bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengembangan modul berbasis keterampilan proses sains sebagai bahan ajar dalam pembelajaran biologi
Authors: Puspita Laila
Published: December 2019

Studi ini bertujuan untuk mengetahui kemenarikan dan kelayakan dari modul berbasis keterampilan proses sains pada pembelajaran Biologi dalam materi sistem ekskresi pada manusia. Penelitian ini merupakan penelitian pengembangan atau Research and Development (R&D) yang terdiri dari tujuh langkah pengembangan, meliputi 1) potensi dan masalah, 2) pengumpulan data, 3) desain produk, 4) validasi desain, 5) revisi produk, 6) uji coba produk, 7) revisi produk. Adapun Teknik pengumpulan data menggunakan nontes berupa angket, wawancara, observasi. Instrumen yang digunakan berupa angket ahli materi, angket ahli desain media dan angket ahli bahasa dan angket respon siswa. Modul yang sudah dikembangkan divalidasi oleh 2 ahli materi, 2 ahli desain media, dan 2 ahli bahasa untuk mengetahui kelayakan produk. Hasil penilaian kelayakan modul berbasis keterampilan proses sains oleh ahli materi sebesar 92,5% dalam kategori sangat layak, penilaian oleh ahli desain sebesar 78,5% dalam kategori sangat layak, penilaian oleh ahli bahasa sebesar 90,5% dalam kategori sangat layak. Sedangkan hasil penilaian respon peserta didik memperoleh 74% dalam kategori menarik. Berdasarkan hasil penelitian ini dapat disimpulkan modul berbasis keterampilan proses sains pada pembelajaran Biologi layak dan menarik digunakan dalam materi sistem ekskresi pada manusia. Module development based on science process skills as teaching materials in biological learning AbstractThis study aims to determine the attractiveness and feasibility of modules based on science process skills in Biology learning in excretory system material in humans. This research is research and development (R & D) which consists of seven steps of development, including 1) potential and problems, 2) data collection, 3) product design, 4) design validation, 5) product revision, 6) trial products, 7) product revisions. The data collection techniques use non-test in the form of questionnaires, interviews, observations. The instruments are questionnaires for material experts, questionnaires for media design experts and questionnaires for linguists and student response questionnaires. The modules that have been developed are validated by 2 material experts, 2 media design experts, and 2 linguists to ascertain the feasibility of the product. The result of the feasibility assessment module based on science process skills by material experts is 92.5% in the very feasible category, the assessment by design experts is 78.5% in the very feasible category, the assessment by linguists is 90.5% in the very feasible category. While the results of the assessment of students’ responses are gained 74% in the interesting category. Based on the results of this study, it can be concluded that the module based on science process skills in Biology learning is feasible and interesting to be used in excretion system material in humans.
Pengaruh pembelajaran process oriented-guided inquiry learning berkonteks isu-isu sosiosaintifik dalam pembelajaran asam basa terhadap keterampilan berargumentasi siswa SMA kelas XI
Authors: Setyaningsih Arum , Rahayu Sri , Fajaroh Fauziatul , Parmin Parmin
Published: December 2019

Kemampuan berargumentasi merupakan salah satu aspek dalam kemampuan berliterasi sains. Rendahnya skor pada survei PISA siswa Indonesia menunjukkan rendahnya kemampuan mereka dalam berargumen. Untuk mengatasi masalah tersebut, penelitian ini bertujuan untuk mengetahui perbedaan keterampilan berargumentasi dan kualitas argumentasi siswa yang dibelajarkan dengan model pembelajaran Process Oriented-Guided Inquiry Learning (POGIL) berkonteks isu-isu sosiosaintifik, POGIL, dan konvensional pada materi asam basa. Rancangan penelitian adalah eksperimen semu posstest only design. Sampel terdiri dari tiga kelas di salah satu SMAN di Kota Malang. Data diperoleh dari hasil tes keterampilan berargumentasi tertulis siswa. Hasil penelitian menunjukkan adanya perbedaan yang signifikan secara statistik terhadap keterampilan berargumentasi siswa di ketiga kelas penelitian (p=0.000). Kualitas argumentasi dianalisis menggunakan kerangka analitik Osborne. Pencapaian level argumentasi siswa kelas POGIL berkonteks isu-isu sosiosaintifik lebih tinggi daripada kelas POGIL dan konvensional. The effect of process oriented-guided inquiry learning with socioscientific issue contexts on high school students’ argument skills  AbstractThe argumentation ability is one of aspect of scientific literacy. The low scores on PISA survey of Indonesian students showed their low ability in argumentation. To address this problem,  this study aims to investigate the difference of students’argumentation skills who were taught using POGIL with socioscientific issues context, POGIL, and conventional learning. Research design was quasi-experimental postest only design. The sample consisted of three classes of a public senior high school in Malang. The data were obtained from students’ written argumentation. The result of this study showed significantly different statistic on students’argumetation skills in three classes (p=0,000). The quality of students’argumetation were classified using analytical framework by Osborne. Achievement of the argument level of POGIL class students contexted sociosaintific issues higher than POGIL class and conventional class.
Efektivitas Promosi Kesehatan Menggunakan Metode Index Card Match dan Metode Visual Auditory Kinesthetic Terhadap Pengetahuan dan Keterampilan Cuci Tangan Pada Disabilitas Intelektual Ringan
Authors: Rojabtiyah Umi Rofiatun
Published: December 2019

