Website Penerimaan Peserta Didik Baru (PPDB) memberikan kemudahan bagi orang tua dan calon peserta didik baru dalam mengetahui informasi mengenai pelaksanaan seleksi penerimaan peserta didik baru, melakukan pendaftaran serta melakukan pemantauan hasil seleksi karena dapat dengan mudah diakses melalui gadget atau perangkat lain yang terkoneksi dengan internet. Permasalahan yang diangkat dalam penelitian ini adalah apakah kualitas dari website PPDB berpengaruh terhadap kepuasan pengguna pada SMKN 57 Jakarta. Penelitian ini berfokus pada kepuasan pengguna website PPDB menggunakan metode webqual yang terdiri dari 3 variabel yaitu kualitas kegunaan (usability), kualitas informasi (information quality), dan kualitas interaksi (interaction quality). Data yang digunakan dalah data primer, yaitu dengan menyebar kuesioner menggunakan skala likert dengan 20 pernyataan kepada 95 responden. Data yang diperoleh dan diolah menggunakan teknik analisis regresi linier berganda dengan menggunakan software SPSS 16. Berdasarkan variabel webqual, hasil analisis menyatakan kualitas kegunaan tidak berpengaruh terhadap kepuasan pengguna, sedangkan kualitas informasi dan kualitas interaksi berpengaruh terhadap kepuasan pengguna.
Spin-spin relaxation time or T2 is an important parameter in Magnetic Resonance Imaging (MRI) which provides information on molecular structure inside tissues, properties of human tissues and metabolites inside human body. It also contributes to clinical study by providing more information on pathological properties and delineation between healthy and malignant tissues in brain pathologies and identification of tissue abnormalities. In this study, T2 measurement was performed by acquiring T2 images of agarose hydrogel. T2-weighted imaging sequence was used with variation of agarose concentration, echo-time and repetition time. The signal intensities of samples were acquired and fitted to echo-time to obtain T2-value. In addition, contrast agent of CuSO4 was mixed with agarose solution and the similar T2 measurement was performed with variation concentration of agarose and CuSO4. Although some limitations were found during T2 measurement due to acquisition and instrumental setting, T2 quantification could provide more information about properties inside samples. The quantification could also be used for measurement of the effectiveness of contrast agent for increasing image contrast in MRI scanning.
Magnetic Resonance Imaging (MRI) is one of the reliable instruments in medical physics for diagnostic and treatment monitoring. In MRI scanning, data were acquired using several techniques depending on the parameters being measured. Several quantitative MRI methods were conducted to obtain values of some parameters in MRI, such as spin-spin relaxation time or T2. T2-value was generally obtained using spin-echo sequence and the recent development used multiple spin-echo sequence to significantly reduce acquisition time. The quantification of T2 is achieved by exponential fitting of echo-time with signal intensity. Although the quantification is quite straightforward, some distortion and errors were found during quantification process due to several factors. In this study T2 quantification of agar with various concentrations was conducted and the study was focused on the processing method for T2 quantification. The fitting methods based on mono-exponential and bi-exponential models would be applied and the results would be compared to find the best method for quantitative T2 MRI of gel phantom. The method would also be applied in agar phantom with addition of CuSO4 contrast agent to observe the effect of contrast agent on T2-value.
Penelitian ini ingin mengetahui persepsi santri terhadap nilai edukasi pemilahan sampah organik dan non organik yang dilaksanakan santri di Pondok Pesantren Nurul Jadid. Hal ini penting untuk dilakukan mengingat masih banyaknya santri yang belum memahami secara hakiki antara sampah organik dan non organik. Adapun jenis penelitian yang digunakan dalam penelitian ini ialah penelitian kualitatif dengan pendekatan deskriptif, di mana data yang dikumpulkan berupa kata dan gambar. Objek penelitian ini berasal dari santri di Pondok Pesantren Nurul Jadid, dengan teknik pengumpulan data melalui observasi, wawancara, pengamatan. Hasil dari penelitian ini menunjukkan bahwa para santri melakukan pemilahan sampah terlebih dahulu sebelum diangkut oleh petugas TPS berdasar jenis sampah non organik dan organik. Sampah organik yang berasal dari dari rumput-rumput, sisa-sisa makanan atau sesuatu yang sifatnya mudah membusuk dan terurai dilainkan dalam kantong terpisah dengan sampah yang dihasilkan dari proses teknologi yang susah diurai seperti botol kemasan, atau kertas. Selain itu, perilaku dan sikap para santri telah mengalami perubahan yang disebabkan mereka telah memperoleh pengetahuan dan keterampilan baru di dalam menjaga lingkungan kebersihan mereka.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.