7,788 research outputs found
Adoption of Free Open Source Geographic Information System Solution for Health Sector in Zanzibar Tanzania
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The study aims at developing in-depth understanding on how Open Source Geographic Information System technology is used to provide solutions for data visualization in the health sector of Zanzibar, Tanzania. The study focuses on implementing the health visualization solutions for the purpose of bridging the gap during the transition period from proprietary software to the Free Open-Source Software using Key Indicator Data System. The developed tool facilitates data integration between the two District Health Information Software versions and hence served as a gateway solution during the transition process. Implementation challenges that include outdated spatial data and the reluctance of the key users in coping with the new Geographical Information System technologies were also identified. Participatory action research and interviews were used in understanding the requirements for the new tool to facilitate the smooth system development for better health service delivery.\u
Penerapan Model Pembelajaran Kooperatif Dengan Pendekatan Penemuan Terbimbing Untuk Meningkatkan Keterampilan Proses Sains Siswa
Tujuan dari penelitian ini adalah: (1) untuk menentukan bagaimana pelaksanaan pembelajaran perangkat di aplications dari model pembelajaran kooperatif dengan pendekatan penemuan terbimbing, (2) untuk menilai kemampuan siswa dalam proses ilmiah dan konsep comprehensions mereka di aplications dari model pembelajaran kooperatif dengan pendekatan dipandu penemuan, (3) untuk mengetahui apakah melalui implementasi model pembelajaran kooperatif dengan pendekatan penemuan terbimbing dapat meningkatkan kemampuan siswa dalam proses sains. Penelitian ini dikategorikan sebagai desain eksperimen pra. Desain studi satu kelompok desain pretest-postest. Subjek dalam penelitian ini adalah kelas X SMA Negeri 3 Sinjai. Data diperoleh melalui bentuk penilaian keterampilan dalam proses ilmiah dan uji pemahaman konsepsi. Hasil penelitian menunjukkan bahwa berdasarkan perangkat observasi pada pelaksanaan perangkat pembelajaran, dapat dikatakan bahwa pelaksanaan perangkat pembelajaran telah berarti dari M = 1,77 yang menunjukkan bahwa semua aspek dan kriteria sepenuhnya dilaksanakan. Model pembelajaran kooperatif dengan pendekatan penemuan terbimbing dapat menghangatkan keterampilan siswa dalam proses sains, itu mencapai 42,89%. Dari analisis data diperoleh bahwa nilai rata-rata dari memahami konsep siswa mencapai skor 71 termasuk dalam kategori tinggi dengan tingkat belajar siswa ketuntasan mencapai 78,26% (KKM = 65).Kata Kunci : Model Pembelajaran Kooperatif, Penemuan Terbimbing, Keterampilan Proses Sains.The purpose of this study were : (1) to determine how the implementation of learning device in the aplications of the cooperative learning model with guided discovery approach, (2) to assess students' skills in scientific process and their comprehensions concept in the aplications of the cooperative learning model with guided discovery approach, (3) to know whether through the implementations of cooperative learning model with guided discovery approach can increase students' skills in science process. This study categorized as pre experimental design. The design of the study one group pretest-postest design. The subject in this study is the class X of SMA Negeri 3 Sinjai. The data were obtained through the assessment form of skills in science process and comprehension concep test. The result showed that the based on the data observation device on the implementation of learning device, it can be argued that the implementation of learning device has mean of M = 1,77 which showed that all the aspects and criteria was fully implemented. Cooperative learning model with guided discovery approach can increas students' skill in science process, it reach 42,89%. From the analysis of data obtained that the mean score of comprehending the concept of student achieve a score of 71 is included in the high category by the level of students learning exhaustiveness achieve 78,26 % (KKM = 65)
Developing and validating an instrument for measuring mobile government adoption in Saudi Arabia
Many governments recently started to change the ways of providing their services by allowing their citizens to access services from anywhere without the need of visiting the location of the service provider. Mobile government (M-government) is one of the techniques that fulfill that goal. It has been adopted by many governments. M-government can be defined as an implementation of Electronic Government (E-Government) by using mobile technology with the aim of improving service delivery to citizens, businesses and all government agencies. There have been several research projects developing models to understand the behavior of individuals towards the adoption of m-government. This paper proposes a model for adoption of m-government services in Saudi Arabia by extending Technology Acceptance Model (TAM) by introducing external factors. This paper also reports on the development of a survey instrument designed to measure user perception of mobile government acceptance. A survey instrument has been developed by using existing scales from prior instruments and a pilot study has been conducted by distributing the survey to 33 participants. As a result, a survey instrument has been refined to retain 43 items. The results also showed that the reliabilities of all the scales in the survey instrument are above the levels acceptable in current academic research, thus the instruments developed by us are capable of analyzing the factors in M-government adoption
Reconnection of superfluid vortex bundles
Using the vortex filament model and the Gross Pitaevskii nonlinear
Schroedinger equation, we show that bundles of quantised vortex lines in helium
II are structurally robust and can reconnect with each other maintaining their
identity. We discuss vortex stretching in superfluid turbulence and show that,
