ertumbuhan Bibit Kopi Liberika Tungkal Jambi (Coffea liberica W. Bull ex Hiern) pada Media Gambut yang Diberi Kapur Dolomit

offee is one of the leading commodities in the plantation sector which is widely cultivated in Indonesia. The aims of this research is to know the response of dolomite dosage for growth of liberica coffee seedlings in peat soil. Completely Randomized Design (RAL) were used in this research with a dolomite dose as a treatment factor. The treatment were without dolomite (control), dolomite 7.5 g / polybag, dolomite 11.25 g / polybag and dolomite 15 g / polybag. This research was conducted from June to September 2017. The results showed that giving of dolomite can increase the growth of coffee seedlings of liberica Tungkal Jambi and dolomite dosage of 7.5 g / polybag showed the best growth in performance of coffea seedlings of the whole aspect

The Effectiveness Of Providing Vulanic Ash (Tuff Vulcan) And Dolomite As Amelioran Materials On The Growth Of Immature Liberica Coffee Plants In Peat Land Of Mekar Jaya Village

Liberika coffee is one type of coffee that is widely cultivated by people in wetland areas (peat)  precisely in Betara District, Tanjung Jabung Barat Regency. In recent years, this district has become a development center and provider of Liberika coffee seeds for coffee plantation farmers from various regions such as Palembang, Kalimantan and Riau. Liberika coffee is a type of coffee that is able to adapt and produce quite well in peatlands with areca nut as a cover crop. The productivity of coffee in this area is still low at an average of 715 / kg when compared to the potential yield of Liberika coffee which can reach 950 kg / ha. Increasing production and productivity can be done through intensification and extensification. One of the efforts to improve the physical and chemical properties of peat soils so as to increase the growth and production of coffee plants is the use of ameliorants (soil enhancers). This study aims to develop a technology for using ameliorant to improve the chemical properties of peat soil. Specifically, through this study, the dosage combination of vulcan tuff ash and dolomite can be identified. which can substitute the use of artificial fertilizers (inorganic) so that it can increase the growth and production of immature liberica coffee plants on peatlands. especially the coffee plantation of farmers in the village of mekar jaya, betara district, tanjung jabung west district. From the results of this study it can be concluded that the treatment of volcanic ash and dolomite did not show significant differences in plant height parameters and, stem diameter. but it gives a real difference to the growth of live area, the number of flowers per bunch and the number of flowers in each bunch. treatment of volcanic ash 500 / gr / tree and dolomite 500 / gr / tree and a combination of volcanic ash 250 / gr / tree + dolomite 250 / gr / tree after 7 weeks of application can significantly spur on the initiation of flowering an average of 7 bunches of branch flowers if compare with control (no treatment). Likewise, observations 8 weeks after application showed the same thing, there was an increase in the number of flowers formed an average of 11 flower clumps branching. From the results of this study, it can be concluded that the provision of ameliorant from vulcan tuff ash and dolomite can improve the chemical properties of peat soil so as to increase nutrient availability for growth and production of the Liberika coffee plant. From the results of this study, it can also be suggested that the use of volcanic ash and dolomite at a dose of 250-500 gr / tree to accelerate the productive phase of immature liberica coffee plants (young plants) in peatlands

Pemberdayaan Usaha Homestay Dalam Menunjang Destinasi Ekowisata Dusun Lubuk Beringin Kecamatan Bathin III Ulu Kabupaten Bungo Provinsi Jambi

