Sentinal 1 - Interferometric Wide Swath. The Interferometric Wide (IW) swath mode is the main acquisition mode over land and satisfies the majority of service requirements. It acquires data with a 250 km swath at 5 m by 20 m spatial resolution (single look). IW mode captures three sub-swaths using Terrain Observation with Progressive Scans SAR ( TOPSAR ).

 
A mericans conducted a test of the third engine of the LGM-35A Sentinel nuclear missile at Arnold Air Force Base in Tennessee, reports the Defense News portal. …. Mgm bets

SentinelOne vs. Microsoft: MITRE Engenuity ATT&CK Evaluations. Walk through the latest MITRE Engenuity ATT&CK Evaluation step-by-step, and see how SentinelOne achieved record-breaking, AI-driven results compared to Microsoft—without constant delays, manual interventions, and configuration …Sentinel Missions. With the objectives of Land and Ocean monitoring, Sentinel-1 will be composed of two polar-orbiting satellites operating day and night, and will perform Radar imaging, enabling them to acquire imagery regardless of the weather. The first Sentinel-1 satellite was launched in April 2014. The objective of Sentinel-2 is land ...Continuity will be ensured by the launch of Sentinel-1C and Sentinel-1D. A new generation of Sentinel-1 satellites is being prepared, to take up the relay from the first generation. Discover Sentinel-1's mission, SAR instrument details, and processing algorithms. Explore applications in land, maritime monitoring, and emergency management.Etoposide Injection: learn about side effects, dosage, special precautions, and more on MedlinePlus Etoposide injection should be given only under the supervision of a doctor with ... Today. Your most sensitive data lives on the endpoint and in the cloud. Protect what matters most from cyberattacks. Fortify every edge of the network with realtime autonomous protection. Get a Demo. -2218. The Sentinel-1 mission includes C-band imaging operating in four exclusive imaging modes with different resolution (down to 5 m) and coverage (up to 400 km). It provides dual polarisation capability, very short revisit times and rapid product delivery. Sentinel-1 is a pair of European radar imaging (SAR) satellites launched in 2014 and 2016. Its 6 days revisit cycle and ability to observe through clouds makes it perfect for sea and land monitoring, emergency response due to environmental disasters, and economic applications. This dataset represents the global Sentinel-1 GRD archive, from ... SentinelOne started with an idea: to protect the things that matter most to our customers by pushing the boundaries of cybersecurity. Over the decades, we’ve hustled and innovated, we’ve grown and transformed, to create the world’s most advanced cybersecurity platform. Valuing trust, accountability, ingenuity, and unstoppable drive above ...Adapting to the evolving threat landscape requires a better approach than bolting on features and functionality. SentinelOne is purpose-built to handle what’s next. VMware . Carbon Black. Against today’s advanced cyber threats, analysts need to prevent, detect, remediate, and hunt with agility—without being hindered by …Changzhou Xingyu Automotive Lighting Systems News: This is the News-site for the company Changzhou Xingyu Automotive Lighting Systems on Markets Insider Indices Commodities Currenc...The Sentinel-1 is equipped with twin polar orbiting satellites designed to provide a spatial data for environment and security warranting, global economic and business growth. The satellites are to …Dec 11, 2563 BE ... How to Download Sentinel-1 | InSAR Time-series Data | SLCs | Monitoring Deformations Settlement Subsidence Snap Sarscape.Kenyan authorities claim there was a deliberate attempt to conceal the source, location, disposition and movement of the funds. Flutterwave’s controversy seems to never end. On Jul...Sentinel-1 can play an important role in sustainable forest management with clear-cut and partial-cut detection, forest type classification, biomass estimation and disturbance detection. For climate change, mapping of forest fire scars can be an important part of mapping the carbon history of a forest and plays a critical role in …Rakuten has announced its second weeklong sale for members, offering significant cash-back discounts at hundreds of different retailers. We may be compensated when you click on pro...Dec 11, 2563 BE ... How to Download Sentinel-1 | InSAR Time-series Data | SLCs | Monitoring Deformations Settlement Subsidence Snap Sarscape.The Sentinel-1 mission provides data from a dual-polarization C-band Synthetic Aperture Radar (SAR) instrument. SAR instruments are capable of acquiring meaningful data in all weather conditions (even clouds) during daytime and nighttime. Sentinel-1 data