Densitas Ikan Pelagis Kecil secara Akustik di Laut Arafura

Akustik merupakan salah satu metode pendugaan densitas ikan. Penelitian ini dilaksanakan di Laut Arafura menggunakan alat akustik Scientific fishfinder Split Beam Echosounder Type Simrad EK 60 dan sampling alat tangkap menggunakan trawl. Pengambilan data survei akustik menggunakan desain paralel di sub-area Kepulauan Aru dan subarea Dolak pada Bulan November 2006. Hasil penelitian menunjukkan bahwa komposisi ikan pelagis kecil didominasi oleh famili clupeidae. Nilai target strength ikan pelagis kecil yang terdeteksi paling banyak adalah −51 dB sampai dengan −47 dB (ukuran ikan 07.10 - 10.47 cm). Densitas ikan yang tinggi pada bagian kolom perairan 0 - 30 m yakni 15.693 ikan/1000m3 dan semakin berkurang dengan bertambahnya kedalaman. Secara umum, densitas ikan Sub-area Dolak lebih tinggi daripada Sub-area Kepulauan Aru yakni 8.293 ekor ikan/1000m

Pemahaman Akuntansi Zakat dalam Meningkatkan Transparansi dan Akuntabilitas pada Badan Amil Zakat Palembang

Muslim population in Indonesia has encouraged the implementation of Islamic law in social and economic life for example zakat. Badan Amil Zakat as an institution engaged in the management of zakat still needs to improve its performance so that the optimization can be achieved. Indonesian Institute of Accountants (IAI) has issued a standardization of zakat accounting under SFAS 109. This study aims to determine how an understanding of accounting concepts in Amil Zakat charity in Palembang with a case study approach and qualitative analysis techniques. The results showed that the understanding of accounting zakat is still low but about its benefits are pretty good. IAI existence has been known to the public, but the standard is not yet widely known. Zakat only be understood as a liability in accordance with the guidelines of Islamic law, has not been conceived as a public activity that requires accountability

Analysis of 137Cs Radionuclide Content in Sediment in Musi Watershed Using Gamma Spectrometer and its Affecting Factors

The concentration of the radionuclide 137Cs on sediment in watershed in Palembang has been analyzed. This study aims to determine the influence of sampling location and the water quality indicators of water pH, sediment pH, conductivity, turbidity, and sediment type on the concentration of 137Cs and to determine the distribution pattern of 137Cs in sediments. Sampling was conducted at seven stations spaced approximately 5 km apart, placed from the western end to the eastern end  of the Musi river segment located within Palembang City.Sediment samples were prepared and their 137Cs contents were measured with gamma spectrometry. The results showed that their 137Cs concentrations ranged from below MDC (minimum detectable concentration) to 1.51 Bq/kg. This was within the 1×103 Bq/kg limit set by the quality standard. The varied and very low concentrations of 137Cs are thought to have originated from global fallout. The location point of sampling affects the concentration of radionuclide 137Cs while the characteristics of water quality are do not. The 137Cs concentration spread pattern in Musi sediment is influenced by tidal currents and river morphology

Should I stay or should I go? Skilled immigrants' perceived brain-waste and social embeddedness

Purpose: Drawing on embeddedness theory, we examine how skilled immigrants' perceived brain-waste affects their social embeddedness. Social embeddedness facilitates the acquisition of host country-specific human capital, which, in return, can accelerate the transfer of immigrants' human capital in the workplace. Design/methodology/approach: In total, 397 skilled immigrants in Australia participated in this study. We applied a set-theoretic approach to decode the complexity and interplay among the key concepts used in this study. Findings: We found the impacts of psychological workplace wellbeing and workplace discrimination on social embeddedness differ between skilled immigrants who experience perceived brain-waste and skilled immigrants whose skills were recognized by employers. The results suggest that job satisfaction is the most critical factor contributing to social embeddedness among skilled immigrants who did not report brain-waste. Furthermore, we found that married skilled male immigrants who reported brain-waste still could embed socially if they did not directly experience workplace discrimination. Originality/value: The majority of previous studies have compared skilled immigrants with their local-born colleagues, but we compared two groups of skilled migrants in the current study. We adopted fuzzy-set qualitative comparative analysis to test how unique configurations of several variables can ease their social embeddedness into the host society

