Digital Commons Network^™

Community Engagement In Teaching-Learning: A Pathway To Quality Education, Geraldine Villaluz, Mariter Malonjao, Carina Trinidad, Marlon Bojos

ASEAN Journal of Community Engagement

In response to the demands of a changing educational system in the Philippines,this study sought to improve learning performance and faculty developmentthrough professional learning community engagement using a research lessonframework, a Japanese approach to professional development. The purpose is toidentify how effective research lessons and community engagement can be inimproving the quality of teacher and student performance. Using a narrativeinquiry approach within a research lesson framework with four classes of SocialDimensions of Education and pre-service teachers, the study results netted arich exchange of ideas, engaged student and teacher performance, anddeconstructed the privacy of lesson planning.

The Impact Of Micro-Scale Solar Power Supply For Rural Households, In Central Kalimantan Province, Indonesia, Lilis Heri Ms Cicih, Endih Herawandih

ASEAN Journal of Community Engagement

Electricity is one of the basic necessity for people. The provision of micro-scale solar electricity is needed to increase public access to electricity that can improve capacity of household members. The aim of community engagement program is to increase farmers' household access to electricity are carried out to provide financial, economic and socio-cultural benefits. Based on the theory, the community engagement tailored to the population interest, and community-based organizations must be involved in any engagement initiative. There are six major components of a community engagement are collaboration, accessibility, accountability, education, principles, and organizational capacity. This community service through participatory methods …

Awareness Of Cybersecurity Threats In The Port Of The Freetown, Sierra Leone, Malik Abdul Karim Sesay

World Maritime University Dissertations

No abstract provided.

Front Dielectric And Back Plasmonic Wire Grating For Efficient Light Trapping In Perovskite Solar Cells, Omar A. M. Abdelraouf, Nageh Khalaf Allam

Faculty Journal Articles

Thin film perovskite solar cells (PSCs) based on (CH3NH3PbI3) have been emerged as good alternatives to conventional silicon solar cells due to their low cost, low fabrication temperature, high carrier collection efficiency, and high-power conversion efficiency (PCE). However, the small thickness of thin film solar cells limits light absorption compared to thick solar cells. In this work, we proposed a theoretical design for enhancing light absorption to achieve maximum theoretical photocurrent using front dielectric and back plasmonic wire grating. Using finite element method (FEM) three-dimensional optical model, the optimum size and periodicity of the studied wire grating nanostructures were identified. …

From Rusting To Solar Power Plants: A Successful Nano-Pattering Of Stainless Steel 316l For Visible Light-Induced Photoelectrocatalytic Water Splitting, Heba H. Farrag, Alaa A. Abbas, Nageh Khalaf Allam

Faculty Journal Articles

A novel propitious nanoporous anodized stainless steel 316L (NASS316L) photoanode was developed for water splitting. The anodization could successfully produce a uniform nanoporous (- 90 nm in pore diameter) array (- 2.0 μm thick) of NASS316L with a high pore density. Several techniques, including FESEM, EDX, XRD, XPS, ICP-OES, and UV-vis-NIR spectrophotometry, were employed to characterize the catalyst and to assess and interpret its activity toward water splitting. Surprisingly, the NASS316L retained almost the same composition of the bare stainless steel 316L, which recommended a symmetric dealloying mechanism during anodization. It also possessed a narrow band gap energy (1.77 eV) …

Kemampuan Pematematikaan Horizontal Siswa Sekolah Dasar Dalam Menyelesaikan Masalah Bilangan Bulat Positif, Wulida Arina Najwa, Susiswo Susiswo, Abdur Rahman As’Ari

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

One of the mathematisation processes in Realistic Mathematics Education is horizontal mathematisation. Using a qualitative approach, this research describes the horizontal mathematisation ability of grade 4 elementary school students in solving problem-solving questions on positive integers. The result of this research shows that there is a relationship between students' mathematical abilities and their horizontal mathematisation abilities. Students with moderate ability levels have moderate horizontal mathematisation abilities and students with high levels of ability have high horizontal mathematisation abilities.

