JC Bose Science Heritage Museum

Acharya Bhaban, Sir JC Bose Trust

Contact No : : (033) 2360 0078
J C Bose Science Heritage Museum (JCBSHM) in academic collaboration with Cambridge University Press (CUP)
Fifth Program
September 1, 2017
"Dynamics of Social Behaviour and Phenomena On Networks"

Speakers:

Disease spreading on complex networks: Analysis of the Recent Ebola outbreak
Prof. Parongama Sen
Physics Department, Calcutta University

Abstract:Disease spreading on complex networks: analysis of the recent Ebola outbreak Abstract: Modelling the spread of epidemics on complex networks has led to a number of interesting results in the recent past. Starting with a brief overview, we discuss the characteristic features of the Susceptible-Infected-Removed (SIR) model considered on a network embedded in Euclidean space with random long range interactions, chosen following a certain prescription. The data for the Ebola outbreak that occurred in 2014-2016 in three countries of West Africa are analysed within a common framework using this model.

Speakers:

Bribe and Punishment: An Analysis of Harassment Bribery
Prof. Supratim Sengupta
Physical Science Department
Indian Institute of Science Education and Research, Kolkata

Abstract:Harassment bribes, paid by citizens to corrupt government servants for services the former are legally entitled to, constitute one of the most widespread forms of corruption in many countries. While some countries (like India) make both bribe-giver and bribe-taker equally culpable, others impose a higher penalty on the bribe-taker.Evolutionary game theory provides a powerful tool for analyzing such scenarios of social conflict. After giving a brief introduction to evolutionary game theory, I will examine the consequences of symmetric and asymmetric penalties on the proliferation of corruption using deterministic and stochastic evolutionary game theoretic models of bribery in well-mixed(unstructured) and network-structured populations. I will show how evolution of individualchoices in a social conflict under different conditions and for different population structuresaffect the population dynamics, often in unpredictable ways, leading to profound onsequences for the persistence and proliferation of bribery in society.

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Fourth Program
August 14, 2017
"Magnetic Field Effects in Photochemistry"

The fourth programme in the Academic Discussion Series organized by J C Bose Science Heritage Museum in collaboration with Cambridge University Press was held at the AcharyaBhaban on August 14, 2017 (2:30 PM – 4:30 PM). The theme of the meeting was Magnetic Field Effects in Photochemistry. The speakers were Prof. SamitaBasu and Prof. DulalSenapati of the Chemical Sciences Division, Saha Institute of Nuclear Physics. The titles and abstracts of the talks are as follows.

Speakers:

Significance of magnetic field effects in photoinduced electron transfer reactions
Samita Basu
Chemical Sciences Division
Saha Institute of Nuclear Physics

In recent years we have been trying to study photophysical and photochemical aspects of inter- and intra-molecular electron/proton transfer and hydrogen abstraction reactions with small chemically and biologically important molecules and interactions of therapeutically important small molecules with proteins and DNA/RNA bases as well as with carbon nano-dots in homogeneous and heterogeneous confined media using steady-state and time-resolved spectroscopic techniques, magnetic field effects and theoretical modeling. Although steady-state and time-resolved absorption and fluorescence help to identify steady-state products and transient intermediates respectively, the importance of magnetic field effect lies in its ability to identify initial spin state of the photo-excited molecule, one of the deciding factors for ultimate products as well as to assess the intermediate distance between geminate spin-correlated radical ions / radicals produced as transients.

Speakers:

"Low Magnetic-Field-Induced Surface Enhanced Transient Spin-Trajectory Modulation (SE-TSTM): Interplay between Intramolecular and Intermolecular Spin-Rephasing"
Dr. Dulal Senapati
Saha Institute of Nuclear Physics, Kolkata-64

Abstract:The role of single-domain ferromagnetic nanostructure and the associated surface for many fold magnetic-field-induced surface enhanced transient spin-trajectory modulation (SE-TSTM) is a new venture in molecular spin dynamics. Though the inter conversion between spin isomers in the excited state is often forbidden by spin selection rule, hopping between two spin trajectory surface is quite probable due to their intramolecular [governed by spin-orbit (L-S) coupling] or intermolecular [governed by spin-mixing (g) or spin-spin (I-S) coupling] spin-rephasing-induced conical intersection. This lecture will explain the spin-trajectory modulation in great details

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Third Program
July 18, 2017
"Ethnic Ancestry and Diversity in India"

Speakers:

Linguistic diversity in India
Prof. Shyamsundar Bhattacharya
Philological Secretary, Asiatic Society, Kolkata
theasiaticsociety@gmail.com
"Genetic ancestry and diversity in India"
Prof. Partha Pratim Majumder
Distinguished Professor and Founder Director, National Institute of Biomedical Genomics,Kalyani and Professor, Indian Statistical Institute, Kolkata

Abstract:In India there are numerous spoken languages, considerable number of written languages (some with a long standing written traditions) including hundreds of dialectal forms, one margin into the next. Many of them have never been properly identified. Therefore, languageidentification is not a simple matter.

