202 research outputs found
Muhammadiyah’s Views and Actions on the Protection of Civilians during the Japanese Invasion of the Netherlands Indies, 1941-1942
No full textStudies on Muhammadiyah largely ignore Muhammadiyah’s perceptions of war. This study explores Muhammadiyah’s thoughts and practices on the protection of civilians in a so far neglected war, namely Japanese invasion of the Netherlands Indies in 1941-1942. Using historical research method, this study scrutinizes previously unexamined primary sources, the weekly magazine Adil, which was published by Surakarta branch of Muhammadiyah, in editions between 1941-1942. By examining edicts from the Central Board of Muhammadiyah as well as the writings of individuals affiliated with Muhammadiyah published by Adil, this study argues that Muhammadiyah was highly attentive to efforts to protect the civilians in times of war, by basing its thoughts on the interplay between Islamic principles and modern ideas about the rights of non-combatants in battle. Muhammadiyah strongly emphasized that during the war the civilians must be protected by the state. It moreover advised people to build spiritual and mental strength so that they can survive the war and advocated a self-protection of civilians by encouraging every resident of the Indies to help each other during the war. It campaigned for the protection of civilians with various methods and by establishing a special agency to organize the protection efforts. This study elucidates the role of Muhammadiyah in providing information, religious guidance and practical supports to its members and the Indonesian people in general regarding the protection of civilians in a war that finally overthrew European colonial powers in Southeast Asia.Studi-studi tentang Muhammadiyah masih mengabaikan tema persepsi Muhammadiyah tentang perang. Kajian ini mengeksplor pandangan dan tindakan Muhammadiyah terkait perlindungan warga sipil di masa perang, dalam konteks yang selama ini terabaikan, yaitu invasi Jepang ke Hindia Belanda pada 1941-1942. Dengan menggunakan metode penelitian sejarah, studi ini mengkaji sumber-sumber primer yang belum pernah diteliti sebelumnya, yaitu majalah mingguan Adil yang diterbitkan oleh Muhammadiyah cabang Surakarta, di edisi antara tahun 1941-1942. Dengan menelaah maklumat-maklumat Pimpinan Pusat Muhammadiyah serta tulisan individu-individu yang berafiliasi dengan Muhammadiyah yang diterbitkan oleh Adil, penelitian ini berargumen bahwa Muhammadiyah menaruh perhatian besar pada upaya melindungi warga sipil di masa perang, dengan mendasarkan pemikirannya pada saling interaksi antara prinsip-prinsip Islam dan ide-ide modern tentang hak-hak non-kombatan dalam pertempuran. Muhammadiyah sangat menekankan bahwa selama perang warga sipil harus dilindungi oleh negara. Selain itu, Muhammadiyah mengajak masyarakat untuk membangun kekuatan spiritual dan mental sehingga mereka dapat bertahan dari perang dan menganjurkan agar warga sipil berupaya melindungi diri mereka sendiri dengan mendorong setiap penduduk Hindia untuk saling membantu selama perang. Muhammadiyah mengkampanyekan perlindungan warga sipil dengan berbagai metode dan dengan membentuk badan khusus untuk menyelenggarakan upaya perlindungan. Kajian ini menjelaskan peran Muhammadiyah dalam memberikan informasi, panduan keagamaan, dan dukungan praktis kepada anggotanya dan masyarakat Indonesia pada umumnya mengenai perlindungan warga sipil dalam perang yang akhirnya menggulingkan kekuatan kolonial Eropa di Asia Tenggara.
