2,051 research outputs found
Development of TD Website and Repository
No full textSEAFDEC, an Inter-Governmental Organization plays an important role in promotion of sustainable development of fisheries and aquaculture in the Southeast Asian Region for more than four decades. Cooperation with other regional and international organizations have been recognized through several important events such as Millennium Conference in 2001 and ASEAN-SEAFDEC Conference in 2011. Since 1990s, internet have been introduced worldwide, where information technology becomes important as a part of human life including education, economic, social and politicsand so on. Development of high speed internet creates a new communication system and support living style including works and activities such as public relations, multi-media production, publication etc., especially information dissemination and website which are technologies for communication between internal and external organization as well as in developing management system for efficiencies. The objective of this paper is to enhance SEAFDEC visibility by developing the information and dissemination system which developed new TD website in 2017.
In this regards, TD established Southeast Asian Fisheries Development Center, Training Department Institutional Repository (STIR), which is the official digital repository of scholarly, research and technical information of the Department to download all information materials using open source software named the DSpace.
In this paper, author considers the importance of information technology for introducing SEAFDEC/TD activities and improving access to SEAFDEC/TD technical/scientific articles was expressed via the website. In this regards, the author introduced for developing of the TD website and Repository to increase public relation and increase TD’s visibility as well as point out constrains of its development that requires the strengthening and cooperation within the Training Department of SEAFDEC
Winter body mass and over-ocean flocking as components of danger management by Pacific dunlins
No full textAbstract Background We compared records of the body mass and roosting behavior of Pacific dunlins (Calidris alpina pacifica) wintering on the Fraser River estuary in southwest British Columbia between the 1970s and the 1990s. 'Over-ocean flocking' is a relatively safe but energetically-expensive alternative to roosting during the high tide period. Fat stores offer protection against starvation, but are a liability in escape performance, and increase flight costs. Peregrine falcons (Falco peregrinus) were scarce on the Fraser River estuary in the 1970s, but their numbers have since recovered, and they prey heavily on dunlins. The increase has altered the balance between predation and starvation risks for dunlins, and thus how dunlins regulate roosting behavior and body mass to manage the danger. We therefore predicted an increase in the frequency of over-ocean flocking as well as a decrease in the amount of fat carried by dunlins over these decades. Results Historical observations indicate that over-ocean flocking of dunlins was rare prior to the mid-1990s and became common thereafter. Residual body masses of dunlins were higher in the 1970s, with the greatest difference between the decades coinciding with peak peregrine abundance in October, and shrinking over the course of winter as falcon seasonal abundance declines. Whole-body fat content of dunlins was lower in the 1990s, and accounted for most of the change in body mass. Conclusions Pacific dunlins appear to manage danger in a complex manner that involves adjustments both in fat reserves and roosting behavior. We discuss reasons why over-ocean flocking has apparently become more common on the Fraser estuary than at other dunlin wintering sites.</p
The Fraser River: Creative Ecologies for Transformative Pedagogy
No full textRivers are agents of change and transformation, and in this paper, they offer metaphorical and literal inspiration. The three authors are university instructors and artists from the sciences and the fine arts. The poetry, narrative, and visual artwork presented amplify the voice of the more-than-human world, in particular, the Fraser River, and exemplifies art-based learning across the curriculum. University students are dealing with unprecedented stresses: the climate crisis, mental distress, and pandemic-fueled screen fatigue. Art reveals interrelationships and a personal connection to place and pedagogy, while creative expression can cultivate climate resiliency and a path toward better understanding ourselves and our place in the world. Finally, examples of arts-based pedagogical applications connected to waterways are outlined
On Rota-Baxter Nijenhuis TD algebra
No full textThere was a long standing problem of G. C. Rota regarding the classi- fication of all linear operators on associative algebras that satisfy algebraic identities. Initially, only very few of such operators were known, for example, the derivative operator, average operator, difference operator and Rota-Baxter operator. Recently, in a paper by L. Guo, W. Sit and R. Zhang, the authors revisited Rota’s problem by concentrating on two classes of operators; differ- ential type operators and Rota-Baxter type operators. One of the Rota-Baxter type operators they found is the Rota-Baxter Nijenhuis TD (RBNTD) oper- ator which puts together the terms of the well-known Rota-Baxter operator, Nijenhuis operator and Leroux’ TD operator. In this dissertation, we initiate a systematic study of the RBNTD operator, extending the previous works on the Rota-Baxter, Nijenhuis and TD operators. After giving basic properties and examples, we construct free commutative and then free (non-commutative) RBNTD algebras. We then use free RBNTD algebras to obtain an extension of the renowned dendriform algebra with five binary operations.Ph. D.Includes bibliographical referencesMonica AggarwalVita
Large Time Step and DC Stable TD-EFIE Discretized with Implicit Runge-Kutta Methods
