bluuebunny/crossref_metadata_2025 huggingface dataset:
Innovación educativa y su incidencia en el profesorado
Authors: Páez Granja Ruth Enriqueta , Martínez González Ana Beatriz
Published: September 2019

El presente artículo tiene como objetivo el análisis de los procesos de cambio e innovación en la educación y su incidencia en el profesorado. El tema adquiere particular relevancia debido a que la educación superior en Ecuador está pasando por importantes procesos de transformación que ameritan revisar los contenidos curriculares y la metodología de enseñanza, aspectos fundamentales que subyacen en todo proceso de innovación o cambio educativo y la adaptación del profesorado a estos.  La metodología del presente trabajo consistió en el análisis de los principales postulados de Fullan (2002-2012), Havelock y Huberman (1980), Rutherford y Hall (1990), Rogers (2003), Marcelo (1995-2010), entre otros, que se han dedicado al estudio de los procesos de cambio en el contexto educativo y su impacto en el profesorado. Como resultado de este estudio se identifica como factor fundamental la participación proactiva de los docentes en la construcción y fortalecimiento de los procesos de innovación para la formación integral de los ciudadanos en un marco de compromiso social y ético con la educación en todos sus niveles. El trabajo concluye con un cuerpo de recomendaciones que supone, entre otras, la necesidad de involucrar al profesorado desde el inicio en los procesos de transformación educativa a través de programas de sensibilización, formación y acompañamiento.

The purpose of this article is to analyze the processes of change and innovation in education and its impact on professors. The issue acquires relevance since higher education in Ecuador is going through an important transformation processes that merit reviewing the fundamental aspects that underlie any process of innovation or educational change and the adaptation of professors to these processes. The methodology consisted in the analysis of the main postulates of Fullan, Havelock, Huberman, Rutherford, Hall, Rogers, Hord, Marcelo, among others, that have been devoted to the study of the impact of the processes of change in the teaching staff. As a result of this study, they identify the substantial aspects that connote the processes of change or educational innovation in order to establish strategies that guarantee the proactive participation of teachers in the construction and strengthening of innovation processes, leading to individual and comprehensive training in a framework of social and ethical commitment with education at all levels. The work concludes with a body of recommendations that suppose, among others, the need to involve teachers from the beginning in the processes of educational transformation.
Aktivitas Antibakteri Amoksisilin Terhadap Bakteri Gram Positif Dan Bakteri Gram Negatif
Authors: Maida Surah , Lestari Kinanti Ayu Puji
Published: September 2019

Amoksisilin merupakan antibiotik yang sering digunakan dalam berbagai pengobatan dan efektif membunuh bakteri Gram positif dan Gram negatif. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri amoksisilin terhadap bakteri Gram positif (Bacillus subtilis, Staphylococcus aureus) dan bakteri Gram negatif (Escherichia coli, Pseudomonas aeruginosa). Metode penelitian ini meliputi pembuatan konsentrasi antibiotik (10 ppm, 15 ppm, 20 ppm, 25 ppm, 30 ppm); pengujian antibakteri dengan metode kertas cakram serta pengkuran zona hambat yang terbentuk. Didapatkan data bahwa rata-rata zona hambat yang terbentuk dari keempat bakteri tersebut sebesar 0,03 Ã¢â¬â 0,44 mm. Pada konsentrasi 30 ppm, menunjukkan bahwa bakteri Staphylococcus aureus dan Escherichia coli menghasilkan zona hambat yang terluas yaitu sebesar 0,38 mm dan 0,44 mm. Disimpulkan bahwa sensitivitas keempat bakteri uji bersifat intermediet terhadap antibiotik amoksisilin.ÃÂ ÃÂ
Desain Dan Pembuatan Alat Uji Koefisien Gesek Berdasarkan Sudut Kemiringan Bidang Longsor
Authors: Zuhdi Muhammad , Supriyadi Supriyadi
Published: September 2019

Koefisien gesek suatu benda dapat ditentukan dengan mengukur sudut kemiringan longsor benda tersebut pada suatu bidang. Saat ini belum ada alat ukur untuk menentukan besarnya koefisien gesek suatu material tanah yang didasarkan pada sudut longsor, maka pada penelitian ini dibuat alat uji koefisien gesek statis tersebut. Alat didesain sedemikian rupa agar memiliki ketelitian yang tinggi. Dua buah nivo tabung dipasang secara tegak lurus untuk memastikan bidang ungkit benar-benar datar. Alat ini bermanfaat untuk kepentingan pengukuran koefisien gesekan dari suatu material yang didasarkan pada sudut longsornya. Alat ini juga bisa digunakan untuk praktikum uji koefisien gesek bagi mahasiswa yang mengambil mata kuliah geofisika di fakultas MIPA dan FKIP Universitas Mataram. Alat yang telah dibuat ini dapat mengukur dengan baik koefisien gesekan suatu material tanah. Pengukuran tinggi ungkit dan Panjang bidang miring dengan ketelitian tinggi menghasilkan koefien gesek dengan ketelitian yang tinggi pula. Berdasarkan teori perambatan ralat, maka nilai koefisien gesek yang dihasilkan memiliki ketelitian yang cukup tinggi yaitu sebesar 0,001.
Pengaruh Penerapan Metode Tutor Sebaya Terhadap Kemampuan Pemecahan Masalah Matematis Berdasarkan Kemampuan Awal Matematis
Authors: Noryanti Tuvi , Amir MZ Zubaidah , Nufus Hayatun
Published: September 2019

