Analisis Kesesuaian Lahan Menggunakan Sistem Informasi Geografis (Sig) untuk Lokasi Penggemukan Sapi di Kecamatan Ciracap, Kabupaten Sukabumi sebagai Upaya Swasembada Daging Sapi

Pada tahun 2016, Kementerian Pertanian melakukan perhitungan terhadap kebutuhan daging sapi di Indonesia, yaitu mencapai 490.000 ton dan baru terpenuhi 441.000 ton atau kekurangan sekitar 48.000 ton. Swasembada daging adalah suatu upaya pemerintah dalam merencanakan program pemenuhan kebutuhan daging dalam negeri yang melibatkan seluruh lapisan masyarakat Indonesia dan mengurangi impor sapi. Untuk membantu program berkelanjutan swasembada daging di Indonesia, maka salah satu solusinya adalah penggemukan sapi potong (DPAK Bank Indonesia, 2013). Penggemukan sapi potong adalah salah satu solusinya karena lebih menguntungkan dari usaha pembesaran sapi potong. Hal ini disebabkan karena pada penggemukan sapi potong yang ingin dicapai adalah peningkatan bobot daging sapi dalam waktu tiga bulan (Purnawan Yulianto dan Cahyo Saparinto, 2014). Kemudian, kabupaten Sukabumi adalah salah satu daerah yang ditargetkan akan dijadikan sentra wilayah penggemukan sapi setelah Bogor (Kompas, 2016). Wilayah sukabumi sendiri memiliki dua daerah yang akan dijadikan sentra peternakan, yaitu di Daerah Purbaya dan Ciracap (Dinas Peternakan Sukabumi dalam Neraca, 2016). Kemudian, penelitian ini akan dilakukan di daerah Ciracap, yaitu dengan mengetahui tingkat kesesuaian lahan pada peternakan penggemukan sapi. Tujuan dari penelitian ini adalah untuk mengetahui pemenuhan kebutuhan daging sapi dengan cara pemilihan lahan penggemukan sapi melalui Sistem Informasi Geografis (SIG). Hasil dari penelitian ini adalah dari 8 desa di daerah Ciracap 5 desa mayoritas memiliki kelas S2 atau sesuai dan di arah selatan, tepatnya di desa Ujung Genteng hampir seluruh wilayah nya memilki kelas S1 atau sangat sesuai. Dari hasil penelitian ini bisa disimpulkan bahwa 6 desa di daerah Kecamatan Ciracap, sesuai untuk digunakan sebagai lokasi peternakan penggemukan sapi

Remediasi Kesalahan Siswa SMA Mengerjakan Soal-soal Rangkaian Listrik Arus Searah melalui Model Pembelajaran Twa

Aim of this research is to determine the effect of Teaching With Analogy (TWA) model to remediate student mistakes in resolving direct-current electrical circuit problems. The research was pre-experimental with one group pretest-posttest design. 36 students in a class as a sample was choosen by intact group over 4 classes at first grade in senior high school. The result show that student mistake in resolving direct current electrical circuit problems after using TWA model reduced by 29%. This research also discover that TWA model has effect to reduce student mistakes to resolve direct-current electrical circuit problems (z = 9,06; p< 0,05). Hopefully, this research can be a reference to remediate student mistakes in reduce direct-current electrical circuit

Location aware sensor routing (LASeR) protocol for mobile wireless sensor networks

Location aware sensor routing (LASeR) protocol is a novel solution to the challenges of routing in mobile wireless sensor networks (MWSNs). It addresses the high reliability and low latency requirements of emerging applications. The protocol uses location information to maintain a gradient field even in highly mobile environments, whilst reducing the routing overhead. This allows the protocol to utilise a blind forwarding technique to propagate packets towards the sink. The protocol inherently utilises multiple paths simultaneously to create route diversity and increase its robustness. LASeR is designed for use in a high variety of MWSN applications with autonomous land, sea or air vehicles. Analytical expressions are derived and evaluated against the simulations. Extensive modelling and simulation of the proposed routing protocol has shown it to be highly adaptable and robust. It is compared with the recent MWSN proactive highly ambulatory sensor routing protocol, the high performance mobility adaptive cross-layer routing protocol, as well as ad-hoc on-demand distance vector and optimised link state routing. Protocols are evaluated on packet delivery ratio, end-to-end delay, overhead, throughput and energy consumption. The results highlight both the high performance of LASeR in various challenging environments and its superiority over the state-of-the-art

A closed-form approximation of correlated multiuser MIMO ergodic capacity with antenna selection and imperfect channel estimation

Abstract—Antenna selection (AS) is a promising technology to substantially reduce the complexity of massive multiple-input multiple-output (MIMO) systems. However, spatial correlation and imperfect estimation of channel state information (CSI) are well known to have a direct impact on the capacity of feasible MIMO schemes. In this paper, a tight closed-form approximation of the ergodic capacity for correlated Rayleigh fading multiuser MIMO channels with receive AS and imperfect CSI is presented. The derived expression takes into account the spatial correlation at both link sides and channel estimation error at the receiver. It can be used for arbitrary numbers of users, antennas, and receive RF chains. Furthermore, a concise analytical capacity formula is derived in the high signal-to-noise ratio (SNR) region. Numerical results validate the accuracy of our closed-form expressions over different channel conditions and SNRs. The new capacity approximation extends the state-of-the-art and enables efficient performance evaluation of varied multiantenna applications including massive MIMO for 5G systems

Radish Juice Promote Kidney Stone Deposition in Ethylene Glycol-induced Urolithiasis in Rats

Urolithiasis is a well-known problem that stones could form in various parts of the urinary system and it is the most common disease of the urinary tract. The current study was planned to investigate the effect of radish juice on ethylene glycol (EG)-induced urolithiasis. Twenty-one rats randomly divided into three groups. The first group was the control group was received normal standard diet and drinking water and the second group represented the model group received 0.75% EG in drinking water ad libitum. The third group received radish juice (2 ml/kg of body weight) by gavage plus EG (0.75%) in drinking water ad libitum. The experiment was conducted for 28 days. The light microscope examination revealed a disturbed histological architecture of the kidney tissues, including dilated renal tubules, aggregation of infiltrated leukocytes inflammatory cells, and crystal deposition in the model group. The EG plus radish juice treated rats showed higher crystal density with improved renal tubule structure and alleviated inflammation. Both treated groups showed various biochemical alterations compared to control group, but the most interest biochemical result was the significant decrease of malondialdehyde, a lipid peroxidation marker, and in the radish plus EG group compared to the EG group. Scanning electron microscopy showed clear structural detail about calcium oxalate crystals in which radish-treated group showed higher crystal deposition and calcified tissue compared to EG group. The present study concluded that radish juice promotes stone deposition but exerted an antioxidant effect