bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH JENIS KELAMIN TERHADAP HASIL BELAJAR MATEMATIKA SISWA
Authors: Hafidz Alifudin Abdul
Published: May 2020

Tuhan menciptakan manusia dengan dua jenis kelamin yaitu laki-laki dan perempuan. Kedua jenis ini memiliki perbedaan baik dari segi fisik maupun mental. Ada hal yang membedakan laki-laki dan perempuan yaitu salah satunya cara berpikir. Rumusan masalah dalam penelitian ini adalah “Apakah ada pengaruh jenis kelamin terhadap hasil belajar matematika siswa kelas VII SMPN 3 Waru”. Tujuan penelitian ini adalah Untuk mengetahui pengaruh jenis kelamin terhadap hasil belajar matematika siswa kelas VII SMPN 3 Waru. Jenis pendekatan penelitian ini adalah pendekatan kuantitatif. Populasi dalam penelitian ini adalah siswa kelas VII SMPN 3 Waru. Sedangkan sampel dalam penelitian ini adalah siswa kelas VIIA SMPN 3 Waru yang diambil dengan menggunakan purposive sampling. Pengumpulan data yang dilakukan dengan menggunakan metode tes yaitu berupa tes uraian atau essay. Berdasarkan analisis data diperoleh bahwa sampel berdistribusi normal dan homogen. Setelah data berdistribusi normal dan homogen, data dianalisa dengan menggunakan uji-t dan diperoleh thitung = -3,48757 dan nilai ttabel = -2,03452 dengan taraf signifikan 5%, sehingga nilai thitung = -3,48757 < ttabel = -2,03452. Dengan demikian dapat disimpulkan bahwa ada pengaruh jenis kelamin terhadap hasil belajar matematika siswa kelas VII SMPN 3 Waru.
PENERAPAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH KONTEKSTUAL BAGI PESERTA DIDIK KELAS X-IPA SMA ISLAM HASYIM ASY’ARI BATU PADA MATERI SISTEM PERSAMAAN LINEAR TIGA VARIABEL
Authors: Mustangin  , Abdul Halim Fathani  , Teguh Sugiharto
Published: May 2020

Penelitian ini bertujuan untuk meningkatkan kemampuan pemecahan masalah kontekstual peserta didik kelas X-IPA SMA Islam Hasyim Asyari Batu Tahun Pelajaran 2018/2019 melalui penerapan model pembelajaran Problem Based Learning (PBL). Jenis penelitian ini adalah Penelitian Tindakan Kelas (PTK) yang dilaksanakan dalam dua siklus dengan 2 kali pertemuan setiap siklusnya. Setiap siklus terdiri dari beberapa tahap yaitu perencanaan, pelaksanaan tindakan, observasi dan refleksi. Siklus pertama dan kedua membahas materi pokok sistem persamaan linear tiga variabel (SPLTV). Subjek dalam penelitian ini adalah peserta didik kelas X-IPA SMA Islam Hasyim Asyari Batu Tahun Pelajaran 2018/2019 yang terdiri atas 24 peserta didik. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran Problem Based Learning (PBL) dapat meningkatkan kemampuan pemecahan masalah kontekstual peserta didik.
STUDI AWAL PEMILIHAN POLIMER UNTUK DIGUNAKAN PADA INJECTIVITY DENGAN SKALA LABORATORIUM
Authors: Yasahardja Yustian , Setiawan Agung , Prihantini Agustina
Published: May 2020

EOR (Enhanched Oil Recovery) merupakan teknik lanjutan untuk mengangkat minyak jika berbagai teknik dasar sudah dilakukan tetapi hasilnya tidak ekonomis. Ada beberapa macam tipe Enhanched Oil Recovery, tetapi yang saya bahas disini ialah chemical flooding, tepatnya injeksi menggunakan polimer untuk merubah viskositas dan mobilitas dari fluida yang berperan untuk mendorong dan mendesak minyak. Tema yang diambil dalam tugas akhir ini adalah tentang EOR dengan metode injeksi kimia. Prosedur pemilihan polimer ialah uji kompatibilitas, uji viskositas, uji thermal stability, dan kemudian injectivty dengan menggunakan polimer yang terpilih. Polimer yang dipilih adalah polimer B dengan penurunan viskositas yang tidak terlalu signifikan selama 30 hari pengujian thermal stability. Dari ketiga sample A, B dan C, viskositas polimer B yang dipilih untuk injectivity. Setelah polimer B diinjeksi, terdapat pengurangan permeabilitas terhadap core Berea.
ANALISA KINERJA DESALTER PADA CRUDE DISTILLATION UNIT
Authors: Musyarofah Suci , Ibrahim Puji Astuti , Putra Aldano Bridaga
Published: May 2020

Crude Distilation Unit (CDU) merupakan unit penting sebelum crude masuk kedalam kolom distilasi maka terlebih dahulu melalui proses desalting di desalter. Desalter merupakan unit yang dioperasikan untuk membersihkan crude oil dari kontaminan seperti, garam-garam mineral, ion-ion terlarut dan solid yang terikut pada saat pengeboran minyak. Kadungan pengotor yang terdapat pada crude oil dapat menyebabkan terjadinya korosi, pemampatan pipa dan lain sebagainya. Jika kadar garam sebagai pengotor melebihi 4ptb (jumlah minimum kadar garam dalam crude) maka crude tidak dapat lanjut ke proses berikutnya di karenakan akan merusak proses. Efisiensi kinerja desalter selama 30 hari menghasilkan angka terbaik, pada tanggal 10 april 2017 yaitu 94,153%. Hal tersebut disebabkan karena pengaruh temperatur, spesific grafity dan density yang baik sehingga hasil efisiensinya optimal
THE IMPLEMENTATION OF RISK ASSESSMENT AT FILLING FUEL WORK IN FILLING SHED AREA
Authors: Maulana Sokheh , Salsabiela Mutiara , Sutangi Sutangi
Published: May 2020

