162 research outputs found
PENERAPAN STRATEGI PEMBELAJARAN LANGSUNG MENGGUNAKAN PENDEKATAN KETERAMPILAN BERTANYA UNTUK MENJELASKAN MATERI MODULASI PADA SISWA TAV 1 SMK NEGERI 2 KUPANG
Penerapan strategi pembelajaran langsung dalam penelitian ini adalah suatu model yang menggunakan peragaan dan penjelasan guru disertai dengan latihan dan umpan balik siswa untuk membantu siswa mendapatkan pengetahuan dan keterampilan nyata yang dibutuhkan untuk pembelajaran lebih jauh. Tujuan penelitian ini adalah untuk melihat apakah ada perubahan pada hasil belajar siswa pada mata pelajaran Penerapan Sistem Radio dan Televisi. Jenis penelitian ini adalah penelitian tindakan kelas. Subyek penelitian ini adalah siswa kelas XI Teknik Audio Video (TAV 1) SMK Negeri 2 Kupang berjumlah 34 orang siswa tahun ajaran 2018/2019. Prosedur pelaksanaan tindakan meliputi: tahap perencanaan, tahap tindakan, tahappengamatan, tahap refleksi. Hasil dari penelitian diperoleh peningkatan hasil belajar dibandingkan sebelum penerapan strategi pembelajaran langsung menggunakan prndekatan bertanya, yaitu SIKLUS I=52,94% danSIKLUS II=97,06%. Sehingga dapat disimpulkan dengan penerapan strategi pembelajaran langsung dengan pendekatan bertanya dapat meningkatkan hasil belajar siswa pada materi modulasi
Real-space mean-field theory of a spin-1 Bose gas in synthetic dimensions
The internal degrees of freedom provided by ultracold atoms give a route for realizing higher dimensional physics in systems with limited spatial dimensions. Non-spatial degrees of freedom in these systems are dubbed synthetic dimensions . This connection is useful from an experimental standpoint but complicated by the fact that interactions alter the condensate ground state. Here we use the Gross-Pitaevskii equation to study ground state properties of a spin-1 Bose gas under the combined influence of an optical lattice, spin-orbit coupling, and interactions at the mean field level. The associated phases depend on the sign of the spin-dependent interaction parameter and the strength of the optical lattice potential. We find charge and spin density wave phases which are directly related to helical spin order in real space and affect the behavior of edge currents in the synthetic dimension. We determine the resulting phase diagram as a function of the spin-orbit coupling and spin-dependent interaction strength, considering both attractive (ferromagnetic) and repulsive (polar) spin-dependent interactions. Our results are applicable to current and future experiments, specifically with 87Rb, 7Li, 41K, and 23Na
Prevalence of Health Problems, Professional and Financial Satisfaction among Doctors Working Across Vadodara City: A Cross-sectional Study
Background: The present study was conducted to know the distribution of various health problems among doctors and to assess professional and financial satisfaction levels among doctors. Methods: A Google Form questionnaire-based cross-sectional study was conducted among 122 doctors in Vadodara selected purposively after taking consent. Google form was circulated by email and WhatsApp groups. The form consisted of questions related to demographic details, health problems, financial and job satisfaction. All the responses were recorded and analyzed in MS Excel 2019. Results: Among the 122 doctors, 89 (72.95%) were male and 33 (27.04%) were female and 101 (82.78%) doctors were taking treatment for some ailment. Around 86.9% of doctors regularly opt for a health check-up. Among the health problems reported by doctors, the most common were musculoskeletal ailments (72.13%) followed by hypertension (28.9%), diabetes (17.2), cardiac (12.3%), endocrinal (10.65%), eye (9.01), mental (6.55) problems. Approximately 37.70% of doctors answered that health problems temporarily affect their work; 5.73% of doctors felt the need to modify their work pattern. About 91.80% of doctors were satisfied by their profession, while 108 (88.52%) doctors were financially satisfied with their work. Conclusion: More than half of the professionals complained of musculoskeletal problems. The majority of health care professionals were professionally and financially satisfied
Anomalous Spin segregation in a weakly interacting two-component Fermi gas
We explain the spin segregation seen at Duke in a two-component gas of 6Li
[Du, Luo, Clancy and Thomas, Phys. Rev. Lett. 101,150401 (2008)] as a
mean-field effect describable via a collisionless Boltzmann equation. As seen
in experiments, we find that slight differences in the trapping potentials in
the two spin states drive small spin currents. Hartree-Fock type interactions
convert these currents into a redistribution of populations in energy space,
and consequently a long lived spin texture develops. We explore the interaction
strength dependence of these dynamics, finding close agreement with experiment.Comment: 4 pages, 3 figures, published version. Text modified to include
qualitative discussion of spin-segregation effect; 1 figure adde
Flow Monitoring in Wireless Mesh Networks
The original publication is available at www.springerlink.comInternational audienceWe present a dynamic and self-organized flow monitoring framework in Wireless Mesh Networks. An algorithmic mechanism that allows for an autonomic organization of the probes is investigated, with the goal of monitoring all the flows in the backbone of the mesh network accurately and robustly, while minimizing the overhead introduced by the monitoring architecture. The architecture of the system is presented, the probe organization protocol is explained and the performance of the monitoring framework is evaluated by simulation
On Observability and Monitoring of Distributed Systems: An Industry Interview Study
Business success of companies heavily depends on the availability and
performance of their client applications. Due to modern development paradigms
such as DevOps and microservice architectural styles, applications are
decoupled into services with complex interactions and dependencies. Although
these paradigms enable individual development cycles with reduced delivery
times, they cause several challenges to manage the services in distributed
systems. One major challenge is to observe and monitor such distributed
systems. This paper provides a qualitative study to understand the challenges
and good practices in the field of observability and monitoring of distributed
systems. In 28 semi-structured interviews with software professionals we
discovered increasing complexity and dynamics in that field. Especially
observability becomes an essential prerequisite to ensure stable services and
further development of client applications. However, the participants mentioned
a discrepancy in the awareness regarding the importance of the topic, both from
the management as well as from the developer perspective. Besides technical
challenges, we identified a strong need for an organizational concept including
strategy, roles and responsibilities. Our results support practitioners in
developing and implementing systematic observability and monitoring for
distributed systems
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