bluuebunny/crossref_metadata_2025_split huggingface dataset:
Animal model of diabetic keratopathy
Authors: Dewi Pitra Ariesta Shinta , Sitompul Ratna , Pawitan Jeanne , Naroeni Aroem 
Published: January 2020

Diabetic keratopathy is one of the most common ocular complications in diabetes mellitus. Protocol for diabetes induction in rat model also has been established in many centers. Nonetheless, method in developing diabetic keratopathy rat model has not been well covered. Streptozotocin (STZ)
-induced diabetes is widely being used as animal diabetic model. The purpose of this study is to obtain an animal model of diabetic keratopathy that can be used to study the morphology, metabolism, and function of
cornea in cases where human samples can be difficult to obtain. A single dose STZ (50 mg/kg) was injected intraperitoneally to control and intervention group. Plasma glucose level concentrations were tested in day 3 postinjections. Obtained animal model of diabetic keratopathy, with significant difference of blood glucose level between intervention and control group (P<0.00). Sensibility of cornea was decreased by week 14th in intervention group. Epithelial defect were more prominent in diabetic group. Despite the differences between human and animal characteristic of diabetic keratopathy, the use of animal models has contributed to better understanding of this disease and to examine more effective treatment.
Mercury Speciation in Contaminated Soils from Old Mining Activities in Mexico Using a Chemical Selective Extraction
Authors: Gavilán-García Irma , Santos-Santos Elvira , Tovar-Gálvez Luis R. , Gavilán Arturo , Suárez Sara , Olmos Jesús 
Published: January 2020

Amalgamation was heavily used in mining since 1557 in Spanish Colonies. In Mexico and other parts of Latin-America,this process generated tailings which were left aside in the mine backyards. In the valley of Zacatecas, tailings were carried out of the mines due to the run-off from the mountains and contaminated most of the Zacatecan Valley which most important economic activity is agricultural (crop and livestock raising). The main concern in this area is the high level of total mercury found in previous studies. So far, various research studies have been conducted in Mexico toidentify the contamination by total mercury in contaminated soils. However, research has not been developed to determine the available fraction by an analysis of the chemical species present in contaminated sites, which represent a risk to human health and the environment. The aim of this study is to develop a mercury sequential chemical extraction methodology with appropriate conditions for identifying: 1) water-soluble fraction, 2) elemental fraction, 3) interchangeable fraction, 4) strongly bound fraction, 5) organic fraction, 6) fraction as sulphides and 7) residual fraction. With this, it might be determined if the mercury species present in mining soils in the state of Zacatecas, Mexico represent a potential risk because of its mobility in the different environmental compartments. Results show that chemical species in the towns of Osiris and La Zacatecana (HgS and amalgamated mercury) have high stability and low mobility.

, Soil contamination, Mining wastes,Chemical selective extraction
Tinjauan Pedagogical Content Knowledge Guru Pada Materi Peluang
Authors: Yuniartikasari Priskila , Mampouw Helti Lygia 
Published: January 2020

Pedagogical content knowledge merupakan pengetahuan yang dimiliki seseorang yang kemudian ditransferkan kepada orang lain dalam bentuk materi sehingga mencapai tujuan pembelajaran dengan baik, dengan didasari oleh pemahaman tentang hal-hal yang dapat dapat membuat materi itu mudah atau sulit di mengerti. Penelitian ini bertujuan mendeskripsikan kompetensi guru SMP pada materi peluang berdasarkan komponen Pedagogical Content Knowledge. Subjek penelitian ini guru SMP Negeri yang sudah mendapatkan sertifikasi dengan masa kerja guru kurang dari 15 tahun dan lebih dari 15 tahun. Teknik pengumpulan data pada penelitian ini yaitu observasi, wawancara, dan dokumentasi. Hasil penelitian ini, menunjukkan bahwa kedua guru mampu menguasai komponen pedagogic dengan baik. Kedua guru memiliki ananlisis penilaian yang berbeda. Namun secara garis besar mengenai kemampuan pedagogic kedua guru sama, hanya berbeda cara penyampaiannya.
Kata Kunci: pedagogical content knowledge, peluang
ABSTRACT
Pedagogical content knowledge is knowledge that is owned by someone and then transferred to others in the form of material so as to achieve learning goals well, based on an understanding of things that can make the material easy or difficult to understand. This study aims to describe the competence of junior high school teachers in opportunity material based on the Pedagogical Content Knowledge component. The subjects of this study were state junior high school teachers who had received certification with teacher tenure of less than 15 years and more than 15 years. Data collection techniques in this study were observation, interviews, and documentation. The results of this study indicate that both teachers are able to master pedagogic components well. Both teachers have different assessment analyzes. But broadly speaking about the pedagogic abilities of the two teachers are the same, only different ways of delivering them.
Keywords: pedagogical content knowledge, peluang
Pengaruh Model Pembelajaran Kooperatif Teknik Kartu Arisan Dalam Pembelajaran Matematika Siswa
Authors: Oktafia Mesi 
Published: January 2020

