Categories - Emissions

Sub Categories

Topics

carbon-intensity, imo, imo-cii, international-maritime-organization, international-trade, ship, shipping, shipping-carbon-intensity-indicator, shipping-cii, cii, carbon-intensity-indicator, electricity-prices, greenhouse-gas, carbon-intensity-api, carbon-removal, climate-modeling-experiments, magicc, aemo, cdeii, nem, national-grid, carbon-api, cdr, carbon-dioxide-removal, supabase, remix, llnl, co2-sensors, balena, architecture, sentinel-5, emissions-api, carbon-flux, ec0lint, digital-ecology, reactjs-app, nodejs-api, climate-targets, climate-change-api, paris-agreement, ccus, co2monitor, co2-measurements, co2-emission, co2-concentration, electricity-maps-api, asyncio, ghg-data, sustainable, foqus, urban-emission, column-transport-error, standalone, scale-factors, regridding, masks, data-broker, configuration-files, zero-waste, redux-toolkit, biogeochemical-models, icos, european, dataaccess, ameriflux, bluecarbon, blue-carbon, unfccc, on-road, automobiles, pollutants, iwa, giz, ecam, methane-detection, hyperspectral-datasets, aviris-ng, private-jets, marginal-emissions, electricity-market, scheduling, job-scheduler, gfedv4s-emissions, fires, fire-inventory, fire-emissions, filling, detail, carbon-model, opus, em27, camtracker, bruker, autonomous, inversions, inverse-modeling, analytical-inversions, pollution-prediction, exporting-emissions, wrf-domain, emission, emissions-inventory, eu-ets-market, mitigation, geoengineering, adaptation, smoke-recognition, smoke, multiprocessing, electricitymaps, electricitymap, cpp-climate-change-linux-foundation, carbon-accounting,

Projects

Contributors

Matthias [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

Xavier Lacoste [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation, portability, radiuss, e3sm-model, ngee-arctic, petsc, pflotran

Yue Hao [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

Stefano Frambati [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

Lionel Untereiner [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation, energistics, epc, prodml, reservoir, resqml, witsml and 1 more

Andrea Franceschini [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation, portability, radiuss

robinspb [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation, portability, radiuss

frankfeifan [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

Madonna Yoder [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

mndiaye24 [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation, portability, radiuss

Mark Khait [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

Terry Ligocki [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

Peter B. Robinson [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation, app-infrastructure, parallel-computing, radiuss, blt, portability, programming-model and 5 more

Chris White [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation, build-tools, language-bindings, radiuss, app-infrastructure, parallel-computing, data-management and 7 more

Quan Bui [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

aure-lily [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

Ryan Aronson [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics: carbon-storage, geomechanics, llnl, reservoir-simulation

Eren Rudy [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics: balena, climate, co2-sensors

Desmond Good [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics: balena, climate, co2-sensors, international-space-station, orbital-mechanics, physics

Bill Love [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics: balena, climate, co2-sensors

Stewart Nelson [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics: balena, climate, co2-sensors

Zoltan Nagy [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics: balena, climate, co2-sensors, climate-data, dash, ploty, amethyst-support, cp437, crates, retrogaming and 7 more

wde0924 [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics: atmospheric-modelling, column-transport-error, urban-emission

brioux [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

Harsh Sharma [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

Pihu1998 [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

Kris Stern [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt, superset

adityajoshi12 [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

Anton Yip [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

Ry Jones [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt, composer, distributed-ledger, hyperledger, samples, interledger and 23 more

Lam Nguyen [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

Bhaarat Kumar Khatri [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

George Roman [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt, nft

Achintya Kumar [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

arezd [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: blockchain-network, blockchain-technology, climate, climate-change, dlt

gitbook-bot [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Offsets and Trading
Topics: climate-change, climate-solutions, global-warming, wiki, book, fortran-language, fortran-tutorial, reinforcement-learning, stormwater, accessible and 60 more

Catherine Seppanen [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:

Satish Kumar [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:

Alexander Madyankin [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, iteration, preprocessing, ecmascript, static-code-analysis

nightwing [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, best-practices, chrome-browser, mobile-web, progressive-web-app, web-app, ecmascript, static-code-analysis and 1 more

Mateusz Derks [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, probot-app, the-guild, hexo, ecmascript, static-code-analysis, date-fns, i18next and 9 more

Corné Dorrestijn [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate-change, expo, global-warming, redux-toolkit, sustainability, zero-waste, video-player

Chris Brody [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis, flow, formatter, less, prettier, printer and 1 more

Max Brenner [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics: air-quality, citizen-science, copernicus, emissions-api, esa, sentinel-5, mensa, apt, apt-get

Saurabh Daware [email protected]

OST Projects: 1
Categories: Emissions, Sustainable Development
Sub Categories: Carbon Intensity and Accounting, Data Catalogs and Interfaces
Topics: data-discovery, earthdata-search, eosdis, climate-change, carbon-footprint, carbon-model, climate-impact, life-cycle-assessment, vscode, vscode-theme and 4 more

Max Synnott [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate-change, expo, global-warming, redux-toolkit, sustainability, zero-waste, stripe, dependency-free, tiny

