733 research outputs found
William Shawcross. Cambodia's New Deal
No full textBalling Nicolas. William Shawcross. Cambodia's New Deal. In: Politique étrangère, n°3 - 1994 - 59ᵉannée. pp. 891-892
Professor at the Prague polytechnic Carl Joseph Napoleon Balling.
No full textProfessor K. N. Balling is undoubtedly one of the world-widely recognized figures in technical chemistry, particularly in fermenting chemistry and technology. The Czech science and technology of chemistry and most of all the industrial branches he cooperated with, including brewing, significantly owe him.Professor K. N. Balling is undoubtedly one of the world-widely recognized figures in technical chemistry, particularly in fermenting chemistry and technology. The Czech science and technology of chemistry and most of all the industrial branches he cooperated with, including brewing, significantly owe him
PENGARUH PENGGUNAAN STRATEGI SNOW BALLING DITINJAU DARI MOTIVASI BELAJAR TERHADAP HASIL BELAJAR KOGNITIF BIOLOGI SISWA SMP N 1 SANDEN
No full textTujuan yang ingin dicapai dalam penelitian ini sebagai berikut: (1). Mengetahui pengaruh strategi Snow Balling terhadap hasil belajar kognitif siswa (2). Mengetahui pengaruh strategi Snow Balling terhadap motivasi belajar siswa (3). Mengetahui interaksi antara strategi belajar Snow Balling dengan motivasi belajar terhadap hasil belajar kognitif siswa.
Penelitian ini merupakan Penelitian Eksperimen Semu (Quasi Experimental Research) menggunakan Randomized Control Only Design. Model pembelajaran sebagai variabel bebas, hasil belajar kognitif dan motivasi belajar sebagai variabel terikat. Populasi penelitian ini adalah seluruh siswa kelas VII SMP N 1 Sanden Tahun Ajaran 2011/2012. Sampel pada penelitian ini adalah siswa kelas VII C sebagai kelas eksperimen dan kelas VII D sebagai kelas kontrol. Teknik pengambilan sampel dengan “Cluster Random Sampling”. Teknik pengumpulan data hasil belajar kognitif menggunakan teknik tes. Pengukuran motivasi menggunakan angket. Teknik analisis data menggunakan anava.
Hasil penelitian menunjukkan bahwa pembelajaran dengan strategi Snow Balling berpengaruh terhadap hasil belajar siswa. pengaruh tersebut berupa hasil belajar kognitif yang lebih baik dari pada pembelajaran yang biasa dilakukan oleh guru. Kesimpulan hasil penelitian ini sebagai berikut: (1). Penggunaan strategi Snow Balling berpengaruh terhadap hasil belajar biologi ranah kognitif (2). Tidak ada pengaruh signifikan antara motivasi belajar terhadap hasil belajar biologi (3). Tidak ada interaksi antara srategi belajar dan motivasi belajar terhadap hasil belajar.
Kata kunci: Snow Balling, hasil belajar, motivas
Investigation of Balling Characteristics of Mixture of Iron Oxide Bearing Wastes and Iron Ore Concentrates
No full textIron oxide bearing wastes in form of dust and sludges are hard to handle because of their micron size particles and moisture content in case of sludge. More often they are stockpiled in large quantities that can occupy large area of real and agricultural estates and cause pollution. Balling or palettization, an agglomeration process was used to process the wastes in order to address the problem of micron size particles and to make them fit for recycling back into metallic iron production route like blast furnace. Balling or green pelletization is the process of forming nearly
spherical shaped granules by tumbling moistened particulates with or without binders in balling drums or discs disc. For a pellet to be effective either for being transported or for being recycled in blast furnace to produce metallic iron without disintegrating to dust its balling characteristics should measure up to required standard. Most outstanding of those balling characteristics include Drop Number, Green or Wet Compression Strength, Dry Compression Strength, Abrasion and Tumbler Indices. In this work iron oxide bearing wastes was mixed with iron ore concentrates in various proportions. These mixes were taken through balling or wet pelletization process using Radicon Balling Disc. The balls formed balls were taken through Drop number tests adopting the Free Fall
method, where balls are made to fall freely from a height of 50 mm on steel surface, Green compression and Dry compression tests using a 5 kN Universal Testing Machine (INSTRON Corp., model 1011 UK) System while Abrasion and Tumbler indices tests were conducted using Tumbler
Index cylinder or drum and adopting ASTM method. It was found that Drop number as high as 7.8 times, Green compression strength and Dry compression strength up to 11.7 N/pellet and 25.99 N/pellet respectively were attained by some of the pellets. The Tumbler and Abrasion indices
recorded were up to above 95% and 5% respectively. These values are higher than the minimum recommende
Efektivitas Penggunaan Strategi Snow Balling Untuk Materi Pengaruh Keunggulan Lokasi Terhadap Kegiatan Komunikasi Kelas VIII SMP N 2 Banyudono Tahun 2014/2015
No full textPenelitian dilakukan di SMP N 2 Banyudono Desa Jetis Kelurahan Jembungan Kecamatan Banyudono Kabupaten Boyolali. Setiap proses pembelajaran harus memperhatikan strategi yang akan digunakan agar pembelajaran berjalan dengan aktif dan efektif antara pendidik dan peserta didik.
