Upaya Peningkatan Keselamatan pada Bundaran Rawan Kecelakaan di Kota Pekanbaru

Keselamatan pada bundaran merupakan hal yang perlu mendapatkan perhatian serius. Pengguna kendaraan pada bundaran berpotensi untuk mengalami kecelakaan lalu lintas yang dapat menyebabkan kerugian moril materil. Studi ini mengambil kasus bundaran yang memiliki angka kecelakaan tertinggi di Pekanbaru. Data kecelakaan diperoleh dari Riau Safety Driving Center (RSDC) selama 4 tahun terahir. Metode yang digunakan adalah survey keselamatan dan analisis konflik. Kecelakaan pada bundaran ini sebanyak 80% terjadi pada siang hari. Permasalahan pada bundaran ini meliputi besarnya konflik yang melibatkan kendaraan yang akan masuk ke jalinan pada masing masing pendekat. Selain itu tipe kerusakan jalan yang ditemui adalah retak buaya, dan pelepasan butiran. Berdasarkan permasalahan tersebut diusulkan prioritas tindakan penanganan yang paling layak secara ekonomi. Rambu stop dan marka berhenti dipasang pada keempat lengan persimpangan. Pita penggaduh sebanyak 5 strip dipasang pada keempat lengan persimpangan untuk memperingatkan pengendara agar mengurangi kecepatan kendaraan yang berjarak 30 meter sebelum persimpangan, marka tepi dan penambahan rambu stop

A convenient synthesis of pyrandione derivatives using P-toluenesulfonic acid as catalyst under ultrasound irradiation

A new series of 3,3'-{alkane-α,ω-diylbis[imino-eth-1-yl-1-ylidene]}bis(6-methyl-2H-pyran-2,4(3H)-dione) derivatives (3c-e) has been synthesized by the convenient ultrasound-mediated condensation of a diamine with dehydroacetic acid in the presence of a catalytic amount of p-toluenesulfonic acid. The structure of all synthesized compounds was elucidated by IR spectroscopy, 1H NMR spectroscopic spectra, elemental analysis, and mass spectroscopy. A tautomeric form for the derivatives species is also proposed.Keywords: Dehydroacetic acid; Schiff base; Condensation; Catalyst; Ultrasound irradiation; Tautomeris

PELATIHAN PEKERJAAN PEMBESIAN KOLOM PADA RSUD TALANG UBI KABUPATEN PALI

In this community service, the writer and the team provide training on the completion of a column which is the upper structure. This training was carried out on a building construction project at the Talang Ubi Regional Hospital in Pali district, South Sumatra. The development of this hospital includes the construction of the lower structure to the upper structure. The partner who helped carry out the training was PT. Pilar Mas Perkasa which is engaged as an executive contractor. From the results of this dedication activity, our dedication team has a target to be achieved, namely to provide training on the work of mounting column reinforcement iron, namely how to bend the reinforcement in the column, fixing the correct column accompanied by installing formwork for the column. The method used in carrying out this activity is direct observation in the field, namely the Talang Ubi Regional Hospital in Pali district. This training activity by giving guidance to the handyman and field supervisor. The directions given include checking the reinforcement used must be in accordance with the work contract, tools used to make hooks on the reinforcement, K3 used by builders and field supervisors. From the training in the installation of reinforcing steel columns at the Talang Ubi Regional Hospital in Pali district, as follows the installation of reinforcing iron in column work must pay attention to the hooks in each reinforcement bar, the bending of the reinforcing iron must also be carried out according to the procedure, which must be done before assembly, cutting concrete steel cannot be carried out carelessly, make sure the concrete iron (plain or threaded) has a standard length of 12 meters and its diameter must also be in accordance with needs, bending tools must be in accordance with the diameter of the iron, especially the size of the bending gap

Multimedia File Signature Analysis for Smartphone Forensics

© 2016 IEEE. With the emergence of smartphones and the widespread use of social media services, distribution of multimedia files over the Internet, and using mobile phones, has increased exponentially over the past few years. A significant number of cybercrimes pertain to illicit possession, modification, and distribution of multimedia files. The use of smartphones for this purpose makes these mobile phones rich sources of evidence. Therefore, it is crucial for forensic examiners to have the capability of recovering, analyzing, and authenticating the source of multimedia contents stored on these devices. This paper focuses on the analysis of multimedia files created on the most popular smartphones in order to ascertain the source and examine whether the files are original or edited through these devices. The popular smartphones brands analyzed in this paper include iPhone 5, iPhone 6, Blackberry Z10, Samsung Galaxy Note 3, Nokia Lumia 930, and Lenovo A536. Experimental results on all these brands are also presented