is used across many domains, including maritime activity, sea-ice …Rakuten has announced its second weeklong sale for members, offering significant cash-back discounts at hundreds of different retailers. We may be compensated when you click on pro...Mar 14, 2563 BE ... How to make DEM from Sentinel - 1 Imagery using Interferometry approach and ESA-SNAP Software. Read the information in the early part of the ...Double-click the . zip file in your Downloads folder, double-click the . SAFE file, double-click the measurement folder and highlight the desired .tiff file. Under the Compressed Folder Tools menu (which appears when you browse into a zip file), click the Extract button, and select the Extract To… option.The Sentinel-1 SentiWiki collects a detailed description of the mission purposes and applications, an insight on the SAR Instrument characteristics and a thorough …Unlike legacy AV and first-generation EDR, SentinelOne offers the advanced security features the SOC needs to protect workloads running on Windows Server endpoints across multiple clouds via one simple SaaS solution built for performance and automation. Your hybrid cloud business is complex. Workload security shouldn’t be. Unlike legacy AV ...The SentinelOne Singularity security platform empowers SOC & IT Operations Teams with a more efficient way to protect information assets against today’s sophisticated threats.Overview of S1 Applications. Sentinel-1 delivers radar imagery for numerous applications. SAR images are the best way of tracking land subsidence and … SentinelOne Singularity is an enterprise cybersecurity platform which offers unified prevention, detection, and response across a security estate. Singularity simplifies modern endpoint, cloud, and identity protection through one centralized, autonomous platform for enterprise cybersecurity. SentinelOne Singularity makes machine-speed decisions ... With the launch of Sentinel-1 in 2014, a new era of openly accessible spaceborne radar imagery was begun, and its potential has been demonstrated throughout all fields of applications. However, while interferometric approaches to detect surface deformations are continuously being published, only a few studies address the derivation of digital …27633 views 49 likes. ESA / Applications / Observing the Earth / Copernicus / Sentinel-1. The Sentinel-1 mission is designed as a two-satellite constellation. The identical satellites orbit Earth 180° apart and at an altitude of almost 700 km. This configuration optimises coverage, offering a global revisit time of just six days.Revenue increased 92% year-over-year ARR up 88% year-over-year SentinelOne, Inc. (NYSE: S) today announced financial results for the fourth quarter of fiscal year 2023 ended January 31, 2023. “We continued to deliver leading growth and margin improvement, a result of stronger execution and our competitive …Microsoft vs SentinelOne. Based on verified reviews from real users in the Endpoint Protection Platforms market. Microsoft has a rating of 4.4 stars with 1547 reviews. SentinelOne has a rating of 4.8 stars with 1465 reviews. See side-by-side comparisons of product capabilities, customer experience, pros and cons, and … Geographical Coverage. A single SENTINEL-1 satellite will be able to map the entire world once every 12 days. The two-satellite constellation offers a 6 day exact repeat cycle. The constellation will have a repeat frequency (ascending/descending) of 3 days at the equator, less than 1 day at the Arctic and is expected to provide coverage over ... SentinelOne agent is a software program, deployed to each endpoint, including desktop, laptop, server or virtual environment, and runs autonomously on each device, without reliance on an internet connection. The agent sits at the kernel level and monitors all processes in real time. Water stock monitoring is a major issue for society on a local and global scale. Sentinel-1&2 satellites provide frequent acquisitions to track water surface dynamics, proxy variables to enable water surface volume monitoring. How do we combine such observations along time for each sensor? What advantages and disadvantages of single …No. of Employees: 1001-5000. Company Description: SentinelOne provides autonomous security solutions for various IT environments. The company's main focus is on endpoint security, cloud security, and identity security. It operates on an AI-powered platform that brings prevention, detection, response, remediation, and forensics under one umbrella.Sentinel Missions. With the objectives of Land and Ocean monitoring, Sentinel-1 will be composed of two polar-orbiting satellites operating day and night, and will perform Radar imaging, enabling them to acquire imagery regardless of the weather. The