Tujuan penelitian ini adalah mengetahui keefektifan strategi Snow Balling pada materi pengaruh keunggulan lokasi terhadap kegiatan komunikasi Kelas VIII SMP N 2 Banyudono Tahun 2014/2015. Metode penelitian ini adalah eksperimen, siswa kelas VIII/A sampai VIII/H SMP N 2 Banyudono dengan jumlah 278 siswa. Kedelapan kelas tersebut terbagi menjadi kelas eksperimen dan kelas kontrol. Kelas eksperimen sebanyak 6 kelas dalam proses pembelajarannya menggunakan strategi Snow Balling. Sedangkan kelas kontrol sebanyak 2 kelas dalam proses
pembelajarannya menggunakan strategi konvensional seperti ceramah. Hasil dari penelitian ini menyimpulkan bahwa (1) (Penggunaan strategi Snow Balling pada materi pengaruh keunggulan lokasi terhadap kegiatan komunikasi kelas VIII SMP N 2 Banyudono menunjukkan peningkatan hasil pembelajarannya yaitu sebesar 9,58 yaitu dari hasil Pre-test 81,41 menjadi 90,99 hasil Post-testnya. (2)
Berdasarkan hasil uji Mann-Whitney dan uji Wilcoxon terdapat 0,000 yang menunjukkan bahwa ada perbedaan antara kelas eksperimen dan kelas kontrol. Dilihat dari peningkatan hasil pembelajarannya kelas eksperimen lebih tinggi yaitu 9,58 dibandingkan kelas kontrol dengan nilai 8,21
Revolutionizing medicine in the 21(st) century through systems approaches
No full textpeer reviewedPersonalized medicine is a term for a revolution in medicine that envisions the individual patient as the central focus of healthcare in the future. The term "personalized medicine", however, fails to reflect the enormous dimensionality of this new medicine that will be predictive, preventive, personalized, and participatory-a vision of medicine we have termed P4 medicine. This reflects a paradigm change in how medicine will be practiced that is revolutionary rather than evolutionary. P4 medicine arises from the confluence of a systems approach to medicine and from the digitalization of medicine that creates the large data sets necessary to deal with the complexities of disease. We predict that systems approaches will empower the transition from conventional reactive medical practice to a more proactive P4 medicine focused on wellness, and will reverse the escalating costs of drug development an will have enormous social and economic benefits. Our vision for P4 medicine in 10 years is that each patient will be associated with a virtual data cloud of billions of data points and that we will have the information technology for healthcare to reduce this enormous data dimensionality to simple hypotheses about health and/or disease for each individual. These data will be multi-scale across all levels of biological organization and extremely heterogeneous in type - this enormous amount of data represents a striking signal-to-noise (S/N) challenge. The key to dealing with this S/N challenge is to take a "holistic systems approach" to disease as we will discuss in this article
PENERAPAN METODE PEMBELAJARAN SNOW BALLING UNTUK MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA PADA MATA PELAJARAN MATEMATIKA DI KELAS IV MI AULIA CENDEKIA PEKANBARU
No full textABSTRAK
Fitria Wardani, (2022): Penerapan Metode Pembelajaran Snow Balling
untuk Meningkatkan Kemampuan Komunikasi
Matematis Siswa Kelas IV pada Muatan Pelajaran
Matematika MI Aulia Cendekia Pekanbaru.
Penelitian ini bertujuan untuk mendeskripsikan peningkatan kemampuan
komunikasi matematis siswa pada muatan pelajaran matematika kelas IV MI
Aulia Cendekia Pekanbaru melalui metode pembelajaran Snow Balling.
Penelitian ini dilatarbelakangi oleh rendahnya komunikasi matematis siswa pada
muatan pelajaran matematika. Penelitian ini merupakan penelitian tindakan
kelas, subjek dalam penelitian ini adalah 1 orang guru dan 17 orang siswa kelas
IV A MI Aulia Cendekia Pekanbaru tahun pelajaran 2022/2023. Objek penelitian
ini adalah metode pembelajaran Snow Balling dan kemampuan komunikasi
matematis. Penelitian ini dilaksanakan selama 2 siklus, tiap siklus dilaksanakan
2 kali pertemuan. Teknik pengumpulan data pada penelitian ini adalah observasi,
tes, dan dokumentasi. Sedangkan teknik analisis data yang digunakan yaitu
analisis deskriptif kualitatif dengan persentase. Hasil penelitian dan analisis data
menunjukkan bahwa bahwa kemampuan komunikasi Matematika siswa sebelum
tindakan perbaikan pembelajaran masih rendah, dimana 1 orang siswa atau 5%
berada pada kategori baik sekali, 6 orang siswa atau 35% berada pada kategori
baik, 7 orang siswa atau 41% berada pada kategori kurang, dan 3 orang siswa
atau 17% berada pada kategori kurang sekali. Setelah dilakukan tindakan
perbaikan pembelajaran melalui metode pembelajaran Snow Balling Pada siklus I
kemampuan komunikasi matematis siswa me n i n gk a t , d ima n a 4 orang
siswa atau 23% berada kategori baik sekali, 8 orang siswa atau 47% pada kategori
baik, 3 orang siswa atau 17% berada pada kategori kurang, dan 2 orang siswa
atau 11 % b e r a d a pada kategori kurang sekali. Pada siklus II kemampuan
komunikasi matematis siswa meningkat signifikan, dimana 7 orang siswa atau
41% berada pada kategori baik sekali, 7 orang siswa atau 41% berada pada
kategori baik dan 3 orang siswa atau 17% berada pada kategori cukup. Dengan
demikian dapat disimpulkan bahwa metode pembelajaran Snow Balling dapat
meningkatkan kemampuan komunikasi matematis siswa di kelas IV MI Aulia
Cendekia Pekanbaru.
