cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5668906
title: Adoption of environmental practices on construction sites

description: Abstract Sustainability on construction sites and its impacts on the environment have become increasingly relevant. Large quantities of materials, water and energy, among other resources of various types and origins, are consumed on construction sites during the production activities and by the temporary facilities. This paper aims at presenting a set of criteria for the adoption of sustainable management practices on construction sites aiming at mitigating environmental impacts produced during the construction phase. An in-depth case study was carried out on the new building of the Construction Chamber for the state of Bahia, Brazil. Different environmental impacts for each construction activity specific to the construction site were studied and an economic feasibility study of each solution was performed, followed by the implementation of these practices. Monitoring data was collected through checklists, indicators and periodic project management meetings. Participant observation and document analysis were also used as sources of evidence. The main findings refer to the identification of solutions, main difficulties in adopting such solutions, the development of indicators for monitoring low environmental impact on construction sites, as well as a set of recommendations for the deployment of sustainable practices on construction sites.
DOI: 10.6084/m9.figshare.5668906.v1
title: Adoption of environmental practices on construction sites

description: Abstract Sustainability on construction sites and its impacts on the environment have become increasingly relevant. Large quantities of materials, water and energy, among other resources of various types and origins, are consumed on construction sites during the production activities and by the temporary facilities. This paper aims at presenting a set of criteria for the adoption of sustainable management practices on construction sites aiming at mitigating environmental impacts produced during the construction phase. An in-depth case study was carried out on the new building of the Construction Chamber for the state of Bahia, Brazil. Different environmental impacts for each construction activity specific to the construction site were studied and an economic feasibility study of each solution was performed, followed by the implementation of these practices. Monitoring data was collected through checklists, indicators and periodic project management meetings. Participant observation and document analysis were also used as sources of evidence. The main findings refer to the identification of solutions, main difficulties in adopting such solutions, the development of indicators for monitoring low environmental impact on construction sites, as well as a set of recommendations for the deployment of sustainable practices on construction sites.
DOI: 10.7916/d8-x8gh-ms26
title:  GRID3 Senegal Settlement Extents Version 01, Alpha

description: NOTE: This initial version of the Senegal settlement extents has been superseded by the final version, "GRID3 Senegal Settlement Extents, Version 01", now available here: https://doi.org/10.7916/d8-ndpa-pd26 The database constitutes a comprehensive set of settlement polygons nationwide. It is in geodatabase format and consists of three feature classes for built up areas (BUA), small settlement areas (SSA), and hamlets (hamlets). This work has been undertaken as part of the Geo-referenced Infrastructure and Demographic Data for Development (GRID3) initiative. GRID3 works with countries to generate, validate and use geospatial data on population, settlements, infrastructure, and subnational boundaries. For more information, see https://grid3.org/ Keywords: built up areas, BUA, small settlement areas, SSA, hamlets, settlement aggregation, settlement extent, CIESIN, GRID3, Novel-T
DOI: 10.6084/m9.figshare.5666455
title: Adopting new construction systems to reduce the use of resources in construction sites: Light Steel Framing

description: Abstract Adopting new technologies in construction systems may lead to considerable reductions in the use of resources and operations in construction sites, such as less production labour, a decrease in material waste, improvements in logistics, a reduction in water consumption and less time spent on construction. In this context, Light Steel Framing (LSF) is considered a process with great potential when used as a façade system, mainly in multi-storey buildings, replacing the traditional method, which uses brick block masonry and external plaster. The aim of this research is to compare LSF with the traditional façade system quantitatively, considering labour, material waste, water consumption and construction time, using four cases studies in two countries (Brazil and Germany), which consider housing projects. The main contributions of this study are related to labour consumption rates when using LSF, obtained from case studies, as well as their potential advantages when compared with the traditional system.
DOI: 10.6084/m9.figshare.5666455.v1
title: Adopting new construction systems to reduce the use of resources in construction sites: Light Steel Framing

description: Abstract Adopting new technologies in construction systems may lead to considerable reductions in the use of resources and operations in construction sites, such as less production labour, a decrease in material waste, improvements in logistics, a reduction in water consumption and less time spent on construction. In this context, Light Steel Framing (LSF) is considered a process with great potential when used as a façade system, mainly in multi-storey buildings, replacing the traditional method, which uses brick block masonry and external plaster. The aim of this research is to compare LSF with the traditional façade system quantitatively, considering labour, material waste, water consumption and construction time, using four cases studies in two countries (Brazil and Germany), which consider housing projects. The main contributions of this study are related to labour consumption rates when using LSF, obtained from case studies, as well as their potential advantages when compared with the traditional system.
DOI: 10.17632/mb762cs2bb.1
title: Data for ‘‘The Mutare and Fingeren dyke swarms and the enigma of the Kalahari Craton’s exit from supercontinent Rodinia”.