闲耘™ [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, resources, life, markline, timeline, gitcafe, gitlab, ant-design and 6 more

oprogramador [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, assertions, superagent, supertest, geo, countries, holiday-api, holidays and 10 more

Hector Espert [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate-change, sustainability, electrical-utility, esios, ree, energy-consumption, hacs, i-de, iberdrola, sensor and 13 more

cjihrig [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, community, deno, denoland, docker-image, dockerfile, fork, ghcr and 39 more

Chris Gwilliams [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate-change, expo, global-warming, redux-toolkit, sustainability, zero-waste, automatic-api, graphile, graphql-api, graphql-js and 12 more

Brandon Mills [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, automated-machine-learning, automl, deeplearning, feature-engineering, gradient-boosting, hyperparameter-optimization, keras and 14 more

Kevin Partington [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ajv, json-schema, ecmascript, static-code-analysis, tslint, mochajs, tdd and 4 more

Will Chen [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, app-framework, expo, native-apps, universal, ant-design, antd, design-systems and 8 more

Emil Bay [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, earth, himawari, images, japan, live, cryptography, curve25519 and 14 more

Yannick Croissant [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, sockjs, algolia, state-management, ecmascript, static-code-analysis, analyze, bundle and 5 more

Julian Laval [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, billion-oyster-project, curriculum, mean-stack, non-profit, nyc, oysters, research and 9 more

Ivan Fraixedes [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, cloud-management, cloud-providers, cloud-provisioning, configuration-management, edge, event-management, event-stream and 24 more

Balázs Orbán [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, ecmascript-parser, swc, typescript-compiler, typescript-parser, static-code-analysis, build-tools and 17 more

Conrad Zimmerman [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, verification, ecmascript, static-code-analysis, flavortown

gfyoung [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, bun, csv, deno, excel, grid, spreadsheet, xlsx and 13 more

Denis Sikuler [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, jsonnet, resources, bootstrap-table, charts, datatable, flex, flex-carousel and 54 more

Tobias Bieniek [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ember, session-management, dom-assertions, emberjs, qunit, qunit-dom, cookies and 86 more

Clement AUGER [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate, co2

root [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate, co2

Benjamin-Boisserie-ABC [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate, co2

Maxime Dréau [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate, co2

Julien Pezet [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate, co2

fjg [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: climate, co2, devise

Jack Ford [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, declarative, ecmascript, static-code-analysis

Jasper Woudenberg [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis

Jesse Ostrander [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, bug, bugs, bugsnag, crash-reporting, debugging-tool, error-handling, error-monitoring and 10 more

Joakim Carlstein [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, eslint-config, eslint-rules, xo, best-practices, code-style, shareable-configs, style-linter and 12 more

Gunnar Lium [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis

Josh Quintana [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, cli-utilities, cloud-foundry, environment-variables, ecmascript, static-code-analysis

CJ R [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, feathers, feathersjs, ecmascript, static-code-analysis, build-tool, dev-server, hmr and 17 more

suisho [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis

s0ph1e [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis

ryym [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis, tslint, mochajs, tdd, test-framework, testing-tools and 5 more

avimar [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, stripe, cloud-management, cloud-providers, cloud-provisioning, configuration-management, edge, event-management and 16 more

chrisjshull [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, atom, ecmascript, static-code-analysis, dates, datetime, intl, times and 1 more

Dan Dascalescu [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, community, networks, presentation, slides, sustainability, systems, featured and 172 more

Luke Lewis [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis

Kir Belevich [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, firefox, headless, marionette, puppeteer, remote, selenium, ecmascript and 1 more

Luke Sikina [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis

Olmo Kramer [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, qt, qtwebengine, qutebrowser, vim, ecmascript, static-code-analysis

Nicolas Mattia [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, documents, presentations, progressive-web-app, pwa-apps, rich-text-editor, slides, stencil and 23 more

Orlando Wenzinger [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, firebase-geo, firebase-query, geo, geocoding, geofire, geolocation, ecmascript and 11 more

Kirill Efimov [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis, zip, commonmark

Matthew Dunsdon [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis

Harry Ho [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis

Michael Mclaughlin [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, interpreter, javascript-engine, virtual-machine, ecmascript, static-code-analysis

Hugo Wood [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, bi, business-intelligence, businessintelligence, clojure, metabase, reporting, slack and 8 more

Matijs Brinkhuis [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, best-practices, chrome-browser, mobile-web, progressive-web-app, web-app, geojson, mapbox-gl and 14 more

Michael Novotny [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, formik, higher-order-component, render-props, ecmascript, static-code-analysis, code-quality, linting and 21 more

Klaus Meinhardt [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, best-practices, code-analysis, code-quality, ecmascript, extensible, static-analysis, dynamic and 22 more

Mihira Jayasekera [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, design-systems, ember, storybook, ui-components, expo, ecmascript, static-code-analysis and 10 more

Brody McKee [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, design-systems, ember, storybook, ui-components, a11y, accessible, chakra-ui and 8 more

Brian Mock [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, activitypub, art, creatives, federated, mastodon, music, social-network and 8 more

Claire Dranginis [email protected]

OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics: digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis