bluuebunny/crossref_metadata_2025 huggingface dataset:
PERBEDAAN HASIL BELAJAR MATEMATIKA DARI PENERAPAN JIGSAW DAN TSTS PADA SISWA KELAS XI SMAN 1 AMBARAWA
Authors: Septiana Dinda Ayu , Prihatnani Erlina
Published: May 2019

The 2013 curriculum requires students to learn from anyone including their peers. There are several learning models that emphasize this, including Jigsaw and TSTS (Two Stay Two Stray). This study aims to compare learning results from the application of the two models to students of class XI of SMAN 1 Ambarawa. Sampling with cluster random sampling resulted in a sample of students of class XI MIPA 1 as an experimental class and students of class XI MIPA 2 as a comparison class. A quasi-experimental study with the design of The Randomized Control Group Pretest-Posttest Design was carried out on mathematics learning on the material derivative from algebraic functions. Test different mean initial ability of students by using the Mann-Whitney test produces a significant value of 0.443 (more than 0.05), meaning that the initial conditions of both classes are balanced. The hypothesis test with the Mann-Whitney test produced a significant amount of 0.029 (less than 0.05), with the average in the experimental class (76.81) higher, than the comparison class average (73.79). Therefore, it can be concluded that the application of jigsaw produces the results of mathematics learning in class XI students of SMAN 1 Ambarawa better than the application of TSTS
Perlukah Microteaching?-Representasi Kompetensi Profesional Mahasiswa Calon Guru Menggunakan Dokumen CoRe dan PaP-eR
Authors: Astuti Andari Puji , Aziz Abdul , Sumarti Sri Susilogati , Bharati Dwi Anggani Linggar
Published: May 2019

Tujuan penelitian ini adalah untuk menganalisis secara deskriptif kompetensi profesional mahasiswa calon guru matematika.  Penelitian ini merupakan penelitian kualitatif dengan desain studi kasus. Untuk mencapai tujuan di atas, penelitian ini dilaksanakan dengan pendekatan kualitatif dengan desain studi kasus. Informasi dikumpulkan dengan: (1) wawancara, (2) dokumentasi, dan (3) observasi. Penetapan sumber informasi dimulai dari informan kunci dan dilanjutkan dengan informan lain secara snowball. Data yang terkumpul dianalisis dengan: (1) reduksi data, (2) penyajian data, dan (3) pengambilan kesimpulan. Hasil penelitian menunjukkan bahwa kompetensi profesional mahasiswa calon guru berada pada kategori sedang. Dari hasil penelitian ini, saran-saran yang ajukan diantaranya: (1) perlunya perbaikan sistem microteaching di UNIMUS terutama pada raw dan instrumental input (2) untuk meningkatkan keterampilan profesional mahasiswa calon guru maka diperlukan adanya kegiatan microteaching bersiklus yang disesuaikan dengan alokasi waktu real di sekolah mitra.
Nilai Prestasi sebagai Moderator Hubungan Kegigihan dengan Prestasi Akademik
Authors: Sari Azka Ananda , Royanto Lucia R. M.
Published: May 2019

Value is a fundamental variable that underlies human life. Value serves as a guidance for someone to take an action. In the field of education, achievement value orientation can guide a students to act accordingly in order to gain academic achievements. The aim of this study was toexamine how achievement value serve as a moderator bewtween grit and academic achievement relations. Data were collected using online surveys from 363 undergraduate students of University of Indonesia and were analyzed using multiple regression. The results show that achievement value is significantly proved as a moderator of the relationship between grit and academic achievement. Students who believe in a greater achievement value shows grittier behavior in the context of study and greater effort in facing challenges in college. The grittier the students, the higher academic achievementsthey achieve.
América do Sul: infraestruturas em regiões periféricas e tendências atuais
Authors: Rückert Aldomar Arnaldo , Carneiro Camilo Pereira
Published: May 2019

O artigo examina o regionalismo pós-neoliberal dos anos 2000 e o projeto sul-americano de uma região geopolítica e suas assimetrias internas; possíveis repercussões territoriais de projetos de redes de circulação em regiões periféricas e algumas tendências atuais da proposta como região geopolítica e das infraestruturas de conexão.
Grande, só o Brasil: As regiões platina e amazônica no centro do pensamento geoestratégico do Estado
Authors: Oliveira Adriano Moura
Published: May 2019

Este artigo tem como objetivo, por meio da análise do conjunto de ideias apresentadas por militares e autores ligados às Forças Armadas em diferentes momentos, a saber, Everardo Backheuser, Lysias Rodrigues, Mario Travassos e Golbery do Couto e Silva, demonstrar que a configuração de um pensamento geopolítico brasileiro de potência se deu num constructo que equacionava as questões de segurança interno-externa à ideia de um desenvolvimento possível a partir das potencialidades e posição geográfica do Estado. Se, de um lado, procuraremos sustentar, a geopolítica brasileira remetia às influências vindas de fora, de outro, trazia como especificidade a identificação das regiões platina e amazônica como centro de um projeto de potência, o coração do continente, cujo domínio se fazia indispensável.
Geopolítica e o domínio aeroespacial: da supremacia da aviação militar à exploração espacial por fusão nuclear
Authors: Corrêa Fernanda das Graças , Peron Alcides Eduardo dos Reis , Vergueiro Luiz Fabricio Thaumaturgo
Published: May 2019

Este texto aborda teorias e conceitos da geopolítica que subsidiaram os vários usos do espaço, desde o poder aéreo ao espacial. Para além da corrida armamentista, a Guerra Fria também significou um período de grandes mudanças e inovações tecnológicas na área aeroespacial. Este artigo tem por objetivo demonstrar por meio de dois estudos de casos, energia dirigida e a aviação a laser e propulsão nuclear espacial, como estas mudanças e inovações tecnológicas ocorreram e como transformaram os estudos aeroespaciais futuros.
Do interesse nacional à estratégia de segurança energética: um diálogo epistemológico
Authors: Tasca Tiago Gabriel
Published: May 2019

