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Теория отраслевых рынков (Industrial Organization)

About this course: Курс посвящен факторам, влияющим на размер компаний и структуру рынка. Почему на одних рынках преобладают малые компании, а на другом крупные? Продавцы принимают решения стратегически, однако их стимулы в свою очередь зависят от структуры рынка и от предшествующих решений. Как разделить между зоной предопределенных и свободных решений? Например, сговор как модель ценового поведения – предопределен структурой рынка или служит результатом свободного волеизъявления? Способны ли укоренившиеся на рынке продавцы препятствовать входу новичков, защищая свою рыночную долю и свою прибыль? Каковы лучшие способы предотвращения ценовых сговоров продавцов? Нужно ли (или по крайней мере желательно) запрещать или ограничивать слияния между крупными продавцами? Есть ли необходимость для государственной политики налагать ограничения на условия договоров между производителем и дистрибьютором? Как в этих условиях должна быть организована государственная политика (применение антимоноп…

Understanding Plants - Part I: What a Plant Knows

Understanding Plants - Part I: What a Plant Knows

About this course: For centuries we have collectively marveled at plant diversity and form—from Charles Darwin’s early fascination with stems and flowers to Seymour Krelborn’s distorted doting in Little Shop of Horrors. This course intends to present an intriguing and scientifically valid look at how plants themselves experience the world—from the colors they see to the sensations they feel. Highlighting the latest research in genetics and more, we will delve into the inner lives of plants and draw parallels with the human senses to reveal that we have much more in common with sunflowers and oak trees than we may realize. We’ll learn how plants know up from down, how they know when a neighbor has been infested by a group of hungry beetles, and whether they appreciate the music you’ve been playing for them or if they’re just deaf to the sounds around them. We’ll explore definitions of memory and consciousness as they relate to plants in asking whether we can say that plants might even be aware of their surroundings. This highly interdisciplinary course meshes historical studies with cutting edge modern research and will be relevant to all humans who seek their place in nature. This class has three main goals: 1. To introduce you to basic plant biology by exploring plant senses (sight, smell, hearing, touch, taste, balance). 2. To introduce you to biological research and the scientific method. 3. To get the student to question life in general and what defines us as humans. Once you've taken this course, if you are interested in a more in-depth study of plants, check out my follow-up course, Fundamentals of Plant Biology.