Effects Of Selenized Dc Sputtered Precursor Stacking Orders On The Properties Of Cu2znsnse4 Absorber Layer For Thin Film Solar Cells, Hezekiah B Sawa, Margaret E Samiji, Nuru R Mlyuka

Tanzania Journal of Science

This study investigated the effects of selenized DC sputtered precursor stacking orders on the structural, electrical and optical properties of copper zinc tin selenide (CZTSe) absorber layer for thin film solar cells. The precursors were deposited sequentially on the soda lime glass substrate at room temperature by DC magnetron sputtering. The precursors were selenized by annealing in an atmosphere containing selenium pellets and nitrogen gas. The structural, morphological, optical and electrical properties were respectively characterized using X-Ray Diffractometer (XRD), atomic force microscopy (AFM), UV/VIS/NIR lambda 9/19 spectrophotometer, Hall Effect measurement system (HMS 3000) and a four point probe system. CZTSe …

Optimization Of Zinc To Tin Ratio In A Sol Gel Precursor Solution On The Growth And Properties Of Annealed Czts Thin Films, Justine John Tibaijuka, Margaret E Samiji, Nuru R Mlyuka

Tanzania Journal of Science

CZTS thin films were deposited by sol–gel spin coating method using precursor solutions prepared by dissolving copper acetate dihydrate, zinc acetate dihydrate, tin chloride and thiourea in methanol and monoethylamine then annealed in RTP furnace at 500 °C. Sol–gel precursor solutions were prepared with different Zn/Sn in a precursor solution and were annealed at different time intervals; and their effects on the optical and electrical properties of CZTS (Cu2ZnSnS4) films were investigated. The optical band-gap values were estimated to be between 1.30 and 1.88 eV while the absorption coefficients were in the range of 104 cm–1 in the visible region. …

Compositional And Thickness Effects On The Optical Properties Of Zinc–Doped Selenium–Antimony Thin Films, Austine A Mulama, Julius M Mwabora, Andrew O Oduor, Cosmas M Muiva

Tanzania Journal of Science

Chalcogenide system of antimony (Sb)-selenium (Se)-zinc (Zn) system is a promising semiconductor for phase change memory devices due to its thermal stability and low power consumption. The study investigated the effect of film thickness and zinc content on the optical properties of thermally evaporated Sb10Se90-xZnx (x = 0, 5, 10 & 15 at. %) thin films. It was found that transmittance (T~ 85-40%) and optical band gap energy (Eopt ~ 1.60 eV – 1.22 eV) decreased but absorption coefficient (α~0.840–2.031 104 cm–1) increased with increase in zinc content. Furthermore, as the film thickness increased from 53 ± 5 nm to …

Effects Of Thickness Variation In The Multilayer Thin Film On The Performance Of Eta Solar Cell, Robinson J Musembi

Tanzania Journal of Science

A highly structured eta solar cell of the type TiO2/In(OH)xSy/Pb(OH)xSy/PEDOT:PSS/Au with different layer thickness has been fabricated using various deposition techniques for each layer in the stack. The solar cell parameters, Uoc, FF and  have been extracted from current- voltage characteristics measurements. The buffer layer and the hole collector layer have been kept constant while the window and the absorber layer have been varied. The thickness of either of the two layers being varied has been observed to affect the performance of the solar cells. The difference in thickness has been attributed to affect the charge lifetime in the space …

Thermal Performance Of Selected Oils In Uganda For Indirect Solar Domestic Cooking Applications, Benard Tabu, Karidewa Nyeinga, Jimmy Chaciga, Denis Okello

