bluuebunny/crossref_metadata_2025 huggingface dataset:
Productivity of crops in rainfed conditions on light chestnut soils of the Lower Volga region
Authors: Laptina Yulia  Aleksandrovna , Bugreev Nikolay Alekseevich , Sharapova Elena Aleksandrovna
Published: October 2019

The article presents the results of three years of field research on studying of influence of ways of the basic processing of soil and systems of applied fertilizers on productivity of grain crops. The experiment considered winter wheat, cultivated on black steam, and is itself a precursor to the Sudanese grass. Three variants of the main tillage and four variants of the use of mineral fertilizers in the cultivation of winter wheat varieties of local selection of reed 3 were studied. Field experiments were conducted at the STC of Volgograd state University "Gornaya Polyana" on light chestnut soils from 2016 to 2019. As a result of studying the productivity of winter wheat in rainfed conditions on light chestnut soils of the Lower Volga region, it was found that the maximum values of biometric indicators, elements of the structure of the crop, biological and economic productivity were obtained during its cultivation by deep chisel processing by the working bodies of the "Ranch" with the use of ammophos and potassium chloride during sowing and early spring feeding with ammonium nitrate. The minimum values of biometric indicators, elements of the structure of the crop, biological and economic productivity are obtained by cultivating it on a small disk processing without the use of fertilizers.
Physical methods and their influence on seed sowing qualities and harvest of tomatoes of different precocity
Authors: Alikina Natalia Sergeevna , Chernyshev Nikolai Ilyich
Published: October 2019

The results of studies of the influence of laser treatment on tomatoes’ seeds are  given. The  treatment increased germination and seed germination energy, as well as the yield.
Substantiation of expediency of use of Strip-till soil treatment in steppe Volga region
Authors: Boykov Vasiliy Mihaylovich , Vorotnikov Igor Leonidovich , Narushev Viktor  Bisengalievich , Startsev Sergey Viktorovich
Published: October 2019

The article presents material on the scientific and practical justification for the use of strip tillage in the steppe Volga region. A comparative analysis of various types of soil cultivation used in the region was carried out: plowing, plow tillage, minimum tillage, zero tillage (No-till), strip tillage (Strip-till), and strip ridge tillage  (ridge-till).
Pendampingan Integrated Policy and Managemen System Tata Kelola Sampah di Pesantren Ngalah Sengonagung Purwosari Pasuruan
Authors: Abror M. Daimul , Amang Fathurrohman  , Zainul Ahwan  , Lukman Hakim
Published: October 2019

Kajian ini menyajikan tentang hasil pengabdian masyarakat yang dilakukan di Pondok Pesantren Ngalah Pasuruan melalui pendampingan integrated policyandmanagement system tata kelola sampah untuk mengurai permasalahan timbulan sampah di pesantren tersebut. Melalui pendekatan Community Based Research (CBR), hasil pendampingan ini mampu memberikan kontribusi dan membuat perubahan dalam mengintegrasikan kebijakan biro kebersihan dan kesehatan di Pesantren tersebut yang berimplikasi kepada peningkatan sinergi biro kebersihan dan kesehatan antara pengurus pusat dengan pengurus di 15 Asrama. Selain itu, melalui pendampingan ini telah mengubahn sistem tata kelola sampah dari model open dumping dan pembakaran sampah menjadi sistem manajemen tata kelola sampah terpadu dengan melakukan pemilahan pada sumbernya.
MEMBANDINGKAN METODE SIMPLEKS DAN LINPROG
Authors: Ilmi Ulul
Published: October 2019

Penelitian ini bertujuan membandingkan antara metode simpleks dan linprog guna merancang usaha tani untuk menemukan nilai optimisasi pada masalah pemrograman linear (linear programming) dengan menggunakan software matlab. Kriteria keberhasilan penelitian ini didasarkan pada ketepatan nilai fungsi objektif dan beban komputasi yang dihasilkan oleh kedua metode itu. Penelitian ini mengambil tempat di Instansi Dinas Pertanian dan Kehutanan Kecamatan Paciran.Dalam penyelesaiannya, linear programming menuntut fungsi tujuan bernilai optimal (maksimum atau minimum) nonnegative yang tunduk pada variabel pembatas.Hasil eksekusi simulasi linear programming menunjukkan metode linprog yang di hasilkan melalui software matlab menghasilkan beban komputasi yang lebih kecil jika dibandingkan dengan metode simpleks yang juga disimulasikan memakai software matlab
Suomen mukaan-sanan kieliopillistuminen
Authors: Ojutkangas Krista
Published: October 2019

Abstraktit julkaistaan numerosta 60 alkaen.
Ilmisubjektin ja ilmisubjektittomuuden vaihtelua Lauseopin arkiston murrekorpuksessa
Authors: Kurki Tommi
Published: October 2019

Milja Väänänen: Subjektin ilmaiseminen yksikön ensimmäisessä persoonassa. Tutkimus suomenvanhoista murteista. Turun yliopiston julkaisuja, Annales Universitatis Turkuensis, sarjaC, osa 430. Scripta Lingua Fennica Edita. Turun yliopisto, Turku 2016. 246 sivua + 4 liitesivua.
SPECIFIC FEATURES IN THE EXPRESSION OF INTRASPECIES VARIABILITY OF PRUNUS PUMILA FRUITS IN CHELYABINSK PROVINCE IN THE PROCESS OF INTRODUCTION
Authors: Lezin M. S. , Simagin V. S. , Lokteva A. V.
Published: October 2019

Background. The studied population of Prunus pumila L. has been introduced into Chelyabinsk Province, as its natural area of distribution is in North America. Of interest for researchers is the introduced population’s variability, induced by the effect of soil and climate factors natural for its new habitat.

Materials and methods. A collection of 197 plants was employed to study the variability of P. pumila. Morphological characters were described in compliance with atlases dedicated to seed and fruit descriptive morphology, with some adjustments concerning specific features of the subfamily Prunoideae Focke. The confidence interval for means was calculated using the reliability criterion of t2 = 2.576. The degree of variation was assessed for the studied characters according to S. A. Mamaev’s scale.

