bluuebunny/crossref_metadata_2025 huggingface dataset:
COMPUTER DIAGNOSTICS OF PROSPECTIVE TEACHERS’ READINESS FOR PROFESSIONAL SELF-DEVELOPMENT
Authors: Gurevych Roman S. , Frytsiuk Valentyna A. , Dmytrenko Nataliia Ye.
Published: February 2019

The authors developed and tested diagnostic instruments (a computer testing system) aimed at the identification of prospective teachers’ readiness for continuous professional self-development by the following criteria: the awareness of necessity for purposeful continuous professional self-development; the level of acquired professional knowledge, integrative and theoretical training; the formation of abilities and practical skills for professional self-development; practical training; a set of individual and psychological qualities important for continuous professional self-development and future professional activity in general; the focus on self-analysis, self-assessment of professional self-development. The developed survey “Diagnostics of Readiness for Professional Self-development” includes original parts of questionnaires and tests, which were creatively redesigned and adapted according to the research. Among them: “Dispositive Characteristic of Self-development of Personality”, “Diagnostics of Success Motivation”, “Diagnostics of Self-development Needs”, “Motivation of Professional Activity”, Cattell’s 16 PF-questionnaire, and others. For the purpose of implementing the authors’ concept, the technology of prospective teachers’ training for continuous professional self-development is developed. This technology is considered to be a system of contents, principles, methods, forms, substantiated organizational and pedagogical conditions that provides implementation of the authors’ concept and guarantees achievement of the planned results – increasing the level of prospective teachers’ readiness for continuous professional self-development. After the implementation of the technology, the computer diagnostics was applied again. The results of the final diagnostics showed the effectiveness of the training technology of the prospective teacher for continuous professional self-development and the computer method “Diagnostics of Readiness for Professional Self-development”.
COMPETENCY CONCEPTS ANALYSIS IN THE SYSTEM OF COMPUTER MODELING OF EDUCATIONAL TASKS
Authors: Bogachkov Yurii M. , Ukhan Pavlo S. , Yutsevych Iryna S.
Published: February 2019

The article discusses the necessity of creating competency based tasks for computer educational models. This requires clarification of competency concept as well as the methods of its measurement. Several approaches to understanding competency and its definition have been analyzed. It is obvious that the majority of those do not describe development of measurement instruments for competency levels. Some of the discussed approaches make it possible to split the competency into separate components and consider the activities leading to upgraded competencies. The author provides definitions of competency and competency level. Competency is a mental construct which is a certain unity of a person’s skills required within definite context of activity for a definite set of possible tasks. Competency always describes “unity of two” – 1) set of tasks in the context; 2) the performer. Competency level is an index, characterizing the probability of successful performing of the task (on the given level) out of a definite set (variety) of tasks in the defined context by the definite performer. The experimental and indirect methods of competency measurement have been described. It is possible to view the construction of the competency from two different points: which parts (ingredients) and which components it includes. Parts (ingredients) are knowledge, skills, behaviours, attitudes, etc. Components are minor competencies aimed to solve minor auxiliary tasks. Thus, in order to solve a competency task it is necessary to solve a few easier tasks which would complete some zones of competency. The proposed approach describes the theory of competency level and structure measurement being a basis for competencies forming management. The mentioned approach requires more detailed development which is viewed as the matter of further research and publications.
APPLICATION OF ICT FOR EXPERT ASSESSMENT OF LATENT VARIABLES IN PSYCHOLOGICAL AND PEDAGOGICAL RESEARCH
Authors: Matvieieva Olha O. , Gryniova Valentyna M. , Kuznetsova Olena Yu.
Published: February 2019

The article analyzes the approaches to the study of latent variables in psychological and pedagogical research. The study confirms that some competences and personal qualities belong to the latent constructs (tolerance, readiness for life-long learning, value orientations, etc.) that are difficult to measure. To make their assessment more accurate and reliable, the expert evaluation method with ICT support is suggested providing for the involvement of a greater number of experts in the assessment process. The pedagogical expertise, covering a set of procedures necessary for getting collective expert opinion or assessment of a pedagogical object, phenomenon or process, is considered as the core of the expert evaluation method. The developed ICT assessment support for latent variables evaluation is oriented at the three-level classification of competences. It provides for determining the level of development of social-personal, general-scientific, instrumental, general-professional and specialized-professional competences (the first level of classification) and their constituent structural parts (the second level of classification) as well as the level of acquired knowledge, skills, values and personal qualities (the third level of classification). The developed ICT assessment tool includes the data concerning the Author (Developer), Experts, Expert Assessment, the indices obtained as a result of the analysis of Expert Assessment (Coefficients). Experts are expected to assess the significance of smaller structural units correlating them with the larger ones. Initially, the development level of every individual competence in correlation with the social and professional competence is assessed in percentage; the acquisition of social and professional competence is taken as 100%. Then the significance index of the competences that are the structural parts of every given competence is determined; the significance index of competence structural parts in reference to the relevant competence is assessed.
Desenvolvimento de plataforma embarcada para ensino
Authors: Silva Fábio Rocha da , Mattos Augusto Cesar Rossi de , Marcatto Gabriel Silva , Moreira Rafael de Moura , Almeida Rodrigo Maximiano Antunes de
Published: February 2019