Tanzania Journal of Science

This study experimentally evaluated the thermal performance of selected oils in Uganda for indirect solar domestic cooking applications. The oil samples used were refined sunflower oil, refined palm oil and thermia B. These oils are locally available in Uganda. Thermal stratification, energy and exergy analysis were performed for each oil to determine their suitability for Thermal Energy Storage (TES) using a thermosiphon principle. The results showed that thermal stratification of refined sunflower oil was higher as compared to refined palm oil and thermia B during the first one hour. The stored energy and exergy for refined sunflower oil was generally …

Effects Of Substrate Radial-Position Relative To The Sputter-Gun Axis On The Electrical, Optical And Structural Properties Of Zno Thin Films Deposited By Reactive Direct Current Magnetron Sputtering, John Paul Eneku, Tom Otiti, Julius Mwakondo Mwabora, David Horwat

Tanzania Journal of Science

ZnO thin films were deposited using reactive direct current (dc) magnetron sputtering on glass substrates placed at seven variable radial positions (-1, 0, 1, 2, 3, 4 and 5 cm)  relative to the sputter-gun (target) axis. A pure zinc target was used and sputtering carried out in argon and oxygen atmosphere with flow rates of 50 sccm and 6 sccm, respectively. XRD characterization showed that, all films crystallized homogeneously in the wurtzite phase with a strong (002) and a weak (004) orientations. Film crystallinity was very low at substrate positions located less than or equal to 1 cm from the …

Full Issue

Michigan Journal of Public Health

No abstract provided.

Editorial: Michigan Cancer Consortium Celebrates 20 Years, Lorena Disha Mph, Tom Rich Mph, Dana Zakalik Md

Michigan Journal of Public Health

No abstract provided.

Research News. Publications, 2018. Volume 2, University Of Mississippi. School Of Pharmacy, Soumyajit Majumdar

Publications (2015-)

Publications that appeared during the period July 1 through December 31, 2018

An Examination Of Cybersecurity Knowledge Transfer: Teaching, Research, And Website Security At U.S. Colleges And Universities, Aditya Gupta, James R. Wolf

Journal of Cybersecurity Education, Research and Practice

This work seeks to answer the question: Does faculty cybersecurity knowledge gained from teaching and research transfer to other IT units in the university? Specifically, do colleges and universities that excel in cybersecurity teaching and research have more secure websites? This work explores a unique setting where the knowledge of the source and recipient are both directly related and observable without outside intervention. Our study employed data from 591 U.S. colleges and universities, the National Centers of Academic Excellence (CAE) program, accepted paper data from the ACM Conference on Computer and Communications Security (CCS) and the IEEE Symposium on Security …

Penerapan Strategi Bermain Melalui Media Busy Book Untuk Meningkatkan Fisik Motorik Halus Anak Usia Dini, Islamiah Arta Utomo, M. Ramli, Furaidah Furaidah

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This research was aimed to improve the soft physical motoric skill of kids in coordinating eyes and hands movements through the implementation of playing strategy by using busy book media. The subjects of this research were 16 kids at group A Nafilah Kindegarten Malang City. The results of the observation concludes that the soft physical motoric skill of kids experiences improvement from classical average in the amount of 50% at the first cycle then it improves to be 100% at the second cycle. This improvement can be achieved through the implementation of playing strategy by using busy book media conducted …

Keefektifan Modul Berbasis Guided Inquiry Dilengkapi Komik Terhadap Kemampuan Berargumentasi Ditinjau Dari Minat Baca Siswa, Puji Hendarto, Maridi Maridi, Baskoro Adi Prayitno

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This research aims to examine the effectiveness of Guided Inquiry-Based Modules Supplied with Comics on The Subject Matter of Human Digestive System to Improve the Argumentation Skills of the students with high and low reading motivation. The used method was a quasi-experiment with 2x2 factorial design. The researcher used an intact group technique to determine the sample. The sample was divided into two groups, namely the control group and the experimental group. In addition, each sample groups were divided into two groups of high reading motivation and low reading motivation. The instrument used to obtain the data of argumentation skill …