first Sentinel-1 satellite was launched in April 2014. The objective of Sentinel-2 is land ...Aug 16, 2564 BE ... Dr. Eric Bullock (US Forest Service) shows how Google Earth Engine can be used to process radar data from the Copernicus Sentinel-1 platform ...Apr 10, 2563 BE ... Take a deep dive into one of the more unique datasets in the Earth Engine data catalog. This session provides an introduction to Synthetic ... Today. Your most sensitive data lives on the endpoint and in the cloud. Protect what matters most from cyberattacks. Fortify every edge of the network with realtime autonomous protection. Get a Demo. -2218. Life at SentinelOne. Join a team that’s doing what no other company has done before in record time. We’re on a mission to defeat every cyberattack with autonomous technology. We're changing cybersecurity to give enterprises the advantage over tomorrow. Take your career to new places with a winning culture … Overview. Sentinel 1 is an imaging radar mission conducted by the European Space Agency providing continuous all-weather, day-and-night imagery at C-band. The Sentinel-1 constellation provides high reliability, improved revisit time, geographical coverage and rapid data dissemination to support operational applications in the priority areas of marine monitoring, land monitoring and emergency ... Etoposide Injection: learn about side effects, dosage, special precautions, and more on MedlinePlus Etoposide injection should be given only under the supervision of a doctor with ...Sentinel-1 can play an important role in sustainable forest management with clear-cut and partial-cut detection, forest type classification, biomass estimation and disturbance detection. For climate change, mapping of forest fire scars can be an important part of mapping the carbon history of a forest and plays a critical role in …S Earnings Date and Information. SentinelOne last posted its earnings data on March 13th, 2024. The reported ($0.02) earnings per share (EPS) for the …Oct 17, 2565 BE ... Im Frühsommer 2023 soll der Satellit Sentinel 1-C ins All starten. Tritt er am Ende seiner Lebensdauer in die Erdatmosphäre ein, ...Data Sheet. SentinelOne Singularity Cloud Security for Amazon Web Services. Data Sheet. SentinelOne CISO Checklist for Enterprise Security. Data Sheet. SentinelOne Singularity Platform. Data Sheet. Threat Detection for Amazon FSx ONTAP.Satellite: Sentinel-1D. 4th flight unit of the Sentinel-1 programme, providing SAR observation. Main mission: all-weather ocean and land high resolution multi-purpose observation. Data available from centres of the Payload Data Ground Segment (PDGS).The SENTINEL-1 mission is designed to provide enhanced revisit frequency, coverage, timeliness and reliability for operational services and applications requiring long time series. The mission will provide an operational interferometry capability through stringent requirements placed on attitude accuracy, attitude and orbit knowledge, and data-take …Kelvin, a company born to solve steam radiator night sweats, is expanding beyond smart radiator covers with $30 million in fresh funds. Radiator Labs, a company born to solve steam...The Copernicus missions (Sentinel-1, -2, and -3) represent the EU contribution to GEOSS (Global Earth Observation System of Systems). Sentinel-1 is composed …SentinelOne Singularity™ is a cybersecurity AI platform that detects, prevents, and responds to cyber attacks at machine speed, empowering organizations to secure endpoints, cloud workloads, containers, identities, and mobile and network-connected devices with speed, accuracy and simplicity. The SentinelOne Singularity™ …If you have online skills and know how to make money on Fiverr, your earning potential is endless. Receive Stories from @nomadworld Get started with this writing templateMay 17, 2563 BE ... การดาวน์โหลดภาพดาวเทียม Sentinel-1 จากเว็บไซต์ scihub.copernicus.eu #สาขาภูมิศาสตร์_มหาวิทยาลัยนเรศวร #คณะเกษตรศาสตร์_มหาวิทยาลัยนเรศวร #แผนที่ #โดรน ...Overview of S1 Applications. Sentinel-1 delivers radar imagery for numerous applications. SAR images are the best way of tracking land subsidence and …Sentinel Missions. With the objectives of Land and Ocean monitoring, Sentinel-1 will be composed of two polar-orbiting satellites operating day and night, and will perform Radar imaging, enabling them to acquire imagery regardless of the weather. The first Sentinel-1 satellite was launched in April 2014. The objective of Sentinel-2 is land ...Sentinel-1 - Mission Summary The spacecraft carries a single C-SAR payload , deployable solar array and large data storage. The mission is able to …Aug 3, 2022 · The Sentinel-1 Spacecraft Operations Manager, Alistair O’Connell, added, “We have Sentinel-1B under control, all other