Perilaku mencuci tangan belum menjadi kebiasaan penyandang disabilitas intelektual ringan. Diperlukan pemberian promosi kesehatan yang kreatif dan menarik agar pesan yang disampaikan dapat dengan mudah dipahami, seperti menggungakan metode Index Card Match dan Visual Auditory Kinesthetic. Tujuan dari penelitian ini adalah untuk mengetahui perbedaan efektivitas pemberian promosi kesehatan menggunakan metode Index Card Match dan Visual Auditory Kinesthetic terhadap peingkatan pengetahuan dan keterampilan cuci tangan penyandang disabilitas intelektual ringan. Penelitian ini menggunakan rancangan penelitian quasi experimental two group pretest posttest design dengan menggunakan alat ukur berupa soal pengukuran pengetahuan dan lembar pengukuran keterampilan cuci tangan. Kemudian data dianalisis menggunakan uji wilcoxon untuk mengetahui perbedaan pretest-postest dan uji mann-whitney untuk mengetahui perbedaan kelompok Index Card Match dan Visual Auditory Kinesthetic. Tidak terdapat perbedaan yang signifikan pada peningkatan pengetahuan antara kedua kelompok perlakuan dengan p value 0,311 (p>0,05). Dan terdapat perbedaan yang signifikan antara kedua kelompok perlakuan, yaitu pada kelompok promosi kesehatan metode ICM terbukti secara signifikan memiliki pengaruh yang lebih besar dengan p value 0,000 (p<0,05).
The comparative study between Indonesian blend words and English blend words
Authors: Rahmannia Mia , Widodo Pratomo
Published: December 2019

Generally, blending can be defined as combining two clipped words. Kvetko in Bednarova defines blending as a word formation process similar to shortening combined with merging two different words. There are many types of blending words both in Indonesian and English context. Therefore, the aim of this research is to analyze the comparison between Indonesian blend words and English blend words in terms of its types, its similarities and differences and also how its formed. In this paper the researcher use descriptive qualitative method as the method of the research. The source of the data is taken from some journal articles that relevant with blend words both in Indonesian and English context. The result showed that Indonesian blend words and English blend words not only have similarities in the forming word, but also have their differences that make them unique to each other. The writer hopes that the reader of this article gets more information about both Indonesian and English blend words based on its types and the similarities and the difference between them.
Educação do campo no Estado de São Paulo: análise do nível de ruralidade das escolas no desempenho escolar
Authors: Passador Cláudia Souza , Lopes José Eduardo Ferreira
Published: December 2019

Este trabalho tem como objetivo central analisar a influência da localização da escola e da origem dos alunos (rural e urbano) na taxa de evasão, na taxa de aprovação / reprovação, no desempenho obtido no Ideb e na Prova Brasil. Para tanto, foram considerados os alunos do 5º ano (quarta série) do ensino fundamental das redes municipais e estaduais do Estado de São Paulo. A tipologia do IBGE para classificação das escolas em rurais e urbanas e o local de moradia dos alunos foram utilizados como forma de caracterizar o nível de ruralidade das escolas. O trabalho organiza um diagnóstico das políticas em andamento; aponta algumas diretrizes para o aperfeiçoamento das futuras intervenções na área específica de atuação governamental; e mostra que, em várias situações, o desempenho das escolas “rurais”, considerando os itens analisados, é inferior ao desempenho das escolas urbanas.Palavras-chave: política educacional, educação, ensino público, indicador de desempenho, zona rural
A IMPLEMENTAÇÃO DO PROGRAMA BOLSA-FAMÍLIA SOB A PERSPECTIVA DA CONDICIONALIDADE EDUCACIONAL: UMA ANÁLISE A PARTIR DOS AGENTES PÚBLICOS DE BASE
Authors: Oliveira Breynner R.
Published: December 2019

Este artigo analisa a implementação do Programa Bolsa-Família na cidade de Belo Horizonte, a partir dos agentes de base (street-level bureaucrats), sob a perspectiva da condicionalidade educacional. O programa transfere uma bolsa para famílias em situação de pobreza, vinculando o pagamento ao cumprimento de co-responsabilidades nas áreas da educação e saúde. Lipsky (1980) é uma referência neste campo porque, ao analisar esse processo a partir da perspectiva dos atores que estão na ponta, assume que tais agentes exercem influência sobre essas políticas, alterando seu curso de ação. Nesta cidade, os profissionais da educação e da assistência são os que correspondem à caracterização do autor. As 31 entrevistas realizadas indicam que há tipos diferentes de interação, explicados pelas distintas percepções, valores e interpretações que esses atores constroem quando desempenham suas funções, estimulando o fortalecimento de redes de cooperação. A pesquisa revela que essa condicionalidade mobiliza os agentes de base, mesmo quando a intersetorialidade ainda é um problema institucional. Palavras-chave: Bolsa-Família; street-level bureaucracy; implementação; agentes públicos de base
Analisis Etika Kerja Islam dan Etika Penggunaan Komputer terhadap Ketidaketisan Penggunaan Komputer oleh Pengguna Teknologi Informasi di UMKM Kabupaten Bantul
Authors: Hidayah Nila
Published: December 2019

Dalam ilmu akuntansi forensik sistem informasi menjadi bagian yang tidak dapat dipisahkan, terutama mengenai etika dalam penggunaan teknologi informasi khususnya komputer sebagai media pembelajaran dan media bekerja.  Pada setiap lini perlu melakukan pengambilan keputusan secara tepat yaitu dengan melakukan investasi teknologi di dalam organisasi. Salah satunya implementasi terhadap teknologi komputer yang dapat membawa perubahan besar (perubahan yang terjadi pada cara berpikir manusia, baik dalam usaha pemecahan masalah, perencanaan, maupun pengambilan keputusan) disegala sisi kehidupan yang sedikit banyak akan berpengaruh terhadap pelaksanaan dan cara pandang manusia terhadap etika dan norma-norma dalam kehidupannya. Tujuan dari penelitian ini adalah untuk menentukan sejauh mana penggunaan komputer yang tidak etis oleh pengguna teknologi informasi. Hasil penelitian menunjukkan bahwa etika kerja (Islam) tidak berpengaruh terhadap etika penggunaan komputer. Etika penggunaan komputer berpengaruh positif terhadap ketidaketisan penggunaan komputer. Sedangkan jenis kelamin sebagai faktor moderasi tidak berpengaruh terhadap ketidaketisan penggunaan komputer. Demikian pula, pengalaman kerja sebagai faktor moderasi tidak mempengaruhi ketidaketisan penggunaan komputer
Penerapan Model Project Based Learning (PBL) Untuk Meningkatkan Kreatifitas dan Prestasi Belajar Siswa pada Kompetensi Desain Produk dan Pengemasan Karya Rekayasa Elektronika Praktis Di Kelas XII IPS2
Authors: Budi Sihono Setyo
Published: December 2019