Development of Building Heat Detection System: An Improvement Study

ABSTRACT- The increment of the numbers for accidents due to building safety system errors has created a serious disaster over the year. Due to that reason, this paper presents the entitled Building Heat Detection System (BHD System) by the objectives to develop the proper circuit in order to secure the detection device during the building fire attack. A BHD system, also known as fire protection system consists of heat sensing and monitoring system. The sensors detect extreme heat in an area or zone; the control unit processes the signals and sets off evacuation alarms to alert building occupants. This study focused on the design and fabrication of the system prototype to demonstrate the operation of a BHD system in case of fire accidents. Hose reel indicator is included to display the exact location in a building to aid in firefighting. On top of that, exit indicators were added to show the available exits should fire breaks out in a building. This study is hoped to help the system engineers to improve and secure their building safety system in the future

Bats (chiropteran) reported with Aspergillus species from Kubah National Park, Sarawak, Malaysia.

A preliminary survey of chiropterans (bats) with potential zoonotic fungi was conducted as part of the Sowell-UNIMAS Expedition 2006. This survey was conducted at Kubah National Park, Matang, Sarawak from 14th to 16th August 2006. The main aim of this survey was to document variety of fungal isolates from bats external (ears) and internal (saliva and anal) swabs. All of the fungi species were subjected to both macroscopic and microscopic observations to characterize their morphology. Out of 23 species of bats observed, 13 (56.5%) species were found to contain 17 fungi isolates of the genus Aspergillus from five subgenera, five sections and six species. The fungi isolates were Aspergillus restrictus, A. sydowii, A. fumigatus, A. niger, A. clavatus and A. japonicus. The highest numbers of isolates recorded was for A. restrictus with six isolates followed by A. fumigatus and A. sydowii with two isolates respectively. Where as, A. niger, A. clavatus and A. japonicus each recorded with one isolate only. Aspergillus fumigatus was the first record isolated from bats the samples (n = 64) from Sarawak. It was reported that this isolate is a pathogenic and thermophilic (able to grow up to 65°C) isolate which was found to be on a lesion near ear opening of Hipposideros cervinus. Further work should be done to discover potential mycoflora in wildlife mammals

Assessing the bond strength of hot mix asphalt pavement for wearing and binder courses

This study investigated the use of a shear box device to measure the bond condition between two layers of hot mix asphalt pavement: the wearing course and the binder course. The wearing course analysed was a Malaysian dense-graded asphaltic concrete mixture of nominal maximum aggregate 10 mm in size (AC10), which was applied over the binder course of another dense-graded asphaltic concrete mixture, AC28. A range of bond conditions was investigated by selecting various asphalt emulsions, application rates, and wearing course thicknesses based on the Malaysian standards of specification. Test results showed that interface shear strength increased as tack coat application rates and wearing course thicknesses increased. Among the tested asphalt emulsion types, a modified asphalt emulsion called RS2KL provided the highest shear resistance. Findings also show that a binder's complex shear modulus elastic portion (G*/sinδ) can affect interface shear strength for thin mixes at low rates of tack coat application

Performance of asphaltic concrete modified with recycled crushed bricks

The pavement industry relies greatly on this conventional material in constructing the road. However, the shortage of the mined material has led to the need of finding alternative with local materials to partially substitute the asphalt components. The conventional pavement industry also contributed to thermal and greenhouse emission resulting from the mining activities. In addition, throughout the year, the amount of construction and demolition (C&D) waste generated from civil construction activities particularly in Malaysia is increasing in alarming rate. Recycling the C&D waste specifically in bricks is viewed as reasonable potential as aggregate modifier in the impulse for greener and sustainable asphalt pavement production. In this paper, recycled crushed bricks (RCB) is introduced to bituminous wearing course as partial replacement for coarse aggregates. The coarse aggregate is partially replaced with RCB in proportions of 0%, 10%, 20%, 30% and 40% by weight. This study summarizes the results of laboratory evaluation of Los Angeles Abrasion Value, Aggregate Crushing Value and Marshall Test. Results show that asphaltic concrete modified with 10% RCB has the lowest abrasion and crushing values which were 20.2% and 30% respectively. Similarly, the mix has the highest Marshall Stability and lowest flow which 15.61 kN and 3.37 mm respectively. Thus, partial replacement of coarse aggregates with 10% RCB in bituminous mix is suitable to be used in wearing course and can be used as alternative material in bituminous mix to reduce the dependency on natural aggregates and utilize the C&D waste efficiently