Tujuan penelitian ini adalah untuk mengetahui pengaruh kemampuan pemecahan masalah matematis menggunakan penerapan metode tutor sebaya dengan siswa yang belajar menggunakan pembelajaran langsung terhadap kemampuan awal matematis pada siswa kelas VII SMP Negeri 32 Pekanbaru. Penelitian ini merupakan penelitian quasi eksperimen. Teknik pengumpulan data menggunakan teknik tes, teknik observasi, dan dokumentasi. Untuk melihat hasil penelitian tersebut digunakan rumus uji-t (test-t) untuk mengetahui hasil penelitian dan anova dua jalur. Berdasarkan hasil analisis data, didapat kesimpulan bahwa terdapat perbedaan kemampuan pemecahan masalah matematis antara siswa yang mengikuti pembelajaran metode tutor sebaya dengan siswa yang mengikuti pembelajaran langsung. Kedua, terdapat perbedaan kemampuan pemecahan masalah matematis antara siswa yang mengikuti pembelajaran metode tutor sebaya dengan siswa yang mengikuti pembelajaran langsung jika ditinjau dari kemampuan awal matematis.ÃÂ
Penerapan Pembelajaran Kooperatif Terpadu NHT dan TSTS Dalam Mengatasi Kesulitan Belajar Struktur Atom dan Sistem Periodik Unsur
Authors: Haris Mukhtar , Muntari Muntari , Loka I Nyoman
Published: September 2019

Pada tahun 2013 peneliti telah mengembangkan perangkat pembelajaran kimia dengan menggunakan model pembelajaran kooperatif terpadu Numbered Head Together (NHT) dan Two Stay Two Stray (TSTS). Hasil penelitian pada tahun 2013 di SMAN 7 Mataram danÃÂ  SMAN 3 Mataram menunjukkan bahwa: a) guru kimia belum pernah melakukan pembelajaran kooperatif dan hanya beberapa siswa yang aktif saat pembelajaran berlangsung, b)ÃÂ  lebih dari 50% siswa mengalami kesulitan belajar pada materi struktur atom, sistem periodik unsur, dan ikatan kimia. Pada tahun 2014, perangkat pembelajaran kimia tersebut diimplementasikan di kelas X guna mengetahui efektifitasnya. Hasil penelitian pada materi struktur atom dan sistem periodik unsur adalah: a) pembelajaran pada kelas eksperimen belum menunjukkan hasil yang berbeda secara signifikan dengan kelas kontrol dalam mengatasi kesulitan belajar siswa kelas X memahami konsep-konsep kimia. Rata-rata kesulitan belajarnya hampir sama yaitu sebesar 53,53% dan 55,15%, b) ÃÂ kelas eksperimen memiliki kesulitan belajar lebih rendah daripada kelas kontrol pada 8 indikator dari 12 indikator pemahaman materi struktur atom dan sistem periodik unsur
RANCANG BANGUN MESIN PRODUKSI ASAP CAIR DARI TEMPURUNG KELAPA BERBASIS TEKNOLOGI CYCLONE-REDISTILLATION
Authors: Fathussalam Muhammad , Putranto Angky Wahyu , Argo Bambang Dwi , Harianti Arta , Oktaviani Arsyika , Puspaningarum Firda Pramesti , Putri Sellyan Lorenza Olanda
Published: September 2019

Tingginya produksi tanaman kelapa di Indonesia mempunyai hubungan yang postif dengan jumlah limbah tempurung kelapa yang dihasilkan, dimana limbah tersebut cukup sulit diuraikan oleh mikroorganisme. Oleh karena itu pemanfaatan limbah tempurung kelapa menjadi arang dan asap cair telah banyak dikembangkan dalam beberapa tahun terakhir. Selama ini, proses pembuatan asap cair dari tempurung kelapa (coconut shell-liquid smoke) dilakukan secara konvensional selama 3-5 hari dengan kualitas asap cair grade C dan volume asap cair yang rendah. Oleh karena itu tujuan penelitian ini yaitu melakukan rancangbangun mesin pembuat asap cair dari tempurung kelapa berbasis teknologi cyclone-redistillation yang dapat meningkatkan volume dari asap cair yang dihasilkan. Metode yang digunakan dalam penelitian ini adalah metode rekayasa (engineering) meliputi perancangan struktural, fungsional dan pengujian performansi untuk alat dan produk yang dihasilkan. Pengujian performansi mesin dianisis berdasarkan volume dari setiap grade (A, B dan C) yang dihasilkan. Hasil penelitian menunjukkan bahwa mesin pembuat asap cair dari tempurung kelapa berbasis teknologi cyclone-redistillation telah diproduksi sesuai spesifikasi dengan dimensi keseluruhan panjang 132 cm, lebar 100 cm dan tinggi 145 cm. Volume asap cair grade A sebesar 65 L, sedangkan grade B dan C masing-masing memiliki volume 10 L dan 25 L dengan total waktu produksi yang lebih singkat daripada metode konvensional di UKM. Oleh karena itu, rancangbangun mesin pembuat asap cair dari tempurung kelapa berbasis teknologi cyclone-redistillation ini sangat berpotensi untuk diterapkan pada UKM penghasil asap cair di Indonesia guna meningkatkan produktivitas dan kualitas asap cair dari limbah tempurung kelapa.
The Study of Process and Characteristics of Woven Fabric from Plant Fibers of Lidah Mertua (Sansevieria trifasciata P.)
Authors: Br Napitupulu Lisa Oktavia , Widyasanti Asri , Thoriq Ahmad , Yusuf Asep
Published: September 2019