Penelitian ini betujuan untuk mengetahui mengetahui apakah  Model Project Based Learning (PBL) dapat meningkatkan kreatifitas    dan prestasi belajar di kelas XII IPS2  MAN I Kulon progo. Subyek penelitian ini adalah siswa MAN Wates I  Kulon Progo kelas XII IPS2  sebanyak 30 siswa. Data diperoleh dengan menggunakan lembar obsevasi, analisa data menggunakan kuantitatif dan kualitatif. Dari analisa ditemukan bahwa Model Project Based Learning (PBL) dapat meningkatkan kreatifitas  dan prestasi belajar.  Terlihat terdapat peningkatan yang signifikan antara  siklus I, siklus II dan siklus III. Jumlah skor rata-rata  kreatifitas belajar pada siklus I  sebesar 55 dan  pada  siklus II sebesar 72 dan siklus III sebesar 76.  Presasi belajar juga mengalami  peningkatan yang signifikan antara  siklus I, siklus II dan siklus III. Jumlah skor rata-rata  prestasi belajar  pada siklus I  sebesar 68,33,  pada  siklus II sebesar 71,25 dan siklus III sebesar 74,86. Capaian proyek yang dilaksanakan siswa   juga mengalami  peningkatan,  pada siklus I sebesar 85,6 %,  siklus II sebesar 88,9 % dan siklus III sebesar 92,2%. 

 

Kata Kunci : Model Project Based Learning, Kreatifitas  Belajar, Prestasi Belajar  
The effect of papaya leaf extract (Carica papaya L) on healing process of buccal traumatic ulcer in wistar rats
Authors: Femilian Afryla , Agustina Dewi , Subagyo Goeno
Published: December 2019

Indonesians have been using herbal medicines for a long time to cure some illnesses. Carica papaya L is an example of an herb that contains papain enzymes, saponins, lysozymes, lipases, flavonoids, polyphenols and vitamin C. These  ingredients are believed to be beneficial for the wound healing process. The purpose of this study was to determine the effect of topical application of ethanolic extract of Carica papaya L to the healing process of rat mouth ulcer. Subjects were 32 Wistar rats divided into 2 groups (control group and treatment group), each group containing 16 rats. All subjects were made to suffer from ulcers using glacial acetyl acid applied for 40 seconds in the buccal mucosa. Treatment group was treated with papaya leaf ethanolic extract on ulcers twice a day using microbrush, while the ulcer in the control group was not treated with the extract. The ulcerated tissue was biopsied and stained with H&E. Observations were performed on the day 0, 3rd, 7th and 12th on HE slides. Data were observed by looking at three indicators of wound healing i.e. macrophage, angiogenesis and re-epithelisation. Number of macrophages and angiogenesis were analyzed using two-way ANOVA. Data of epithelial thickness were analyzed using Kruskal-Wallis test. The post hoc test in the treatment group and the control group on day 0 showed results of p = 1.00. On day 3, day 7 and day 12, the result of p was <0.05. In the treatment group on day 0 compared to the treatment group on the 3rd, 7th, 12th day, the results were p<0.05. In the treatment group on the 3rd day compared to the 7th and 12th days the results were p>0.05. The treatment group on the 7 day compared to the treatment group on the 12 day had p>0.05. In the control group, on day 0 compared to day 3, the results of p>0.05, while the control group day 0 with day 7, 12 had a result of p<0.05. The control group on the 3rd day was compared with the 7th day. The 12th also had a result of p<0.05. The comparison between the 7 day control groups showed p of >0.05. These data suggest that the papaya leaf ethanolic extract could accelerate the healing of oral ulcer on the buccal mucosa of wistar rats.
Examining African Hermeneutics and How African Biblical Scholars Have Adopted Western Tools in African Context
Authors: PAUL KOLAWOLEOLADOTUN
Published: December 2019

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COMPARACIÓN DE LA DIETA DEL CACOMIXTLE NORTEÑO, BASSARISCUS ASTUTUS DE UN BOSQUE TEMPLADO Y UN MATORRAL XERÓFILO, DEL CENTRO DE MÉXICO
Authors: Castillo-Picazo Gina Elizabet Rosina , García-Collazo Rodolfo
Published: December 2019

El presente estudio buscó profundizar en el conocimiento de la alimentación del cacomixtle norteño (Bassariscus astutus) mediante el análisis de sus excretas en dos localidades, una en un bosque de encino en el Estado de México (AST) y otra en un matorral xerófilo en Hidalgo (TDR). Se analizaron 67 excretas, obtenidas en 2007. Con el peso y frecuencia de ocurrencia de las presas consumidas se calculó el Valor de Importancia Alimentaria para conocer la importancia de cada presa. En AST se consumió 23 presas y en TDR 21 presas. Los elementos más importantes en la dieta en AST fueron los frutos del nopal Opuntia streptacantha y Opuntia megacantha, escarabajos Melolonthidae, además se presentó el consumo de desechos de alimentos de origen antropogénico que pueden tener consecuencias negativas en los organismos. Mientras que en TDR fueron los frutos de Myrtillocactus geometrizans, la rata Sigmodon hispidus y los escarabajos Melolonthidae. Existieron diferencias significativas en las presas consumidas entre temporadas en cada localidad y entre localidades. La diversidad trófica fue mayor en la temporada seca en ambas localidades, entre localidades fue similar el valor de la diversidad. B. astutus presentó una dieta omnívora, generalista y oportunista.
Invagination of the Adductor Loop of the Small Intestine into the Lumen of the Gastric Stump after Pancreatoduodenal Resection
Authors: Balitsky G. V. , Legostaev V. M. , Zema T. V.
Published: December 2019