description: Data for ‘‘The Mutare and Fingeren dyke swarms and the enigma of the Kalahari Craton’s exit from supercontinent Rodinia”.
DOI: 10.6084/m9.figshare.5666320
title: Resilience skills used by front-line workers to assemble precast concrete structures: an exploratory study

description: Abstract Besides increasing productivity, prefabricated building systems can also contribute to the reduction of the levels of risk exposure by workers. However, there are several hazards that can be faced by workers involved in the assembly of prefabricated components, such as being struck by objects during lifting and handling of large components, and falls from height. This paper is focused on the assembly process of precast concrete building systems, widely used in Brazil. It is uses the Resilience Engineering theoretical framework, which has been pointed out as the new paradigm to manage health and safety, being concerned with the abilities of a system to adjust its functioning prior to, during, or following changes and disturbances, so that it can sustain required operations under unexpected conditions. The aim of this paper is to propose guidelines to design preventive measures, based on the identification of resilient skills used by front-line workers involved in the process of assembling precast concrete structures. Those skills were identified in a case study carried out in a construction site in Brazil, in which some critical assembly processes were analyzed at a fine level of detail.
DOI: 10.6084/m9.figshare.5666320.v1
title: Resilience skills used by front-line workers to assemble precast concrete structures: an exploratory study

description: Abstract Besides increasing productivity, prefabricated building systems can also contribute to the reduction of the levels of risk exposure by workers. However, there are several hazards that can be faced by workers involved in the assembly of prefabricated components, such as being struck by objects during lifting and handling of large components, and falls from height. This paper is focused on the assembly process of precast concrete building systems, widely used in Brazil. It is uses the Resilience Engineering theoretical framework, which has been pointed out as the new paradigm to manage health and safety, being concerned with the abilities of a system to adjust its functioning prior to, during, or following changes and disturbances, so that it can sustain required operations under unexpected conditions. The aim of this paper is to propose guidelines to design preventive measures, based on the identification of resilient skills used by front-line workers involved in the process of assembling precast concrete structures. Those skills were identified in a case study carried out in a construction site in Brazil, in which some critical assembly processes were analyzed at a fine level of detail.
DOI: 10.6084/m9.figshare.5666461
title: Controlling work using RFID: monitoring and control system for safety equipment at construction sites

description: Abstract Information and Communication Technology (ICT) applied to the construction supply chain plays an important role, particularly when managing security equipment, whose conventional control practices have shown limited efficiency. Therefore, the aim of this study is to develop a monitoring and control system for the remote monitoring of security equipment using Radio Frequency Identification (RFID) technology administered by software, which was also developed in this research called: Controlling work using RFID. The testing routine combined laboratory testing for hosting and system validation and testing at a construction site for system verification in a real building environment. The model proved to be efficient in terms of identifying and locating equipment by indicating its position in plant images. The model also provided graphical reports showing the characteristics of each piece of equipment presenting the following data: name, construction, location, brand, material, state of conservation, review forecast and person in charge. The introduction of ICT to develop tools, such as the system proposed in this study, helps advance the intelligent management of safety equipment at construction sites.
DOI: 10.6084/m9.figshare.5666461.v1
title: Controlling work using RFID: monitoring and control system for safety equipment at construction sites

description: Abstract Information and Communication Technology (ICT) applied to the construction supply chain plays an important role, particularly when managing security equipment, whose conventional control practices have shown limited efficiency. Therefore, the aim of this study is to develop a monitoring and control system for the remote monitoring of security equipment using Radio Frequency Identification (RFID) technology administered by software, which was also developed in this research called: Controlling work using RFID. The testing routine combined laboratory testing for hosting and system validation and testing at a construction site for system verification in a real building environment. The model proved to be efficient in terms of identifying and locating equipment by indicating its position in plant images. The model also provided graphical reports showing the characteristics of each piece of equipment presenting the following data: name, construction, location, brand, material, state of conservation, review forecast and person in charge. The introduction of ICT to develop tools, such as the system proposed in this study, helps advance the intelligent management of safety equipment at construction sites.
DOI: 10.6084/m9.figshare.5669275
title: Water and energy consumption in construction sites: a case study from diagnosis to actions aiming at sustainability