Sansevieria or known as tongue-in-law plant is an ornamental plant that is quite popular in Indonesia. This plant is very easily cultivated, easy to grow in areas with less water and sunlight. This plant contains potential natural fibers used as raw material requirements for textile industry, specifically in fabric making. The aims of this research were to determine the production process consisting and analyzing the characteristics of woven fabrics from the leaves of the tongue-in-law plant. The method of fibers extraction used the mechanical decortication process and making woven fabric is done using ATBM. The research method used is descriptive method. Based on the results of the study, it is known that the woven cloth of tongue-in-law has color characteristics with a value of L* 69.73; a* 1.86; b* 17,38; H 83,88. Besides that, it is known the mechanical characteristics of the tongue-in-law woven fabric, the tensile strength of the fabric, the weft  direction of 46.05 kg and the warp direction of 19.96 kg; weft direction stretch 22% and stretch direction of the warp of 55.20%; weft direction tear strength 19.17% and wrap direction 4.60%; and air penetrating power 116.2 cm3/cm2/s.The value of the tensile strength of the tongue-in-law woven fabric produced in the warp direction does not meet the standards of SNI 08-0056-2006 woven fabric quality requirements for suit.Therefore, woven fabric produced is intended as a craft material.
Termoelektrik Üreteç ile Kalorifer Radyatörlerinden Elektrik Üretiminin Deneysel İncelenmesi
Authors: TAŞDELEN Kubilay , YAĞMUR Yakup
Published: September 2019

Termoelektrik teknolojisi 19. yüzyıl ortalarından beri biliniyor olmasına karşılık yeterince işlevsel bir kullanım alanına ulaşamamıştır. En yoğun kullanım alanı elektrik üretim alanı değil soğutma alanı olmuştur. Otomobillerde kullanılan küçük buzdolaplarının yapımında, bilgisayar işlemcilerinin soğutulmasında, otomobil egzozlarında oluşan ısıyı elektrik enerjisine dönüştürme amacıyla kullanılmaktadır. Termoelektrik üreteç veya termoelektrik jeneratör ısı enerjisini  doğrudan elektrik enerjisine dönüştüren cihazdır. Bu dönüşüme Seebeck etki veya daha genel bir ifade ile termoelektrik etki denir. Yapılan bu çalışmada, termoelektrik dönüştürme elemanlarından oluşan bir termoelektrik jeneratör modül kullanımıyla elektrik enerjisinin elde edilmesi ve bu enerji ile ısıl konfor hedeflenmiştir. Kalorifer radyatörünün ve duvarın yüzey sıcaklığını kullanarak sıcaklık farkı elde edilmiş ve bu sıcaklık farkını elektrik enerjisine dönüştüren termoelektrik jeneratörler ile harici bir kaynağa ihtiyaç kalmadan elektrik enerjisi elde edilmiştir. Üretilen enerjiyi faydalı kullanmak için radyatör kanallarındaki fanlar beslenmiştir. Üretilen enerji ile beslenen fanlar kanallardaki sıcak havayı odaya daha hızlı yayarak oda sıcaklığını daha etkin hale getirmiştir. Sıcaklık farkından, termoelektrik jeneratörler ile oda sıcaklığında 3,24 W güce sahip elektrik enerjisi elde edilmiştir. Üretilen enerjiyi faydalı kullanmak için radyatör kanallarındaki fanlar beslenerek normal oda sıcaklığı 8°C artırılmıştır.
Bal Üretim Ormanları İçin Potansiyel Bitki Türleri: Isparta Keçiborlu Güneykent Bal Üretim Ormanı Örneği
Authors: YILDIZ Süleyman
Published: September 2019

Bu çalışmada, Güneykent Bal Üretim Ormanının mevcut flora çalışması yapılarak, arıcılık için elverişli nektar ve polenli bitki yoğunluğu belirlenmiştir. Ayrıca Güneykent Bal Üretim Ormanında yıl içerisinde nektar akımı dönemini uzatmak amacıyla bitkilerin çiçeklenme dönemi dikkate alınarak yörenin orijinine uygun türlerle dikimler yapılmıştır. Tohum ve/veya fidan kullanılırken yetişme ortamına uygun türler ve orijininden olmalarına özen gösterilmiştir. Bal ormanlarındaki ağaçların azami çiçek tutmaları büyük önem arz ettiğinden, dikimlerdeki aralık mesafesine dikkat edilmiştir. Çalışma alanında birbirini takip ederek çiçek açabilen ağaç ve orman altı bitki örtüsünü bir arada bulundurulması sağlanmıştır. Bal ormanı projelerinde, hedeflerin gerçekleştirilebilmesi için özellikle çiçeklenme periyodunun uzun olmasını sağlayan ağaç, çalı ve otsu türlerin olmasına özen gösterilmiştir. Araştırma sonucunda arılar tarafından en fazla ziyaret edilen bitki grubunu 9 takson ile Rosaceae familyası oluştururken, Fabaceae familyası 5 takson ile ikinci sırada, Lamiaceae familyası ise 5 takson ile üçüncü sırada yer almıştır. Bununla birlikte arıcılık açısından son derece önemli olan çiçeklenme dönemleri dikkate alındığında, Nisan, Mayıs, Haziran ve Temmuz aylarının çiçeklenmenin en yoğun olduğu dönem olduğu saptanmıştır.
An Investigation of the Studies on the Conservation of Biodiversity in Turkey
Authors: KÜÇÜKOSMANOĞLU Ali , UYAR Çağdan , Küçükosmanoğlu Gülberk Gizem
Published: September 2019