Aim. To present a rare clinical observation of invagination of the adductor loop of the small intestine into the lumen of the gastric stump after pancreatoduodenal resection. Results. A 69-year-old patient complained of paroxysmal abdominal pain, nausea, vomiting without relief. The patient also reported an episode of black stools 7 years after pancreatoduodenal resection for pancreatic head cancer and 3 years after reconstructive surgery by performing choledochoenteroanastomosis. The invagination of the adductor loop of the small intestine into the lumen of the gastric stump was identified. The mobilization and resection of a fragment of the jejunum with an invagination zone was performed followed by suturing of the distal end of the intestine. Conclusions. Small bowel invagination after abdominal surgery occurs in 1–5% of cases. This case of invagination of the blind end of the adductor loop into the gastric stump through gastroenteroanastomosis caused an acute adductor loop syndrome in the patient. No similar cases have been reported in Russian and foreign publications.
Early Detection of Oncological Diseases of the Digestive System (Guidelines of the Russian Gastroenterological Association and the Russian Association of Oncologists for Primary Care Physicians)
Authors: Ivashkin V. T. , Mayev I. V. , Kaprin A. D. , Agapov M. Yu. , Andreev D. N. , Vodoleev A. S. , Zharkova M. Yu. , Korolev M. P. , Kucheryavyi Yu. A. , Lapina T. L. , Mayevskaya M. V. , Okhlobystin A. V. , Pavlov Ch. S. , Paraskevova A. V. , Pirogov S. S. , Poluektova E. A. , Rumyantseva D. E. , Trukhmanov A. S. , Tsarkov P. V. , Sheptulin A. A. , Shifrin O. S.
Published: December 2019

Aim. The present guidelines intended for primary care physicians are aimed at facilitating early diagnosis of malignant tumours of the digestive system, which can significantly improve the immediate and long-term results of their treatment.

General provisions. The guidelines comprise sections devoted to esophageal adenocarcinoma, esophageal squamous cell carcinoma, gastric cancer, colorectal cancer, hepatocellular carcinoma and extrahepatic bile duct and gall bladder cancer, as well as pancreatic cancer. Each section contains information on risk factors and precancerous diseases, which allows a physician to identify whether a particular patient falls into the risk group of digestive system neoplasms. It is shown how digestive system cancers can be suspected on the basis of patients’ complaints and past medical history, as well as data obtained both from a direct examination and laboratory instrumental studies. Each section offers practical algorithms in cases of suspected esophageal adenocarcinoma, esophageal squamous cell carcinoma, gastric cancer, colorectal cancer, hepatocellular carcinoma and extrahepatic bile duct and gallbladder cancer, as well as pancreatic cancer.

Conclusion. The knowledge of clinical manifestations and risk factors in the development of digestive system neoplasms allows a physician to suspect cancer and devise a timely and adequate diagnostic strategy, including laboratory and instrumental studies at specialised clinical centres.
Liver Radioembolization: a New Chapter in Russian Oncology
Authors: Kaprin A. D. , Ivanov S. A. , Kucherov V. V. , Petrosyan A. P. , Mayorov K. V. , Markov N. V. , Petrov L. O. , Davydov G. A. , Sigov M. A. , Silantieva N. K. , Berezovskaya T. P. , Usacheva A. Yu. , Sanin D. B.
Published: December 2019

Recent years have seen an increase in the number of patients with malignant tumours of the liver. In this context, new treatment methods are being actively introduced into practice, one of which is liver radioembolization utilizing microspheres embedded with yttrium-90 (90Y).

Aim. To review literature data on the history of radioembolization and its application for liver tumours.

Key findings. Annually, over 200 thousand patients with inoperable primary liver cancer and over 270 thousand patients with inoperable metastatic liver cancer are registered globally, for whom radioembolization is considered as the most suitable treatment method. 90Y is a pure beta emitter without its own gamma line, which is characterized by a small average particle path in the tissue of 2.5 mm (the maximum level is 11 mm), a maximum beta particle energy of 2.27 MeV (average energy of 0.937 MeV) and a half-life of 64.1 hours. Clinical research into microspheres containing 90Y has been actively conducted since 1977 all over the world. However, it was only in 2004 that the US FDA authorized the clinical use of glass microspheres containing 90Y for the treatment of hepatocellular cancer and liver colorectal cancer metastases. Until recently, radioembolization has not been applied in Russia. In 2018, the joint efforts of the A. Tsyb Medical Radiological Research Centre (MRRC) — branch of the National Medical Research Radiological Centre and BEBIG LLC resulted in the production of Russian microspheres containing yttrium-90, which were subsequently introduced into routine clinical practice. The first liver embolization in Russia using microspheres containing domestic yttrium-90 (BEBIG LLC) to a patient with hepatocellular cancer was carried out by V.V. Kucherov and A.P. Petrosyan at the A. Tsyb RMMC on April, 25 in 2019.

