of “Senam Kesegaran Jasmani (SKJ) 2017” exercises on cardiorespiratory balance and endurance. This study uses quantitative research with quasi-experimental methods (Quasi-experimental), with pre-test-post test design. The study population was students of 2016 Sports Training Education at the University of PGRI Adi Buana University. Determination of the sample by purposive random sampling, so that the determined sample numbered 33 students. Research instruments to determine the balance using a balance beam test while cardiorespiratory endurance uses a multi-stage fitness test. Data analysis using t-test. This study concludes that there is a significant influence on the “Senam Kesegaran Jasmani (SKJ) 2017” on increasing the balance and endurance of cardiorespiratory.
Penerapan aktivitas fisik outbound dan brain gym dalam menumbuhkan kinerja instruktur wisata air titik 0 Jawa Tengah
Authors: Prasetyo Yudik , Sutapa Panggung , Prihantanta Hadwi , Arjuna Fatkurahman
Published: March 2022

Peran instruktur dalam memberikan pelayanan kepada pengunjung menjadi ujung tombak keberhasilan tempat wisata. Wisata Air Titik 0 Jawa Tengah adalah destinasi wisata air yang lebih erat dengan menu aktivitas olahraga. Kepuasan pengunjung merupakan tujuan, terutama dari penyedia jasa Wisata Air Titik 0 Jawa Tengah. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan pendekatan kualitatif. Teknik pengumpulan data menggunakan observasi, wawancara, dan dokumentasi. Sampel yang digunakan dalam penelitian ini berjumlah 30 orang. Hasil penelitian ini menunjukkan bahwa (1) kinerja instruktur Wisata Air Titik 0 Jawa Tengah cukup baik, (2) penerapan outbound dilakukan secara baik dengan tahapan: perencanaan, pelaksanaan dan evaluasi, (3) instruktur semakin baik dalam hal kerjasama, kedisiplinan, dan tanggung jawab. Implementation of outbound and brain gym physical activities in growing performance of instructors point 0 Central Java AbstractsThe role of instructors in providing services to visitors is the spearhead of the success of tourist attractions. Water Tourism Point 0, Central Java is a water tourism destination that is closer to a menu of sports activities. Visitor satisfaction is a goal, especially from Water Tourism service provider Point 0 Central Java. Therefore the purpose of this study is the application of physical activity outbound and brain gym in fostering the performance of the Water Tour Instructor Point 0, Central Java. The method used in this research is descriptive method with a qualitative approach. Data collection techniques using observation, interviews, and documentation. The sample used in this study amounted to 30 people. The results of this study indicate that (1) the performance of the Water Tourism Instructor Titik 0 Central Java is quite good, (2) implementation of the outbound is done well in stages: planning, implementation, and evaluation, (3) the instructor is getting better in terms of cooperation, discipline, and responsibility.