Este trabalho tem como objetivo o desenvolvimento de uma plataforma embarcada que possa guiar os primeiros passos de um aluno na área de programação embarcada. É descrito o desenvolvimento de um pacote de software para suporte ao aprendizado de programação embarcada, principalmente fazendo o uso de sistemas operacionais de tempo real, bem como documenta as atividades iniciais da plataforma PQDB (Pão de Queijo Development Board). As técnicas de desenvolvimento para sistemas embarcados não são as mesmas das aplicadas em desktops e mainframes. Existem restrições de memória, capacidade limitada de processamento, gerenciamento dos dispositivos de entrada e saída, protocolos de comunicação diversos, isto porque cada sistema embarcado é um projeto diferente que pode não seguir padrões, dessa maneira o conhecimento do hardware é essencial para o projeto do software que será incorporado no dispositivo. As implementações práticas foram realizadas com a ferramenta Kinetis Design Studio 3 ® IDE, o sistema operacional FreeRTOS®, a placa de desenvolvimento FRDM-K64F da NXP e a PQDB projetada e fabricada na Universidade Federal de Itajubá. Neste trabalho apresentamos como esta placa auxilia no aprendizado do aluno em software embarcado, apresentando um guia rápido de como portar o FreeRTOS além de desenvolver bibliotecas e drivers para comunicação com periféricos. Conclui-se que a utilização de uma placa pré-montada simplifica o entendimento do aluno na medida que remove camadas de complexidade da atividade de aprendizagem. O mesmo acontece com a utilização de um sistema operacional de tempo real, que abstrais as questões de restrições de tempo para sistemas críticos. Também se notou que a placa PQDB oferece diversos recursos que, se bem explorados, garantem um ótimo início na área de desenvolvimento de softwares embarcados.
Observatorios & laboratorios de comunicación
Authors: Valle Flórez Mónica María
Published: February 2019

En Iberoamérica los observatorios de información, comunicación y cultura, tienen una amplia representación; entre sus objetivos está el análisis de medios y fenómenos comunicacionales, integración de información para la toma de decisiones, generación y difusión de publicaciones, entre otros. Además de esta figura está la de los laboratorios de comunicación cuya finalidad es la consultoría, investigación aplicada y el desarrollo e implementación de procedimientos, métodos, herramientas y estrategias de comunicación.
El rol de la universidad en los clusters: indicadores de capital relacional e innovación. casos de Argentina, Brasil y España
Authors: De Archete Mónica , Santucci Marina , Welsh Sandra Vanessa
Published: February 2019

El artículo describe el rol de la universidad en los espacios de cooperación en general y en los clusters en particular así como las diferentes estructuras para su vinculación: incubadoras, parques y polos tecnológicos; desarrolla las distintas teorías económicas que fundamenta los clusters. Propone indicadores para el análisis de la gestión del conocimiento en los clusters con base en el Modelo Club Intelect: capital humano, estructural, relacional, organizacional. Presenta el análisis, realizado con dicho Modelo, a algunos clusters localizados en España (País Vasco), Brasil y Argentina [1].

Entre las conclusiones se encuentra que en Argentina el rol de la Universidad es formar profesionales altamente capacitados y la transferencia de tecnología. En el caso de Brasil, se indica que la Universidad mejora la asimetría del conocimiento por medio de diferentes cursos y capacitaciones que brinda a las empresas y que su rol también implica generación de innovación, investigación y el desarrollo de incubadoras de empresas, lo cual realiza por medio de la unidad de gestión Tecnosinos.

En el caso de España se indica que el rol que cumple la universidad en el cluster se define como relacional, lo que implica que el valor de la universidad en el cluster, está dado por el conjunto de relaciones que mantiene con el entorno lo que favorece la integración. Aporta capital de innovación al sistematizar y modelizar conocimiento surgido del cluster. Realiza acciones que comprenden publicaciones, organización de ferias de empresas y también desarrollo de proyectos conjuntos de investigación [2].
De audiencias a prosumidores. Acercamiento conceptual
Authors: Benassini Felix Claudia
Published: February 2019

Las audiencias contemporáneas reciben constantemente emisiones mediáticas desde distintos dispositivos, así como información de múltiples fuentes no mediáticas, en este panorama, conceptos como el de interactividad, convergencia, mediación e hipermediación son base para el diseño de estrategias de alfabetización digital. En este artículo se aborda el tema de las audiencias desde las aportaciones de los estudios culturales de recepción, así como de la sociedad “multipantallas” en la que surge la convergencia, como detonador de nuevos procesos de recepción mediática, toda vez que anima a los consumidores a buscar nueva información y establecer conexiones entre contenidos mediáticos dispersos. Se profundiza en las audiencias activas y los prosumidores. Ello, como reflexión inicial de las categorías conceptuales del proyecto alfabetización digital que tiene en ejecución la autora en la Universidad La Salle de Ciudad de México.
Determinan Partisipasi Keluarga Berencana Pada Keluarga Pra Sejahtera di Provinsi Sumatera Selatan: Survei Demografi dan Kesehatan Indonesia
Authors: Febria Dio
Published: February 2019

Jumlah penduduk yang besar di Indonesia memberikan dampak negatif antara lain, masalah kesehatan, kemiskinan, pengangguran, dan kriminalisasi. Program Keluarga Berencana (KB) memiliki implikasi dalam menurunkan angka kelahiran untuk mensejahterakan masyarakat. Pada tahun 2012, angka partisipasi KB keluarga pra sejahtera di Provinsi Sumatera Selatan yaitu sebesar 24 persen lebih besar dibandingkan keluarga sejahtera I, II, III, dan III+. Maka dari itu, tujuan penelitian ini adalah menganalisis faktor-faktor apa saja yang menentukan partisipasi KB pada keluarga pra sejahtera di Provinsi Sumatera Selatan. Penelitian ini merupakan analisis kuantitatif, menggunakan data sekunder dari Survei Demografi dan Kesehatan Indonesia (SDKI) 2012 dengan metode analisis regresi logistik. Hasil penelitian menunjukkan bahwa dua variabel yang berpengaruh signifikan terhadap partisipasi KB pada keluarga pra sejahtera yaitu jumlah anak dan usia suami, dengan nilai koefisien jumlah anak adalah positif yang berarti semakin banyak anak (> 2 anak) maka semakin tinggi peluang istri untuk berpartisipasi KB. Nilai koefisien usia suami adalah negatif yang artinya semakin muda usia suami maka semakin tinggi peluang istri untuk berpartisipasi KB. Sementara variabel lain yaitu: usia istri, pendidikan istri, partisipasi istri dalam bekerja, tempat tinggal, ukuran keluarga ideal, komunikasi suami istri, dan kunjungan petugas KB tidak secara signifikan menentukan tingkat partisipasi KB seorang istri. Pemerintah seharusnya mensosialisasikan program keluarga berencana sejak awal pernikahan, agar keluarga pra sejahtera berpartisipasi KB sebelum memiliki banyak anak. Selain itu, perlu penelitian lebih lanjut terkait efektivitas alat kontrasepsi yang paling banyak digunakan (pil dan suntik KB) pada keluarga pra sejahtera.