Conclusion. The production of microspheres containing 90Y in Russia, as well as a technical improvement of the procedure, will facilitate the introduction of liver radioembolization into the routine management of patients with malignant liver tumours.
The impact of minimum wage on unemployment, prices, and growth: A multivariate analysis for Turkey
Authors: Kemal Biçerli , Kocaman Merve
Published: December 2019

The aim of this study is to research the impact of minimum wage on
unemployment, prices, and growth for the Turkish economy. The data used is
monthly and covers the period from January 2005 to March 2017. The producer
price index represents prices and the industrial production index represents
growth. The Autoregressive Distributed Lag (ARDL) model is used to see the
effect of the minimum wage on these variables. An error-correction based
Granger causality test is then conducted to see short-run and long-run
causalities. The bounds test yields evidence of a long-run relationship
between variables. The obtained ARDL results also show that while the
minimum wage has a statistically significant effect on unemployment and
prices, it does not have a statistically significant effect on production.
While there is short-run causality from minimum wage to prices only, the
obtained significant error correction terms indicate long-run causality for
all of the variables. Consequently, the minimum wage plays a significant
role in increasing prices and the number of unemployed people in Turkey.
F-hypercyclic operators on Fréchet spaces
Authors: Kostic Marko
Published: December 2019

We investigate F-hypercyclicity of linear, not necessarily continuous,
operators on Frechet spaces. The notion of lower (mn)-hypercyclicity seems
to be new and not considered elsewhere even for linear continuous operators
acting on Frechet spaces. We pay special attention to the study of
q-frequent hypercyclicity, where q > 1 is an arbitrary real number. We
present several new concepts and results for lower and upper densities in a
separate section, providing also a great number of illustrative examples and
open problems.
Depth of an ideal on ZD-modules
Authors: Lotfi Parsa
Published: December 2019

Let R be a Noetherian ring, I an ideal of R and M a ZD-module. Let S be a
Serre subcategory of the category of R-modules satisfying the condition CI,
and let I contain a maximal S-sequence on M. We show that all maximal
S-sequences on M in I, have the same length. If this common length is
denoted by S-depth(I,M), then S-depth(I,M) = inf{i:ExtiR(R/I,M) ?S} =
inf{i:HiI (M)?S}. Also some properties of this notion are
investigated. It is proved that S-depth(I,M) = inf{depthMp : p ?V (I) and
R/p ? S} = inf{S-depth(p,M) : p ? V (I) and R/p ? S} whenever S is a Serre
subcategory closed under taking injective hulls, and M is a ZD-module.
On Chebyshev centers in metric spaces
Authors: Narang T.D.
Published: December 2019

A Chebyshev center of a set A in a metric space (X,d) is a point of X best
approximating the set A i.e., it is a point x0 ? X such that supy?A d(x0,y)
= infx?X supy?A d(x,y). We discuss the existence and uniqueness of such
points in metric spaces thereby generalizing and extending several known
result on the subject.
The Boole polynomials associated with the p-adic gamma function
Authors: Duran Ugur , Acikgoz Mehmet
Published: December 2019

We set some correlations between Boole polynomials and p-adic gamma function
in conjunction with p-adic Euler contant. We develop diverse formulas for
p-adic gamma function by means of their Mahler expansion and fermionic
p-adic integral on Zp. Also, we acquire two fermionic p-adic integrals of
p-adic gamma function in terms of Boole numbers and polynomials. We then
provide fermionic p-adic integral of the derivative of p-adic gamma function
and a representation for the p-adic Euler constant by means of the Boole
polynomials. Furthermore, we investigate an explicit representation for the
aforesaid constant covering Stirling numbers of the first kind.
Some integral transforms of the generalized k-Mittag-Leffler function
Authors: Qi Feng , Nisar Kottakkaran
Published: December 2019

We generalize the notion ?k-Mittag-Leffler function?, establish some integral
transforms of the generalized k-Mittag-Leffler function, and derive several
special and known conclusions in terms of the generalized Wright function
and the generalized k-Wright function.
Numerical solution of a free surface flow problem over an obstacle
Authors: Beyoud Samira , Boukari-Hernane Dahbia
Published: December 2019

We consider a free surface flow problem of an incompressible and inviscid
fluid, perturbed by a topography placed on the bottom of a channel. We
suppose that the flow is steady, bidimensional and irrotational. We neglect
the effects of the superficial tension but we take into account the gravity
acceleration g. The main unknown of our problem is the equilibrium free
surface of the flow; its determination is based on the Bernoulli equation
which is transformed as the forced Korteweg-de Vries equation. The problem
is solved numerically via the fourth-order Runge-Kutta method for the
subcritical case, and the finite difference method for the supercritical
case. The results obtained are illustrated by several figures, where the
height h of the obstacle, and the value of the Froude number F of the flow,
are varied. Note that different shapes of the obstacle have been considered.
Clinical Evaluation of Noncarious Cervical Lesions of Different Extensions Restored With Bulk-fill or Conventional Resin Composite: Preliminary Results of a Randomized Clinical Trial
Authors: Correia AMO , Jurema ALB , Andrade MR , Borges ALS , Bresciani E , Caneppele TMF
Published: December 2019

Purpose:

This randomized clinical trial evaluated the influence of the occlusogingival distance (OGD) of noncarious cervical lesions (NCCLs) on the clinical performance of a regular bulk-fill resin composite and a regular nanofilled resin composite.

Methods and Materials:

A total of 140 restorations were randomly placed in 77 participants by one operator. NCCLs were divided into four groups (n=35) according to OGD (1.5 mm±10% or 3 mm±10%) and resin composites (Filtek Bulk Fill Posterior [B] or Filtek Z350 XT [C]) used: 1.5 mm-B, 1.5 mm-C, 3 mm-B, and 3 mm-C. A two-step self-etch adhesive (Clearfil SE Bond) was applied following manufacturer instructions in all restorative procedures. Restorations were polished 1 week after placement. Clinical evaluation was performed at baseline (7 days), 6 months, and 1 year by two calibrated examiners, according to the modified US Public Health Service criteria evaluating fractures/retention, marginal staining, marginal adaptation, recurrence of caries, anatomic form, postoperative sensitivity, and surface texture. The Kruskal-Wallis test was used for intergroup comparison in each follow-up; the Friedman analysis of variance, followed by the least significant difference test (multiple comparisons) was used for intragroup comparison between baseline and follow-up times (α=0.05).

