There are many instances in which human observers are the final judges of the quality of a compressed image. In such situations, it is useful to incorporate a model of the human visual system (HVS) into th e image compression system in order to reduce or even eliminate the visual distortions introduced to the reconstructed image. A compressed image is said to be perceptually lossless for a spec...

A mudança tecnológica é um fator determinante para garantir o crescimento sustentável do setor agropecuário no Brasil e mundo. Desde os anos 1970, tem conseguido ampliar a oferta de alimentos, contribuindo, assim, abastecimento dos mercados interno externo. Entre 1980 2021, produção grãos aumentou quase 400%. Nesse contexto, objetivo deste artigo foi calcular analisar produtividade total fatore...

We present a systematic analysis to determine and improve the pulsation periods of 1637 known long-period Mira variables in M33 using $gri$-band light curves spanning $\sim18$~years from several surveys, including variability survey, Panoramic Survey Telescope Rapid Response System, Palomar Transient Factory (PTF), intermediate PTF, Zwicky Facility. Based on these collections curves, we found t...

OBJECTIVE To test the usefulness and cost savings resulting from application of the new American College of Rheumatology (ACR) guidelines for assessing the risk for the development of clinically significant liver disease in rheumatoid arthritis (RA) patients treated with methotrexate (MTX). METHODS One-hundred twelve MTX-treated RA patients were prospectively followed up for MTX hepatotoxicit...

The unsaturated soil hydraulic functions involving the soil–water retention curve (SWRC) and the hydraulic conductivity provide useful integrated indices of soil quality. Existing and newly devised methods were used to formulate pedotransfer functions (PTFs) that predict the SWRC from readily available soil data. The PTFs were calibrated using a large soils database from Hungary. The database c...

One of the principal motivations of wide-field and synoptic surveys is the search for, and study of, transients. By transients I mean those sources that arise from the background, are detectable for some time, and then fade away to oblivion. Transients in distant galaxies need to be sufficiently bright as to be detectable, and in almost all cases those transients are catastrophic events, markin...

How does the brain integrate multiple sources of information to support normal sensorimotor and cognitive functions? To investigate this question we present an overall brain architecture (called "the dual intertwined rings architecture") that relates the functional specialization of cortical networks to their spatial distribution over the cerebral cortex (or "corticotopy"). Recent results sugge...

Radio frequency identification (RFID) is a technology enabling a contactless exchange of data. This technology features the possibility to wirelessly transfer power to the transponder (opponent). HF-RFID is used in mobile devices like smart phones and shows potential for applications like payment, identification, etc. Unfortunately, the needed functionality increases the battery drain of the de...

Alginat, polisakarida dari alga cokelat laut, banyak dimanfaatkan untuk antitumor, antiinflamasi, dan juga antivirus. Namun, alginat memiliki berat molekul yang besar membuatnya sulit dicerna oleh beberapa organsime. Oleh akrena itu, penting mencari enzim alginate lyase memotong secara enzimatis. Tujuan penelitian ini adalah mendapatkan isolat bakteri menghasilkan Sargassum polycystum. Isolasi ...

What are the most promising biobased PET replacements? Are they economically feasible? sustainable? Industrially In future, will certainly be replaced by more than one option, e.g. , PEF, PTF, bio-PET, and PLA.