Suatu industri pasti mempunyai potensi bahaya, oleh karena itu, Implementasi Risk Assessment Di PT Pertamina (Persero) TBBM Maos pada pekerjaan pengisian BBM merupakan sistem manajemen K3 dalam mengurangi resiko di setiap tahapan pekerjaan melalui metode HIRADC. Tujuan pelaksanaan Tugas Akhir ini adalah mengetahui program implementasi risk assessment, mengetahui prosedur implementasi risk assessment, mengetahui penerapan implementasi risk assessment dan mengetahui tindak lanjut risk assessment. Kegiatan Tugas Akhir ini berlangsung pada tanggal 17 Mei s.d. 17 Juni  2017 di PT Pertamina (Persero) TBBM Maos, jalan Maos, Cilacap, Jawa Tengah. Metode yang digunakan dalam melakukan pengambilan data yaitu observasi lapangan, wawancara, diskusi, dan melihat data/record perusahaan. PT Pertamina (Persero) Terminal Bahan Bakar Minyak (TBBM) Maos merupakan perusahaan yang bergerak di bidang perminyakan yang mulai beroperasi tahun 1971 dan  mempunyai tugas mendistribusikan bahan bakar minyak dengan menggunakan mobil tanki ataupun dengan RTW (Rail Tank Wagon).
ANALISA CLEANLINESS FACTOR SEBAGAI NILAI PERFORMASI KONDENSER UNIT 4 PT. INDONESIA POWER UP SURALAYA
Authors: Prihandini Ghusrina , Sinarta Muhammad Tri
Published: May 2020

PT. Indonesia Power UP Suralaya merupakan salah satu perusahaan yang bergerak dalam bidang ketenaga listrikan yang melayani kebutuhan listrik hingga seputaran daerah Jawa, Bali, dan Madura. Dengan kapasitas 3400 MW PT. Indonesia Power UP Suralaya merupakan salah satu PLTU terbesar dikawasan Asia Tenggara. Kondenser, salah satu alat utama pada proses di pembangkit listrik tenaga uap (PLTU). Kondenser itu sendiri merupakan alat yang digunakan untuk merubah uap yang digunakan untuk menggerakan turbin menjadi air yang akan digunakan kembali pada proses PLTU. Kondenser yang digunakan pada PLTU Suralaya adalah tipe surface condenser. Air pendingin yang digunakan dalam kondenser pada PLTU suralaya adalah air laut dengan menggunakan sistem one through. Cleanliness factor merupakan faktor tingkat kebersihan kondenser, cleanliness factor menjadi sangat penting untuk menunjukkan seberapa besar performance dari kondenser tersebut jika semakin besar nilai cleanliness factor yang dihasilkan maka semakin besar pula kefektifan daripada kondenser tersebut. Perbandingan nilai cleanliness factor yang dihasilkan pada tanggal 2 April 2016 adalah sebesar 91,98 % dan pada tanggal 3 April 2016 menghasilkan nilai cleanliness factor sebesar 81,18%. Performa kondenser pada unit 4 masih dalam performa yang cukup baik.
PENGARUH INJEKSI SURFAKTAN DAN POLIMER PADA RECOVERY FACTOR MINYAK SUMUR ASL
Authors: Agriandita Isnani , Layali Alfi Syahri
Published: May 2020

Pengembangan teknologi proses produksi surfaktan MES (Metil Ester Sulfonat) dari minyak sawit untuk aplikasi EOR/IOR pada lapangan ASL telah dilakukan sebelumnya melalui penelitian secara terus menerus dan berkesinambungan. Studi laboratorium recovery minyak dilakukan dalam 6 metode penginjeksian yaitu dengan Surfaktan (0.3%) + Polimer P1 (0.2%), Surfaktan (0.3%) + Polimer P2 (0.2%), Surfaktan (0.3%) Polimer P1 (0.15%) + Polimer P1 (0.2%), Surfaktan (0.3%) Polimer P2 (0.15%) + Polimer P2 (0.2%), Surfaktan (0.3%) + Surfaktan (0.3%) Polimer P1 (0.15%) + Polimer P1 (0.2%), Surfaktan (0.3%) + Surfaktan (0.3%) Polimer P2 (0.15%) + Polimer P2 (0.2%). Viskositas pada pengukuran polimer 1 (P1) sebesar 28,79 cp, polimer 2 (P2) sebesar 18,41 cp, surfaktan+Polimer 1 sebesar 11,07 cp, surfaktan+polimer 2 sebesar 9,28 cp. Recovery minyak pada injeksi Surfaktan (0.3%) + Polimer P1 (0.2%) sebesar 0,50 ml atau 11,0%, injeksi %), Surfaktan (0.3%) + Polimer P2 (0.2%) sebesar 0,45 ml atau 9,2%, injeksi Surfaktan (0.3%) Polimer P1 (0.15%) + Polimer P1 (0.2%) sebesar 0,90 ml atau 17,3%, injeksi Surfaktan (0.3%) Polimer P2 (0.15%) + Polimer P2 (0.2%) sebesar 0,85 ml atau 15,7%, injeksi Surfaktan (0.3%) + Surfaktan (0.3%) Polimer P1 (0.15%) + Polimer P1 (0.2%) sebesar 1,15 ml atau 23,0%, injeksi Surfaktan (0.3%) + Surfaktan (0.3%) Polimer P2 (0.15%) + Polimer P2 (0.2%) sebesar 1,05 ml atau 19,8%. Recovery minyak yang didapat dari tahap waterflood berada pada kisaran 50.50% sampai 59.60% IOIP (Initial Oil In Place). Oil Recovery yang didapat oleh uji core flood menggunakan injeksi chemical berada di angka 9.2% - 23%, sehingga total recovery yang diperoleh 61.2% sampai 76.90%. Dari injeksi chemical yang paling efektif dilakukan yaitu dengan injeksi Surfaktan (0.3%) + Surfaktan (0.3%) Polimer P1 (0.15%) + Polimer P1 (0.2%) dengan recovery factor (RF) 1,15 ml atau 23%.
EVALUASI KINERJA UNIT KOAGULASI DAN FLOKULASI WASTE WATER TREATMENT LIMBAH POND C-304 DI LABORATORIUM UNIT SINTESIS
Authors: Nurhidayah Nurhidayah , Solikha Dian Farkhatus
Published: May 2020

