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995 results for “Life cycle”
Supporting material: Prospective life-cycle assessment of sustainable alternatives for road freight transport
<p><span>This study investigates decarbonization pathways for the road freight transport sector</span><span> </span><span>by evaluating three alternatives to conventional</span><span> </span><span>diesel trucks:</span><span> </span><span>trucks powered by biofuels, battery electric trucks, and fuel cell trucks with hydrogen</span><span>. A prospective life cycle assessment of these options is conducted under two policy scenarios for decarbonization across 12 distinct regions over the century. Employing a cradle-to-grave approach, the assessment covers activities from fuel and electricity production to the end-of-life of truck components. Findings reveal that, in eight of the 12 regions examined, an early transition to battery electric trucks could increase life-cycle greenhouse gas emissions by up to 70% by 2030 compared to the continued use of conventional diesel trucks, underscoring the significance of liquid fuels for short to medium-term decarbonization. However, in the long term, as electricity mixes and hydrogen production are decarbonized, battery electric trucks and hydrogen fuel cell trucks emerge as superior alternatives in all regions, emitting, at least, 29% less greenhouse gases than trucks powered by biofuels, and 45% less than diesel trucks.</span><span> </span><span>The optimal transition from conventional diesel trucks to trucks powered by biofuels and, subsequently, to battery electric trucks and/or hydrogen could avoid 134-204 Gt CO<sub>2-eq</sub> worldwide and prevent a temperature rise of 0.22-0.33°C compared to the diesel-based scenario. This emphasizes the crucial role of appropriate policies for the timely transformation of the road freight transport sector. </span></p>
Archetype-based Life-Cycle Assessment of National Residential Building Stocks: Resource Use and Greenhouse Gas Emissions in Western Asia and Northern Africa
<p><strong>Dataset Name:</strong><br><em>Literature Data and Archetype Parameter Sheets for the publication, named Archetype-based Life-Cycle Assessment of National Residential Building Stocks: Resource Use and Greenhouse Gas Emissions in Western Asia and Northern Africa.</em></p> <p><strong>Description:</strong><br>This dataset includes Excel sheets containing literature sources and archetypal data on Western Asian and North African countries' residential dwelling typologies. As well as Vacancy rates used and simulation results.</p> <p><strong>Files:</strong><br>The following files are included in the dataset:</p> <ul> <li> <em>[CountryName]_LiteratureSources.xlsx:</em> Excel sheet containing literature sources and references,</li> <li> <em>[CountryName]_ArchetypeParameters.xlsx</em>: Archetype models' semantic, geometric, and technical data used in the generation of energy models,</li> <li><em> VacantHouses.xlsx</em>: Vacant house rates for the countries, the found articles on the web, literature sources, etc.,</li> <li> <em>Resource Use Results:</em> BuildME Simulation Results</li> </ul> <p><strong>Usage:</strong><br>The dataset is intended for researching and analyzing the Western Asian and North African countries' residential buildings. The literature sources included in the [CountryName]_LiteratureSources.xlsx and [CountryName]_ArchetypeParameters.xlsx files can be used to verify, support, or reproduce the research findings.</p> <p><strong>License:</strong><br>The dataset is licensed under Creative Commons Attribution 4.0 International.</p> <p><strong>Citation:</strong><br>If you use this dataset in your research, please cite it as follows and contact the corresponding author:</p> <p>Akin, Sahin, Aida Eghbali, Chibuikem Chrysogonus Nwagwu, and Edgar Hertwich. 2024. “Archetype-based Life-Cycle Assessment of National Residential Building Stocks: Resource Use and Greenhouse Gas Emissions in Western Asia and Northern Africa” https://doi.org/10.5281/zenodo.13380340.</p> <p><strong>Contact:</strong><br>The archetypes' energy models (DesignBuilder or IDF files) can be provided on request. If you have any questions or comments about the dataset, please contact <strong>sahin.akin@ntnu.no, the corresponding author.</strong></p>
Novel Endpoint Characterization Factors for Life Cycle Impact Assessment of Terrestrial Acidification
