ABSTRACT. Cryptography is required to secure the data networks communication. This study implements Twofish cryptographic algorithm using library Chilkat Encryption ActiveX Ms. Visual Basic. Twofish operate on a block of plaintext consisting of 128 bits. There are 3 steps in Twofish algorithm, the first step is divide input bit into 4 parts, the second step was performed XOR operation between bit input with a key, and the third step processing the input bits in 16 times Feistel network. To facilitate the implementation of the coding in Ms. Visual Basic we use Chilkat Encryption ActiveX. This research using agile methods with phases: plan, design, code, test, and release. Twofish algorithm implementation using Ms. Visual Basic and library Chilkat Encryption ActiveX can be used to secure the data. The data succeed to be encrypted or decrypted and irreversible. The program can be implemented to maintain the confidentiality of the data when transmitted over the Internet. The speed encryption process need 3 times longer than the decryption. Average of time in encryption process need 0,365 second, while decryption process need 0,0936 second.
Keywords: Data security, Twofish, Chilkat Encryption ActiveX
Encrypted Query Processing Based Log Management in the Cloud for Improved Pot...Editor IJCATR
To address privacy concerns current implementation allows access to log records that are indirectly identified by upload-tag
values. We plan to propose a practical homomorphic encryption schemes that will allow encryption of log records in such a way that
the logging cloud can execute some queries on the encrypted logs without breaching confidentiality or privacy. Anonymous network
implement the anonymity of users and provide privacy. In this paper implement the anonymous of user by implementing anonymous
tag generation. CryptDB is a system that provides practical and provable confidentiality in the face of these attacks for applications
backed by databases. It works by executing queries over encrypted data using a collection of efficient aware encryption schemes.. It
greatly reduces the communication overhead between a log monitor and the logging cloud needed to answer queries on logs.
Semantic annotation, which is considered one of the semantic web applicative aspects, has been adopted by researchers from different communities as a paramount solution that improves searching and retrieval of information by promoting the richness of the content. However, researchers are facing challenges concerning both the quality and the relevance of the semantic annotations attached to the annotated document against its content as well as its semantics, without ignoring those regarding automation process which is supposed to ensure an optimal system for information indexing and retrieval. In this article, we will introduce the semantic annotation concept by presenting a state of the art including definitions, features and a classification of annotation systems. Systems and proposed approaches in the field will be cited, as well as a study of some existing annotation tools. This study will also pinpoint various problems and limitations related to the annotation in order to offer solutions for our future work.
Systematic Review Automation in Cyber SecurityYogeshIJTSRD
Many aspects of cyber security are carried by automation systems and service applications. The initial steps of cyber chain mainly focus on different automation tools with almost same task objective. Automation operations are carried only after detail study on particular task pre engagement phase , the tool is going to perform, measurement of dataset handling of tool produced output. The algorithm is going to make use of after comparing the existing tools efficiency, the throughput time, output format for reusable input and mainly the resource’s consumption. In this paper we are going to study the existing methodology in application and system pen testing, automation tool’s efficiency over growing technology and their behaviour study on unintended platform assignment. Nitin | Dr. Lakshmi J. V. N "Systematic Review: Automation in Cyber Security" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, URL: https://www.ijtsrd.compapers/ijtsrd41315.pdf Paper URL: https://www.ijtsrd.comcomputer-science/computer-security/41315/systematic-review-automation-in-cyber-security/nitin
Data Encryption and Decryption Algorithm Using Hamming Code and Arithmetic Op...IJERA Editor
This paper explains the implementation of data encryption and decryption algorithm using hamming code and arithmetic operations with the help of Verilog HDL. As the days are passing the old algorithms are not remained so strong cryptanalyst are familiar with them. Hamming code is one of forward error correcting code which has got many applications. In this paper hamming code algorithm was discussed and the implementation of it was done with arithmetic operations. For high security some arithmetic operations are added with hamming code process. A 3-bit data will be encrypted as 14-bit and using decryption process again we will receives 3-bit original data. The implemented design was tested on Spartan3A FPGA kit.
Encrypted Query Processing Based Log Management in the Cloud for Improved Pot...Editor IJCATR
To address privacy concerns current implementation allows access to log records that are indirectly identified by upload-tag
values. We plan to propose a practical homomorphic encryption schemes that will allow encryption of log records in such a way that
the logging cloud can execute some queries on the encrypted logs without breaching confidentiality or privacy. Anonymous network
implement the anonymity of users and provide privacy. In this paper implement the anonymous of user by implementing anonymous
tag generation. CryptDB is a system that provides practical and provable confidentiality in the face of these attacks for applications
backed by databases. It works by executing queries over encrypted data using a collection of efficient aware encryption schemes.. It
greatly reduces the communication overhead between a log monitor and the logging cloud needed to answer queries on logs.
