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2,315 results for “maintainability”
Data for: Application Performance Monitoring: Trade-Off between Overhead Reduction and Maintainability
<p>Monitoring of a software system provides insights into its runtime behavior, improving system analysis and comprehension. System-level monitoring approaches focus, e.g., on network monitoring, providing information on externally visible system behavior. Application-level performance monitoring frameworks, such as Kieker or Dapper, allow to observe the internal application behavior, but introduce runtime overhead depending on the number of instrumentation probes.<br /> We report on how we were able to significantly reduce the runtime overhead of the Kieker monitoring framework. For achieving this optimization, we employed micro-benchmarks with a structured performance engineering approach. During optimization, we kept track of the impact on maintainability of the framework. In this paper, we discuss the emerged trade-off between performance and maintainability in this context.<br /> To the best of our knowledge, publications on monitoring frameworks provide none or only weak performance evaluations, making comparisons cumbersome. However, our micro-benchmark, presented in this paper, provides a basis for such comparisons. Our experiment code and data are available as open source software such that interested researchers may repeat or extend our experiments for comparison on other hardware platforms or with other monitoring frameworks.</p> <p>This dataset supplements the paper and contains the raw experimental data as well as several generated diagrams for each experiment.</p>
MedSens data (Version 4.0.0, update April 23, 2023). Dataset maintained by Reef Check Italia
<p>MedSens data is a dataset including the abundance of selected Mediterranean marine species, collected by trained volunteers (<strong>EcoDivers</strong>, i.e. scuba divers, free divers and snorkelers) according to the <strong>Reef Check Mediterranean Underwater Coastal Environment Monitoring</strong> (<strong>RCMed U-CEM</strong>) protocol (Cerrano et al., 2017), and maintained by the non-profit association <strong>Reef Check Italia</strong>.</p> <p>This dataset is a subset of 25 selected species from the <strong>Reef Check Med - key Mediterranean marine species</strong> dataset, and it is specifically intended to calculate the <strong><em>MedSens </em></strong>index developed by Eva Turicchia, Carlo Cerrano, Matteo Ghetta, Marco Abbiati and Massimo Ponti (Turicchia et al., 2021). MedSens data is provided as ESRI shapefiles in WGS84 geographic coordinates (EPSG:4326).</p> <p> </p> <p><strong><em>MedSens </em>abstract</strong></p> <p>Citizen science (CS) projects may provide community-based ecosystem monitoring, expanding our ability to collect data across space and time. However, the data from CS are often not effectively integrated into institutional monitoring programs and decision-making processes, especially in marine conservation. This limitation is partially due to difficulties in accessing the data and the lack of tools and indices for proper management at intended spatial and temporal scales. <em>MedSens</em> is a biotic index specifically developed to provide information on the environmental status of subtidal rocky coastal habitats, filling a gap between marine CS and coastal management in the Mediterranean Sea. The <em>MedSens</em> index is based on 25 selected species, incorporating their sensitivities to the pressures indicated by the European Union’s Marine Strategy Framework Directive (MSDF) and open data on their distributions and abundances, collected by trained volunteers (mainly scuba divers, but also free divers and snorkelers) using the Reef Check Mediterranean Underwater Coastal Environment Monitoring (RCMed U-CEM) protocol. The species sensitivities were assessed relative to their resistance and resilience against physical, chemical, and biological pressures, according to benchmark levels and a literature review. The <em>MedSens</em> index was calibrated on a dataset of 33,021 observations from 569 volunteers (2001 to 2019), along six countries’ coasts. A free and user-friendly QGIS plugin allows easy index calculation for areas and time frames of interest. The <em>MedSens</em> index was applied to Mediterranean marine protected areas (MPAs) and the management and monitoring zones within Italian MPAs. In the studied cases, the <em>MedSens</em> index responds well to the local pressures documented by previous investigations.