Impact of digital library services on student’s learning in University of Sargodha”

Abstract:

• The terminology “Learning and Digital library services” has two explicit components.
• The researchers must design at the time of research, theory, and practice from these fields concerned with both these components which help the students to access the unlimited e-learning benefits of the e-library.
• This present research designs the time selected from two fields “Learning and Digital Resources”, which present the scope of work related to the digital library services in the digital environment for University-based learning.
• The purpose of my study is to survey the effectiveness of digital library services based on learning satisfaction and its impact on student’s learning at the University of Sargodha.
• Digital library services have a positive impact on students' learning and research work.
• Nowadays, the world is a “World of Digital Resources” because it acquires all types of electronic information. In fact, the major importance of digital library services is to give different information in different ways to the students who come into the digital library. In addition, the perception of learning is promoted by the digital library that provides valuable references relevant to the topics of the students, but there are few doubts about the possibility of the digital library services for providing access to information.
• The larger term “Digital  Literacy” is used to provide an understanding of the different issues based on e-learning in this regard.
• This study is designed to survey the effectiveness of digital library services at the University of Sargodha based on learning satisfaction and its impact on students' learning.
• The research suggests additional quantitative investigations, and comparative research to fully understand the ethical issues and develop responsible implementation techniques to solve these issues.
• The conclusion of data privacy concerns the students in guiding the use of digital libraries in higher educational systems. Studying through e-libraries is essential.

Action Research

 

At the International Federation for Information Processing conference last year in Philadelphia, presenters generally agreed that qualitative approaches to information systems research are finally gaining acceptance. Such approaches include grounded theory, ethnography, and case study. At the conference, Lynne Markus of Claremont Graduate University, who for years has advocated qualitative research methods, declared, "We have won the war, let us celebrate." She did not mean, however, that quantitative research, in the form of, say, mathematical modeling, statistical analysis, and laboratory experiments, represents an enemy or is bad research and is now defeated, but that qualitative approaches are now accepted as equal in value to quantitative approaches when used appropriately.

Action research combines theory and practice (and researchers and practitioners) through change and reflection in an immediate problematic situation within a mutually acceptable ethical framework. Action research is an iterative process involving researchers and practitioners acting together on a particular cycle of activities, including problem diagnosis, action intervention, and reflective learning.

We use information systems as the exemplar of how to benefit from action research methods, though software engineering and systems science, among others, could be used because their application domains also include real organizations. For developing information systems, action research has already made five key contributions:

• The Multiview contingent systems development framework [2];
• The soft systems methodology.
• The Tavistock School's sociotechnical design.
• Scandinavian research efforts intended to empower trade unions and strengthen the bargaining positions of users in systems development.

The Effective Technical and Human Implementation of Computer-based Systems (ETHICS) participative and ethical approach to information systems development.

Conventional systems analysis approaches, such as structured analysis and data analysis, emphasize the "hard" aspects of the problem domain, that is, the certain and the precise. A hard approach is prescriptive and might be applied fairly consistently between organizations and within organizations. 

Individual Differences

  

1. Drever James:

“Variations or deviations from the average of the group, concerning the mental or physical characteristics, occurring in the individual member of the group are individual differences.”

2. Good, C.V.:

“The variation or deviations among individuals regarding a single characteristic or several characteristics, those differences which in their totality distinguish one individual from another.”

3. Skinner, C.E.:

“Today we think of individual differences as including any measurable aspect of the total personality.”

4. Woodworth, R.S. and Marquis, D.G.:

“Individual differences are found in all psychological characteristics physical mental abilities, knowledge, habit, personality, character traits.”