systems except the power affected unit, which prevents the radar from being switched on, continue to function nominally and we perform regular monitoring of the spacecraft health and routine orbit control manoeuvres. In contrast to legacy antivirus technology, next-generation antivirus (NGAV) advances threat detection by finding all symptoms of malicious behavior rather than focusing on looking only for known malware file attributes. Traditional antivirus software, while sometimes effective, doesn’t track and inspect a potential virus. For this reason, there is a large research effort to develop soil moisture products at higher resolution using, for instance, data acquired by the new ESA's Sentinel missions. The objective of this study is twofold. First, it presents the validation status of a pre-operational soil moisture product derived from Sentinel-1 at 1 km resolution. Aug 3, 2022 · Sentinel-1 operates in four exclusive acquisition modes – Stripmap (SM), Interferometric Wide swath (IW), Extra-Wide swath (EW), and Wave (WV), each having advantages and disadvantages. The most widely used is the IW mode. Both Sentinel-1 spacecraft carry a single SAR instrument operating at a center frequency of 5.405 GHz. Sentinel-1 is a pair of European radar imaging (SAR) satellites launched in 2014 and 2016. Its 6 days revisit cycle and ability to observe through clouds makes it perfect for sea and land monitoring, emergency response due to environmental disasters, and economic applications. This dataset represents the global Sentinel-1 GRD archive, from ... Use Geomatica to visualize and interpret information contained in dual channel Sentinel-1 imagery. Freely available imagery was downloaded from the European ... Sentinel-1 is a polar-orbiting, all-weather, day-and-night radar imaging mission for land and ocean services. Sentinel-1A was launched on 3 April 2014 and Sentinel-1B on 25 April 2016. Sentinel-1A was launched on 3 April 2014 and Sentinel-1B on 25 April 2016. The Sentinel-1 L1C collection within the Copernicus Data Space Ecosystem originates from the operational Copernicus processing, i.e. data previously accessible on the Copernicus Open Access Hub (formerly known as Sentinels Scientific Data Hub). These products can be differentiated by the OData and OpenSearch …Apr 30, 2566 BE ... In this tutorial, we will show you how to download Sentinel-1 images from the European Space Agency's (ESA) data hub. Sentinel-1 is a radar ...Apr 3, 2014 · Sentinel-1A: Soyuz rocket, launched 3 April 2014, from Kourou, French Guiana. Orbit: Polar, sun-synchronous at an altitude of 693 km. Revisit time: Six days with two-satellite constellation of Sentinel-1A and 1B. Before 1B launched, revisit time for Sentinel-1A alone was 12 days. SentinelOne Singularity unifies and extends detection and response capability across multi-. ple security layers including endpoint, cloud, identity, network, and mobile providing security. teams with centralized end-to-end enterprise visibility, powerful analytics, and automated. response across a large cross-section of the …Sentinel-1, Sentinel-2, Sentinel-3, Sentinel-5P; Discover more news; The Copernicus Data Space Ecosystem. Largest EO data offering in the world, with discovery and download capabilities; A set of data processing tools to extract objective information and conduct public, private or commercial activities;The Open Access Hub provides asynchronous access to all historic data, which are restored for download within 1 hour of their request and available for download via https for the subsequent 3 days at least. The product catalogues of the Data Hub services provide seamless access to the full set of data, searchable via the Graphical User ... The SENTINEL-1 constellation offers an improvement in revisit time over ERS-1/2 and ENVISAT ASAR, and a continuity of wide area coverage with ENVISAT ASAR, but achieving higher resolution and potentially global dual polarisation coverage over landmasses. Each SENTINEL-1 satellite will be in a near-polar, sun-synchronous orbit, with a 12-day ... Adding Sentinel-1 data did little to improve classification accuracy, and in many cases reduced overall accuracy compared to individual sensor models that used Sentinel-2 or Planet imagery, similar to Azzari et al. . The highest classification accuracy in both the sowing period and full period models was obtained with the three-sensor model.SentinelOne's blog offers the latest news around cybersecurity, risk reduction, threat intelligence, and more. Sign up for our weekly digest to stay updated.Oct 17, 2565 BE ... Im Frühsommer 2023 soll der Satellit Sentinel 1-C ins All starten. Tritt er am Ende seiner Lebensdauer in die Erdatmosphäre ein, ... Microsoft Sentinel is a scalable, cloud-native