</p> <p><em>MedSens</em> converts the data collected by trained volunteers into an effective monitoring tool for the Mediterranean subtidal rocky coastal habitats. <em>MedSens</em> can help conservationists and decision-makers identify the main pressures acting in these habitats, as required by the MSFD, supporting them in the implementation of appropriate marine biodiversity conservation measures and better communicate the results of their actions. By directly involving stakeholders, this approach increases public awareness and the acceptability of management decisions, enabling more participatory conservation tactics.</p> <p> </p> <p><strong>References</strong></p> <p>Cerrano C, Milanese M, Ponti M (2017) Diving for science - science for diving: Volunteer scuba divers support science and conservation in the Mediterranean Sea. Aquat Conserv 27:303–323 <a href="https://doi.org/10.1002/aqc.2663">https://doi.org/10.1002/aqc.2663</a><br> Turicchia E, Cerrano C, Ghetta M, Abbiati M, Ponti M (2021) MedSens index: The bridge between marine citizen science and coastal management. Ecol Indic 122:107296 <a href="https://doi.org/10.1016/j.ecolind.2020.107296">https://doi.org/10.1016/j.ecolind.2020.107296</a></p>
Dataset - Drying out fish ponds, for an entire growth season, as an agroecological practice: maintaining primary producers for fish production and biodiversity conservation
<p>This dataset is based on samples taken from fish ponds in the Dombes region between 2007 and 2014. It includes sediment and water physio-chemistry data, as well as primary producer diversity, benthic invertebrate density and fish yield for 85 different ponds. All these data are linked to the distance to the last dry-out, a major practice in extensive fish farming in this region.</p> <p>There are two .tab and .csv files:<br> One containing the dataset<br> One containing the description of the different variables (Metadata)</p>
High MHC gene copy number maintains diversity despite homozygosity in a Critically Endangered single-island endemic bird, but no evidence of MHC-based mate choice
<p>Raw sequence data from two amplicon libraries of MHC class I exon 3 of Raso Lark <em>Alauda razae</em>, sequenced on an Illumina Miseq. The two different libraries (two different Illumina runs) are collected in separat tar archive (.tar). Within each of those are individual sequence reads as gzipped fastq files (.fastq.gz). Each sample has two files, one for read 1 (R1) and one for read 2 (R2), with file names structured as follows. Delimited by underscore (_) are:</p> <ol> <li>sample name as referred to in the data and paper (“RingNo” in the Supporting data table);</li> <li>formal ID (also referred to in data table, often corresponding to full ring number);</li> <li>Illumina sample number (i.e. based on the order that samples are listed in the sample sheet);</li> <li>Illumina lane number (static as L001, as Miseq instruments have a single lane on their flow cells);</li> <li>read number (R1 [forward] or R2 [reverse]);</li> <li>static identifier from Illumina (001).</li> </ol> <p>Thus, the file 83304_TJ83304_S163_L001_R2_001.fastq.gz is the reverse (read 2) MHC class I exon 3 sequence of individual 83304 (ring number TJ83304).</p>
Hippocampal hub neurons maintain distinct connectivity throughout their lifetime
<p>The temporal embryonic origins of cortical GABA neurons are critical for their specialization. In the neonatal hippocampus, GABA cells born the earliest (ebGABAs) operate as ‘hubs’ by orchestrating population synchrony. However, their adult fate remains largely unknown. To fill this gap, we have examined CA1 ebGABAs using a combination of electrophysiology, neurochemical analysis, optogenetic connectivity mapping as well as ex vivo and in vivo calcium imaging. We show that CA1 ebGABAs not only operate as hubs during development, but also maintain distinct morpho-physiological and connectivity profiles, including a bias for long-range targets and local excitatory inputs. In vivo, ebGABAs are activated during locomotion, correlate with CA1 cell assemblies and display high functional connectivity. Hence, ebGABAs are specified from birth to ensure unique functions throughout their lifetime. In the adult brain, this may take the form of a long-range hub role through the coordination of cell assemblies across distant regions.</p>