Results:

Two restorations were lost at 12 months (1 for 1.5 mm-B and 1 for 3 mm-B). The retention rates at 12 months were 100% for 1.5 mm-C, 97% for 1.5 mm-B, 100% for 3 mm-C; and 97% for 3 mm-B, with no statistical difference among the groups (p=0.570). At 12 months, a statistically significant difference was found among the follow-up times for the same group (1.5 mm-B, 1.5 mm-C, and 3 mm-B) regarding the marginal staining criterion; moreover, the 3 mm-C group showed a significant difference from 6 months. No significant difference was found for the other parameters.

Conclusion:

Both resin composites showed acceptable clinical performance, and the OGD of NCCLs did not influence the clinical performance of resin composite restorations after 12 months.
Effects of Bioactive Agents on Dentin Mineralization Kinetics After Dentin Bleaching
Authors: Ubaldini ALM , Pascotto RC , Sato F , Soares VO , Zanotto ED , Baesso ML
Published: December 2019

Objectives:

This study evaluated effects of Bioglass 45S5 (BG) and Biosilicate (BS) remineralization on the chemical composition and bond strength of control dentin (CD) and bleached dentin (BD) surfaces.

Methods and Materials:

Dentin bleaching treatment was performed using the walking bleaching technique with 0.01 g of sodium perborate and 0.5 mL of 3% hydrogen peroxide for 14 days. Remineralization treatment was carried out by rubbing a remineralization solution (0.015 g of BG or BS diluted in 1.35 mL of distilled water) on the etched dentin surface for 30 seconds. Micro-Raman spectroscopy (MRS) was used to quantitatively analyze the mineral matrix ratios of CD and BD (n=5) after remineralization treatment with BG and BS over 15 days of incubation in artificial saliva. The CD and BD discs (n=10) with and without remineralization treatment with BG and BS were restored using a two-step etch-and-rinse adhesive system (Optibond S, Kerr) and five layers of 1-mm-thick composite resin (Filtek Z250, 3M ESPE). The restored dentin discs were sectioned into nine bonded beams with cross-sectional areas of approximately 0.9 mm2 and tested for microtensile bond strength (μTBS). The dentin surface of one fractured beam per tooth was submitted to MRS to characterize the physicochemical composition (n=10) at the interface. The data were analyzed using one-way analysis of variance and the Tukey-Kramer post hoc test (p<0.005).

Results:

MRS bioactive analyses revealed that both BG and BS promoted increased mineral matrix ratios in the CD and BD. Significantly higher μTBS values were found after CD treatment with BG (CD: 57 MPa±11; CD-BG: 78 MPa±15) and when BG and BS were applied to the BD (BD: 42 MPa±5; BD-BG: 71 MPa±14; BD-BS: 64 MPa±11) (p<0.005). The MRS analysis of the fractured dentin beam showed that the remineralization treatment significantly increased the dentin relative mineral concentration and promoted the appearance of new interface peaks, indicating a chemical interaction (p<0.005).

Conclusion:

Remineralization of BD is an effective therapy to restore damage caused by dentin bleaching and acid conditioning. This approach not only increases dentin mineral compounds but also improves dentin's ability to interact chemically with the adhesive system.
Influence of Multiple Peak Light-emitting-diode Curing Unit Beam Homogenization Tips on Microhardness of Resin Composites
Authors: Soto-Montero J , Nima G , Rueggeberg FA , Dias CTS , Giannini M
Published: December 2019

This study evaluated the effect of light curing unit (LCU) guide type (regular or homogenizing) on top and bottom microhardness of conventional and bulk-fill resin-based composites (RBCs). A polywave light-emitting-diode (LED) LCU (Bluephase Style, Ivoclar Vivadent AG) was used with two different light guides: a regular tip (RT, 935 mW/cm2 emittance) and a homogenizer tip (HT, 851 mW/cm2 emittance). Two conventional RBCs (Herculite Ultra [HER], Kerr Corp; Tetric EvoCeram [TEC], Ivoclar Vivadent AG) and two bulk-fill RBCs (SonicFill [SOF], Kerr Corp; Tetric EvoCeram Bulk Fill [TBF], Ivoclar Vivadent AG) were tested. Disc-shaped samples (10 mm Ø), 2-mm thick for conventional composites and 4-mm thick for bulk-fill composites were prepared. Samples were light cured according to manufacturer-recommended times. Knoop microhardness values (KHN) were obtained on the top and bottom surfaces of each specimen at locations correlated with the output of the three LED chips emitting blue (456 nm) or violet light (409 nm). Beam profile analysis using both light guides was also performed. Microhardness of each composite was analyzed using three-way analysis of variance and Tukey honestly significant difference post hoc test (α=0.05). Beam profile images showed better light distribution across the surface of the HT light guide. Use of the HT decreased KHN of HER at the locations of the blue LED chips at bottom of the sample but had no effect on the top surface. For TEC, use of HT increased KHN of all three LED locations at the top surface. Use of the HT increased KHN of SOF at locations corresponding to one of the blue and the violet LED chips at the bottom surface. For TBF, HT increased KHN at all top surface locations. All RBCs showed higher mean KHN at the top compared with the bottom surfaces. In general, all composites presented a higher KHN at the blue LED areas regardless of the surface or the tip used. Results suggest that the homogenizer light guide resulted in significantly increased microhardness at the top, in composite resins containing alternative photoinitiators; however, that effect was not observed at the bottom surfaces.
Differences in Radiopacity, Surface Properties, and Plaque Accumulation for CAD/CAM-Fabricated vs Conventionally Processed Polymer-based Temporary Materials
Authors: Nassary Zadeh P , Lümkemann N , Eichberger M , Stawarczyk B , Kollmuss M
Published: December 2019

Clinical Relevance

As temporary materials are often used in prosthetic dentistry, there is need to investigate their behavior in the oral environment. Parameters such as surface roughness and surface free energy correlate to the level of plaque adhesion, which can impact gingival health.