solution that provides: Security information and event management (SIEM) Security orchestration, automation, and response (SOAR) Microsoft Sentinel delivers intelligent security analytics and threat intelligence across the enterprise. With Microsoft Sentinel, you get a single solution for attack ... Mission Information. The Sentinel-1 imagery is provided by two (see the note below) polar-orbiting satellites, operating day and night performing C-band synthetic aperture radar imaging, enabling them to acquire imagery regardless of the weather. Main applications are for monitoring sea ice, oil spills, marine winds, waves & currents, …Sentinel-2 L2A imagery taken on August 18, 2018Sentinel-2 is an Earth observation mission from the Copernicus Programme that systematically acquires optical imagery at high spatial resolution (10 m to 60 m) over land and coastal waters. The mission is currently a constellation with two satellites, Sentinel-2A and Sentinel-2B; a third satellite, Sentinel-2C, is currently undergoing testing in …Main Download. Mirror Download. Thanks to the open-source license, we create the SNAP installers with the multi-platform installer builder install4j from ej-Technologies. If you later decide to install an additional toolbox to your installation …THE WOODLANDS, Texas, Feb. 28, 2023 /PRNewswire/ -- Huntsman Corporation (NYSE: HUN) announced today that it has completed the sale of its Textile... THE WOODLANDS, Texas, Feb. 28,...End of Life for TLS 1.0 Support. Transport Layer Security (TLS) is a common and useful encryption for data in transit. It helps ensure the integrity and confidentiality of data being transmitted across the Internet. However, there are increasing attacks (such as Heartbleed) against the older version of TLS, …Sentinel-1 is in a near-polar, sun-synchronous orbit with a 12 day repeat cycle and 175 orbits per cycle for a single satellite. Both Sentinel-1A and Sentinel-1B share the same orbit plane with a 180° orbital phasing difference. With both satellites operating, the repeat cycle is six days. Figure 1: Sentinel-1 Constellation.Never let a storage limit or a query limit prevent you from protecting your enterprise. Start using Microsoft Sentinel immediately, automatically scale to meet your organizational needs, and pay for only the resources you need. As a cloud-native SIEM, Microsoft Sentinel is 48 percent less expensive and 67 percent faster to …A Powerful and Comprehensive XDR platform with Some Caveats. Reviewer Function: IT; Company Size: 50M - 250M USD; Industry: IT Services Industry; The overall experience of utilizing an Singularity XDR Endpoint Protection Platform is designed to provide a strong defense against a wide range of cyber …27633 views 49 likes. ESA / Applications / Observing the Earth / Copernicus / Sentinel-1. The Sentinel-1 mission is designed as a two-satellite constellation. The identical satellites orbit Earth 180° apart and at an altitude of almost 700 km. This configuration optimises coverage, offering a global revisit time of just six days.Sentinel-1 - Mission Summary The spacecraft carries a single C-SAR payload , deployable solar array and large data storage. The mission is able to …SentinelOne’s 24/7/365 award-winning Managed Detection and Response (MDR) service, Vigilance, works for you to deliver a personalized approach to managing your security posture. We handle the alerts. We make decisions. We send reports. And we pick up the phone to call you and explain what’s going on in your environment.Main Download. Mirror Download. Thanks to the open-source license, we create the SNAP installers with the multi-platform installer builder install4j from ej-Technologies. If you later decide to install an additional toolbox to your installation …→ Science Toolbox Exploitation Platform. Menu. STEP; Toolboxes. SNAP; Sentinel-1 Toolbox; Sentinel-2 ToolboxOct 17, 2565 BE ... Im Frühsommer 2023 soll der Satellit Sentinel 1-C ins All starten. Tritt er am Ende seiner Lebensdauer in die Erdatmosphäre ein, ...SENTINEL-1 SENTINEL-2 SENTINEL-3 SENTINEL-5P News. EXP LORE. Sentinel News Maintenance News Videos Meet the Team Calendar Copernicus Operations Collaborative Ground Segment SentiWiki. All you want to know about Sentinel Missions at a glance. GO TO SENTIWIKI. Sentinel Success ...All Sentinel-1 SAR imagery used in this study are Level 1 Ground Range Detected at High resolution (GRDH) acquired in Interferometric Wide (IW) swath mode with both VV (vertical transmitting, vertical receiving) and VH (vertical transmitting, horizontal receiving) polarizations. Only VV polarized scenes are considered in this study.Jul 19, 2566 BE ... Welcome back to our YouTube channel, where we dive deep into the fascinating world of space remote sensing and GIS!