Considering our world as a whole, prevention of potential hazards and problems is possible by protecting natural resources in harmony with each other and ensuring natural balance. Therefore, conservation of biodiversity and natural resources is primarily a guarantee of the continuity of life on earth and a prerequisite of meeting the sustainable development needs of societies.Illegal hunting practices that have been performed in Turkey for many years have led to a decrease in the number of wild animals or complete extinction of them. The Land Hunting Law No. 4915, which entered into force in 2003 in accordance with its counterparts in the world, contains provisions on the conservation of wild animals and their habitats against a variety of factors (legal basis). There are international biodiversity conventions to which Turkey is also a party. These conventions are critical in terms of conservation and sustainability of biological diversity. The ‘Noah’s Ark National Biodiversity Database’ implemented in Turkey in accordance with these conventions is one of the critical projects in this field. This project has gained importance for the conservation and sustainability of biodiversity both in the world and Turkey.The study includes the main headings of Introduction, Materials and Methods, Findings, and Conclusions and Recommendations, and the sub-headings of Protected Areas, Protected Areas in Turkey, and Studies on Biodiversity. The Conclusion and Recommendations section contains recommendations to preserve habitat and species diversity for biodiversity conservation and emphasizes the importance and framework of national and global conventions to date. Solutions were produced through a holistic assessment.
Living Matter and the Laws of Thermodynamics for the Biosphere
Authors: Swedan Nabil H.
Published: September 2019

The laws of thermodynamics have been developed for inert matter, and living matter has not been considered as a variable in these laws. Living matter possesses properties that have had major effects on biosphere evolution with time. The zeroth property is “Living matter is produced from living matter only.” The first property may be summarized as ”Living matter occupies the available spaces to the maximum extent when environmental conditions are favorable and no obstacles are present.” And the second property is “ Living matter mutates, changes, and adapts to maintain the continuity of life and size as large as possible when environmental conditions are unfavorable.” While the zeroth property is objective in nature, the first and second properties are subjective, in that they are driven by internal stimuli characterizing living matter. Their interaction with the laws of thermodynamics may be thought of as “philosophy intertwining with science.” Accordingly, the laws of thermodynamics are revised to factor in life as a variable. Mathematical expressions of the first and second laws are derived and some of their applicability to the biosphere and climate is explained and discussed. The main conclusion is that life changes climates and the fabric of the biosphere.
ANALISIS PERPINDAHAN PANAS KONVEKSI PADA PENERIMA VOLUMETRIK DI MENARA SURYA MENGGUNAKAN METODE VOLUME HINGGA
Authors: Fatahillah Arif , Dafik D , Amalina Putri Nur
Published: September 2019

In the real life, electric energy has become an essential resource which is needed by men. The commonly used fossil-based fuel which needs very long time in forming can cause some researchers try to create new energy resource which exploits solar energy. Solar tower is one of the tools which has been established by researchers. Thus, there is volumetric receiver inside the solar tower which has function as heat exchanger. Mathematic model which is employed in this research focuses on the air flow on volumetric receiver by applying finite volume method. The design is built based on wind speed and temperature around the solar tower in order to know the effect of wind speed and the temperature around toward the temperature inside the volumetric receiver. Based on the simulation result using MATLAB software, it is found that of wind speed ;  and  has an average temperature value on the volumetric receiver , , and  with relative error . On the other hand, the effects of temperature around are about , , and  with relative error .
Major orthopedic surgery and its correlation with Cockett syndrome
Authors: Bachir Raffael Marum , Asaumi Inácio Diogo , Lo Turco Donato , Kiyan Fabio Luiz
Published: September 2019

We report the case of a 42-year-old female patient complaining of pain in the right foot and repetitive sprains for 2 years who underwent surgical repair of pes cavus and ankle ligament reconstruction. Examination images (radiography, nuclear magnetic resonance, and ultrasound), postoperative (PO) period and progression to deep vein thrombosis are presented and discussed, as well as the resolution of this condition by endovascular surgery with angioplasty and stent implantation after suspicion of iliac vein compression syndrome caused by the contralateral iliac artery, known as Cockett syndrome. Level of Evidence V; Therapeutic Studies; Expert Opinion.
Severe complications of posterior ankle arthroscopy
Authors: Dias Celso Garreta Prats , Mansur Nacime Salomão Barbachan , Asaumi Inácio Diogo , Lemos Andre Vitor Kerber Cavalcanti , Azevedo Rafael Mohriak , Nery Caio Augusto de Souza
Published: September 2019

Posterior ankle and hindfoot arthroscopic procedures are associated with a series of possible complications that must be taken into consideration by physicians when performing surgery. This article intends to assess the severe complications, such as subtalar ankle arthrodesis, occurring in patients undergoing ankle arthroscopy procedures in which at least one posterior portal is used. A series of five consecutive patients undergoing posterior ankle arthroscopy-related procedures were assessed. All the complications described in this article were considered severe by the group. We suggest that extreme care is necessary for the training and indications of this very useful but underestimated and complex tool. Level of Evidence V; Therapeutic Studies; Expert Opinion.
First-generation total ankle arthroplasty
Authors: Afonso Carolina Tiago , Andrade António José Pereira de , Freitas Miguel Martins Pereira Pinto de , Ruano Afonso Salgado
Published: September 2019

