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1,625 results for “workers”
Wearable Network for Multi-Level Physical Fatigue Prediction in Manufacturing Workers - Dataset
<p>This dataset contains data from 43 subjects following two authentic manufacturing protocols and their self-reported fatigue score. The system employs 6 wearable sensors to continuously track vital and locomotive signs from multiple body locations.</p> <p> </p> <p>The goal of the experiment is to predict fatigue trends in a subject, while they are asked to perform pre-defined manual tasks simulating a manufacturing environment, using data from soft, flexible, wearable sensors and a vision system. The tasks in this study are repetitive and physically exerting involving intricate steps taken in real manufacturing settings. The iterative nature of the tasks facilitates comparative analyses of distinct temporal segments to characterize fatigue. The two manufacturing tasks are (1) Task Composite: Composite Sheet Layup, and (2) Task Harnessing: Wire Harnessing. The task protocol requires the subject to wear sensors to monitor vital and locomotive signs continuously. Additionally, we incorporate a weighted vest to exaggerate the induced fatigue in a reasonable duration for the study to mimic a full shift for a manufacturing worker. Each task consists of two rest periods of 5 minutes each at the start and end, as well as five segments of physical tasks. On average, each task takes a total of 1 hour. Before each data segment, the subject fills out a survey form to indicate their current fatigues as per the Borg scale. </p>
Adaptive Computer Vision-Based 2D Tracking of Workers in Complex Environments
<p>Data set used for testing the efficiency of a vision-based tracking method on tracking construction workers. </p>
Video of surface rendering of internal head structures in Melissotarsus worker ants, specialised for chewing healthy wood.
<p>Ants of the genus<em> Melissotarsus </em>(subfamily Myrmicinae) inhabit tunnel systems excavated in the wood of living trees, where they keep large numbers of symbiotic armoured scale insects (Diaspididae). Tunnelling through healthy wood requires tremendous power. We investigated morphology of the musculoskeletal system of <em>Melissotarsus</em> using X-ray microcomputed tomography and 3D modelling (Khalife et al. 2018).</p> <p>Segmented structures inside one half of the head of a <em>Melissotarsus </em>worker: mandible (pale green; tip cut off); closer muscles of mandible (orange); closer apodeme (red); opener muscles of mandible (light blue); opener apodeme (dark blue); brain and suboesophageal ganglion (brown); tentorium and ventromedial phragma (green).</p> <p><strong>Micro-CT </strong>scans were performed at the Okinawa Institute of Science and Technology Graduate University, Japan<strong>.</strong></p> <p><strong>Segmentation </strong>of the reconstructed image stacks was performed with ITK-SNAP 3.6.0<strong> </strong></p> <p>Khalife A, Keller R, Billen J, Hita Garcia F, Economo E & Peeters C (2018) Skeletomuscular adaptations of head and legs of <em>Melissotarsus</em> ants for tunnelling through living wood. <strong>Frontiers in Zoology</strong> 15: 30. https://doi.org/10.1186/s12983-018-0277-6</p>
The Effects of Cycle and Treadmill Desks on Work Performance and Cognitive Function in Sedentary Workers: data repository of a review and meta-analysis.
<p>This repository contains additional files related to the review and meta-analysis. The first dataset contains list of search terms. The second dataset contains list od studies included in the meta-analysis. The third dataset contains study evaluation using PEDro scale tool. The fourth dataset contains two additional forrest plots (Effect of cycle and treadmill desks on typing errors and Effect of cycle and treadmill desks on congruent Eriksen Flanker test).</p>
Fig. 1 in Chemical control of leaf-cutting ants: how do workers disperse toxic bait fragments onto fungus garden?
Fig. 1. Variograms columns: control, sulfluramid and indoxacarb.
Figures 7–8 in First record of Carebara oertzeni Forel (Hymenoptera: Formicidae) from the European part of Turkey with worker description
Figures 7–8. Carebara oertzeni Forel, male; 7 ‒ head in full face view; 8 ‒ body in profile.
Fig. 1 in Effects of cycloheximide on the mortality of Atta sexdens leaf-cutting worker ants
Fig. 1. Survival curves of Atta sexdens workers during 21 days.
Fig. 4 in Chemical cuticular signature of leafcutter ant Atta sexdens (Hymenoptera, Formicidae) worker subcastes
Fig. 4. Distribution pattern of four cuticular hydrocarbons among Atta sexdens worker subcastes.