Results and conclusion. The average fruit weight was 2.49±0.11 g and varied from 1.25 to 5.15 g. The average stone weight was 0.25±0.01 g. Out of the number of morphometric traits, almost all linear characters of fruit and stone size had low variability (coefficient of variation [V]: 8–12%). Of those linear characters, only the peduncle length showed medium variability (V = 13–20%). The stone weight also had medium variability, while the fruit weight demonstrated high variability (V = 21–30%). The fruit shape was subglobose (40.3%), less frequently ovate (20.9%), ovoid (20.9%), broadly ovoid (9.7%), cordate (6.1%) or elliptic (2.0%). The ventral suture was usually barely noticeable, less frequently moderately (3.1%) or strongly expressed (1.0%). Polymorphism was observed in the pulp color, which was usually green-pink (72.8%). The P. pumila stone shape was elliptic (38.1%) or subglobose (34.0%), less frequently prolate (10.7%), ovoid (13.2%) or obovate (4.1%). The stone was symmetrically shaped from the ventral suture and sides, usually looking subglobose from the sides. The shape of the stone’s apex was rounded (85.3%) or, less frequently, obtusely mucronate (15.7%); its base was rounded (80.7%), often attenuate (15.7%), less frequently slightly slanted (3.6%). The stone surface texture was smooth (57.4%), often slightly costate (36.5%). There were several cases of a more costate surface of the stone (6.1%). Thus, the introduced population was found to have broad polymorphism of morphological characters in the fruit and the stone. A considerable increase was observed in morphometric indicators, including the size of fruit and stone, compared with those typical for the species in natural environments, which may be of special significance for breeders. The fusiform shape of the stone, characteristic of var. depressa Pursh. in its natural habitat, was absent in the introduced population.
ALGORITHM OF AIRCRAFT TARGET CHOICE
Authors: Магдин Александр , Magdin Aleksandr , Припадчев Алексей , Pripadchev Aleksey , Горбунов Александр , Gorbunov Aleksandr
Published: October 2019

The work purpose consists in the algorithm development for aircraft target choice. The investigations were carried out with the use of methods of a system analysis, a theory of modeling, mathematical methods, methods of object-directed programming.

In farms when agricultural area processing it is advisable to use an aircraft. A choice is argued by aircraft advantages over the ground-based means of agricultural area processing which consist in mobility and a processing speed and also in the absence of mechanical impact upon the growth of the area under processing. In the paper there is offered a procedure for a choice of an aircraft type for processing different agricultural area on the criterion of minimum costs. An investigation novelty consists in the use of the algorithm developed with reference to the choice of agricultural aircraft for chemical agent distribution depending on agricultural area dimensions and a landscape.

Conclusion: the developed algorithm for a target choice of an aircraft allows carrying out a complex analysis both of aircrafts (characters, engineering and flight characteristics) on the basis of costs minimum for an agricultural area processing, and a geometry (dimensions and configuration) of the areas to be subjected to processing. In the paper as an example there is carried out a choice of an aircraft for processing a set of areas with specified dimensions.
lembaga-lembaga negara dalam susunan pemerintahan tingkat pusat, kota dan provinsi, kecamatan dan desa
Authors: Mardiah Hema Marwan
Published: October 2019

lembaga-lembaga tingkat pusat terdiri dari legislatif, eksekutif dan yudikatif. lembaga legislatif terdiri dari MPR, DPR, DPD. lembaga eksekutif terdiri dari Presiden dan Wakil Presiden. lembaga yudikatif terdiri dari MA, MK, KY. lembaga tingkat kota dan provinsi terdiri dari gubernur dan bupati/walikota. lembaga tingkat kecamatan terdiri dari camat. lembaga tingkat desa terdiri dari lurah dan kepala desa.
Perancangan Aplikasi m-Campus (Mobile Campus) Studi Kasus Akademi Manajemen Informatika dan Komputer HASS
Authors: Budiman
Published: October 2019

Smartphone merupakan alat komunikasi yang menjadi kebutuhan primer di masyarakat dari berbagai kalangan. Penerapan teknologi informasi di perguruan tinggi merupakan salah satu bentuk dari perubahan dalam proses pelayanan administrasi akademik kepada mahasiswa. AMIK HASS belum memiliki aplikasi mobile campus (m-campus) sehingga pengaksesan informasi aktifitas mahasiswa belum efektif dan efisien dapat diakses melalui smartphone. Perancangan aplikasi mcampus menggunakan alat desain sistem object oriented atau Unified Modelling Language diantaranya Use Case Diagram, Activity Diagram, Class Diagram dan Collaboration Diagram. Perancangan aplikasi m-campus dirancang sesuai dengan kebutuhan dalam menunjang layanan akademik. Sehingga diharapkan dengan perancangan aplikasi m-campus dapat digunakan dalam mengembangkan Sistem Informasi Akademik dan informasi aktifitas kegiatan mahasiswa dapat diakses secara efektif dan efisien.Kata Kunci: m-Campus, android, mobile, akademik
Sistem Pendukung Keputusan Penilaian Mahasiswa Berprestasi Berbasis Web (Studi Kasus : AMIK HASS)
Authors: Budiman
Published: October 2019

Dalam penilaian mahasiswa berprestasi oleh bagian akademik di AMIK HASS Bandung terdapat beberapa faktor yang menjadi penilaian. Penilaian ini berdasarkan penilaian selama Kegiatan Belajar Mengajar (KBM), yakni penilaian tugas, quis, UTS dan UAS. Demi efisiensi dan efektifitas perkuliahan maka pengambilan keputusan yang tepat sangat diperlukan.Penelitian ini bertujuan untuk membangun sebuah sistem pendukung keputusan yang mempunyai kemampuan analisa penilaian mahasiswa berprestasi, dimana masing-masing kriteria dalam hal ini faktor- faktor penilaian dan alternatifnya para mahasiswa dibandingkan satu dengan yang lainnya sehingga memberikan output nilai intensitas prioritas yang menghasilkan suatu sistem yang memberikan penilaian terhadap setiap mahasiswa.Sistem pendukung keputusan ini membantu melakukan penilaian setiap mahasiswa, melakukan perubahan kriteria,dan perubahan nilai bobot. Hal ini berguna untuk memudahkan pengambil keputusan yang terkait dengan masalah penilaian mahasiswa berprestasi, sehingga akan di dapatkan peringkat mahasiswa tertinggi hingga terendah.Kata Kunci: Sistem, Keputusan, Penilaian, Mahasiswa.
Self-Efficacy of English Education Students in a Private University in Makassar: A Comparison across Batches
Authors: Syamsu Awaluddin , Yunus Muhammad , Sulaiman Rizkariani
Published: October 2019