Objective:

To test computer-aided design/computer-aided manufacturing (CAD/CAM)-fabricated and conventionally processed polymer-based temporary materials in terms of radiopacity (RO), surface free energy (SFE), surface roughness (SR), and plaque accumulation (PA).

Methods and Materials:

Six temporary materials (n=10/n=10) were tested, including three CAD/CAM-fabricated (CC) materials—Art Bloc Temp (CC-ABT), Telio CAD (CC-TC), and VITA CAD Temp (CC-VCT)—and three conventionally processed (cp) materials: Integrity Multi Cure (cp-IMC), Luxatemp Automix Plus (cp-LAP), and Protemp 4 (cp-PT4). Zirconia acted as the control group (CG, n=10). RO was evaluated according to DIN EN ISO 13116. SFE was investigated using contact angle measurements. SR was measured using a profilometer. The PA tests were performed using three microorganisms: Streptococcus mutans, Actinomyces naeslundii, and Veillonella parvula. Data were analyzed using Kolmogorov-Smirnov, Kruskal-Wallis, Mann-Whitney U-, Dunn-Bonferroni, Wilcoxon, Levene, and Pearson tests and one-way analysis of variance with post hoc Scheffé test (α=0.05).

Results:

No radiopacity was observed for any CC material or cp-PT4. CG showed the highest RO, while no differences between cp-IMC and cp-LAP were found. CG showed lower SFE compared to all polymer temporary materials, except in the case of CC-TC. cp-LAP and cp-IMC presented higher SFE than did CC-TC and CG. CC-ABT presented lower initial SR values compared to cp-PT4 and cp-LAP. For cp-LAP, a higher initial SR was measured than for all CAD/CAM materials and cp-IMC. All specimens showed a certain amount of PA after the incubation period. A naeslundii and V parvula resulted in comparable PA values, whereas the values for S mutans were lower by one log level. CAD/CAM materials showed superior results for SR, SFE, and PA, whereas all materials lacked RO.
Restoran İşletmelerinde Gıda İsrafının Önlenmesi ve İhtiyaç Fazlası Yemeğin Değerlendirilmesine Yönelik Bir Mobil Uygulama Modelinin Geliştirilmesi: LUSE
Authors: Erik Uğurcan , Pekerşen Yeliz
Published: December 2019

Gıda israfı, günümüzde
artarak devam eden en büyük sorunlardan birisidir. Türkiye’de ya da dünyadaki
diğer ülkelerde, gıda israfını azaltmaya yönelik çeşitli kuruluşlar faaliyet
gösterse de sorunun tam olarak üstesinden gelinememiştir. Bu doğrultuda
toplumun ciddi biçimde eğitilmesi ve gıda israfının hem kendilerine hem de ülke
ekonomisine ne tür zararlar verdiğinin genel hatlarıyla insanlara kavratılması
gerekmektedir. Bu çalışmanın amacı özellikle Türkiye’de gıda israfına dikkat
çekmek ve engellenmesine katkıda bulunmaktır. Bu yüzden “Luse” adında bir mobil
uygulama oluşturulmuş, restoranlarda ihtiyaç fazlası yemeğin değerlendirilmesi
amaçlanmıştır. Bu uygulama, kullanıcılar tarafından 19 Ocak 2019 ile 23 Nisan
2019 tarihleri arasında 20 defa indirilmiştir. Kullanıcılardan olumlu yorumlar
alınmış, geliştirmeler ya da yeni özelliklerin eklenebilmesi için alınan geri
dönüşler ile eklentiler gerçekleştirilmiştir. Yorumların olumlu ve gelen
oyların yüksek düzeylerde yoğunlaşmış olması kullanıcıların büyük çoğunluğunun
uygulamayı beğendiğinin bir göstergesidir.
Effects of Online Course Load on Degree Completion, Transfer, and Dropout among Community College Students of the State University of New York
Authors: Shea Peter , Bidjerano Temi
Published: December 2019

Research suggests that some students are at risk of lower levels of academic performance when studying online compared to students who take coursework only in the classroom.  Community college students appear to be among those that struggle in online settings.  In this paper, we hypothesize that online course load may influence outcomes for such students, especially those at risk for lower levels of degree attainment.  To examine this, we conducted a statewide study using data from the 30 community colleges (n=45,557) of the State University of New York, to understand online course-load effects on degree completion, transfer, and dropout. We conclude that when controlling for covariates known to impact degree completion, on average, community college students who successfully complete online courses nearly double their chances (odds ratio=1.72) of earning a degree or transferring to a 4-year college. However, racial minority students had reduced outcomes and additional research is warranted.
Educational Leadership Doctoral Students’ Perceptions of the Effectiveness of Instructional Strategies and Course Design in a Fully Online Graduate Statistics Course
Authors: Jiang Mei , Ballenger Julia , Holt William
Published: December 2019

