Cell division is a process where a parent cell divides into two or more daughter cells. It begins with interphase, where the cell grows and duplicates its DNA. Interphase is followed by mitosis, where the nucleus divides into two identical daughter nuclei. Cytokinesis then separates the cytoplasm, forming two or more identical daughter cells each with the same number of chromosomes as the parent cell. Meiosis produces gametes with half the normal number of chromosomes through two rounds of nuclear division followed by cytokinesis.
Continuation of the cell structure and function. This presentation highlights the cell cycle and concentrate on how cell division occur and the steps involved in cell dividing.
2018/2019
Continuation of the cell structure and function. This presentation highlights the cell cycle and concentrate on how cell division occur and the steps involved in cell dividing.
2018/2019
Visualizing Chronic Health (SXSW 2015)Sparks Grove
Brian Sherwell (Sparks Grove) presented an innovative approach to understanding chronic health conditions through visualization at one of SXSW's Interactive sessions.
The study of the cell cycle focuses on mechanisms that regulate the timing and frequency of DNA duplication and cell division. As a biological concept, the cell cycle is defined as the period between successive divisions of a cell. During this period, the contents of the cell must be accurately replicated.
The cell cycle is regulated by cyclins and cyclin-dependent kinases.
How long is one cell cycle?
Depends. Eg. Skin cells every 24 hours. Some bacteria every 2 hours. Some cells every 3 months. Cancer cells very short. Nerve cells never.
Programmed cell death:
Each cell type will only do so many cell cycles then die. (Apoptosis)
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
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A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
How world-class product teams are winning in the AI era by CEO and Founder, P...
cell division
1.
2. Cell division is the
process by which a
parent cell divides into
two or more daughter
cells.
Cell division is usually a
small segment of a
larger cell cycle.
3. Cell cycle is the period
from the time a new
cell is produced until
the cell completes
cell division.
Cell cycle starts with
interphase and is
followed by mitosis
and cytokinesis.
4.
5.
6. Interphase accounts for
about 90% of the cell
cycle.
This interphase is
subdivided into three
phases , that is
i) G1 (growth phase 1)
ii) S (synthesis phase)
iii) G2 (growth phase 2)
7. 1. Proteins and new
cytoplasm organelles such
as mitochondria and
chloroplasts are synthesised
during this stage.
2. The metabolic rate of the cell
is high.
3. The chromosomes are not
condensed and appear as
thread –like structure called
chromatin.
Interphase
8. 1. Synthesis of DNA occurs
during S phase.
2. DNA undergoes replication.
3. Each duplicated
chromosome consists of two
identical sister chromatids.
Interphase
9. 1. The cell continues to grow
and remain metabolically
active.
2. The cell accomulate energy
and completes its final
preparation for cell
division.
Interphase
10. Cell division starts with
nuclear division
(karyokinesis) and is
followed by cytoplasm
division (cytokinesis).
Nuclear division can be
divided into two major
parts:
a) mitosis
b) meiosis
11. Is cell division that
produces daughter cells
with the same number of
chromosomes as the
parent cell.
Occurs in:
a) meristems of plants
b) most somatic cells of
animals
12. a) Produces new cells to
replace cells that are worn
out and damaged
b) Produces new cells for
growth and maintenance in
living organisms
13. c) Mitosis is a form of
asexual reproduction for
Amoeba sp. and Hydra sp.
d) Preserves the diploid
chromosome numbers in
somatic cells
14. Mitosis is divided into 4
phases:
a) Prophase
b) Metaphase
c) Anaphase
d) Telophase
15.
16. 1. The chromosomes
condense , become
shorter and thicker ,
become visible clear
under light
microscope.
2. Each chromosome
now consists of pair
of sister chromatids
joined at centromere.
17. 3. Spindle fibre begin to
form.
4. At the end of the
prophase , nucleus
and nuclear membrane
begin to disappear.
18.
19. 1. Metaphase begin when the
centromeres of all the
chrmosomes lined up on
the metaphase plate.
2. The two sister chromatids
are still attached to one
another at the centromere.