Pheromone relay networks in the honeybee: messenger workers distribute the queen's fertility signal throughout the hive
<p>This resource contains two items:</p><p>1. Dataset; Within-hive trajectories of individually-tagged honeybee workers.</p><p>2. Model; A C++ script for simulating queen pheromone transmission via physical contacts between bees. </p>
Artifacts for "Living on a Diet: A Brief Study of the Daily Allowances of Spanish Public Workers"
<div> <div>Academic researchers from Spain are entitled to financial compensation to cover accommodation and meals when attending conferences.</div> <div>The amount of this compensation, known as <em>per diem</em> or daily allowance, varies with the destination country and is defined in an official table set by the government in 2002.</div> <div>This study examines the adequacy of these allowances by comparing them to current accommodation and meal costs, defining a score to find countries where researchers can attend conferences without incurring financial loss.</div> <div>Our results show that only 55 countries offer neutral or positive results, highlighting the need to update the official table to suit current cost of living conditions.</div> </div>
Sleep duration, sleep quality, and their association with hypertension of petroleum workers
<p><strong>Objective </strong></p> <p>Explore Sleep duration, sleep quality, and their association with hypertension of petroleum workers.</p> <p><strong>Design</strong></p> <p>Setting and participants Multistage, random-cluster sampling design was used to select study samples, conducted a cross-sectional survey 1,500 prtroleum workers in 6 oil field bases in Karamay, Xinjiang. Unified blood pressure test by occupational physicians at the central hospital. Excluding 53 unfinished questionnaires and 27 unfinished blood pressure tests, 1420 participants were finally included as the subjects.</p> <p><strong>Outcomes</strong></p> <p>Main outcome measures were defined by dividing the referral process into three phases: (1) Ascertainment of hypertension; (2) Subjective sleep status was evaluated by the standard Pittsburgh Sleep Quality Index (PSQI); (3) The logistic regressions analysis were performed to evaluate the associations of sleep duration and sleep quality with hypertension.</p> <p><strong>Results </strong></p> <p>First, short sleep duration(OR=1.64, 95%CI=1.16-2.31) and poor sleep quaity(OR=3.35, 95%CI=2.40-4.67)) exerted a statistically significant effect on hypertension. Second, stratified analysis, (1) stratified by gender, Short sleep duration and poor sleep quality in female and male can increase the risk of hypertension, the OR values of female were 2.05 (95%CI:1.35-3.12) and 5.59 (95%CI:3.67-8.49), respectively. The OR values of male were 2.00 (95%CI:1.20-3.34) and 2.37 (95%CI:1.42-3.95), respectively (2) stratified by age, Among short sleepers, adults aged 30-44 years had higher adjusted odds of hypertension (OR: 2.19, 95% CI: 1.34-3.59) than older adults aged 45-65 years (OR: 2.70, 95% CI:1.60-4.54). Among poor sleepers, the risk of hypertension increasing with age, the OR values were: 3.43(95%CI: 1.52-7.74); 4.06(95%CI: 2.48-6.62); 4.35(95%CI: 2.60-7.27). (3) Stratified by shift work, we observed slightly increased relations of hypertension prevalence with the extension of shift work compared with non-shift workers, the OR (95% CI) were 2.28(1.20-4.35) and 3.86(2.08-7.15) for shift workers with short sleep duration and poor sleep quality, respectively.</p> <p><strong>Conclusion</strong></p> <p>Short sleep duration and poor sleep quality are associated with hypertension prevalence of petroleum workers.</p>
Data from: Integrating vital rates explains optimal worker size for resource return by bumble bee workers
1. Size-number trade-offs in reproduction are commonly observed in nature. Bumble bee (Bombus spp.) colonies produce workers that vary considerably in size. This variation suggests that colonies face potential size-number trade-offs when producing workers. 2. Here, we estimated size-based vital rates of Bombus vosnesenskii workers using colonies reared from wild caught queens. We conducted a mark-recapture study to estimate worker survival as a function of body size. We also collected data on pollen and nectar loads as well as foraging trips using a radio-frequency identification system to estimate daily resource return as a function of body size. We integrated survival and daily resource return to estimate lifetime resource collection and offset these estimates by the size-based worker production costs. 3. We found size-based trade-offs among workers of different sizes. Smaller workers had higher survival, but larger workers returned with more resources per day. The largest workers made slightly fewer foraging trips per day. 4. Overall, larger workers made the greatest lifetime contribution to both nectar and pollen collection. However, once the benefits of larger workers are offset by their higher production costs, intermediate-sized workers were the optimal for net resource contribution according to our models. Many previous studies have found that larger workers outperformed smaller workers with foraging and in-nest tasks, yet these studies have not integrated multiple fitness components or worker production costs to quantify net resource contribution towards colony growth. 5. Accounting for tradeoffs between costs and performance changed our conclusions about optimal body size from being large to being near the observed average. Similar approaches of integrating multiple vital rates may resolve apparently suboptimal life histories in other taxa.