Teacher’s self-efficacy has been linked with their positive performance and it starts developing in their study time at university. Therefore, curriculum at university plays an important role to create a gradual increase of the student teacher’s self-efficacy. So the students with higher academic year should have a better level of self-efficacy. This research aimed at finding out the efficacy for student engagement, instructional strategy, and classroom management of the English Education students in four different years of intake. The study was conducted in one of the reputable private Universities in Makassar, Indonesia. A Short Teacher Sense of Efficacy Scale (Tschannen-Moran & Woolfolk Hoy, 2001) was employed as questionnaire tool to collect data. The data obtained from 122 students was computed using SPSS with non-parametric test. The result indicated that the lowest three aspects of self-efficacy level were found in the last two years of their study whereas the highest self-efficacy level was found in the first two years students. This research suggests the importance of modifying a curriculum which can assure that the self-efficacy increase during their academic study.
Using anticlustering to partition data sets into equivalent parts
Authors: Papenberg Martin , Klau Gunnar W.
Published: October 2019

Numerous applications in psychological research require that a pool of elements is partitioned into multiple parts. While many applications seek groups that are well-separated, i.e., dissimilar from each other, others require the different groups to be as similar as possible. Examples include the assignment of students to parallel courses, assembling stimulus sets in experimental psychology, splitting achievement tests into parts of equal difficulty, and dividing a data set for cross validation. We present anticlust, an easy-to-use and free software package for solving these problems fast and in an automated manner. The package anticlust is an open source extension to the R programming language and implements the methodology of anticlustering. Anticlustering divides elements into similar parts, ensuring similarity between groups by enforcing heterogeneity within groups. Thus, anticlustering is the direct reversal of cluster analysis that aims to maximize homogeneity within groups and dissimilarity between groups. Our package anticlust implements two anticlustering criteria, reversing the clustering methods k-means and cluster editing, respectively. In a simulation study, we show that anticlustering returns excellent results and outperforms alternative approaches like random assignment and matching. In three example applications, we illustrate how to apply anticlust on real data sets. We demonstrate how to assign experimental stimuli to equivalent sets based on norming data, how to divide a large data set for cross validation, and how to split a test into parts of equal item difficulty and discrimination.
Changes over time in young adults' harmful alcohol consumption: A cross-temporal meta-analysis using the AUDIT
Authors: Visontay Rachel , Mewton Louise , Sunderland Matthew , Prior Katrina , Slade Tim
Published: October 2019

Background: Recent studies suggest that young adult participation in, and volume of, alcohol consumption has decreased. However, the evidence on trends in harmful alcohol consumption in this age group is limited. The current paper aims to examine changes over time in harmful alcohol consumption using a robust, widely employed measure.Methods: The literature was systematically searched for articles reporting on Alcohol Use Disorders Identification Test (AUDIT) scores in young adults aged 18-24 years. The key data extracted were year of measurement and mean AUDIT score (proportion above clinical cut-off was not relevant for these analyses). Cross-temporal meta-analysis was applied to the extracted data.Results: A decrease was found in young adults’ AUDIT scores measured between 1989 and 2015 (b=-0.13, β=-0.38, p=0.015, 95% CI=-0.24, -0.03), representing a 0.63 standard deviation change over this period. Variance did not change over this time, suggesting scores decreased equally over the distribution.Conclusions: Results indicate that harmful alcohol consumption in young adults may have declined between 1989 and 2015. Despite the continued problems posed by dependence and short and long-term harms, these promising findings offer hope that the considerable alcohol-related disease burden in this age group may be reduced.Ongoing data collection is required to evaluate whether these declines in young adulthood persist into later life, and future research should explore the reasons for declining harmful alcohol consumption in young adults.
Collocational processing in L1 and L2: The Effects of Word Frequency, Collocational Frequency, and Transitional Probabilities
Authors: Oksuz Dogus Can , Rebuschat Patrick , Brezina Vaclav
Published: October 2019

This study investigated the effects of individual word frequency, collocational frequency and transitional probabilities on L1 and L2 collocational processing. An acceptability judgment task was administered to advanced L1 Turkish L2 speakers of English (n = 32) and L1 speakers of English (n = 30). Response times were analysed using mixed-effects modelling for three types of adjective-noun pairs: (1) high-frequency, (2) low-frequency and (3) baseline items. This study extended the previous findings by looking at whether the effects of individual word and collocation frequency counts change for L1 and L2 speakers’ processing of low-frequency and high-frequency collocations. It also looked at the differences between L1 and L2 speakers’ sensitivity to mutual information and log dice scores, which are corpus-derived association measures, for processing adjective-noun collocations. As for frequency, both groups of participants demonstrated sensitivity to both individual word and collocation frequency counts, However, there was a reduced effects of individual word frequency counts for processing high- frequency collocations compared to low-frequency collocations. Both groups of participants were similarly sensitive to the mutual information and log dice measures.
An atypical case of Whipple’s disease presenting as fever of unknown origin: A brief review
Authors: Savaryn Bohdan , Decker Martha , Ye Carrie , Bacani Julinor , Houston Stan
Published: October 2019

