3,040 research outputs found
Hemp´s potential implication as a sustainable material in building and construction business
No full textV diplomskem delu je predstavljena analiza uporabe industrijske konoplje kot trajnostnega gradbenega materiala. Cilj naloge je bil raziskati potencial konoplje v gradbeništvu, oceniti njene okoljske in ekonomske učinke ter analizirati njeno konkurenčnost v primerjavi s konvencionalnimi materiali. Poleg tega je bil namen tudi ovrednotiti, kako lahko konoplja prispeva k doseganju trajnostnih ciljev in prehodu v krožno gospodarstvo.
V prvem delu naloge smo predstavili industrijsko konopljo kot rastlino, njene značilnosti in prednosti za uporabo v gradbeništvu. Konoplja je zaradi svoje hitre rasti, nizkih zahtev po pesticidih in izjemne sposobnosti zajemanja ogljikovega dioksida prepoznana, kot eden izmed najperspektivnejših materialov za trajnostno gradnjo. Posebna pozornost je bila namenjena konopljinemu betonu, ki se uporablja kot izolacijski in strukturni material. Njegove lastnosti, kot so dobra toplotna in zvočna izolacija, odpornost na ogenj in plesen, ter nizka gostota, so lastnosti ki vplivajo, da je energetsko učinkovit material, kar pomeni da pripomore k zmanjšanju porabe energije pri njegovi uporabi, ne da bi pri tem ogrožal delovanje ali udobje. Tak material ponuja visoko zmogljivost v kontekstu izolacije, bodisi toplotne bodisi zvočne.
V primerjavi z drugimi zelenimi materiali, kot so slama, les in glina, konoplja izstopa po svoji izjemni vsestranskosti, obnovljivosti in ekoloških prednostih, zlasti pri izboljševanju kakovosti tal, na katerih raste. Kljub tem nedvomnim prednostim pa se sooča z izzivi, kot so zakonodajne omejitve in omejena dostopnost na trgu, kar zavira njeno širšo uporabo. V nadaljevanju smo analizirali primere uporabe konopljinega betona, kjer se je izkazalo, da ta material pomembno prispeva k zmanjšanju okoljskih obremenitev, izboljšanju bivalnega udobja ter podaljšanju življenjske dobe stavb. Kljub spodbudnim rezultatom pa je jasno, da so potrebne nadaljnje raziskave, predvsem na področju dolgotrajne obstojnosti in ekonomske upravičenosti uporabe konopljinega betona.
Sklep naloge potrjuje, da ima industrijska konoplja velik potencial za trajnostni razvoj gradbeništva, vendar je za njeno širšo implementacijo potrebno preseči regulativne ovire in povečati ozaveščenost o njenih prednostih. Konoplja ima edinstveno priložnost, da postane ključni material v prehodu k trajnostni gradnji, vendar bo to mogoče le z nadaljnjimi raziskavami in inovacijami.This thesis presents an analysis of the use of industrial hemp as a sustainable building material. The aim of the thesis was to explore the potential of hemp in construction, to assess its environmental and economic impacts and to analyse its competitiveness compared to conventional materials. In addition, the aim was to evaluate how hemp can contribute to achieving sustainability goals and the transition towards a circular economy.
In the first part of the thesis, we presented industrial hemp as a plant, its characteristics and its advantages for use in the construction industry. Hemp is recognised as one of the most promising materials for sustainable construction due to its fast growth, low pesticide requirements and exceptional carbon sequestration capacity. Particular attention has been paid to hempcrete, which is used as an insulating and structural material. Its properties such as good thermal and acoustic insulation, resistance to fire and mould, and low density, are characteristics that make it an energy efficient material, meaning that it helps to reduce energy consumption in its use without compromising performance or comfort. Such material offers high performance in the context of insulation, either thermal or acoustic.
Compared to other green materials such as straw, wood and clay, hemp stands out for its exceptional versatility, its renewability and its ecological advantages, particularly in improving the quality of the soil on which it grows. Despite these undoubted advantages, it faces challenges such as regulatory constraints and limited market availability, which inhibit its wider use. In the following, we analyse examples of the use of hempcrete where it has been shown to make a significant contribution to reducing environmental burdens, improving living comfort and extending the lifetime of buildings. Despite the encouraging results, it is clear that further research is needed, especially in the area of long-term durability and economic viability of hempcrete.