Created by:  Tel Aviv University

LevelBeginner
Commitment25 hours of videos, quizzes, and reading assignments
Language
EnglishSubtitles: Portuguese (Brazilian), French, Hebrew
How To PassPass all graded assignments to complete the course.
User Ratings
Average User Rating 4.8See what learners said
Syllabus
WEEK 1
Introduction
Welcome to "What a Plant Knows (and other things you didn't know about plants)". If you have not already, please review the Course Syllabus for general information about this course. 
9 videos
  1. Video: Course Promo
  2. Video: 1.1 Introduction
  3. Video: 1.2 Our Life and Plants
  4. Discussion Prompt: What plant could you not live without? why?
  5. Video: 1.3 Plants and Biology Research
  6. Video: 1.4 Plants and Food Security
  7. Video: 1.5 Major Themes in Plant Biology
  8. Video: 1.6 Scientific Process
  9. Video: 1.7 The Evolution of Plant Structure and Senses
  10. Video: 1.8 Plant Evolution
Graded: Introduction
WEEK 2
What a Plant Sees?
This week we start a systematic review of a plant's sensory systems by starting with plant responses to light. We will cover an overview of human vision, plant responses to light, Darwin's experiments showing plant responses to light, phototropism, phytochrome and flowering, and modern research on phototropism. In other words, this week we get into more advanced concepts in plant sensory biology. The last module is especially advanced, and will be clearer for those of you with a strong biology background. But do not fret, aside from very basic concepts, this module will NOT be included in the exam (you will not NOT be responsible for understanding the intricacies of the experimental methods, etc.). If you have not already, please review the Course Syllabus for general information about this course.
7 videos1 reading
  1. Reading: Week 2 - Suggested Reading
  2. Video: 2.1 Introduction
  3. Video: 2.2 Darwin's Experiment
  4. Video: 2.3 Light and Flowering
  5. Video: 2.4 Phytochrome: A Light-Activated Switch
  6. Video: 2.5 Arabidopsis Blind Mutant
  7. Video: 2.6 What a Plant Sees?
  8. Video: 2.7 Molecular Biology of Plant Vision
Graded: What a Plant Sees?
WEEK 3
What a Plant Smells?
This week we continue our systematic review of a plant's sensory systems by exploring responses to volatile chemicals (in other words, what a plant smells). We start with an overview of the plant cell, briefly review human olfaction (smell), and then explore how fruits know when to ripen. From there we go over three different experiments that explore plant responses to volatile chemicals and start exploring the controversial question, "Do plants communicate with each other?".
7 videos1 reading
  1. Reading: Week 3 - Suggested Reading
  2. Video: 3.1 Introduction to the Plant Cell
  3. Video: 3.2 Lock and Key Mechanism of a Receptor
  4. Video: 3.3 Ethylene and Fruit Ripening
  5. Video: 3.4 Mechanism of Ethylene Receptor
  6. Video: 3.5 Plant Communication: Example 1
  7. Video: 3.6 Plant Communication: Example 2
  8. Video: 3.7 Inter and Intra Communication
Graded: What a Plant Smells?
WEEK 4
What a Plant Feels?
This week we continue our systematic review of a plant's sensory systems by exploring responses to tactile stimulation (in other words, what a plant feels). We start with an overview of the mechno-sensory system that differentiates between different tactile stimulations, briefly review the way electricity is used in neural communication, and then explore how the Venus flytrap knows when to close, and what powers the opening and closing of the Mimosa leaves. We'll learn how plants change their structure to cope with windy conditions, and go over some of the rather complex biology that is involved in the genetic response in plants to being touched. I'll let you know what I think of the question, Do plants feel pain? And then we'll try to understand whether plants hear, and if they do, which music they prefer.
9 videos1 reading
  1. Reading: Week 4 - Suggested Reading
  2. Video: 4.1 Introduction to the Human Mechano-Sensory System
  3. Video: 4.2 How Does the Venus Trap Know When it has been Touched?
  4. Video: 4.3 Water and the Plant Cell
  5. Video: 4.4 Leaf Movement in Mimosa
  6. Video: 4.5 Thigmomorphogenesis
  7. Video: 4.6 Genes that Respond to Touch
  8. Video: 4.7 Do Plants Feel Pain?
  9. Discussion Prompt: What do you think: do plants feel pain?
  10. Video: 4.8 The Sound of Music and Plants
  11. Video: 4.9 Plants and Deaf Genes
Graded: What a Plant Feels?
WEEK 5
How a Plant Knows Where it is?
This module we continue our systematic review of a plant's sensory systems by exploring the 6th sense - proprioception. This week we continue our systematic review of a plant's sensory systems by exploring the 6th sense - proprioception. We start with an overview of the proprioceptive system that allows us to keep our balance and to know where are body parts are in space. The we explore how plants know up from down, using both experiments from a few hundred years ago, and experiments conducted on the space station. We'll go over the structure of roots more in detail in order to understand where the cells are that sense gravity. We'll revisit phototropism, and learn what the chemical signal is in plants that allows them to respond to light and gravity. And lastly we'll learn what makes a plant dance.
8 videos1 reading
  1. Reading: Week 5 - Suggested Reading
  2. Video: 5.1 How a Plant Keeps its Balance
  3. Video: 5.2 Plant Response to Gravity
  4. Video: 5.3 Gravitropism in Roots
  5. Video: 5.4 The Discovery of Auxin
  6. Video: 5.5 Auxin Transport
  7. Video: 5.6 Auxin and Root Initiation
  8. Video: 5.7 Sensing Gravity
  9. Video: 5.8 Circumnutation
Graded: How a Plant Knows Where it is?
WEEK 6
What a Plant Remembers?
This week we move beyond survey of a plant's sensory systems, and explore how plants retain, store and recall sensory information. In other words, we ask the questions, What do plants remember? We'll try to define what we mean by "memory" and briefly review different types of human memory. The we'll look at the short-term memory found in the Venus fly trap, and the long term morphogenic memory first described 50 years ago by the Czech scientist Rudolf Dostal. We'll have a guest lecture from Prof. Nir Ohad about epigenetics and the long-term memory of winter, and even the role of epigenetics in trans-generational memory.
6 videos1 reading
  1. Reading: Week 6 - Suggested Reading
  2. Video: 6.1 What a Plant Remembers?
  3. Video: 6.2 Short Term Memory
  4. Video: 6.3 Long Term Memory 1
  5. Video: 6.4 Long Term Memory 2 (with Prof. Nir Ohad)
  6. Video: 6.5 Epigenetic Heredity
  7. Video: 6.6 Intelligent Memory?
  8. Discussion Prompt: What do you mean when you say "intelligent"?
Graded: What a Plant Remembers?
WEEK 7
The Aware Plant
This is the final week in our journey through a plant's sense of the world. This week's lecture has two separate parts. In the the first part, we continue last week's discussion of a plant's ability to remember to a more theoretical discussion on the definition of memory and consciousness. This leads us to the question, "Are plants intelligent?". We'll hear what some of the students in this class think of intelligence before finishing with a quick examination of "intelligence", and end with my own take on a plant's, and our place, in the world. In the second part we'll go for a tour of my lab and see our plant growth facilities. I'll give you a brief overview of one of the projects in my lab, and you'll meet a few of the students doing the research. And in the end, you'll even get to meet Dr. Aviva Katz.
6 videos1 reading
  1. Reading: Week 7 - Suggested Reading
  2. Video: 7.1 Memory and Consciousness
  3. Video: 7.2 What Do We Mean When We Say "Intelligent"?
  4. Video: 7.3 A Tour of the Manna Center
  5. Video: 7.4 Research in the Chamovitz Lab
  6. Video: 7.5 Food Security
  7. Video: Bloopers (oops!)
Graded: Final
How It Works
Coursework
Coursework
Each course is like an interactive textbook, featuring pre-recorded videos, quizzes and projects.
Help from Your Peers
Help from Your Peers
Connect with thousands of other learners and debate ideas, discuss course material, and get help mastering concepts.
Certificates
Certificates
Earn official recognition for your work, and share your success with friends, colleagues, and employers.
Creators
Tel Aviv University
Tel Aviv University (TAU) is Israel's largest institution of higher learning – with over 30,000 students and more than 125 schools and departments in nine faculties. Global in outlook and impact, it is consistently ranked among the world's top 100 universities, as well as the top 20 institutions in terms of scientific citations. A spirit of openness and innovation is evident in all of TAU's teaching and research activities, breaking down barriers between disciplines, and boldly striving to address the twenty-first century's most pressing challenges.
Learn more about this course

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