Tujuan dari pengabdian memberi pengetahuan dan keterampilan dalam manajemen usaha serta pengelolaan homestay kawasan ekowisata di dusun Lubuk Beringin Kecamatan Bathin III Ulu Kabupaten Bungo Provinsi Bungo. Standar Pengelolaan berdasarkan Peraturan Menteri Pariwisata dan Ekonomi Kreatif Nomor 9 Tahun 2014 tentang Standar Usaha Pondok Wisata. Pemberdayaan kepada pemilik Homestay bertujuan untuk menjamin kualitas produk, pelayanan dan pengelolaan dalam rangka memenuhi kebutuhan dan kepuasan tamu; dan memberikan perlindungan kepada tamu, pengusaha hotel, tenaga kerja, dan masyarakat, baik untuk keselamatan, kesehatan, kenyamanan, keamanan, dan kemudahan dan pelestarian lingkungan hidup. Homestay di kawasan Ekowisata Dusun Lubuk Beringin memiliki potensi yang dapat dikelola untuk lebih berkembang dengan menerapkan manajemen usaha wisata secara profesional, namun masih menghadapi permasalahan dalam hal sumberdaya manusia yang dimiliki. Oleh karenanya pemerintah dapat mengambil peran dalam upaya peningkatan kapasitas Sumberdaya Manusia (SDM) harus dilakukan secara rutin dan berkesinambungan melalui program pendidikan dan pelatihan kepariwisataan

Efektivitas Koagulan Deo Rubber Pada Beberapa Tingkat Konsentrasi Dan Dosis Terhadap Mutu Bahan Olah Karet Rakyat

Salah satu permasalahan bahan olah karet saat ini adalah rendahnya mutu bahan olah karet. Untuk menghasilkan bahan olah karet yang bermutu baik maka lateks dapat dibekukan dengan bahan pembeku/koagulan anjuran. Tujuan penelitian ini adalah untuk mengetahui pengaruh dari aplikasi Deorub pada beberapa kombinasi konsentrasi dan dosis terhadap mutu bahan olah karet rakyat dan mendapatkan konsentrasi dan dosis Deorub yang menghasilkan mutu bahan olah karet rakyat terbaik khususnya pada klon yang banyak digunakan oleh masyarakat petani karet (BPM 1). Penelitian ini dilaksanakan di lahan milik petani karet di Desa Pondok Meja, Kecamatan Mestong, Kabupaten Muara Jambi, Provinsi Jambi. Penelitian ini menggunakan perancangan lapangan dengan menempatkan perlakuan secara acak dalam satuan-satuan percobaan yang terdiri dari 10 perlakuan yaitu : Tanpa menggunakan deorub (asam semut/K0), Deorub konsentrasi 2,0% dengan dosis 50 ml (K1), Deorub konsentrasi 2,0% dengan dosis 100 ml (K2), Deorub konsentrasi 2,0% dengan dosis 150 ml (K3), Deorub konsentrasi 2,0% dengan dosis 200 ml (K4), Deorub konsentrasi 3,0% dengan dosis 50 ml (K5), Deorub konsentrasi 3,0% dengan dosis 100 ml (K6), Deorub konsentrasi 3,0% dengan dosis 150 ml (K7), Deorub konsentrasi 3,0% dengan dosis 200 ml (K8), Deorub konsentrasi 3,5% dengan dosis 150 ml (K9) masing-masing diberikan pada 1 liter lateks. Dilakukan beberapa tahapan analisis data seperti uji normalitas, uji homogenitas, uji anova dan uji lanjut DMRT 5%. Jika data tidak teruji normal dan homogen maka dilakukan analisis data kruskal wallis dan uji lanjut paired T test. Hasil penelitian menunjukkan bahwa aplikasi Deurob pada beberapa kombinasi konsentrasi dan dosis berpengaruh nyata terhadap mutu bahan olah karet rakyat klon BPM 1. Perlakuan Deurob konsentrasi 3,5% dengan dosis 150 ml merupakan kombinasi konsentrasi dan dosis yang menghasilkan mutu bahan olah karet rakyat terbaik dalam mempercepat koagulasi, meningkatkan KKK, kadar kotoran yang rendah dan nilai PRI yang tinggi pada tanaman karet klon BPM 1