 Kata Kunci: keluarga berencana, keluarga pra sejahtera, jumlah anak, usia suami
Faktor Yang Mempengaruhi Rumah Tangga Untuk Mengakses Lembaga Keuangan Formal: Studi Kasus SUSENAS 2015
Authors: Ngasuko Tri Achya
Published: February 2019

Bank Dunia pada tahun 2014 melaporkan hanya 36% penduduk Indonesia memiliki akses ke lembaga keuangan formal. Angka ini menunjukkan tingkat keuangan inklusif di Indonesia. Masih ada tugas yang harus dilakukan karena pemerintah Indonesia karena Pemerintah bertujuan meningkatkan tingkat keuangan inklusifnya menjadi 70% pada tahun 2019. Survei BPS, yaitu Susenas 2015, memiliki informasi baru tentang profil tabungan rumah tangga. Informasi ini tidak tersedia dalam survei Susenas sebelumnya. Studi ini adalah yang pertama yang menguji faktor-faktor penentu yang menghalangi keluarga dari akses ke layanan keuangan formal, terutama tabungan berdasarkan Susenas 2015. Hasil dari penelitian ini memberikan profil rumah tangga dan mengidentifikasi faktor penentu untuk rumah tangga untuk mengakses lembaga keuangan formal, khususnya tabungan. Dengan menggunakan metode multinomial logit, probabilitas bagi rumah tangga untuk mendapatkan tabungan di lembaga formal dipengaruhi oleh karakteristik demografi seperti usia, jumlah anggota keluarga, tanggungan anak-anak dan orang tua dalam rumah tangga. Pendidikan, pekerjaan, dan sektor lapangan kepala rumah tangga, serta status kredit dan lokasi kepala rumah tangga sebagai faktor penentu bagi kepala keluarga untuk membuka rekening tabungan di lembaga keuangan formal. Temuan penelitian ini sangat penting dalam memberikan rekomendasi kebijakan untuk meningkatkan tingkat keuangan inklusif di Indonesia.
EFEKTIVITAS ALAT PERAGA “KARPET KIMIA” DALAM PEMBELAJARAN STRUKTUR ATOM DAN SISTEM PERIODIK UNSUR
Authors: 1 Ruslan , 2 Putri Ayu Mutmainnah
Published: February 2019

Pembelajaran kimia menekankan pemberian pengalaman belajar secara langsung melalui penggunaan pengembangan keterampilan proses dan sikap ilmiah. Pada materi pembelajaran kimia SMA kelas X terdapat materi pokok Struktur Atom dan Sistem Periodik Unsur. Materi ini merupakan materi yang bersifat abstrak namun dapat dikonkritkan sehingga dapat diterapkan dalam pendekatan pembelajaran alat peraga. Penelitian ini dilakukan terhadap siswa kelas X SMA Negeri 2 Soromandi sebagai tidak lanjut dari hasil penilaian proses pembelajaran pada materi pokok Struktur Atom dan Sistem Periodik Unsur. Dari hasil penilaian tersebut diperoleh bahwa sebanyak 16 siswa atau sekitar 69,5% belum mencapai standar ketuntasan dan sebanyak 7 siswa atau sekitar 30,5% sudah mencapai ketuntasan minimal yaitu 70 dengan nilai rata-rata sekitar 51,7. Oleh karena itu, perlu dilakukan suatu langkah pembelajaran yang dapat mengatasi masalah tersebut yaitu dengan menggunakan media alat peraga kartu dan peta kimia  atau disebut KARPET KIMIA. Penggunaan alat peraga KARPET KIMIA telah dilakukan pada materi pembelajaran Struktur Atom dan Sistem Periodik Unsur terhadap siswa kelas X SMA Negeri 2 Soromandi tahun pelajaran 2016/2017. Hasil penilaian tugas sebelum penggunaan alat peraga, jumlah siswa yang belum memenuhi kriteria ketuntasan yaitu 16 siswa atau 69,5%. Sesudah menggunakan alat peraga KARPET KIMIA, jumlah siswa yang belum tuntas sebanyak 2 siswa atau 8,7% sedangkan yang sudah memenuhi kriteria ketuntasan sebanyak 21 siswa atau 91,3%. Dari hasil tersebut diperoleh bahwa penggunaan alat peraga KARPET KIMIA sangat efektif untuk meningkatkan hasil belajar siswa pada materi Struktur Atom dan Sistem Periodik  Unsur.
The Students' Perspective on the Use of Facebook in Writing Class
Authors: Ali Bunyamin , Rahman Abd
Published: February 2019

Technology nowadays has many functions in our life. This study aims to explore the students’ perspective on the use of Facebook in a writing class. This study was conducted at English Department, Faculty of Education, State Islamic College (STAIN) of Sorong, West Papua, Indonesia. Ten students of English Education Department (TBI) participated in this study. This study employed a qualitative method. Interview protocol is the main instrument in this study as guides for gathering data during the interview and ease the thematic analysis. This study explores the student perspectives on the use of Facebook in writing classes. Ten students shared their experiences in using Facebook and expressed their opinions about using Facebook in learning. They revealed eight subthemes related to four themes; the beginning of the students in using Facebook, the students’ purposes in using Facebook, their feelings towards the use of Facebook in learning, and their opinion toward the use of Facebook in writing class. Based on the students’ perspective towards the use of Facebook in their learning, this study revealed that most of the students had positive feeling to the use of Facebook in the writing class. This study is expected to give a contribution to English language teaching that Facebook can be a new medium in teaching writing for Islamic Higher Education.
An Analysis of Phonology, Morphology, and Syntax Acquisition toward a Child in Islamic Review
Authors: , Reflianto , Ariani Farida , Afnita Nora
Published: February 2019