Primary-level worker interventions for the care of mental disorders and distress in low- and middle-income countries - GRADE evidence profiles
<p>This file includes all GRADE evidence profiles for the following Cochrane review:</p> <p>van Ginneken N, Chin WY, Lim YC, Ussif A, Singh R, Shahmalak U, Purgato M, Rojas-García A, Uphoff E, McMullen S, Foss HS, Thapa Pachya A, Rashidian L, Borghesani A, Henschke N, Chong L-Y, Lewin S. Primary-level worker interventions for the care of mental disorders and distress in low- and middle-income countries. Cochrane Database of Systematic Reviews. In press</p>
Worker Cooperatives' Potential for Migrant Women's Self-Empowerment. Insights from a Case Study in New York City
<p>Many migrant women in New York City face structural discrimination and administrative hurdles that complicate their access to safe and well-paid labor. Worker cooperatives have been shown to reduce the precarity and economic exclusion of marginalized groups. However, although much is known about worker cooperatives’ economic potential for improving workers’ lives, other social effects remain far less well explored. The present research contributes to exploring this gap by examining how joining a worker cooperative empowers migrant women in their everyday lives. We apply the concept of self-empowerment to several spheres of the everyday lives of migrant women. At an empirical level, the study focuses on migrant women who are members of nine cleaning- or care-worker cooperatives in New York City. The data were gathered using a participatory research approach and consist of interviews, participant observations, and a quantitative survey. The findings are that worker cooperatives have empowering effects on migrant women beyond the sphere of paid work. Although the additional unpaid workload as co-owners of cooperatives represents an extra burden for many migrant women, they now have better wages, more flexibility, and safer workplaces. Furthermore, they acquire a range of leadership skills, enlarge their social network beyond their ethnic communities, and earn increased esteem as co-owners of businesses. Through worker-ownership, migrant women thus increase their economic, cultural, social, and symbolic capital, which enables them to exercise more agency not only in their paid work but also in their families and leisure time.</p>
Data from: Macroevolutionary integration of phenotypes within and across ant worker castes
<p>Phenotypic traits are often integrated into evolutionary modules: sets of organismal parts that evolve together. In social insect colonies the concepts of integration and modularity apply to sets of traits both within and among functionally and phenotypically differentiated castes. On macroevolutionary timescales, patterns of integration and modularity within and across castes can be clues to the selective and ecological factors shaping their evolution and diversification. We develop a set of hypotheses describing contrasting patterns of worker integration and apply this framework in a broad (246 species) comparative analysis of major and minor worker evolution in the hyperdiverse ant genus Pheidole. Using geometric morphometrics in a phylogenetic framework, we inferred fast and tightly integrated evolution of mesosoma shape between major and minor workers, but slower and more independent evolution of head shape between the two worker castes. Thus, Pheidole workers are evolving as a mixture of intra- and inter-caste integration and rate heterogeneity. The decoupling of homologous traits across worker castes may represent an important process facilitating the rise of social complexity.</p>
An organizing feature of bumble bee life history: worker emergence promotes queen reproduction and survival in young nests
<p>Bumble bee queens initiate nests solitarily and transition to living socially once they successfully rear their first cohort of offspring. Bumble bees are disproportionately important for early season pollination, and many populations are experiencing dramatic declines. In this system, the onset of the social stage is critical for nest survival, yet the mechanisms that facilitate this transition remain understudied. Further, the majority of conservation efforts targets the social stage of the bumble bee life cycle and do not address the solitary founding stage. We experimentally manipulated the timing of worker emergence in young nests of bumble bee (Bombus impatiens) queens to determine whether and how queen fecundity and survival are impacted by the emergence of workers in the nest. We found that queens with workers added to the nest exhibit increased ovary activation, accelerated egg laying, elevated juvenile hormone (JH) titres and also lower mortality relative to solitary queens. We also show that JH is more strongly impacted by the social environment than associated with queen reproductive state, suggesting that this key regulator of insect reproduction has expanded its function in bumble bees to also influence social organization. We further demonstrate that these effects are independent of queen social history, suggesting that this underlying mechanism promoting queen fecundity is reversible and short lived. Synchronization between queen reproductive status and emergence of workers in the nest may ultimately increase the likelihood of early nesting success in social systems with solitary nest founding. Given that bumble bee workers regulate queen physiology as we have demonstrated, the timing of worker emergence in the nest likely impacts queen fitness, colony developmental trajectories and ultimately nesting success. Collectively, our findings underline the importance of conservation interventions for bumble bees that support the early nesting period and facilitate the production and maintenance of workers in young nests.</p>
How Did the COVID-19 Crisis Affect Different Types of Workers in the Developing World?