<p>This repository contains Excel files with the characterization factorsand the soil response factors for the publication entitled "Novel Endpoint Characterization Factors for Life Cycle Impact Assessment of Terrestrial Acidification", published in the "Journal of Ecological Indicators" .<br><br></p> <p>Content:</p> <p><strong>Datasets.zip</strong> is an folder containing the following Excel files: </p> <ul> <li><strong>CF_Terrestrial_Acidification_2024-08-01.xlsx</strong> with the following sheets <ul> <li><em>Dataframe</em> gathering terrestrial acidification marginal endpoint CF [PDF.yr/kg_emitted] values at country level (with the world average value), for 3 acidifying substances (NOx, NHx, SOx) at global and regional impact scales (with and without the inclusion of the Global Extinction Probability - GEP - respectively)</li> <li><em>Calc Info</em> summing up calculation informations</li> <li><em>Calc Table</em> registering input parameters used to run the calculations leading to the <em>Dataframe</em> sheet (substance used, original and adapted resolutions for emission and deposition compartments, resolutions for each CF components and spatial transformations, GEP normalization method)</li> </ul> </li> <li><strong>RF_NO3_2024-03-27.xlsx</strong> with the following sheet:<br> <ul> <li><em>RFs</em> containing the soil response values [(molH+ / L).(yr / kg_dep)] at ecoregion level (referred to as "idTarget") for a marginal increase of 10% in NO3 deposition rate. It also gathers the intermediate results leading the final RFs (sustances' deposition rates, reference and post-deposition increase pHs) </li> </ul> </li> <li><strong>RF_NH4_2024-03-25.xlsx</strong> with the following sheet:<br> <ul> <li><em>RFs</em> containing the soil response values [(molH+ / L).(yr / kg_dep)] at ecoregion level (referred to as "idTarget") for a marginal increase of 10% in NH4 deposition rate. It also gathers the intermediate results leading the final RFs (sustances' deposition rates, reference and post-deposition increase pHs)</li> </ul> </li> <li><strong>RF_SO4_2024-03-25.xlsx</strong> with the following sheet:<br> <ul> <li><em>RFs</em> containing the soil response values [(molH+ / L).(yr / kg_dep)] at ecoregion level (referred to as "idTarget") for a marginal increase of 10% in SO4 deposition rate. It also gathers the intermediate results leading the final RFs (sustances' deposition rates, reference and post-deposition increase pHs)</li> </ul> </li> </ul>
Earth System Model-based Life Cycle Assessment of Ocean Alkalinity Enhancement
<ol> <li>“Fig2data.xlsx”, “Fig5data.xlsx” and “Fig4data.xlsx” are the original data to create Fig.2, Fig.3 and Fig.5. The data are calculated from UVic results.</li> <li>“Fig4.txt” is the code to create Fig.4 by Pyferret from UVic results.</li> <li>“X.f” are the update codes in our UVic model.</li> </ol>
Figure 6 in The life-cycle of Hemigalichus chrotogale sp. nov. (Acari: Listrophoridae), with comparative observations on listrophorid morphology
Figure 6. Hemigalichus chrotogale sp. nov., heteromorphic male in dorsal view.
Figure 7 in Biology and life cycle of Tmetonyx similis (G. O. Sars, 1891) (Amphipoda, Lysianassidae), a scavenging amphipod from the continental slope of the Mediterranean
Figure 7. Development of the various male and female generations.
Figure 1 in Biology and life cycle of Tmetonyx similis (G. O. Sars, 1891) (Amphipoda, Lysianassidae), a scavenging amphipod from the continental slope of the Mediterranean
Figure 1. Sexual characteristic of a male. Calceoli on antennae 2 of a male.
Figure 5 in Biology and life cycle of Tmetonyx similis (G. O. Sars, 1891) (Amphipoda, Lysianassidae), a scavenging amphipod from the continental slope of the Mediterranean
Figure 5. Growth curve of Tmetonyx similis collected in Toulon Canyon: males and females.
Warming and shifting phenology accelerate an invasive plant life cycle
<p>Numerous studies have documented changes in the seasonal timing of organisms' growth and reproduction in response to climate warming. These changes correlate with documented changes in species' abundance, but mechanisms linking these trends remain elusive. We investigated the joint demographic effects of advanced reproductive phenology and warming on a globally invasive plant (<i>Carduus nutans</i>) in a field experiment, documenting a substantial shift toward completion of the life cycle at younger ages. Demographic modeling projected 71% of warmed individuals flower as annuals, compared to 61% under current conditions. As this species only reproduces once, this represents a major acceleration of the life cycle. We project a 15% increase in this invader's population growth rate. We show that rising temperatures accelerate this invasive species' population growth by increasing the average size of reproducing individuals; increasing the proportion of individuals that survive to reproduce; and increasing the fraction that reproduce as annuals. Major increases in population growth in this, and potentially many other, invasive species will threaten food security and require careful planning to avoid significant environmental and economic impacts.</p>
Figure 2 in The life cycle of Diploproctodaeum arothroni Bray and Nahhas, 1998 (Digenea: Lepocreadiidae), with a comment on the parasitic castration of its molluscan intermediate host
Figure 2. Fully gravid worm of Diploproctodaeum arothroni Bray and Nahhas, 1998. Scale bar: 500 Mm.