Hierarchic Superposition Revisited

Many applications of automated deduction require reasoning in first-order logic modulo background theories, in particular some form of integer arithmetic. A major unsolved research challenge is to design theorem provers that are "reasonably complete" even in the presence of free function symbols ranging into a background theory sort. The hierarchic superposition calculus of Bachmair, Ganzinger, and Waldmann already supports such symbols, but, as we demonstrate, not optimally. This paper aims to rectify the situation by introducing a novel form of clause abstraction, a core component in the hierarchic superposition calculus for transforming clauses into a form needed for internal operation. We argue for the benefits of the resulting calculus and provide two new completeness results: one for the fragment where all background-sorted terms are ground and another one for a special case of linear (integer or rational) arithmetic as a background theory

Nonlinear management of the angular momentum of soliton clusters

We demonstrate an original approach to acquire nonlinear control over the angular momentum of a cluster of solitary waves. Our model, derived from a general description of nonlinear energy propagation in dispersive media, shows that the cluster angular momentum can be adjusted by acting on the global energy input into the system. The phenomenon is experimentally verified in liquid crystals by observing power-dependent rotation of a two-soliton cluster.Comment: 4 pages, 3 figure

Optimistic Non-repudiation Protocol Analysis

The original publication is available at www.springerlink.com ; ISBN 978-3-540-72353-0 (Pring) 0302-9743 (Online) 1611-3349International audienceNon-repudiation protocols with session labels have a number of vulnerabilities. Recently Cederquist, Corin and Dashti have proposed an optimistic non-repudiation protocol that avoids altogether the use of session labels. We have specified and analysed this protocol using an extended version of the AVISPA Tool and one important fault has been discovered. We describe the protocol, the analysis method, show two attack traces that exploit the fault and propose a correction to the protocol

Highly Nonlocal Response benefit or drawback?

A highly nonlocal optical response in space has been shown to heal several shortcomings of beam self-action in nonlinear optics. At the same time, nonlocality is often connected to limits and constraints in both temporal and spatial domains. We provide a brief and rather subjective review of what we consider the main benefits and some drawbacks of a highly nonlocal response in light localization through nonlinear optics, with several examples related to reorientational soft matter, specifically nematic liquid crystals

Fast-slow partially hyperbolic systems versus Freidlin-Wentzell random systems

We consider a simple class of fast-slow partially hyperbolic dynamical systems and show that the (properly rescaled) behaviour of the slow variable is very close to a Friedlin--Wentzell type random system for times that are rather long, but much shorter than the metastability scale. Also, we show the possibility of a "sink" with all the Lyapunov exponents positive, a phenomenon that turns out to be related to the lack of absolutely continuity of the central foliation.Comment: To appear in Journal of Statistical Physic

Searching for planar signatures in WMAP

We search for planar deviations of statistical isotropy in the Wilkinson Microwave Anisotropy Probe (WMAP) data by applying a recently introduced angular-planar statistics both to full-sky and to masked temperature maps, including in our analysis the effect of the residual foreground contamination and systematics in the foreground removing process as sources of error. We confirm earlier findings that full-sky maps exhibit anomalies at the planar ($l$) and angular ($\ell$) scales $(l,\ell)=(2,5),(4,7),$ and $(6,8)$, which seem to be due to unremoved foregrounds since this features are present in the full-sky map but not in the masked maps. On the other hand, our test detects slightly anomalous results at the scales $(l,\ell)=(10,8)$ and $(2,9)$ in the masked maps but not in the full-sky one, indicating that the foreground cleaning procedure (used to generate the full-sky map) could not only be creating false anomalies but also hiding existing ones. We also find a significant trace of an anomaly in the full-sky map at the scale $(l,\ell)=(10,5)$, which is still present when we consider galactic cuts of 18.3% and 28.4%. As regards the quadrupole ($\ell=2$), we find a coherent over-modulation over the whole celestial sphere, for all full-sky and cut-sky maps. Overall, our results seem to indicate that current CMB maps derived from WMAP data do not show significant signs of anisotropies, as measured by our angular-planar estimator. However, we have detected a curious coherence of planar modulations at angular scales of the order of the galaxy's plane, which may be an indication of residual contaminations in the full- and cut-sky maps.Comment: 15 pages with pdf figure