In the past several decades, higher education has witnessed exponential growth of online learning, as well as the need for it. New technology has dramatically transformed the way education is delivered compared to what takes place in the traditional classroom. It has enabled online delivery of course materials to students outside of face-to-face classroom in an asynchronous manner and provide students with self-paced flexibility at their convenience. Given the abstract nature of statistics content, effectiveness of the instructional strategies and course design in online statistics instruction has become particularly important to students’ learning success. In this qualitative study, the authors explored perceptions of the Educational Leadership doctoral students towards an online graduate level introductory statistic course in terms of whether the online course instructional strategies and course design helped them learn statistics. The authors assessed effectiveness of the instructional strategies and design of the online statistics course as well as students’ needs, so more effective instructional strategies could be used for online statistics teaching. Students identified the PowerPoint presentations with recorded lectures to be the most useful strategy. This strategy, along with live Q&A sessions, guided practice and activities, helped make the textbook information more real-world and connected the elements of statistics to application.
An Examination of Instructional Approaches in Online Technical Education in Community Colleges
Authors: Horvitz Brian Samuel , Garcia Lisa R , Garza Mitchell Regina , Calhoun Cheryl D
Published: December 2019

Technical education programs in community colleges prepare students for many science and engineering-based jobs in the United States. An increasing number of technical education programs in community colleges are using online learning tools to teach courses. However, little is currently known about the ways these programs are integrating online learning in their coursework. This study examined fifteen National Science Foundation funded technical education programs that use online learning to partially or entirely deliver their courses. We conducted semi-structured interviews with key personnel from each project. Through analysis of this data, we found that technical education programs used a variety of instructional delivery approaches that can be categorized as follows: (a) a hybrid or blended course with asynchronous online lectures; (b) a hybrid or blended course with synchronous lectures; (c) a hybrid or blended course with a combination of asynchronous and synchronous lectures and discussions; or (d) a course that is fully online. We also found that online or hybrid technical education programs used a variety of different methods to give students experience in their field of study that can be categorized as follows: (a) pre-recorded video; (b) live video; (c) simulations; (d) equipment at home; (e) equipment in lab; and (f) professional site experience. We recommend that future research examine how well these approaches are working, incorporate student perceptions, and incorporate the views of employers of these programs’ graduates.
How College Students’ Achievement Goal Orientations Predict Their Expected Online Learning Outcome: The Mediation Roles of Self-Regulated Learning Strategies and Supportive Online Learning Behaviors
Authors: Yeh Yu-Chen , Kwok Oi-Man , Chien Hsiang-Yu , Sweany Noelle Wall , Baek Eunkyeng , McIntosh William
Published: December 2019

The purpose of this study was to examine the underlying mechanism between goal orientations and academic expectation for online learners. We simultaneously studied the structural relationships among 2×2 achievement goal orientations, self-regulated learning strategies (SRL), supportive online learning behaviors, and expected academic outcome in various online courses with 93 respondents (70 undergraduate and 23 graduate students). Specifically, we tested the mediation effects of both self-regulated learning strategies and supportive online learning behaviors on the relation between achievement goal orientations and students’ academic expectations. The results showed that two of the achievement goal orientations – mastery-approach goals (MAP) and mastery-avoidance goals (MAV) – predicted the adoption of the self-regulated learning strategies and supportive online learning behaviors, which, in turn, predicted students’ expected academic outcome for their online course. Specifically, students with higher mastery-approach goals were more likely to adopt different types of self-regulated learning strategies and supportive online learning behaviors to facilitate their learning experience, which further enhanced their expectation for their academic outcome. By contrast, students with higher mastery-avoidance goals were less likely to adopt self-regulated learning strategies and supportive online learning behaviors, which, in turn, led to lower grade expectations.
Pengembangan Model Internalisasi Nilai Kesenian Dongkrek Guna Meningkatkan Ketahanan Budaya Siswa SMA Kabupaten Madiun
Authors: Hanif Muhammad , Hartono Yudi , Wibowo Anjar Mukti
Published: December 2019

Penelitian ini bertujuan untuk menganalisis dan mendeskrisikan nilai-nilai Kesenian Dongkrek dan merumuskan model internalisasinya yang tepat guna meningkatkan ketahanan budaya pada siswa SMA Kabupaten Madiun. Subyek penelitiannya adalah seniman Dongkrek, guru, dan siswa kelas X SMA Kabupaten Madiun. Penelitian ini dilaksanakan tahun 2018-2019 dengan menggunakan metode R&D. Prosedur pengembangan model internalisasi nilai yang digunakan mengadaptasi model pengembangan Gall, Gall, dan Borg. Model yang dikembangkan dianalisis dengan kriteria teoritis (penilaian ahli dan praktisi) dan kriteria secara praktis (hasil pengujian terbatas dan luas). Teknik pengujiannya menggunakan model single one shot case study dan analisis keefektivitasannya menggunakan statistik deskriptif. Hasil penelitian menggambarkan bahwa Kesenian Dongkrek mengandung nilai-nilai keutamaan dan berpotensi sebagai sumber memperkokoh ketahanan nasional dengan Model Nampe. Model Nampe secara teoritis layak digunakan untuk meningkatkan ketahanan budaya. Model ini secara praktis juga menunjukkan hasil positif dan lebih efektif dalam menginternalisasi nilai kesenian Dongkrek dalam meningkatkan ketahanan budaya siswa SMA Kabupaten Madiun.
Analisis Semiotik dalam Memahami Bahasa Agama di Era Globalisasi
Authors: Setia Eddy , Surip M
Published: December 2019

In linguistic studies, semiotics is perceived as a sign composed of two inseparable elements, namely signifiant and signifier. Signifiant is a linguistic material whereas signifier is a concept in mind. Language is metaphorical and, hence, the meaning it produces fluxes in accordance with its context. By such logic, if a religious language is a collection of texts (signs) then it does not contain an ultimate meaning. Therefore, under this context semiotics plays its significant role in which the religious texts bear new understandings to actualize the universal Islamic messages and bring the mission of mercy for the universe (rahmatan lil ‘alamin).