IJCRT Peer-Reviewed (Refereed) Journal as Per New UGC Rules.
ISSN Approved Journal No: 2320-2882 | Impact factor: 7.97 | ESTD Year: 2013
Scholarly open access journals, Peer-reviewed, and Refereed Journals, Impact factor 7.97 (Calculate by google scholar and Semantic Scholar | AI-Powered Research Tool) , Multidisciplinary, Monthly, Indexing in all major database & Metadata, Citation Generator, Digital Object Identifier(CrossRef DOI)
| IJCRT Journal front page | IJCRT Journal Back Page |
Paper Title: A COMPARATIVE ANALYSIS OF TRADITIONAL vs. DIGITAL RECRUITMENT METHODS: EFFECTIVENESS IN MUMBAI'S JOB MARKET
Author Name(s): Ms. Pilai Binu Bhaskaran
Published Paper ID: - IJCRT2508547
Register Paper ID - 290139
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508547 and DOI :
Author Country : Indian Author, India, 400067 , Mumbai, 400067 , | Research Area: Management All Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508547 Published Paper PDF: download.php?file=IJCRT2508547 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508547.pdf
Title: A COMPARATIVE ANALYSIS OF TRADITIONAL VS. DIGITAL RECRUITMENT METHODS: EFFECTIVENESS IN MUMBAI'S JOB MARKET
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Management All
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e814-e823
Year: August 2025
Downloads: 299
E-ISSN Number: 2320-2882
This research paper analyzes the effectiveness of traditional recruitment methods versus digital recruitment techniques in the Mumbai job market. As the world becomes increasingly digital, the recruitment process is also evolving. The study aims to provide insights into the adoption, efficiency, and impact of both traditional and digital methods on the recruitment outcomes in Mumbai, a city known for its dynamic business environment. The paper explores the advantages, limitations, and trends in the adoption of these methods and offers recommendations for organizations seeking to enhance their recruitment strategies.
Licence: creative commons attribution 4.0
Recruitment, Digital, Traditional, Digital Transformation
Paper Title: An Analysis of migration pattern of seasonal migrants- A case study analysis from Purnea district, Bihar
Author Name(s): Dr. Alok Kumar
Published Paper ID: - IJCRT2508546
Register Paper ID - 292769
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508546 and DOI :
Author Country : Indian Author, India, 110067 , New Delhi, 110067 , | Research Area: Arts1 All Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508546 Published Paper PDF: download.php?file=IJCRT2508546 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508546.pdf
Title: AN ANALYSIS OF MIGRATION PATTERN OF SEASONAL MIGRANTS- A CASE STUDY ANALYSIS FROM PURNEA DISTRICT, BIHAR
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Arts1 All
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e807-e813
Year: August 2025
Downloads: 232
E-ISSN Number: 2320-2882
The overwhelming majority of households migrate in search of employment, reflecting the push-driven nature of migration caused by the scarcity of livelihood opportunities in local villages, districts, and the state as a whole. At the same time, the process of migration is heavily dependent on informal networks of assistance, particularly fellow workers, contractors, and kinship ties, which not only facilitate mobility but also provide protection against exploitation and insecurity. The negligible role of formal institutions such as labor unions highlights a significant gap in organized support and protection for migrant workers. Thus, seasonal migration emerges as both a coping strategy for survival and a socially mediated process, where economic compulsions intersect with community-based networks to shape the overall migration experience.