Semantic annotation, which is considered one of the semantic web applicative aspects, has been adopted by researchers from different communities as a paramount solution that improves searching and retrieval of information by promoting the richness of the content. However, researchers are facing challenges concerning both the quality and the relevance of the semantic annotations attached to the annotated document against its content as well as its semantics, without ignoring those regarding automation process which is supposed to ensure an optimal system for information indexing and retrieval. In this article, we will introduce the semantic annotation concept by presenting a state of the art including definitions, features and a classification of annotation systems. Systems and proposed approaches in the field will be cited, as well as a study of some existing annotation tools. This study will also pinpoint various problems and limitations related to the annotation in order to offer solutions for our future work.
Systematic Review Automation in Cyber SecurityYogeshIJTSRD
Many aspects of cyber security are carried by automation systems and service applications. The initial steps of cyber chain mainly focus on different automation tools with almost same task objective. Automation operations are carried only after detail study on particular task pre engagement phase , the tool is going to perform, measurement of dataset handling of tool produced output. The algorithm is going to make use of after comparing the existing tools efficiency, the throughput time, output format for reusable input and mainly the resource’s consumption. In this paper we are going to study the existing methodology in application and system pen testing, automation tool’s efficiency over growing technology and their behaviour study on unintended platform assignment. Nitin | Dr. Lakshmi J. V. N "Systematic Review: Automation in Cyber Security" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, URL: https://www.ijtsrd.compapers/ijtsrd41315.pdf Paper URL: https://www.ijtsrd.comcomputer-science/computer-security/41315/systematic-review-automation-in-cyber-security/nitin
Data Encryption and Decryption Algorithm Using Hamming Code and Arithmetic Op...IJERA Editor
This paper explains the implementation of data encryption and decryption algorithm using hamming code and arithmetic operations with the help of Verilog HDL. As the days are passing the old algorithms are not remained so strong cryptanalyst are familiar with them. Hamming code is one of forward error correcting code which has got many applications. In this paper hamming code algorithm was discussed and the implementation of it was done with arithmetic operations. For high security some arithmetic operations are added with hamming code process. A 3-bit data will be encrypted as 14-bit and using decryption process again we will receives 3-bit original data. The implemented design was tested on Spartan3A FPGA kit.
SECURE SENSITIVE DATA SHARING ON BIG DATA PLATFORMAM Publications
Big data concern extremely large volume and complex data both structured and unstructured to reveal patterns and trends .The organisation procure large data storage, data delivery on semi-trusted big data sharing platform. An enterprise can obtain huge amount of sensitive data by storing, analysing, processing these data. In digital world, keeping sensitive data secure from theft and vulnerability is very difficult .This abstract proposes a framework for secure sensitive data sharing on a big data platform using effective encryption algorithm. We present an identity based conditional proxy encryption based on heterogeneous cipher text transformation .It protects security of user’s sensitive data on big data platform.
A NEW COMMUNICATION PLATFORM FOR DATA TRANSMISSION IN VIRTUAL PRIVATE NETWORKijmnct
Nowadays security is an evident matter in designing networks and much research has been done in this
field. The main purpose of the research is to provide an appropriate instruction for data transmission in a
reliable platform. One of the instructions of transferring information is to use public networks like internet.
The main purpose of the present paper is to introduce that enables the users to enter to a new security level.
In this paper, VPN as one of the different instructions for establishing the security proposed to be
examined. In this type, tunneling method of internet protocol security (IPsec) is used. Furthermore, the
advanced method of scanning fingerprint is applied to establish authentication and Diffie-Hellman
algorithm for coding and decoding data, of course with conversion in this algorithm.
Residential access control system using QR code and the IoT IJECEIAES
This paper presents a residential access control system (RACs) using QR codes and the internet of things (IoT) to improve security and help house owners. The contribution of this paper is that it proposes two mechanisms in the authentication phase and the verification phase, respectively, to enhance residential access control. The main idea is using cryptography between smartphones and access control devices. The cryptography compares secret codes on the key server via the internet. The RACs can notify a user of the residential access status through the LINE application and show the statuses of devices through the network platform for the internet of everything (NETPIE) in real-time. We compare this system’s performance with that of the current access control methods in terms of security and access speed. The results show that this system has more security and has an access speed of 5.63 seconds. Moreover, this system is safer and more flexible than the comparative methods and suitable for contactless authentication.
Dual method cryptography image by two force secure and steganography secret m...TELKOMNIKA JOURNAL
With the go on the evolution of both computer and internet technology, videos, sounds, and scripts are used more and more often. It can be used in sundry techniques in ciphering and data concealing. The objective of this paper is leading to the suggestion of a new method of the combination between encryption and concealment of information so as to make it difficult to identify the transmitted datavia networks. This study has used two force secure (2FS) to encrypt the images, in other words, the SF is frequent twice on the image, to obtain powerful encryption then the concealing of the secret message is done inside the cryptography of the image has been performed using a secret key (cosine curve), and this stego-encryption image has been transformed forthe Internet of things storage in the database in IoT (data flow), when the user needs any information can be access inviaof internet of things (IoTs). The outcome of the proposed system is obtained tobe evaluated through different measures, such aspeak signal noise ratio (PSNR), mean square error (MSE), entropy,correlation coefficient, and histogram. The proposed system is good, efficient, fast, has high security, robustness, and transparency.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Security System for Data Using Steganography and Cryptography (SSDSC) csandit
Security System for Data using Steganography and Cryptography (SSDSC) is a set of hardware
and software components that will be used to send secured documents through the internet.
Some of the software will be loaded into a microcontrollers in order to increase the complexity
and security. The data will be encrypted using the Advanced Encryption Standard (AES)
algorithm with a key from the Raspberry PI microcontroller and hide it inside an image using
Least Significant Bit (LSB) algorithm, the data will be invisible. The image will be transmitted
and received through the internet, the receivers will extract the hidden data from the image and
decrypt it to have the original data with the image.
Complicating the steps of hiding and encryption will reduce the possiblity of intrusin of secured
documents, and the process will be trasparent to the user to increase security without affecting
the normal steps and the behavior in secured documents exchange.
Keystroke with Data Leakage Detection for Secure Email AuthenticationYogeshIJTSRD
The user authentication is the important factor which allows the user to use a particular software. The user authentication is also performed in various kinds of social media such as Gmail, Facebook, etc. The traditional password system is used for user authentication. But this technique has a lot of demerits in it. Some hackers also cracks the password and perform some unwanted actions in the user authentication. In order to remove the difficulties in this traditional password technique and to provide additional security in user authentication, the keystroke with data leakage detection for secure email authentication is designed. This system uses Keystroke Dynamics. This system consists of five different types of modules such as Email Framework Construction, User Enrolment, Keystroke Authentication, Data Sharing and Data Leakage Detection. This system gets the details of the user such as name and email. Then it allows to enter the password. This password is stored along with the keystroke dynamics data such as the typing speed of the password and the threshold value. Both the Keystroke dynamics data and the original password are stored in the database. When the user wants to log into the system, the user has to give the password according to the keystroke dynamics data. Then only, the user can log into the system. Hence this system can also be used in Cyber security and provide security and privacy for the user data. Mrs. V. Hemalatha | V. Boominathan | K. Harithas | P. Raj Kumar | S. Vijaya Bharathi "Keystroke with Data Leakage Detection for Secure Email Authentication" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, URL: https://www.ijtsrd.com/papers/ijtsrd39969.pdf Paper URL: https://www.ijtsrd.com/computer-science/computer-security/39969/keystroke-with-data-leakage-detection-for-secure-email-authentication/mrs-v-hemalatha
ARTIFICIAL NEURAL CRYPTOGRAPHY DATAGRAM HIDING TECHNIQUES FOR COMPUTER SECURI...IAEME Publication
Cryptography is the scientific study of mathematical and algorithmic techniques relating to information security. Cryptographic techniques will help to protect information in cases where an attacker can have physical access to the bits representing the information, ex. When the information has to be sent over a communication channel that can be eaves dropped on by an attacker. Cryptographic primitives are the basic building blocks for constructing cryptographic solutions to information protection problems. A cryptographic primitive consists of one or more algorithms that achieve a number of protection goals. There is no well-agreed upon complete list of cryptographic primitives, nor are all cryptographic primitives independent, it is often possible to realize one primitive using a combination of other primitives.
Hybrid Cryptography security in public cloud using TwoFish and ECC algorithmIJECEIAES
Cloud computing is a structure for rendering service to the user for free or paid basis through internet facility where we can access to a bulk of shared resources which results in saving managing cost and time for large companies, The data which are stored in the data center may incur various security, damage and threat issues which may result in data leakage, insecure interface and inside attacks. This paper will demonstrate the implementation of hybrid cryptography security in public cloud by a combination of Elliptical Curve Cryptography and Twofish algorithm, which provides an innovative solution to enhance the security features of the cloud so that we can improve the service thus results in increasing the trust over the technology.
