openPR Logo

Press Releases by Category Science & Education

RSS-Newsfeed

Best Accounting Assignment Help UK Students @50% Off

Are you looking for Accounting Assignment Help in UK? Worry not, Our Accounting Assignment Writer Offers the best accounting assignment writing services to students. Contact us Now! https://www.accountingassignmentwriter.com/contact Accounting is a challenging field that demands precision, analytical thinking, and a solid grasp of financial concepts. Whether it's mastering complex financial reports, tax regulations, or balance sheets, many students find themselves in need of expert guidance. That's where the best accounting assignment

Submit Your Assignment with AssignmentHelperIE to Get a Perfect Score

AssignmentHelperIE is dedicated to reducing the amount of stress students face in their everyday academic life. With the increasing demands of coursework, many students feel overwhelmed while trying to grow. To support them, this reputable agency offers them reliable and professional assignment help services specifically designed for Irish students. Their dedicated team works tirelessly to ensure that every student can submit exquisite quality assignments and secure flying grades. Professional and Expert

Water Desalination Equipment Market Exploring Future Growth Potential,New Develo …

As per the report published by Allied Market Research, the global water desalination equipment market generated $6.9 billion in 2020, and is projected to reach $16.6 billion by 2030, registering a CAGR of 9.2% from 2021 to 2030. Increased use of water movement from desalination to energy generation, reducing of freshwater resource levels, and increased demand for water independence have boosted the growth of the global water desalination equipment market. However,

Chlorinated Polyvinyl Chloride Market 2022 - Growth Opportunities, Top Countries …

According to the report published by Allied Market Research, the global chlorinated polyvinyl chloride market was estimated at $5.1 billion in 2021 and is expected to hit $9.9 billion by 2031, registering a CAGR of 7.0% from 2022 to 2031. The report provides a detailed analysis of the top investment pockets, top winning strategies, drivers & opportunities, market size & estimations, competitive landscape, and evolving market trends. The market study

Composite Preforms Market Pioneering Sustainable Solutions and Industry Growth T …

According to the report published by Allied Market Research, the global composite preforms market was estimated at $239.3 million in 2021 and is expected to hit $433.1 million by 2031, registering a CAGR of 6.1% from 2022 to 2031. The report provides a detailed analysis of the top investment pockets, top winning strategies, drivers & opportunities, market size & estimations, competitive landscape, and evolving market trends. The market study is

Best Finance Assignment Help UK By Top Finance Experts

Struggling with your finance assignments? Our professional writing service offers top-notch assistance for finance assignments in the UK. Order now! Whether it's understanding complex financial theories, mastering statistical analysis, or navigating the intricate world of investment strategies, finance can be a challenging subject for many students. Fortunately, you don't have to face these challenges alone. Our Best Finance Assignment Help UK service connects you with top finance experts who are

Fire Resistant Fabrics Market will Revenue to Cross 5599.05 million by 2032 | Re …

Global Fire Resistant Fabrics Market Visions [2024-2032] The Global "Fire Resistant Fabrics Market Size" 2024 report delivers a comprehensive market analysis using advanced analytical tools such as Porter's Five Forces and PESTEL Analysis. Fire Resistant Fabrics Market size was 3980.7 million in 2023 and is projected to touch 4131.97 million in 2024 to 5599.05 million by 2032, exhibiting a CAGR of 3.8% during the forecast period [2024-2032]. An in-depth analysis of

Glutamic Acid Market Top Company Analysis, Trends, Technology and Forecast 2021- …

Allied Market Research published a report, titled, "Glutamic Acid Market by End Use Industry (Pharmaceutical, Cosmetics and Personal Care, Food Industry, and others): Global Opportunity Analysis and Industry Forecast, 2021-2030". According to the report, the global glutamic acid industry generated $9.9 billion in 2020, and is anticipated to generate $16.6 billion by 2030, witnessing a CAGR of 5.4% from 2021 to 2030. Prime determinants of growth Increased demand from food industry and

Automotive Silicone Market Size, Trends and Growth Analysis during Forecast Peri …

Allied Market Research has recently published a report, titled, "Automotive Silicone Market by Type (Elastomers, Resins, Gels, Others), by Application (Interior and Exterior, Engines, Electrical Systems, Others): Global Opportunity Analysis and Industry Forecast, 2023-2032". According to the report, the global automotive silicone market generated $2.7 billion in 2022, and is anticipated to generate $6.1 billion by 2032, witnessing a CAGR of 8.5% from 2023 to 2032. Automotive silicones, high-performance polymers

