2,146 research outputs found
Perbandingan Motivasi Belajar Peserta Didik Berlatar Belakang Petani dan Nelayan di SDI Aeteke Kecamatan Lio Timur Kabupaten Ende Tahun 2020
This study was conducted to determine whether there is a difference in learning motivation between students from farmers family and fishermen family at SDI Aeteke. The research problem is formulated as follows: 1). How is the learning motivation of farmers' students? 2). How is the learning motivation of fishermen's children? The research method used is descriptive quantitative, with comparative analysis to determine the differences in learning motivation between farmers' children and fishermen's children. The results showed that at SDI Aeteke there was no significant difference in learning motivation between students from farmer family backgrounds and fishermen's children, where the learning motivation score of students from farming family backgrounds was 78.5% while students from fishermen family backgrounds were 77. 9% or only 0.6% difference. However, both of them have the highest and lowest scores on different indicators where students from farming family backgrounds have high motivation scores on the interest indicator and the lowest on the student self-awareness indicator, while students with fishing family backgrounds have high motivation scores on the indicator of the desire to succeed and the lowest indicator of the condition of the student learning environment
Field theoretic calculation of the surface tension for a model electrolyte system
We carry out the calculation of the surface tension for a model electrolyte
to first order in a cumulant expansion about a free field theory equivalent to
the Debye-H\"uckel approximation. In contrast with previous calculations, the
surface tension is calculated directly without recourse to integrating
thermodynamic relations. The system considered is a monovalent electrolyte with
a region at the interface, of width h, from which the ionic species are
excluded. In the case where the external dielectric constant epsilon_0 is
smaller than the electrolyte solution's dielectric constant epsilon we show
that the calculation at this order can be fully regularized. In the case where
h is taken to be zero the Onsager-Samaras limiting law for the excess surface
tension of dilute electrolyte solutions is recovered, with corrections coming
from a non-zero value of epsilon_0/epsilon.Comment: LaTeX, 14 pages, 3 figures, 1 tabl
Etnomatematika: Konten Matematika Sekolah Dasar pada Rumah Adat di Kampung Waka Ende NTT
The difficulty of elementary school students in learning mathematics can be overcome through contextual learning, one of which is by using a cultural context. Mathematical content is widely available in cultural elements, one of which is traditional houses. This study aims to explore elementary school math concepts in traditional houses in Waka village, Ende, NTT. This research is a qualitative research with an ethnographic approach. The process of collecting data in this study was carried out by interview, observation and documentation. The results showed that the Waka traditional house was related to elementary school mathematics. Mathematical concepts found in traditional houses in Waga Village are dominated by the concepts of primitive geometric elements (such as points, lines, line segments, angles) and flat and space forms.Kesulitan siswa sekolah dasar dalam mempelajari matematika dapat diatasi melalui pembelajaran yang kontekstual, salah satunya dengan menggunakan konteks budaya. Konten matematika banyak tersedia dalam unsure-unsur budaya, salah satunya adalah rumah adat. Penelitian ini bertujuan untuk mengeksplorasi konsep-konsep matematika sekolah dasar pada rumah adat di kampung Waka, Ende, NTT. Penelitian ini merupakan penelitian kualitatif dengan pendekatan etnografi. Proses pengumpulan data pada penelitian ini dilakukan dengan wawancara, observasi dan dokumentasi. Trianggulasi data digunakan untuk mengecek keabsahan data. Hasil penelitian menunjukan bahwa rumah adat Waka mengandung unsur matematika sekolah dasar. Konsep matematika yang ditemukan pada rumah adat di Kampung Waga didominasi oleh konsep unsur-unsur geometri primitif (seperti titik, garis, ruas garis, sudut) dan bentuk bangun datar dan bangun ruang
Edukasi Kesadaran Menjaga Lingkungan Bersih di Sekolah Dasar Inpres Ende 14