Types of Individual Differences:

1. Physical differences:

2. Differences in intelligence:

3. Differences in attitudes:

4. Differences in achievement:

5. Differences in motor ability:

6. Differences on account of sex:

7. Racial differences:

8. Differences due to nationality:

9. Differences due to economic status:

10. Differences in interests:

11. Emotional differences:

12. Personality differences

13. IQ differences

Causes of Individual Differences:

1. Heredity:

2. Environment:

3. Influence of caste, race, and nation:

4. Sex differences:

5. Age and intelligence:

6. Temperament and emotional stability:

7. Other Causes:

8. Economic condition and education:

9. Gender

10. Relationship

Role of Individual Differences in Education:

One of the important objectives of modern education is the complete development of the individual. Individuals have different goals, different interests, different emotional problems, and different abilities. We cannot afford to ignore these individual differences in imparting education to children. Since school work is planned on a group basis it presents a formidable challenge to all teachers.

Practical procedures for adapting school work to individual differences are suggested:

1. Limited size of the class:

2. Proper division of the class:

3. Home task:

4. Factor of sex:

5. Curriculum:

6. Methods of Teaching:

7. Educational Guidance:

8. Vocational Guidance:

9. Individual Training:

10. Dalton Plans 

Gravitational force and Newton law

 

Gravity

The force of gravity, or gravitational force, pulls objects with mass toward each other. We often think about the force of gravity on Earth. This force is what keeps your body on the ground. But any object with mass exerts a gravitational force on all other objects with mass. For example, there is a gravitational force between you and every object around you! The gravitational force between two objects is larger when the masses of the objects are larger. That’s why you can feel the gravitational force between you and Earth, but the force between you and objects with smaller masses is too weak to feel. The gravitational force between two objects also depends on the distance between their centers (Khan Academy).

What Is Gravitational Force?

Gravitation is a study of the interaction between two masses in the world. Out of the two masses, the heavier one is called source mass, and the lighter one is called test mass.

Gravitational force is a central force that depends only on the position of the test mass from the source mass and always acts along the line joining the centers of the two masses. 

F(r) = F(r)r

The interaction between the two masses and their relativistic effects is understood. 

(byjus.com).

Newton Law

This force of attraction was first observed by Sir Isaac Newton and was presented as Newton’s law of gravitation in the year 1680. However, gravitation can generally exist in two main instances.

1. Gravitation may be the attraction of objects to the earth.

For example,

If a body (ball) is thrown upwards, it reaches a certain height and falls downwards because of the gravity of the earth.

2. Gravitation may be the attraction of objects to outer space.

For example,

The force of attraction between other planets and the sun.

Realism

 

Realism

Realism is a school of philosophy with origins in the work of Aristotle. This philosophy emphasizes that “reality, knowledge, and value exist independent of the human mind” (Johnson, 2011, p. 89). 

Key Philosophers

Aristotle (384 – 322 BCE): 

Aristotle is known as the father of realism and the Scientific Method. His pragmatic approach to understanding an object, by understanding its form, is an example of how he investigated matter. To understand this concept. Finally, Aristotle was the “first to teach logic as a discipline in order to be able to reason about physical events and aspects” (Cohen, 1999, p. 1).

Key Features of Realism 

• Accurate Representation:
• Attention to Detail: 
• Objective Perspective: 
• Social Criticism: 
• Focus on the Common People:

Metaphysics of Realism:

The metaphysics of realism is a philosophical position that asserts the existence of an objective reality independent of human thought or perception.

Epistemology of Realism

The epistemology of realism concerns how knowledge and understanding of the world are obtained within a realist framework. It explores questions such as how we can know about the external world, what constitutes reliable knowledge, and what role perception, reason, and evidence play.

Axiology of Realism

The axiology of realism focuses on the values and ethics within a realist framework. It examines questions related to the nature of values, moral realism, and the relationship between objective reality and ethical principles. While realism primarily deals with metaphysics and epistemology, its axiology explores ethical and evaluative aspects.