Metallic Stearates Market 2024 Size, Analysis, Revenue, Price, Market Share, For …

According to the report published by Allied Market Research, the global metallic stearates market generated $4.0 billion in 2021, and is projected to reach $6.2 billion by 2031, growing at a CAGR of 4.7% from 2022 to 2031. The report offers a detailed analysis of the top winning strategies, evolving market trends, market size and estimations, value chain, key investment pockets, drivers & opportunities, competitive landscape, and regional landscape. The

Nanochemicals Market Size, Share, Trends, and Analysis: 2021-2028

As per the report published by Allied Market Research, the global nanochemicals market generated $5.4 billion in 2020, and is expected to reach $8.3 billion by 2028, growing at a CAGR of 4.3% from 2021 to 2028. Rise in demand for nanochemicals in electronics and semiconductors applications and growth of paints & coatings industry in Asia-Pacific drive the growth of the global nanochemicals market. However, low availability of raw materials hinders

Glass Fiber Reinforced Plastics (GFRP) Composites Market Business Strategy, Top …

Allied Market Research published a report, titled, "Glass Fiber Reinforced Plastic (GFRP) Composites Market by Resin Type (Polyester Resin, Vinyl Ester Resin, Epoxy Resin, Polyurethane Resin, and Others), Process (Manual Process, Continuous Process, Compression Molding, and Injection Molding), and End-Use Industry (Aerospace and Defense, Construction, Wind Energy, Automotive, Electrical and Electronics, and Others): Global Opportunity Analysis and Industry Forecast, 2022-2032". According to the report, the global glass fiber reinforced plastic

Dr. Yorell Manon-Matos Scholarship Announces 2024 Winner

Image: https://www.getnews.info/wp-content/uploads/2024/10/1729192293.png Dr. Yorell Manon-Matos Sioux Falls, South Dakota - The Dr. Yorell Manon-Matos [https://dryorellmanonmatos.com/] Scholarship, established by renowned hand surgeon Dr. Yorell Manon-Matos, is proud to announce Janet L. from the University of Massachusetts as the recipient of its prestigious 2024 scholarship award. Dr. Manon-Matos, a board-certified hand surgeon with over 15 years of experience, founded the scholarship with a unwavering commitment to supporting the next generation of healthcare professionals. Dedicated to

Family of Dr. Suara Adediran Releases Insightful Past Interview Honoring His Leg …

The family of the late Dr. Suara Adediran, an esteemed chemist, educator, and mentor, is honored to release a recorded interview showcasing his insights, experiences, and dedication to the scientific community. This interview, conducted before Dr. Adediran's passing, offers a rare glimpse into the mind of a man whose career and personal life were dedicated to inspiring curiosity, advancing scientific knowledge, and mentoring the next generation of scientists. Born in Oyo

Dr. Andrew Kelly Announces Prestigious Scholarship for Future Doctors, Supportin …

Image: https://www.getnews.info/wp-content/uploads/2024/10/1729181664.jpeg Dr. Andrew Kelly North Carolina Dentist Andrew Kelly Gives Back With Scholarship Fund Advance, NC - The Dr. Andrew Kelly [https://drandrewkelly.com/] Scholarship for Future Doctors is now open for applications, providing a unique opportunity for aspiring medical professionals to receive financial support as they pursue careers dedicated to advancing healthcare. Founded by Dr. Andrew Wayne Kelly, D.D.S., a renowned Implantologist and Dental Implant Specialist, this $1,000 one-time scholarship is aimed at

Rising Star Aven Osborne Launches Personal Website to Showcase Athletic Achievem …

Image: https://www.getnews.info/wp-content/uploads/2024/10/1729180721.jpeg Aven Osborne, Lee's Summit, MO, USA Aven Osborne, a standout student-athlete and community leader from Lee's Summit, Missouri, is excited to announce the launch of her brand-new personal website: www.avenosborne.com Aven Osborne, a standout student-athlete and community leader from Lee's Summit, Missouri, is excited to announce the launch of her brand-new personal website: www.avenosborne.com [http://www.avenosborne.com]. The website is a hub where Aven's journey in athletics, academics, and community service is showcased,