The purpose of research is to explore how a baby girl getting the experience of language acquisition in the line of phonology, morphology and syntactic. The research method was descriptive qualitative research by case study design. The subject of research was a baby girl at 2.5 years old. The study took three months was started from September to November 2018 in the village of Koto Pulai, Koto Tangah District of Padang City. Results of the research showed that a baby girl has been able to pronounce some phonemes and words, although still limited to the environmental language and objects are presented nearby her. At the age of 2.5 years old, a baby girl was able to use nouns and verbs and can make simple sentences in the form of declarative, imperative and interrogative sentences involving 2-3 words as a syntax. The process of sounding production when seeing from the Islamic teachings can be understood that  each time of a child born out, he or she acquired the language from his or her mother and family. Islam said this process of a baby knowing the surrounding object names as mentioned in Al Quran in verse 31 of Al-Baqara
Pembelajaran matematika pada Anak Berkebutuhan Khusus (ABK) tipe slow learners
Authors: Saleh Muhammad Hairul , Huriaty Dina , Riadi Arifin
Published: February 2019

Tujuan penelitian ini adalah untuk mendeskripsikan pembelajaran matematika pada anak berkebutuhan khusus di kelas inklusif SMPN 5 Banjarbaru. Metode penelitian ini menggunakan metode deskriptif kualitatif. Subjek penelitian ini adalah guru matematika, GPK dan siswa ABK. Sedangkan objek penelitian ini adalah proses pembelajaran matematika pada materi lingkaran. Teknik pengumpulan data dalam penelitian ini adalah menggunakan observasi dan wawancara. Hasil penelitian ini antara lain sebelum pembelajaran berlangsung, guru matematika telah menyiapkan RPP, silabus, media pembelajaran dan buku paket sebagai sumber belajar. GPK hanya bertugas menyiapkan media, sumber belajar dan siswa ABK slow learners itu sendiri. Dalam pelaksanaan pembelajaran Guru matematika menyiapkan siswa secara psikis dan fisik, memberitahukan materi yang akan dibahas dan mengajukan beberapa pertanyaan, serta menggunakan beragam pendekatan. Guru matematika memfasilitasi terjadinya interaksi di dalam kelas, serta selalu memantau dan membimbing ABK, kemudian bersama seluruh siswa membuat rangkuman atau kesimpulan pelajaran dan melakukan penilaian untuk seluruh siswa, serta memberikan umpan balik terhadap proses dan hasil pembelajaran. GPK bertugas menjelaskan kembali kepada siswa ABK slow learners tentang apa saja yang disampaikan guru matematika di depan kelas,serta bertugas menilai siswa ABK. Setelah pembelajaran berakhir Guru matematika dan GPK menyampaikan materi selanjutnya, rencana pembelajaran berikutnya dan memberikan tugas kepada siswa biasa dan siswa ABK.
Peningkatan hasil belajar siswa melalui blended learning pada materi trigonometri di kelas X Farmasi 1 SMK Negeri 1 Martapura tahun pelajaran 2016-2017
Authors: Sairoji Ahmad , Huriaty Dina , Ranti Mayang Gadih
Published: February 2019

Tujuan penelitian ini adalah mendeskripsikan aktivitas siswa dalam model pembelajaran koperatif tipe jigsaw dan mengetahui peningkatan hasil belajar siswa melalui blended learning pada materi trigonometri di kelas X Farmasi 1 SMK Negeri 1 Martapura tahun pelajaran 2016-2017. Metode penelitian yang digunakan dalam penelitian ini adalah Penelitian Tindakan Kelas (PTK). Subjek penelitian adalah siswa kelas X Farmasi 1 SMK Negeri 1 Martapura tahun pelajaran 2016-2017, yang berjumlah 37 siswa yang terdiri atas 8 siswa laki-laki dan 29 siswa perempuan, sedangkan objek penelitian adalah aktivitas dan hasil belajar. Teknik pengumpulan data menggunakan teknik dokumentasi, observasi, dan tes. Teknik analisis data yang digunakan adalah persentase, rata-rata, dan modus. Hasil Penelitian menunjukkan bahwa aktivitas siswa berada pada kualifikasi sangat tinggi dan hasil belajar siswa mengalami peningkatan dari siklus I ke siklus II dari kualifikasi baik menjadi sangat baik.
Pembayangan mental awal mahasiswa calon guru matematika terhadap penjumlahan dan pengurangan fungsi real
Authors: Darmadi Darmadi , Trisna Benny Nawa
Published: February 2019

Pembayangan mental grafik fungsi merupakan modalitas utama mahasiswa calon guru matematika dalam memahami konsep-konsep terkait fungsi real. Beberapa konsep matematika sangat memerlukan pembayangan mental tentang penjumlahan dan pengurangan fungsi. Paper ini membahas pembayangan mental awal mahasiswa calon guru matematika terhadap penjumlahan dan pengurangan fungsi real. Data diperoleh melalui wawancara berbasis tugas. Sebanyak 20 subjek penelitian dipilih dari mahasiswa semester 7 program studi pendidikan matematika FKIP Universitas PGRI Madiun yang belum pernah mendapatkan materi atau penjelasan tentang visualisasi penjumlahan dan pengurangan grafik fungsi. Hasil penelitian menunjukkan bahwa terdapat 7 (tujuh) bentuk pembayangan mental awal mahasiswa calon guru matematika terhadap penjumlahan dan pengurangan fungsi real.
Tingkat kecemasan dan pengaruhnya terhadap hasil belajar siswa pada pelajaran matematika
Authors: Utami Nurhayati Sri , Fuadiah Nyiayu Fahriza
Published: February 2019