 Educational Implications of Realism

• Emphasis on Real-World Relevance:
• Objectivity in Teaching and Learning:
• Attention to Detail and Observation:
• Integration of Social Context: 
• Authentic Assessment: 
• Promotion of Well-Rounded Education:

 Teaching methods 

Teaching methods used in realism include:

• Demonstration
• Recitation
• Critical thinking
• Observation
• Experimentation

Criticism on Realism

Subjectivity and Interpretation: 

Incomplete Representation: 

Exclusion of Marginalized Voices: 

Neglect of Idealism and Possibility: 

Computer-based technology:

 

Computer-based technology is the means to produce and deliver materials by using a device that is sourced from the microprocessor. Basically, it refers to the integration of computer-based technology and digital resources into the educational environment to enhance teaching and learning processes. Here are some key aspects of computer-based educational technology:

• E-learning is also called electronic learning.

• It is more related to advanced learning technology, which is included in e-learning.

• E-learning is a new concept of education that is different from traditional learning. 

• It provides a new arrangement for learning.

The main feature of e-learning is that the presentation and communication of learning contents is done through an internet system.

Online Learning Platforms: 

Platforms like Coursera, Canvas, and Khan Academy offer a wide range of online courses, often collaborating with universities and institutions to provide flexible learning opportunities.

Mobile Learning (M-Learning):

 The use of mobile devices, such as smartphones and tablets, to access educational content. Mobile learning allows for flexibility and learning on the go.

Video-Assisted Learning:

In recent years, video-assisted learning has become more and more popular as classroom displays. With the internet and digital devices, every day can be a “video day". This trend is also booming in distance learning conditions, in which students learn through computer screens. Videos, especially animated videos, are extremely beneficial to enrich lessons and make content comprehensible. It improves students’ outcomes and reduces teachers’ workload.

Artificial intelligence:

 Al-tools can automate basic activities in education, like grading. Furthermore, both learners and educators could benefit from AI. For example, students could get help from AI tutors when teachers are too busy to take care of everyone. 

Interactive and multimedia stations in education:

Interactive media:

It refers to how people process and share information or how they communicate with each other. Interactive media allows people to learn.

"AI– An ethical opportunity or Challenge for HEC"

Abstract:

Conversational bots are getting more and more popular, and tech giants like IBM, Facebook, Google, and other top companies are helping to make this happen. Newly generated AI tools i.e. ChatGPT is also called a Chatbot.

Purpose:

 There's a brand new chatbot called Chat-GPT that's revolutionizing a lot of fields that used to be led by humans, and it even writes essays for you. Does it help or hurt education? Teachers' English assignments submitted to Chat-GPT had better results than their students'. ChatGPT can produce anything from cover letters to summaries. Schools and institutions could be severely disrupted. The goal of this paper is to address the main problem of the educational system, like, Can Chat-GPT be Used as a tool for Teaching and Learning? However, we now need to understand how to use technology responsibly.

Design or Methodologies: 

This paper is conceptual in nature and to have a deeper understanding of the use of Chat-GPT in the education system we have used secondary data by doing an extensive literature review.

Findings: 

The findings of this article recommend that though Chat GPT is still in the formative stages of its development, it can be used as a tool for teaching and Learning. However, both teachers and students need to learn how to use this technology responsibly.

Originality or value: 

Real power carries a nice deal of responsibility, and Open-AI has A lot of it. The DELL-E 2, and Chat-GPT models were first introduced By Open-AI, one of the first AI companies to have a substantial impact on society. Chatbots may have an impact on education. The paper discusses both the merits and limitations of ChatGPT in the education sector and finally, it recommends the use of ChatGPT in the education sector and adds reinforcement in the learning environment.

Integrating Technology into the Curriculum and Instruction:In

 

         

Introduction:

Integrating technology into the curriculum and instruction involves incorporating various technological tools and resources to enhance teaching methodologies, engage students, and improve learning outcomes across diverse subjects and disciplines.

Technology in Science and Mathematics Instruction:

• Simulation Software:

Utilized for conducting virtual experiments, visualizing complex concepts, and solving mathematical problems.

• Online Tools and Apps:

Aid in data analysis, graphing, and providing interactive lessons for science and math topics.Technology in Social Science Instruction:

Digital Archives and Databases:Access to historical documents, multimedia resources, and research materials for studying societal aspects.

