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Uji Pemberian Dosis Pupuk NPK dan Pupuk Kandang Ayam Terhadap Pertumbuhan Bibit Pisang Barangan (Musa Acuminata L. Triploid Aaa.) Hasil Kultur Jaringan
No full textPenelitian ini bertujuan untuk mengetahui
pengaruh pupuk NPK dan pupuk organik kandang ayam terhadap pertumbuhan
bibit pisang barangan hasil kultur jaringan.
Penelitian ini dilaksanakan pada bulan November 2019 sampai bulan
Januari 2020 di Jalan Veteran Gg. Persatuan V, Helvetia Kecamatan Labuhan
Deli, Kabupaten Deli Serdang, Sumatera Utara. Penelitian ini menggunakan
Rancangan Acak Kelompok (RAK) Faktorial dengan 3 ulangan yang terdiri dari 2
faktor yang di teliti, yaitu Faktor dosis pupuk NPK (N) terdiri dari 3 taraf yaitu
N1: 100g/ polybag, N2: 200g /polybag, N3: 300g/ polybag. Faktor Dosis Pupuk
Kandang Ayam (K) terdiri dari 3 taraf yaitu K1: 1 Kg/polybag, K2: 2 Kg/Polybag,
K3: 3Kg/ Polybag. Terdapat 9 Kombinasi perlakuan yang di ulangan 3 kali
menghasilkan 27 plot percobaan dengan jarak ulangan 100 cm, jarak antar plot 50
cm, jumlah tanaman per plot 3 tanaman.
Hasil Penelitian menunjukkan bahwa pemberian pupuk kandang ayam
berpengaruh terhadap pertumbuhan tanaman jumlah daun dan luas daun bibit
tanaman pisang barangan merah. Interaksi perlakuan NPK dan pupuk kandang
ayam memberikan pengaruh yang tidak nyata pada semua parameter pengamata
Keterampilan Berpikir Dalam Konteks Pembelajaraan Abad Ke-21 : Kajian Teoritis dan Praktis Menuju Merdeka Belajar
No full textAnalisis Perbedaan Hasil Pengukuran Koordinat Peta Situasi Antara Yang Diukur Dengan Teodolit Dan Total Station
No full textABSTRAK Pamelang, Pratama Yoga. 2014. Analisis Perbedaan Hasil Pengukuran Koordinat Peta Situasi Antara Yang Diukur Dengan Teodolit Dan Total Station. Skripsi. Program Studi S1 Pendidikan Teknik Bangunan Fakultas Teknik Universitas Negeri Malang. Pembimbing: (I) Drs. Tonny Sudianto, M. T., (II) Ir. Titi Rahayuningsih, M. Si. Kata Kunci: Koordinat, Teodolit, Total Station. Dalam ilmu ukur tanah terdapat berbagai macam unsur-unsur materi yang dipelajari antara lain,(1) perhitungan luas lahan, (2) perhitungan sudut, (3) perhitungan elevasi, (4) perhitungan kontur. Pengukuran dalam ilmu ukur tanah menggunakan beberapa alat diantaranya pesawat penyipat datar (waterpass), pesawat penyipat ruang (teodolit) dan total station. Pelaksanaan pengukuran dan tahap perhitungan dalam ilmu ukur tanah harus dilakukan secara teliti, karena kesalahan dari pengukuran yang dilakukan akan menyebabkan hasil hitungan tidak relevan dengan keadaan sebenarnya di lapangan. Pengukuran lahan dilakukan menggunakan pesawat teodolit dan total station, dengan menentukan sudut serta jarak dari titik-titik yang ditentukan. Tujuan penelitian ini mengetahui perbedaan hasil koordinat pengukuran koordinat peta situasi antara pesawat teodolit dan total station.Proses pengukuranteodolit dan total station dilakukan pengukuran ke I dan pengukuran ke II pada titik yang sama, dimana pengukuran ke I sebagai bacaan biasa dan pengukuran ke II sebagai bacaan luar biasa.Lokasi pengukuran pada penelitian ini dilakukan dilingkungan Universitas Negeri Malang, dilakukan pada tanggal11 April 2014. Pengukuran yang dilakukan menggunakan metode polar.Analisa hasil yang digunakan adalah Uji Chi-Square dengan jumlah pengukuran 36 kali pengukuran. Hasil penelitian ini menunjukkan bahwa pesawat total station digunakan sebagai pedoman pesawat pengukur koordinat yang lain, karena dalam penelitian ini rerata kesalahan pada pengukuran koordinat dengan menggunakan pesawat total stationpada sumbu X yang berbeda pada = 16,7%, sumbu Y = 13,9%, dan sumbu Z = 27,8%. Dengan demikian pesawat total stationdapat digunakan pada pengukuran yang memerlukan ketelitan yang cukup tinggi. Hasil pengukuran koordinat peta situasidengan menggunakan pesawat theodolit didapat rerata kesalahan padasumbu X mencapai = 97,2%, sumbu Y = 91,7%, dan sumbu Z = 100%. Hasil pengukuran koordinat peta situasi dengan menggunakan pesawat total station didapat rerata kesalahan padasumbu X mencapai = 94,4%, sumbu Y = 97,2%, dan sumbu Z = 100%.Setelah diteliti dengan menggunakan metode analisis Chi-Square, kesalahan yang didapat pada pengukuran koordinat peta situasidengan theodolit didapat reratasumbu X= 16,7%, sumbu Y = 13,9%, dan sumbu Z = 27,8%. Dalam pengukuran koordinat peta situasiantara pesawat teodolit dan total station setelah diteliti di dapat hasil bahwa tidak ada perbedaan hasil pengukuran koordinat. Pengukuran koordinat peta situasidengan menggunakan pesawat total station didapat ketelitian hasil yang lebih akurat karena rerata kesalahan pesawat total station(0,001) lebih kecil dari rerata kesalahan dengan menggunakan teodolit (0,014)