Licence: creative commons attribution 4.0
labour, migration, livelihood, work, Type of assistance
Paper Title: Trash Intelligence: Investigating How AI Exploits Deleted Data and Digital Dustbins in Cybersecurity
Author Name(s): Musunuri Akhil, Umadevi Ramamoorthy
Published Paper ID: - IJCRT2508545
Register Paper ID - 292755
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508545 and DOI :
Author Country : Indian Author, India, 560043 , Banglore, 560043 , | Research Area: Science and Technology Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508545 Published Paper PDF: download.php?file=IJCRT2508545 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508545.pdf
Title: TRASH INTELLIGENCE: INVESTIGATING HOW AI EXPLOITS DELETED DATA AND DIGITAL DUSTBINS IN CYBERSECURITY
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Science and Technology
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e795-e806
Year: August 2025
Downloads: 226
E-ISSN Number: 2320-2882
The advent of artificial intelligence (AI) and data-driven technologies brought new depths to cybersecurity where interpolated, or dumped data can equally serve as a valuable asset. The idea is named Trash Intelligence based on the view that AI tools utilize trash data to reveal sensitive information left behind by digital users; e.g., deleted files, caches, and logs. Although organizations believe that the data deleted is no longer readable, research indicates that digital waste can easily be retrieved, and therefore it exposes them to great threats of hacking and exploitation [4], [13]. Emerging digital and circular economy technologies, including blockchain and Internet of Things have been deployed successfully to physical and e-waste management [1], [8], yet there is a dearth of studies on the cybersecurity impact of digital dustbins. Machine learning methods have already been shown to be useful in waste forecasting, optimization and resource recovery [10], [5] implying that malicious actors may similarly use machine learning to extract sensitive information. This paper will discuss the possibility of AI tapping on digital residues and how it can be possibly attacked and the countermeasures. This gap is connected to the linkage of concepts in the three fields (waste management, circular economy, and cybersecurity). Therefore, the study identifies an actual research gap to secure the data disposal activities in the AI-driven setting.
Licence: creative commons attribution 4.0
AI, Cybersecurity, Deleted Data, Trash Intelligence, Digital Dustbins.
Paper Title: Important Impact of PTEN tumor suppressor Gene has using in CRISPR-CAS9 Gene Editing Technology of ChopChop Version 3 Method with IDT Technology Analysis that In-Silico approach detects in the Endometrial Cancer.
Author Name(s): Atreyee Majumder
Published Paper ID: - IJCRT2508544
Register Paper ID - 292654
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508544 and DOI : https://doi.org/10.56975/ijcrt.v13i8.292654
Author Country : Indian Author, India, 700056 , KOLKATA, 700056 , | Research Area: Life Sciences All Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508544 Published Paper PDF: download.php?file=IJCRT2508544 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508544.pdf
Title: IMPORTANT IMPACT OF PTEN TUMOR SUPPRESSOR GENE HAS USING IN CRISPR-CAS9 GENE EDITING TECHNOLOGY OF CHOPCHOP VERSION 3 METHOD WITH IDT TECHNOLOGY ANALYSIS THAT IN-SILICO APPROACH DETECTS IN THE ENDOMETRIAL CANCER.
DOI (Digital Object Identifier) : https://doi.org/10.56975/ijcrt.v13i8.292654
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Life Sciences All
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e779-e794
Year: August 2025
Downloads: 297
E-ISSN Number: 2320-2882
The CRISPR-associated protein 9 (Cas9) system is primarily a defensive mechanism utilized by bacteria to protect themselves from phage invasion. Endometrial cancer, a particular type of gynecological cancer, poses a serious hazard to people all over the world because to the high occurrence of the PTEN gene mutation. It has, however, been purposely exploited as a powerful foundation for RNA-guided DNA targeting, making genome editing, transcriptional disruption, epigenetic alteration, and genome imaging more manageable. When using a fusion protein of nuclease-deficient Cas9 and effector domain, this technology allows for precise manipulation of any genomic sequence specified by a short stretch of guide RNA, allowing for the elucidation of gene function involved in disease development and progression, correction of disease-causing mutations, active therapeutic approaches include rectifying disease-causing mutations, inactivating oncogenes, and activating deactivated cancer suppressor genes. The CRISPR-Cas9 in-silico operation was performed using the ChopChop technique version 3. CHOPCHOP is suitable for a variety of CRISPR applications, including gene knock-out, sequence knock-in, and RNA knock-down. Using CHOPCHOP's visualization, gRNAs may be chosen through knowledge and