ICARM, India announces One-Week Guided Workshop on AI-Powered Manuscript Writing …

The Interdisciplinary Center for Advanced Research Methods (ICARM), India, in collaboration with Sevas Publishing and renowned international journals, is pleased to announce the One-Week Guided Workshop on AI-Powered Manuscript Writing and Journal Submission. The workshop, which will take place from 1st November to 10th November 2024, is designed to equip participants with the necessary skills to write, refine, and successfully submit high-quality manuscripts to top international journals. Note: All participants are

The Cultural Assembly Open Call Invites DEI Leaders to Collaborate on Virtual Re …

London, 17.10.24 - The Cultural Assembly has announced an open call for Diversity, Equality, Inclusion and Accessibility (DEI) Leaders to collaborate with them in the design of an ecosystem of resources and to support the delivery of DEI training in the workplace. The program called PlayNicely™ is an open collaboration program for DEI Leaders to co-create an evolving toolkit of resources. The game-changing program supports workplace Initiatives supercharged by multi-disciplinary

Smart Agriculture Market : An Overview

Introduction: Smart agriculture, also known as precision agriculture, integrates advanced technologies like IoT, artificial intelligence, drones, and big data analytics to optimize farming practices. These technologies help improve crop yields, reduce costs, and promote sustainability by allowing farmers to make data-driven decisions. Smart agriculture covers several areas, including precision farming, livestock monitoring, greenhouse farming, irrigation control, and more. The increased demand for food due to the growing global population, coupled with

Coursework Help & Writing Services by Top UK Writers

Looking for reliable coursework help? Get expert help from professional writers to excel in your academic help. Navigating the challenges of higher education can be daunting, especially when faced with the rigorous demands of coursework. From extensive research papers to complex assignments, students often find themselves overwhelmed by deadlines and expectations. That's where professional coursework help and writing services come in, offering tailored support from top UK writers who understand

Phenolic Resin Market 2024: Latest Trends, Share, Industry Size, Growth Analysis …

Allied Market Research published a report, titled, "Phenolic Resin Market by Type (Resol and Novolac), Application (Adhesives & Binding, Foundry, Molding, Laminates, Coatings, Foam, and Others) and End-use Industry (Electrical & Electronics, Automotive, Lumber, Building & Construction, Others): Global Opportunity Analysis and Industry Forecast, 2021-2030". According to the report, the global Phenolic Resin industry generated $8.2 billion in 2020, and is anticipated to generate $12.6 billion by 2030, witnessing a

Antimicrobial Coatings Market is Projected To Exhibit Growth Rate 11.5% CAGR Dur …

According to the report published by Allied Market Research, the global antimicrobial coatings market generated $3.7 billion in 2020, and is projected to reach $11.0 billion by 2030, growing at a CAGR of 11.5% from 2021 to 2030.The report provides an in-depth analysis of the top investment pockets, top winning strategies, drivers & opportunities, market size & estimations, competitive scenario, and wavering market trends. Extensive application of antimicrobial coatings in catheters,

Liquid Packaging Carton Market Analysis in 2023: Identifying Opportunities and C …

Allied Market Research published a report, titled, "Liquid Packaging Carton Market by Carton Type (Brick Liquid Cartons, Gable Top Cartons, Shaped Liquid Cartons), by Shelf Life (Long Shelf Life Cartons, Short Shelf Life Cartons), by End Use (Liquid Dairy Products, Non-Carbonated Soft Drinks, Liquid Foods, Alcoholic Drinks, Others) Global Opportunity Analysis and Industry Forecast, 2023-2032 ". According to the report, The liquid packaging carton market was valued at $19.8 billion

Automotive Lubricants Market Size, Trends, Share and Growth 2023-2032

Allied Market Research published a report, titled, "The Automotive Lubricants by Base Oil (Mineral Oil, Synthetic, Semisynthetic, and Bio-based Lubricants), Vehicle Type (Passenger Cars, Light Commercial Vehicles (LCVs), Heavy Commercial Vehicles (HCVs), and Others), and Application, (Engine Oil, Gear & Brake oil, Transmission Fluids, Greases, and Others). Global Opportunity Analysis and Industry Forecast, 2023-2032". According to the report, the global automotive lubricants industry generated $77.8 billion in 2022, and is