Life-Cycle Inventory (LCI) For the comparative Life-Cycle Assessment of a restoration and renovation of a traditional Danish farmer house
<p>This document provides the Life-Cycle Inventory of the study comparing the environmental performance of the restoration (Scenario 1, also mentioned as "S1") or renovation (Scenario 2, "S2") of a traditional Danish farmer house. The LCI is used as input for the life-cycle impact assessment phase in the LCA where the inputs and outputs of elementary flows in the LCI are characterized as potential impacts on the environment. The LCI is based on primary data from the "Apprentices' House" combined with secondary data from materials specific environmental product declaration and the large LCI database ecoinvent v3.</p> <p> </p> <p>The file contains several spreadsheets organized as follows:</p> <p>Thicknesses,S1 - Reports the materials and their corresponding thicknesses used for walls, ceilings, floors and insulation in S1</p> <p>Thicknesses, S1b - Reports the materials and their corresponding thicknesses used for walls, ceilings, floors and insulation in S1b</p> <p>Thicknesses, S1c - Reports the materials and their corresponding thicknesses used for walls, ceilings, floors and insulation in S1c</p> <p>Thicknesses, S2 - Reports the materials and their corresponding thicknesses used for walls, ceilings, floors and insulation in S2</p> <p>Surfaces - Reports the area of all surfaces of the house (walls, ceilings, floors) for all scenarios. </p> <p>Bill of materials - Sums up the list and quantity of all the materials used in all scenarios, providing details as to the quantity kept from the actual house, as well as the new input and output of materials during the restoration/renovation</p> <p>Heat loss, S1 - Provides details for the calculation of heat loss through the building envelope of the house in Scenario 1</p> <p>Heat loss, S1b - Provides details for the calculation of heat loss through the building envelope of the house in Scenario 1b</p> <p>Heat loss, S1c - Provides details for the calculation of heat loss through the building envelope of the house in Scenario 1c</p> <p>Heat loss, S2 - Provides details for the calculation of heat loss through the building envelope of the house in Scenario 2</p> <p>Parameters - Describes the main parameters used in the LCI and their corresponding uncertainty</p> <p>LCI Materials - Provides the full breakdown of the processes created and used for the LCI modelling on OpenLCA</p> <p>LCI Building - Provides the full breakdown of the processes created and used for the LCI modelling on OpenLCA</p>
Modeling cyanobacteria life cycle dynamics and historical nitrogen fixation in the Baltic Proper - Datasets
<p>Observational and model datasets used in: Modeling cyanobacteria life cycle dynamics and historical nitrogen fixation in the Baltic Proper.</p>
Cocoa life cycle - timeline
<p>Schematic drawing of the growth cycle of a cocoa plant from seed to fruit</p>
Supporting Information - Fabbri et al. 2022 - Evaluation of sugar feedstocks for bio-based chemicals: A consequential, regionalized life cycle assessment
<p>The supporting information of the journal article "Evaluation of sugar feedstocks for bio-based chemicals: A consequential, regionalized life cycle assessment" from Fabbri et al. (2022) includes one file with the following content:</p> <p>S1 Details of consequential modelling: feedstock<br> S1.1 Identification type of changes (demand or supply)<br> S1.2 Identification of constrains in the market<br> S1.3 Identification of product substitutions<br> S1.4 Identification of affected production technology<br> S1.5 Identification of marginal crop and marginal supplier<br> S2 Details of consequential modelling: by-products<br> S3 Model parameters and unit processes<br> S3.1 Sugar beet<br> S3.2 Sugar cane<br> S3.3 Wheat<br> S3.4 Maize<br> S3.5 Wood<br> S3.6 Residual woodchips and sawdust<br> S4 Review of land use change accounting methods<br> S4.1 Direct land use change (dLUC)<br> S4.2. Indirect land use change (iLUC)<br> S5 Additional results<br> S5.1 Influence of spatial differentiation in LCIA<br> S5.2 Influence of indirect land use change (iLUC)<br> S6 References</p>
A polar insect's tale: observations on the life cycle of Parochlus steinenii, the only winged midge native to Antarctica
<p><span>Antarctica and the sub-Antarctic islands are considered natural laboratories to study and understand the influence of environmental variable and patterns of variation therein on the biota, including the influences of climate change. The Antarctic terrestrial fauna consists only of small invertebrates, with just two native species of holometabolous insects, Parochlus steinenii and Belgica antarctica, and two established non-native species, Eretmoptera murphyi and Trichocera maculipennis. Studies of the life history, phenology and stress tolerances of insects are critical to better understand adaptations to natural environmental stress and the ecological consequences of recent and ongoing climate change. In this context, we characterized the habitat preferences, life cycle and phenology of P. steinenii, the winged Antarctic midge, in a lake on King George Island, South Shetland Islands, maritime Antarctic. Based on the data obtained, we hypothesize that P. steinenii has a multi-year life cycle that may span as much as four years. The species is very restricted in terms of its preferred microhabitat distribution, being highly abundant only at shallow depths close to the edge of the lakes in which it is found. A combination of further field and laboratory studies are now required to assess how the length of P. steinenii life cycle is influenced by the scale of temperature variation typically experienced in its natural habitat, and as predicted under different climate change scenarios, as well investigating the ability and timing of larval movement to take advantage of the conditions of specific microhabitats at different times of year.</span></p>