• Geographical Information Systems (GIS):

Used for mapping and analyzing geographic data in geography and related subjects.Technology in Language Arts and Foreign Language Instruction:

• Online Writing Tools:

Support writing and editing, providing grammar checks and suggestions.

• Language Learning Apps and Platforms:

Offer interactive lessons, vocabulary practice, and cultural immersion for foreign language learners.

Technology in Music and Art Instruction:

• Digital Tools for Composition and Design:

Software for creating music compositions, digital art, graphic design, and animation.

• Virtual Museums and Galleries:

Provide access to artistic masterpieces and cultural artifacts for study and appreciation.

Technology in Exceptional Student Education:

• Assistive Technologies:

Tools and apps designed to aid students with disabilities, supporting learning and communication

Issues and Trends Related to Technology Use in Instruction:

• Digital Divide:

Disparities in access to technology and resources among different socioeconomic groups.

• Privacy and Security:

Concerns about data privacy and security while using educational technology platforms.

• Digital Literacy and Skills:

Addressing the need for training educators and students in effectively utilizing technology for learning.

Educational Technology Resources:

• Online Educational Platforms:

Learning management systems (LMS) offering various courses and resources.

• Open Educational Resources (OER):

Freely accessible teaching materials, including textbooks, videos, and lectures.

• Professional Development Programs:

Training and workshops for educators to enhance their technological skills for media teaching.

"Media and Teaching"

Concept of Teaching: Structure and Features: 

Media and teaching: 

The Multifaceted Process Teaching is a multifaceted process that extends beyond the mere transmission of knowledge.

It involves the deliberate and systematic facilitation of:

1. Imparting knowledge:

Teaching is the act of sharing information, facts, concepts, and theories, aiming to deepen understanding and stimulate critical thinking among learners.

2. Cultivating skills:

It involves nurturing and refining a diverse range of skills, including problem-solving, communication, creativity, collaboration, and analytical thinking.

3. Instilling Values:

Teaching extends to fostering ethical values, social awareness, and moral responsibility, shaping individuals who contribute positively to society.

4. Fostering Growth:

It aims at fostering intellectual curiosity, emotional development, and social growth, encouraging lifelong learning and adaptability.

5. Creating Learning Environments:

Effective teaching involves establishing enriching, supportive, and inclusive learning environments that encourage exploration and discovery.

3. Classroom Management:

Creating a conducive learning environment through effective organization, discipline, and fostering positive interactions among students.

4. Assessment techniques:

Implementing diverse assessment methods (formative, summative, peer assessment, self-assessment) to gauge understanding and provide feedback.

Features of Successful Teaching Methodologies

Adaptability:

Ability to adjust teaching methods, content, and strategies to meet diverse needs, learning styles, and evolving education and scapes.

Engagement:

Creating interactive, stimulating, and participatory learning experiences that sustain student interest, promote active involvement, and encourage critical thinking.

Assessment strategies:

Employing a variety of assessment tools and techniques to gauge student understanding, provide feedback, and guide further learning effectively.

Innovation and creativity:

Encouraging innovative approaches, creativity, and experimentation in teaching methodologies to enhance learning outcomes and student engagement.

Inclusivity and Differentiation:

Designing teaching practices that accommodate diverse learners, ensuring inclusivity, and providing opportunities for differentiated instruction.

Professionalism in Teaching: Attributes and Responsibilities: Defining Professionalism:

Professionalism in teaching encompasses a range of attributes and responsibilities that encourage the educational systems of every organization.

"Educational Impact and Considerations of AI Tools in Higher Education System”

 Abstract:

This paper explores the academic influence and considerations of students’ use of Artificial Intelligence tools using Large Language Models (LLMs) such as ChatGPT in formal assessments. We examine the evolution of these tools and highlight potential ways that LLMs can support student learning in digital writing and beyond, in addition to the teaching of writing and composition by humans and AI. This system facilitates learners to gain knowledge, and possibilities for co-creation between, supporting EFL learners, and improving automated writing assessment (AWE). We describe and demonstrate the potential that these tools have in creating original, coherent text that can avoid detection by existing technological methods of detection and trained educational staff alike, demonstrating a major academic influence concern related to the use of these tools like Chat-GPT by students. Analyzing the various issues related to academic integrity that LLMs raise for both higher education institutions and students, we conclude that it is the use of AI tools It is not student use that defines whether plagiarism or a breach of academic integrity has occurred, but whether any use has been made. Explained by students. Deciding whether a particular use of LLMs by students can be described as academic misconduct is determined by any HEI's GPT-3 integrity policies, which is important to consider. How the tools will be used in future educational environments. 