O objetivo deste artigo é apresentar um diálogo epistemológico partindodo conceito de interesse nacional e, por meio da geopolítica energética,compreender a estratégia de segurança energética orientada para a diversificação.Este trabalho é estruturado em: 1) aproximações teóricas entreo interesse nacional e a geopolítica energética; 2) estratégias de segurançaenergética.
A Institucionalização no Complexo Regional de Segurança Sul-Americano: uma comparação entre quatro períodos históricos
Authors: Carvalho Thales Leonardo de , Souza Andréa Luiza Fontes Resende de
Published: May 2019

O artigo pretende apresentar evidências sobre a consolidação das identidades e interações relacionadas à segurança entre os atores sul-americanos na forma de instituições regionais. Recorremos à análise das dinâmicas regionais em períodos diferentes, em quatro diferentes níveis de análise, visando entender como as mesmas interferiram nessa institucionalização.
STRUKTUR DINDING PELINDUNG LERENG DENGAN METODE KAKI BELALANG TIRUAN
Authors: Sulardi Sulardi
Published: May 2019

Tujuan penelitian adalah untuik memberikan gambaran tentang spesifikasi, bentuk, dimensi dan konfigurasi struktur dinding pelindung tanah dengan metode kaki belalang serta metode pelaksanaannya di lapangan. Metode penelitian ini menggunakan metode penelitian terpakai dan penelitian ini sekaligus sebagai technical notes success story aplikasi struktur pelindung lereng dengan metode kaki belalang tiruan pada pembangunan reservoir pengendali banjir di kota Balikpapan. Hasil penelitian menunjukan, metode kerja pemasangan struktur dinding pelindung lereng dengan metode kaki belalang tiruan dapat diaplikasikan dengan baik dan aman tanpa terjadi incident. Stabilitas dinding penahan lereng ini terletak pada penggunaan pondasi jenis paku dibagian bawah, pasangan tapak-tapak penumpu dinding pelindung lereng, ground anchor dan pasangan saluran drainase.      

 

Kata kunci: dinding pelindung lereng, kaki belalang, three point contact.

 

 

Abstract

 

The research objective is to provide an overview of the specifications, shape, dimensions and configuration of the structure of the protective walls of the land with the method of grasshopper and its method of implementation in the field. This research method used the used research method and this study as well as a technical notes success story application of slope protective structures with artificial grasshopper foot method in the construction of flood control reservoirs in the city of Balikpapan. The results showed that the working method of the installation of a slope protective wall structure with artificial grasshopper foot method can be applied properly and safely without incident. The stability of the slope retaining wall lies in the use of nail type foundations at the bottom, pairs of tread supporting walls, ground anchors and pair of drainage channels.

 

Keywords: protective slope walls, grasshopper feet, three point contact.
Tire Yalınayak Hamamı Restorasyonu ve Yapıya İlişkin Yeni Bulgular
Authors: ÇAKMAK Şakir
Published: May 2019

Antik çağlardan günümüze Batı Anadolu’nun en gözde yerleşimlerinden biri olan Tire, Aydınoğulları Beyliği ve Osmanlı dönemlerine ait çok sayıda anıtsal mimarlık örneği ve iyi korunmuş dokusuyla adeta bir müze-kent niteliğindedir. Aydınoğulları Beyliği döneminde bir süre başkentlik yapan Tire, erken Osmanlı döneminde de önemini korumuştur. Kentte bu dönemlerden günümüze ulaşan çok sayıda cami, han, hamam, medrese, türbe vb. anıtsal yapı bulunmaktadır. Yalınayak Hamamı, günümüze ulaşabilen hamamların en görkemlilerinden biridir. Yapının 2015-2017 yılları arasında, onaylı rölöve, restitüsyon ve restorasyon projeleri doğrultusunda restorasyonu gerçekleştirilmiştir. Restorasyon çalışmaları sırasında, hamamın Tire’deki Yahudi cemaati tarafından kullanılmış olabileceğini düşündüren bazı verilere ulaşılmıştır. Erkekler kısmı sıcaklığında yer alan arınma havuzu (mikve) ile kadınlar ve erkekler kısmı soyunmalıkları arasındaki giriş açıklığı bu veriler arasındadır. Ayrıca yapının kentteki konumu da bu düşünceyi destekler niteliktedir. Restorasyon çalışmaları, yapının tüm özgün unsurlarını korumayı hedefleyen bir yaklaşımla gerçekleştirilmiştir. Erkekler kısmına oranla daha fazla tahrip olan kadınlar kısmında yapılan sıva raspaları ve zemin araştırmaları sonucunda, soyunmalık mekânında bir fıskiyeli havuz izine, ılıklık mekânında ise günümüze ulaşamayan tuvaletin giriş açıklığı izlerine rastlanmıştır. Onaylı proje doğrultusunda, yapıya kuzeyden bitişik durumda olan yakın tarihli konutun kaldırılması sonucunda, bu cepheye bitişik beş adet dükkân temeline ulaşılmıştır. Dükkân temelleri, konservasyonları yapılarak korunmuştur.
Manifestaciones cutáneas en pacientes con síndrome de Down
Authors: Restrepo Catalina , Correa Luis Alfonso , Velásquez Margarita María
Published: May 2019