A 59-year-old woman with epilepsy was admitted to hospital with a 6-year history of fever of unknown origin (FUO). Computed tomography (CT) showed extensive low-attenuation mesenteric and retroperitoneal lymphadenopathy. Investigations for malignancy and infection were negative, including two separate excisional biopsies of lymph nodes. An ascending aortic aneurysm was seen on CT, and a diagnosis of large vessel vasculitis (LVV) was considered. A trial of prednisone for presumed LVV was initiated and then discontinued when positron emission tomography (PET) failed to show vasculitis. Repeat core biopsy of a mesenteric lymph node revealed non-necrotizing granulomatous inflammation and histiocytes with periodic acid–Schiff (PAS)-positive intracellular material. Electron microscopy and polymerase chain reaction (PCR) of the tissue confirmed Tropheryma whipplei. She was treated with ceftriaxone for 2 weeks, followed by long-term combination doxycycline and hydroxychloroquine. The patient's seizure control improved on therapy, raising the suspicion that the seizure disorder was due to Whipple's disease.
Clinical impact of cerebrospinal fluid Gram stain and culture testing: A retrospective cohort study
Authors: Joyce Joanna , Garcia David , Daley Peter
Published: October 2019

Background: Stewardship of microbiological tests can improve laboratory efficiency. One indicator of appropriate test stewardship is test impact on patient management decisions. We sought to assess the impact of cerebrospinal fluid (CSF) Gram stain and culture results on treatment decisions. Our hypothesis was that CSF Gram stain and culture have low impact on patient management. Methods: CSF specimens received at a tertiary microbiology laboratory between January 1, 2013, and December 31, 2013, were included. Clinical information and data on antibiotic treatment before CSF collection, antibiotic treatment after CSF Gram stain results, and antibiotic treatment after CSF culture results were collected. Ethics approval for secondary use of data was obtained. Results: We received 242 CSF specimens for Gram stain and culture during the study period; 120 were excluded (84 from children, 2 from indwelling ventricular drains, 12 collected at outside hospitals, 21 data missing, 1 duplicate). No Gram stains or cultures were positive among patients not already treated empirically. The number needed to test to influence treatment was 17 for Gram stain (11 for abnormal cytochemistry, 29 for normal cytochemistry) and 6 for culture (3 for abnormal cytochemistry, 6 for normal cytochemistry). Conclusions: CSF Gram stain and culture are rarely positive and are being performed on inappropriate specimens. CSF results never prompt physicians to start treatment, so results are affecting not outcome but antibiotic stewardship. Negative CSF culture often leads to discontinuation of antibiotics. Labs could consider rejecting CSF Gram stain if cytochemistry is normal.
Utilization of Geographic Information System(GIS) in Determining the Suitability of Fisheries Locations Cultivation of Freshwater Fish Ponds in South Aceh Regency
Authors: Ramadhini Meraty , Sihombing Arnold Rikardo
Published: October 2019

The potential of freshwater aquaculture area in South Aceh has not been optimally pursued; this is due to the limited technological and information capabilities, institutions and funding. The purpose of this study was to map the suitability of freshwater aquaculture land by utilizing the Geographic Information System (GIS) and multi criteria analysis in South Aceh. Determination of land suitability is done through the Multi Criteria Evaluation (MCE) and application of Geographic Information Systems (GIS). The results of the analysis show that the appropriate location (S1) is 81.55% (of the total area sample area) and the location which is not suitable is 18.45% (of the total area sample area). This indicates that the coastal areas of South Aceh have potential freshwater aquaculture areas.
Throughput Analysis on LTE Network for Multicast D2D System
Authors: Adami Fardiansyah
Published: October 2019

One of the features applied to fifth generation (5G) technology is Device-to-Device (D2D) communication. The D2D communication can occur directly without going through evolved Node B (eNB). Therefore, that it can reduce traffic density on cellular network communications. However, the application of D2D communication has constrained by the limited transmission distance and multi-user service at the same source. Modelling and simulating the LTE D2D multicast network using software is an effectively and efficiently ways for analyzing mac throughput. The testing of network aims to observe and to analyze the mac throughput using two parameters, the transmission distance and the number of users, based on the utilization of the Channel Quality Indicator (CQI) index. The number of user is 20 and distance is 25 meters then mac throughput in index CQI 13 greater than CQI 4 and CQI 7 is 2150.14 Kbps. But the number of user is 20 and distance is 150 meters then CQI 13 smaller than CQI 4 and CQI 7 is 271.22 Kbps. The result of simulation shows that both distance and the number of user have influence mac throughput. The selection of CQI index is the most important factor to maintain the transmission quality and mac throughput.
Analysis of Compression Strength on Plastic Brick Material
Authors: Alif Mislina , Aulianur Devendra , Anhar Anhar
Published: October 2019

Plastic waste has a negative impact on the environment, handling plastic waste by utilizing plastic waste and sand to make plastic bricks. This study aims to make plastic bricks, test the compressive strength of plastic bricks and determine the density. Making plastic stones using the experimental method, this method of experimenting with experience to prove themselves a statement that is learned. Maximum compressive strength test results in samples 1, 1 kg of plastic: 1 kg of sand = 141.42 kg/cm2. Sample 2, 1.15 kg plastic: 0.85 kg sand = 117.23 kg / cm2 and Sample 3, 0.85 kg plastic: 1.15 kg sand = 112.50 kg / cm2. Average mass weight sample 1 (1.25 kg) and the average lost weight of sample 1 (0.75 kg), average weight mass of sample 2 (1.39 kg) and lost average sample weight 2 (0.61 kg), mass average weight of sample 3 (1.3 kg) and loss of average sample weight 3 (0.7 kg) with total material used 2 kg. Based on the results of compressive strength tests, plastic bricks meet quality standards (SNI 15-2-94-1991). Thus this research can replace industrial products and maintain a healthy environment.
BERPIKIR ALJABAR DALAM PEMECAHAN MASALAH MATEMATIKA
Authors: Warsitasari Wahyu Dwi
Published: October 2019