during the bundle reconnection process, Kelvin waves of large amplitude are
generated, in agreement with the finding that helicity is produced by nearly
singular vortex interactions in classical Euler flows.Comment: 10 pages, 7 figure
Pengaruh Biaya Transaksi terhadap Keuntungan USAhatani Kedelai di Kabupaten Lamongan, Jawa Timur
Transaction cost is one of the characteristics of imperfect market. Transaction cost on soybean farming will affect the level of profit soybean farming. The purpose of this research were to analyze the transaction cost structure and the effect of transaction cost on the profitability of soybean farming. Research method used Transaction Cost Analysis and multiple linear regression. This research was held in Lamongan, Jawa Timur and interviewed 120 soybean farmers to derive the data. The results showed that the transaction cost component on soybean farming consists of (1) information cost; (2) negotiation cost; (3) coordination cost; (4) enforcement cost; (5) monitoring cost and (6) risk cost. The amount of the transaction cost that are formed on soybean farming was Rp144.120,86. Negotiation cost was the highest cost of transaction cost component that was 60,30%, followed by information cost 14,07%, coordination cost 12,22%, enforcement cost 8,03%, monitoring cost 4,23% and risk cost 1,15%. Transacion cost have a negative and significant effect on the profitability of soybean farming
User acceptance of m-government services in Saudi Arabia : an SEM approach
In spite of many benefits normally attributed to the use of e-government and its more recent variety mobile- (m-) government, there are still many obstacles reported facing the adoption of both, especially in developing countries. We explore the situation in one of them, namely Saudi Arabia, aiming to study factors affecting citizens' adoption of m-government. We tailor a new conceptual model for m-government adoption by citizens based on Technology Acceptance Model (TAM) and specifically consider important factors such as perceived service quality, perceived trust, user satisfaction and perceived mobility. We also tailor measuring those factors to account for the specifics of the new mobile aspect in the existing theories and carry out a large scale survey (695 analysed respondents from King Saud University and Immam Muhammed Bin Saud University) followed by quantitative analysis involving structural equation modelling. Our results support most of the anticipated relationships between the factors and adoption, and will help policy makers and developers of e-government systems to increase citizen's adoption
Temperature stability of intersubband transitions in AlN/GaN quantum wells
Temperature dependence of intersubband transitions in AlN/GaN multiple
quantum wells grown with molecular beam epitaxy is investigated both by
absorption studies at different temperatures and modeling of conduction-band
electrons. For the absorption study, the sample is heated in increments up to
C. The self-consistent Schr\"odinger-Poisson modeling includes
temperature effects of the band-gap and the influence of thermal expansion on
the piezoelectric field. We find that the intersubband absorption energy
decreases only by meV at C relative to its room temperature
value
Microbial dynamics during various activities in residential areas of Lahore, Pakistan
Bioaerosols are ubiquitous in the atmosphere with their levels affected by a variety of environmental factors as well as
type of activities being carried out at any specific time. The present study investigated how indoor activities influence
bioaerosol concentrations in five residential houses of Lahore. Agar coated petri plates were exposed face upwards for
twenty minutes in kitchens and living rooms during activity and non-activity periods. The temperature and relative
humidity levels were noted as well. The bioaerosol concentrations in kitchens during the activity time ranged between
1022 to 4481 cfu/m3 and in living rooms from 1179 to 3183 cfu/m3 . Lower values were observed during non-activity
periods. A paired-t test revealed a significant difference in bacterial loads during activity and non-activity times in both
micro-environments (p = 0.038 in kitchen and p = 0.021 in living room). The predominant species identified were
Micrococcus spp., Staphylococcus spp., and Bacillus spp. which are a common constituent of the indoor environment
and are known to be opportunistic pathogens as well
First-in-man evaluation of 124I-PGN650: A PET tracer for detecting phosphatidylserine as a biomarker of the solid tumor microenvironment
Purpose: PGN650 is a F(ab′) 2 antibody fragment that targets phosphatidylserine (PS), a marker normally absent that becomes exposed on tumor cells and tumor vasculature in response to oxidative stress and increases in response to therapy. PGN650 was labeled with 124 I to create a positron emission tomography (PET) agent as an in vivo biomarker for tumor microenvironment and response to therapy. In this phase 0 study, we evaluated the pharmacokinetics, safety, radiation dosimetry, and tumor targeting of this tracer in a cohort of patients with cancer. Methods: Eleven patients with known solid tumors received approximately 140 MBq (3.8 mCi) 124 I-PGN650 intravenously and underwent positron emission tomography–computed tomography (PET/CT) approximately 1 hour, 3 hours, and either 24 hours or 48 hours later to establish tracer kinetics for the purpose of calculating radiation dosimetry (from integration of the organ time-activity curves and OLINDA/EXM using the adult male and female models). Results: Known tumor foci demonstrated mildly increased uptake, with the highest activity at the latest imaging time. There were no unexpected adverse events. The liver was the organ receiving the highest radiation dose (0.77 mGy/MBq); the effective dose was 0.41 mSv/MBq. Conclusion: Although 124 I-PGN650 is safe for human PET imaging, the tumor targeting with this agent in patients was less than previously observed in animal studies
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