Best Law Assignment Help In Uk

Access professional law assignment help in the UK from leading experts. Secure outstanding grades and enhance your legal education with our trusted and budget-friendly solutions. In today's competitive academic landscape, law students in the UK face unique challenges as they strive to excel in their studies. The rigorous demands of legal education often leave students overwhelmed, leading them to seek support in the form of professional law assignment help. This article

Get Best Assignment Help in Kuala Lumpur to Elevate Your Academic Performance

Do you need help in finding a trustworthy and the Best Assignment Help in Kuala Lumpur? Don't look any further because we at Assignmenttask.com are the right choice for you! It might be challenging to juggle multiple tasks, deadlines, academic pressure, and personal responsibilities. However, you don't have to stress yourself by doing all the work alone! Get Help: https://assignmenttask.com/my/assignment-help-kuala-lumpur.html We at Assignmenttask.com provide the Best Assignment Help Kuala Lumpur that is especially

Hydrogel Market is Probable to Influence the Value of $45.7 Billion by 2033, Siz …

Allied Market Research published a report, titled, "Hydrogel Market by Raw Material Type (Synthetic, Natural and Hybrid), Composition (Polyacrylate, Polyacrylamide, Silicone-modified hydrogels, Agar and Others), Form (Amorphous and Semicrystalline), Product (Semicrystalline buttons, Amorphous Gels, Impregnated Gauze, Films and Matrices and Hydrogel Sheets), and Application (Contact Lenses, Hygiene Products, Wound Care, Drug Delivery, Tissue Engineering and Others): Global Opportunity Analysis and Industry Forecast, 2024-2033". According to the report, the hydrogel market

Sunflower Lecithin Market 2024 | Future Estimations to Determine the Imminent In …

Allied Market Research has recently released a comprehensive report titled "Sunflower Lecithin Market by Nature (Organic, Conventional), By Form (Liquid, Powder, Others), By End Use Industry (Food and Beverage, Cosmetics, Nutraceutical, Others): Global Opportunity Analysis and Industry Forecast, 2023-2032". According to the report, the global sunflower lecithin market achieved a value of $324.6 million in 2018 and is anticipated to reach $754.8 million by 2032, with a compound annual growth

Potassium Sulfate Market Set to Reach $7.2 Billion in Revenues by 2032

Allied Market Research published a report, titled, "Potassium Sulfate Market by Form (Solid, Liquid), By Purity (Up To 99%, Greater Than 99%), By End User Industry (Agriculture, Industrial, Pharmaceuticals, Food and Beverages, Others)". According to the report, the potassium sulfate market was valued at $4.5 billion in 2022 and is estimated to reach $7.2 billion by 2032, exhibiting a CAGR of 4.8% from 2023 to 2032. Potassium sulfate is mainly utilized

Mylar Market Size Report Forecast -2031 | Growing at CAGR of 6.9%

According to the report published by Allied Market Research, the global mylar market was estimated at $10.7 billion in 2021 and is expected to hit $20.4 billion by 2031, registering a CAGR of 6.9% from 2022 to 2031. The report provides a detailed analysis of the top investment pockets, top winning strategies, drivers & opportunities, market size & estimations, competitive landscape, and evolving market trends. The market study is a

Best Packet Tracing Assignment Help

Packet tracing is an essential concept in computer networking, providing a means to monitor and analyze network traffic. For students pursuing studies in networking and IT, mastering packet tracing tools and methodologies is a fundamental skill. However, completing packet tracing assignments can sometimes be a challenge, as it involves understanding intricate network topologies, protocols, and Cisco configurations. For students in need of assistance, packet tracing assignment help services can be

Yoga for Managing Ischemic Heart Disease (IHD): A Holistic Approach Explained by …

Ischemic Heart Disease (IHD), also known as coronary artery disease, is a condition where narrowed or blocked arteries reduce blood flow to the heart, leading to chest pain (angina), heart attacks, and other serious complications. With millions affected globally, IHD remains one of the leading causes of death. While conventional treatments include medications and lifestyle changes, many are turning to holistic practices like yoga to help manage this chronic condition. At

