13,275 research outputs found
PE NGGUNAAN MODEL DISCOVERY LEARNING UNTUK MENINGKATKAN DISIPLIN DAN HASIL BELAJAR SISWA DALAM PEMBELAJARAN PKN POKOK BAHASAN PERATURAN PERUNDANG - UNDANGAN (Penelitian Tindakan Kelas di Kelas V SDN Cibeunying 1 Kecamatan Majalaya Kabupaten Bandung Tahun Ajaran 2015/2016)
Penelitian ini bertujuan untuk meningkatkan
disiplin
dan hasil belajar siswa melalui
model pembelajaran
Discovery learning
dalam pembelajaran
PKn
pokok bahasan
Peraturan
Perundang
-
undangan
.
Penelitian tindakan kelas ini dilaksanakan di kelas V SDN
Cibeunying
1
Kecamata
Majalaya Kabupaten Bandung
yang tidak menggunakan model pembelajaran yang
variatif sehingga siswa menjadi pasif dan hasil belajarnya masih banyak yang belum mencapai
KKM mata p
elajaran
PKn
yaitu 60. Sehingga perlu adanya inovasi dalam proses pembelajaran,
salah satunya dengan penggunaan model
Discovery Learning
. Penelitian ini menggunakan
metode penelitian tindakan kelas (PTK) dengan menggunakan sistem siklus yang terdiri dari
p
erencanaan, pelaksanaan, observasi, dan refleksi. Penelitian ini dilaksanakan dalam 2 siklus.
Teknik evaluasi yang digunakan pada penelitian ini adalah teknik tes dan non tes. Teknik tes
digunakan untuk mengetahui hasil belajar siswa, dan teknik non tes di
gunakan untuk
mengetahui
disiplin
dan aktivitas belajar siswa. Hasil penelitian menunjukkan bahwa
penggunaan model pembelajaran
Discovery learning
dapat meningkatkan
disiplin
dan hasil
belajar siswa. Hal tersebut dapat dilihat dari nilai rata
-
rata peningka
tan sikap
disiplin
dan
kemampuan siswa dalam mengerjakan soal pretes dan postes dari pra siklus, siklus I sampai
siklus II, yaitu pada siklus I
disiplin
siswa yang memperoleh kriteria tercapai sebesar
3
5%
sedangkan hasil belajar siswa sebesar
91
% memenuhi
KKM. Kemudian pada siklus II
diperoleh hasil
disiplin
siswa meningkat sebesar
7
5% dan hasil belajar siswa meningkat sebesar
96
% yang memenuhi KKM. Kesimpulan yang diperoleh dari penelitian ini adalah penggunaan
model
Discovery Learning
dapat meningkatkan
disiplin
dan hasil belajar siswa dalam
pembelajaran
PKn
pokok bah
asan Peraturan Perundang
-
undangan
di kelas V SDN
cibeunying
1
Kecamatan
Majalaya
Kabupaten
Bandung
. Dengan demikian model
Discovery learning
dapat dijadikan sebagai salah satu model pembelaja
ran untuk diterapkan pada pembelajaran
PKn
.
Kata Kunci:
discovery Learning
,
Disiplin
, Hasil Belaja
On relativistic approaches to the pion self-energy in nuclear matter
We argue that, in contrast to the non-relativistic approach, a relativistic
evaluation of the nucleon--hole and delta-isobar--nucleon hole contributions to
the pion self-energy incorporates the s-wave scattering, which requires a more
accurate evaluation. Therefore relativistic approach containing only these
diagrams does not describe appropriately the pion self-energy in isospin
symmetric nuclear matter. We conclude that, a correct relativistic approach to
the pion self-energy should involve a more sophisticated calculation in order
to satisfy the known experimental results on the near-threshold behaviour of
the pion-nucleon (forward) scattering amplitude.Comment: 7 pages,1 figur
Effect of topology on the transport properties of two interacting dots
The transport properties of a system of two interacting dots, one of them
directly connected to the leads constituting a side-coupled configuration
(SCD), are studied in the weak and strong tunnel-coupling limits. The
conductance behavior of the SCD structure has new and richer physics than the
better studied system of two dots aligned with the leads (ACD). In the weak
coupling regime and in the case of one electron per dot, the ACD configuration
gives rise to two mostly independent Kondo states. In the SCD topology, the
inserted dot is in a Kondo state while the side-connected one presents Coulomb
blockade properties. Moreover, the dot spins change their behavior, from an
antiferromagnetic coupling to a ferromagnetic correlation, as a consequence of
the interaction with the conduction electrons. The system is governed by the
Kondo effect related to the dot that is embedded into the leads. The role of
the side-connected dot is to introduce, when at resonance, a new path for the
electrons to go through giving rise to the interferences responsible for the
suppression of the conductance. These results depend on the values of the
intra-dot Coulomb interactions. In the case where the many-body interaction is
restricted to the side-connected dot, its Kondo correlation is responsible for
the scattering of the conduction electrons giving rise to the conductance
suppression
Scalable Ion Trap Quantum Computing without Moving Ions
A hybrid quantum computing scheme is studied where the hybrid qubit is made
of an ion trap qubit serving as the information storage and a solid-state
charge qubit serving as the quantum processor, connected by a superconducting
cavity. In this paper, we extend our previous work [1] and study the
decoherence, coupling and scalability of the hybrid system. We present our
calculations of the decoherence of the coupled ion - charge system due to the
charge fluctuations in the solid-state system and the dissipation of the
superconducting cavity under laser radiation. A gate scheme that exploits rapid
state flips of the charge qubit to reduce decoherence by the charge noise is
designed. We also study a superconducting switch that is inserted between the
cavity and the charge qubit and provides tunable coupling between the qubits.
The scalability of the hybrid scheme is discussed together with several
potential experimental obstacles in realizing this scheme
Attīstības un inovācijas izpēte Latvijā: tēžu krājums
Sagatavots Valsts pētījumu programmas “Inovācija un ilgtspējīga attīstība: Latvijas pēckrīzes procesi globālā kontekstā (SUSTINNO)” ietvaros
Probing dense and hot matter with low-mass dileptons and photons
Results on low-mass dileptons, covering the very broad energy range from the
BEVALAC up to SPS are reviewed. The emphasis is on the open questions raised by
the intriguing results obtained so far and the prospects for addressing them in
the near future with the second generation of experiments, in particular HADES,
NA60 and PHENIX.Comment: 6 pages, 8 figures, Proceedings of Hard Probes 2004 Conference,
Ericeira, November 4-10, 2004. Caption of Figure 2 corrected. To be published
in Eur. Phys. J. C. The orginal version is available at www.springerlink.co
Attīstības un inovācijas izpēte Latvijā: tēžu krājums
Sagatavots Valsts pētījumu programmas “Inovācija un ilgtspējīga attīstība: Latvijas pēckrīzes procesi globālā kontekstā (SUSTINNO)” ietvaros
Hund's coupling and the metal-insulator transition in the two-band Hubbard model
The Mott-Hubbard metal-insulator transition is investigated in a two-band
Hubbard model within dynamical mean-field theory. To this end, we use a
suitable extension of Wilson's numerical renormalization group for the solution
of the effective two-band single-impurity Anderson model. This method is
non-perturbative and, in particular, allows to take into account the full
exchange part of the Hund's rule coupling between the two orbitals. We discuss
in detail the influence of the various Coulomb interactions on thermodynamic
and dynamic properties, for both the impurity and the lattice model. The
exchange part of the Hund's rule coupling turns out to play an important role
for the physics of the two-band Hubbard model and for the nature of the
Mott-transition
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