Penelitian ini bertujuan untuk mengetahui aktivitas siswa selama proses pembelajaran menggunakan model pembelajaran kooperatif teknik Kartu Arisan. Selain itu juga bertujuan untuk mengetahui rata-rata hasil belajar matematika siswa menggunakan model pembelajaran kooperatif teknik Kartu Arisan. Jenis penelitian ini adalah penelitian eksperimen semu dengan model rancangan randomized control group only design. Hasil analisis data menunjukkan bahwa hasil belajar matematika siswa yang menggunakan model pembelajaran kooperatif teknik kartu arisan lebih baik dari pada hasil belajar matematika siswa yang menggunakan model pembelajaran biasa. Hasil analisis observasi menunjukkan bahwa persentase aktivitas siswa menggunakan model pembelajaran kooperatif teknik kartu arisan lebih baik dari pada persentase aktivitas siswa siswa yang menggunakan pembelajaran biasa.
The Trend of Mathematics Teaching Method Has Change From Fragments To Systematics
Authors: Yi Lin , Ying Zhou , Wijaya Tommy Tanu 
Published: January 2020

According to the school observation in China, There are still fragmentation and superficiality problems in front-line teachers’ mathematics teaching method. The reason is that the general system theory has not been rooted in the mathematics teaching method. This study aims to develop Dick-Carey model of systematic design and used in the learning activity. Based on system analysis model, Dick-Carey model of systematic design, and the “Six Questions” cognitive concepts, this paper tries to construct a systematic plan of teaching mathematics. In order to restore the structure, improve the breadth, depth and openness of teaching plan and to promote the systematic model into better teaching method. At the same time, taking the design of "intersecting lines" as an example, this paper explores the effective strategies of systematic design in mathematics teaching.
The Influence of the Role of Agricultural Extension Agents on the Socio-Economic Conditions of Farmers in "Ngawi" Farmers Groups in Kumpai Batu Atas Village, South Arut District, West Kotawaringin Regency
Authors: Shofiyah Shofiyah , Permatasari Risca , Aminatun Aminatun 
Published: January 2020

This research was carried out in Kumpai Batu Atas Village, South Arut District, Kotawaringin Barat Regency. This study aims to determine the influence of the role of agricultural extension agents on the socio-economic conditions of farmers. Data analysis method uses Likert scale, descriptive analysis, multiple linear regression analysis, f-test and determination coefficient. The data collected in this study are primary data and secondary data.The socio-economic conditions of farmers in "ngawi" farmer groups consist of the age of farmers 30-40 years (12%), 41-50 years (24%), 51-60 years (48%); education consists of elementary school (64%), junior high school (32%), S1 (4%); income level range <Rp. 1,500,000 (34%), Rp. 1,500,000 - Rp. 2,500,000 (64%),> Rp. 2,500,000 - Rp. 3,000,000 (12%) and the work of the farmer respondent all (100%) earns a living as farmer. The results showed the hypothesis testing together had a fcount of 0.087 smaller than the value of ftabel of 3.44 which means that Ha was rejected and H0 was accepted, this indicates that the independent variable includes the factors of instructor as educator, facilitator and supervisor together- the same does not affect the dependent variable, namely the socio-economic conditions of the farmers. Based on the results of multiple linear regression analysis obtained equation Y = 1.64 + 0.35 X1 + 0.13 X2 + 0.05 X3 + e which indicates a positive influence between the instructor factors as educators, facilitators and supervisors on the social economic conditions of farmers. The coefficient of determination (R2) obtained shows that 11.1% of socioeconomic conditions can be influenced by the extension factor as an educator, facilitator and supervisor.
Effect of Nasa Liquid Organic Fertilizer and NPK Mutiara Fertilizer on the Growth and Yield of Tomato (Lycopersicum esculentum Mill.) Servo F1 Variety
Authors: Ardani Ardani , Sujalu Akas Pinaringan 
Published: January 2020

Effect of Nasa Liquid Organic Fertilizer and NPK Mutiara Fertilizer on the Growth and Yield of Tomato (Lycopersicum esculentum Mill.) Servo F1 Variety. The purpose of the research is to study the effect of Nasa liquid organic fertilizer and NPK Mutiara fertilizer and its interaction on the growth and yield of tomato, as well as to find the proper concentration of Nasa liquid organic fertilizer and dosage of NPK Mutiara fertilizer for obtaining the best yield of tomato.The research was conducted for three months from February to April 2017, from the time of seed preparation, land preparation until harvest time. It was carried out in Pinang Village, Samarinda Ulu Regency, East Kalimantan Province.The research was conducted using Completely Randomized Design (CRD) in 4 x 4 Factorial Experiment and three replications. The first factor was the concentration of Nasa liquid organic fertilizer (P) consisting of 4 levels : no Nasa liquid organic fertilizer application (p0), 1 ml/l water (p1), 2 ml/l water (p2), and 3 ml/l air (p3). The second factor was the dosage of NPK Mutiara fertilizer (N) consisting 4 levels : no NPK Mutiara fertilizer application (n0), 5 g/polybag (n1), 10 g/polybag (n2), and 15 g/polybag (n3).The results showed that Nasa liquid organic fertilizer, NPK Mutiara fertilizer treatment its interaction affected very significantly on the plant height at age 15, 30 and 45 days after planting, age of plants flowered, age of plant harvested, number of fruits per plant, and weight of fruits per plant; and the weighest weight of fruits per plant was produced in 2 ml/l water POC Nasa and 10 g/polybag of NPK Mutiara fertilizer (p2n2) treatment of 840,00 g/plant, while the lighest one was produced in 1 ml/l water POC Nasa and no NPK Mutiara fertilizer (p1n0) treatment of 300,00 g/plant
PENGARUH UMUR KOMPOS RUMAH TANGGA HASIL RANCANG BANGUN FIFO (FIRST IN FIRST OUT) DAN DOSISNYA DALAM MEDIA TANAM DARI LAHAN PASCA TAMBANG TERHADAP PERTUMBUHAN TANAMAN SAWI (Brassica juncea L)
Authors: Kurniawan Benny 
Published: January 2020

Penelitian ini bertujuan untuk mengetahui pengaruh umur kompos rumah tangga hasil rancang bangun FIFO (First In First Out) dan penambahan rasio yang optimal antara kompos limbah rumah tangga dan tanah lahan pasca tambang terhadap pertumbuhan tanaman Sawi (Brassicajuncea L). Penelitian dilakukan pada bulan pebruari sampai juni 2016 berlokasi di kota sangatta kab. Kutai Timur.Penelitian ini merupakan penelitian faktorial yang disusun dengan Rancangan Acak Kelompok dengan 3 Ulangan dua faktor perlakuan, Faktor Pertama adalah umur kompos 3, 6, 9, dan 12 minggu. Faktor Kedua adalah dosis pupuk kompos sampah Rumah tangga 0,10, 20,30, 40, 50, dan 60 ton/ha.Umur pengkomposan berpengaruh nyata terhadap pertumbuhan tanaman sawi pada tinggi (cm), berat basah (g) dan berat kering (g) tanaman sawi, berpengaruh tetapi tidak nyata pada pertumbuhan jumlah daun tanaman sawi. Dosis kompos campuran tanah pasca tambang sebagai media tanam tanaman sawi berpengaruh nyata terhadap perumbuhan tinggi (cm), Helai daun, berat basah (g) dan berat kering (g). Interaksi antara umur pengkomposan dan dosis pupuk organik pada media tanam tanah pasca tambang memberikan pengaruh nyata terhadap pertumbuhan jumlah daun, berat basah dan berat kering tanaman sawi, tetapi berpengaruh tidak nyata pada pertumbuhan tinggi tanaman sawi. Pupuk organik sampah rumah tangga dengan umur pengkomposan 12 minggu dan dosis 60 ton/ha menghasilkan yang paling tinggi, yaitu tinggi rata rata 35,17 cm, jumlah daun 16 helai, berat basah 60,27 gram, dan berat kering 28,55 gram pada tanaman sawi.
PENDUGAAN EVAPOTRANSPIRASI DI LAHAN AGROFORESTRI DAN LAHAN TERBUKA HUTAN PENDIDIKAN FAKULTAS KEHUTANAN UNMUL
Authors: Sarminah Sri , Pasaribu M. Brian J. Pasaribu , Aipassa Marlon I. 
Published: January 2020

Air adalah substansi yang paling melimpah di permukaan bumi dan merupakan komponen utama bagi semua mahluk hidup serta merupakan kekuatan utama yang secara konstan membentuk permukaan bumi, penelitian ini bertujuan untuk mengetahui nilai elemen-elemen hidrologi untuk pendugaan evapotranspirasi pada lahan agroforestri menggunakan petak ukur limpasan dan lahan terbuka menggunakan lysimeter, penelitian berlokasi di lahan terbuka dan lahan agroforestri di Hutan Pendidikan Fakultas Kehutanan Unmul Samarinda (HPFU), pada lahan agroforestri kombinasi jabon (Anthocephalus cadamba Miq.) dan Kacang buncis (Phaseolus vulgaris L.) dipasang Petak Ukur Limpasan berukuran 10 m × 3,5 m dan pada lahan terbuka dipasang lysimeter berukuran 60 cm × 58 cm yang dibenamkan ke dalam tanah. Metode yang digunakan dalam pendugaan evapotranspirasi ini yaitu menggunakan pendekatan persamaan Neraca Air. Hasil penelitian dengan kejadian hujan sebanyak 30 kali selama ± 4 bulan memiliki total Curah hujan yang tertampung sebesar 882,35 mmdengan total limpasan permukaan (Q) sebesar 66,92 mm (7,58%), kandungan air tanah (Δs) sebesar 88,78 mm (10,06%) dan infiltrasi (If) sebesar 88,24 mm (10%) dengan nilai evapotranspirasi (Et) sebesar 638,41(72,35%) terjadi pada lahan agroforestri dan pada lahan terbuka total kandungan air tanah (Δs) sebesar 86,77 mm (9,83%), perkolasi (Pc) sebesar 44,42 mm (5,03%) dan limpasan permukaan (LP) sebesar 41,47 mm (4,70%), dengan nilai evapotranspirasi (Et) sebesar 709,69 mm (80,43%).
ANALISIS SEBARAN Nepenthes spp. DI HUTAN KERANGAS CAGAR ALAM PADANG LUWAY DI KABUPATEN KUTAI BARAT
Authors: Sulistianto Sulistianto , Sumaryono Muhammad , Suhardiman Ali 
Published: January 2020