• Use of these tools will not necessarily be considered plagiarism if students are transparent about how they are used in any submission. However, this may be a violation of any higher education institution's academic integrity policies.
• These tools have legitimate uses in supporting the education system, and meaning that HEIs should carefully consider how policies regarding student use of this software are created.
• These AI tools sometimes generate plagiarized data and impact on educational considerations in HEC.

 

"Exploring Learners' Perceptions of an AI Tool: ChatGPT".

 Abstract:

• ChatGPT has generated excitement and skepticism in education. 
• Understanding how students perceive ChatGPT and assessing its potential and challenges is critical to analyzing its impact on teaching and learning. Toward this, we conducted a two-stage study with senior students in a computer engineering program (n=46). In the first phase, we asked students to evaluate ChatGPT using their own words when they used it to complete a learning activity.
• The returned responses (2478 words) were analyzed by coding and theme building. We used the derived codes and themes in the second stage to create a 37-item questionnaire. Students answered the questionnaire three weeks later after completing other activities with the help of AI tools. We explored students' perceptions of AI-TOOLS like ChatGPT.
• Results show that students appreciate the capabilities of ChatGPT and find it interesting, motivating, and helpful for study and work. 
• They find it easy to use and appreciate its human-like interface that provides well-structured answers and good explanations. However, many students feel that ChatGPT answers are not always correct and most of them believe that it requires good background knowledge to work with it as it is not a substitute for human intelligence. would take Therefore, most of the students feel that ChatGPT needs improvement but they are optimistic that it will be done soon. When it comes to the negative impact of ChatGPT on learning, academic integrity, job, and life, the students are divided. 
• We conclude that ChatGPT can and should be used for learning. However, educators should try to use ChatGPT and guide students in effective motivational techniques and to gauge the responses generated. 
• Developers should improve their models to increase the accuracy of the answers provided.
• This study provides insight into the potential and limitations of ChatGPT in education and informs future research and development on various topics of plagiarism-free data.

"Assess Support Systems and technical infrastructure for Implementing CALL in HEC"

 

 

Abstract:

• Implementation of Computer Assisted Language Learning (CALL) in higher education institutions is a complex process that requires careful consideration of various factors. (Machmud, 2020), emphasizes the importance of integrating CALL into the English education curriculum, particularly in preparing student teachers for the technology used in their future classrooms at the university level and increasing language.
• Successful implementation of CALL programs at the university level depends on critical evaluations and decisions made by the higher education system.
• The use of conversational bots such as Facebook, IBM, Instagram, and Google is making it easier to generate a chatbot which is also known as a virtual assistant that can be used to connect with an audience globally contact a business, and receive assistance from more experienced people (Harpreet Singh†, 2023). 
• The integration of CALL subjects into the English education curriculum and instruction is designed. Integration of technology in educational settings is something to be said. However, (Ismail, 2011) identifies several barriers to integrating CALL, such as teachers' knowledge of technology and pedagogy, computer facilities and resources, and personal beliefs about language teaching.
• Teachers are engaged participants in the change process. 
• The partnership of pedagogical expertise and technological innovation remains the work’s focus—a technology-focused professional development strategy aimed at supporting faculty members in integrating technology into their teaching practices in higher education institutions. 
• Universities and public schools should provide resources and training to support English learners' language learning. (Timuçin, 2006) underscores the need for teachers to be active participants in the implementation process, while (Levy, 2006) highlights the importance of finding the right balance in using CALL. 
• These studies collectively suggest that while there is potential for the use of CALL in higher education, careful attention must be paid to addressing barriers like pedagogical or curriculum and ensuring effective implementation in English language learning.