PT DyStar Colours Indonesia, merupakan salah satu pabrik penghasil zat warna tekstil terbesar di Indonesia kapasitas produksi 33 Ton/hari, 1000 Ton/bulan dan 12000 ton/ tahun. Begitupun limbah yang dihasilkan pada semua unit sintesis merupakan penghasil limbah terbanyak yaitu sekitar 9-10 ton/hari, pada unit milling limbah yang dihasilkan sekitar 6ton/hari dan unit draying limbah yang dihasilkan sekitar 5 ton/hari. Limbah Cair Pond C-304 adalah limbah buangan dari semua unit proses, biasanya limbah diberikan kepada pihak ke tiga untuk dilakukan pengolahan limbah oleh perusahaan tersebut, namun saat ini PT DyStar Colours Indonesia berencana membangun unit pengolahan limbah yang bertujuan untuk mengubah air limbah menjadi air prosess.Berkenaan dengan hal tersebut maka diperlukan penelitian skala laboratorium dimana dilakukan lima tahap perlakukan atas sampel limbah pond C-304. Lima tahap perlakuan tersebut meliputi tahap pengenceran sampel, tahap koagulasi, tahap flokulasi, tahap penyaringan, dan tahap adsorbsi. Sampel disiapkan yaitu sampel 1 (100 : 700) dan sampel 2 (100 :800). Dimana pada tahap penyaringan dibedakan dengan mengunakan penyaring berupa Pasir silika GB 1, Pasir silika GB 2, dan karbon aktif. Berdasarkan penelitian yang telah dilakukan maka Pada sampel 1 (100 : 700) dan sampel 2 (100 : 800), adsorben paling efektif adalah karbon aktif, karena nilai pH yang dihasilkan lebih netral, nilai Solid Content dan Conductivity lebih kecil daripada pasir silika GB 1 dan GB 2. Bila dibandingkan penggunaan pasir silika maka lebih efektif dengan menggunakan pasir silika GB 1 karena dilihat dari Solid Content nya yang lebih rendah di banding pasir silika GB 2.
Penerapan Permainan Playdough Dapat Meningkatkan Kemampuan Kognitif Anak
Authors: Usman Usman , Fiana Wa
Published: May 2020

Tujuan penelitian ini adalah untuk meningkatkan kemampuan kognitif anak melalui permainan playdough pada kelompok B PAUD Sinar Surya Kab. Muna  Barat. Penelitian ini termasuk Penelitian Tindakan Kelas. Penelitian ini dilaksanakan di PAUD Sinar Surya Kabupaten Muna Barat pada Tahun 2019 berjumlah 20 anak didik. Hasil penelitian ini menunjukan bahwa kemampuan kognitif anak yang dicapai keseluruhan anak didik menunjukan hasil semakin meningkat dari pra tindakan, siklus 1 dan siklus 2. Hal itu berdasarkan hasil pra tindakan dalam kemampuan kognitif anak yang tuntas berjumlah 5 anak atau dengan persentase 25%. Kemudian meningkat pada tindakan siklus I menjadi 65% dengan jumlah 13 anak, dan pada siklus II menjadi 90% dengan jumlah 18 anak. Berdasarkan hal itu maka melalui permainan playdough dapat meningkatkan kemampuan anak dalam mengenal bentuk ukuran dengan standar ketentuan secara klasikal 75%.
Meningkatkan Kemampuan Daya Ingat Anak Melalui Kegiatan Peta Pikiran Menggunakan Media Gambar
Authors: Risnajayanti Risnajayanti , Fitriani Ani
Published: May 2020

Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan daya ingat anak melaui kegiatan peta pikiran dengan menggunakan media gambar pada anak di kelompok B RA Al-Mu’minin Kota Kendari Tahun Pelajaran 2018/2019. Subjek dalam penelitian adalah guru dan anak pada Kelompok B RA Al-Mu’Minin Kota Kendari. Jenis penelitian ini adalah penelitian tindakan kelas (PTK) yang dilaksanakan dalam dua siklus dengan empat kali pertemuan. Prosedur penelitian pada setiap siklus yaitu tahap perencanaan, pelaksanaan, observasi, dan refleksi. Data yang diperoleh menggunakan metode observasi, dan dokumentasi. Berdasarkan hasil penelitian yang dilakukan pada siklus I, dan siklus II menunjukkan peningkatan kemampuan daya ingat anak di kelompok B RA Al-Mu’minin Tahun Pelajaran 2018/2019. Hal ini dapat dilihat dari sebelum pelaksanaan tindakan yang diperoleh hasil anak mencapai 40%, siklus I sebesar 60%, dan siklus II sebesar 86,67%. Keseimpulan dari hasil penelitian ini bahwa melalui kegiatan peta pikiran menggunakan media gambar dapat meningkatkan kemampuan daya ingat anak
Analisis Penggunaan Media Pasir Berwarna Pada Anak Kelompok B
Authors: Salma Sitti , Jumarni Lili
Published: May 2020

Tujuan penelitian adalah untuk menstimulasi semua aspek perkembangan anak menggunakan media pasir di PAUD Ummusshabri Kendari. Penelitian ini dilakukan pada bulan Mei tanggal 6-10 tahun 2019 dengan subjek 23 peserta didik. Penelitian merupakan penelitian deskriptif kualitatif sebagai prosedur penelitian yang menghasilkan data deskriptif berupa kata-kata tertulis atau lisan dari orang-orang dan kegiatan yang diamati. Pengumpulan data melalui observasi, wawancara, dan dokumentasi. Hasil penelitian ini dapat diterapkan di PAUD Ummusshabri Kendari dengan kegiatan penggunaan media pasir warna melalui kegiatan seperti menulis di atas pasir warna dengan jari tangan, membuat rumah dan menara dari pasir, dan mencetak pasir dengan cetakan bergambar dapat menstimulasi semua aspek perkembangan anak. Anak didik di PAUD Ummusshabri Kendari mampu mengikuti kegiatan pembelajaran penggunaan media pasir warna dengan baik dan dapat di terapkan dalam kehidupan sehari-hari anak. Selain itu juga kita dapat mengetahui bahwa anak didik sangat suka dengan kegiatan-kegiatan yang diterapkan dalam penggunaan media pasir warna
Meningkatkan Kemampuan Mengurutkan Pola Warna Melalui Metode Bermain Kooperatif
Authors: Nurlina Nurlina , Hasanah Uswatun
Published: May 2020

Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan mengurutkan pola warna pada anak kelompok B TK Presiden Kelurahan Watubangga Kecamatan Baruga Kota Kendari. Metode penelitian ini adalah Penelitian Tindakan Kelas (PTK). Prosedur pelaksanaan penelitian tindakan kelas kelas ini terdiri dari dua siklus dari tahap perencanaan, pelaksanaan, observasi/evaluasi dan refleksi. Subjek penelitian ini adalah satu orang guru dan 15 anak didik. Teknik pengumpulan data yang digunakan adalah teknik observasi dan dokumentasi. Hasil analisis pada penelitian ini menunjukkan peningkatan dari kegiatan evaluasi siklus I dan siklus II. Pada evaluasi siklus I anak yang mencapai ketuntasan belajar persentase ketercapainnya yaitu 7 orang anak atau sekitar 47%, sedangkan pada siklus II anak yang mencapai ketuntasan belajar mengalami peningkatan persentase ketercapaiannya yaitu 12 orang anak atau sekitar 80%. Hal ini menunjukkan bahwa kemampuan mengurutkan pola warna pada anak kelompok B TK Presiden Kelurahan Watubanga Kecamatan Baruga Kota Kendari meningkat
Komersialisasi Lembaga Pendidikan Anak Usia Dini Di Kota Kendari
Authors: Hewi La
Published: May 2020

Penelitian ini bertujuan untuk mendeskripsikan pembiayaan di lembaga pendidikan anak usia dini yang berada di kota Kendari masuk pada kategori komersialisasi atau tidak. Peneliti menggunakan pendekatan kualitatif untuk mendapatkan data yang komprehensif. Teknik pengumpulan data yang digunakan adalah wawancara, observasi dan studi dokumentasi. Adapun teknik analisis data dalam penelitian ini menggunakan interactive model dari Miles dan Huberman dengan langkah-langkah analisis data yaitu reduksi data, penyajian data, penarikan kesimpulan dan verifikasi. Teknik pemeriksaan keabsahan data yang digunakan adalah teknik credibility (derajat kepercayaan) yakni, triangulasi member check. Hasil penelitian menunjukkan bahwa pembiayaan pendidikan anak usia dini di kota Kendari berasal dari berbagai pihak mulai pemerintah, yayasan pendiri satuan PAUD dan orang tua peserta didik sebagai penerima layanan. Pembiayaan PAUD di kota Kendari bervariasi mulai dari pembiayaan jutaan sampai puluhan ribu bahkan ada pula yang membebaskan semua biaya pendidikan. Jadi pembiayaan PAUD di Kota Kendari belum masuk pada komersialisasi pendidikan.
The Correlation Between Work Ethic And Teacher Performance
Authors: Chairilsyah Daviq
Published: May 2020

Rendahnya gaji yang diterima belum sesuai dengan upah minimum dan masih ada guru yang memperoleh gaji kurang pantas adalah fenomena guru PAUD di Kota Rengat, Provinsi Riau. Kondisi ini sangat memprihatinkan, namun guru-guru menunjukkan disiplin kerja yang tinggi, membuat bahan pembelajaran tepat waktu dan selalu menunjukkan semangat mengajar di sekolah. Tujuan penelitian ini adalah: 1) Untuk mengetahui tingkat etos kerja guru PAUD. 2) Untuk mengetahui tingkat kinerja guru PAUD. 3) Untuk mengetahui hubungan antara etos kerja dengan kinerja guru PAUD. Pendekatan kuantitatif dengan jenis penelitian korelasi digunakan dalam metode penelitian ini. Penelitian menggunakan teknik random sampling berjumlah 97 sampel. Teknik pengumpulan data menggunakan angket dengan skala likert. Analisis data menggunakan metode uji korelasi dari pearson product moment. Kesimpulan penelitian ini adalah hubungan antara kinerja dengan etos kerja guru berada pada kategori sangat kuat dan memberikan kontribusi pada kategori tinggi
Quand la transformation digitale invite à cocréer
Authors: Amélie Clauzel
Published: May 2020

Si faire participer le client pour créer, développer ou améliorer une offre est loin d’être un sujet nouveau en marketing, de nouveaux challenges apparaissent avec l’outil digital. Les nouvelles formes d’échanges, de partage ou de discussion permettent en effet de nouvelles socialités fondées sur l’immédiateté de ces échanges et l’abondance de ces partages entre individus.
Culture data – lingua franca
Authors: Benavent Christophe
Published: May 2020

Au cours des dix dernières années l’offre de données croît de manière exponentielle. On assiste également a une formidable accumulation d’outils, de techniques et de modèles pour manipuler les données. Voilà qui représente un défi pour les sciences de gestion. La nouvelle rubrique "Culture Data" de la revue Management & Data Science a été créée pour répondre à cet enjeu. Le but de cette rubrique est de contribuer à cette circulation de la lingua franca des datas sciences, et de mettre en lumière des modèles originaux, et les savoir-faire.
Données : pour survivre, les acteurs historiques doivent répondre à trois questions stratégiques
Authors: Benyayer Louis-David
Published: May 2020