description: Abstract Sustainable development presents a number of challenges for the construction industry. Among them are reaching higher levels of quality and efficiency in its production processes and the consumption of natural resources. The aim of this paper is to present an analysis of the energy and water consumption during the construction phase of buildings, showing measures that can be adopted in the production process in order to reduce resources and improve the process performance. This research was carried out in six construction sites in the city of Passo Fundo-RS, monitoring the monthly consumptions over 5 years. As results, economic, technological and social actions are proposed to improve these indicators. The results show that continuous monitoring and management of water and energy consumption in the construction sites is necessary. Suggested actions include commitment from the company's management to efficiently use the resources in the construction sites.
DOI: 10.6084/m9.figshare.5669275.v1
title: Water and energy consumption in construction sites: a case study from diagnosis to actions aiming at sustainability

description: Abstract Sustainable development presents a number of challenges for the construction industry. Among them are reaching higher levels of quality and efficiency in its production processes and the consumption of natural resources. The aim of this paper is to present an analysis of the energy and water consumption during the construction phase of buildings, showing measures that can be adopted in the production process in order to reduce resources and improve the process performance. This research was carried out in six construction sites in the city of Passo Fundo-RS, monitoring the monthly consumptions over 5 years. As results, economic, technological and social actions are proposed to improve these indicators. The results show that continuous monitoring and management of water and energy consumption in the construction sites is necessary. Suggested actions include commitment from the company's management to efficiently use the resources in the construction sites.
DOI: 10.6084/m9.figshare.5666350
title: CO2 emissions related to building materials transportation in Brazil: comparative study on structural ceramic and concrete bricks

description: Abstract The CO2 Emission Life Cycle Assessment (CO2LCA) of a product involves quantifying CO2 emissions in the pre-use, use and end-of-life stages. The pre-use stage involves industry, execution and transportation stages. The aim of this paper is to study CO2 emissions of ceramic and concrete bricks, based on data collection of emissions in the industry and transportation stages, evaluating the impact of the transportation stage of these materials in 26 Brazilian capitals. Therefore, research was carried out in manufacturing companies classified in the "Brazilian Sectoral Quality Program". The transportation distances from the industries to the capitals were analysed using Google Maps. The results have shown that the capitals located in the North and Southeast regions presented the highest and lowest emission values related to transportation for both types of bricks, respectively. The contribution of the transportation phase, related to total emissions, was higher for concrete bricks for most of the capitals. At the end of the paper, so as to minimise the subjectivity of considering the transportation stage in the CO2LCA studies, a matrix and flowchart were proposed to manage the transport phase in this kind of study.
DOI: 10.6084/m9.figshare.5666350.v1
title: CO2 emissions related to building materials transportation in Brazil: comparative study on structural ceramic and concrete bricks

description: Abstract The CO2 Emission Life Cycle Assessment (CO2LCA) of a product involves quantifying CO2 emissions in the pre-use, use and end-of-life stages. The pre-use stage involves industry, execution and transportation stages. The aim of this paper is to study CO2 emissions of ceramic and concrete bricks, based on data collection of emissions in the industry and transportation stages, evaluating the impact of the transportation stage of these materials in 26 Brazilian capitals. Therefore, research was carried out in manufacturing companies classified in the "Brazilian Sectoral Quality Program". The transportation distances from the industries to the capitals were analysed using Google Maps. The results have shown that the capitals located in the North and Southeast regions presented the highest and lowest emission values related to transportation for both types of bricks, respectively. The contribution of the transportation phase, related to total emissions, was higher for concrete bricks for most of the capitals. At the end of the paper, so as to minimise the subjectivity of considering the transportation stage in the CO2LCA studies, a matrix and flowchart were proposed to manage the transport phase in this kind of study.
DOI: 10.6084/m9.figshare.5669305
title: Methods for determining hydration kinetics by chemical shrinkage and parameters influencing it

description: Abstract Measuring chemical shrinkage provides information about the development of hydration kinetics of cementitious materials. It is also related to the degree and heat of hydration. To determine chemical shrinkage, volume change caused by the hydration reactions in a sample of cement paste under saturation conditions is quantified. There are three methods to measure this shrinkage: dilatometry, gravimetry and picnometry. These experimental procedures require simple and inexpensive equipment. There are parameters that can influence the results, such as sample thickness, water/cement ratio, surface area of the sample, amount of water on the sample and cement composition. In this research, the methods for measuring chemical shrinkage in Portland cement pastes are detailed, as well as the parameters that influence the results.
DOI: 10.17632/zh3rc7hvrm.1
title: HiPACE++: A portable, 3D quasi-static particle-in-cell code