Fokus masalah penelitian ini adalah kesulitan siswa dalam mempelajari materi pelajaran aljabar, yang menurut NCTM aljabar sangat penting dan berguna untuk kehidupan mendatang seseorang. Tujuan penelitian mendeskripsikan profil berpikir aljabar siswa dalam pemecahan masalah matematika. Metode penelitiannya kualitatif-deskriptif yang dilakukan pada siswa kelas VII SMPN I Trenggalek dengan instrumen pengumpulan datanya peneliti sendiri, tes, dan wawancara. Berdasarkan data penelitian menunjukkan bahwa siswa kemampuan matematika tinggi berpikir aljabar dalam setiap tahapan pemecahan masalah yang diberikan, sedangkan siswa kemampuan matematika sedang dan rendah tidak selalu berpikir aljabar dalam setiap tahapan pemecahan masalah. Pemenuhan indikator-indikator berpikir aljabar dalam pemecahan masalah menunjukkan bahwa dalam berpikir aljabar ketiga subjek penelitian (siswa) menggunakan empat proses berpikir: generalisasi, abstraksi, berpikir dinamis, dan pemodelan.
KOMUNIKASI MATEMATIKA TERTULIS DALAM MENYELESAIKAN MASALAH MATEMATIKA
Authors: Maarif Safiil , Nurmilah Rifa
Published: October 2019

Masalah yang dibahas penelitian ini adalah rendahnya kemampuan komunikasi matematika siswa di MI. Fakta ini menjadi permasalahan penelitian karena secara teoritis menurut A. J. Baroody pembelajaran harus dapat membantu siswa mengkomunikasikan ide matematis. Tujuan penelitiannya mendeskripsikan profil komunikasi matematika tertulis siswa dengan gaya belajar siswa dalam menyelesaikan masalah matematika. Metode penelitiannya adalah deskriptif yang dilakukan pada siswa V MI Al-Hikmah Janti Jogoroto Jombang. Instrument peneltiannya adalah peneliti, tes, dan wawancara. Menurut data penelitian menunjukkan bahwa siswa bergaya belajar visual, auditori, dan kinestetik akurat dan lengkap dalam menuliskan hal-hal yang relevan dengan masalah, akurat dan lengkap dalam menuliskan rumus yang digunakan untuk menyelesaikan masalah, akurat dan lengkap dalam menuliskan langkah-langkah perhitungan dalam menyelesaikan masalah.
PEMBELAJARAN BERBANTUAN WINPLOT DENGAN MODEL INKUIRI UNTUK TOPIK GRAFIK FUNGSI KUADRAT
Authors: Anggraini Valentine Luky
Published: October 2019

Pembelajaran grafik fungsi kuadrat seringkali dianggap sulit dan sekedar hafalan untuk siswa dikarenakan pemahamannya yang kurang terhadap materi ini. Menurut beberapa ahli, dalam mengajarkan pembelajaran grafik fungsi kuadrat sebaiknya siswa menganalisis hubungan koefisien a, b, dan c pada bentuk umum f(x) = ax2 + bx + c, a ≠ 0 terhadap arah terbukanya grafik, persamaan sumbu simetri, nilai maksimum/minimum, koordinat titik puncak, koordinat titik potong sumbu x dan koordinat titik potong sumbu y.Oleh karena itu, penulis mengembangkan pembelajaran berbantuan winplot dengan model inkuiri untuk topik grafik fungsi kuadrat. Penggunaan software winplot dapat membantu siswa dalam melihat perubahan grafik fungsi kuadrat dalam satu tampilan layar. Pemilihan model inkuiri dikarenakan model pembelajaran ini dapat mendukung siswa dalam melakukan kegiatan meneliti dan menganalisis hubungan-hubungan koefisien dengan grafik fungsi kuadrat yang didapatkan.Untuk menghasilkan perangkat pembelajaran yang baik, digunakan hasil modifikasi model 4-D Thiagarajan, Semmel dan Semmel yang meliputi tahap pendefinisian (define), perancangan (design) dan tahap pengembangan (develop). Perangkat pembelajaran ini telah divalidasi oleh tiga validator dan direvisi berdasarkan saran dan masukan dari validator. Selain itu, perangkat pembelajaran ini telah diujicobakan kepada 28 siswa Kelas X pada bulan November 2013 di SMA Santa Maria Surabaya dan mendapatkan respon siswa yang positif, kemampuan guru efektif, serta hasil belajar valid dan reliabel. Sehingga perangkat pembelajaran yang dihasilkan baik dengan hasil pengembangan perangkat pembelajaran dalam penelitian ini adalah: (1) Rencana Pelaksanaan Pembelajaran (RPP), (2) Lembar Kerja Siswa (LKS), dan (3) Kuis.Berdasarkan hasil penelitian, perangkat pembelajaran berbantuan winplot dengan model inkuiri untuk topik grafik fungsi kuadrat diharapkan dapat menjadi alternatif pembelajaran dan disarankan kepada peneliti lainnya dengan penelitian sejenis agar dapat meminimalisir kelemahan penelitian.
KREATIVITAS SISWA SMP RSBI DALAM PEMECAHAN DAN PENGAJUAN MASALAH MATEMATIKA BERDASARKAN OPEN-ENDED PROBLEM PICTURE DITINJAU DARI KEMAMPUAN MATEMATIKA
Authors: Kartika Easty
Published: October 2019

Penelitian ini merupakan penelitian eksploratif dengan pendekatan kualitatif yang bertujuan untuk mendeskripsikan kreativitas siswa dalam memecahkan dan mengajukan masalah matematika berdasarkan open-ended problem picture ditinjau dari kemampuan matematika dengan tiga indikator kreativitas yakni kefasihan, keluwesan dan kebaruan. Subjek penelitian terdiri dari tiga siswa kelas VII SMP N 6 Surabaya dan SMP Al Hikmah Surabaya dalam tiga tingkat kemampuan matematika. Tahap penelitian dimulai dengan penentuan subjek penelitian yang ditentukan berdasarkan tes kemampuan matematika. Kebersediaan dan siswa yang terbuka juga menjadi pertimbangan peneliti dalam memilih subjek kemudian dilanjutkan dengan pemberian tugas pemecahan dan pengajuan masalah dan wawancara. Keabsahan data dilakukan dengan menggunakan triangulasi waktu yaitu pemberian tugas pemecahan dan pengajuan masalah yang setara untuk kedua kalinya.Hasil penelitian menunjukkan subjek dengan kemampuan tinggi baik dalam memecahkan masalah maupun mengajukan masalah memenuhi tiga indikator yakni kefasihan, keluwesan dan kebaruan. Subjek dengan kemampuan sedang dalam memecahkan masalah memenuhi tiga indikator yakni kefasihan, keluwesan dan kebaruan, dalam mengajukan masalah juga memenuhi tiga indikator yakni kefasihan, keluwesan dan kebaruan meski tidak seluwes subjek dengan kemampuan tinggi. Subjek dengan kemampuan rendah dalam memecahkan masalah memenuhi tiga indikator yakni kefasihan, keluwesan dan kebaruan, namun hanya satu indikator dalam mengajukan masalah yakni kefasihan.
PEMBELAJARAN BERBASIS PROYEK DENGAN MEMANFAATKAN ADOBE FLAS CS3UNTUK SISWA SEKOLAH MENENGAH KEJURUAN
Authors: Setiyawati Indah
Published: October 2019

Pembelajaran berbasis proyek dipandang tepat sebagai satu metodeuntuk pembelajaran pada Sekolah Menengah Kejuruan (SMK).Pembelajaran berbasis proyek adalah metodepembelajaran yangmemberikan kesempatan kepada guru untuk mengelola pembelajarandi kelas dengan melibatkan kerja proyek. Kerja proyek menuntutsiswa untuk melakukan kegiatan merancang, melakukan kegiataninvestigasi atau penyelidikan, memecahkan masalah, membuatkeputusan, serta memberikan kesempatan kepada siswa untuk bekerjasecara mandiri maupun kelompok (kolaboratif). Hasil akhir dari kerjaproyek tersebut adalah suatu produk yang antara lain berupa laporantertulis atau lisan, presentasi atau rekomendasi. Penilaian tugas proyekdilakukan dari proses perencanaan, pengerjaan tugas proyek sampaihasil akhir proyek. Pengunaan Lembar Kerja Proyek (LKP) denganmemanfaatkan Adobe Flash CS3di Sekolah Menengah Kejuruan(SMK)jurusan Multimedia telah memberikan umpan balik yang nyatadengan makin meningkatnya kemandirian siswa dalam pembelajaranmatematika.
RETRACTED: PEMAHAMAN KONSEP PERBANDINGAN SISWA SMP BERKEMAMPUAN MATEMATIKA RENDAH
Authors: Lanya Harfin
Published: October 2019

Penelitian ini bertujuan untuk mendeskripsikan pemahaman konsep perbandingan siswa SMP berkemampuan matematika rendah.
Kreativitas Mahasiswa Calon Guru Dalam Pemecahan Masalah Matematika Ditinjau Dari Gaya Berpikir
Authors: Anwar Muhammad
Published: October 2019

This research study aims to describe the creativity of student teachers in solving mathematical problems in terms of the average difference between the style of thinking Monarchic, hierarchic, oligarchic and Anarchic. Creativity is referred to in this research is the process and the product's ability to think students or activities geared to produce something new. Mathematical problems referred to in this study are math problems that are not immediately be resolved using certain rules are already known by the students. The subjects were students who think Monarchic style, hierarchic, oligarchic or Anarchic.

To choose a subject of study, students were asked to fill questionnaire instrument thinking styles used as guidelines in determining the thinking styles of students. Based on the results sheet instruments stuffing on the thinking styles, students are grouped according to the style of thinking and thinking style groups each have 1 (one) students as research subjects. After that, the selected students were given a math problem solving test and be interviewed. From the results of tests and interviews, the researchers identified the creativity in each subject of study. To make the data valid student activity results then triangulation at different times. Once the data is valid, then the researchers analyzed and concluded creativity of student teachers in solving mathematical problems in terms of thinking styles.

The results of this study, it was found that 1) the creativity of students who have a thinking style monarchic (SM) in solving mathematical problems not meet the criteria of creativity in this study. 2) Creativity of students who have a thinking style Hierarchy (SH) in solving mathematical problems meeting the criteria of creativity that fluency and flexibility. 3) Creativity of students who have a thinking style oligarchic (SO) in solving mathematical problems not meet the criteria of creativity in this study. 4) Creativity of students who have a thinking style Anarchic (SA) to solve mathematical problems not meet the criteria of creativity in this study.
Analisis Kemampuan Penalaran Matematis Dan Mathematical Resilience Siswa Sma
Authors: Maryam Meri Siti , Nurdiawan Riska , Hermawan Wahyudi , Purwasih Ratni , Rohaeti Euis Eti
Published: October 2019

Penelitian ini bertujuan untuk mengetahui tingkat kemampuan penalaran matematis dan resiliensi siswa SMA untuk mengetahui kesalahan siswa dalam menyelesaikan soal statistika. Metode penelitian ini adalah deskritif kualitatif. Tempat penelitian dilaksanakan di SMA Negeri 4 Cimahi jurusan IPA kelas XII- MIA 3 semester 1. Penelitian ini tergolong dalam penelitian deskriptif kualitatif yang berupaya untuk mendeskripsikan analisis kesalahan siswa dalam mengerjakan dan menyelesaikan soal statistika. Populasi penelitian adalah seluruh siswa SMA kelas XII di kota Cimahi jurusan IPA. Untuk memperoleh data penelitian digunakan instrumen berupa tes diagnostic soal statistika dan angket resiliensi siswa. Hasil penelitian didapat kesimpulan: (1) tingkat kemampuan siswa pada soal kemampuan penalaran masih rendah; (2) kesalahan siswa pada umunya belum memahami soal dan belum memiliki daya nalar yang baik; (3) siswa masih perlu ditanamkan mathematical resilience. Adapun solusi untuk mengatasi hambatan tersebut melalui latihan atai drill soal secara terstruktur dan memberikan soal yang beragam sebagai bahan untuk berlatih. Guru  mencoba menggunakan metode yang berbeda setiap pertemuan di kelas agar siswa tidak mudah jenuh dan berlatih berpikir dan memiliki penalaran yang tinggi.
ANALISIS PENCAPAIAN 8 KOMPONEN STANDAR AKREDITASI SD/MI DI KOTA MATARAM
Authors: Haifaturrahmah Haifaturrahmah
Published: October 2019