“Students’ perception on using ChatGPT in higher education”

Abstract:

•  The study explores the Students’ perception of using Chat-GPT, a language-based AI system, how to transform AI tools in higher education rapidly, opportunities, and ethical issues of using it at higher educational levels, particularly in different departments in various disciplines. 
• The use of conversational bots is making it easier to generate a Chatbot which is also known as a virtual assistant that can be used to connect with an audience globally, contact a business, and receive assistance from more experienced people. 
• The study surveyed 150 students to understand their experiences and motivations for using AI tools and observed students’ responses to using it. 
• The aim of my study is to add to other research by exploring the use of AI tools in HEIs and proposing possible solutions to the problems generated by other researchers in their studies. The larger term “digital literacy” is used to provide an understanding of the different issues and possibilities based on proposing digital learning by using ChatGPT in HEC. 
• This study is designed to survey the use of ChatGPT and students’ learning perceptions in higher educational institutions, mostly accessible and mostly having positive or negative responses to it. They recognized the value and responsibility of using Chat-GPT in creating individualized educational levels. 
• The findings highlight the opportunities, challenges, and ethical issues during the emergence of ChatGPT in higher education and students’ perceptions and behaviors whether positive or negative towards ChatGPT. 
• The research suggests additional quantitative investigations, and comparative research to fully understand the ethical issues and principles, and develop responsible implementation techniques to solve these issues. 
• The study discusses the benefits and challenges of using AI in education. The conclusion of data privacy concerns to the students in guiding the use of AI tools in higher education. AI tools have emerged in every field of education.

Antineoplastic agents and classification

Antineoplastic agents and their classification 

Anti-metabolites (Pyrimidine, Purine, Folic acid analogs)

Introduction

"Antiplastic agents are drugs used to treat cancer, malignancies, carcinomas, sarcomas, tumors, neoplasms or leukemias."

Other names for antineoplastic drugs are chemo, anticancer, cytotoxic, toxic drugs, or chemotherapy. These drugs are available in many forms, including liquids or pills.

Neoplasm

“Neoplasm refers to the group of diseases caused by several agents like chemical compounds and radiant energy”

Cancer:

“Cancer is characterized by an abnormal and uncontrolled division of cells that produces a tumor and invades adjacent normal tissues."

Often cancer cells separate themselves from the primary tumor and are carried by the lymphatic system to reach distant sites of the organ, where they divide and form a secondary tumor (metastasis).

Antineoplastic agents or anticancer drugs represent a diverse and large class of drugs. They generally have limited but important uses, and often have hepatotoxicity.

Classification

Antineoplastic agents are classified as:

1) Alkylating agents

2) Antimetabolites

3) Antibiotics

4) Enzymes

5) Plant products

6) Hormones

7) Immunotherapy

8) Monoclonal antibodies

9) Radiotherapeutic agents

ANTI-METABOLITES

1. PYRIMIDINE ANALOGUES

Pyrimidine analogs are antimetabolites that interfere with nucleic acid synthesis. Generally, they are hydrophilic molecules and require specialized membrane transporters for entry into cells. Intracellular enzymes, such as deoxycytidine kinase, convert these drugs to active metabolites by phosphorylation. 

Their antiproliferative effect is achieved by binding to DNA, leading to chain termination and inhibition of DNA synthesis. Structural changes of these metabolites may occur in the pyrimidine ring.

DRUG: 5-FLUOROURACIL

5-Fluorouracil was developed in 1957.

5-Fluorouracil was utilized for a variety of dermatologic and neoplastic disorders and identified as early as 1962 as a promising treatment for keratoacanthomas, actinic keratosis, and skin cancer.

5-Fluorouracil’s selective cytotoxicity and minimal effect on normal skin cells make it a promising therapeutic option for many dermatologic conditions. 