Sentinel Missions. With the objectives of Land and Ocean monitoring, Sentinel-1 will be composed of two polar-orbiting satellites operating day and night, and will perform Radar imaging, enabling them to acquire imagery regardless of the weather. The first Sentinel-1 satellite was launched in April 2014. The objective of Sentinel-2 is land ... . Watch the fox and the hound

sentinal 1

The digital chirp generator and selectable receive filter bandwidths allow efficient use of on-board storage considering the ground range resolution dependence on incidence angle. The key parameters of the SENTINEL-1 C-SAR instrument include: Centre frequency. 5.405 GHz (corresponding to a wavelength of ~5.5465763cm cm) Main Download. Mirror Download. Thanks to the open-source license, we create the SNAP installers with the multi-platform installer builder install4j from ej-Technologies. If you later decide to install an additional toolbox to your installation …The Terracotta Army was commissioned under Emperor Qin as protection for the afterlife. Learn why the Terracotta Army isn't as unique as it is massive. Advertisement On the morning...Aug 3, 2022 · The Sentinel-1 Spacecraft Operations Manager, Alistair O’Connell, added, “We have Sentinel-1B under control, all other systems except the power affected unit, which prevents the radar from being switched on, continue to function nominally and we perform regular monitoring of the spacecraft health and routine orbit control manoeuvres. If you have online skills and know how to make money on Fiverr, your earning potential is endless. Receive Stories from @nomadworld Get started with this writing templateSentinel-1 Data Products Sentinel data products are made available systematically and free of charge to all data users including the general public, scientific and commercial users. The data will be delivered within an hour of reception for Near Real-Time (NRT) emergency response, within three hours for NRT priority areas and within 24 hours ...Data Sheet. SentinelOne Singularity Cloud Security for Amazon Web Services. Data Sheet. SentinelOne CISO Checklist for Enterprise Security. Data Sheet. SentinelOne Singularity Platform. Data Sheet. Threat Detection for Amazon FSx ONTAP.Use Geomatica to visualize and interpret information contained in dual channel Sentinel-1 imagery. Freely available imagery was downloaded from the European ...Sentinel-1 operates in four exclusive acquisition modes: Stripmap (SM) Interferometric Wide swath (IW) Extra-Wide swath (EW) Wave (WV). The Sentinel-1 C-band SAR instruments supports operation in single …As water bodies strongly absorb light in visible to infrared electromagnetic spectrum, NDWI uses green and near infrared bands to highlight water bodies. It is sensitive to built-up land and can result in over-estimation of water bodies. The index was proposed by McFeeters, 1996. Sentinel-2 NDWI = (B03 - B08) / (B03 + B08)or macOS, or cloud workloads on Linux and Kubernetes, SentinelOne. provides a single security console to manage them all. Record Breaking ATT&CK Evaluation. • 100% Protection. 100% Detection. • Top Analytic Coverage 3 Years Running. • 100% Real-time with Zero Delays. A Leader in the 2021. Magic Quadrant for Endpoint.Data Sheet. SentinelOne Singularity Cloud Security for Amazon Web Services. Data Sheet. SentinelOne CISO Checklist for Enterprise Security. Data Sheet. SentinelOne Singularity Platform. Data Sheet. Threat Detection for Amazon FSx ONTAP.A selection of wavelengths or range of radar frequencies. For example Sentinel-1 operates at C-band (central frequency of 5.404 GHz). Other spaceborne SAR's operate at L-band (1.3 GZ) or X-band (9.6 GHz). Beam. A selection of wavelengths or range of radar frequencies. For example Sentinel-1 operates at C-band (central …The Synthetic Aperture Radar (SAR) satellite Sentinel-1A (S-1A, Fletcher et al., 2012, Torres et al., 2012) is the first satellite of the Copernicus programme. It was launched on April 3, 2014 from Kourou, French Guiana. After a six-month commissioning phase the satellite was set operational in October 2014.An unexpected power outage occurred on Friday 22 March afternoon at the Svalbard ground station which significantly affected the nominal data ….

Popular Topics