experimentation. CHOPCHOP v3 broadens the variety of DNA targeting methods available. Among these are (i) mechanisms for nanopore enrichment. Targeted sequencing is the process of obtaining high-quality sequencing reads in a specified area of interest. CHOPCHOP v3 is limited to sgRNA searches inside each isoform, which necessitates knocking off the PTEN gene with IDT Technology. The gRNA had to be selected for usage since "Molecular Scissor" is a procedure that uses primer design to assist the UCSC Genome Browser in measuring the variation of the intron and exon variation in the targeted gene by target sequences. Furthermore, this programmable endonuclease technique allows scientists to investigate the roles of multiple gene sequences concurrently by targeting multiple genomic loci in a single experiment, greatly accelerating our understanding of pathological processes involving large sets of genes or mutations, such as tumor development. CRISPR-based genome-wide screens using single-guide RNA (Sg RNA) libraries can be used to identify drug-target or disease-resistance genes, such as novel tumor suppressors or oncogenes, as well as to rapidly assess therapeutic targets. Drug-target or disease-resistance genes, such as novel tumor suppressors or oncogenes, can also be exploited to quickly identify therapeutic targets. The CRISPER-CAS9 gene editing technique, as a novel therapeutic impact method, emphasizes the need of understanding the mechanism of endometrial cancer therapy. CRISPRs, or clustered regularly interspaced short palindromic repeats, were developed as a gene editing tool. CRISPR-associated (CAS) nucleases, which are guided by single guide RNAs (sgRNAs), can be used to fix mutations in disease-associated genes and delete specific genes. When it comes to creating genetic alterations or mutations, the CRISPR/Cas9 system outperforms earlier methods.
Licence: creative commons attribution 4.0
CRISPER-CAS9, Endometrial cancer, PTEN gene, ChopChop method, IDT Technology, guide RNA
Paper Title: Development Of Kit For Urea Detection In Milk And Experimental Study On Spread Of Adulteration
Author Name(s): Miss. Harshala Sharad Gite, Miss. Gauri Sanjay Matale, Mrs. Roma M Sharma
Published Paper ID: - IJCRT2508543
Register Paper ID - 291760
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508543 and DOI :
Author Country : Indian Author, India, - , -, - , | Research Area: Science and Technology Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508543 Published Paper PDF: download.php?file=IJCRT2508543 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508543.pdf
Title: DEVELOPMENT OF KIT FOR UREA DETECTION IN MILK AND EXPERIMENTAL STUDY ON SPREAD OF ADULTERATION
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Science and Technology
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e754-e778
Year: August 2025
Downloads: 263
E-ISSN Number: 2320-2882
Adulteration of food products, especially milk, poses a significant threat to public health and safety. The use of urea as an adulterant in milk is a common practice, leading to serious health risks. To address this growing concern, we have developed IKshan, a revolutionary urea detection kit made from soybean flour, offering a simple, eco-friendly, and cost-effective solution for identifying urea adulteration in milk. The name ??shan, meaning "care" in Hindi, reflects our commitment as pharmacists to prioritize the well-being of society. This study investigates the spread of adulteration in commonly used food items such as turmeric powder, milk, ghee, and edible oils. Various adulteration testing methods were employed across different samples, and the results were analyzed graphically to distinguish between adulterated and unadulterated samples. The graphical representation highlights the extent of adulteration and its widespread nature in everyday consumables. Through the development of strip, we aim to provide a reliable tool for consumers to easily detect urea in milk, ensuring better food safety practices. The findings of this study underscore the necessity for innovative solutions to combat food adulteration, ensuring the safety and integrity of products consumed daily.
Licence: creative commons attribution 4.0
Adulteration, Unadulterated,Consumers, Urea
Paper Title: Sustainable Retrofitting Of Fire Damaged Cement And Geopolymer Concrete Slabs Using Hybrid Basalt And Carbon Fiber Reinforced Polymers.
Author Name(s): Chethan Kumar S, Dr. Ashwini L.K.
Published Paper ID: - IJCRT2508542
Register Paper ID - 292766
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508542 and DOI :
Author Country : Indian Author, India, 562159 , Ramanagara, 562159 , | Research Area: Science and Technology Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508542 Published Paper PDF: download.php?file=IJCRT2508542 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508542.pdf
Title: SUSTAINABLE RETROFITTING OF FIRE DAMAGED CEMENT AND GEOPOLYMER CONCRETE SLABS USING HYBRID BASALT AND CARBON FIBER REINFORCED POLYMERS.