On a longtemps cru que l’emprise des acteurs numériques resterait cantonnée au logiciel, aux contenus dématérialisés et à l’information. Il est clair à présent qu’ils se servent de leur maîtrise dans ces domaines pour prendre des positions sur des marchés non numériques. Qu’il s’agisse du transport, de la gestion d’infrastructure ou de la banque, les annonces et réalisations se succèdent à un rythme hebdomadaire. Google ne construira peut-être pas de villes mais, directement ou via ses investissements, il joue déjà un rôle d’organisateur de la mobilité tandis qu’IBM participe à la gestion des infrastructures de distribution d’eau de plusieurs villes. Avec la connexion des infrastructures et des objets, l’organisation des flux physiques passe par la maîtrise des flux d’information. Les données massives sont au cœur de ce mouvement qui remet en cause les positions des acteurs historiques de ces marchés. Partage de valeur, nouveaux territoires concurrentiels et nouveaux positionnements, les données redistribuent les cartes.
Factors Affecting the Stability and Physical Properties of Pickering Emulsions Stabilized by Fe3 O4 @CNC Nanocomposites
Authors: Low Liang Ee , Ong Boon Hoong , Tey Beng Ti , Tang Siah Ying
Published: May 2020

Particle-stabilized emulsion systems, namely Pickering emulsions have recently emerged as novel yet attractive dosage form for controlled delivery of biologically active compounds. The stability and properties of emulsions are influenced by formulation and processing factors. In this study, oil-in-water Pickering emulsions were prepared using Fe3 O4 @cellulose nanocrystal (MCNC) nanocomposites and the effects of CNC/Fe3 O4 (CNC/MNP) ratios, MCNC particle concentration Cmcnc, oil volume fraction φoil and ionic strength on the colloidal stability were evaluated. The results showed that stable emulsions could be attained using MCNC particles with CNC/MNP ratio ≤ 1. Increasing CNC/MNP ratio > 1 resulted in different degree of phase separation of emulsions. The average droplet size of MCNC-stabilized Pickering emulsions (MCNC-PE) decreased from 17.34 to 3.58 µm with an increase in Cmcnc as a result of improved coalescence stability due to higher droplet surface coverage Smcnc by MCNC particles. An increase in φoil led to pronounced increase in droplet size from 2.82 to 17.00 µm. Interestingly, the ionic strength showed little or no impact on the emulsion droplet size and creaming. The storage stability study revealed that most emulsions remained fairly stable with no apparent change in droplet size. In conclusion, the physical stability of MCNC-PE was found to be greatly influenced by particulate emulsifier concentration and oil loadings. These two parameters must be well controlled in the development of Pickering emulsions for potential food and pharmaceutical applications.
THE EFFECT OF TRAINING AND WORKING FACILITIES TOWARDS CAREER DEVELOPMENT IN THE RESEARCH AND DEVELOPMENT DEPARTMENT OF LABUHAN BATU DISTRICT
Authors: Broto Bayu Eko
Published: May 2020

This study aims to determine the effect of educating and training in career development at the Labuhanbatu Regency Research and Development Department, to determine the effect of work facilities in career development at the Labuhanbatu Regency Research and Development Department,. The results showed that educating and training had a positive and significant effect in career development at the Labuhanbatu Regency Research and Development Department, work facilities also had a positive and significant effect on career development in the Labuhanbatu Regency Research and Development Department. The result of multiple regression is Y = 0.143 + 0.179X1 + 0.806X2.
PENGARUH LIFE REVIEW THERAPY TERHADAP KUALITAS HIDUP PADA DOMAIN PSIKOLOGIS PASIEN KANKER PAYUDARA YANG MENJALANI KEMOTERAPI DI RSI SULTAN AGUNG SEMARANG
Authors: Ismonah Ismonah
Published: May 2020

ABSTRACT

Illicit substance use has been becoming the major global issue. In Indonesia, inmates imprisoned for illicit substance offences accounted for 40 percent of the total inmates. This study aimed to identify the effects of family psychoeducational therapies on inmates’ self esteem in the narcotics correctional facility.  Quasi-experimental pre-post test with control group was employed in this study. Intervention group 1 received general nursing intervention whereas intervention group 2 received family psychoeducational therapies.  This study involved 31 inmates for each group. Data were collected using Rosenberg Self Esteem Scale (RSES), and were analysed using repeated ANOVA dan independent t-tests. The study demonstrated that self esteem was significantly upper amongst those who received the combination of those two therapies compared to those who received general nursing intervention standalone (p < .005). This study suggested the implementation of both general nursing intervention and specialistic therapies, particularly family psychoeducational therapies to address the anxiety problems experienced by adolescent inmates suffering from illicit substance dependences.
Can development axes be identified by socio-economic variables? The case of Czechia
Authors: Blažek Jiří , Netrdová Pavlína
Published: May 2020

This article aims to contribute to existing analyses of regional development in the post-socialist countries of Central and Eastern Europe (CEE) by conducting a detailed regional analysis at the municipal (LAU II) level in Czechia. The focus on such a detailed regional level allows for the testing of several hypotheses, for which traditional regional analyses based on NUTS II – NUTS III data were insufficient. First, we investigate whether development axes, as used in planning documents, manifest themselves at a higher level of socioeconomic development. Second, we expect the formation of clusters, exhibiting a higher level of socioeconomic development, around strong growth centres, such as the city of Mladá Boleslav. Third, we explore whether increasing differentiation has shifted from the regional level to the microregional/local level during the past 15 years of the post-socialist transformation. To address these hypotheses, we analyze a set of socioeconomic variables with the help of the spatial autocorrelation method, which allows us to generalize the inevitably, highly fragmented patterns found at the local level.
Land use and landscape changes in Czechia during the period of transition 1990–2007
Authors: Bičík Ivan , Jeleček Leoš
Published: May 2020