El síndrome de Down es una enfermedad congénita asociada a retraso mental y características físicas distintivas. Se presenta con diversos signos y síntomas en piel, muchos de los cuales pueden explicarse por la xerosis; otros son propios de la edad del paciente y se ven agravados por las características genéticas de la cromosomopatía o por las enfermedades asociadas. Se pueden presentar siringomas, alopecia areata, elastosis perforans serpiginosa y calcinosis cutis milioide (milia-like), entre otras. Es frecuente la presencia de infecciones bacterianas y virales relacionadas con el déficit inmunológico.
TINDAK PIDANA DUNIA MAYA BERUPA VIRUS DAN TROJAN HORSE MENURUT UU NO11 TAHUN 2008 TENTANG ITE
Authors: Orias Marco
Published: May 2019

Kejahatan dunia maya atau kejahatan di dunia maya memiliki banyak bentuk,peretasan adalah kejahatan pertama, juga dilihat dari aspek teknis, peretasan memiliki kelebihan , pertama orang yang melakukan peretasan harus bisa melakukan bentuk lain cybercrime dengan kemampuan masuk ke sistem computer dan kemudian merusak sistem itu. Kedua, secara teknis kualitas hasil peretasan dari peretasan itu lebih serius jika dibandingkan dengan bentuk-bentuk cybercrime lainnya, seperti Virus dan Trojan Horse.Adapun yang menjadi masalah dalam penelitian ini adalah bagaimana suatu pengaturan kejahatan Virus dan Trojan Horse dan bagaimana penegakan hukum yang menangani kejahatan Virus dan Trojan Horse.Pendekatan penelitian menggunakan yuridis normatif. Pendekatan ini mengarah pada hukum dan perilaku pelaku yang salah menggunakan teknologi dan informasi sebagai dukungan kongkrit untuk memperkuat analisis yuridis tersebut. Hasil penelitian menunjukkan bahwa peran penegak hukum dalam menangani kejahatan Virus dan Trojan Horse yang dilakukan selama ini masih sangat minim. Hal ini menyebabkan banyak hambatan yang ditemukan oleh penegak hukum, hambatan hukum yang ada, kendala penyelidikan ,dan perlawanan masyarakat itu sendiri.Yang paling penting adalah verifikasi sistem untuk mengatasi kejahatan Virus dan Trojan Horse melalui perbaikan atau revisi baru hukum yang ada, apakah UU No.11 Tahun 2008 dan Peraturan lain yang terkait dengan Kejahatan Virus dan Trojan Horse.
Feasibility of Material, Language and Media Aspects in the Development of Statistics Textbooks for Physical Education at IKIP Budi Utomo Malang
Authors: Wardathi Amy Nilam , Pradipta Anangga Widya
Published: May 2019

Buku ajar merupakan penunjang keberhasilan belajar. Buku ajar yang bervariasi dan lengkap akan mendukung pembelajaran sehingga lebih mudah mencapai tujuan. Salah satu matakuliah wajib dalam program studi Pendidikan Jasmani Kesehatan dan Rekreasi (PJKR) adalah Statistika. Berdasarkan hasil observasi peneliti, belum pernah dikembangkan buku statistika untuk pendidikan olahraga, sedangkan berdasarkan analisis kebutuhan perlu dikembangkan buku ajar statistika untuk pendidikan olahraga. Oleh karena itu, penelitian ini bertujuan mengembangkan buku ajar statistika yang konten materinya berkaitan dengan olahraga menggunakan model pengembangan 4D. Terdiri dari tahap mendefinisikan, mendesain, mengembangkan, dan menyebarluaskan. Tulisan ini khusus menguraikan secara rinci pada tahap develop, yang memaparkan kelayakan aspek materi, bahasa, dan media buku dari validator. Berdasarkan hasil validasi dari ahli materi, bahasa dan media menunjukkan bahwa buku ajar layak digunakan dilapangan.
Tokoh Amelia Sebagai Teladan untuk Siswa Perempuan Pendidikan Dasar
Authors: Idris Akhmad , Darni Darni
Published: May 2019

Education holds a central role in the formation of the character's protégé. Through educational institutions are expected to take shape a child's intelligent and moral. Then, how if the institution was only able to give birth to a child who is smart, but not moral? This occurs because of less awareness of moral literacy. Literature as a means of teaching at the same time, the entertainer is expected to be a breakthrough to form a generation of moral literate. Amelia’s character in novel Amelia by Tere Liye can be used as a role model for female students in elementary education.
Analysis of Knowledge of Menstruation, Hygiene Practices, and Perceptions in Adolescent Girls in India
Authors: Solvig Nicole , Raja Leeberk , George Carolin Elizabeth , O'Connell Bethesda , Gangadharan Priya , Norman Gift
Published: May 2019

Introduction: Unsafe water, poor sanitation and inadequate hygiene affects many communities around the world. Without access to clean water, proper waste management, or knowledge of basic hygiene practices, the risk for disease is greatly increased. The menstrual cycle can be hard to manage without access to clean products. Additionally, poor knowledge can perpetuate unhygienic practices. Girls are often not taught about menstruation before it occurs leaving them with feelings of fear, disgust, and uncertainty.

Methods: This paper analyzes data from adolescent girls in both rural and urban communities in India concerning their knowledge, perceptions, and hygiene practices regarding menstruation. Results from pre and posttests indicate change in knowledge following an educational intervention.

Results: The knowledge and practices of adolescent Indian girls regarding menstrual hygiene were greatly lacking. In fact, 53.8% of girls did not know anything about menstruation prior to their first period. Overall, knowledge and practices improved significantly after the educational intervention.