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Science and Technology
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e736-e753
Year: August 2025
Downloads: 202
E-ISSN Number: 2320-2882
Licence: creative commons attribution 4.0
Geopolymer concrete, Fire damage, Retrofitting, Fiber Reinforced Polymer (FRP), Hybrid CFRP-BFRP, Load-bearing capacity, Sustainable construction.
Paper Title: The Role of Employer Branding in Recruitment Success: A Study of Companies in Mumbai
Author Name(s): Ms. Pilai Binu Bhaskaran
Published Paper ID: - IJCRT2508541
Register Paper ID - 292273
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508541 and DOI :
Author Country : Indian Author, India, 400067 , Mumbai, 400067 , | Research Area: Management All Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508541 Published Paper PDF: download.php?file=IJCRT2508541 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508541.pdf
Title: THE ROLE OF EMPLOYER BRANDING IN RECRUITMENT SUCCESS: A STUDY OF COMPANIES IN MUMBAI
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Management All
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e729-e735
Year: August 2025
Downloads: 231
E-ISSN Number: 2320-2882
This study explores the role of employer branding in recruitment success among companies in Mumbai, one of India's largest and most competitive job markets. Employer branding refers to the reputation and image of a company as an employer, and its influence on attracting and retaining top talent. With the growing emphasis on creating a distinct organizational identity, the research examines how employer branding strategies such as online presence, employee value propositions (EVP), corporate social responsibility (CSR), and employee testimonials affect recruitment outcomes. The study uses a quantitative approach, gathering data from 100 companies in diverse sectors, including IT, banking, healthcare, and retail. Findings reveal that a strong employer brand significantly improves recruitment success by reducing time-to-hire, enhancing the quality of applicants, and lowering recruitment costs. Moreover, employer branding influences candidate decision-making, with candidates more likely to apply to organizations with a strong, positive brand image. The study also finds that employer branding plays a crucial role in employee retention and engagement, as companies with a strong brand identity experience higher retention rates. These results emphasize the strategic importance of employer branding in Mumbai's competitive labor market, suggesting that companies investing in their brand image can attract top talent and achieve greater recruitment success.
Licence: creative commons attribution 4.0
Employer Branding, Recruitment, Mumbai, Talent.
Paper Title: Complete Justice in Supplier-Customer relationships: A Legal and Ethical Perspective
Author Name(s): Dr. Suresh Kumar Sharma
Published Paper ID: - IJCRT2508540
Register Paper ID - 292396
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508540 and DOI :
Author Country : Indian Author, India, 110095 , Delhi, 110095 , | Research Area: Management All Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508540 Published Paper PDF: download.php?file=IJCRT2508540 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508540.pdf
Title: COMPLETE JUSTICE IN SUPPLIER-CUSTOMER RELATIONSHIPS: A LEGAL AND ETHICAL PERSPECTIVE
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Management All
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e724-e728
Year: August 2025
Downloads: 214
E-ISSN Number: 2320-2882
In the evolving landscape of global commerce, supply chains have transformed from static transactional models to dynamic, interconnected systems. The concept of complete justice, drawn from constitutional jurisprudence, has profound implications in these environments--particularly in supplier-customer relationships within agile and resilient ("Agilent") supply chains. This article explores how the principle of complete justice can serve as a foundation for fair, responsive, and sustainable commercial partnerships by complementing legal obligations with ethical considerations.
