Pengaruh Pupuk Npk Dan Kascing Terhadap Pertumbuhan Kelapa Sawit (Elaeis Guineensis Jacq.) Fase Main Nursery

The purpose of this research is to know the interaction between NPK fertilizer and vermicompost, as getting the best treatment on the growth of palm oil seedling main nursery phase. This research has been conducted in the experimental station of Agriculture Faculty, University of Riau in November 2015 to March 2016. The study was conducted by using factorial in completely randomized design (CRD), and two factors and three replications. The first factor is fertilizer NPK with 3 levels (0, 20 and 30 g / plant) and the second factor is vermicompost with 4 levels (0, 20, 40 and 60 g / plant). The parameters measured were the increase of plant height, the increase number of leaves, the increase of stem diameter, root volume, leaf area, plant N absortion and outbreak of the leaf. The results were analyzed statistically using analysis of varian (ANOVA) and followed by Duncan's New Multiple Range Test (DNMRT) at 5% level. The results showed that the interaction of NPK fertilizer and vermicompost provides no significant influence on the parameters the increase of plant height, the increase number of leaves, the increase of stem diameter leaf area but the interaction of NPK fertilizer and vermicompost provides significant influence on the parameters increase of root volume. Vermicompost application at a dose of 20 g / plant gives the highest N absortion

The Role of Emotion in Elimination of Contribution and Collaboration Dilemma in Citarum River Basin Problem

The purposes of the current research are to identify, analyze and simulate the dynamics of interaction and conflicts among agents using drama theory in Citarum river basin problem. To accomplish these purposes, we crate a simulation model that combine drama theory and emotional state model (PAD model). Drama theory was adopted because it able to describe dilemmas and paradox arising from rational goal seeking behavior. It also provides us with rigorous analytical and computational tools for conflict analysis. Our previous model was able to recognize and solve confrontation dilemmas, i.e., persuasion and rejection dilemma among the agents. In this paper, we propose an enhanced simulation model that is able to recognize and solve collaboration dilemmas (trust dilemma) among the agents. In order to obtain some fruitful suggestions for encouraging agent's collaboration, we product agent-based simulation using SOARS (Spot Oriented Agent Role Simulator)

Investigating Aggressive Driving Behavior in Reducing Traffic Congestion on Bandung City

. Traffic congestion reflects waste of time and energy that must be eliminated. Many methods have been employed by past studies to solve this problem. The approach utilized by those studies is mostly macroscopic that consider vehicles and drivers in aggregate. This study argues that a more microscopic approach is also required to depict and solve the congestion problem. Hence, agent-based simulation is brought forward to help identify the cause of congestion problem. In this study, drivers are assumed to have their own motives that might drive them to resort to aggressive behaviors that ultimately lead to traffic congestion. As a preliminary investigation, this study aims to discover type of aggressive driving behavior on Bandung City. The results demonstrate that aggressive dirivng behaviors on Bandung City can be categorized into five factors namely improper speed, inattentiveness, display of hostility, impatience, and disobedience of traffic sign/signals. This study also found that different composition of driving behaviors leads to different degree of congestion. Impatience behavior is found to be the factor that must be eliminate to remedy congestion on Bandung City

Website as Co-Created Decision Support System Towards Enhanced Experience of Solo City Tourism

. The linkage among information-intensive era, technology, and tourism industry build inseparable genetic relationship which is supposed to be realized in practice. Let alone in this digital era, the urgency to exploit information to the next level resulted in the need to bring a higher game on the technology in order to manage information effectively and efficiently. Tourism industry is categorized as complex system regarding the components substituted it. The diverse elements which interact with dynamics pace give birth to complex tasks to manage by the responsible parties and consequently enhance experience in tourism industry. Competing with complex situation, computerized decision system is urgently needed to collect and also distribute accurate knowledge of tourism industry, collaborate with both supporting public and private sectors, and gain rationality for all stakeholders in the system. Solo city, known also as Surakarta and located in Central Java (Indonesia), is obliged to do its tourism industry justice as it is an important vehicle for regional development of the city. Tourism industry of Solo city represents the major and significant contributor to the local economy to the point where tourism is the brand of Solo city. Taking the prior research finding, value orchestration platform to promote tourism in batik Solo industrial cluster into the reference, this study improves the model by highlighting the duality function the tourism website supposed to have using hashtag (#) minings principle as the latest user interface technology. This study proposes a collaborative website platform as a co-created decision support system to enhance tourism experience for tourist as consumer and optimize management process for Department of Culture and Tourism of Solo city as provider