Ankle prostheses are a source of disagreement within the orthopedic community due to the poor initial results. The lack of alternatives to arthrodesis has promoted the evolution of arthroplasties. Biomechanical compatibility has been improved, new surgical techniques and instrumentation devices have been developed, and biological techniques for fixation of the various components have been introduced. The first-generation arthroplasty prostheses introduced in the 1970s were cemented and had a stable constrictive design, but because they required extensive bone resection for implantation, they failed due to loosening and extensive osteolysis. We report a case of left total ankle arthroplasty performed in 1980 that is still “in situ”. Based on the bibliographic research performed, this case seems to represent the longest-lasting implant reported to date. Level of Evidence V; Therapeutic Studies; Expert Opinion.
Comparison of deltoid ligament repair and syndesmotic fixation in malleolar fractures
Authors: Rosa Isabel , Rodeia Joaquim , Fernandes Pedro Xavier , Teixeira Raquel , Ribeiro Hugo , Consciência José Guimarães
Published: September 2019

Introduction: The aims were to assess residual deltoid ligament instability after lateral malleolus osteosynthesis and to compare the outcomes of deltoid suture and syndesmotic fixation. Methods: A consecutive series of 65 eligible patients with a displaced or minimally displaced fibula fracture identified on a stress radiograph were prospectively enrolled. The patients were randomized into two groups, namely, group I (deltoid repair) and group II (syndesmotic fixation). We assessed the competence of the deltoid ligament intraoperatively using a manual stress test. Only the patients with residual medial instability (Medial Clear Space greater than 4 mm) were randomly assigned for treatment by deltoid ligament repair with anchor or syndesmotic fixation. Results: Of all the patients, 60 (92.2%) had positive preoperative manual stress test results. After fracture osteosynthesis, the test results were still positive in 13 (21.6%) patients, 8 (13.3%) patients from group I, both superficial and deep layers sutured with a bone anchor, and 5 patients (8.3%) from group II, stabilized with a syndesmotic 4-cortical screw. At the end of the surgery, a new manual stress test was performed, which proved stability in all the patients. The average follow-up period was 23.5 months. In groups I and II, the AOFAS scores were 95 and 93, the EQ-5D measures were 0.758 and 0.743, the visual analogue scale (VAS) scores were 16.7 and 19.2, and the Medial Clear Space values were 2.7 ± 0.5 mm and 2.6 ± 0.4 mm, respectively, without statistically significant differences. Conclusion: In 21.6% of cases, residual medial instability persisted after osteosynthesis of the lateral malleolus. The deltoid repair and syndesmotic fixation groups showed similar functional and radiological outcomes. Level of Evidence II; Therapeutic Studies; Prospective Comparative Study.
An Analysis about Narrative of Weights and Measures in Korean Elementary Mathematics Textbooks
Authors:   The Korean School Mathematics Society, Lee Jong-hak , Jeon Youngju
Published: September 2019

This study is to enable elementary teachers to use the teaching of weights and measures. And to help the author of the next elementary mathematics textbook to be used as a reference for the quantitative narrative process. For this purpose, I focused on the contents of textbooks in terms of definition, unit of measure, and calculation. As a result, first, as for the definition of weights and measures, it is taken as an example rather than as an explicit statement. Second, several problems were found in the metrology content and metric unit introduction order. Third, the computation between measurement units stood in simple computation rather than procedural knowledge. Fourth, it was concluded that the reason and groundbreaking of the grade-specific differences and the amount of a student's education is necessary.
A case study on the positive change of mathematics underachieving students in Reciprocal Peer Tutoring
Authors:   The Korean School Mathematics Society, Kim KiYun , Lee BongJu
Published: September 2019

The purpose of this study is to suggest Reciprocal Peer Tutoring for mathematics underachieving students as one way of the instructional strategies to supplement their lack of mathematics learning and provide them with success experiences in learning mathematics. We defined mathematics underachieving student as the student whose mathematics achievement was high or middle level in the middle school but became lower in high school. 4 mathematics underachievers voluntarily participated in this study. We examined the effects and roles of Reciprocal Peer Tutoring by focusing on their positive change in the affective domain. Reciprocal Peer Tutoring were conducted for about 3 months including pretest, posttest and pre-training. As the results of this research, Reciprocal Peer Tutoring have generally made the positive changes in the affective domain of mathematics underachieving students. Although 4 students did not show the same pattern of change and the sub-elements of positive change were different for each student, Reciprocal Peer Tutoring provided opportunities for all students to experience positive change. The role of peer teachers is more positive than the role of peer learners.
Analysis of LEGO Mindstorm Activity Levels Based on the Van Hiele Levels of Development in Geometry
Authors:   The Korean School Mathematics Society, Rim Haemee , Choi Inseon
Published: September 2019

Technology-based convergence education is being emphasized for students in the era of the fourth industrial revolution. In math education, students need to increase their capabilities in the future by having them experience mathematical problems using robots and sensors, a key technology in the era of the fourth industrial revolution. To this end, it is necessary to present educational uses for educational robots in relation to math and curriculum from a 'mathematics education perspective' and analyze its educational use in relation to the mathematics and curriculum, considering the role of mathematics at the base of the process of exploring real-world phenomena and solving problems. Based on the analysis of Van Hiele levels of development in geometry and the LOGO activity level of Olson et al.(1987), this study analyzed and presented the level of LEGO Mindstorm activity, a representative educational Robot capable of collecting and analyzing data and programming in the form of block language, in the first to fourth level.
A Study on Productive Struggle in Mathematics Problem Solving
Authors:   The Korean School Mathematics Society, Kim Somin
Published: September 2019

