Examining the Impact of Course Modality and Course Content Presentation Modality on Undergraduate Grade Outcomes and Course Evaluations

This study was conducted with students previously enrolled in an introduction to educational psychology course during the fall 2019 “F2F”, fall 2020 “online”, and fall 2021 “mixed” semesters, (N =515). The primary goal of this study was to examine how course modality, online and F2F, impacts certain course variables. Specifically, research questions examine how course modality impacts overall course performance, exam performance, homework completion, homework timeliness, and student ratings. Overall course grade, exam grades, and homework completion information were downloaded from Canvas and students identifying information were removed. De-identified student evaluation data were shared with the investigator. A Kruskal-Wallis H test was used to examine the effects of modality (F2F, Online) on overall course performance, exam performance, assignment submissions, and adherence to deadlines. A Mann-U Whitney Test was used to examine the effects of modality on student ratings. There was no significant difference in course performance across modalities. However, there were significant differences in exam performance, homework completion, and timeliness in which the F2F semester had significantly better performance than the online and mixed semesters. Student ratings were significantly higher for the F2F semester on measures of classroom environment and structure. Additionally, those in the online semester spent significantly more time on the course than those in F2F semester. Implication for findings, limitations, and directions for future research are discussed

Pengawasan Pupuk Bersubsidi pada Tanaman Pangan oleh Komisi Pengawasan Pupuk dan Pestisida (Kp3) di Kecamatan Bunga Raya Kabupaten Siak

In an effort to implement the subsidized fertilizer program, the Government of Siak Siak issued the decree No. 12 of 2014 About Allocation and top rated retail price Subsidized Fertilizer for Agriculture Sector. Supervision of procurement and distribution of subsidized fertilizer aims to curb the kiosk retailer for the implementation of procurement and distribution does not cause harm and nuisance to farmers subsidized fertilizer users. From observations of researchers in the field largely subsidized fertilizer retailers do not abide by the rules that have been set by the government Siak. The purpose of this study was to determine how the supervision of subsidized fertilizer by the Fertilizer and Pesticide Control Commission Siak and to determine the factors that affect the supervision of subsidized fertilizer in District Bunga Raya.This research was conducted in the District Bunga Raya, using qualitative descriptive method, with the technique of collecting data through observation and interviews. This research was conducted by using the theory according to which Manullang Setting Standards, Conduct Assessment and Corrective Action Hold.Results of this study concluded that the surveillance conducted by the Fertilizer and Pesticide Control Commission Siak against the procurement and provision of subsidized fertilizer at the retail level is not maximized. This is proven by the many kiosk retailers who do not comply with the rules that have been defined in the District Bunga Raya Siak. Factors affecting the supervision consists of internal factors, namely human resources, cost/funding, and infrastructure. External factors derived from subsidized fertilizer retailers who commit violations against predefined rules.Keywords : Control, Subsidized Fertilizer, Procurement and distributio

A Proposed Model of Metamaterial Complementary Split- Ring Resonator to Reduce Microstrip Array Antenna Dimension

This study aims to develop a model of complementary split-ring resonator (CSRR) metamaterial structure to reduce microstrip array antenna dimensions. The smaller antenna dimensions are needed in communication system applications such as cellular devices and IoT sensors. It is necessary to miniaturize the antenna size to provide compatible antenna size with the development of wireless communication systems. This study was developed by designing the CSRR model on the microstrip array antenna at 2300 MHz LTE frequency band and using FR-4 Epoxy substrate material. The simulation and measurement results show the microstrip array antenna with the addition of CSRR structure that has 31% smaller dimension compared to without using CSRR structure. The radiation performances with the addition of CSRR structure also shows a significant improvement of bandwidth and return loss with a slight decrease in gain. This study proves that the addition of CSRR structure is one of the solution to miniaturization of microstrip antenna.     Keywords: CSRR metamaterial, antenna dimension, radiation performance

Using Word Grid Games to Increase the Vocabulary Achievement of the Second Grade Students of SMP N 8 Pekanbaru

Vocabulary plays an important role in learning a foreignlanguage. It is an element that links the four language skills: speaking,listening, reading and writing. In order to communicate well in aforeign language, students need to have sufficient vocabulary. Afterthat, they need to understand the structure, function, etc. Toenrichtheirvocabulary.There are many useful approaches can be used. Oneof them is using games

Seismic vulnerability assessment: Methodological elements and applications to the case of Romania

This paper is intended to present some studies undertaken in order to develop a seismic vulnerability estimation system to fit the needs of development of earthquake scenarios and of development of an integrated disaster risk management system for Romania. Methodological aspects are dealt with, in connection with the criteria of categorization of buildings, with the definition of parameters used for characterizing vulnerability, with the setting up of an inventory of buildings and with the calibration of parameters characterizing vulnerability. Action was initiated along the coordinates referred to in connection with the methodological aspects mentioned above. The approach was made, as far as possible, specific to the conditions of Romania. Some data on results obtained to date are presented.seismic vulnerability, vulnerability estimation, earthquake scenarios, categorization of buildings, inventory of buildings, expected earthquake impact

Pengaruh Belanja Pemerintah Daerah Bidang Pendidikan dan Kesehatan terhadap Indeks Pembangunan Manusia di Kabupaten Timor Tengah Selatan