Data from: Ancient and modern genomes reveal microsatellites maintain a dynamic equilibrium through deep time
<p>Microsatellites are widely used in population genetics, but their evolutionary dynamics remain poorly understood. It is unclear whether microsatellite loci drift in length over time. This is important because the mutation processes that underlie these important genetic markers are central to the evolutionary models that employ microsatellites. We identify more than 27 million microsatellites using a novel and unique dataset of modern and ancient Adélie penguin genomes along with data from 63 published chordate genomes. We investigate microsatellite evolutionary dynamics over two time scales: one based on Adélie penguin samples dating to approximately 46.5 kya, the other dating to the diversification of chordates more than 500 Mya. We show that the process of microsatellite allele length evolution is at dynamic equilibrium; while there is length polymorphism among individuals, the length distribution for a given locus remains stable. Many microsatellites persist over very long time scales, particularly in exons and regulatory sequences. These often retain length variability, suggesting that they may play a role in maintaining phenotypic variation within populations.</p>
Pyrimidines maintain mitochondrial pyruvate oxidation to support de novo lipogenesis
<p>This study elucidates the essential role of pyrimidines in supporting mitochondrial pyruvate oxidation and the tricarboxylic acid (TCA) cycle. Quantitative assessment of metabolite changes in response to alterations in cellular pyrimidine levels was conducted using liquid chromatography-mass spectrometry. Concurrently, western blot analysis was employed to characterize the expression of metabolic enzymes potentially involved in this regulatory process. To enhance precision, metabolic activity measurements were conducted under both untreated and pyrimidine-depleted conditions using radioactivity-based assays, isotope tracers, and Seahorse analyzers. The comprehensive dataset includes experimental quantifications of metabolite abundance, accurate assessments of metabolic activity, and protein levels of metabolic and signaling enzymes.</p>
Data for: Key bacterial groups maintain stream multifunctionality in response to episodic drying
<p>Microbial biodiversity is fundamental to maintain ecosystem functioning in seasonally variable ecosystems. However, it remains unclear how alterations in water availability caused by seasonal drying compromise the ability of stream microbes to maintain multiple functions simultaneously (i.e., multifunctionality). Using data from 32 streams, we investigated how the phenology of seasonal drying influences stream microbial biodiversity and their capacity to sustain multifunctionality. Our results showed that stream multifunctionality and most bacteria did not respond to changes in drying phenology. Only two bacterial groups, the drying-resistant <em>Sphingobacteriia</em> and the drying-sensitive Acidobacteria_Gp7, exhibited positive associations with multifunctionality, whereas bacterial diversity showed a negative correlation with functions. Among these biodiversity aspects, <em>Sphingobacteriia</em> showed the strongest capacity to maintain multifunctionality at low and moderate performance levels. Our findings will help to better understand the mechanisms through which biodiversity sustains the functioning of seasonally variable streams and their responses to global change.</p>
Maintaining habitat diversity at small scales benefits wild bees and pollination services in mountain apple orchards
<p>In 2021, we conducted our study in apple orchards in South Tyrol, an Alpine region in Italy, using pan-traps, direct observations of visitation frequency, and a pollinator exclusion experiment. We investigated the scale-dependent effects of landscape heterogeneity and other parameters on wild bee assemblages and the related pollination service they provide at five spatial scales (radius 100 – 2,000 m).</p>
Lacritin proteoforms prevent tear film collapse and maintain epithelial homeostasis
<p>All the datasets related to the article Lacritin proteoforms prevent tear film collapse and maintain epithelial homeostasis, Georgiev et al., J Biol Chem, Jan-Jun 2021;296:100070. doi: 10.1074/jbc.RA120.015833. Epub 2020 Nov 21. The diverse methods onvolved are described in the article which is available in gold open access. </p> <p>The dataset is available also at these links:</p> <p>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7948570/</p> <p>https://www.sciencedirect.com/science/article/pii/S0021925820000575#appsec1</p> <p>https://www.jbc.org/article/S0021-9258(20)00057-5/fulltext#supplementaryMaterial</p>