Cagar Alam Padang dengan luas ± 5.000 Ha Luway merupakan kawasan suaka alam yang karena keadaan alamnya mempunyai kekhasan/keunikan jenis tumbuhan dan/atau keanekaragaman tumbuhan seperti berbagai jenis anggrek dan Nepenthes spp. beserta gejala alam dan ekosistemnya berupa hutan kerangas dengan ciri khas lantai hutan berupa pasir (kersik) berwarna putih yang memerlukan upaya perlindungan dan pelestarian agar keberadaan dan perkembangannya berlangsung secara alami, secara administrasi berada di tiga kecamatan yaitu Melak, Damai dan Sekolaq Darat Kabupaten Kutai Barat. Pengelolaannya oleh Balai Konservasi Sumber Daya Alam (BKSDA) Kalimantan Timur. Penelitian ini dilakukan untuk mengetahui sebaran Nepenthes spp. dengan menggunakan indeks Morisita dan Nearest Neighbor Analysis serta untuk mengetahui potensinya dengan menggunakan metode analisa vegetasi. Berdasarkan hasil penelitian ini diketahui terdapat 3 (tiga) jenis Nepenthes yaitu N. Reinwardtiana hijau dan merah, N. Ampullaria dan N. Gracilis hijau dan merah, yang tersebar pada tiga lokasi penelitian yaitu di lokasi Kersik Luway ditemukan 137 individu N. Reinwardtiana yang tersebar di 10 (sepuluh) plot penelitian, di lokasi Kersik Mencege ditemukan 120 individu N. Ampullaria yang tersebar di 5 (lima) plot penelitian dan N. Gracilis di 2 (dua) plot penelitian serta di lokasi Kersik Serai ditemukan 80 individu N. Gracilis hijau pada 2 (dua) plot penelitian dan 162 individu N. Gracilis merah pada 8 plot penelitian. Dari Indek Nilai Penting (INP) diketahui dominasi tertinggi adalah N. Gracilis Merah sebesar 58,420 % dan terendah adalah N. Gracilis Hijau yaitu 15,953 %. Sedangkan hasil Indeks Morisita untuk semua jenis nepenthes di CA. Padang Luway adalah lebih dari 1 (Id˃1) yang menunjukan pola penyebaran mengelompok, begitu pula hasil pengolahan data dengan menggunakan Nearest Neighbor Analysis dengan hasil mengelompok (Cluster).
Current trends in the development of electronic commerce
Authors: Khareva V. A. , Zharkova D. A. 
Published: January 2020

This article discusses electronic commerce at the present stage of development. At present day e-commerce is developing rapidly and sales are increasing, which indicates the future development of this sector of the economy.The paper considers forms of electronic commerce, its history, types of goods delivery to the final consumer. Moreover, the article provides examples of large organizations that use delivery as an additional service for online orders.
Effect of banana bunch covering technology for quality banana production in Bangladesh
Authors: Rubel MHK , Hossain MM , Hafiz MMH , Rahman MM , Khatun MR 
Published: January 2020

This study was carried out at Horticulture farm of Bangladesh Agricultural University, Mymensingh in order to find out the effects of bunch covering materials on physio-morphological characters and shelf life of banana cv. Mehersagar. The experiment was undertaken during the period from July to November 2016 with four types of bunch covering materials namely white polythene bag, black polythene bag, blue polythene bag and old cloth along with control (no bunch covering). The experiment was laid out in randomized complete block design with five replications. The results of the investigation revealed that blue polythene bag required significantly minimum days to harvest (76.80 days) and maximum days to harvest (97.80 days) were recorded for control. Maximum bunch weight (19.90 kg), finger length (19.59 cm) and finger diameter (3.56 cm) were recorded for blue polythene bag whereas control showed minimum bunch weight (15.20 kg), finger length (14.57 cm) and finger diameter (3.07 cm). It was observed that blue polythene bag covered fruits showed minimum disease infection (2.33%), insect infestation (2.33%) and physiological disorder (1%) compared to control which experienced maximum disease infection (12.67%), insect infestation (50%) and physiological disorder (13.40%). Weight loss (11.18%), pulp moisture (66.16%), peel moisture (70.41%), disease infection (40%), disease severity (70.25%), skin colour change (4.95) were also lower in blue polythene bag than non covering control fruits. The bunches covered with blue polythene bag exhibited superior results in respect of pulp thickness (3.45cm), pulp to peel ratio (2.49), pulp dry matter (33.84%), peel dry matter (29.59%), TSS (24.28 % Brix), shelf life (11.40 days) than the rest of bunch covering materials used in this study. It can be concluded that bunch covering showed significant effect on physio-morphological traits and quality of banana.
Progressive Agriculture 30 (3): 238-252, 2019
Ambiência da Biblioteca Universitária e a Concepção de um Sistema Integrado na Universidade Federal do Espírito Santo | University Library Ambience And The Design Of A System Integrated In The Universidade Federal Do Espírito Santo
Authors: Carvalho Sandra Maria Souza de , Costa Rosa da Penha Ferreira da , Nascimento Lucileide Andrade de Lima do , Miguel Marcelo calderari 
Published: January 2020

