The design of a Space-borne multispectral canopy LiDAR to estimate global carbon stock and gross primary productivity

Understanding the dynamics of the global carbon cycle is one of the most challenging issues for the scientific community. The ability to measure the magnitude of terrestrial carbon sinks as well as monitoring the short and long term changes is vital for environmental decision making. Forests form a significant part of the terrestrial biosystem and understanding the global carbon cycle, Above Ground Biomass (AGB) and Gross Primary Productivity (GPP) are critical parameters. Current estimates of AGB and GPP are not adequate to support models of the global carbon cycle and more accurate estimates would improve predictions of the future and estimates of the likely behaviour of these sinks. Various vegetation indices have been proposed for the characterisation of forests including canopy height, canopy area, Normalised Difference Vegetation Index (NDVI) and Photochemical Reflectance Index (PRI). Both NDVI and PRI are obtained from a measure of reflectivity at specific wavelengths and have been estimated from passive measurements. The use of multi-spectral LiDAR to measure NDVI and PRI and their vertical distribution within the forest represents a significant improvement over current techniques. This paper describes an approach to the design of an advanced Multi-Spectral Canopy LiDAR, using four wavelengths for measuring the vertical profile of the canopy simultaneously. It is proposed that the instrument be placed on a satellite orbiting the Earth on a sun synchronous polar orbit to provide samples on a rectangular grid at an approximate separation of 1km with a suitable revisit frequency. The systems engineering concept design will be presented

What the hack is a hacker?

The purpose of this study is to examine the historical tendencies and characteristics of hackers to create a holistic definition of what it means to be a hacker. By analyzing the contents of the “Hacker Classics” list, it was determined that there is not a single, all-encompassing definition of what it means to be a hacker. Although there are common motivations and ideologies shared between many hackers, the definition of “hacker” continues to change as time and technology does

Increased permeability of the malaria-infected erythrocyte to organic cations

AbstractThe human malaria parasite, Plasmodium falciparum, induces in the plasma membrane of its host red blood cell new permeation pathways (NPP) that allow the influx of a variety of low molecular weight solutes. In this study we have demonstrated that the NPP confer upon the parasitised erythrocyte a substantial permeability to a range of monovalent organic (quaternary ammonium) cations, the largest having an estimated minimum cross-sectional diameter of 11–12 Å. The rate of permeation of these cations showed a marked dependence on the nature of the anion present, increasing with the lyotropicity of the anion. There was no clear relationship between the permeation rate and either the size or the hydrophobicity of these solutes. However, the data were consistent with the rate of permeation being influenced by a combination of these two factors, with the pathways showing a marked preference for the relatively small and hydrophobic phenyltrimethylammonium ion over larger or less hydrophobic solutes. Large quaternary ammonium cations inhibited flux via the NPP, as did long-chain n-alkanols. For both classes of compound the inhibitory potency increased with the size and hydrophobicity of the solute. This study extends the range of solutes known to permeate the NPP of malaria-infected erythrocytes as well as providing some insight into the factors governing the rate of permeation

Kitchenware Development: Strategizing blind user-designer experience design activities

Concept Development from research, the blind relies heavily on sensory references like touch to make a spatial judgment – the lack of such often results in accidents. Thus, the solutions physicalize tactile cues, which they can rely on for the next step in the cooking process. Existing solutions in the market are often function-focused, with little attention paid to usability. Product utility is foreign and unnatural to the blind as it contrasts with their prior memory of performing a task. Therefore, this research study is to strategize the Blind User-Designer experience through design activities. Keywords: Blind-User; Kitchenware, User Experience; Design Activities eISSN: 2398-4287 © 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under the responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians), and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v7iSI7.378

Étude exploratoire des profils motivationnels de jeunes adultes violents au sein de leur couple