Productive struggle is a student’s persevering effort to understand mathematical concepts and solve challenging problems that are not easily solved, but the problem can lead to curiosity. Productive struggle is a key component of students' learning mathematics with a conceptual understanding, and supporting it in learning mathematics is one of the most effective mathematics teaching practices. In comparison to research on students’ productive struggles, there is little research on preservice mathematics teachers’ productive struggles. Thus, this study focused on the productive struggles that preservice mathematics teachers face in solving a non-routine mathematics problem. Polya’s four-step problem-solving process was used to analyze the collected data. Examples of preservice teachers’ productive struggles were analyzed in terms of each stage of the problem-solving process. The analysis showed that limited prior knowledge of the preservice teachers caused productive struggle in the stages of understanding, planning, and carrying out, and it had a significant influence on the problem-solving process overall. Moreover, preservice teachers’ experiences of the pleasure of learning by going through productive struggle in solving problems encouraged them to support the use of productive struggle for effective mathematics learning for students, in the future. Therefore, the study’s results are expected to help preservice teachers develop their professional expertise by taking the opportunity to engage in learning mathematics through productive struggle.
Communication Competence of a Family Doctor – From Internship to Daily Professional Practice
Authors: Л. М. Пасієшвілі  , А. А. Заздравнов
Published: September 2019

Communication problems «doctor–patient» in modern society are covered in the article. The importance of patient-oriented communication in the formation of a professional image of a specialist, in evaluating the work of a particular doctor and the health care system as a whole is shown. The features of communication of a family doctor with patients of different age groups are considered. The ability to communicate with the patient should be considered a mandatory professional competence of the family doctor. The need to optimize the training of general practitioners in patient-oriented communication in the postgraduate stage of education is pointed out.
Properties the IFN-α Synthesis of Products in Patients with Herpes Virus Infection 1 and 2 type
Authors: Н. М. Горбаль  , К. Є. Іщейкін  , Г. О. Потьомкіна  , І. Г. Гайдучок  , І. Й. Кріль  , В. В. Чоп’як
Published: September 2019

This article presents the results of the investigation of IFN-α synthesis dynamics on local and general levels in patients with the recurrent simple herpesvirus infection. The influence of different types of antiviral therapy to IFN-α level is estimated as well. The normalization of IFN-α level was noted in the group of patients with simple herpesvirus infection after applying of antiviral therapy and three months after the treatment, especially in the group of patients with mild course of HSV 1/2-infection, that proves the antiviral defence stabilization. Moreover, the clinical efficacy of the proposed treatment was established for patients with the recurrent HSV 1/2-infection: in the group of patients with the mild course of HSV 1/2-infection it was 73,5% after the treatment and 85,8% in the remote period; in the group of patients with the mild and severe course of HSV 1/2-infection it was 64,0% after the treatment and 70,4% in the remote period.
Frequency of Polymorphic Options G894T Genotype of Endothelial NO-synthase in Patients with Arterial Hypertension and Surface Mass of the Type
Authors: В. С. Потаскалова  , М. В. Хайтович  , Л. В. Натрус  , Ю. С. Осадчук
Published: September 2019

The objective: to establish the prevalence of the G894T polymorphism of the NOS3 gene among patients with primary arterial hypertension (AH) with overweight and its effect on the course of the disease.Material and methods. 58 patients with AH and body mass index (BMI) of <25 kg/m2 were examined: 22 (38%) men and 38 (62%) women; middle-aged: 53,6±8,7 years. 3 (5%) patients had impaired carbohydrate tolerance, 10 (17%) had type 2 diabetes. 48 patients with hypertension stage I, 5 – stage II and 5 – stage III.Results. The «wild» homozygous genotype GG was detected in 35 (60,3%) patients, the heterozygous genotype GT – in 20 (34.5%) and the «mutant» homozygous TT genotype – in 3 (5,2%) patients. Allele G has 94,8% of those surveyed, allele T – 39,7% of patients. The debut of hypertension on average in patients with the homozygous TT genotype at 38,7 years old, in patients with the GT genotype at 47,5 years old and in patients with the homozygous GG genotype at 43,6 years old. The presence of the T allele in patients with AH with overweight is associated with a significantly lower average level of mean daily systolic and diastolic blood pressure (122,6±22,1 mm Hg vs 132,3±16,5 mm Hg vs; р<0,05 and 76,5±8,1 mm Hg vs. 84,5±16,5 mm Hg vs; р<0,05).Conclusion. The majority (60,3%) of patients with AH and overweight had GG genotype of the G894T NOS3 polymorphism, 34,5% and 5,2% respectively had GT and TT genotypes, while among healthy individuals there were 28,9%, 67,5% and 3,6%. Patients with the GT genotype fell ill with AH 4,5 years earlier than patients with the GG genotype (5,7±4,2 years vs. 10,2±6,0 years; р<0,005). The presence of the T allele of this gene in patients receiving antihypertensive therapy is associated with better control of systolic and diastolic blood pressure than in patients of the comparison group (122,6±22,1 mm Hg vs., 132,3±16,5 mm Hg vs.; р<0,05 and 76,5±8,1 mm Hg vs, 84,5±16,5 mm Hg vs; р<0,05).
Effectiveness lisinopril and amlodipine combination in the prevention of patients with hypertonic disease in comorbidity witn obliterative atherosclerosis of lower extremities in family practice
Authors: Л. С. Бабінець  , В. В. Білочицька
Published: September 2019