The purpose of this activity is to shape the mindset of the students of the Inpres Ende 14 Elementary School as the younger generation and as family members to care and maintain the surrounding environment and students can also be used as ambassadors for cleanliness in their families and homes. This activity is expected to create a clean, comfortable and healthy environment. Therefore, environmental hygiene must be applied from an early age so that they have a far-sighted mindset and will become agents of change in their environment. The method used in this activity is the lecture method. The lecture method is used to provide students with an understanding of the importance of maintaining a clean and healthy environment and the problems it causes and its impact on the environment as well as how to sort waste and process waste. After this activity, the waste management process will be continued. The activity begins with delivering material about a clean environment. The material presented is about the importance of keeping the environment clean, the origin of waste, the problems caused by waste and its impact on the environment. In these activities, the students seemed very enthusiastic and enthusiastic and the students also seemed very happy. After delivering the material, it was followed by cleaning the school environment and its surroundings as an application of lecture activities
Comparison of absolute gain photometric calibration between Planck/HFI and Herschel/SPIRE at 545 and 857 GHz
We compare the absolute gain photometric calibration of the Planck/HFI and
Herschel/SPIRE instruments on diffuse emission. The absolute calibration of HFI
and SPIRE each relies on planet flux measurements and comparison with
theoretical far-infrared emission models of planetary atmospheres. We measure
the photometric cross calibration between the instruments at two overlapping
bands, 545 GHz / 500 m and 857 GHz / 350 m. The SPIRE maps used have
been processed in the Herschel Interactive Processing Environment (Version 12)
and the HFI data are from the 2015 Public Data Release 2. For our study we used
15 large fields observed with SPIRE, which cover a total of about 120 deg^2. We
have selected these fields carefully to provide high signal-to-noise ratio,
avoid residual systematics in the SPIRE maps, and span a wide range of surface
brightness. The HFI maps are bandpass-corrected to match the emission observed
by the SPIRE bandpasses. The SPIRE maps are convolved to match the HFI beam and
put on a common pixel grid. We measure the cross-calibration relative gain
between the instruments using two methods in each field, pixel-to-pixel
correlation and angular power spectrum measurements. The SPIRE / HFI relative
gains are 1.047 ( 0.0069) and 1.003 ( 0.0080) at 545 and 857 GHz,
respectively, indicating very good agreement between the instruments. These
relative gains deviate from unity by much less than the uncertainty of the
absolute extended emission calibration, which is about 6.4% and 9.5% for HFI
and SPIRE, respectively, but the deviations are comparable to the values 1.4%
and 5.5% for HFI and SPIRE if the uncertainty from models of the common
calibrator can be discounted. Of the 5.5% uncertainty for SPIRE, 4% arises from
the uncertainty of the effective beam solid angle, which impacts the adopted
SPIRE point source to extended source unit conversion factor (Abridged)Comment: 13 pages, 10 figures; Incorporates revisions in response to referee
comments; cross calibration factors unchange
Power Spectrum Analysis of Far-IR Background Fluctuations in 160 Micron Maps From the Multiband Imaging Photometer for Spitzer
We describe data reduction and analysis of fluctuations in the cosmic far-IR
background (CFIB) in observations with the Multiband Imaging Photometer for
Spitzer (MIPS) instrument 160 micron detectors. We analyzed observations of an
8.5 square degree region in the Lockman Hole, part of the largest low-cirrus
mapping observation with this instrument. We measured the power spectrum of the
CFIB in these observations by fitting a power law to the IR cirrus component,
the dominant foreground contaminant, and subtracting this cirrus signal. The
CFIB power spectrum in the range 0.2 arc min^{-1} <k< 0.5 arc min^{-1} is
consistent with previous measurements of a relatively flat component. However,
we find a large power excess at low k, which falls steeply to the flat
component in the range 0.03 arc min^{-1} <k< 0.1 arc min^{-1}. This low-k power
spectrum excess is consistent with predictions of a source clustering
"signature". This is the first report of such a detection in the far-IR.Comment: This is the version of the paper accepted by A&A, which includes
various changes and new material. The superior-quality PDF with integrated
figures may be downloaded at
http://www-astro.lbl.gov/~bruce/spitzerpaper1/cfibaa_pub.pdf 15 pages,
figures integrated with text. This paper supersedes astro-ph/050416
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