Penelitian ini bertujuan untuk mengetahui bagaimana tingkat kecemasan yang dialami oleh siswa dan pengaruhnya terhadap hasil belajar pada pembelajaran matematika. Dilatar belakangi oleh munculnya kecemasan yang dialami siswa pada pelajaran matematika yang mempengaruhi hasil belajar siswa. Penetitian ini menggunakan penelitian kuantitatif dengan metode One-Shot Case Study. Subjek penelitian ini adalah 30 siswa kelas VIII SMPN 40 Palembang yang terdiri dari 14 laki-laki dan 16 perempuan. Data yang digunakan merupakan data sekunder yang berupa data kecemasan siswa dan data hasil belajar pada pembelajaran matematika. Analisis data pada penelitian ini menggunakan uji normalitas One-Sample Kolmogorov-Smirnov sedangkan untuk melihat pengaruh kecemasan yang dialami oleh siswa dilakukan dengan uji statistik non parametris korelasional dengan uji Spearman Rank. Pengujian dilakukan menggunakan aplikasi IBM SPSS 24. Hasil penetian ini menunjukan bahwa kecemasan matematika siswa SMPN 40 Palembang mayoritas termasuk pada tingkat kategori sedang dengan presentase sebesar 57% dan pengaruh antara kecemasan terhadap hasil belajar siswa pada pembelajaran matematika tidaklah signifikan, namun semakin tinggi nilai kecemasan siswa maka semakin rendah hasil belajarnya...
Pembelajaran inkuiri terbimbing dalam pembelajaran matematika untuk meningkatkan kemampuan penalaran matematis siswa SMP
Authors: Jabar Abdul
Published: February 2019

Pembelajaran matematika di sekolah saat ini masih sebatas sebagai proses penyampaian pengetahuan tetang matematika. Di lain sisi, anggapan bahwa matematika adalah mata pelajaran yang sulit mengakibatkan siswa menjadi malas belajar matematika dan rendahnya keterlibatan siswa dalam proses pembelajaran Untuk lebih memberikan memberikan kesempatan yang luas kepada siswa agar aktif belajar sekarang ini berkembang model-model pembelajaran. Salah satu model pembelajaran Inkuiri Terbimbing yang dapat membuat siswa aktif dalam memecahkan masalah. Tujuan penilitian ini adalah untuk mengetahui kemampuan penalaran matematis siswa pada materi segi empat di kelas VIIC SMP Negeri 2 Kandangan tahun pelajaran 2016/2017 dengan model Pembelajaran Inkuiri Terbimbing. Penelitian ini dilakukan dengan menggunakan penelitian tindakan kelas (PTK) dalam 2 siklus dengan 6 kali pertemuan. Subjek penelitian ini adalah siswa kelas VIIC SMP Negeri 2 Kandangan dengan jumlah siswa 25 orang yang terdiri 15 orang laki-laki dan 10 orang perempuan, dan objek dalam penelitian ini kemampuan penalaran matematis, teknik pengumpulan data yang digunakan tes. Teknik analisis data dalam penelitian ini menggunakan nilai rata-rata dan persentase.Hasil penelitian pada pembelajaran segiempat dengan menggunakan model Inkuiri Terbimbing pada siswa kelas VIIC SMP Negeri 2 Kandangan menunjukkan kemampuan penalaran matematis siswa meningkat dari kualifikasi cukup di siklus I menjadi kualifikasi baik sekali pada siklus II.
Berpikir pseudo mahasiswa PGSD pada operasi bilangan bulat
Authors: Rafiah Hajjah , Saufi M. , Aulia Siti , Riadi Arifin
Published: February 2019

Kurangnya penguasaan konsep matematika di temukan pada mahasiswa PGSD.khususnya pada materi operasi bilangan bulat. Hal ini merupakan masalah serius karena sebagai calon guru, mahasiswa PGSD tentu harus memiliki pemahaman yang benar terhadap suatu konsep. Salah satu penyebab kurangnya penguasaan konsep ini adalah karena konstruksi pengetahuan yang rapuh. Kesalahan konstruksi pengetahuan ini bisa berupa bepikir pseudo, yaitu pseudo salah dan pseudo benar. Pseudo benar terjadi apabila mahasiswa dapat menjawab suat masalah masalah dengan benar, tetapi penalarannya salah. Sebaliknya, pseudo salah terjadi ketika mahasiswa menjawab salah, namun sebanarnya penalarannya benar. Berpikir pseudo ini dikaji dengan menggunakan desain penelitian kualitatif. Subjek penelitian ini yaitu 24 mahasiswa PGSD STKIP PGRI Banjarmasin pada semester ganjil tahun pelajaran 2017/2018. Hasil penelitian menunjukkan sebagian besar mahasiswa PGSD yang mengambil mata kuliah Kajian Matematika SD I mengalami berpikir pseudo pada materi operasi bilangan bulat. Dua puluh satu mahasiswa mengalami pseudo benar dan satu mahasiswa mengalami berpikir pseudo salah. Hasil ini menunjukkan bahwa mahasiswa PGSD mampu melakukan operasi bilangan bulat, namun tidak mampu mengkonstruksi konsep operasi bilangan bulat dengan baik karena proses yang dilakukan hanya bersifat prosedural.
Kemampuan berpikir kritis dan komunikasi matematis siswa SMP dalam pembelajaran problem posing berbasis kearifan lokal Kalimantan Selatan
Authors: Noor Fahriza , Ranti Mayang Gadih
Published: February 2019