Polymorphism of a Highly Asymmetrical Triacylglycerol in Milk Fat: 1‑Butyryl 2‑Stearoyl 3‑Palmitoyl-glycerol
Get PDFMilk fat has more than 200 triacylglycerols (TAGs), which
play
a pivotal role in its crystallization behavior. Asymmetrical TAGs
containing short butyryl chains contribute to a significant portion
of milk fat TAGs. This work aims to elucidate the crystallization
behavior of asymmetrical milk fat TAGs by employing the pure compound
of 1-butyryl 2-stearoyl 3-palmitoyl-glycerol (BuSP). The structural
evolution of BuSP after being cooled down to 20 °C from the melt
is evaluated by small- and wide-angle X-ray scattering (SAXS and WAXS)
and differential scanning calorimetry (DSC). The temporal structural
observation shows that BuSP crystallizes into the α-form with
short and long spacings of 4.10 and 56.9 Å, respectively, during
the first hour of isothermal hold at 20 °C. The polymorphic transformation
of the α to β′ phase occurred after 4 h of isothermal
hold, and the β′- to α-form fraction ratio was
about 70:30 at the end of the isothermal experiment (18 h). Pure β′-form
X-ray patterns are obtained from the BuSP powder with short spacings
of 4.33, 4.14, and 3.80 Å, while the long spacing of 51.2 Å
depicts a three-chain-length lamellar structure with a tilt angle
of 32°. Corresponding DSC measurements display that BuSP crystallizes
from the melt at 29.1 °C, whereas the melting of α- and
β′-forms was recorded at 30.3 and 47.8 °C, respectively.
In the absence of the β-form, the β′-polymorph
is the most stable observed form in BuSP. This work exemplarily explains
the crystallization behavior of asymmetrical milk fat TAGs and thus
provides new insights into their role in overall milk fat crystallization
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Decoding the role of triacylglycerol composition in the milk fat crystallisation behaviour: A study using buffalo milk fat fractions
Get PDFThe role of triacylglycerols (TAGs) composition in milk fat crystallisation is evaluated from a new perspective by correlating the crystal structures and their predicted TAG contributors. Four different TAG groups, defined by their fatty acid (FA) chain length and saturation are proposed to explain the crystallisation behaviour of different milk fat samples, namely TAGs containing (i) fully saturated long chain FAs, (ii) single unsaturated long-chain FA and (iii) multi unsaturated long-chain FAs, as well as (iv) short-chain FAs. Samples containing different TAGs proportions were obtained from two-step dry fractionation of buffalo milk fat. Liquid chromatography and mass spectrometry (LCMS) was employed to determine the TAGs composition. The crystallisation characteristics were evaluated using small-angle X-ray scattering (SAXS), differential scanning calorimetry (DSC) and polarised light microscopy. The results confirm that fully saturated long chain TAGs are responsible for the formation of high melting point 2L-crystals (d-spacing: 44.1–49.7 Å), whilst the low melting point 3L-crystals (64.4–72.8 Å) are mainly contributed by long chain TAGs containing unsaturated fatty acids. Further, the crystallisation inhibiting effect of asymmetrical TAGs, containing short chain fatty acid (C4-6) is evident. As a final point, effects of the four TAG groups, each given with a specific composition, were examined closely also with respect to their influence on the nucleation and polymorphic transformation kinetics of milk fat crystals
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