BENZODIAZEPINES

INTRODUCTION

Benzodiazepines are a class of depressant drugs whose core chemical structure is the fusion of a benzene ring and a diazepine ring. They are used for the treatment of conditions such as anxiety disorders, insomnia, and seizures. They are informally referred to as Benzos.

MODE OF ACTION

Benzodiazepine receptors are present in the brain and they form a part of GABAA receptor ′s chloride ion channel macromolecular complex. The binding of benzodiazepines to these receptors produces activation of GABAA receptors and increases chloride conductance by increasing the frequency of opening the chloride ion channel. These in turn inhibit neuronal activity through hyperpolarization and depolarization.

TYPES OF BENZODIAZEPINES

Benzodiazepines differ in how quickly they start working, how long they last, and what they are usually prescribed for. These include

• Diazepam

• Nitrazepam

• Oxazepam

• Triazole benzodiazepines

DIAZEPINES

IUPAC NAME

7-Chloro-1-methyl-5-phenyl-1,4-benzodiazepin-2-one

PROPERTIES 

It is a white or almost white crystalline powder. Soluble in ethanol and very slightly soluble in water. Sedation and anti-anxiety effects may take a long time to achieve, during which time the patient can usually be maintained on medication once or twice a day.

USES

It is used as

• Skeletal muscle relaxant

• Anticonvulsant

• Antianxiety agent

BRANDS

• Calmpose

• Valium

• Diazepam

NITRAZEPAM

7-Nitro-5-phenyl-1,4-benzodiazepin-2-one

PROPERTIES

It is 

• A yellow crystalline powder

• Slightly soluble in alcohol

• Insoluble in water

USES

It is used as 

• Sedatives and hypnotics

• In the management of myoclonic seizure

BRANDS

• Dormitory

• Nipam

• Nitrosun

OXAZEPAM

IUPAC NAME 

7 Chloro 3 Hydroxy 5 phenyl 1,4 benzodiazepin 2 one

PROPERTIES

It is a white and almost white crystalline powder.

• Slightly soluble in ethanol

• Insoluble in water

USES

It is useful for the control of acute tremulousness, or anxiety associated with alcohol withdrawal (rashes).

Vinca AlkaloidsIntroduction

Vinca Alkaloids Introduction 

Vinca alkaloids are a class of organic compounds containing carbon, hydrogen, nitrogen, and oxygen that are often derived from plants called alkaloids. Although the name represents alkali some do not exhibit alkaline properties. Many alkaloids with poisonous characteristics have physiological effects too which makes them useful as medicines. The oldest group of plant alkaloids groups that are used to treat cancer are the vinca alkaloids. 

Mechanism of action

The main mechanisms of alkaloid cytotoxicity are due to their interactions with tubulin and disruption of microtubule function, particularly of microtubules comprising the mitotic spindle apparatus, directly causing metaphase arrest. However, they can exert many other biochemical activities that may or may not be related to their effects on microtubules. The vinca alkaloids connect to binding sites on tubulin that are separate from those of the taxanes, colchicine, podophyllotoxin alkaloids, and guanosine-5’-triphosphate. Binding occurs rapidly and can reverse too. Current evidence maintains the existence of two vinca alkaloid binding sites per molecule of the tubulin dimer. We can see near to 16-17 high-affinity binding sites in each microtubule that are located at the ends of each microtubule. The binding of vinca alkaloids to these sites disrupts microtubule assembly, but one of the most important effects of low drug concentrations is to decrease the rate of both elongation and shortening at the assembly end of microtubules, which is a "Kinetic Cap" that can generate and suppress function.

Nitrogen and mustard

Introduction

Nitrogen mustards (NMs) are cytotoxic organic compounds with the bis(2-chloroethyl) amino (ClC2H4)2NR) functional group. Although originally produced as chemical warfare agents, they were the first chemotherapeutic agents for the treatment of cancer. Nitrogen mustards are nonspecific DNA alkylating agents.

Name 

Nitrogen mustard is not related to the mustard plant or its pungent essence, but allyl isothiocyanate of the plant name.