Tujuan dalam penelitian ini adalah untuk mengetahui kemampuan berpikir kritis siswa dan komunikasi  matematis siswa dalam pembelajaran problem posing berbasis kearifan lokal Kalimantan Selatan. Metode penelitian ini adalah pretest and posttest two group design. Sampel dalam penelitian ini adalah kelas 7A dan 7B di SMPN 1 Banjarbaru. Pengumpulan data dilakukan dengan menggunakan instrumen tes. Analisis data dilakukan secara deskriptif dan statistik inferensial. Hasil penelitian mengindikasikan (1)  tidak terdapat pengaruh pembelajaran problem posing berbasis kearifan lokal Kalimantan Selatan terhadap kemampuan berpikir kritis siswa; (2) tidak terdapat pengaruh pembelajaran berbasis kearifan lokal Kalimantan Selatan terhadap kemampuan komunikasi matematis siswa; (3) secara deskriptif pembelajaran problem posing berbasis kearifan lokal Kalimantan Selatan lebih baik dibandingkan dengan pembelajaran konvensional dalam kemampuan berpikir kritis dan komunikasi matematis siswa.
Soal pilihan ganda yang valid dan reliabel untuk menginterpretasikan keterampilan berpikir siswa SMP
Authors: Riadi Arifin , Atini Noor Laila
Published: February 2019

penelitian ini bertujuan untuk memperoleh soal pilihan ganda yang baik, ditinjau dari valid dan reliabel. Uji validitas yang digunakan dalam penelitian ini adalah uji korelasi pearson, dan uji reliabilitasnya menggunakan alpha cronbach. Draf soal yang dibuat berjumlah 24 buah, dengan proporsi masing-masing tingkat keterampilan berpikir diwakili oleh 4 soal. Tingkat keterampilan berpikir yang dimaksud adalah berdasarkan taksonomi Bloom versi revisi yaitu Mengingat, Memahami, Mengaplikasikan, Menganalisis, Mengevaluasi, dan Mencipta. Setiap soal memiliki empat pilihan jawaban sesuai dengan ketentuan untuk siswa SMP. Dari hasil uji coba dan analisis data diperoleh bahwa soal yang valid dan reliabel berjumlah 16 buah, dengan skor reliabilitas secara keseluruhan adalah 0,602. Hasil penelitian ini diharapkan mampu digunakan untuk memperoleh gambaran mengenai tingkat keterampilan berpikir siswa SMP di sekolah maupun di daerah lain.
Kecenderungan tingkat keterampilan berpikir siswa SMA menurut taksonomi bloom dan kaitannya dengan gender
Authors: Ferita Rolina Amriyanti , Fitria Mia
Published: February 2019

penelitian ini bertujuan untuk mendapatkan gambaran mengenai tingkat keterampilan berpikir siswa SMA ditinjau dari taksonomi Bloom versi revisi dan melihat kaitannya dengan jenis kelamin. Jenis penelitian yang dilakukan adalah Deskriptif Kuantitatif dengan pendekatan Ex Post Facto, yaitu penelitian yang dilakukan untuk meneliti peristiwa yang telah terjadi yang kemudian merunut ke belakang untuk mengetahui faktor-faktor yang dapat menimbulkan kejadian tersebut. Peristiwa yang dimaksud dalam penelitian ini adalah HOTS siswa, sedangkan faktor yang dapat menimbulkan kejadian tersebut adalah gender. Hasil penelitian menunjukkan bahwa tidak ada hubungan antara tingkat keterampilan berpikir siswa dengan jenis kelaminnya
Ameliyat esnasında gelişen Akut Adrenal Yetmezlik: Olgu Sunumu
Authors: UÇKUN Serkan , KUZUCUOĞLU Tamer , TEMİZEL Feriha
Published: February 2019

Olgu: 60 yaşında kadın hasta; karın ağrısı,
kusma ve ateş şikayetleriyle acil servise başvurdu. Muayenesinde bilinç açık,
koopereydi. Ateş 38.5C, Glaskov koma skoru 14, kan basıncı 135/82 mmHg, kalp
atım hızı 74/dakika, SpO2 %97 idi. Hasta akut batın tanısıyla acil operasyona
alındı. Operasyonun 35. Dakikasında yeterli sıvı desteği ve vazoaktif-inotrop
ilaçlara yanıtsız hipotansiyon (65/34) gelişti. Kan gazında gözlenen
hipoglisemi (50mg/dl), hiponatremi ve hiperpotasemi Akut Adrenal
Yetmezliği  destekledi. Hastaya ek olarak
metilprednizolon (150 mg) ve %20 Dekstroz başlandı. Hemodinamik olarak düzelen
hastanın operasyonu başarılı bir şekilde tamamlandı. Sonuç olarak; preoperatif
anestezik değerlendirme ilaç kullanımı ve özellikle steroid ilaçları
içermelidir. Anesteziyologlar, Akut Adrenal Yetmezlik belirti ve semptomlarını
gözden kaçırmamalıdırlar.
Dev Araknoid Kist: Olgu Sunumu
Authors: Varışlı Behçet , Yıldırım Sinan , Çelik Hamit
Published: February 2019

Araknoid
kistler araknoid membranın aşama aşama yıkılmasıyla oluşan, serebrospinal sıvı
içeren, benign malformasyonlardır. Araknoid kistlere hidrosefali, nöbet,
intrakranial basınç artışı ve fokal nörolojik defisit  gibi semptomlara yol açmadıkça tedavi
önerilmez. Biz bu yazıda 5 yaşındaki bir çocuk hastada insidental olarak tespit
edilen dev bir araknoid kist olgusunu sunmayı amaçladık.
Circulating Tumor Cell Detection in Lung Cancer: But to What End?
Authors: Hofman Véronique , Heeke Simon , Marquette Charles-Hugo , Ilié Marius , Hofman Paul
Published: February 2019

The understanding of the natural history and biology of lung cancer has been enhanced by studies into circulating tumor cells (CTCs). Fundamental and translational research, as well as clinical trials in the characterization and behavior of these cells, have constantly contributed to improving understanding within the domain of thoracic oncology. However, the use of these CTCs as prognostic and predictive biomarkers has not been adopted to the same extent as circulating free DNA (cf-DNA) in plasma, in the daily practice of thoracic oncologists. However, recent technological advances have firmly put the detection and characterization of CTCs in thoracic oncology back on the agenda, and have opened up perspectives for their routine clinical use. This review discusses the major advances of using CTCs in the domain of thoracic oncology, as well as the envisaged short- and long-term prospects.
Deciphering the Mechanism of Action Involved in Enhanced Suicide Gene Colon Cancer Cell Killer Effect Mediated by Gef and Apoptin
Authors: Cáceres Blanca , Ramirez Alberto , Carrillo Esmeralda , Jimenez Gema , Griñán-Lisón Carmen , López-Ruiz Elena , Jiménez-Martínez Yaiza , Marchal Juan A. , Boulaiz Houria
Published: February 2019