Discussion and Conclusion: Education of girls on menstrual hygiene management is effective. The results of this study are generally consistent with other literature. Further educational and environmental interventions as well as research are needed.
HAK AZASI MANUSIA PERSPEKTIF MAHMOUD MOHAMED TAHA
Authors: Nuroniyah Wardah
Published: May 2019

Artikel ini hendak membahas gagasan dan upaya para pemikir Muslim dalam mereinterpretasi ajaran Islam dalam merespon isu-isu global seperti itu tentang HAM. Reinterpretasi itu penting guna memberikan solusi dan alternatif pemikiran dengan menawarkan berbagai model reinterpretasi terhadap syariah, sehingga syariah dapat merespon isu-isu tentang HAM. Isu Hak Asasi Manusia (HAM) merupakan hasil dari kemajuan peradaban manusia kontemporer untuk hidup dan bergaul antar sesamanya dengan semangat kesetaraan serta sikap saling menghargai dan menghormati, apapun suku, bangsa, agama dan warna kulitnya. Salah satu pemikir yang dibahas adalah Mahmoud Mohamed Taha. Metode untuk memahami pemikiran Taha menggunakan pendekatan normatif dan pendekatan filosofis. Dua pendekatan tersebut dapat secara luas menelusuri doktrin dan hasil interpretasi Mahmoud terhadap ayat-ayat Al-Qur`an yang menegaskan bahwa Islam sangat menjunjung dan menghormati prinsip-prinsip HAM.
TAFSIR REALITAS SOSIAL AL-QUR’AN: PENDEKATAN SOSIOLINGUISTIK DALAM MEMAHAMI BAHASA KINA>YAH AL-QUR’A>N
Authors: Wathani Syamsul
Published: May 2019

Al-Qur'an diturunkan dalam lokal tertentu, Arab tempat dimana Nabi Muhamma hidup dan berinteraksi dengan umat-Nya. Al-Qur'an sebagai risalah diturunkan sebagai respon sosial atas apa yang Nabi Muhammad dihadapi. Artikel ini membahas tafsi dan realitas sosial al-Qur’an. Ada dua poin besar yang dibahas dalam artikel ini; (1) kināyah al-Qur’an sebagai metode untuk menyampaikan pesan wahyu, dan (2) analisis sosiolinguistik sebagai pendekatan untuk memahami bahasa kināyah. Dengan dua poin, artikel ini memberikan kontribusi berupa menawarkan tren baru dalam memahami ayat majāz menggunakan ilmu sosial. Diperlukan sinergitas/keseimbangan antara analisis teks dan analisis realitas sosial al-Qur’an guna   memahami pesan yang termuat dalam al-Qur’an.
AẒĀN DALAM TRADISI SUNNI DAN SYIAH: TELAAH AWAL ATAS HADIS-HADIS SUNNI-SYIAH
Authors: Suhendra Ahmad
Published: May 2019

Salah satu tema yang cukup menarik dikaji adalah terkait dengan aẓān, kemudian ditulis azan.  Dalam tradisi Sunni, terutama dalam imam empat mazhab dalam fiqh Sunni terdapat perbedaan dalam hal jumlah pengulangan dalam setiap lafal azan. Adapun dalam tradisi Syiah juga demikian terkait jumlah pengulangan lafal dalam azan. Artikel ini akan membahas perbedaan lafal azan di kalangan para ulama Sunni dan ulama Syiah maupun dikalangan intern kedua. Untuk itu pertanyaan yang diajukan dalam artikel ini adalah bagaimana beberapa ulama menyikapi perbedaan itu? Mengapa bisa terjadi perbedaan dalam pelafalan azan di antara keduanya? Kendati demikian, titik tekan makalah ini bukanlah mencari mana yang benar dan yang salah, melainkan pemaknaan di antara keduanya.
O Intelectual e o Nada
Authors: Silva João Pinheiro
Published: May 2019

Resenha do Livro

SCRUTON, Roger. Impostores e Incendiários — Os Pensadores da Nova Esquerda. Lisboa:Quetzal Editores, 2010. 400 p.
O Mito da Democracia
Authors: Junqueira Luiz Felipe
Published: May 2019

Resenha do Livro 

STELLE, José. O Estado de Direito: Constitucionalismo, democracia e o futuro da nação.São Paulo: Chiado Books, 2019. 226p.
Influence Of Differences Bait Types On The Catching Result Of Kakatua Fish (family scaridae) Using Handlines
Authors: Rahaningmas Julius Mose , Mansyur Ali
Published: May 2019

The Success of kakatua fish catching (family scaridae) using very good handline was determined by bait. The type of bait that is always used by fishermen are crab and anchovy. The objectives of the study were 1) to determine the type of bait that faster to catch kakatua fish in large quantities, and 2) to determine the most effective time to catch kakatua fish in handline operation. Research activities were conducted in Watdek waters, Southeast Moluccas in March to May 2017. The catching operation is done simultaneously by two fisherman who use handlines above the speed boat. In one day 4 catching were made, between 06: 00-08: 00 am, 08: 00-10: 00 am, 14: 00-16: 00 pm, and 16: 00-18: 00 pm. This study used a comparative descriptive analysis method to analyze the difference time of kakatua fish catching. While statistical analysis of complete randomized design (RAL) was used to see the effect of bait type on the number of catches. The results showed that the crab bait obtained the highest, namely 318 fish or 70% and anchovy bait catch 135 fish or 30%. The best time to catch the kakatua fish (family scaridae) is at 06.00-08.00 am get 226 fish or 50%, 08.00-10.00 am gets 108 fish or (24%), at 16.00-18.00 pm gets 57 fish or (13%) and at 14.00- 16.00 pm gets 62 fish or 14%.
Pelestarian Pertanian Organik Buah Naga : Valuasi Ekonomi dan Simulasi Kebijakan
Authors: Ningsih Kustiawati , Sakdiyah Halimatus , Felani Herman , Dwiastuti Rini , Asmara Rosihan
Published: May 2019