Kemampuan Berpikir Kritis Dan Penguasaan Konsep Siswa Dengan Problem Based Learning Pada Materi Sifat Cahaya, Rahmah Kumullah, Ery Tri Djatmika, Lia Yuliati

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This research was aimed to strengthen the influence of PBL models on the ability of critical thinking and mastery of the concept of IPA class IV on the material properties of light. This research type is quasy experiment with pretest posttest control group design. The number of IVA and IVB students is 31. The instrument used in the research is the test of critical thinking ability in the form of essay and the question of mastering the concept of IPA in the form of multiple choice. This study obtained the results that the ability of student to predict students` concept …

Konsistensi Representasi Tingkat Dasar Besaran Fisis Materi Kinematika, Fathoroni Fathoroni, Markus Diantoro, Parno Parno

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

In the world of physics education, there are still many inconsistency in the representation of physical quantities in daily delivery, both in written and oral. But not many researches are really focused on the issue, so that research is done to understand the consistency of the basic level of physical scale and its representation on the kinematics. The research has been done by mixed method method of embedded correlational design model. The study participants amounted to 20 students in the 3rd semester who have passed the basic physics courses 1. The data were collected using physical consistency knowledge consistency test …

Pengaruh Strategi Inkuiri Terbimbing Dan Kolb’S Learning Style Terhadap Kemampuan Berpikir Tingkat Tinggi, Pristy Nandya Putri, Subandi Subandi, Munzil Munzil

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This research was aimed to (1) determine the influence of guided inquiry strategy against high-level thinking skills of students and (2) determine the influence of learning styles diverging, assimilating, accommodating, and converging towards a high level thinking skills of students. This research is a quasy experiment. Before starting learning, students were given learning style questionnaires by David Kolb. Students' high level thinking skill was measured through using validated HOTS instruments in the form of 20 multiple choice questions and 5 description questions including analytical skills (C4), evaluation (C5) and synthesis (C6). The results of this research showed that: (1) there …

The Impact Of The Implementation Of Temporary Import Procedure On Electronic Products: Input--Output Analysis, Dedi Abdul Hadi, Toru Matsumoto

Journal of Environmental Science and Sustainable Development

Currently, imported electronic products enter the Indonesian market using general import procedures, where the importer has to pay the import duty and taxes in full rate. In the absence of proper recycling systems, the electronic products that have reached their end of life and those are no longer used, end up in the landfills. Some researchers found hazardous materials inside the electronic products that could contaminate water, soil and air. Therefore, another strategy is needed to avoid negative effects on the environment. The Temporary import policy is one of the import procedures under Customs administration control, which states that goods …

Analysis Of 3d Printed Ndfeb Polymer Bonded And Organic Based Magnets, Chimaobi Ibeh

Theses

Additive manufacturing (AM), or commonly known as 3D printing, has introduced to the manufacturing and commercial sectors novel ways of reducing production times, decreasing material waste, and enabling end products with multi-material configuration and complex geometric designs. From industrial scale to customer-based printers, AM has revolutionized the approach to manufacturing, prototyping, and designing in the field of medical, automotive, aerospace, biomedical, electronics and customizable products. Recently, additive manufacturing has crossed over to the area of applications in magnetism due to the economic push for the miniaturization of electronic and mechanical devices, reduction in production costs and material & design flexibility. …

Icing Thickness Prediction Model For Overhead Transmission Lines, Yue Ming

Theses

Failures in a large electric power system are often inevitable. Severe weather conditions are one of the main causes of transmission line failures. Using the fault data of transmission lines of Shaanxi Power Grid from 2006 to 2016, in conjunction with meteorological information, this paper analyses the relationship between the temporal-spatial distribution characteristics of meteorological disasters and the fault of transmission lines in Shaanxi Province, China.