Despite the great advances in cancer treatment, colorectal cancer has emerged as the second highest cause of death from cancer worldwide. For this type of tumor, the use of suicide gene therapy could represent a novel therapy. We recently demonstrated that co-expression of gef and apoptin dramatically inhibits proliferation of the DLD-1 colon cell line. In the present manuscript, we try to establish the mechanism underlying the enhanced induction of apoptosis by triggering both gef and apoptin expression in colon tumor cells. Scanning microscopy reveals that simultaneous expression of gef and apoptin induces the apparition of many “pores” in the cytoplasmic membrane not detected in control cell lines. The formation of pores induced by the gef gene and accentuated by apoptin results in cell death by necrosis. Moreover, we observed the presence of apoptotic cells. Performing protein expression analysis using western blot, we revealed an activation of mitochondrial apoptosis (increased expression of Pp53, cytochrome c, Bax, and caspase 9) and also the involvement of the extrinsic pathway through caspase 8activation. In conclusion, in this manuscript we demonstrate for the first time that the extrinsic pathway of apoptosis and pore formation is also involved in the cell death caused by the co-expression of the gef and apoptin genes. Our results suggest that co-expression of gef and apoptin genes induces an increase in post-apoptotic necrotic cell death and could be a valuable tool in the design of new antitumor strategies focused on the enhancement of the immune response against cancer cell death.
Tankyrase (PARP5) Inhibition Induces Bone Loss through Accumulation of Its Substrate SH3BP2
Authors: Mukai Tomoyuki , Fujita Shunichi , Morita Yoshitaka
Published: February 2019

There is considerable interest in tankyrase because of its potential use in cancer therapy. Tankyrase catalyzes the ADP-ribosylation of a variety of target proteins and regulates various cellular processes. The anti-cancer effects of tankyrase inhibitors are mainly due to their suppression of Wnt signaling and inhibition of telomerase activity, which are mediated by AXIN and TRF1 stabilization, respectively. In this review, we describe the underappreciated effects of another substrate, SH3 domain-binding protein 2 (SH3BP2). Specifically, SH3BP2 is an adaptor protein that regulates intracellular signaling pathways. Additionally, in the human genetic disorder cherubism, the gain-of-function mutations in SH3BP2 enhance osteoclastogenesis. The pharmacological inhibition of tankyrase in mice induces bone loss through the accumulation of SH3BP2 and the subsequent increase in osteoclast formation. These findings reveal the novel functions of tankyrase influencing bone homeostasis, and imply that tankyrase inhibitor treatments in a clinical setting may be associated with adverse effects on bone mass.
Description of an Innovative Pediatric Individualized Therapeutics Clinic: Working toward Precision Drug Therapy
Authors: Sandritter Tracy L. , Dinh Jean C. , Wagner Jennifer A. , Lowry Jennifer A.
Published: February 2019

The GOLDILOKs® (Genomic and Ontogeny-Linked Dose Individualization and cLinical Optimization for KidS) Clinic aims to provide families and physicians with data to make more informed decisions with regard to pharmacological therapy by using innovative therapy and genomic technologies. The objectives are two-fold: (1) To describe the utility of the GOLDILOKs® Clinic to referring prescribers by evaluating the type of referrals made to the GOLDILOKs® Clinic and (2) to assess the most often utilized technologies (e.g., genotyping) completed to formulate therapy recommendations. Patient data from July 2010 to June 2016 was retrospectively reviewed following Institutional Review Board (IRB) approval. The GOLDILOKs® Clinic evaluated 306 patients and had increases in annual referrals from 14 in 2010–2011 to 84 in 2016–2017. The children that were referred were predominately Caucasian (82%) and male (59%) with an average age of 12.4 ± 5.9 years. Subspecialty versus primary care referrals accounted for 82% and 18% of referrals, respectively. Adverse drug reactions (n = 166) and poor medication response (n = 179) were the major reasons for referral. However, it must be noted that patients could have multiple reasons for referral. Pharmacogenetic results were extensively used to provide guidance for future therapy in patients with medication-related problems. Genotyping of drug metabolizing enzymes and drug target receptors was performed in 221 patients (72.2%). Recommendations were fully accepted by 63% and partially accepted by 22% of internal provider referrals.
Coating Sand with New Hydrophobic and Superhydrophobic Silica/Paraffin Wax Nanocapsules for Desert Water Storage and Transportation
Authors: Atta Ayman M. , Abdullah Mahmood M. S. , Al-Lohedan Hamad A. , Mohamed Nermen H.
Published: February 2019

Paraffin wax emulsions have gained immense attention as a cheap, environment-friendly, and aroma-free material for preparing superhydrophobic coatings. In this work, paraffin wax (PWs) capsules consisting of hydrophobic silica nanoparticles were used for coating desert sand. Different types of the hydrophobic silica nanoparticles, modified with new oleylamino- and oleylamide silane precursors, were prepared in the presence and absence of paraffin waxes. The particle sizes, surface charges, thermal stability, surface morphologies, and wetting characteristics of these nanoparticles were investigated. The combination of these superhydrophobic silica nanoparticles and desert sand, showed excellent water repellency; stable water droplets remained on the sand surface, without any wetting or permeation. Furthermore, the mixing of the superhydrophobic sand with untreated sand (mixing ratio 1:10 wt %), with a thickness of 2 cm, sustained a great water-holding capacity with a water column height of 35 cm. The good thermal stability of the PWs capsules containing hydrophobic silica nanoparticles, along with their good water-holding capacity, make them potential candidates for developing superhydrophobic sand for desert water storage and transportation.
Manufacturing of Double Layer Optical Fiber Coating Using Phan-Thien-Tanner Fluid as Coating Material
Authors: Khan Zeeshan , Ur Rasheed Haroon , Alharbi S.O. , Khan Ilyas , Abbas Tariq , Chin Dennis Ling Chuan
Published: February 2019