16 channel200 GHz arrayed waveguide grating based on Si nanowire waveguides
No full textA16 channel arrayed waveguide grating demultiplexer with200 GHz channel spacing based on Si nanowire waveguides is designed. The transmission spectra response simulated by transmission function method shows that the device has channel spacing of1.6 nm and crosstalk of31 dB. The device is fabricated by193 nm deep UV lithography in silicon-on-substrate. The demultiplexing characteristics are observed with crosstalk of5-8 dB, central channel's insertion loss of2.2 dB, free spectral range of24.7 nm and average channel spacing of1.475 nm. The cause of the spectral distortion is analyzed specifically
Identification and Functional Characterization of Adenosine Deaminase in Mucor circinelloides: A Novel Potential Regulator of Nitrogen Utilization and Lipid Biosynthesis
No full textAdenosine deaminase (ADA) is an enzyme distributed in a wide variety of organisms that cleaves adenosine into inosine. Since inosine plays an important role in nitrogen metabolism, ADA may have a critical function in the regulation of fatty acid synthesis. However, the role of ADA in oleaginous fungi has not been reported so far. Therefore, in this study, we identified one ada gene encoding ADA (with ID scaffold0027.9) in the high lipid-producing fungus, Mucor circinelloides WJ11, and investigated its role in cell growth, lipid production, and nitrogen metabolism by overexpressing and knockout of this gene. The results showed that knockout of the ada altered the efficiency of nitrogen consumption, which led to a 20% increment in the lipid content (25% of cell dry weight) of the engineered strain, while overexpression of the ada showed no significant differences compared with the control strain at the final growth stage; however, interestingly, it increased lipid accumulation at the early growth stage. Additionally, transcriptional analysis was conducted by RT-qPCR and our findings indicated that the deletion of ada activated the committed steps of lipid biosynthesis involved in acetyl-CoA carboxylase (acc1 gene), cytosolic malic acid enzyme (cme1 gene), and fatty acid synthases (fas1 gene), while it suppressed the expression of AMP-activated protein kinase (ampk α1 and ampk β genes), which plays a role in lipolysis, whereas the ada-overexpressed strain displayed reverse trends. Conclusively, this work unraveled a novel role of ADA in governing lipid biosynthesis and nitrogen metabolism in the oleaginous fungus, M. circinelloides
Homologous and Heterologous Expression of Delta(12)-Desaturase in Mucor circinelloides Enhanced the Production of Linolenic Acid
No full textLinolenic acid (LA) is gaining more interest within the scientific community. This is because it has a potential medical role in reducing the risk of inflammation, carcinogenesis, atherosclerosis and diabetes and is a valuable nutraceutical for human health. The oleaginous fungus Mucor circinelloides produces a high lipid content (36%), including valuable polyunsaturated fatty acids (PUFAs). However, the critical step in which oleic acid (OA) is converted into LA is not efficient at supplying enough substrates for PUFA synthesis. Hence, we propose a method to increase LA production based on genetic engineering. The overexpression of the Δ12-desaturase gene from M. circinelloides and Mortierella alpina increased the LA content and improved the lipid accumulation (from 14.9% to 21.6% in the Δ12-desaturase gene of the M. circinelloides overexpressing strain (Mc-D12MC) and from 14.9% to 18.7% in the Δ12-desaturase gene of M. alpina overexpressing strain (Mc-D12MA)). Additionally, the up-regulated expression levels of these genes targeted the genes involved in NADPH production, implying that the elevated Δ12-desaturase gene may function as a critical regulator of NADPH and lipid synthesis in M. circinelloides. This study provides the first evidence to support the design of metabolic engineering related to LA and PUFA production in M. circinelloides for potential industrial applications
SDR receiver using commodity wifi via physical-layer signal reconstruction
No full textWith the explosive increase in wireless devices, physical-layer signal analysis has become critically beneficial across distinctive domains including interference minimization in network planning, security and privacy (e.g., drone and spycam detection), and mobile health with remote sensing. While SDR is known to be highly effective in realizing such services, they are rarely deployed or used by the end-users due to the costly hardware ~1K USD (e.g., USRP). Low-cost SDRs (e.g., RTL-SDR) are available, but their bandwidth is limited to 2-3 MHz and operation range falls well below 2.4 GHz - the unlicensed band holding majority of the wireless devices. This paper presents SDR-Lite, the first zero-cost, software-only software defined radio (SDR) receiver that empowers commodity WiFi to retrieve the In-phase and Quadrature of an ambient signal. With the full compatibility to pervasively-deployed WiFi infrastructure (without any change to the hardware and firmware), SDR-Lite aims to spread the blessing of SDR receiver functionalities to billions of WiFi users and households to enhance our everyday lives. The key idea of SDR-Lite is to trick WiFi to begin packet reception (i.e., the decoding process) when the packet is absent, so that it accepts ambient signals in the air and outputs corresponding bits. The bits are then reconstructed to the original physical-layer waveform, on which diverse SDR applications are performed. Our comprehensive evaluation shows that the reconstructed signal closely reassembles the original ambient signal (>85% correlation). We extensively demonstrate SDR-Lite effectiveness across seven distinctive SDR receiver applications under three representative categories: (i) RF fingerprinting, (ii) spectrum monitoring, and (iii) (ZigBee) decoding. For instance, in security applications of drone and rogue WiFi AP detection, SDR-Lite achieves 99% and 97% accuracy, which is comparable to USRP
Theoretical analysis of a novel polarization-insensitive AWG demultiplexer based on Si nanowire and slot waveguides
No full textIdentification and Characterization of Diacylglycerol Acyltransferase from Oleaginous Fungus <i>Mucor circinelloides</i>
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