The article analyzes land use changes and their influence on landscape development in Czechia during the complex period of transition after 1990 to a democratic system with a capitalist economy. To analyze the database of cadastral data on land use of about 13,000 comparable basic territorial units (CTU) and their regional differentiation the typology method (the establishment of types of changes in CTUs and their portion of all CTUs) was used above all. At the same time tables follow the periods which formed over the long-term the preceding land use situation in Czechia at the start of the transition (1845–1948 and 1948–1990). Ascertained changes and trends in land use changes are then interpreted on the basis of searching out and explaining the main political, economic and social factors (or societal driving forces) that caused them. Their interaction with natural conditions is taken into account as well.
Nomothetic geography revisited: statistical distributions, their underlying principles, and inequality measures
Authors: Novotný Josef , Nosek Vojtěch
Published: May 2020

The paper focuses on some issues related to regularities in the statistical distributions of various social and environmental phenomena. Firstly, an older concern with statistical distributions of complex systems is revisited in order to exemplify surprisingly similar findings obtained across different disciplines. This interest has also been reflected in geography with a lot of activity given to the documentation and classification of the regularities but less to their explanations. As such, in the second part, some basic examples of general (statistical rather than context-specific) underlying principles for considered types of distributions are mentioned. The third part addresses related question of the measurement of inequality, which is the most commonly studied quantitative aspect of a statistical distribution. The performance of selected parametric measures of inequality is tested with respect to data coming from differently skewed distributions.
Geographical organisation of the transport system in Czechia and its development in the transformation period
Authors: Kraft Stanislav , Vančura Michal
Published: May 2020

The article deals with the geographical organization of the Czech transport system and with the changes in the transport hierarchy of settlement centres of Czechia during the transformation period. This paper focuses on long-term development tendencies in the transport hierarchy of settlement centres development, which create the basic framework for further research. It also considers changes of significance and structure in the transport hierarchy of settlement centres between 1990 and 2005 with regard to the trends in the development of the transport sector. The analyses mainly result from the Road transport census and are focused only on changes in the transport system of Czechia at the national level.
The transformation of geography education in Czechia
Authors: Řezníčková Dana
Published: May 2020

The presented contribution summarizes the development of geographical education in primary and secondary schools, in Czechia, over the period of the past 20 years (especially after 2001), during which time extensive reforms to the Czech education system have been underway. The aim of this contribution is to shed light on a wider context, mainly on the impact of curricular reforms, reform of the upper-secondary graduation examination (Maturita) as well as on the scope of research in Czech geographical education. The final part of the contribution summarizes and evaluates the main factors influencing the current and future state of geography education with a SWOT analysis.
Natural hazards and risks: the view from the junction of natural and social sciences
Authors: Vilímek Vít , Spilková Jana
Published: May 2020

The current emphasis on the research of natural hazards and risks has been widely recognized and possible mitigation of their effects is of crucial importance for the whole society. While many international activities concerning the risk management emerged during the last two decades and the international cooperation proved necessary in this field, the realm of geography still remained split to a certain extent into the research activities in physical and in social geography. Nevertheless, there is an obvious need of the cooperation of these two domains of geography. The paper introduces the significant contributions of both natural and social sciences into the research of the natural hazards and risks and stresses that the knowledge gained in both of these disciplines constitute a solid complex that can be used and applied in a particular case of a natural disaster.
A regression evaluation of thermal continentality
Authors: Mikolášková Kateřina
Published: May 2020

This paper considers climate continentality from the point of view of temperature. Primary indices, developed for climate continentality, are presented and compared and a proposal is made for a new index. The newly proposed index is based on daily temperature means and considers the influence of latitude in the Earth’s temperature distribution. The regression function was selected to best reflect the dependence of annual temperature mean on latitude. Several possible indices are evaluated.
Analogs of Fricke's theorems for analytic vector-valued functions in the unit ball having bounded L-index in joint variables.
Authors: Baksa Vitalina , Bandura Andriy , Skaskiv Oleg
Published: May 2020

In this paper, we present necessary and sufficient conditions of boundedness of $\mathbb{L}$-index in joint variables
for vector-functions analytic in the unit ball, where
$\mathbf{L}=(l_1,l_2): \mathbb{B}^2\to\mathbb{R}^2_+$ is a positive continuous vector-function,
$\mathbb{B}^2=\{z\in\mathbb{C}^2: |z|=\sqrt{|z_1|^2+|z_2|^2}\le 1\}.$
Particularly, we deduce analog of Fricke's theorems for this function class, give estimate of maximum modulus on the skeleton of bidisc.
The first theorem concerns sufficient conditions. In this theorem we assume existence of some radii,
for which the maximum of norm of vector-function on the skeleton of bidisc with larger radius does not exceed maximum of norm of
vector-function on the skeleton of bidisc with lesser radius multiplied by some costant depending only on these radii.
In the second theorem we show that boundedness of $\mathbf{L}$-index in joint variables implies validity of the mentioned estimate for all radii.
Estimation of the products of the inner radii of domains with an additional symmetry condition
Authors: Denega Iryna
Published: May 2020

In geometric function theory of complex variable extremal problems on non-overlapping domains are well-known classic direction. A lot of such problems are reduced to determination of the maximum of product of inner radii on the system of non-overlapping domains satisfying a certain conditions. Based on these elementary estimates a number of new estimates for functions realizing a conformal mapping of a disc onto domains with certain special properties are obtained. Estimates of this type are fundamental to solving some metric problems arising when considering the cor\-res\-pon\-dence of boundaries under a conformal mapping. Also, on the basis of the results concerning various extremal properties of conformal mappings, the problem of the representability of functions of a complex variable by a uniformly convergent series of polynomials is solved. In this paper, we consider the problem on maximum the products of the inner radii of $n$ disjoint domains with an additional symmetry condition that contain points of extended complex plane and the degree $\gamma$ of the inner radius of the domain that contains the zero point. An upper estimate for the
maximum of this product is found for all values of $\gamma\in(0,\,n]$. The main result of the paper generalizes and strengthens the results of the predecessors [1-4] for the case of an arbitrary arrangement of points systems on $\overline{\mathbb{C}}$. In proving the main theorem, the arguments of proving of Lemma 1 [5] and the ideas of proving Theorem 1 [3] played a key role. We also established the conditions under which the structure of points and domains is not important. The corresponding results are obtained for the case when the points are placed on the unit circle and in the case of any fixed $n$-radial system of points.
Asymptotic evaluation of the state and stiffness of the van der Paul oscillator
Authors: Zhogoleva Nadiya , Shcherbak Volodymyr
Published: May 2020