The conclusion of the thesis confirms that industrial hemp has a great potential for sustainable development of the construction industry, but that its wider implementation requires overcoming regulatory barriers and raising awareness of its benefits. Hemp has a unique opportunity to become a key material in the transition towards sustainable construction, but this will only be possible with further research and innovation
Contrasting activity profile of two distributed cortical networks as a function of attentional demands
No full textThe original publication is available at http://www.jneurosci.orgThis work was supported by R01 grant MH-073610 from the National Institutes of Health to Denis Paré
Is Tolerance Political? An Interview with Denis Lacorne
No full textcontribution à un site webDenis Lacorne is the author of "The Limits of Tolerance. Enlightenment Values and Religious Fanaticism" (Columbia University Press, 2019), the English translation of "Les limites de la tolérance" (Gallimard, awarded the Prix Montyon by the Académie Française). In his book, which is intellectually very inspiring because of the many questions it addresses and raises, Denis Lacorne traces the emergence of the notion of tolerance from its early thinkers to the Age of Enlightenment and finally questions the notion and its various understandings through more recent events in France and the United States. What is tolerance? Is tolerance political? Interview by Miriam Périer, CER
Timing of impulses from the central amygdala and bed nucleus of the stria terminalis to the brainstem
No full textThe amygdala and bed nucleus of the stria terminalis (BNST) are thought to subserve distinct functions with the former mediating rapid fear responses to discrete sensory cues and the latter longer “anxiety-like” states in response to diffuse environmental contingencies. Yet, these structures are reciprocally connected and their projection sites overlap extensively. To shed light on the significance of BNST-amygdala connections, we compared the antidromic response latencies of BNST and central amygdala (CE) neurons to brainstem stimulation. Whereas the frequency distribution of latencies was unimodal in BNST neurons (~10 ms mode), that of CE neurons was bimodal (~10 and ~30 ms modes). However, after stria terminalis (ST) lesions, only short-latency antidromic responses were observed, suggesting that CE axons with long conduction times course through the ST. Compared to the direct route, the ST greatly lengthens the path of CE axons to the brainstem, an apparently disadvantageous arrangement. Since BNST and CE share major excitatory basolateral amygdala (BL) inputs, lengthening the path of CE axons might allow synchronization of BNST and CE impulses to brainstem when activated by BL. To test this, we applied electrical BL stimuli and compared orthodromic response latencies in CE and BNST neurons. The latency difference between CE and BNST neurons to BL stimuli approximated that seen between the antidromic responses of BNST cells and CE neurons with long-conduction times. These results point to a hitherto unsuspected level of temporal coordination between the inputs and outputs of CE and BNST neurons, supporting the idea of shared functions.The original publication is available at: http://jn.physiology.org/cgi/content/full/100/6/342
Rehab Depot de la Plaine Saint-Denis
No full textRedesign for workshop Atelier Revision Intermediaire at the Depot de la Plaine Saint-Denis with a rehabilitation center as new functionRMITArchitecture and The Built Environmen
Severini e Denis
No full textL'A. prende in esame i controversi rapporti tra i due artisti, nel primo decennio del secolo e, più tardi, nella produzione di carattere religioso. Severini risulta influenzato da Denis più di quanto sostenga negli scritti teorici. The Author examines the controversial relationships between the two artists, in the first decade of the century and later on, in their religious production. Severini appears influenced by Denis more than he declares in his theoretic writings
The bed nucleus of the stria terminalis mediates inter-individual variations in anxiety and fear
No full textWhile learning to fear stimuli that predict danger promotes survival, the inability to inhibit fear to inappropriate cues leads to a pernicious cycle of avoidance behaviors. Previous studies have revealed large inter-individual variations in fear responding with clinically anxious humans exhibiting a tendency to generalize learned fear to safe stimuli or situations. To shed light on the origin of these inter-individual variations, we subjected rats to a differential auditory fear conditioning paradigm where one conditioned auditory stimulus (CS+) was paired to footshocks whereas a second (CS-) was not. We compared the behavior of rats that received pre-training excitotoxic lesions of the bed nucleus of the stria terminalis (BNST) to that of sham rats. Sham rats exhibit a continuum of anxious/fearful behaviors. At one end of the continuum were rats that displayed a poor ability to discriminate between the CS+ and CS-, high contextual freezing, and an anxiety-like trait in the elevated plus maze (EPM). At the other end were rats that display less fear generalization to the CS-, lower freezing to context, and a non-anxious trait on the EPM. Although BNST-lesioned rats acquired similarly high levels of conditioned fear to the CS+, they froze less than sham rats to the CS-. In fact, BNST-lesioned rats behaved like sham rats with high discriminative abilities in that they exhibited low contextual fear and a nonanxious phenotype in the EPM. Overall, this suggests that inter-individual variations in fear generalization and anxiety phenotype are determined by BNST influences on the amygdala and/or its targets.Published in Journal of Neuroscience. Copyright Society for Neuroscience.Available from the Journal of Neuroscience: http://www.jneurosci.org
Theta synchronizes the activity of medial prefrontal neurons during learning
No full textCopyright, Learning & Memory Online by Cold Spring Harbor Laboratory Press http://www.learnmem.org/This material is based upon work supported by NIMH grant R01MH-073610.The published version of this article is online at http://www.learnmem.org/cgi/doi/10.1101/lm.93240
Amygdala intercalated neurons are required for expression of fear extinction
No full textHere we test the hypothesis that ITC neurons mediate extinction by lesioning them with a toxin that selectively targets cells expressing micro-opioid receptors (microORs).This is the author's version of an accepted paper for Nature. The published article can be found at the journal's web site: http://www.nature.com/nature
Religion in America: a Political History
No full textA Conversation with Denis Lacorne, Author of Religion in America (...)
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