Organic agriculture is the implementation of the sustainable agriculture concept promoted by the World Food Organization (WHO) since 1989. Later, this concept become a global movement for sustainable agriculture (Suryana, 2005). In its development, organic farming of dragon fruit tends to decrease its sustainability. The main contributing factors is natural and environmental degradation phenomena. This study aims to analyze the NPV of corn farming activities, which incidentally are farming activities outside organic dragon fruit farming, by comparing to the NPV of corn farming activities and organic dragon fruit farming NPV and conducting sensitivity analysis toward the benefits and social costs of the dragon-fruit organic farming environment. The analytical method used is cost-benefit analysis. The results showed that there are differences in the value of benefits and costs between corn farming and organic dragon fruit farming. The difference between the benefits and costs, NPV and BCR between corn farming and organic dragon fruit farming occurred because organic dragon fruit farming considers the value of social benefits and social costs, which includes elements of benefits and environmental costs while corn farming does not. Likewise, sensitivity analysis with a 10% increase in costs and a 5% decrease in benefits indicates that the NPV and BCR values are still positive. This shows that both types of farming found in the organic farming environment of dragon fruit are feasible to be developed so that they can maintain their existence for future generations and realize organic farming preservation of dragon fruit.
Didi Bima 165100122
Authors: Yudha Didi Bima
Published: May 2019

Electronic Commerce (e-commerce) is the process of buying, selling orexchanging products, services and information via computer networks. e- commerce is part of the e-business, where the scope of e-business more broadly, not just commercial but also include business partners, customer service, job vacancies. In addition to networking technologies www, e-commerce technology also requires a database or a database (database), e-mail or electronic mail (e- mail), and the form of non-computer technology as well as other delivery systems, and means of payment for e -Commerce. Given the electronic commerce (e- commerce) is then the customer can access and perform orders from various places. Given the current era of advanced technology is the customer who wants to access e-commerce does not have to be somewhere, it is because in the big cities in Indonesia have a lot of places that provide an internet access facility using only the laptop / notebook or by Personal Digital Assistant (PDA) using wifi technology. Thus the time is now very necessary and desirable companies to implement e-commerceservices. The use of e-commerce in Indonesia is still very limited. From the background that there is then the author will discuss how e- commerce pemanfaaatan in their business interests.
LOLA ZIETA AZELIEN: a boy with a pair of boobs
Authors: Setiawan Adib Rifqi
Published: May 2019

The aim of this work is to gain the profile of Lola Zieta Azelien based on her talk in interview at September 6, 2018, then describe erotic capital's concept used by her in modelling's career.
FUNDAMENTAL AND APPLIED SCIENTIFIC RESEARCH April 2019: сб.науч.тр./ OEAPS Inc.; редкол.: Флора Бертран (отв.ред.) [и др.]. - Берлин, Германия : OEAPS Inc., 2019. - 98 C.
Authors: Чибисова Изабелла Станиславовна , Шарипова Диана Ильгизаровна , Зулькарнаева Альфия Галиевна , Дулова Ксения Александровна , Амирзадеган Садег , Сафави Сейед Мохаммад Мусави , Лисуненко Кристина Эдуардовна , Панченко Алена Юрьевна , Разоренова Анна Александровна , Устинова Виктория Петровна , Рамазанова Лора Валерьевна , Акаева Марьям Абдуллаевна , Хидирова Разия Мурадхановна , Арутюнян Седа Рубеновна
Published: May 2019

The conference is a major international forum for analyzing and discussing trends and approaches in research in the field of basic science and applied research. We provide a platform for discussions on innovative, theoretical and empirical research. The form of the conference: in absentia, without specifying the form in the collection of articles. Working languages: Russian, English Doctors and candidates of science, scientists, specialists of various profiles and directions, applicants for academic degrees, teachers, graduate students, undergraduates, students are invited to participate in the conference. There is one blind verification process in the journal. All articles will be initially evaluated by the editor for compliance with the journal. Manuscripts that are considered appropriate are then usually sent to at least two independent peer reviewers to assess the scientific quality of the article. The editor is responsible for the final decision on whether to accept or reject the article. The editor's decision is final. The main criterion used in assessing the manuscript submitted to the journal is: uniqueness or innovation in the work from the point of view of the methodology being developed and / or its application to a problem of particular importance in the public sector or service sector and / or the setting in which the efforts, for example, in the developing region of the world. That is, the very model / methodology, application and context of problems, at least one of them must be unique and important. Additional criteria considered in the consideration of the submitted document are its accuracy, organization / presentation (ie logical flow) and recording quality.
MATHEMATICAL REASONING AND SELF REGULATED LEARNING TOWARDS STUDENTS' PROBLEM SOLVING ABILITY
Authors: Setiawan Agus
Published: May 2019

ABSTARCTThis research aims to determine: (1) Are there any differences in problem solvingskills between students who have high, medium and low mathematical reasoning,(2) Are there any differences in problem solving skills between students who havehigh and low self regulated learning, ( 3) Is there any interaction betweenmathematical reasoning and self regulated learning on problem solving abilities.This research is a comparative causal research with factorial design 3 X 2. Thesubjects of this research were students of class VIII A SMP Ma‟arif 1 Metro. Theinstruments used to collect data are problem solving essay tests, mathematicalreasoning tests and questionnaires for self regulated learning. Hypothesis testingused two-way Anova test with unequal cells while Anava prerequisite test was datanormality test and variant homogeneity test. The conclusions of this research are:(1) There are differences in problem solving abilities between students who havehigh, medium and low mathematical reasoning, (2) There are differences inproblem solving abilities between students who have high and low self regulatedlearning, (3) There are interaction between mathematical reasoning and selfregulated learning on problem solving abilities.Keywords: Mathematical Reasoning, Self Regulated Learning, Problem SolvingAbility
Determination of oil and biodiesel content, physicochemical properties of the oil extracted from avocado seed (Persea Americana) grown in Wonago and Dilla (Gedeo zone), Southern Ethiopia
Authors: Int Chem
Published: May 2019