description: Modeling plasma accelerators is a computationally challenging task and the quasi-static particle-in-cell algorithm is a method of choice in a wide range of situations. In this work, we present the first performance-portable, quasi-static, three-dimensional particle-in-cell code HiPACE++. By decomposing all the computation of a 3D domain in successive 2D transverse operations and choosing appropriate memory management, HiPACE++ demonstrates orders-of-magnitude speedups on modern scientific GPUs over CPU-only implementations. The 2D transverse operations are performed on a single GPU, avoiding time-consuming communications. The longitudinal parallelization is done through temporal domain decomposition, enabling near-optimal strong scaling from 1 to 512 GPUs. HiPACE++ is a modular, open-source code enabling efficient modeling of plasma accelerators from laptops to state-of-the-art supercomputers.
DOI: 10.17632/2mdt43z9kx.1
title: Masonry Crack Images Dataset collected from Odisha (Bhubaneswar India) for crack and non crack clasification 

description: The data contains pictures of cracked and non cracked images of mainly masonry walls collected from Odisha India.
DOI: 10.17632/d5vw9sjcrv.1
title: A target expression threshold dictates invader defense  and autoimmunity by CRISPR-Cas13

description: Immune systems must recognize and clear foreign invaders without eliciting autoimmunity. CRISPR-Cas immune systems in prokaryotes manage this task by following two criteria: extensive guide:target complementarity and a defined target-flanking motif. Here we report an additional requirement for RNA-targeting CRISPR-Cas13 systems: expression of the target transcript exceeding a threshold. This finding is based on targeting endogenous non-essential transcripts, which rarely elicited dormancy through collateral RNA degradation. Instead, eliciting dormancy required over-expressing targeted transcripts above a threshold. A genome-wide screen confirmed target expression levels as the principal determinant of cytotoxic autoimmunity and revealed that the threshold shifts with the guide:target pair. This expression threshold ensured defense against a lytic bacteriophage yet allowed tolerance of a targeted beneficial gene expressed from an invading plasmid. These findings establish target expression levels as a third criterion for immune defense by RNA-targeting CRISPR-Cas systems, buffering against autoimmunity and distinguishing pathogenic and benign invaders.
DOI: 10.6084/m9.figshare.5668915
title: Technical and economic viability of rendering mortar produced with incorporation of ornamental rocks residue

description: Abstract Currently, besides economic development, there is the issue of sustainable development, which seeks ways not only to lower costs, but also reduce environmental impacts. Among the environmental impacts caused by construction is ornamental rock residue cutting (ORRC) generated by civil construction. This paper aims to analyse the addition of ORRC in amounts of 50%, 100% and 150% in relation to the volume of cement to produce mortar for rendering. To do this, laboratory tests analysing water retention and consistency, specific mass, compressive strength and tensile tests were performed. The application on site and the production cost of the mortars were also analysed. In addition, a mixing process to use the in natura residue was proposed. The results show an improvement in the properties evaluated, both in the fresh and hardened states for all the mixtures. In this research, the mixtures that showed the best results were those with an addition of 100% of ORRC. Regarding production costs, there was a decrease in all the mixtures with the addition of ORRC. Finally, the proposed mixing process proved to be efficient in eliminating the drying and harrowing steps.
DOI: 10.6084/m9.figshare.5668915.v1
title: Technical and economic viability of rendering mortar produced with incorporation of ornamental rocks residue

description: Abstract Currently, besides economic development, there is the issue of sustainable development, which seeks ways not only to lower costs, but also reduce environmental impacts. Among the environmental impacts caused by construction is ornamental rock residue cutting (ORRC) generated by civil construction. This paper aims to analyse the addition of ORRC in amounts of 50%, 100% and 150% in relation to the volume of cement to produce mortar for rendering. To do this, laboratory tests analysing water retention and consistency, specific mass, compressive strength and tensile tests were performed. The application on site and the production cost of the mortars were also analysed. In addition, a mixing process to use the in natura residue was proposed. The results show an improvement in the properties evaluated, both in the fresh and hardened states for all the mixtures. In this research, the mixtures that showed the best results were those with an addition of 100% of ORRC. Regarding production costs, there was a decrease in all the mixtures with the addition of ORRC. Finally, the proposed mixing process proved to be efficient in eliminating the drying and harrowing steps.