3. Metaphase end when the
centromeres divide.
20.
21. 1. During anaphase , the two
sister chromatids of each
chromosomes separate at the
centromere.
2. The two sister chromatids are
pulled apart to the opposite
poles by the shortening of the
spindle fibres.
22. 3. Once separated , the
chromatids are referred to as
daughter chromosomes.
4. At the end of anaphase , the
two poles of the cell have
complete and equivalent sets
of chromosomes.
23.
24. 1. Telophase begin when the sets
of chromosomes reach the
opposite poles of the cells.
2. The chromosomes start to
uncoil and appear as
chromatines and become less
visible under light
microscope..
25. 3. The spindle fibres
begin to disappear.
4. The nuclear
membrane and the
nucleolus reforms in
each nucleus.
26. Cytokinesis is the division of
the cytoplasm occurs towards
the end of the telophase.
Through cytokinesis , the
daughter cells have all the
organelles , nutrients and
other components needed to
survive and maintain
themselves.
27.
28. Actine filaments in the
cytoplasm contracts to
pull a ring of the plasma
membrane inwards ,
forming a groove called
cleavage furrow until the
cell is separated in two
daughter cells.
29.
30. In plant cell , membrane
enclosed vesicles gather at
plant cells equator between
the nuclei.
31. The vesicles fuse to form cell
plate which divide the cell
into two daughter cells.
After cytokinesis , the new cell
enter G1 stage of interphase ,
complete the cell cycle.
32.
33. Is the process of nuclear
division that reduces the
number of chromosomes in
daughter cells to half that of
the parent cell.
34. Meiosis consists of two
separate nuclear divisions:
a) Meiosis I , which consists of
prophase I , metaphase I ,
anaphase I and telophase I
b) Meiosis II , which consists of
prophase II , metaphase II,
anaphase II and telophase II
35.
36. The chromosomes begin to
condense . They become
shorter , thicker and clearly
visible .
Homologous chromosomes
come together to form pairs of
bivalents through synapsis .
37. Each bivalent consists of a
tetrad . A tetrad consists of
two homologous
chromosomes , each of which
is made up of two sister
chromatids .
Non-sister chromatids
exchange segments of DNA in
a process of crossing over .
Crossing over causes new
combination of genes on a
chromosomes .
38. The points at which segments
of chromatids cross over are
called chiasmata .
At the end of Prophase I , the
nucleolus and nuclear
membrane disappear .
39. The two pairs of centrioles
migrate to the opposite
poles of the cell . Each pair
of centrioles acts as a
central point from which
the spindle fibes will radiate.
40.
41. The spindle fibres pull the
tetrads to the middle of the
cell.
Pairs of homologous
chromosomes align
themselves at the metaphase
plate of the cell.
42. One chromosome of each
homologous pair is attached
to fibres from one pole while
its homologue is attached to
fibres from the opposite pole.
43.
44. The spindle fibres pull the
homologous chromosomes
apart from one another and
move them to the opposite
poles of the cell.
Each chromosome still
consists of two sister
chromatids.
45. Each number of the
homologous chromosomes is
attached to spindle fibres.
At the end of anaphase I ,
each pole has only two
chromosomes (each with two
sister chromatids)
46.
47. The chromosomes arrive at
the poles.
Each pole now has haploid
daughter nucleus because it
contains only one set of
chromosomes.
The spindle fibres disappear.
52. The chromosomes are
positioned randomly at the
metaphase plate with the
sister chromatids of each
chromosome pointing
towards opposite poles.
Each sister chromatids is
attached to the spindle fibres
at the centromere.
53.
54. The centromeres of the sister
chromatids separate .
The sister chromatids of each
chromosome are now
individual chromosomes .
Each individual chromosome
moves towards the opposite
poles of the cell .
55.
56. Finally , the nucleoli and
nuclear membranes re-form .
The spindle fibres break down
Cytokinesis follows and four
haploid daughter cells are
formed. Each haploid cell
contains half the number of
chromosomes and is
genetically different from the
parent diploid cell . These
haploid cells become
gametes.