Riparian buffers maintain aquatic trophic structure in agricultural landscapes
<p>Supporting data and R code for the publication entitled "Riparian buffers maintain aquatic trophic structure in agricultural landscapes".</p> <p> </p>
raw data for Optogenetic Stimulation of Prelimbic Pyramidal Neurons Maintains Fear Memories and Modulates Amygdala Pyramidal Neuron Transcriptome
<p>Figure Legend </p> <p>Modulation of cellular excitability of Prelimbic (PrL) pyramidal neurons by optogenetic stimulation. (<strong>A</strong>) Representative traces in current-clamp configuration reporting evoked firing activity triggered by a series of depolarizing current steps (0 to 400 pA) applied to PrL pyramidal neurons of SHAM FEAR (black, <em>n</em> = 8 neurons from 5 mice), OPTO FEAR (red, <em>n</em>= 8 neurons from 5 mice), and No-EX (green, <em>n</em> = 5 neurons from 3 mice) groups. The cumulative plot shows the changes in firing activity. (<strong>B</strong>) Representative traces of PrL pyramidal neurons of SHAM FEAR (black, <em>n</em> = 8 neurons from 5 mice), OPTO FEAR (red, <em>n</em>= 8 neurons from 5 mice), and No-EX (green, <em>n</em> = 5 neurons from 3 mice) groups showing the firing activity triggered by linear depolarization from 0 to 800 pA. Graph (on the right) reports the effects of optogenetic stimulation on rheobase value. Namely, PrL pyramidal neurons of OPTO FEAR and No-EX groups recorded after optogenetic stimulation showed a clear reduction in the rheobase value in comparison to neurons of SHAM FEAR group (* at least <em>p</em>= 0.01). (<strong>C</strong>) Representative traces of Excitatory Post-Synaptic Currents (EPSC) of PrL pyramidal neurons of SHAM FEAR (black, <em>n</em> = 8 neurons from 5 mice), OPTO FEAR (red, <em>n</em>= 8 neurons from 5 mice), and No-EX (green, <em>n</em> = 5 neurons from 3 mice) groups. Graph plot (in the middle) and cumulative curve (on the right) depict the clear increase in firing frequency in PrL pyramidal neurons of OPTO FEAR and No-EX groups (* at least <em>p</em> = 0.01). (<strong>D</strong>) Graphs and cumulative curves report no significant differences in cellular excitability in PrL pyramidal neurons of SHAM NOT FEAR (black) and OPTO NOT FEAR (blue) groups. Data are reported as median with interquartile range.</p>
Fig. 4 in The Role Of Different Mollusk Species In Maintaining The Transmission Of Polyhostal Trematode Species In Ukrainian Polissya Waters: The Specificity Of Trematode Parthenogenetic Generations To Mollusk Hosts
Fig. 4. The distribution of olygoxenic three-host trematode species in the parthenitae host species of mollusks: A — E. stantschinskii; B — P. ovata; C — C. cornutus; D — T. clavata.
Fig. 3 in The Role Of Different Mollusk Species In Maintaining The Transmission Of Polyhostal Trematode Species In Ukrainian Polissya Waters: The Specificity Of Trematode Parthenogenetic Generations To Mollusk Hosts
Fig. 3. The distribution of polyxenic trematode species in the parthenitae host species of mollusks: A — H. conoideum; B — E. recurvatum.
Fig. 6 in The Role Of Different Mollusk Species In Maintaining The Transmission Of Polyhostal Trematode Species In Ukrainian Polissya Waters: The Specificity Of Trematode Parthenogenetic Generations To Mollusk Hosts
Fig. 6. The distribution of olygoxenic two-host trematode species in the parthenitae host species of mollusks: A — P. ichikawai; B — D. subclavatus; C — F. hepatica; D — L. constantinovae; E — A. imitans.
Fig. 2 in The Role Of Different Mollusk Species In Maintaining The Transmission Of Polyhostal Trematode Species In Ukrainian Polissya Waters: The Specificity Of Trematode Parthenogenetic Generations To Mollusk Hosts
Fig. 2. The distribution of olygoxenic three-host trematode species in the parthenitae host species of mollusks: A — H. cylindracea; B — H. variegatus; C — E. aconiatum; D — E. revolutum.
Fig. 5 in The Role Of Different Mollusk Species In Maintaining The Transmission Of Polyhostal Trematode Species In Ukrainian Polissya Waters: The Specificity Of Trematode Parthenogenetic Generations To Mollusk Hosts
Fig. 5. The distribution of polyxenic trematode species in the parthenitae host species of mollusks: A — N. attentuatus; B — L. scotiae.