Today information security is a challenging factor that touches a lot of areas, including computers and communications. Message communication is kept secure through cryptography so that an eavesdropper is not able to decipher a transmitted message. One of the oldest and simplest known algorithms for cryptography is the Caesar cipher algorithm. In this paper, three programs based on Java, C++, and Python languages have been developed to implement the Caesar cipher algorithm to aid information security students and help them understand this fundamental algorithm. A code flow chart is used for each program to describe the code’s flow. It also reveals the sequence of steps for the code’s main methods, as well as the relationships between them. Furthermore, various technical descriptions are presented in detail for each of the methods used in both the encoding and the decoding of the messages.
SECURE SENSITIVE DATA SHARING ON BIG DATA PLATFORMAM Publications
Big data concern extremely large volume and complex data both structured and unstructured to reveal patterns and trends .The organisation procure large data storage, data delivery on semi-trusted big data sharing platform. An enterprise can obtain huge amount of sensitive data by storing, analysing, processing these data. In digital world, keeping sensitive data secure from theft and vulnerability is very difficult .This abstract proposes a framework for secure sensitive data sharing on a big data platform using effective encryption algorithm. We present an identity based conditional proxy encryption based on heterogeneous cipher text transformation .It protects security of user’s sensitive data on big data platform.
A NEW COMMUNICATION PLATFORM FOR DATA TRANSMISSION IN VIRTUAL PRIVATE NETWORKijmnct
Nowadays security is an evident matter in designing networks and much research has been done in this
field. The main purpose of the research is to provide an appropriate instruction for data transmission in a
reliable platform. One of the instructions of transferring information is to use public networks like internet.
The main purpose of the present paper is to introduce that enables the users to enter to a new security level.
In this paper, VPN as one of the different instructions for establishing the security proposed to be
examined. In this type, tunneling method of internet protocol security (IPsec) is used. Furthermore, the
advanced method of scanning fingerprint is applied to establish authentication and Diffie-Hellman
algorithm for coding and decoding data, of course with conversion in this algorithm.
Residential access control system using QR code and the IoT IJECEIAES
This paper presents a residential access control system (RACs) using QR codes and the internet of things (IoT) to improve security and help house owners. The contribution of this paper is that it proposes two mechanisms in the authentication phase and the verification phase, respectively, to enhance residential access control. The main idea is using cryptography between smartphones and access control devices. The cryptography compares secret codes on the key server via the internet. The RACs can notify a user of the residential access status through the LINE application and show the statuses of devices through the network platform for the internet of everything (NETPIE) in real-time. We compare this system’s performance with that of the current access control methods in terms of security and access speed. The results show that this system has more security and has an access speed of 5.63 seconds. Moreover, this system is safer and more flexible than the comparative methods and suitable for contactless authentication.
Dual method cryptography image by two force secure and steganography secret m...TELKOMNIKA JOURNAL
With the go on the evolution of both computer and internet technology, videos, sounds, and scripts are used more and more often. It can be used in sundry techniques in ciphering and data concealing. The objective of this paper is leading to the suggestion of a new method of the combination between encryption and concealment of information so as to make it difficult to identify the transmitted datavia networks. This study has used two force secure (2FS) to encrypt the images, in other words, the SF is frequent twice on the image, to obtain powerful encryption then the concealing of the secret message is done inside the cryptography of the image has been performed using a secret key (cosine curve), and this stego-encryption image has been transformed forthe Internet of things storage in the database in IoT (data flow), when the user needs any information can be access inviaof internet of things (IoTs). The outcome of the proposed system is obtained tobe evaluated through different measures, such aspeak signal noise ratio (PSNR), mean square error (MSE), entropy,correlation coefficient, and histogram. The proposed system is good, efficient, fast, has high security, robustness, and transparency.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Security System for Data Using Steganography and Cryptography (SSDSC) csandit
Security System for Data using Steganography and Cryptography (SSDSC) is a set of hardware
and software components that will be used to send secured documents through the internet.
Some of the software will be loaded into a microcontrollers in order to increase the complexity
and security. The data will be encrypted using the Advanced Encryption Standard (AES)
algorithm with a key from the Raspberry PI microcontroller and hide it inside an image using
Least Significant Bit (LSB) algorithm, the data will be invisible. The image will be transmitted
and received through the internet, the receivers will extract the hidden data from the image and
decrypt it to have the original data with the image.
Complicating the steps of hiding and encryption will reduce the possiblity of intrusin of secured
documents, and the process will be trasparent to the user to increase security without affecting
the normal steps and the behavior in secured documents exchange.