In many applications of physics, biology, and other sciences, an approach based on the concept of model equations is used as an approximate model of complex nonlinear processes. The basis of this concept is the provision that a small number of characteristic types movements of simple mathematical models inherent in systems gives the key to understanding and exploring a huge number of different phenomena. With this approach it is a priori assumed that the entire physical diverseness can be represented in the form of fairly simple model equations. It is contributes to a qualitative study of complex systems for various physical nature since basic models individually are well studied, their parameters have a physical interpretation. In particular, it is well known that oscillatory motion of various systems with a stable limit cycle can be modeled by a system consisting of one or more coupled van der Pol oscillators. Such systems are widely represented in various technical devices and in the study and modeling of some biological functions of the body, such as cardiac activity, respiration, locomotor activity, etc. It is considered a typical situation for many practical applications of control theory when the complete state vector of the system is unknown and only some of the functions of the state variables -- the outputs of the system are accessible to measurement. Therefore, the problem of determining in real time the state and parameters of such systems based on the results of measuring the output signals are relevant. One of these inverse control problems, namely, the problem of observability and parameter identification of an model oscillatory system is considered in this article. For observation and identification scheme design the method of invariant relations developed in analytical mechanics is used. Its modification in control problems allows us to synthesize additional relationships between known and unknown quantities of a dynamical system that arise during the observed motion. The method does not involve linearization of the original system and is essentially non-linear. The constructed nonlinear observer provides an asymptotic estimation of unknown parameter and velocity of oscillations.
Using the whole image and restrictions in the research of properties of some signature operations in Table Algebra
Authors: Kakhuta Nadiya , Senchenko Alexey
Published: May 2020

The features of the whole image relative to many binary relation, and restrictions on a binary relation on the set for some of the signature operations of Table Algebra are used in the work. Constructions of the whole image and restrictions are of general interest for Mathematics, and Table Algebra is a modern analogue of Codd's well-known Relational Algebra. It forms the theoretical foundation of modern query language databases. Elements of the carrier of Table Algebra specify relational table data structures, and signature operations are based on the basic table manipulations in Relational Algebra and SQL-like languages. The following results in the research of the features of the whole image were obtained: interconnections between the whole image and restrictions were found; the monotony and distribution of the whole image and restrictions on unions, a criterion of their emptiness and interconnections with first and second projection relations were proved; the whole image of the composition of relations and composition restrictions were found; the distribution of restriction on intersection of sets was set; the estimates of the distribution of the whole image of intersection and difference of sets were given; criteria for distribution of the whole image relative to the intersection and differences of sets were found. In addition, the clues were provided with the help of the whole image and restrictions on some of the signature operations of Table Algebra: intersection, union, difference, projection and joining. These representations allowed us to obtain some features of these operations, which derive directly from the features of the whole image and restrictions. It is supposed to get similar views on other signature operations of Table Algebras and to allocate their features arising from such representation. The obtained results can be used in the theory of Table Algebra as an approach to the research of the features of their signature operations, this can be used in query optimization in relational databases.
Determination of Chemical Content and some Physical Properties and Meat Pigments (Myoglobin, Meta Myoglobin and Oxymyoglobin) in Different Parts of Slaughtered Animals
Authors: S.J. Al-Husseiny Khadeeja , T. Khrebish Maryam
Published: May 2020

The current study aimed to estimate the pigments of some muscles parts taken from cows, sheep and chicken (thigh, chest and back). The chemical content including moisture, protein, lipids and ash, as well as the pH and the water holding capacity have been evaluated. Results showed that the moisture differed among three animals with high percentage of moisture, ash and lipid in back in compared with other parts of cows. while significant difference in the percentage of ash of back with other parts and in protein in chest with other parts of sheep. The significant differences were recorded in percentage of ash of three parts of chicken, also significant differences between chest and back. The water holding capacity of fresh meat samples taken from thigh, chest and back of cows, sheep and chicken significantly differ among samples. pH values which reflect a confect in water holding capacity of meat samples taken from different parts of the body and from different animal. In addition, there was a significant differences in the percentage of the presences of myoglobin, metmyoglobin and oxymyoglobin in different samples taken from different parts of the slaughtered animals.
Xylitol Production from Agricultural Wastes by Candida tropicalis
Authors: Khudhair Raed S. , I. Tami Elham
Published: May 2020

Xylan produced various agricultural residues including wheat (Furat, Abugraib and Abaa), Papyrus and Sunflower stalks in different ways, including the use of diluted acid, dilute base and self-degradation. The results showed that the acidic method in the production of xylan from various agricultural residues compared with other methods was superior, the highest quantity of xylan 187.6 µg.ml-1 was obtained from the agricultural waste of Papyrus, while it was 157.6, 157.6, 161.6 and 161.3 µg.ml-1 of wheat category of furat, wheat Abu Ghraib, wheat Abaa and sunflower stalks respectively, based on the results obtained, the xylan produced by the acidic method of the different agricultural residues was selected to determine the optimal carboon source for production of xylanase using bacteria Bacillus subtilis strain RS1 locally isolated. After the production of xylitol, the descriptive diagnosis was performed using an HPLC device, depending on the time of the 38.4 minute time lapse reaction of the standard Xylitol and compared with the time of the production of Candida tropicalis, the amount of the processed xylitol was 8.3 µg.ml-1, the calculated xylitol was compared standard xylitol
Effect Bio-fertilizer of Bacillus, Azotobacter and Pseudomonas floresence in the Growth and Production of Corn Plant (Zea mays L.)
Authors: Haran Mohammed S. , Thaher Abdal Zahra T.
Published: May 2020