Undulator radiation driven by laser-wakefield accelerator electron beams

The Advanced Laser-Plasma High-Energy Accelerators towards X-rays (ALPHA-X) programme is developing laserplasma accelerators for the production of ultra-short electron bunches with subsequent generation of coherent, bright, short-wavelength radiation pulses. The new Scottish Centre for the Application of Plasma-based Accelerators (SCAPA) will develop a wide range of applications utilising such light sources. Electron bunches can be propagated through a magnetic undulator with the aim of generating fully coherent free-electron laser (FEL) radiation in the ultra-violet and Xrays spectral ranges. Demonstration experiments producing spontaneous undulator radiation have been conducted at visible and extreme ultra-violet wavelengths but it is an on-going challenge to generate and maintain electron bunches of sufficient quality in order to stimulate FEL behaviour. In the ALPHA-X beam line experiments, a Ti:sapphire femtosecond laser system with peak power 20 TW has been used to generate electron bunches of energy 80-150 MeV in a 2 mm gas jet laser-plasma wakefield accelerator and these bunches have been transported through a 100 period planar undulator. High peak brilliance, narrow band spontaneous radiation pulses in the vacuum ultra-violet wavelength range have been generated. Analysis is provided with respect to the magnetic quadrupole beam transport system and subsequent effect on beam emittance and duration. Requirements for coherent spontaneous emission and FEL operation are presented

SILAC-based proteomic quantification of chemoattractant-induced cytoskeleton dynamics on a second to minute timescale

Cytoskeletal dynamics during cell behaviours ranging from endocytosis and exocytosis to cell division and movement is controlled by a complex network of signalling pathways, the full details of which are as yet unresolved. Here we show that SILAC-based proteomic methods can be used to characterize the rapid chemoattractant-induced dynamic changes in the actin–myosin cytoskeleton and regulatory elements on a proteome-wide scale with a second to minute timescale resolution. This approach provides novel insights in the ensemble kinetics of key cytoskeletal constituents and association of known and novel identified binding proteins. We validate the proteomic data by detailed microscopy-based analysis of in vivo translocation dynamics for key signalling factors. This rapid large-scale proteomic approach may be applied to other situations where highly dynamic changes in complex cellular compartments are expected to play a key role

The N-methyl-d-aspartate receptor antagonist CPP alters synapse and spine structure and impairs long-term potentiation and long-term depression induced morphological plasticity in dentate gyrus of the awake rat

Long-term morphological synaptic changes associated with homosynaptic long-term potentiation (LTP) and heterosynaptic long-term depression (LTD) in vivo, in awake adult rats were analyzed using three-dimensional (3-D) reconstructions of electron microscope images of ultrathin serial sections from the molecular layer of the dentate gyrus. For the first time in morphological studies, the specificity of the effects of LTP and LTD on both spine and synapse ultrastructure was determined using an N-methyl-d-aspartate (NMDA) receptor antagonist CPP (3-[(R)-2-carboxypiperazin-4-yl]-propyl-1-phosphonic acid). There were no differences in synaptic density 24 h after LTP or LTD induction, and CPP alone had no effect on synaptic density. LTP increased significantly the proportion of mushroom spines, whereas LTD increased the proportion of thin spines, and both LTP and LTD decreased stubby spine number. Both LTP and LTD increased significantly spine head evaginations (spinules) into synaptic boutons and CPP blocked these changes. Synaptic boutons were smaller after LTD, indicating a pre-synaptic effect. Interestingly, CPP alone decreased bouton and mushroom spine volumes, as well as post-synaptic density (PSD) volume of mushroom spines.These data show similarities, but also some clear differences, between the effects of LTP and LTD on spine and synaptic morphology. Although CPP blocks both LTP and LTD, and impairs most morphological changes in spines and synapses, CPP alone was shown to exert effects on aspects of spine and synaptic structure