Keystroke with Data Leakage Detection for Secure Email AuthenticationYogeshIJTSRD
The user authentication is the important factor which allows the user to use a particular software. The user authentication is also performed in various kinds of social media such as Gmail, Facebook, etc. The traditional password system is used for user authentication. But this technique has a lot of demerits in it. Some hackers also cracks the password and perform some unwanted actions in the user authentication. In order to remove the difficulties in this traditional password technique and to provide additional security in user authentication, the keystroke with data leakage detection for secure email authentication is designed. This system uses Keystroke Dynamics. This system consists of five different types of modules such as Email Framework Construction, User Enrolment, Keystroke Authentication, Data Sharing and Data Leakage Detection. This system gets the details of the user such as name and email. Then it allows to enter the password. This password is stored along with the keystroke dynamics data such as the typing speed of the password and the threshold value. Both the Keystroke dynamics data and the original password are stored in the database. When the user wants to log into the system, the user has to give the password according to the keystroke dynamics data. Then only, the user can log into the system. Hence this system can also be used in Cyber security and provide security and privacy for the user data. Mrs. V. Hemalatha | V. Boominathan | K. Harithas | P. Raj Kumar | S. Vijaya Bharathi "Keystroke with Data Leakage Detection for Secure Email Authentication" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, URL: https://www.ijtsrd.com/papers/ijtsrd39969.pdf Paper URL: https://www.ijtsrd.com/computer-science/computer-security/39969/keystroke-with-data-leakage-detection-for-secure-email-authentication/mrs-v-hemalatha
ARTIFICIAL NEURAL CRYPTOGRAPHY DATAGRAM HIDING TECHNIQUES FOR COMPUTER SECURI...IAEME Publication
Cryptography is the scientific study of mathematical and algorithmic techniques relating to information security. Cryptographic techniques will help to protect information in cases where an attacker can have physical access to the bits representing the information, ex. When the information has to be sent over a communication channel that can be eaves dropped on by an attacker. Cryptographic primitives are the basic building blocks for constructing cryptographic solutions to information protection problems. A cryptographic primitive consists of one or more algorithms that achieve a number of protection goals. There is no well-agreed upon complete list of cryptographic primitives, nor are all cryptographic primitives independent, it is often possible to realize one primitive using a combination of other primitives.
Hybrid Cryptography security in public cloud using TwoFish and ECC algorithmIJECEIAES
Cloud computing is a structure for rendering service to the user for free or paid basis through internet facility where we can access to a bulk of shared resources which results in saving managing cost and time for large companies, The data which are stored in the data center may incur various security, damage and threat issues which may result in data leakage, insecure interface and inside attacks. This paper will demonstrate the implementation of hybrid cryptography security in public cloud by a combination of Elliptical Curve Cryptography and Twofish algorithm, which provides an innovative solution to enhance the security features of the cloud so that we can improve the service thus results in increasing the trust over the technology.
Today information security is a challenging factor that touches a lot of areas, including computers and communications. Message communication is kept secure through cryptography so that an eavesdropper is not able to decipher a transmitted message. One of the oldest and simplest known algorithms for cryptography is the Caesar cipher algorithm. In this paper, three programs based on Java, C++, and Python languages have been developed to implement the Caesar cipher algorithm to aid information security students and help them understand this fundamental algorithm. A code flow chart is used for each program to describe the code’s flow. It also reveals the sequence of steps for the code’s main methods, as well as the relationships between them. Furthermore, various technical descriptions are presented in detail for each of the methods used in both the encoding and the decoding of the messages.
A Review on Key-Aggregate Cryptosystem for Climbable Knowledge Sharing in Clo...Editor IJCATR
The Data sharing is an important functionality in cloud storage. In this article, we show how to securely, efficiently, and
flexibly share data with others in cloud storage. We describe new public-key cryptosystems which produce constant-size ciphertexts
such that efficient delegation of decryption rights for any set of ciphertexts are possible. The novelty is that one can aggregate any set
of secret keys and make them as compact as a single key, but encompassing the power of all the keys being aggregated. In other
words, the secret key holder can release a constant-size aggregate key for flexible choices of ciphertext set in cloud storage, but the
other encrypted files outside the set remain confidential. This compact aggregate key can be conveniently sent to others or be stored in
a smart card with very limited secure storage. We provide formal security analysis of our schemes in the standard model. We also
describe other application of our schemes. In particular, our schemes give the first public-key patient controlled encryption for flexible
hierarchy, which was yet to be known.
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.