Best Nursing Assignment Help In UK | Get Up To 50% Off

Get best nursing assignment writing services from UK's leading nursing assignment help and ensure your academic success. As nursing students in the UK face increasingly demanding academic schedules, the need for professional support has never been more essential. For students striving to excel in their courses, balancing practical placements, personal commitments, and academic assignments can become overwhelming. This is where Nursing Assignment Help UK services by Online Nursing Writers come into

Step-by-Step Guide to Becoming a Pilot with Flying Star Aviators

Dreaming of becoming a pilot? Flying Star Aviators makes it possible! This guide explains the simple steps you need to follow, from enrolling in flight school to earning your pilot license. Whether you're just starting or ready to take off, Flying Star Aviators will help you achieve your aviation goals with the right training and support. visit for more: www.flystar.co.in Dwarka sec 7, Near Ramphal Chowk New Delhi Best Pilot training institute

Electric Wheelchair Manufacturing Plant Project Report: Machinery Requirements, …

IMARC Group's "Electric Wheelchair Manufacturing Plant Project Report 2024: Industry Trends, Plant Setup, Machinery, Raw Materials, Investment Opportunities, Cost and Revenue" report provides a comprehensive guide on how to successfully set up an electric wheelchair manufacturing plant. The report offers clarifications on various aspects, such as unit operations, raw material requirements, utility supply, infrastructural needs, machinery models, labour necessities, transportation timelines, packaging costs, etc. In addition to the operational aspects, the

Innovative Mobile Applications for iOS and Android Are Released by Tech Leads IT

Tech Leads IT, a pioneer in the e-learning space, is thrilled to unveil its new mobile applications for Android and iOS devices. These apps reflect Tech Leads IT's commitment to offering cutting-edge and accessible education solutions, making it easier for students, professionals, and educators to access high-quality learning resources on the go. Whether aiming to develop new skills, earn certifications, or expand their knowledge base, the Tech Leads IT app

GEO Satellite Market 2024: Global Trends, Industry Insights, and Forecast

The Business Research Company recently released a comprehensive report on the Global GEO Satellite Market Size and Trends Analysis with Forecast 2024-2033. This latest market research report offers a wealth of valuable insights and data, including global market size, regional shares, and competitor market share. Additionally, it covers current trends, future opportunities, and essential data for success in the industry. According to The Business Research Company's, The GEO satellite market size

Malic Acid Market Research Report 2022-2031: Methodology and Insights

According to the report published by Allied Market Research, the global malic acid market garnered $187.6 million in 2021, and is estimated to generate $279.8 million by 2031, manifesting a CAGR of 4.1% from 2022 to 2031. The report provides an extensive analysis of changing market dynamics, major segments, value chain, competitive scenario, and regional landscape. This research offers a valuable guidance to leading players, investors, shareholders, and startups in

Calcium Citrate Market Size, Share, Growth Factors, Latest Trends, Future Demand …

According to the report published by Allied Market Research, the global calcium citrate market was estimated at $0.8 billion in 2021 and is expected to hit $1.2 billion by 2031, registering a CAGR of 3.7% from 2022 to 2031. The report provides a detailed analysis of the top investment pockets, top winning strategies, drivers & opportunities, market size & estimations, competitive landscape, and evolving market trends. The market study is

Reflective Tape Market Segmentation Application, Technology & Market Analysis Re …

According to the report published by Allied Market Research, the global reflective tape market garnered $3.5 billion in 2021, and is estimated to generate $6.8 billion by 2031, manifesting a CAGR of 6.9% from 2022 to 2031. The report provides an extensive analysis of changing market dynamics, major segments, value chain, competitive scenario, and regional landscape. This research offers a valuable guidance to leading players, investors, shareholders, and startups in

Choline Chloride Market Share, Business Size, Growth Factors and Forecast To 203 …

According to the report published by Allied Market Research, the global choline chloride market was estimated at $494.4 million in 2021 and is expected to hit $916.9 million by 2031, registering a CAGR of 6.4% from 2022 to 2031. The report provides a detailed analysis of the top investment pockets, top winning strategies, drivers & opportunities, market size & estimations, competitive landscape, and evolving market trends. The market study is

Palladium Market Future Growth, Trends, Business Size, Industry Demand And Analy …

According to the report published by Allied Market Research, the global palladium market was estimated at $16.3 billion in 2021 and is expected to hit $28.6 billion by 2031, registering a CAGR of 5.8% from 2022 to 2031. The report provides a detailed analysis of the top investment pockets, top winning strategies, drivers & opportunities, market size & estimations, competitive landscape, and evolving market trends. The market study is a