The article presents the results of 40 patients with hypertonic disease (HD) with 2–3 degrees of arterial hypertension in combination with obliterative atherosclerosis of the lower extremities (OALE), in which hyperkinetic, eukinetic and hypokinetic types of central hemodynamics with the prevalence of the sympathetic nervous system were detected. It has been proved that in the absence of individual contraindications, the combination of an ACE inhibitor lisinopril and calcium antagonist amlodipine is optimal and universal for the effective treatment of patients with HD in combination with OALE in all types of central hemodynamics. Since after 6 months of treatment the highest positive dynamics of hemodynamic parameters, in particular, increase the pulse index – by 24,8%, the decrease in the resistance index – by 21,1%, the increase in the linear and volume velocity of blood – respectively, by 25,6% and 27,4% at the same time achievement of the target blood pressure level.
A Modern View on the Diagnostic and Therapy Anemia Chronic Diseases Problems
Authors: С. А. Гусєва  , С. В. Луценко
Published: September 2019

Anemia is an important disease often found in the elderly. Аnemia of chronic diseases is relatively frequent. Anemia of chronic diseases may result from chronic infectious disease, chronic inflammatory disease. When anemia is found in the elderly, it is important to determine if it is explained by physiological changes or if there is an underlying disease the treatment of which can improve the anemia.
Investigation of the interrelationships of levels of brain natriuretic peptide with frequency of exacerbations and the degree of limitation of air flow in patients with chronic obstructive pulmonary disease
Authors: Бен Аммар Сауссен  , О. С. Комісcарова  , Н. В. Кіча  , Л. В. Черкашина
Published: September 2019

The objective: was to study the levels of brain natriuretic peptide in relation to the frequency of exacerbations and the degree of limitation of air flow in patients with chronic obstructive pulmonary disease (COPD).Materials and methods. The study involved 120 patients with COPD II-IV stages. Formed treatment groups, stratification of patients by the degree of limitation of air flow rate, frequency of exacerbations of the disease (for the last 12 months). All patients were active smokers.Results. The patterns of correlation between the degree of air flow restriction and the level of BNP in patients with COPD have been revealed, which also allows to explain the relationship between the severity of obstruction and the processes of myocardial remodeling, since the level of BNP, in this case, can be considered as a binding pathogenetic link. The obtained data testify to the continuous increase of BNP level depending on the number of COPD exacerbations.Conclusion. To illustrate the dependence of the level of BNP on the degree of airflow limitation and the frequency of exacerbations of COPD, graphical and analytical (polynominal) models have been constructed, which, in clinical practice, allows the use of predicted / reference values for BNP levels.
Clinical Efficacy of Differentiated Correction of the Status of Contact-protective Systems in Chronic Dermatoses in the Practice of a Family Physician
Authors: Л. В. Черкашина
Published: September 2019

The objective: comparative evaluation of the efficacy of Glutargine, Erbisol and their co-aplication in patients with psoriatic disease, chronic eczema in the period between exacerbations.Materials and methods. The study involved 185 patients with chronic dermatoses: 110 patients with psoriatic disease and 75 patients with chronic eczema who were treated during the inter-relapsing period. Each of the two patient groups was divided into three subgroups: the first one used Glutargine, the second one Erbisol, and the third one used both. Pharmacotherapeutic efficacy was evaluated by determining the frequency of reactions of oxidative homeostasis (functional compensation, metabolic compensation, and metabolic imbalance) and reactions of non-specific immune protection (immunoregulatory stimulation, immunoregulatory compensation, immunoregulatory misbalance. The research program was comprehensive.Results. The combined use of Glutargine and Erbisol in the period between exacerbations of psoriatic disease allows to achieve the highest levels of effectiveness, estimated by the integral index (IDCT = 2,28) due to the formation of functional and metabolic compensation in the system of oxidative homoestimulatory state and also the emotional state system of nonspecific immune protection (I = 1.53 ÷ 1.59) with the simultaneous formation of metabolic reserves of patient adaptation. The combined use of Glutargine and Erbisol in the period between exacerbations of chronic eczema allows to achieve the highest levels of efficiency, which are estimated by the integral index (I = 1,71) due to the formation of functional and metabolic compensation in the system of oxidative homeostasis and imunoregulatory stimulation as well as the compensation in non-specific immune protection systems (I = 1.50) with the simultaneous formation of metabolic reserves of patient adaptation.Conclusion. The results of the study indicate the feasibility and effectiveness of using as an antioxidant the drug Glutargine and as an adaptogen - the drug Erbisol. At the same time, ensuring long-term follow-up of patients with psoriatic disease and chronic eczema by GPs-family medicine requires dynamic monitoring of the status of contact-protective systems, in particular oxidative homeostasis and a system of nonspecific immune protection with personification therapy and other therapeutic remedies. It has been determined that while choosing the adaptogenic and antioxidant remedies should be taken into consideration their complex effects.
Vitamin B12 deficiency in the elderly and the possibility of influencing the nature of drug treatment type 2 diabetes
Authors: Л. А. Стаднюк  , О. А. Кононенко  , О. В. Давидович  , М. В. Олійник
Published: September 2019

The article presents data on the prevalence, causes, precipitating factors and consequences of vitamin B12 deficiency in the elderly. A possible relationship between vitamin B12 deficiency and the development of senile weakness syndrome was traced. The data from a clinical case on the positive experience of switching from metformin to metformin XR in a man with type 2 diabetes mellitus are presented.
The effectiveness of the use of herbal drugs in the complex treatment of patients with acute uncomplicated pyelonephritis
Authors: О. Б. Унгурян
Published: September 2019