Les jeunes adultes commettent plus souvent des conduites violentes au sein de leur couple que les adultes plus âgés. Le but de cette étude est de proposer une classification de jeunes adultes violents au sein de leur couple à l’aide de variables motivationnelles et d’évaluer la validité discriminante des profils au niveau de variables liées à la violence psychologique et physique et de comparer les profils motivationnels à un groupe de jeunes adultes non violent. Les 457 participants de cette étude sont des jeunes adultes de la population générale provenant de la région de Québec et de Montréal. L’analyse de classification two-step cluster à permis de trouver trois profils distincts : (1) le réactif (2) le commun et (3) l’hostile. Les analyses comparatives démontrent que les réactifs sont ceux qui commettent le plus d’actes de violence physique différents, que les communs sont les moins violents, les moins en détresse et perçoivent l’impact de leur violence moins négativement et que les hostiles sont ceux qui sont les plus violents, les plus en détresse et perçoivent l’impact de leur violence plus négativement. Les individus non violents sont significativement moins en détresse et consomment moins d’alcool que tous les profils violents. Les résultats serviront à obtenir une meilleure compréhension des individus violents, à améliorer le dépistage des individus les plus à risque de recourir à la violence au sein de leur couple et d’effectuer de la prévention en les sensibilisant aux caractéristiques des individus violents.Young adults exhibit violent behavior within their relationships more frequently than do older adults. The goal of this study, using motivational variables, is to propose a classification of young adults who perpetrate relationship violence and assess the discriminant validity of profiles in terms of variables linked to psychological and physical aggression and compare the motivational profiles to those of non-violent young adults. The 457 participants in this study are young adults from the general population in the Quebec City and Montreal areas. Classification based on a two-step cluster analysis resulted in three distinct profiles: (1) reactive, (2) common and (3) hostile. Comparative analyses suggest that those with a reactive profile engage in the greatest number of different acts of aggression, those with a common profile are the least violent, the least distressed and perceive the impact of their violence less negatively, whereas those with a hostile profile are the most violent, they experience the greatest distress and perceive the impact of their aggression most negatively. Non-violent individuals are significantly less distressed and consume less alcohol than all those with violent profiles. Findings will lead to a better understanding of violent individuals as well as improve detection of individuals who are most likely to resort to relationship violence and prevent this by raising awareness of the characteristics of violent individuals

Neuroplasticity and the Auditory System

This chapter will present information on the central auditory nervous system with a special focus in the auditory pathways. The intrinsic and extrinsic aspects of neuroplasticity will be described, and the neuroplasticity of the auditory system will be presented in detail. These topics are the basis of the auditory training (AT) program for central auditory processing disorders

Conceptualizing D-Honeycomb Artificial Coral Reef Structure (DHARS) through Stoneware Ceramic Artwork

The Artificial Reef Structure D-Honeycomb (DHARS) is a study that reflects the design needs of natural coral reefs. It focuses on ceramic material (stoneware) that can invertebrate, penetrate and grow on natural corals. It will theoretically allow corals to bounce back faster with the structural analysis of Dual-Honeycomb. Overall, DHARS offers simple, effective and inexpensive design structures for artificial coral reefs that are important for the underwater environment and remote island communities where they need them for their habitat. Keywords: Stoneware ceramic; Artificial Coral Reef; Honeycomb eISSN: 2398-4287 © 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under the responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians), and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v7iSI7.377

Hubungan Status Sosial Ekonomi Orangtua Dengan Motivasi Belajar Pada Mahasiswa Angkatan 2013 Fakultas Kedokteran Universitas Sam Ratulangi

: Learning is a process that can not be separated from human life. Psychic impulse to learn is the motivation to learn. In the learning process, parents are among the factors that have a role. This study aims to determine the relationship of socio-economic status of parents with students' learning motivation. Data were collected through questionnaires. The results showed there was no correlation between socio-economic status of parents with learning motivation of Medicine Faculty Sam Ratulangi University class of 2013 students p = 0.444 (p > 0.05) and the correlation value is -0.062. It can be concluded that there was no correlation between socioeconomic status of parents with students' learning motivation