In order to analyze the influence of micro-meteorology on ice coating, a grey correlation analysis method is proposed. This thesis calculates the grey relational between ice thickness and micro-meteorological parameters such as ambient temperature, …

Polya Db3: A Database Cataloging Polyadenation Sites(Pas) Across Different Species And Their Conservation, Ram Mohan Nambiar

Theses

Polyadenation is an important process occurring in the messenger RNA that involves cleavage of 3 end nascent mRNAs and addition of poly(A) tails. For this thesis,I present PolyA DB3 ,a database cataloging cleavage and polyadenylation sites (PASs) in several genomes specifically for human,mouse,rat and chicken. This database is based on deep sequencing data. PASs are mapped by the 3’ region extraction and deep sequencing (3’READS) method, ensuring unequivocal PAS identification. Large volume of data based on diverse biological samples is used to increase PAS coverage and provide PAS usage information. Strand-specific RNA-seq data were used to extend annotated 3’ ends …

Amorphous Metal Oxide Semiconductor Thin Film Transistors For Printed Electronics, Mustafa Mohammad Yousef

Theses

There is an acute market need for solution-processable semiconductor inks that can form the essential components of the printed analog and digital circuits. Currently, the industry is migrating beyond simply printing conductive metals for interconnects and embracing higher integration by printing transistors directly on the same substrate. This thesis focuses on investigating solution-processed amorphous indium gallium zinc oxide (IGZO) as a semiconducting channel layer of a field-effect transistor to enable low-cost, large-area printed electronics that are physically flexible and optically transparent. Specifically, we aim to achieve field-effect mobility exceeding 1 cm²/Vs, to overcome the limits faced in existing …

Mapping The Science Of Law: A Jurimetrics Analysis, Jeyshankar -. Ramalingam -, Nishavathi E

Library Philosophy and Practice (e-journal)

This article provides an outline for jurimetrics and its role in finding most relevant and influential decisions of Supreme Court of India particularly in the topic of sexual harassment covering the period of 5 years (2012 to 2016). It retrieved 35 precedents that cited 662 legal information sources. These precedents are further analyzed with the network measures such as degree centrality, closeness centrality and authoritative scores to find out the influential and relevant decisions in sexual harassment. The precedents of Supreme Court of India (V_n=575) legal citation network is created to map the science of law.

Theory Of Potential-Based Integral-Form A-Φ Formulation In Electromagnetic Applications, Qin S. Liu, Li (Lijun) Jun Jiang, Sheng Sun, Qi Dai, Weng Cho Chew

Electrical and Computer Engineering Faculty Research & Creative Works

Recent progress on the theory of potential-based A-φ formulationin the integral form and its electromagnetic applications are summarized and presented here. By using Lorenz gauge and solving the vector and scalar potential formulations in tandem, the A-φ formulationac-curately captures the correct physics of both electrostatics and magnetostatics. The wide-band stable, dense-discretization breakdown free and structure-independent solver provides an alternative solution to various electromagnetic scattering and circuital problems. Also, the A-φformulationis applied to solve the characteristic modes at low frequencies.

Ell Students: Literacy Development And Language Development, Heidi T. Penke

Journal of Curriculum, Teaching, Learning and Leadership in Education

The article is about the history of ELL students and the challenges they are faced in an educational setting. Also literacy development is discussed as educators need to be aware of the importance of literacy development. The article also discusses language development and language acquisition for an ELL student.

In Defense Of Public Schools: A Toolkit From The Midwest, Ferial Pearson, Ann Hunter-Pirtle

Journal of Curriculum, Teaching, Learning and Leadership in Education

One of the defining features of public schools is that they operate at the will of the people, with public oversight from elected school boards. In addition to being free and open to all, free from religious affiliation, and promoting civic understanding and participation, much of what makes public schools public happens through the democratic process. We have noticed that many teachers are so overworked and overwhelmed - rightly focused on their own classrooms and their own students’ day to day struggles - that it’s not easy for them to engage and advocate for themselves and their students in the …