The avocado seeds were collected from Dilla and Wonago in Gedeo zone, southern part of Ethiopia for oil extraction and biodiesel production. The collected seeds were oven dried and crushed in to powder by mortar and pestle. A soxhlet extraction was used for extraction of the oil. The solvent used for oil extraction was n-hexane. The extracted oil was separated from the solvents by vacuum rata evaporator. The oil content, biodiesel content and the physico-chemical parameters of the oil as well as the biodiesel were determined. The oil content and biodiesel content was 27.6% and 95.2% for avocado seed grown in Wonago and 27.2% and 94.86% for avocado seed grown in Dilla. The physico-chemical parameters of the oil and biodiesel were determined and the result shows that the acid value of (4, 4.3, 0.89,0.92), saponification value (223, 219 ), kinematic viscosity (36,7,5.02,37.44,5.15), density (933,882,936,884g/ml), higher heating (38,40.5,37,40), ester content (95.2,94.86), respectively. Based on the GC-MS analysis of the biodiesel, four FAME compounds were identified. These are methyl palmitate, methyl linoleate, methyl oleate and methyl stearate. From the physicochemical properties of the biodiesel determined avocado seed oil methyl ester could be used as an alternative energy resource in diesel engine.
Evaluation of substrate uptake by microbial film in a gel-like medium
Authors: Int Chem
Published: May 2019

Mathematical model was developed to demonstrates the predominantly reaction controlled region and diffusion limited region for p 3 with high or large diffusion in this case, but when p = 0.3 the chemical reaction and diffusion onset occurred. The model developed illustrates the relationship between K₃C* and N/Nmax for various incremental steps of K2 L. The result obtained reveals that increase in K3C* resulted to an increase in N/ Nmax until an optimum value of N/Nmax was achieved after then the values remain constant with incremental value on K3C*. The Kinetics of substrate is dependent of K3C* as well as K2L values of the system, which in overall influence the substrate uptake by microbial film in gel- like medium.
GC/MS characterization of volatile components of hydrocolloids from Irvingia gabonensis and Mucuna sloanei seeds
Authors: Int Chem
Published: May 2019

Irvingia gabonensis and Mucuna sloanei seeds are among the known soup thickeners used in the preparation of different kinds of soups and local delicacies in Southeast Nigeria. The thickening substances which are hydrocolloids have been isolated and partially characterized using gas chromatography-mass spectrometry method. Eighteen constituents were identified in I. gabonensis comprising aromatic (0.76 %), hydrocarbons (7.19 %), ketones (1.53 %), carboxylic/fatty acids (79.47 %) and esters (11.04 %). Twenty-one constituents were identified in M. sloanei comprising hydrocarbons (22.58 %), esters (19.42 %), fatty acids (45.64 %), amide (5.77 %), aldehyde (4.69 %) and ketones (1.89 %). This research reveals that the seed hydrocolloids of M. sloanei contain more volatile phytochemicals than that of I. gabonensis.
Control and treatment of sulfur compounds specially sulfur oxides (SOx) emissions from the petroleum industry: A review
Authors: Int Chem
Published: May 2019

Sulfur compounds such as sulfur oxides (SOx) are generated and emitted from operations in the petroleum industry which have negative effects on the environment. This study gives a critical and detailed introduction to the control and treatment of sulfur compounds specially sulfur oxides (SOx) emissions from the petroleum industry. It begins with the sectors, main sources, and type of operations that generate SOx emissions; maximum effluent level of them from the petroleum industry; minimization, control, prevention and treatment techniques of these emissions from the petroleum industry. Among these techniques, sulfur recovery unit (SRU) which most often consists of a Claus process for bulk sulfur removal and subsequently a tail gas treatment unit (TGTU) for the remaining H2S removal (SCOT process, Beavon sulfur removal (BSR) process, and Wellman-Lord process) and flue-gas desulfurization (FGD) processes (once-through or regenerable) have been discussed in detail; and removal efficiencies and technical and economic aspects have been compared.
Effects of Viscum album (mistletoe) from three host plants (cocoa, kola and coffee) on semen quality of wistar albino rats
Authors: Int Chem
Published: May 2019

Toxicity evaluation of medicinal plants is useful to know their safety profile. Male infertility arising from administration of drugs of plant origin is a major health concern. In the management of chronic health issues, the adverse effects of these agents are often down-played in favour of the beneficial medicinal values. This encourages repeated administration or consumption of part or whole plant products. Viscum album (mistletoe) is a popular medicinal plants used in the treatment of various chronic diseases. However, there is paucity of research on the effect of mistletoe from different host plants on male fertility. The study investigated the effects of aqueous extracts of Viscum album obtained from three host plants (Cocoa, Kola and Coffee) on semen parameters of Wistar rats. Animals were divided into four groups Control, Cocoa, Kola and Coffee respectively. Group 1 served as control (received distilled water, 10 ml/kg), groups 2, 3, 4 and 5 had four sub-groups each. Each sub-group received 400, 800, 1600 and 3200 mg/kg doses of extract respectively daily for 24 days. Five animals were allotted to each group (control) and sub-group (extracts). Administration of 400, 800, 1600 and 3200 mg/kg doses of extract of Viscum album obtained from three host plants (Cocoa, Kola and Coffee) caused dose-dependent significant (P<0.05, 0.01) decrease in semen quality (count, motility, morphology, concentration and viability) respectively. However, semen volume was not significantly altered (P>0.05). The results suggest that Viscum album obtained from the three host plants adversely affected sperm parameters in male wistar rats. Thus, people who consume the plant extracts should be careful and medical practitioners who prescribe Viscum album in the management of chronic diseases should be cautious.
Activated carbon from molasses efficiency for Cr(VI), Pb(II) and Cu(II) adsorption: A mechanistic study
Authors: Int Chem
Published: May 2019

