Enantioselective Total Synthesis of (+)-Salvileucalin B

An enantioselective total synthesis of the diterpenoid natural product (+)-salvileucalin B is reported. Key findings include a copper-catalyzed arene cyclopropanation reaction to provide the unusual norcaradiene core and a reversible retro-Claisen rearrangement of a highly functionalized norcaradiene intermediate

Rapid Assembly of the Salvileucalin B Norcaradiene Core

Preparation of the polycyclic core of the cytotoxic natural product salvileucalin B is described. The key feature of this synthetic strategy is a copper-catalyzed intramolecular arene cyclopropanation to provide the central norcaradiene. These studies lay the foundation for continued investigations toward an enantioselective total synthesis of 1

Voting Preferences at Getasan Sub-District in Semarang Regency Head Election

The regional head election in Semarang Regency was followed by two candidate pairs namely Mundjirin-Ngesti Nugraha and Nur Jatmiko - Mas' Ridudwan. One of the candidates is an incumbent from the previous regent, Mundjirin. This research tries to analyze related to voter preferences in Semarang Regency Regent election. Data collection methods used were interviews, observation and literature study. From the results of the study, researchers found two factors that had a significant influence in influencing the preferences of the Getasan sub-district community voters in the Semarang Regent election, namely the popularity and success team of the candidate pair. The habit of blusukan to the community while serving as regent previously made the popularity of Mundjirin known by the community. This has become a big capital in influencing people's preference to choose because the community's trust in their leaders has been built. On the other hand, Mundjirin is paired with Ngesti where Ngesti is a native / native son of Getasan sub-district, making Getasan to contribute greatly in giving victory to this couple. In addition, Ngesti was also the chairperson of Commission C of the Semarang Regency DPRD with the vote of 14,728 as the only candidate to reach the BPP and have a good role in the Semarang community. The factor of the campaign team and volunteers also has a big contribution because the success team becomes a form of socialization that is more easily understood by the community and even the successful team moves up to the RT level, besides of course inviting family and colleagues who have the right to vote

Kebutuhan Pupuk Npk Optimum Bawang Bombay di Dataran Tinggi

Tanaman bawang Bombay membutuhkan ketersediaan unsur hara NPK di dalam tanah dalam jumlah yang cukup dan berimbang. Penelitian ini bertujuan untuk mendapatkan dosis pupuk NPK yang optimum untuk 2 kultivar bawang Bombay introduksi di dataran tinggi. Penelitian dilakukan di Kebun Percobaan Balai Penelitian Tanaman Sayuran Lembang, 1.250 m dpl dengan jenis tanah andisol. Rancangan percobaan menggunakan petak terpisah dengan 3 ulangan. Kultivar bawang bombay asal Australia yaitu E-515 dan Z-512 ditempatkan sebagai petak utama, sedangkan 14 kombinasi dosis N-P2O5-K2O ditempatkan sebagai anak petak. Kisaran dosis pupuk N, P, dan K adalah 75-375 kg/ha N, 75-375 kg/ha P2O5 dan 75-375 kg/ha K2O. Hasil penelitian menunjukkan bahwa pertumbuhan tanaman dan hasil umbi bawang bombay kultivar E-515 dan Z-512 mempunyai respons yang tidak berbeda terhadap dosis pupuk N, P, dan K. Dosis pupuk N, P, dan K yang optimum untuk kedua kultivar bawang bombay introduksi adalah 137 kg/ha N, 160 kg/ha P2O5, dan 195 kg/ha K2O. Hasil penelitian ini dapat digunakan untuk meningkatkan efisiensi penggunaan pupuk dan hasil tanaman bawang bombay.Onion plants need balance of NPK nutrient supply in soil. This experiment was conducted at Experimental Garden of Indonesian Vegetables Research Institute Lembang, 1,250 m asl with andisol soil type, to find out the optimum dosage of NPK fertilizer application for 2 introduced onion cultivars in highland. A split plot design with 3 replications was used. Two introduced onion cultivars from Australia (E-515 and Z-512) were assigned to main plot, and 14 combination of NPK dosages were assigned to subplot. The range of N, P, K dosages were 75-375 kg/ha N, 75-375 kg/ha P2O5 and 75-375 kg/ha K2O. The results revealed that both onion cultivars No. E-515 and No. Z-512 did not give different respons to NPK fertilization, expressed in the vegetative growth and bulb yield. The optimum dosage of NPK for both cultivars was 137 kg/ha N, 160 kg/ha P2O5 and 195 kg/ha K2O. The results can be applied to increase the efficiency of NPK fertilization on the introduced short-day onion

Pengaruh Naungan Plastik Transparan, Kerapatan Tanaman, Dan Dosis N Terhadap Produksi Umbi Bibit Asal Biji Bawang Merah