No full textThe time domain-electric field integral equation (TD-EFIE) and its differentiated version are widely used to simulate the transient scattering of a time dependent electromagnetic field by a perfect electric conductor (PEC). The time discretization of the TD-EFIE can be achieved by a space-time Galerkin approach or, as it is considered in this contribution, by a convolution quadrature using implicit Runge-Kutta methods. The solution is then computed using the marching-on-in-time (MOT) algorithm. The differentiated TD-EFIE has two problems: 1) the system matrix suffers from ill-conditioning when the time step increases (low frequency breakdown) and 2) it suffers from the DC instability, i.e., the formulation allows for the existence of spurious solenoidal currents that grow slowly in the solution. In this article, we show that 1) and 2) can be alleviated by leveraging quasi-Helmholtz projectors to separate the Helmholtz components of the induced current and rescale them independently. The efficacy of the approach is demonstrated by numerical examples including benchmarks and real-life applications.Numerical Analysi
“Dear Author": A Transparent SoTL Peer Review
No full textThis epistolary article is written as an extended SoTL peer review. It contains two sections: my preparatory work as peer reviewer and my actual review. In the first section, I remind myself of the function and processes of the SoTL peer review, what the author expects from a SoTL peer reviewer, and how I see my role as a peer reviewer in SoTL. In the second section, I write my review, focusing on three common feedback areas in SoTL: how the author brings in existing scholarship, how the author describes their SoTL project, and how the author demonstrates its importance. My review concludes with some advice for navigating the potentially conflicting reviews that are not unusual in SoTL
Performance of TD-DFT for Excited States of Open-Shell Transition Metal Compounds
No full textTime-dependent density functional theory (TD-DFT) has been very successful in accessing low-lying excited states of closed-shell systems. However, it is much less so for excited states of open-shell systems: unrestricted Kohn-Sham based TD-DFT (U-TD-DFT) often produces physically meaningless excited states due to heavy spin contaminations, whereas restricted Kohn-Sham based TD-DFT often misses those states of lower energies. A much better variant is the explicitly spin-adapted TD-DFT (X-TD-DFT) [J. Chem. Phys. 2011, 135, 194106] that can capture all the spin-adapted singly excited states yet without computational overhead over U-TD-DFT. While the superiority of X-TD-DFT over U-TD-DFT has been demonstrated for open-shell systems of main group elements, it remains to be seen if this is also the case for open-shell transition metal compounds. Taking as benchmark the results by MS-CASPT2 (multistate complete active space second-order perturbation theory) and ic-MRCISD (internally contracted multireference configuration interaction with singles and doubles), it is shown that X-TD-DFT is indeed superior to U-TD-DFT for the vertical excitation energies of ZnH, CdH, ScH2, YH2, YO, and NbO2. Admittedly, there exist a few cases where U-TD-DFT appears to be better than X-TD-DFT. However, this is due to a wrong reason: the underestimation (due to spin contamination) and the overestimation (due to either the exchange-correlation functional itself or the adiabatic approximation to the exchange-correlation kernel) happen to be compensated in the case of U-TD-DFT. As for [Cu(C6H6)(2)](2+), which goes beyond the capability of both MS-CASPT2 and ic-MRCISD, X-TD-DFT revises the U-TD-DFT assignment of the experimental spectrum.National Natural Science Foundation of China [21603134, 21673174, 21273011, 21290192]; Double First-class University Construction Project of Northwest UniversitySCI(E)ARTICLE203929-394212
Developing countries and the Uruguay Round : negotiations on services
No full textIn the late 1980s many developing countries experienced something of a pardigm shift: governments began to pursue more market-oriented domestic policies. There was an increasing perception that liberalizing access to service markets was a potentially low-cost, effective method for improving the quality and efficiency of domestic service sectors. These unilateral policy developments increased the incentives for developing countries as a group to participate in a multilateral agreement to liberalize trade in services. The author explores the extent to which the initial negotiating positions of developing countries are reflected in the draft General Agreement on Trade in Services (GATS) that has emerged from the Uruguay Round negotiations. He investigates whether the unilateral policy changes implemented by many developing countries in the late 1980s had a discernible impact on the draft GATS for developing countries. Many developing countries are pursuing regulatory reform and liberalization. To what extent will signing the GATS help governments trying to make their service sectors more efficient? Is the result of the defensive negotiating strategy that was pursued consistent with the shift toward a policy of liberalizing service markets? This issue is of particular relevance insofar as recent liberalization-plus-privatization programs in developing countries were driven by external forces rather than domestic pressure (industry) groups - which might reduce the credibility of liberalization policies. Membership in a binding multilateral agreement could help bolster reform efforts by increasing the costs of backsliding.Trade and Services,Poverty Assessment,TF054105-DONOR FUNDED OPERATION ADMINISTRATION FEE INCOME AND EXPENSE ACCOUNT,Governance Indicators,Rules of Origin
Pulsed Electromagnetic Field Signal Transfer Across a Thin Magneto-Dielectric Sheet
No full textClosed-form time-domain (TD) analytical expressions describing the electromagnetic (EM) signal transfer between two vertical dipoles through a thin, highly contrasting layer with combined magneto-dielectric properties are derived via the Cagniard–DeHoop (CdH) technique with the TD saltus-type conditions. The TD EM-field coupling between the antennas in the absence of the layer is discussed, including its near-field asymptotic solution. It is demonstrated both analytically and numerically that under certain circumstances the combined sheet behaves virtually as a transparent sheet the transition across which inverts the polarity of the received signal.Accepted author manuscriptElectrical Engineering Educatio
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