To Duckweeds (\u3cem\u3eLandoltia punctata\u3c/em\u3e), Nanoparticulate Copper Oxide is More Inhibitory than the Soluble Copper in the Bulk Solution

CuO nanoparticles (CuO-NP) were synthesized in a hydrogen diffusion flame. Particle size and morphology were characterized using scanning mobility particle sizing, Brunauer–Emmett–Teller analysis, dynamic light scattering, and transmission electron microscopy. The solubility of CuO-NP varied with both pH and presence of other ions. CuO-NP and comparable doses of soluble Cu were applied to duckweeds, Landoltia punctata. Growth was inhibited 50% by either 0.6 mg L−1 soluble copper or by 1.0 mg L−1 CuO-NP that released only 0.16 mg L−1 soluble Cu into growth medium. A significant decrease of chlorophyll was observed in plants stressed by 1.0 mg L−1 CuO-NP, but not in the comparable 0.2 mg L−1 soluble Cu treatment. The Cu content of fronds exposed to CuO-NP is four times higher than in fronds exposed to an equivalent dose of soluble copper, and this is enough to explain the inhibitory effects on growth and chlorophyll content

Aplikasi Sistem Pakar Untuk Mendiagnosa Kerusakan Monitor CRT

This research aims to design up a program of expert system to diagnose the damage of CRT monitor (Cathode Ray Tube) with a solution of repair. This system using knowledge base rules and decision table as its knowledge representation. The programming language in use is Visual Basic 6.0. Research results is a system with consulting, addition of a base rule, and increased knowledge menus. This expert system application is able to diagnose damage to CRT monitor also provides solutions in fixe

Hubungan Antara Komunikasi Interpersonal Orang Tua Dengan Motivasi Berprestasi Pada Siswa SMA Negeri 2 Semarang

Penelitian ini bertujuan untuk mengetahui hubungan komunikasi interpersonal orang tua dengan motivasi berprestasi siswa di SMA Negeri 2 Semarang. Populasi penelitian ini yaitu siswa SMA Negeri 2 Semarang sebanyak 514 siswa. Sampel penelitian sebanyak 248 siswa, sampel diambil dengan menggunakan teknik cluster random sampling. Alat ukur yang digunakan adalah Skala Psikologi yaitu Komunikasi Interpersonal Orang Tua (35 aitem valid, α = 0,928) dan Motivasi Berprestasi (24 aitem valid,α = 0,851). Teknik analisis yang data yang digunakan dalam penelitian ini adalah analisis regresi sederhana. Hasil penelitian menunjukkan ada hubungan positif yang signifikan antara komunikasi interpersonal orang tua dengan motivasi berprestasi (rxy= 0,389) dengan p = 0,000 (p<0,001). Hal ini menunjukkan bahwa semakin tinggi komunikasi interpersonal orang tua, maka semakin tinggi motivasi berprestasi pada siswa. Komunikasi interpersonal orang tua memberikan sumbangan efektif sebesar 15,1% dalam mempengaruhi motivasi berprestasi dan 84,9% dipengaruhi oleh faktor lain

Toilet assistive system designed for the reduction of accidental falls in the bathroom using admittance controller

This paper suggests an assistive system for the toilet with the objective of measuring human activities and to provide intelligent mechanical assistance to help seating and standing. The project intends to develop a seating assistance as a technical aid in order to reduce accidents and falls in the bathroom. The preferred technique is human-robot physical interaction algorithms known in collaborative robotics (cobot) and adapting it to a personalized assistance technology installed on a smart toilet. First, the design of the mechanical assistance is presented. Then, an admittance controller is designed and implemented in order to help the user in a similar way as a cobot could be used. This technique could be used to assist the user and improve balance with adequate training and an adequate configuration of the admittance controller

Potensi Senyawa Metabolit Sekunder Infusum Daun Durian (Durio Zibethinus) Terhadap Kelulushidupan Ikan Nila (Oreochromis Niloticus) Pada Transportasi Ikan Hidup Sistem Kering [ the Secondary Metabolites Potential of Infusum Durian's (Durio Zibethinus) Leaves Effect to Survival Rate of Nila (Oreochromis Niloticus) on the Livefish Dry Transport System]