Pada konteks pendidikan nasional diperlukan standar yang harus dicapai dalam kurun waktu tertentu dalam rangka mewujudkan tujuan pendidikan. Pelaksanaan akreditasi sekolah/madrasah merupakan cara untuk mengawasi upaya peningkatan mutu layanan pendidikan sesuai dengan standar nasional pendidikan. Oleh karena itu, pelaksanaan akreditasi menggambarkan hasil-hasil yang telah dicapai oleh sekolah/madrasah. Penelitian ini menggunakan data sekunder, yaitu data akreditasi SD/MI di Kota Mataram tahun 2014, 2015 dan 2016. Penelitian menggunakan pendekatan kualitatif dengan analisis deskriptif. Hasil penelitian menunjukkan, dari delapan standar pada sekolah/madrasah yang terakreditasi A maupun B, nilai rata-rata standar kompetensi lulusan SD/MI masih rendah dibandingkan standar lainnya, sedangkan komponen standar tertinggi adalah standar pembiayaan.
EFEKTIVITAS PEMBELAJARAN DI LUAR JAM SEKOLAH TERHADAP PRESTASI BELAJAR ANAK DI SDN 07 MATARAM (Studi Kasus pada Siswa Kelas V di SDN 07 Mataram)
Authors: Muhardini Sintayana
Published: October 2019

Penelitian ini bertujuan untuk mengetahui efektifitas pembelajaran di luar jam sekolah terhadap prestasi belajar anak di SDN 07 Mataram, Jenis penelitian ini adalah penelitian kualitatif dengan menggunakan bebagai metode yaitu metode observasi, wawancara secara langsung ke lapangan. Hasill penelitian menunjukkan bahwa : (1) Pelaksanaan pembelajaran waktu di luar jam sekolah berjalan efektif, (2) prestasi anak setelah mengikuti pembelajaran yang diadakan diluar jam sekolah tergolong baik dan memuaskan. Dapat disimpulkan bahwa penerapan pelaksanaan pembelajaran di luar jam sekolah berjalan dengan efektif, pemanfaatan waktu luang siswa di laksanakan dengan konsep yang dan pengaturan waktu yang baik dan tidak terkesan memaksakan karena kegiatan ini dilaksanakan tidak setiap hari melainkan hanya dua hari dalam seminggu, perencanaan waktu dan penggunaan metode pembelajaran yang tepat sangat di perlukan sehingga guru di tuntut untuk bisa melakukan perencanaan waktu yang tepat  dan menerapkan metode pembelajaran yang menarik agar pelaksanaan pembelajaran di uar jam sekolah dapat berjalan dengan efektif, siswa tidak merasa jenuh dan bosan sehingga minat belajar, semangat dan prestasi belajar siwa bisa meningkat.
KEPERCAYAAN RELIGIUS-MAGIS MASYARAKAT PEDESAAN KECAMATAN JEROWARU LOMBOK TIMUR-NTB (Studi Terhadap Budaya Asli Masyarakat Yang Masih Eksis)
Authors: SASMANDA SIPA
Published: October 2019

Agama dan kepercayaan merupakan unsur dari kebudayaan maka dalam hal ini akan dikaji dengan menggunakan pendekatan budaya. Untuk lebih memahami kebudayaan Indonesia yang asli terutama dalam hal kepercayaan tentu kita harus melihat perjalanannnya dari perkambangan waktu yang ada atau perkembangan sejarahnya. Tulisan ini menkaji tentang kepercayaan religius-magis masyarakat pedesaan kecamatan Jerowaru Lombok Timur-NTB. Metode penelitian ini yaitu kualitatif. Penentuan subjek penelitian dilakukan secara purposif sampling. Pengumpulan data dilakukan dengan cara pengamatan, wawancara, dan dokumnetasi.pemeriksanaan keabsahan data menggunakan metode triangulasi. Hasil menunjukkan bahwa kepercayaan religius-magis masyarakat pedesaan kecamatan Jerowaru Lombok Timur-NTB masih terikat oleh kepercayaan religuis-magis yang pernah menjadi kepercayaan nenek moyang mereka. Beberapa unsur kepercayaan religius-magis yang masih di lestarikan oleh masyarakat seperti bebubus, kekuatan supranatural dari ketobok dan kemalik, percaya pada mantra-mantra yang dapat mengakibatkan kekebalan tubuh, percaya pada pelet, senggeger serta sengasih-asih dan lain sebagainya. Religion and beliefs are an element of culture then in this case will be studied using a cultural approach. To better understand indigenous Indonesian culture, especially in the case of belief, we must see the journey from the existing time mining or historical development. This paper examines the religious-magical belief of the rural community of Jerowaru sub-district, East Lombok-NTB. The method of this research is qualitative. Determination of research subjects conducted by purposive sampling. Data collection is done by observation, interview, and dokumnetasi.per checking data validity using triangulation method. The results show that the religious-magical belief of the rural community of Jerowaru sub-district of East Lombok-NTB is still bound by the religious-magical beliefs that were once the beliefs of their ancestors. Some elements of religious-magical beliefs that are still preserved by society such as bebubus, supernatural powers of ketobok and kemalik, believe in spells that can lead to immunity, believe in pellets, senggeger and merciful-asih and so forth.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL CERITA PADA MATERI PROGRAM LINEAR DITINJAU DARI GAYA KOGNITIF SISWA
Authors: Andriyani Astri
Published: October 2019