Modern optical fiber required a double-layer resin coating on the glass fiber to provide protection from signal attenuation and mechanical damage. The most important plastics resin used in coating of fiber optics are plasticized polyvinyle (PVC), low/high density polyethylene (LDPE/HDPE), nylon, and polysulfone. Polymer flow during optical fiber coating in a pressure type coating die has been simulated under non-isothermal conditions. The flow dependent on the wire or fiber velocity, geometry of the die, and the viscosity of the polymer. The wet-on-wet coating process is an efficient process for two-layer coating on the fiber optics. In the present study, the constitutive equation of polymer flow satisfies viscoelastic Phan-Thien-Tanner (PTT) fluid, is used to characterize rheology of the polymer melt. Based on the assumption of the fully developed incompressible and laminar flow, the viscoelastic fluid model of two-immiscible resins-layers modeled for simplified-geometry of capillary-annulus where the glass fiber drawing inside the die at high speed. The equation describing the flow of the polymer melt inside the die was solved, analytically and numerically, by the Runge-Kutta method. The effect of physical characteristics in the problem has been discussed in detail through graphs by assigning numerical values for several parameters of interest. It is observed that velocity increases with increasing values of ε D 1 2 , ε D 2 2 , X 1 , and X 2 . The volume flow rate increases with an increasing Deborah number. The thickness of coated fiber optic increases with increasing ε D 1 2 , ε D 2 2 , and δ . Increase in Brinkman number and Deborah number enhances the rate of heat transfer. It is our first attempt to model PTT fluid as a coating material for double-layer optical fiber coating using the wet-on-wet coating process. At the end, the present study is also compared with the published work as a particular case, and good agreement is found.
Synthesis and Properties of Electrodeposited Ni–Co/WS2 Nanocomposite Coatings
Authors: He Yang , Wang Shuncai , Sun Wanting , Reed Philippa A.S. , Walsh Frank C.
Published: February 2019

Ni–Co coatings have gained widespread attention due to their potential in replacing hard chromium deposits (which have traditionally utilized toxic and corrosive chromic acid baths). A major challenge is to lower the high coefficient of friction of coated surfaces against steel, under dry sliding conditions. In this research, low friction Ni–Co/WS2 nanocomposite coatings have been prepared by a convenient, one-pot electrodeposition from aqueous Ni–Co plating baths containing WS2 particles. The embedment of the WS2 lubricants is found to reduce the friction coefficient of coating significantly, and an ultra-low friction coefficient of 0.16 is obtained for the coating having a WS2 content of 7.1 wt.%. Morphology and composition characterization of wear tracks reveal that the formation of a WS2-rich lubricating tribofilm on the contact surfaces is beneficial to a low friction coefficient and good oxidation resistance. The wettability of electrodeposited coatings was also investigated. Compared to pure Ni-Co coating, the Ni–Co/7.1 wt.% WS2 coating has an excellent hydrophobicity with a high water contact angle (WCA) of 157°, due to a rough surface with dual scale protrusions and the low surface energy of WS2.
Scintillator Pixel Detectors for Measurement of Compton Scattering
Authors: Makek Mihael , Bosnar Damir , Pavelić Luka
Published: February 2019

The Compton scattering of gamma rays is commonly detected using two detector layers, the first for detection of the recoil electron and the second for the scattered gamma. We have assembled detector modules consisting of scintillation pixels, which are able to detect and reconstruct the Compton scattering of gammas with only one readout layer. This substantially reduces the number of electronic channels and opens the possibility to construct cost-efficient Compton scattering detectors for various applications such as medical imaging, environment monitoring, or fundamental research. A module consists of a 4 × 4 matrix of lutetium fine silicate scintillators and is read out by a matching silicon photomultiplier array. Two modules have been tested with a 22 Na source in coincidence mode, and the performance in the detection of 511 keV gamma Compton scattering has been evaluated. The results show that Compton events can be clearly distinguished with a mean energy resolution of 12.2% ± 0.7% in a module and a coincidence time resolution of 0.56 ± 0.02 ns between the two modules.
Crystallochemical Design of Huntite-Family Compounds
Authors: Kuz’micheva Galina , Kaurova Irina , Rybakov Victor , Podbel’skiy Vadim
Published: February 2019

Huntite-family nominally-pure and activated/co-activated LnM3(BO3)4 (Ln = La–Lu, Y; M = Al, Fe, Cr, Ga, Sc) compounds and their-based solid solutions are promising materials for lasers, nonlinear optics, spintronics, and photonics, which are characterized by multifunctional properties depending on a composition and crystal structure. The purpose of the work is to establish stability regions for the rare-earth orthoborates in crystallochemical coordinates (sizes of Ln and M ions) based on their real compositions and space symmetry depending on thermodynamic, kinetic, and crystallochemical factors. The use of diffraction structural techniques to study single crystals with a detailed analysis of diffraction patterns, refinement of crystallographic site occupancies (real composition), and determination of structure–composition correlations is the most efficient and effective option to achieve the purpose. This approach is applied and shown primarily for the rare-earth scandium borates having interesting structural features compared with the other orthoborates. Visualization of structures allowed to establish features of formation of phases with different compositions, to classify and systematize huntite-family compounds using crystallochemical concepts (structure and superstructure, ordering and disordering, isostructural and isotype compounds) and phenomena (isomorphism, morphotropism, polymorphism, polytypism). Particular attention is paid to methods and conditions for crystal growth, affecting a crystal real composition and symmetry. A critical analysis of literature data made it possible to formulate unsolved problems in materials science of rare-earth orthoborates, mainly scandium borates, which are distinguished by an ability to form internal and substitutional (Ln and Sc atoms), unlimited and limited solid solutions depending on the geometric factor.