<p>Video presentation of paper submission 15 for the Data for Policy 2021 Conference with the main results of "HOW DID THE COVID-19 CRISIS AFFECT DIFFERENT TYPES OF WORKERS IN THE DEVELOPING WORLD?" research paper emanating from the JobsWatch World Bank project to monitor labor market outcomes across 40 developing countries in real time identifying women, youth, less educated and urban workers as bearing the brunt of the burden of the pandemic job and wage losses.</p>
Data for "Reinfections and cross-protection in the 1918/19 influenza pandemic: Revisiting a survey among male and female factory workers"
<p>Dataset underlying the analysis of the paper: "Reinfections and cross-protection in the 1918/19 influenza pandemic: Revisiting a survey among male and female factory workers"</p> <p>The dataset includes the following variables:</p> <ul> <li>Sex - male, female</li> <li>Age2 - age in full years</li> <li>Grippe - influenza (oui = yes, non=no)</li> <li>Times_grippe - how often did the influenza occur (0-3)</li> <li>Reinfection - 0=no, 1=yes</li> <li>Reinfection_forte - was the reinfection stronger or the same (1) or weaker (0) as the first infection?</li> <li>Severeness - 1=mild, 2 and 3 = strong</li> <li>reinf_v1 - reinfection first wave 0=no, 1=yes</li> <li>vage1 - infection first wave 0=no, 1=yes</li> <li>reinf_v2 - reinfection second wave 0=no, 1=yes</li> <li>vage2 - infection second wave 0=no, 1=yes</li> <li>reinf_v3 - reinfection third wave 0=no, 1=yes</li> <li>vage3 - infection third wave 0=no, 1=yes</li> <li>reinf_y1919 - reinfection winter 1919 0=no, 1=yes</li> <li>vage_1919 - infection winter 1919 0=no, 1=yes</li> <li>Grippe1890 - illness 1890 0=no, 1=yes</li> </ul> <p> </p> <p> </p>
Palaeontological reconstruction (3D model) of Dolichoderus jonasi Dubovikoff et Zharkov, 2022 (worker)
<p>Supplementary file 1 from Dubovikoff, D. A., Zharkov, D. M. 2022. A new species of the genus <em>Dolichoderus</em> Lund, 1831 (Hymenoptera: Formicidae) from a Late Eocene European amber. Caucasian Entomological Bulletin 181, 147–152 (doi:10.23885/181433262022181-147152).</p> <p>Abstract. A new species of ants, <em>Dolichoderus jonasi</em> sp. n., from a Late Eocene amber (Rovno and presumably Baltic ambers) of Europe is described from three workers and one male. The new species differs from all known fossil and recent species of the genus by the following set of characters: the presence of thorns on the pronotum, a head tapering to the back with pronounced occipital angles, a dimpled (with numerous pits) sculpture on the head and thorax, the presence of a ridge on the posterior edge of the main surface of the propodeum with a row of large setae, the presence of large straight setae on the body arranged in rows, high and somewhat narrowed to the apex petiole scale. The described species cannot be assigned to any of species groups (complexes) in the genus. The phylogenetic relationships of the new species with other species of the genus are discussed. Based on the studied morphological features, the species is closest to representatives of the debilis complex, widespread in South and Central America. However, it has significant differences and should be considered as the separate jonasi complex. We used computer microtomography methods to study structures inaccessible for optical microscopes and accurate measurements, which made it possible to characterize all diagnostic characters of the new species. Reconstructions of a worker and a male using 3D modeling are presented. The discovery of D. jonasi sp. n. in European Late Eocene amber is another possible evidence of relations between the faunas of Europe and the Americas in the past.</p> <p> </p>
Data management table for PhD project:Reconquering the city: Pastoral agency and spatial impact of workers' parishes in Belgium (1884-1914)
<p>In this data management table I organized additional information on all the sorts of data I am or will be using in the course of my research project. The content of the table sheds a light on why, how and for who I work on these different kinds of data.</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.