Nila (Oreochromis niloticus) is one of the leading commodity and each year will always be increased in both local and export markets. It's in line and will continue to grow due to the tendency of shifting market demand for commodities is of the dead form of fish (frozen) or other processed into a form of life, especially for the needs of breeders on commodity stocks. One of the latest post-harvest technologies that can be applied in the handling of live fish is a fish transport system in the dry media without use of water as a medium of transport with the use of anesthesia using plants that naturally contain active compounds that have the potential as a anesthesia drugs. This study aimed to determine the length of time different fish living on the transportation system with particular concentration infusum dried leaves of durian (Durio zibethinus) effect on the survival rate of nila (O. niloticus). Methods of this study is an experiment with three replications with different concentration intervals. It consisted of a preliminary study to determine the potential infusum durian leaves as anesthesia and primary research material as a form of media applications on the system dry. This study was conducted at the Laboratory of the Faculty of Fisheries and Marine Airlangga University. The results showed that the effective concentration of durian leaves infusum used to transport test was 4100 ppm with an average induction time is 40 minutes and recovery time is 48 minutes. Durian leaves infusum use in nila with 4100 ppm concentration able to achieve the level of survival and long transportation times in a row 100%, 0 h, 88.89%; 2 h, 22.22%; 4 h, 0%; 6 h, and 0%, 8 h on media packaging live fish without water

Reliable Self-Deployment of Cloud Applications

International audienceCloud applications consist of a set of interconnected software elements distributed over several virtual machines, themselves hosted on remote physical servers. Most existing solutions for deploying such applications require human intervention to configure parts of the system, do not respect functional dependencies among elements that must be respected when starting them, and do not handle virtual machine failures that can occur when deploying an application. This paper presents a self-deployment protocol that was designed to automatically configure a set of software elements to be deployed on different virtual machines. This protocol works in a decentralized way, i.e., there is no need for a centralized server. It also starts the software elements in a certain order, respecting important architectural invariants. This protocol supports virtual machine and network failures, and always succeeds in deploying an application when faced with a finite number of failures. Designing such highly parallel management protocols is difficult, therefore formal modeling techniques and verification tools were used for validation purposes. The protocol was implemented in Java and was used to deploy industrial applications

An updated revision of shortfin mako size distributions in the Atlantic

As part of an ongoing cooperative program for fisheries and biological data collection within the ICCAT Sharks Working Group, information collected by fishery observers and scientific projects from several fishing nations in the Atlantic were analyzed. Datasets included information on geographic location, size and sex. A total of 42,979 shortfin mako records collected between 1989 and 2017 were compiled. Sizes considered ranged between 60 and 353 cm FL (fork length). Of those, sex information was available for 24,316 specimens. Considerable variability was observed in the size distribution by region and season, with larger sizes tending to occur in equatorial and tropical regions and smaller sizes in higher latitudes. Variability between coastal and more oceanic waters is also likely. Most fleets showed unimodal distributions, but in some cases there were bimodal patterns. The distributional patterns presented in this study provide an advance in the understanding of shortfin mako size distribution in the Atlantic, and can be used in the next update of the ICCAT shortfin mako stock assessment.info:eu-repo/semantics/publishedVersio

Representations of sport in the revolutionary socialist press in Britain, 1988–2012

This paper considers how sport presents a dualism to those on the far left of the political spectrum. A long-standing, passionate debate has existed on the contradictory role played by sport, polarised between those who reject it as a bourgeois capitalist plague and those who argue for its reclamation and reformation. A case study is offered of a political party that has consistently used revolutionary Marxism as the basis for its activity and how this party, the largest in Britain, addresses sport in its publications. The study draws on empirical data to illustrate this debate by reporting findings from three socialist publications. When sport did feature it was often in relation to high profile sporting events with a critical tone adopted and typically focused on issues of commodification, exploitation and alienation of athletes and supporters. However, readers’ letters, printed in the same publications, revealed how this interpretation was not universally accepted, thus illustrating the contradictory nature of sport for those on the far left

Order-of-magnitude speedup for steady states and traveling waves via Stokes preconditioning in Channelflow and Openpipeflow

Steady states and traveling waves play a fundamental role in understanding hydrodynamic problems. Even when unstable, these states provide the bifurcation-theoretic explanation for the origin of the observed states. In turbulent wall-bounded shear flows, these states have been hypothesized to be saddle points organizing the trajectories within a chaotic attractor. These states must be computed with Newton's method or one of its generalizations, since time-integration cannot converge to unstable equilibria. The bottleneck is the solution of linear systems involving the Jacobian of the Navier-Stokes or Boussinesq equations. Originally such computations were carried out by constructing and directly inverting the Jacobian, but this is unfeasible for the matrices arising from three-dimensional hydrodynamic configurations in large domains. A popular method is to seek states that are invariant under numerical time integration. Surprisingly, equilibria may also be found by seeking flows that are invariant under a single very large Backwards-Euler Forwards-Euler timestep. We show that this method, called Stokes preconditioning, is 10 to 50 times faster at computing steady states in plane Couette flow and traveling waves in pipe flow. Moreover, it can be carried out using Channelflow (by Gibson) and Openpipeflow (by Willis) without any changes to these popular spectral codes. We explain the convergence rate as a function of the integration period and Reynolds number by computing the full spectra of the operators corresponding to the Jacobians of both methods.Comment: in Computational Modelling of Bifurcations and Instabilities in Fluid Dynamics, ed. Alexander Gelfgat (Springer, 2018