A field experiment was carried out with the use of complete randomized block design (CRBD) to study the effect of five bacterial inoculations (non- inoculation, inoculation with phosphate soluble bacteria, inoculation with Azotobacter bacteria, inoculation with Pseudomonas fluorescens and Bacterial mixture). Two levels of salinity of irrigation water 3 and 6 dS.m-1 and four levels of phosphate fertilizer (0, 40, 80 and 120 kgP.ha-1). The results showed that the mixed inoculation of phosphate soluble bacteria, Azotobacter and P. fluorescens bacteria were superior to the rest of the single bacterial inoculation in plant height, dry weight of the shoot part, total grain yield, weight of 100 grains, grain weight in cop, leaf surface area, nitrogen, phosphorus and potassium concentrations in the vegetative growth and grain with 33.08%, 31.90%, 61.07%, 44.99%, 62.06%, 36.94%, 12.8%, 31.5%, 156.5%, 272.3%, 39.5% and 75.1%, respectively, in comparison with the non- inoculation and irrigated water treatment of 6 dS.m-1 (T0S2P0), while the inoculation of phosphorus soluble bacteria did not differ significantly from the P.fluorescence inoculation in most of these traits. T3S2P3 was not significantly differ from T4S2P3 combined in the increase of plant height and total grain yield compared to the non- inoculation and non-phosphorous treated at the salt level 3and6 dS.m-1. The single-dose T2S2P3 did not differ significantly from the combined T4S2P3 3 and 6 dS.m-1.
Response of Sorghum (Sorghum bicolor L. Moench) Genotypes to Different Levels of Agricultural Sulfur
Authors: Al- Faran Jameel, S.S. , Aldoghachi Kifah. A.
Published: May 2020

A field experiment was conducted in agricultural research station which is located at Al-Qurna district, 75 km north of Basrah governorate during the autumn season 2018. The aim was to study the effect of agricultural sulfur (0, 3, 6 and 9 t S.ha-1) on growth and yield of three sorghum genotypes (Inkath, Rabeh and Kafier2). The experiment was conducted as randomized complete block design in a factorial arrangement with three replications. The results showed that there were significant differences among the genotypes. The genotype kafier2 gave the highest average of plant height of 171.5 cm while the genotype inkath gave the highest weight of 1000 seed (25.59 gm), grain yield (3.97 t.ha-1). Genotype rabeh produced highest average of leaf area index and number of grain head of 3.10 and 1994.41 grain.head-1 respectively. The agricultural sulfur showed significant effect on most studied traits of sorghum (plant height, leaf area index, grain head, weight of 1000 grains and grain yield). The addition of agricultural suffer up to 9 t. ha-1 increased grain yield and produced 5.80 t.ha-1. The interaction of genotypes and agricultural sulfur showed a significant effect on some traits of growth and grain yield. The genotype inkath supplied with 9 t.ha-1 of agricultural sulfur resulted in highest grain yield of 5.80 t.ha-1, while the genotype rabeh supplied with 6 t.ha-1 of agricultural sulfur gave the highest average of leaf area index (3.54) and number of grains head (2106.33 grain.head-1).
Response of Three Varieties of Cowpea( Vigna sinensis L.) to Different levels of potassium fertilizer under southern region conditions of Iraq
Authors: Al-Furtuse Ali. K. , Aldoghachi Kifah A. , Jabail Waleed A.
Published: May 2020

A field experiment was conducted during  autumn season 2018 at Al Salam district, Maysan governorate. The aim was to evaluate some growth properties and grain yield of  three varieties of cowpea, Vigna sinensis L. (Local, Patton Boa and Atta E) grown under different levels of potassium sulphate  (0, 43, 86 and 129 kg h-1). The  experimental  design was applied according to the random complete block design in a split arrangement (Split Plots in RCBD). In on hand, the results showed a significant differences between the varieties. The local variety significantly gave highest plant length , leaf area, pods number, seeds number pod-1 and grain yield and which were 60.75cm, 2936.81cm2, 39.60 pod. plant-1, 7.69 seed pod-1, 99.93 g and 4.16 t. h-1 respectively. While the varieties Baton Boa gave highest weight of 100 seeds and gave 37.58 g. In other hand, as compare to the control, the addition of potassium up to 129 kg. h-1 lead to significant increase in plant length, leaf area, pods plant-1, seeds number pod-1 and grain yield plant-1 and total grain yield which were 53.33 cm, 3455.91 cm2, 51.61 pod. plant-1, 8.76 seed. pod-1, 125.93 g. and 5.25 T.h-1 respectively. Whereas, the control treatment (K0) gave the highest weight of 100 seeds (45.11 g). The Interaction between varieties and potassium  had a significant effect on almost  growth and yield characteristics.
Effect of Plant Residues-Treated Urea on Growth and N-Uptake of Wheat (Triticum aestivum L.)
Authors: Al-Malaky Israa A.Y. , Abdulkareem Mohammed A.
Published: May 2020

A pot experiment was carried out to study the effect of the  urea fertilizer treated with  corn or conocarpus residues on growth and N uptake  of wheat plant. Three kilograms of dry soil (Silt clay loam) were placed in a plastic pots and four levels of nitrogen (0, 60, 120 and 180 kg N ha -1) were added as urea. Urea was treated with  one of the following  methods : mix with the conocarpus leaves powder  at rate of 4% of dry soil weight, mix with the conocarpus roots powder  at rate of 4%  of dry soil weight dissolved in, aqueous extract of the corn root  at rate of  1/4 of the field capacity  ,or coated with dried aqueos extract of corn root at ratio of 10% of urea weight. Treatment included urea treated with the standard chemical inhibitor (PMA) was used. shoot dry  weight, N conc., N-uptake and N recovery were obtained. The results showed that treatment of urea fertilizer with water extract or coated  with corn root extract resulted in improved growth parameters as compared with a PMA and control treatments .However ,treating urea with leaves or root powders decreased plant growth parameters .Urea  coated with 10 % dried extract of corn roots gave the highest dry matter of 3.06 g pot-1 and nitrogen uptake of 69.90 mg pot-1 resulting  in saving of 60 kg N ha-1 to give the same results for control and PMA treatments.