Activated carbon was prepared from molasses, which are natural precursors of vegetable origin resulting from the sugar industry. A simple elaboration process, based on chemical activation with phosphoric acid, was proposed. The final product, prepared by activation of molasses/phosphoric acid mixture in air at 500°C, presented high surface area (more than 1400 m2/g) and important maximum adsorption capacity for methylene blue (625 mg/g) and iodine (1660 mg/g). The activated carbon (MP2(500)) showed a good potential for the adsorption of Cr(VI), Cu(II) and Pb(II) from aqueous solutions. The affinity for the three ions was observed in the following order Cu2+ Cr6+ Pb2+. The process is governed by monolayer adsorption following the Langmuir model, with a correlation coefficient close to unity.
Isolation, absolute configuration and bioactivities of megastigmanes or C13 isonorterpinoides
Authors: Int Chem
Published: May 2019

Megastigmanes or C13 isonorterpenoids a terpene class of compounds, specially the title compounds are related to sesquiterpenoides but due to C13 skeleton also it is called as norterpenoides. Most of the megastimane compounds have been isolated from the plant source such as Cucumis sativus, Crotalaria zanzibarica, staphylea bumalda, Juniperus communis and Excoecaria cohinchinensis etc. Few reports were showing the megastimane compounds are showing potencial activity against scavenging radical (DPPH) and hepatoprotective activities. The classification of C13 norisoprenoides, are assumed to be apocarotenoides that is formed from the degradation of carotenoides by the action of carotenoides cleavage dioxygenases which have been isolated from various plants. The majority of the evidences for this assumption is the similarly between most megastigmanes and the terminal component of plant carotenoides. Because such compounds are generally not oxygenated at C7 but commonly oxygenated at C9 presumably as a result of the oxidative cleavage of the acyclic portion of caritenoides, the key step in megastigmanes formation has been thought to be transportion of oxygen from C9 to C7. Hence, based on the above information the C9 position and its absolute configuration is very important to get potential activity against various diseases, in this progression a lot of literature reports were showing the importance and absolute configuration at C9 position in megastigmanes or C13 norisoprenoides. In this review, we are reporting the chemistry, absolute configuration and bioactivities of megastigmanes or C13 norisoterpenoides. To our knowledge, this is the first review on megastimanes and its absolute configuration.
Kinetic of oxidation of methyl orange by vanadium(V) under conditions VO2+ and decavanadates coexist: Catalysis by Triton X-100 micellar medium
Authors: Int Chem
Published: May 2019

The kinetics of oxidation of methyl orange by vanadium(V) {V(V)} has been investigated in the pH range 2.3-3.79. In this pH range V(V) exists both in the form of decavanadates and VO2+. The kinetic results are distinctly different from the results obtained for the same reaction in highly acidic solution (pH < 1) where V(V) exists only in the form of VO2+. The reaction obeys first order kinetics with respect to methyl orange but the rate has very little dependence on total vanadium concentration. The reaction is accelerated by H+ ion but the dependence of rate on [H+] is less than that corresponding to first order dependence. The equilibrium between decavanadates and VO2+ explains the different kinetic pattern observed in this pH range. The reaction is markedly accelerated by Triton X-100 micelles. The rate-[surfactant] profile shows a limiting behavior indicative of a unimolecular pathway in the micellar pseudophase.
Characteristics of groundwater in Port-Harcourt local Government area
Authors: Int Chem
Published: May 2019

The study was carried out in Port Harcourt Local Government Area, during the dry season. The quality of groundwater in the area was studied using existing deep water well (borehole) constructed with steel casing and screens. Also shallow wells (hand dug) were investigated. Water samples from the groundwater were collected directly from the wells for a period of five weeks and analyzed. The results in all cases showed that pH was acidic (less than 6.5) as against the WHO tolerance limits of 6.5 – 8.5. Iron appears to be relatively higher (0.38mg/l) in borehole groundwater at station 1, Bundu as against WHO – specified maximum value of 0.3 mg/l. Iron is leached by the acidic and corrosive ground waters (pH less than 6) from the steel well-structured and iron pipe network, laterized soil cover that are in vertical continuity with the aquifer and iron rich sediments, particularly iron coated and stained sand and pebble grain. Neither odour nor taste was noticed in all the groundwater sampled. Also there were no fecal coliform and other coliform organisms present during bacteriological analyses. Water treatment involving demineralization (acid medium removal) and iron removal are necessary in order to improve the quality of ground waters under study.
Maximizing the incorporation of cassava flour as an adjunct in bread baking in Nigeria
Authors: Int Chem
Published: May 2019

Bread is popular around the world and is one of the world’s oldest foods. Bread is usually made from common wheat-flour dough. Till date most people are not familiar with other types of bread apart from that made from 100% wheat flour. When a part of wheat flour is replaced with flours from other food sources (yam, cassava, etc) the wheat gluten is automatically reduced. This study aimed at re-examining the approval of ten percent (10%) cassava flour inclusion in bread baking in Nigeria and evaluating higher % substitutions, with a view to increasing cassava carrying capacity for producing acceptable bread. The water absorption capacity (WAC) of wheat, cassava and composite flours ranged from 62.7 to 79% while oil absorption capacity (OAC) ranged from 4.5 to 72%. As cassava percent inclusion increased both WAC and OAC increased. Bread loaves produced from 10-20% inclusions without egg white had sensory scores of 3.2 to 3.9 and were significantly (p < 0.05) better than 25-30% wheat cassava composite bread loaves. In all sensory attributes, 10-20% cassava inclusion, with added egg white, produced bread loaves which were as good as 100% wheat bread. In terms of taste, colour, odour and texture 25-30% composite bread loaves had identical sensory values. This study showed that bread of acceptable quality can be produced from wheat flour substituted with up to 30% cassava flour.
Composition of essential oil and antioxidant activity of Khat (Catha edulis Forsk), Ethiopia
Authors: Int Chem
Published: May 2019