Laser-plasma-based space radiation reproduction in the laboratory

Space radiation is a great danger to electronics and astronauts onboard space vessels. The spectral flux of space electrons, protons and ions for example in the radiation belts is inherently broadband, but this is a feature hard to mimic with conventional radiation sources. Using laser-plasma-accelerators, we reproduced relativistic, broadband radiation belt flux in the laboratory, and used this man-made space radiation to test the radiation hardness of space electronics. Such close mimicking of space radiation in the lab builds on the inherent ability of laser-plasma-accelerators to directly produce broadband Maxwellian-type particle flux, akin to conditions in space. In combination with the established sources, utilisation of the growing number of ever more potent laser-plasma-accelerator facilities worldwide as complementary space radiation sources can help alleviate the shortage of available beamtime and may allow for development of advanced test procedures, paving the way towards higher reliability of space missions

Penerapan Algoritma DES Untuk Enkripsi Dan Dekripsi Pada File Video

Security of data, especially on the video file is very important to be kept confidential. This has to do with copyright. For that developed a method that aims to randomize video files, so it can not be accessed by others who are not interested. Encription Data Algorithm Standard (DES), an encryption algorithm with a symmetric key, one of the cryptography method introduced by WL Tuchman in 1972 at the IBM lab. DES algorithm, processed at 64 bit plain. DES algorithm using external keys up to 8 characters or 64 bits. The external keys are processed to produce 16 pieces of internal key with each key length 48 bits. The internal lock is a part in the process of encryption and decryption. In addition the DES algorithm also uses the s-box predefined eight pieces, which will be used in the Feistel system. DES algorithm is quite good with the loop 16 times on the stages of encryption and decryption. This makes plain file encryption function optimally. DES Algorithm felt able to be applied to the cryptographic process on the video files, especially video files to WMV format. This is because the result of encryption of video files is very different from the original video file. WMV video file format is a video format windows, which can be played using a variety of video player

Manajemen Pemupukan Tanaman Kelapa Sawit (Elaeis Guineensis Jacq.) Di Pelantaran Agro Estate, Kalimantan Tengah

Penelitian dilakukan di Pelantaran Agro Estate, Kalimantan Pusat mulai 14 Februari sampai 14 Juni 2011. Penelitian belajar dan memahami pengelolaan pembuahan kelapa sawit. Data dikumpulkan dari sumber primer dan sekunder. Data primer dianalisis mengenai keefektifan (waktu tepat, jenis kanan, dosis benar, metode yang benar), efisiensi tenaga kerja, dan kekurangan nutrisi. Pengelolaan pemupukan di Pelantaran Agro Estate (PAGE) pada umumnya telah dilaksanakan sesuai dengan standar pemupukan. Taman tersebut telah memperhatikan ketentuan dan rekomendasi yang telah direkomendasikan pemupukan dan telah mengacu pada prinsip 4 T (waktu yang tepat, jenis hak, dosis tepat, dan metode yang benar) dalam hal mencapai efektivitas dan efisiensi pemupukan. . Namun, dalam penggunaan tenaga kerja belum efisien yang tentunya berdampak pada efisiensi waktu dan biaya. Realisasi pemupukan belum sepenuhnya dilaksanakan sesuai dengan rekomendasi. Hambatan dalam penerapan pemupukan masih ditemukan di daerah berawa dan bergelombang