. Sumarni, N. and R. Rosliani. 2010. The Effect of Transparent Plastic Shelter, Plant Density, and N Dosages on Shallots Seed Production from True Shallots Seed (TSS). Shallots can be cultivated by using bulb seed or TSS. Planting materials from TSS could produce mini bulb seeds which finally gave healthier shallots plant with high quality of bulb yield than that of from bulbs (conventional method). Several factors affected the yield of mini bulb shallots seed, among other thing are plant density, N fertilization, and the application of transparent plastic shading. The objective of this experiment was to find out the effect of plastic shelter, plant density, and N dosage to produce shallot bulb seeds from TSS. The research was carried out at the Experimental Garden of Indonesian Vegetables Research Institute Lembang (1,250 m asl.) on Andisol type soil from October 2005 to February 2006. The treatments were set up in a factorial randomized block design with three replications. The treatments comprised of three factors. The first factor was application of transparent plastic shelter with three levels, viz. (1) transparent plastic shelter from the beginning of seeds sowing (direct seeded) up to harvest the shallots seed, (2) transparent plastic shelter from the beginning of direct seeded up to six weeks, and (3) without shelter (control). The second factor was the plant density comprised of three levels, viz : 4, 6, and 8 g/m2 of TSS. The third factor was the dosages of N fertilizer with two levels, viz : 45 and 90 kg N/ha. The results showed that the application of transparent plastic shelter and plant density significantly affected the plant growth and shallots seed yield. Application of N fertilizer of 45 to 90 kg N/ha did not significantly affect plant growth and shallots seed yield eventually. The highest yield of shallots seed, viz. 2.54 kg/m2 was gained from the application of transparent plastic shelter from the beginning of sowing untill harvest with plant density of 8 g/m2 of TSS and 45 kg N/ha, with more than 70% bulb size for consumption (>5 g/bulb), and the rest 17 to 20% bulb size for seed (3 to 5 g/bulb). No mini bulb shallots seed (<2 g/bulb) was produced. This technique was quite promising and potential for increasing yield and bulb quality of shallots seed

Pengaruh Pembenaman Residu Tanaman Penutup Tanah Kacang-kacangan Dan Mulsa Jerami Terhadap Hasil Cabai Merah Dan Kesuburan Tanah Andisol

. Sumarni, N. and R. Rosliani. 2009. The Effect of Buried Leguminosae Cover Crops and RiceStraw Mulch Residues in the Soil on the Yield of Hot Pepper and Fertility of Andisol Soil. This experiment wasconducted at Experimental Garden of Indonesian Vegetables Research Institute from November 2004 until March2005. The objectives of this experiment were to evaluate the effects of leguminosae cover crops and rice straw mulchresidues which were buried in the soil on yield of hot pepper and fertility of Andisol soil-Lembang. A randomized blockdesign with 3 replications was used in this experiment. The treatments were 9 buried cover crop residues, consistedof peanut, red bean, and rice straw mulch, and 1 treatment of stable manure as a control. Peanut cover crops withplanting distance of 50 x 30 cm were replanted in all experimental plots (except control). Hot pepper var. Hot Beautywas used in this experiment with planting distance of 60 x 50 cm. The results showed that the buried residues of peanutcrops, red bean crops, rice straw mulch, and stable manure application did not significantly affect the growth and yieldof hot pepper, and fertility of Andisol soil. Peanut cover crops residue 7 t/ha + rice straw mulch residue 5 t/ha, withreplanted peanut crop as cover crops was the best treatment to maintain fertility of Andisol soil and yield of hot pepper

Analysis of Factors Related to the Stroke in Patients with Stroke in Ward C 1st Floor and 2nd Floor in the Rssn Bukittinggi 2016

Stroke still become a health problem of society, due to the high incidence of morbidity, mortalities, and disability. Stroke attack estimated 25% was recovered from the first stroke in five years. Stroke occurrence because of risk factors an unhealthy lifestyle. The aim of this research was to determine to analyze risk factors (smoking and sports habits, diet and medical check-up obedience) related to the causes of stroke attack. The research of methods was observational analytic with a retrospective approach. The result of this research shows that smoking habits unrelated to stroke occurrence (p-value 1,000). Diet obedience unrelated to stroke occurrence (p-value 0,952). Sport habits unrelated to stroke occurrence (p-value 0,501). Medical check-up obedience was unrelated to stroke occurrence (p-value 0,069). In conclusion, there is not a relationship between smoking habits, diet obedience, sport habits, and medical check-up obedience by the stroke. It is advisable to the institutional hospital can give information to stroke patients the cause of incidence stroke not only one but many factors, and then how to control to avoid stroke attack and recurrent stroke attack

IMPLEMENTASI EXTREME PROGRAMMING DALAM PENGEMBANGAN SISTEM PENCATATAN DAN PELAPORAN KASUS PADA GUGUS TUGAS PERCEPATAN PENANGANAN COVID-19 PROVINSI NTT

Sistem pendataan kasus COVID-19 Provinsi NTT harus dapat beradaptasi dengan sangat cepat sehingga bisa mempercepat proses pendataan dan pada akhirnya dapat menghasilkan bahan pendukung pengambilan keputusan Pemerintah Provinsi dalam menangani kasus COVID-19. Penelitian ini bertujuan untuk mengembangkan sistem pendataan kasus COVID-19 di Provinsi NTT menggunakan metode extreme programming dalam masa pemberlakuan PSBB dimana tim sangat dibatasi dalam berkomunikasi secara tatap muka. Model arsitektur perangkat lunak yang digunakan adalah Model View Control (MVC) dengan memanfaatkan framework codeigniter. Hasil penelitian ini menunjukkan bahwa proses pengembangan sistem yang fleksibel sangat cocok jika menggunakan model pengembangan extreme programming terutama jika tim pengembang hanya terdiri dari maksimal 6 orang. Dengan demikian project yang dikembangkan bisa lebih cepat di-deliver ke pengguna sehingga dapat segera digunakan.   Kata kunci: Extreme Programming, COVID-19, NT