Licence: creative commons attribution 4.0
Complete Justice, Supply Chain, Transparency, Equality, Supplier Customer Relationship
Paper Title: Ethical AI In Marketing: Balancing Innovation And Responsibility
Author Name(s): Dr. Pooja Sharma
Published Paper ID: - IJCRT2508539
Register Paper ID - 292405
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508539 and DOI :
Author Country : Indian Author, India, 462016 , Bhopal, 462016 , | Research Area: Social Science All Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508539 Published Paper PDF: download.php?file=IJCRT2508539 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508539.pdf
Title: ETHICAL AI IN MARKETING: BALANCING INNOVATION AND RESPONSIBILITY
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Social Science All
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e716-e723
Year: August 2025
Downloads: 226
E-ISSN Number: 2320-2882
Artificial intelligence is changing the face of modern marketing, offering brands powerful tools to understand, predict, and influence consumer behavior with remarkable precision. From automated content generation to real-time personalization and predictive targeting, AI is helping marketers reach audiences in more intelligent and effective ways. However, with this growing technological capability comes a pressing ethical responsibility. As marketers gain deeper access to personal data and behavioral insights, the line between helpful personalization and invasive manipulation is becoming increasingly blurred. This conceptual paper explores the ethical dimensions of using AI in marketing. It begins by examining the key capabilities of AI that are being adopted in customer engagement--such as behavioral tracking, recommendation algorithms, emotion detection, and personalized pricing--and discusses how these tools, when not implemented carefully, may compromise consumer autonomy, privacy, and trust. The paper highlights real-world concerns such as algorithmic bias, lack of transparency, deepfake content, and the psychological impact of hyper-targeted messaging.To address these issues, the paper proposes a values-driven ethical framework that integrates innovation with accountability. It argues that ethical AI in marketing should go beyond regulatory compliance and embrace principles such as transparency, fairness, consent, and explainability. The framework also emphasizes the importance of cross-functional collaboration between marketers, data scientists, legal experts, and ethicists in designing AI systems that respect the human side of the consumer.By grounding the discussion in both current practice and forward-thinking strategy, this study aims to encourage organizations to treat ethical AI not as a constraint, but as a competitive advantage. Responsible AI use can strengthen brand reputation, foster long-term loyalty, and future-proof marketing efforts in an increasingly data-conscious world. In doing so, it invites marketers to reflect on a deeper question: not just what AI can do for marketing, but what marketing should stand for in the age of AI.
Licence: creative commons attribution 4.0
Ethical AI, Consumer Trust, Responsible Marketing, Data Privacy, Algorithmic Bias
Paper Title: Advanced Pedagogy in Teaching School Physics: Strategies, Challenges, and Opportunities
Author Name(s): Dr. Prabhuswamy M.
Published Paper ID: - IJCRT2508538
Register Paper ID - 292764
Publisher Journal Name: IJPUBLICATION, IJCRT
DOI Member ID: 10.6084/m9.doi.one.IJCRT2508538 and DOI :
Author Country : Indian Author, India, 573134 , MYSORE, 573134 , | Research Area: Others area Published Paper URL: http://ijcrt.org/viewfull.php?&p_id=IJCRT2508538 Published Paper PDF: download.php?file=IJCRT2508538 Published Paper PDF: http://www.ijcrt.org/papers/IJCRT2508538.pdf
Title: ADVANCED PEDAGOGY IN TEACHING SCHOOL PHYSICS: STRATEGIES, CHALLENGES, AND OPPORTUNITIES
DOI (Digital Object Identifier) :
Pubished in Volume: 13 | Issue: 8 | Year: August 2025
Publisher Name : IJCRT | www.ijcrt.org | ISSN : 2320-2882
Subject Area: Others area
Author type: Indian Author
Pubished in Volume: 13
Issue: 8
Pages: e711-e715
Year: August 2025
Downloads: 238
E-ISSN Number: 2320-2882
Physics, as a central discipline in secondary education, has long been regarded as abstract, conceptually demanding, and often disengaging for learners. Traditional lecture-based pedagogies, while effective in transmitting factual knowledge, have shown limitations in fostering deep conceptual understanding, scientific reasoning, and real-world problem-solving. This research article explores advanced pedagogical approaches in teaching Physics at the school level, including inquiry based learning, problem-based learning, conceptual change strategies, peer instruction, and technology integration. The paper reviews empirical evidence on the effectiveness of these methods, highlights challenges in implementation, and offers recommendations for sustainable improvement. The study concludes that while advanced pedagogy enhances students' learning outcomes and motivation, teacher training, curriculum reform, and resource provision are critical for large-scale success.
Licence: creative commons attribution 4.0
Physics education, pedagogy, inquiry-based learning, conceptual change, technology integration, peer instruction