Life Cycle Costing Video
<p>A set of explanatory videos was produced about sustainability analysis within the project, including Environmental Life Cycle Assessment, Social Life Cycle Assessment, and Life Cycle Costing. These informational videos were primarily produced for the International School on Water Reuse held at the Chemistry Department of the Torino University in Italy in late September 2022, but they were also placed on the project website and circulated on social media.</p>
Social Life Cycle Assessment Video
<p>A set of explanatory videos was produced about sustainability analysis within the project, including Environmental Life Cycle Assessment, Social Life Cycle Assessment, and Life Cycle Costing. These informational videos were primarily produced for the International School on Water Reuse held at the Chemistry Department of the Torino University in Italy in late September 2022, but they were also placed on the project website and circulated on social media.</p>
Environmental Life Cycle Assessment Video
<p>A set of explanatory videos was produced about sustainability analysis within the project, including Environmental Life Cycle Assessment, Social Life Cycle Assessment, and Life Cycle Costing. These informational videos were primarily produced for the International School on Water Reuse held at the Chemistry Department of the Torino University in Italy in late September 2022, but they were also placed on the project website and circulated on social media.</p>
Complex life cycles drive community assembly through immigration and adaptive diversification
<p>Most animals undergo ontogentic niche shifts during their life. Yet, standard ecological theory builds on models that ignore this complexity. Here, we study how complex life cycles, where juvenile and adult individuals each feed on different sets of resources, affect community richness. Two different modes of community assembly are considered: gradual adaptive evolution and immigration of new species with randomly selected phenotypes. We find that under gradual evolution complex life cycles can lead to both higher and lower species richness when compared to a model of species with simple life cycles that lack an ontogenetic niche shift. Thus, complex life cycles do not per se increase the scope for gradual adaptive diversification. However, complex life cycles can lead to significantly higher species richness when communities are assembled through immigration, as immigrants can occupy isolated peaks of the dynamic fitness landscape that are not accessible via gradual evolution.</p>
Data from: Interactions between fitness components across the life cycle constrain competitor coexistence
<p><span>Numerous mechanisms can promote competitor coexistence. Yet, these mechanisms are often considered in isolation of one another. Consequently, whether multiple mechanisms shaping coexistence combine to promote or constrain species coexistence remains an open question. </span><span>Here, we aim to understand how multiple mechanisms interact within and between life stages to determine frequency-dependent population growth, which has a key role stabilizing local competitor coexistence. </span><span>We conducted field experiments in three lakes manipulating relative frequencies of two <em>Enallagma</em> damselfly species to evaluate demographic contributions of three mechanisms affecting different fitness components across the life cycle: the effect of resource competition on individual growth rate, predation shaping mortality rates, and mating harassment determining fecundity. We then used a demographic model that incorporates carry-over effects between life stages to decompose the relative effect of each fitness component generating frequency-dependent population growth. </span><span>This decomposition showed that fitness components combined to increase population growth rates for one species when rare, but they combined to decrease population growth rates for the other species when rare, leading to predicted exclusion in most lakes. </span>Because interactions between fitness components within and between life stages vary among populations, these results show that local coexistence is population specific. Moreover, we show that multiple mechanisms do not necessarily increase competitor coexistence, as they can also combine to yield exclusion. Identifying coexistence mechanisms in other systems will require greater focus on determining contributions of different fitness components across the life cycle shaping competitor coexistence in a way that captures the potential for population level variation.</p>
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.