Abstrak: Penelitian ini adalah penelitian deskriptif kualitatif. Penelitian ini bertujuan untuk mengetahui kesalahan-kesalahan yang dilakukan siswa kelas XI SMA Negeri 1 Pabelan dengan gaya kognitif field independent, field independent semi, field dependent semi , dan field dependent dalam menyelesaikan soal cerita Program Linear. Gaya kognitif diukur dengan menggunakan tes GEFT. Subjek dalam penelitian ini adalah  siswa dengan gaya kognitif FI, FIS, FDS, dan FD. Berdasarkan hasil tes dan wawancara diketahui bahwa subjek FI melakukan kesalahan teknik, subjek FIS melakukan kesalahan teknik dan konseptual, subjek FDS melakukan kesalahan konseptual dan prosedural, dan subjek FD melakukan kesalahan kesalahan konseptual, prosedural, dan teknik Abstract:  This is a qualitative descriptive research. The purpose of the research is to know the faults of eleventh grade students of SMA N 1 Pabelan in solving /finishing story questions of linear program using cognitive styles field independent, field independent semi, field dependent semi , and field dependent cognitive styles is measured by GEFT. The subject of this research is the student with FI cognitive style, FIS, FDS, and FD. Based on the result of test and interview, the subject of FI did technique fault, FIS subject did technique and conceptual fauld, FDS subject did conceptual and procedural fauld, and FD subject did conceptual, procedural, and technique fauld
PROFIL KEMAMPUAN PEMECAHAN MASALAH OPEN-ENDED PADA MATERI BANGUN DATAR SEGIEMPAT BAGI SISWA SMP
Authors: Fatwa Thursina Annisa , Sutriyono Sutriyono
Published: October 2019

Abstrak: Penelitian ini adalah penelitian deskriptif kualitatif, yang bertujuan untuk mengetahui profil kemampuan pemecahan masalah open-ended pada materi bangun datar segiempat bagi siswa SMP . Subjek  dalam penelitian ini adalah 3 siswa kelas VIII H SMP N 8 Salatiga yang memiliki kemampuan tinggi, sedang, dan rendah. Subjek  dalam penelitian ini diambil dengan teknik purposive sampling. Teknik pengumpulan data berupa tes, wawancara, dan dokumentasi. Hasil penelitian menunjukkan bahwa subjek berkemampuan sedang dan subjek berkemampuan rendah belum mampu memahami masalah, menyusun rencana pemecahan masalah khususnya soal nomor satu. Subjek berkemampuan rendah belum mampu memeriksa kembali. Abstract: This is a qualitative descriptive research. The purpose of this research is to know  the profile of open-ended problem solving in rectangular geometric shape of junior high school students. The subject of this research is 3 students of class VIII SMP Negeri 8 Salatiga who have high, medium, and low skills. The subject of this research is taken by using purposive sampling technique. The data collection techniques used were a test, interview, and documentation. The result showed that subject capable of achieving and subject capable low have not been able to understand a problem, device a plan problem solving especially about number one. Subject capable low have not been able to l ooking back.
ANALISIS TINGKAT BERPIKIR KREATIF SISWA DALAM MENYELESAIKAN SOAL LUAS GABUNGAN PADA MATERI BANGUN DATAR DI SMP NEGERI 8 SALATIGA KELAS VII
Authors: Widi Trisna Putri Margareta , Ratu Novisita
Published: October 2019

Abstrak: Jenis penelitian ini adalah penelitian deskriptif kualitatif yang bertujuan menganalisis tingkat kemampuan berpikir kreatif siswa kelas VII SMP Negeri 8 Salatiga. Subjek penelitian terdiri 3 siswa yang dipilih berdasarkan hasil tes untuk mewakili tingkat kemampuan berpikir kreatif. Teknik pengambilan sampel dilakukan dengan cara purposive. Penelitian dilakukan dengan cara tes dan wawancara. Berdasarkan hasil analisis data, dapat disimpulkan bahwa: (1) subjek yang termasuk dalam TKBK 4 (sangat kreatif), (2) subjek yang termasuk TKBK 3 (kreatif), (3) subjek yang termasuk TKBK 2 (cukup kreatif), (4) subjek yang termasuk dalam TKBK 1 (kurang kreatif), (5) subjek yang termasuk dalam TKBK 0 (tidak kreatif).Abstract:  The type of this research is done by qualitative descriptive that aims to analyze the level of creative thinking ability of the seventh grade students in SMP Negeri 8 Salatiga. The research subject is consisted of 3 students that are selected based on test results to represent the level of creative thinking ability. The sampling technique is done by purposive method. The research is done by test and interview. Based on the results of data analysis, it can be concluded that: (1) subjects that includes TKBK 4 (very creative), (2) subjects that includes TKBK 3 (creative), (3) that subjects includes TKBK 2 (creative enough), (4) subjects that includes TKBK 1 (less creative), (5) subjects that includes in TKBK 0 (not creative).
PENGEMBANGAN MODEL PEMBELAJARAN GUIDIF (GUIDED DISCOVERY DENGAN MEDIA INTERAKTIF) DALAM MENINGKATKAN HASIL BELAJAR IPA SD
Authors: Kristini Yulius , Dewi Koeswati Henny , Giarti Sri
Published: October 2019

Abstrak: : Penelitian ini bertujuan untuk (1) mengembangkan model pembelajaran Guidif untuk meningkatkan hasil belajar IPA SD. (2) mengetahui seberapa tinggi tingkat validasi produk model pembelajaran Guidif dalam meningkatkan hasil belajar IPA kelas 3. (3) mengetahui efektivitas pembelajaran Guidif dalam meningkatkan hasil belajar IPA SD.  Hasil validasi pakar desain pembelajaran memperoleh persentase 80% dengan kategori sangat tinggi, sedangkan hasil validasi pakar media diperoleh hasil persentase 90% dengan kategori sangat tinggi. Kemudian hasil pertest dan posttest mengalami kenaikan yaitu dari nilai rata-rata pretest 63,7 menjadi 79 untuk rata-rata posttest. Berdasarkan hasil respon guru diperoleh persentase sebesar 87,5% dengan kategori sangat baik dan tingkat keterimaan siswa sebesar 92,96% dengan kategori Baik.                                                                                               Abstrak: This study aims to (1) develop Guidif learning model to improve the learning outcomes of SD science. (2) to know how high the validation level of Guidif learning model products in improving the learning outcomes of science class 3. (3) to know the effectiveness of Guidif learning in improving the learning outcomes of SD science. The results of validation of the design of learning designs get the percentage of 80% with very high category, while the results of media expert validation obtained by the percentage of 90% with very high category. Then the results of pertest and posttest increased from the average value of pretest 63.7 to 79 for the average posttest. Based on teacher response result obtained by percentage equal to 87,5% with very good category and student acceptance level equal to 92,96% with Good category.