Analisa a ambiência da Biblioteca Universitária e as percepções em torno de sua concepção no Sistema Integrado de Bibliotecas da Universidade Federal do Espírito Santo - UFES. Para tal, o estudo busca para estudo de caso o sistema de bibliotecas do multicampi da UFES no Estado do Espírito Santo. Utiliza pesquisa do tipo exploratório-descritiva com abordagem de natureza descritiva. Os resultados indicam que a política de indexação é fundamental para a rentabilização do fluxo de informação, por meio da organização e da representação da informação. Conclui que a biblioteca poderá e deverá estabelecer a sua política de indexação com base na necessidade do seu usuário a fim de permitir uma recuperação em menor tempo e com nível de precisão adequado ao usuário.Palavras-Chave: Biblioteca universitária. Representação da informação. Sistema de informação. Recuperação da informação. ABSTRACT: It analyzes the ambience of the University Library and the perceptions around its conception in the Integrated Library System of the Universidade Federal do Espírito Santo - UFES. To this end, the study seeks for a case study of the UFES multicampi library system in the State of Espírito Santo. It uses exploratory-descriptive research with a descriptive approach. The results indicate that the indexing policy is fundamental for the profitability of the information flow, through the organization and representation of the information. It concludes that the library can and should set its indexing policy based on the needs of its user in order to allow faster retrieval and user-specific accuracy.Keywords: University library. Information representation. Information system. Information retrieval.
Pengaruh Rasio Berat Asidfikasi Dan Persen Berat Adsorben Terhadap Kemurnian Gliserol Dengan Metode Asidikasi Dan Adsorpsi
Authors: Nadeak Sandro , Sinaga Mersi Suriani 
Published: January 2020

Meningkatnya produksi biodisel sebagai bahan bakar mengakibatkan meningkatnya jumlah crude gliserol sebagai hasil samping. Untuk itu diperlukan beberapa perlakuan untuk memanfatkan gliserol tersebut dengan cara memurnikannya. Penelitian ini bertujuan untuk mengetahui rasio berat asam fosfat yang terbaik pada proses asidifikasi dan persen berat adsorben limbah cangkang telur ayam pada proses adsorpsi untuk menghasilkan kemurnian gliserol dengan kadar yang tertinggi. Percobaan diawali dengan pretreatment gliserol dengan asam fosfat dengan variabel uji rasio b e r a t (b/b) asam yang ditambahkan (1:0,2; 1:0,4; 1:0,6; 1:0,8 dan 1:1), dilanjutkan dengan adsorpsi menggunakan limbah cangkang telur ayam yang sudah diaktivasi secara termal dengan variabel uji persen berat adsorben (%b/b) 3%, 6%, 9%, 12% dan 15% dengan kondisi reaksi kecepatan pengadukan 250 rpm dan waktu adsorpsi 120 menit. Hasil kemurnian terbaik didapatkan pada rasio berat (b/b) asidifikasi 1:0,6, persen berat adsorben (%b/b) 15% dengan kadar gliserol sebesar 67,22%, densitas 1,171 g/cm3, kadar air 2,796%, kadar abu13,852% dan kadar MONG 16,130%. Hasil analisa gliserol yang sudah dimurnikan belum memenuhi standard gliserol komersial berdasarkan British Standard 2621:1979 dimana kadar gliserol harus 80%, densitas 1,2671 g/cm3, kadar air 10%, kadar abu 10% dan kadar MONG 2,5%.