592 research outputs found
Studi Komparasi Penggunaan Laboratorium Virtual Dan Laboratorium Riil Dalam Pembelajaran Student Teams Achievement Division (Stad) Terhadap Prestasi Belajar Ditinjau Dari Kreativitas Siswa
Penelitian ini bertujuan untuk mengetahui: Pengaruh penggunaan metode STAD menggunakan laboratorium virtual dan laboratorium riil terhadap prestasi belajar siswa pada materi pokok sistem koloid, Pengaruh kreativitas terhadap prestasi belajar pada materi pokok sistem koloid, Interaksi antara pembelajaran STAD menggunakan laboratorium virtual dan riil dengan kreativitas siswa terhadap prestasi belajar siswa pada materi pokok sistem koloid. Penelitian ini menggunakan metode eksperimen dengan rancangan penelitian desain faktorial 2x2. Pengambilan sampel menggunakan teknik cluster random sampling. Sampel penelitian yaitu kelas XI IPA1 dan XI IPA2. Pengumpulan data dilakukan menggunakan teknik tes dan nontes.Teknik tes untuk prestasi kognitif, non tes untuk kreativitas, dan prestasi afektif. Teknik analisis data yang digunakan adalah analisis variansi dua jalan dengan sel tak sama. Berdasarkan hasil penelitian yang diperoleh ada pengaruh metode pembelajaran STAD menggunakan laboratorium virtual dan STAD menggunakan laboratorium riil terhadap prestasi belajar siswa pada aspek kognitif siswa dan tidak terdapat pengaruh metode pembelajaran metode STAD menggunakan laboratorium virtual dan STAD menggunakan laboraorium riil pada prestasi afektif siswa, Tidak terdapat pengaruh kreativitas terhadap prestasi belajar siswa baik aspek kognitif maupun afektif siswa, Tidak terdapat interaksi antara metode pembelajaran STAD menggunakan laboratorium virtual dengan kreativitas siswa tinggi dan rendah terhadap prestasi belajar siswa baik aspek kognitif maupun afektif siswa
Sistem Monitoring Level Dan Tetesan Cairan Intravena Pada Pasien Rawat Inap Menggunakan Komunikasi Nrf24l01
Resiko keterlambatan pergantian cairan intravena serta pemberian cairan intravena yang tidak sesuai dengan peresepan dapat menimbulkan masalah lain pada pasien. Alat ini dirancang dengan tujuan untuk membantu pemberian informasi kepada perawat jika cairan intravena akan habis maupun laju tetesan dengan peresepan dokter. Dengan demikian akan mengurangi resiko akibat permasalahan tersebut serta dan memberikan kemudahan bagi perawat dalam memonitoring pemberian cairan intravena yang tepat bagi pasien. Metode yang digunakan adalah metode observasi dan rekayasa. Load Cell berfungsi untuk mengukur volume cairan intravena, sedangkan Photodiode berfungsi untuk mengukur laju tetesan cairan intravena. Hasil pembacaan yang telah diolah Arduino akan dikirimkan ke ruang perawat menggunakan NRF24L01. Saat volume mecapai batas minimum penggantian maka buzzer di ruang perawat akan berbunyi, selain itu pada LCD akan ditampilkan volume dan laju tetesan cairan intravena.Dari hasil pengujian Load Cell saat cairan intravena maksimum ditunjukan tegangan 4,8 volt, sedangkan saat minimum ditunjukkan tegangan 0.5 volt. Sedangkan pengujian Photodiode saat terdapat tetesan ditunjukan logika 1, sedangkan jika tidak ada tetesan ditunjukan logika 0. Semua port arduino dapat berfungsi dengan baik. Dari pengujian NRF24L01, pengiriman sinyal terjadi saat Load Cell memperoleh data 0.5 volt. Dari hasil pengujian alarm dan lcd dapat berfungsi dengan baik
Do Multinational enterprises push up wages of domestic firms in the Italian Manufacturing sector?