Speexx Excels in G2's Fall 2024 Reports With 48 Badges, Secures 1st place in 10 …

Speexx, the industry leader in digital people development, coaching, and language training, has set a new benchmark by earning an extraordinary 48 badges in G2's Fall 2024 Reports. This accomplishment highlights Speexx's excellence, including 1st place rankings as Leaders across 10 reports, reinforcing its standing as a pioneer in the digital learning sector. G2 categorizes its evaluations into four quadrants: Leader, High Performer, Contender, and Niche. These assessments are based on

USB Data Cables Manufacturing Plant Project Report 2024: Industry Trends and Bus …

IMARC Group's "USB Data Cables Manufacturing Plant Project Report 2024: Industry Trends, Plant Setup, Machinery, Raw Materials, Investment Opportunities, Cost and Revenue" report provides a comprehensive guide on how to successfully set up a USB data cables manufacturing plant. The report offers clarifications on various aspects, such as unit operations, raw material requirements, utility supply, infrastructural needs, machinery models, labour necessities, transportation timelines, packaging costs, etc. In addition to the operational

Assessment Help UK By Best Assessment Writers

In today's competitive academic environment, students face immense pressure to excel in their studies. Juggling multiple assignments, tight deadlines, and exam preparations can be overwhelming. This is where Assessment Help UK services come into play, offering a lifeline to students who seek professional assistance to achieve their academic goals. With the support of the best expert writers, you can now navigate your assessments with confidence and ease. Get up to 50%

TenXer Labs and Renesas Electronics Announce Exclusive Webinar on Edge Computing …

Join Us to Explore How Renesas RZ/V2L and LiveBench Are Shaping the Future of Edge Devices TenXer Labs, in partnership with Renesas Electronics, is excited to announce an exclusive webinar, "Exploring the Next Frontier in Edge Computing with Renesas RZ/V2L,"featuring Axel Kleinitz, System Architect at Renesas Electronics, and Prabrit Bandyopadhyay, Hardware Research and Development Engineer at TenXer Labs. This in-depth session, taking place on October 16, 2024 at 8:30 PM IST -

Top 10 Clinical Research Courses to Kickstart Your Career in India

Clinical research is a crucial field within the healthcare industry, responsible for developing new drugs, therapies, and medical devices. As the demand for skilled clinical researchers grows, several institutions across India offer specialized courses to equip students with the necessary knowledge and skills. Here are the top 10 clinical research courses in India that can help you kickstart your career in this exciting field: Post Graduate Diploma in Clinical Research (PGDCR)

Yarmouk University Students Develop AI-Powered Healthcare Solution 'Awn', Winnin …

Amman, Jordan - 13 October 2024 In a demonstration of innovation and humanitarian commitment, a team of young entrepreneurs, led by Asalah Al-Tamimi, secured first place in the healthcare category at the Ghazathon competition. Organized by Hussein Technical University (HTU), Ghazathon brought together over 130 participants, supported by more than 60 organizers, and evaluated by 15 expert judges. The competition focuses on finding solutions to some of Gaza's most urgent challenges,

Fabricated Metal Market Advanced Technologies and Growth Opportunities to Boost …

According to the report published by Allied Market Research, the global fabricated metal market was estimated at $21.4 billion in 2021 and is expected to hit $34.1 billion by 2031, registering a CAGR of 4.8% from 2022 to 2031. The report provides a detailed analysis of the top investment pockets, top winning strategies, drivers & opportunities, market size & estimations, competitive landscape, and evolving market trends. The market study is

Best MYOB Perdisco Assignment Help in Australia at 50% Off by EssayCorp

Sydney, Australia - [12-Oct-2024] - EssayCorp, a trusted name in academic assistance, is thrilled to announce an incredible offer for students seeking top-notch MYOB Perdisco assignment help. With a generous 50% discount on all MYOB Perdisco assignment services, Australian students can now access expert guidance and support at unbeatable prices. As one of the most challenging accounting software platforms used in academic curricula, MYOB Perdisco assignments often leave students feeling overwhelmed.

Go To Page     879 878 877 876 875 874 873 872 871 870 509 508 507 506 505 504 503 502 501 500