This study aims is to examine the effect of local government spending on education and health to the Human Development Index (HDI) at Timor Tengah Selatan regency, both partially and simultaneously. The variables which used in this study are Regional Government Spending in Education (X1), Regional Government Spending in Health (X2) and Human Development Index (Y). The data used in this paper are quantitative from secondary sources, namely The Central Statistics Office and The Regional Financial and Asset Management Office, Timor Tengah Selatan regency. Data analysis using linear regression analysis using t test (partial) to test the hypotheses 1 and 2 and F test (simultaneous) to test the hypothesis 3. The T test results for the hypotheses 1 and 2 show significance values of 0,000 and 0.006, which means H1 and H2 are accepted. The F test results to test hypothesis 3 show a significance value of 0,000, which means H3 is accepted. The conclusion of the process that can be drawn is that government spending in the education and health sectors both partially and simultaneously has a positive effect to the Human Development Index at Timor Tengah Selatan Regency

Characterization of IM7/8552 Thin-Ply and Hybrid Thin-Ply Composites

Composite materials have increasingly been used for aerospace applications due to improved performance and reduced weight compared to their metallic counterparts. Inclusion of thin-ply material, plies with cured thickness half or less than standard composites, have potential to improve performance and reduce structural weight. Limited characterization of thin-ply IM7/8552 material in 30 and 70 grams per square meter fiber areal weights has been carried out using a series of selected American Society for Testing and Materials (ASTM) tests. Tests included unnotched tension, unnotched compression, v-notched rail shear, open-hole tension, and open-hole compression. Unidirectional, cross-ply, quasiisotropic and hybrid hard laminates were included in the study, and were compared to standard-ply laminates. Properties compared include fiber volume, laminate moduli, and failure strength, with failure modes also being examined. The thin-ply specimens exhibited similar or superior performance to standard ply laminates in many of the cases compared. Improvements in strength for laminates containing thin-ply material were seen for unidirectional laminates under unnotched tension, quasi-isotropic laminates under unnotched tension and compression, and hard laminates under open hole tension. Additional investigation is required to determine appropriate ply stacking rules for hybrids of thin and standard plies to avoid undesirable failure modes such as axial splitting. However, the observed performance improvements demonstrated by the conducted ASTM tests of hybrid thin-ply hard laminates could have benefits for improved structural weight in aircraft

Design and Implementation of Low-cost Wideband Vivaldi Antenna for Ground Penetrating Radar

Vivaldi antenna is one of the many types of antenna implemented on ground penetrating radar (GPR). Its characteristics are pointed radiation and wide bandwidth. This study aims to design an antenna used in GPR for non-destructive test application on a transportation to check the roadway material. This Vivaldi antenna has a wide bandwidth, 1 GHz approximately, with the frequency range between 1 GHz and 2 GHz. This Vivaldi antenna design is obtained by changing few parameters of common Vivaldi antenna to fulfill its design characteristics: low cost and wide bandwidth. The antenna size is 350mm x 300mm. The simulation result shows that there is a return loss below –10 dB for 1–2 GHz frequency range, and the lowest return loss at that frequency range is around –35 dB on 1.4 GHz. This article also explains about the effect of tapered slot size changes to return loss value and frequency. When the antenna width is enlarged, the value of return loss is gets smaller in the lower frequency. Therefore, antenna bandwidth gets wider. The same happens when tapered slot size gets bigger value, the antenna working frequency switches into the lower frequency. It can be concluded that antenna bandwidth widening can be done by enlarging tapered length value and reducing tapered rate value.     Keywords: Vivaldi antenna, ground penetrating radar, optimization, low cost antenna, wide bandwidt

Pengaruh Media Animasi terhadap Hasil Belajar Siswa Kelas XI pada Materi Larutan Penyangga di SMA Negeri 1 Tilamuta

Penelitian ini bertujuan untuk mengetahui pengaruh media animasi terhadap hasil belajar siswa kelas XI pada materi larutan penyangga di SMA Negeri 1 Tilamuta. Desain penelitian yang digunakan yaitu posttest only control design. Populasi dalam penelitian ini yaitu seluruh siswa kelas XI IPA di SMA Negeri 1 Tilamuta, dan sampel penelitian yaitu kelas XI IPA 1 sebagai kelas kontrol, dan kelas XI IPA 2 sebagai kelas eksperimen. Jenis instrumen yang digunakan adalah tes uraian yang berjumlah 9 nomor soal. Teknik analisis yang digunakan meliputi uji normalitas, uji homogenitas dan uji –t. Hasil penelitian yang didapatkan, data berdistribusi normal yaitu nilai Lhitung < Ltabel, data memiliki varians yang homogen yaitu Fhitung < Ftabel, dan uji hipotesis yang didapatkan yaitu nilai thitung > ttabel (1,71 > 1,68). Uji hipotesis menunjukkan bahwa terdapat pengaruh media animasi terhadap hasil belajar siswa, meskipun pengaruhnya tidak terlalu signifikan. Hal ini disebabkan karena media animasi masih memiliki beberapa kekurangan. Olehnya itu, diperlukan variasi penggunaan metode pembelajaran yang baik untuk menutupi kekurangan dari penggunaan media animasi sebagai media pembelajaran