The objective: to study the effect of herbal medicine Canephron ® N in the treatment of patients with uncomplicated pyelonephritis and to prevent the recurrence of infectious and inflammatory complications.Materials and methods. 73 patients with uncomplicated pyelonephritis were examined on the basis of the city clinical hospital of emergency and emergency medical care in Zaporozhye (urology department). The method of random distribution of patients were divided into two groups. The control group included 36 patients, the main group included 37 patients with uncomplicated pyelonephritis. The control group of patients received a comprehensive anti-inflammatory therapy. The main group received anti-inflammatory complex therapy and the herbal preparation Canephron ® N, 2 tablets 3 times a day, starting from the first day of hospital stay. According to the protocol for the treatment of this pathology, all patients underwent a standard examination, which included clinical and laboratory examination, ultrasound, and radiographic examinations.Results. In the control group, a decrease in the infectious-inflammatory process after treatment was observed for 12.5 days. Relapse of pyelonephritis after discharge from the hospital was recorded in 47.2% of patients for a year. In the main group, a decrease in the infectious- inflammatory process after discharge from the hospital and a comprehensive anti-inflammatory therapy with herbal medicine Canephron® H was observed on the seventh day. Recurrence of pyelonephritis during the year after discharge from the hospital was observed in 24.3% of patients.Conclusion: The prescription of herbal medicine Canephron ® N, in addition to complex anti-inflammatory therapy, reduces the risk of relapse of infectious and inflammatory complications by half, which is caused by diuretic, anti-inflammatory and antimicrobial action.
Assessment of effectiveness and acceptability of combination of L-carnitine and arginine hydrochloride in patients with stable effort angina
Authors: І. М. Фуштей  , С. Л. Подсевахіна  , О. С. Чабанна  , О. В. Ткаченко
Published: September 2019

The objective: to assess the effectiveness and acceptability of combination of L-carnitine and arginine hydrochloride in patients with CHD with stable effort angina.Materials and methods. There were examined 63 patients with stable effort angina of II – III functional classes in the age of (56,7±2,3 years old). There was assessed the clinical course of the disease at the beginning and at the end of the therapy the month later. There were performed 24-hour monitoring ECG and veloergometry, was studied the function of endothelium with the use of Doppler sonography of shoulder joint. Patients were divided into two groups. Patients of the main group (n=32) against the background of basic therapy of stable angina were receiving the combination of L-carnitine and arginine hydrochloride. Patients of comparison group (n=31) received only the standard basic therapy.Results. During the research there is noted the improvement of patients’ lives, as evidenced by decrease of subjective complaints expressiveness, decrease of anginose episodes, reduction of running length of ischemia per day according to the data of 24-hour monitoring ECG is reliably more expressed in main group of patients. According to the data of veloergometry the employment of combined therapy contributed to the significant increase of parameters of tolerance to physical activity and the decrease of functional class of angina in relation to comparison group. Combination of L-carnitine and arginine hydrochloride reliably improves the endothelium-dependent vasodilation after treatment (p<0,05). There is registered the 50,9% increase of such state in generally within the group, 33,0% increase – in patients with stable effort angina II FG and 64,8% – III FG.Conclusion. The data that we received illustrates that application of metabolically active combination of L-carnitine and arginine hydrochloride against the background of basic therapy in patients with stable angina leads to statistically reliable decrease of average number of anginose episodes and daily maintenance of nitroglycerin; leads to increase of physical load tolerance and improves the endothelium function relatively to the group of patients that had only basic therapy.
The Relationship Between Rhythm Variability and the Structural and Functional State of the Heart in Patients with Cerebral Atherosclerosis
Authors: В. Є. Кондратюк  , М. С. Єгорова  , О. А. Кононенко
Published: September 2019

The objective: to identify the presence of relationships between indicators of HRV and the structural and functional state of the heart in patients with cerebral atherosclerosis (CA) stage 1–3, depending on the hemispheric localization of the ischemic focus.Materials and methods. In a comprehensive study, 229 patients with CA 1–3 rd degree took part. The patients were divided into 4 groups: І - those who had ischemic stroke (IS) in the right hemisphere (RH); II – transferred IS in the left hemisphere (LH); ІІІ – with CA of 1st – 2nd degree (without IS – comparison group); IV – a general group of patients who have undergone ischemic atherothrombotic stroke. The age of patients of the examined groups ranged from 55 to 75 years. All patients underwent transthoracic echocardiography and an ECG with an assessment of heart rate variability (HRV). Statistical analysis was performed using non-parametric methods (Mann – Whitney test, Spearman’s rank correlation coefficient). Results are presented as medians and 25%, 75% quartiles. To identify the relationship between the indicators of the structural and functional state of the heart and HRV, a correlation analysis was carried out with the calculation of the Spearman’s rank correlation coefficient.Results. In the general group of patients undergoing IS, one inverse correlation was established between the indices of the left ventricular myocardial mass index (MMI) and LF/HF% (r=–0,298), and in the group of patients without IS with CA 1–2 stages were established to relate the index of the relative wall thickness of the LV with the HRV and LF/HF indices (r=–0,196 and r=0,183 respectively) and 2 links of the LV diastolic myocardial function index with HRV and the triangular index (r=0,202 and r=0,217 respectively). When comparing groups of patients with different localization of IS, it was found that for patients with IS in the L, there is a characteristic of 3 MMLV connections with PNN50% and LF/HF% (0,322, –0,304 and –0,373 respectively), whereas for patients with the localization of IS in RH links no links were established.Conclusions. In patients with cerebral atherosclerosis without ischemic stroke, a decrease in HRV with activation of the sympathetic nervous system is associated with concentric LV remodeling and more severe left ventricular diastolic dysfunction. The presence of an ischemic focus in the left hemisphere of the brain, in contrast to the right hemisphere, determines more pronounced changes in HRV in patients as the degree of LV hypertrophy increases, which determines the high risk of repeated vascular events.