DESAIN SENSOR JARAK DENGAN OUTPUT SUARA SEBAGAI ALAT BANTU JALAN BAGI PENYANDANG TUNA NETRA

Sense of vision is one source of vital information to human. It is not excessive if it is being pointed out that the most of information which has been acquired by humans comes from the senses of vision, while the remainder comes from other senses. Thus are, it can be realized that if someone gate some problems with their sense of vision, so their ability to do their activity will be greatly reduced, this is because the information they obtain will be greatly reduced when compared with those with normal vision. In general, the physically blind persons using a white cane or a trained dog to assist the movement and enhance the safety and independence at the time of walking. By having enough information to route that will be passed, persons with visual impairment can be more convenient to navigate in an unknown environment. To solve those problems, we will make a system which can replace and refine the mobility aid which has been existed. This system uses the remaining steps toward an obstacle as the output which expected that it can simplify and make safer the user to navigate in outdoor. On this system calculation error of distance conversion is 4,03 and 4,3 when the system on use to calculate step length. Distance calculation step process takes an average of 5.8 seconds or similar with 4-5 steps while for object detection process takes 1 to 2.5 seconds depending on the type of object being detected. Key Word : Blind, walker, walk sensor, navigation

Analisa Kecepatan Pengelasan dan Kecepatan Putar Mata Pahat terhadap Konduktivitas Listrik Sambungan Aluminium dan Tembaga Hasil Friction Stir Welding (FSW)

The tool pin rotational speed and welding speed affect the electrical conductivity value of the Al-Cu connection. Al-Cu connection is a butt joint resulting from the friction stir welding (FSW) process. The material used is Al 6061 and pure copper. The friction stir welding (FSW) process uses a pin tool with a pin design that integrates with the pin tool and a three-degree angle. The purpose of this study was to determine the electrical conductivity value of the Al-Cu connection with the friction stir welding (FSW) process at the butt joint connection. The variables used in this study were pin tool rotation speeds of 800, 1000, and 1250 RPM and welding speeds of 10, 12.5, and 16 mm/min. Tests conducted in this study were macro structure testing, measurement of resistance values, and microhardness testing. Besides, an analysis of heat input and welding time is needed for each variable. The results of macro and XRD structure test results show that in the aluminum and copper connection, there are intermetallic compounds in the form of AlCu and Al2Cu. The results of the analysis state that the welding results with a welding speed of 12.5 mm/min are the most optimum variables. The welding process results in conductivity values ranging from 27.173 mΩ-1mm-2 and 28.09 mΩ-1mm-2. The presence of intermetallic compounds affects the conductivity value of the connection

Analysis of possible systematic errors in the Oslo method

In this work, we have reviewed the Oslo method, which enables the simultaneous extraction of level density and gamma-ray transmission coefficient from a set of particle-gamma coincidence data. Possible errors and uncertainties have been investigated. Typical data sets from various mass regions as well as simulated data have been tested against the assumptions behind the data analysis.Comment: 23 pages, 33 figures. As published in Phys. Rev.

Quasicontinuum γ\gamma-decay of 91,92^{91,92}Zr: benchmarking indirect (n,γn,\gamma) cross section measurements for the ss-process

Nuclear level densities (NLDs) and $\gamma$-ray strength functions ($\gamma$SFs) have been extracted from particle-$\gamma$ coincidences of the $^{92}$Zr($p,p' \gamma$)$^{92}$Zr and $^{92}$Zr($p,d \gamma$)$^{91}$Zr reactions using the Oslo method. The new $^{91,92}$Zr $\gamma$SF data, combined with photonuclear cross sections, cover the whole energy range from $E_{\gamma} \approx 1.5$~MeV up to the giant dipole resonance at $E_{\gamma} \approx 17$~MeV. The wide-range $\gamma$SF data display structures at $E_{\gamma} \approx 9.5$~MeV, compatible with a superposition of the spin-flip $M1$ resonance and a pygmy $E1$ resonance. Furthermore, the $\gamma$SF shows a minimum at $E_{\gamma} \approx 2-3$~MeV and an increase at lower $\gamma$-ray energies. The experimentally constrained NLDs and $\gamma$SFs are shown to reproduce known ($n, \gamma$) and Maxwellian-averaged cross sections for $^{91,92}$Zr using the {\sf TALYS} reaction code, thus serving as a benchmark for this indirect method of estimating ($n, \gamma$) cross sections for Zr isotopes.Comment: 10 pages and 9 figure

Small States in the Rearview Mirror: Legitimacy in the Management of Economy and Society

Small States in World Markets is about political efficacy and legitimation rather than scoring who is ahead in the economic sweepstakes. Its case for democratic corporatism rests on norms, particularly stability, rather than on narrow measures of economic efficiency. But stability and the efficacious management of the economy and social problems requires a degree of technocracy that undermines the legitimacy of the management process itself by helping to produce populist revolts

PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS MEDIA SOSIAL INSTAGRAM PADA MATERI TRANSFORMASI FUNGSI DAN INVERS FUNGSI

Penelitian ini bertujuan untuk mengembangkan media pembelajaran menggunakan media sosial Instagram dan mengetahui kelayakannya. Penelitian ini merupakan penelitian pengembangan dengan model ADDIE yang melalui 5 tahapan yaitu Analysis, Design, Development, Implementation, dan Evaluation. Uji coba produk dilakukan pada uji coba lapangan utama di kelas XII MIPA 2 dengan jumlah 31 peserta didik SMA Negeri 1 Ngemplak. Teknik pengumpulan data menggunakan angket validasi dan angket respon peserta didik. Teknik analisis data secara deskriptif kualitatif dan kuantitatif. Hasil penelitian berupa video pembelajaran yang di upload di akun Instagram @matematikia.asik. Berdasarkan penilaian validator Instagram pembelajaran dikategorikan valid dengan hasil validasi media dan materi diperoleh skor rata- rata 3,93, angket repon peserta didik dengan hasil skor rata- rata sebesar 3,55 dalam kategori baik sehingga, media pembelajaran berbasis media sosial Instagram layak dan efektif digunakan dalam proses pembelajaran

Murder in Jerba : honour, shame and hospitality among Maltese in Ottoman Tunisia

Little is known about the sizeable Maltese communities developing along the southern and eastern shores of the Mediterranean in the mid-nineteenth century and the extent to which the migrants reproduced Maltese cultural traditions and practices overseas. This article considers this question through a microhistorical analysis of events culminating in the murder of a Maltese woman in the Ottoman Regency of Tunis in 1866. A close reading of transcripts from the interrogation of witnesses and the accused, all members of a Maltese community in Jerba reveals their shared cultural practices and beliefs surrounding the provision of hospitality, honour and shame. Viewed from this perspective, the curious responses of the witnesses to the murder of their compatriot become meaningful, and the crime is reframed as an honour killing.peer-reviewe

Public health interventions for Aedes control in the time of Zikavirus- A metareview on effectiveness of vector control strategies

Background: There is renewed interest in effective control measures to control Zika and dengue vectors. A synthesis of published systematic reviews with a focus on grading of intervention evidence is warranted to determine the reliability of evidence for control strategies. Methodology: We conducted a meta-review (a systematic review of systematic reviews) assessing the effectiveness of any Aedes control measure. We searched Scopus and Medline for relevant reviews through to 11 May 2016. Titles, abstracts and full texts were assessed independently for inclusion by two authors. Data extraction was performed independently in duplicate using a standardised form and validity of the evidence in each review was assessed using GRADE criteria. Findings: 13 eligible systematic reviews that investigated the effect of community interventions on entomological parameters (such as vector density) or disease incidence were included. Quality of evidence was mostly low to very low due to poor reporting of study design, observational methodologies, heterogeneity, and indirect outcomes, hindering an evidence-based recommendation. Biological controls seem to achieve better reduction of entomological indices than chemical controls, while educational campaigns can reduce breeding habitats and interrupt disease transmission cycle. Integrated control strategies may not add efficiency to educational campaigns. Conclusions: Despite decades of Aedes mosquito abatement programmes, mosquito populations are widely established and abundant, and associated with a significant disease burden. The efficiency of any control programme is dependent on local settings and resources. More good quality primary studies for the control of Aedes transmitted diseases are still required

ETHNOMATHEMATICAL EXPLORATION OF THE TRADITIONAL FABRIC OF KARAWO GORONTALO IN RELATION TO THE CONCEPT OF TRANSFORMATION GEOMETRY

This study aims to explore the ethnomathematics contained in the traditional fabric motifs of Karawo Gorontalo in relation to the concept of geometry transformation. This research is qualitative in ethnographic design. The subjects of this study were Karawo embroidery craftsmen with research locations in Karawo production houses, Ayula village, Tapa district, Bone Bolango regency, Gorontalo Province. Data collection techniques with observation, interviews, documentation studies, and literature studies are then analyzed using Spradley’s domain analysis method. The results showed that is an embroidery art that has been preserved since 1600 AD and continues to be preserved by Gorontalo women until now. Karawo also has a manufacturing process that includes slicing and plucking yarn, Mo-Karawo or embroidery, and the last stage is to make refinement. The Ethnomathematics of Karawo fabric embroidery patterns is the geometry of transformation, which is some motifs that can apply the concepts of translation, reflection, dilation, and rotation. This application shows a relationship and can explain the relationship between the concept of transformation geometry and Karawo and can also be illustrated in the Cartesian diagram