This paper analyzes the effects of foreign direct investment on wages paid by domestic firms in the Italian manufacturing sector over the period 2002–2007. In particular, the authors investigate the im-pact of multinational enterprises on wages paid by local firms which operate in the same industry, known and horizontal wage spillovers, or have linkages with multinational enterprises in both downstream and upstream industries, known as vertical wage spillovers. By using a large panel dataset, consisting of 551,000 observations, the authors find evidence of wage spillovers only at inter-industry level and, more specifically, for those firms who supply their goods to multinational enterprises, described as backward wage spillovers. Moreover, findings suggest that the wage spillover effect is strongly affected by the technological gap between local and foreign firms: only workers employed in domestic firms with a low-medium technological absorptive capacity seem to benefit from the presence of multinational enterprises in terms of higher wages
SLC26A11 (KBAT) in Purkinje Cells Is Critical for Inhibitory Transmission and Contributes to Locomotor Coordination
Chloride homeostasis determines the impact of inhibitory synaptic transmission and thereby mediates the excitability of neurons. Even though cerebellar Purkinje cells (PCs) receive a pronounced inhibitory GABAergic input from stellate and basket cells, the role of chloride homeostasis in these neurons is largely unknown. Here we studied at both the cellular and systems physiological level the function of a recently discovered chloride channel, SLC26A11 or kidney brain anion transporter (KBAT), which is prominently expressed in PCs. Using perforated patch clamp recordings of PCs, we found that a lack of KBAT channel in PC-specific KBAT KO mice (L7-KBAT KOs) induces a negative shift in the reversal potential of chloride as reflected in the GABAA-receptor-evoked currents, indicating a decrease in intracellular chloride concentration. Surprisingly, both in vitro and in vivo PCs in L7-KBAT KOs showed a significantly increased action potential firing frequency of simple spikes, which correlated with impaired motor performance on the Erasmus Ladder. Our findings support an important role for SLC26A11 in moderating chloride homeostasis and neuronal activity in the cerebellum
RF assisted switching in magnetic Josephson junctions
We test the effect of an external RF field on the switching processes of magnetic Josephson junctions (MJJs) suitable for the realization of fast, scalable cryogenic memories compatible with Single Flux Quantum logic. We show that the combined application of microwaves and magnetic field pulses can improve the performances of the device, increasing the separation between the critical current levels corresponding to logical "0" and "1." The enhancement of the current level separation can be as high as 80% using an optimal set of parameters. We demonstrate that external RF fields can be used as an additional tool to manipulate the memory states, and we expect that this approach may lead to the development of new methods of selecting MJJs and manipulating their states in memory arrays for various applications
SLC26A11 (KBAT) in Purkinje Cells Is Critical for Inhibitory Transmission and Contributes to Locomotor Coordination
Chloride homeostasis determines the impact of inhibitory synaptic transmission and thereby mediates the excitability of neurons. Even though cerebellar Purkinje cells (PCs) receive a pronounced inhibitory GABAergic input from stellate and basket cells, the role of chloride homeostasis in these neurons is largely unknown. Here we studied at both the cellular and systems physiological level the function of a recently discovered chloride channel, SLC26A11 or kidney brain anion transporter (KBAT), which is prominently expressed in PCs. Using perforated patch clamp recordings of PCs, we found that a lack of KBAT channel in PC-specific KBAT KO mice (L7-KBAT KOs) induces a negative shift in the reversal potential of chloride as reflected in the GABAA-receptor- evoked currents, indicating a decrease in intracellular chloride concentration. Surprisingly, both in vitro and in vivo PCs in L7-KBAT KOs showed a significantly increased action potential firing frequency of simple spikes, which correlated with impaired motor performance on the Erasmus Ladder. Our findings support an important role for SLC26A11 in moderating chloride homeostasis and neuronal activity in the cerebellum
The basic immunology of asthma
In many asthmatics, chronic airway inflammation is driven by IL-4-, IL-5-, and IL-13-producing Th2 cells or ILC2s. Type 2 cytokines promote hallmark features of the disease such as eosinophilia, mucus hypersecretion, bronchial hyperresponsiveness (BHR), IgE production, and susceptibility to exacerbations. However, only half the asthmatics have this “type 2-high” signature, and “type 2-low” asthma is more associated with obesity, presence of neutrophils, and unresponsiveness to corticosteroids, the mainstay asthma therapy. Here, we review the underlying immunological basis of various asthma endotypes by discussing results obtained from animal studies as well as results generated in clinical studies targeting specific immune pathways.</p
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