In this study, we determined the chemical composition and antioxidant activities of the essential oils from two different varieties of khat (Catha edulis Forsk) cultivated in Ethiopia. The essential oils were extracted by hydrodistillation using the Clevenger type apparatus, identifications of compounds were made by gas chromatography and gas chromatography-mass spectrometry (GC-MS). Seventy seven different compounds were identified from essential oils of the two different khat cultivars. The essential oils in the samples from Bahir Dar and Wendo were composed of 50 and 34 compounds, respectively. The major compound identified in khat essentials oils include: limonene, 1-phenyl-1,2-propanedione, 1-hydroxy,1-phenyl-2-propanone, camphor, (sulfurous acid)-2-propylundecyl ester, hexadecane, O-mentha-1(7), 8-dien-3-ol, heptadecane, 10-methylnonadecane, (phthalic acid)-isobutyl octadecyl ester, and tritetracontane. The antioxidant and free radical scavenging activity of the oils were assessed by means of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical assay. The scavenging activities of the oils were 23.5-23.6 μg AAE/kg of fresh khat sample.
Polyalanine gas phase acidities determination and conformational space analysis by genetic algorithm assessment
Authors: Int Chem
Published: May 2019

The genetic algorithm, based on the Multi-Niche Crowding (MNC) method, coupled with the semi-empirical AM1 method is used to analyze the potential energy surface of some polypeptides containing cysteine. Calculating the formation energies of these systems in both neutral and deprotonated states, we deducted their enthalpy of deprotonation (ΔHacid) and we identified the types of rearrangement of these systems when isolated. Deprotonation occurs at the level of the alone acid site characterizing these peptides namely the thiol. The values obtained for the deprotonation enthalpies of polypeptides AlaCysNH2, Ala2CysNH2, Ala3CysNH2, Ala4CysNH2, CysAlaNH2 and CysAla2NH2 are in the order of 331.3 kcal/mol, 322.9 kcal/mol, 313.8 kcal/mol, 312.9 kcal/mol, 325.1 kcal/mol and 317.3 kcal/mol, respectively. The location of global and local minima of these polypeptides shows that they are rearranged in two forms of secondary structures namely helical and globular forms. The obtained results are in good agreement with the experimental ones, on the one hand, and with those from other methods in the theoretical calculation, on the other hand. Therefore, the N-cysteine is more acidic than their homologous C-Cysteine and for this series of plolyalanines, the acidity in the gas phase increased with the peptide chain length.
Influence of extraction technique on the mineral content and antioxidant capacity of edible oil extracted from ginger rhizome
Authors: Int Chem
Published: May 2019

Influence of various extraction techniques (solvent-solvent, cold maceration and soxhlet extraction) on the mineral content and antioxidant capacity of ginger oil was investigated. The minerals determined were magnesium, manganese, zinc, iron, calcium, potassium, sodium and phosphorus. Flavonoid and phenolic contents were determined alongside the antioxidant capacity of the oils which was assayed using DPPH radical scavenging activity and total reducing power. Extracted oil showed strong characteristic pungent gingerly odor and was liquids at room temperature. Highest oil yield was obtained by soxhlet extraction technique (8.04± 0.04%); followed by cold maceration technique (5.30±0.03%) and the lowest by solvent-solvent extraction technique (4.83±0.08%). The results of the mineral analysis showed that oil obtained by soxhlet extraction technique had the highest concentration of all minerals determined, except manganese (3.80±0.01 mg/100g) which was highest in the oil obtained by cold maceration. The oil obtained by solvent-solvent extraction showed lowest concentration of all minerals determined, except calcium (1.08±0.10 mg/100g) and zinc (0.63±0.11 mg/100g) which were lowest in oil obtained by cold maceration. However, the concentration of phosphorus was highest in all the oils when compared with other minerals. Oil obtained by soxhlet extraction showed the highest concentration of flavonoids (118.00±1.00 mgQE/g) and phenolics (217.33±1.53 mgGAE/g) as well as the highest average DPPH radical scavenging capacity (55.56±0.04%) and average total reducing power (0.88±0.002) while the least concentration of flavonoids (44.45±2.97 mgQE/g), phenolics (112.43±1.42 mgGAE/g), average DPPH radical scavenging capability (19.73±0.01%) and average total reducing power (0.55±0.030) were obtained for the oil obtained by solvent-solvent extraction technique. The results showed that heat and reflux condition involved in the soxhlet extraction technique enhanced the extraction of minerals and phytochemicals from ginger rhizome and also enhanced the antioxidant capacity of ginger rhizome oil.
CD-Based Interactive Multimedia on Integrative Thematic Learning in Elementary School
Authors: Rachmadtullah Reza
Published: May 2019

The purpose of this study was to develop CD-Based Learning Multimedia inIntegrative Thematic Learning in Elementary School. The method used in this study wasresearch and development, CD-Based Interactive Multimedia which was then validatedby thematic concept experts and media experts, the results of this study showed that themultimedia developed has a valid and significant assessment so that multimedia is one ofthe learning media that can be used to deliver material to students very effectively andefficiently.
Education as the Culture Process
Authors: Rachmadtullah Reza
Published: May 2019

Education is practically inseparable from cultural values. in preserving and preserving itsown culture, in its most effective transferring process by way of education. Both are veryclosely related to complement each other and support each other. The goal of education isto preserve and always improve the culture itself, with education we can transfer theculture itself from generation to generation. And also we as a society aspire to therealization of society and a better culture in the future, then it is by itself our educationshould be better again
Abur
Authors: abur marsel
Published: May 2019

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