Pembuatan Aplikasi Sistem Informasi Geografis Persebaran Lembaga Kursus Bahasa Inggris Berbasis Android (Studi Kasus Desa Tulung Rejo Dan Desa Pelem Kecamatan Pare Kabupaten Kediri )

Tulung Rejo village and Pelem village were located in Pare District, Kediri Regency, East Java. On these villages which were generally known as "Kampung Inggris", spreaded 104 english courses. By having wide-large area and large number of the courses, it still have less informations such as the names, locations, and facilities of those courses. In order to accomplish this problem, it was needed geographic information system to manage and provide spatial and non spatial data.This research used coordinate data which was gotten by GPS handheld. First step was by designing an application, which consisted of use case scenario, activity diagram, class diagram, and user interface. The second was by coding the application using HTML 5 by framework ionic. The last was by running the application using emulator of pc for ensuring the application was match with the first plan. After it perfectly fixed, it can be appropriately compatible on AndroidThe output of this research was a mobile GIS application which had an informations about the courses at Tulung Rejo Village and Pelem Village. It offered the names, locations, facilities, and some other supporting informations. It was expected this application can provide useful informations and hopefully this research can be developed in the future

Influence of different dry milling processes on the properties of an attapulgite clay, contribution of inverse gas chromatography

Attention, cette publication comporte un corrigendum.International audienceThe effect of dry milling processes on the surface properties of an attapulgite clay, also called palygorskite, was investigated by carrying out experiments with different types of grinding devices. Ground products were then characterized by size measurement, scanning electron microscopy, X-ray diffraction, adsorption-desorption of N-2 and inverse gas chromatography at infinite dilution (IGC-ID) as well as finite concentration conditions (IGC-PC). These analyses were performed to evaluate the changes in particle size distribution, morphology, crystallinity and surface properties of attapulgite powder, respectively. Among the tested dry grinding devices, grinding in an air jet mill (Alpine 50 AS) and a vibratory ball mill (Pulverisette 0) led to the most significant particle size reduction. SEM photomicrographs showed that a breakage of the fibrous structure took place during dry grinding. Moreover, long grinding in Pulverisette 0 resulted in the complete destruction of fibre morphology followed by agglomeration. XRD analysis showed that whatever the grinding process, the microstructure of the attapulgite was not affected. IGC confirmed that only grinding in Pulverisette 0 affected the surface properties notably. In this case, the most significant decreases were observed in the dispersive component of the surface energy (164 to 116 mJ/m(2)) and in the specific surface area obtained with the octane probe (114.5 m(2)/g to 62.6 m(2)/g) by IGC-ID and IGC-FC, respectively. At the same time, a modification of the distribution functions of the adsorption energies (DFAE), giving information about surface heterogeneity, was noticed

antioxidant and anticandidal activities of the tunisian haplophyllum tuberculatum forssk a juss essential oils

Abstract Haplophyllum tuberculatum Forssk. is a medicinal plant growing in Tunisia. It is widely used in traditional medicine against gastro-intestinal problems, fevers, ear infections and rheumatisms. The present investigation evaluated the effects of leaves, stems and leaves + stems essential oils of Haplophyllum tuberculatum Forssk. and of their pure compounds on free radicals as well as their anticandidal activities. Screening for the antioxidant activity of the oils, R-(+)-limonene, S-(−)-limonene and 1-octanol was conducted by DPPH, ABTS and β-carotene/linoleic acid radical scavenging assays. The essentials oils and their compounds were screened for antifungal activity against four Candida species: Candida albicans ATCC 90028; Candida glabrata ATCC 90030; Candida parapsilosis ATCC 27853 and Candida krusei ATCC 6258. When compared with ascorbic acid as standard, it was found that the essential oils have a significant inhibition in scavenging free radicals, resulting in an important IC50. The pure compounds were inactive against the free radicals. The anticandidal test results showed that leaves, stems and leaves + stems oils strongly inhibited the growth of Candida krusei at 30 μg/mL leaves oils and 70 μg/mL for other oils and that moderately of the 3 other Candida species. The pure compound, 1-octanol, was active one against the candida species, with MIC-values between 0.07 and 1.25 mg/mL. In all in vitro assays, a significant correlation existed between the concentrations of the essential oils, the percentage inhibition of free radicals and of the growth inhibitory of tested candida species. The results indicate the essential oils may be applied for treating diseases related to free radicals, potentially to prevent cancer development and as an antifungal agent against Candida