Kata Kunci: Metode Pembelajaran Snow Balling, Kemampuan Komunikasi
Matematis
Large-scale albuminuria screen for nephropathy models in chemically induced mouse mutants
No full textBackground/Aim: Phenotype-driven screening of a great pool of randomly mutant mice and subsequent selection of animals showing symptoms equivalent to human kidney diseases may result in the generation of novel suitable models for the study of the pathomechanisms and the identification of genes involved in kidney dysfunction. Methods: We carried out a large-scale analysis of ethylnitrosourea (ENU)-induced mouse mutants for albuminuria by using qualitative SDS-polyacrylamide gel electrophoresis. Results: The primary albuminuria screen preceded the comprehensive phenotypic mutation analysis in a part of the mice of the Munich ENU project to avoid loss of mutant animals as a consequence of prolonged suffering from severe nephropathy. The primary screen detected six confirmed phenotypic variants in 2,011 G1 animals screened for dominant mutations and no variant in 48 G3 pedigrees screened for recessive mutations. Further breeding experiments resulted in two lines showing a low phenotypic penetrance of albuminuria. The secondary albuminuria screen was carried out in mutant lines which were established in the Munich ENU project without preceding primary albuminuria analysis. Two lines showing increased plasma urea levels were chosen to clarify if severe kidney lesions are involved in the abnormal phenotype. This analysis revealed severe albuminuria in mice which are affected by a recessive mutation leading to increased plasma urea and cholesterol levels. Conclusion: Thus, the phenotypic selection of ENU-induced mutants according to the parameter proteinuria in principle demonstrates the feasibility to identify nephropathy phenotypes in ENU-mutagenized mice. Copyright (C) 2005 S. Karger AG, Basel
Component parts of the World Heat Flow Data Collection
No full textComponent parts of the World Heat Flow Data Collectio
An optimised iron ore grinding strategy based on balling fundamentals
No full textIn order to meet the future demand of pellets for the blast furnace, the output of the grinding circuit of the Tata Steel IJmuiden pellet plant needs to be increased. As the power consumption of the grinding circuit is already at its maximum, the grinding itself and/or the grinding strategy needs to be optimised, leading to a higher circuit output while still achieving the required fineness. Further processes within the pellet plant require the grinding product to be of a certain fineness which is currently determined by measuring the Blaine number of the grinding circuit output, which is a measurement of the available surface within the grind. At the IJmuiden pellet plant, grinding is done in a closed grinding circuit, meaning that only particles smaller than a certain size are allowed to leave the circuit. Particles that are to coarse are screened out of the main flow of material and fed back to the grinding mills. The pellet feeds of the IJmuiden pellet plant are blends of different ores. The compositions of these blends are based on several factors such as availability, price and iron content. Properties that affect the grinding of the ores, such as initial fineness and grindability, however, are not taken into consideration in the selection of ores. Given this fact, a possibility to increase the grinding capacity might be found in treating the feed of the grinding circuit not as a single material, like is done at the moment, but as a collection of individual ores. This approach allows for a blending/grinding strategy to be designed based on overgrinding softer ores and leaving the harder ores coarser while still achieving the required overall fineness. As this would reduce the energy needed to achieve a certain fineness, this would increase the grinding capacity. Based on knowledge gained through a literature study on the binding mechanisms in iron ore green pellets, the strength and plasticity of green pellets is believed to be affected by such variations in individual ore fineness within the ore feed. To study the influence of individual ore fineness on green pellet strength and plasticity, an experimental study was designed that involved balling and testing of green pellets balled from four different feeds that only varied in individual ore fineness. In addition, the influence of strain rate on strength and plasticity of these same pellets was tested. It was found that variations in individual ore fineness had no significant influence on the strength and plasticity of green pellets. Pellet plasticity and strength were found to be strain rate dependent even for very low strain rates. Based on these experimental results, recommendations for further work and possible improvements in pelletising process monitoring were put forward.section Resource EngineeringCivil Engineering and Geoscience
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