Replication Package for Maintainability Challenges in ML: A Systematic Literature Reveiw
<p>In order to ensure transparency and reproducibility, we have made all study artefacts publicly here. Replication package for <strong>Maintainability Challenges in ML : A Systematic Literature Review</strong>. This package contains the data used for this Systematic Literature Review process and additional data synthesised from this study.</p> <ul> <li>Coding Summary Report Generated from Nvivo project. (Coding Summary By Code Report.pdf)</li> <li>Detailed List of Selected papers for Literature Review papers(Literature Review Papers.xlsx)</li> <li>Papers relating to implications for developers and Researchers(Implication for Developer and Researchers.pdf)</li> <li>Search query from Different Database.pdf</li> <li>No of papers used in to answer RQ using the Literature review paper by categories (No of Literature review papers.pdf)</li> <li>Maintainability challenges in ML workflow from SLR.pdf</li> </ul>
Functional traits and metacommunity theory reveal that habitat filtering and competition maintain bird diversity in a human shared landscape
<p>Human shared landscapes cover much of Earth, yet their conservation value is contested. This controversy may persist because previous studies have examined species diversity, rather than the processes through which such diversity is maintained. For example, a site exhibiting high diversity may not actually bolster populations if the diversity is only maintained through net immigration. Recent research has begun to isolate the processes that maintain metacommunities and develop functional trait methods to identify these processes. However, the processes underlying bird communities remain obscure. Here, we leverage metacommunity theory, functional trait partitioning, and a Bayesian multispecies abundance model to assess whether a shared landscape – woody perennial polyculture farms – bolsters bird diversity. Such farms grow multiple species of food-producing woody perennials together with vegetative groundcover. We surveyed birds and their <em> in situ </em> functional traits across the US Midwest in traditional agriculture, woody perennial polyculture, prairie, and woods. We found that woody perennial polycultures exhibited the highest bird diversity and were the most preferred by many species (including threatened ones). Moreover, our functional trait analysis suggests that this diversity is maintained through habitat filtering and competition, rather than merely immigration. Thus, shared landscapes can likely conserve birds by providing a distinct habitat. These results suggest that woody perennial polyculture farms offer substantial potential to support bird populations in the US Midwest. Our study demonstrates the utility of <em> in situ </em> functional trait partitioning within a Bayesian framework to unmask ecological processes and help assess the conservation value of landscapes.</p>
Text-fig. 15. Photomicrographs of thin sections of holotype BP/16/1738, Sorindeioxylon gorongosense gen. et sp. nov. from Muaredzi site 5, Gorongosa, Mozambique. a: TS, note the irregularly spaced and very narrow bands of parenchyma and mostly solitary vessel elements; b: TS at higher magnification with narrow rays; c: radial longitudinal section (RLS), rather oblique but shows the alternate, small-to-medium inter-vessel pits; d: tangential longitudinal section (TLS), rays are 1–3 cells wide but maintain the same width. Small arrow towards the right hand ray indicates a prismatic crystal in the ray cell; e: TLS rays with fibres in between; f: RLS showing mixed ray cells (upright, square and procumbent) poorly preserved. in Stratigraphy, Chronology And Palaeontology Of The Tertiary Rocks Of The Cheringoma Plateau, Mozambique
Text-fig. 15. Photomicrographs of thin sections of holotype BP/16/1738, Sorindeioxylon gorongosense gen. et sp. nov. from Muaredzi site 5, Gorongosa, Mozambique. a: TS, note the irregularly spaced and very narrow bands of parenchyma and mostly solitary vessel elements; b: TS at higher magnification with narrow rays; c: radial longitudinal section (RLS), rather oblique but shows the alternate, small-to-medium inter-vessel pits; d: tangential longitudinal section (TLS), rays are 1–3 cells wide but maintain the same width. Small arrow towards the right hand ray indicates a prismatic crystal in the ray cell; e: TLS rays with fibres in between; f: RLS showing mixed ray cells (upright, square and procumbent) poorly preserved.
ScienceDex guides
Understand access before you commit
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.