Of course, Grierson’s Linguistic Survey of India (1896-1928) recorded 179 languages and 544 dialects in India, people of India Series of the Anthropological Survey of India (1993) have identified 325 languages. However, the only source of official data on languages is the Indian decennial Censuses. The last Censuses of 2001 reports 122 languages (of which 22 are included in the 8th Schedule of the Indian Constitution) and 234 identifiable mother tongues grouped under appropriate languages are a linguistic abstraction of 1635 mother tongues reported by the people indicating their perception of linguistic identities.

In addition to their mother tongues, 2001 Census also reports as many as 250 million Indians speak atleast twolanguages and more than 85 million speak three or more languages.

Participants

Prof. A.S.Kolaskar (VC, The Neotia University), Mrs.Rajya Lakshmi Manda (The Neotia University), Prof. Bikas K Chakrabarti (SINP), Sayantari Ghosh (Rammohan College), BhaswarGhosh ( ), Debayan Majumder (BI), Shreya Barui (BI), Prof. Krishna Bhattacharya (CU), Prof. Somdatta Sinha (IISER), Prof. Swati Sen Mandi (BI), Prof. Sujata Tarafder (JU), Prof. Parongoma Sen (CU), Prof. Anirban Kundu (CU), Kalyan K Mandi (Scottish Church College), Suruchi Lata (BI), Arijita Subuddhi (BI), Mr.Himansu Kr. Kundu ( Geological Survey of India), Indrani Bose (BI), Prof. Manikuntala Kundu (BI), Prof. Joyoti Basu (BI), Prof. Achintya Sinha (BI), Satarupa Datta majumder (Asiatic Society), Prof. Parul Chakrabarti (JCBSHM, Sir J C Bose Trust)
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Second Program
June 23, 2017
"Integrative Biology: Models and Experiments"

Speakers:

Reprogramming Living Cells With An Engineering Language
Sangram Bagh
Biophysics and Structural Genomics Division
Saha Institute of Nuclear Physics, Kolkata

Abstract: The molecular connectivity between genes and proteins inside a cell shows a good degree of resemblance with complex electrical circuits. This inspires the possibility of engineering a cell similar to an engineering device. Synthetic biology is an emerging field of bioengineering, where scientists use electrical and computer engineering principles to re-program cellular functions with a potential to solve next generation challenges in medicine, energy, and space travel. In this talk, we discuss our synthetic biology efforts to build a technology platform for cellular computation and robotics and systems biology effort to understand the effect of zero gravity on human and bacterial cells during space travel.

Modeling mitosis in mammalian and yeast cells
Dr. Raja Paul
Indian Association for the Cultivation of Science, Kolkata

Abstract: Accurate chromosome segregation during mitosis is critical to maintain genome stability and prevent erroneous cell division. To this aim, assembly of the mitotic spindle using a set of highly dynamic bio-polymers, known as microtubules (MT)must be coordinated with establishment of chromosomal attachment with the spindle via a specific structure on the chromosome called kinetochore (KT). The MTs of a correctly configured (bipolar) mitotic spindle must interact with the chromosomes (KTs) so that the two sister chromatids interact with opposite spindle poles.This configuration will allow the sister chromatids to be pulledto opposite ends of the cell upon chromosomal separation, thusleading to the formation of two daughter cells with the correct chromosomenumber. While mammalian cells divide via open mitosis (nuclear envelop breaks down), chromosome segregation in budding yeast cells occur within the nucleus known as closed mitosis. In closed mitosis, the entire nucleus migrates to a specific location within the cell before segregation. I will discuss the computer modeling of kinetochore microtubule interactionthat correctly predicts experimentally-observed spindle assembly times with minimum error rates in both mammalian and yeast cells. I will further discuss the nuclear migration, spindle positioning in budding yeast. The model can be used to elaborate other features of the mitotic spindle including chromosomal oscillation and various spindle phenotypes.

Participants

Prof. Bikas Chakrabarty (SINP), Prof Rahul Banerjee (SINP), Prof. Bhaswar Ghosh (IMSC), Prof. Indrani Bose (BI), Mrs.Sanjukta Ghosh (), Dr.Zhumur Ghosh (BI), Prof Joyoti Basu (BI), Sayak Mukhopadhyay, Ph.DStudent (SINP), Saptarshi Chatterjee, Ph.D Student (IACS), Apurba Sarkar, Ph.D Student (IACS), Subhendu Som, Ph.D Student (IACS), Kathakali Sarkar, Ph.D Student (SINP), Rajkamal Srivastava, Ph.D Student (SINP), Deepro Banerjee, Ph.D Student (SINP), Srijanee Das, MS Student (St. Xaviers College), Prof. Atri Mukhopadhyay (SINP), Prof. Sakuntala Chatterjee (S N Bose Centre), Prof. Parul Chakrabarti ( Ex – BI, Sir J C Bose Trust), Prof. ParthaPratimMajumder (ISI).
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First Programme
May 18, 2017
"Classical and Quantum Computation and Information"

Speakers

Participants

Sudeshna Banerjee (The Telegraph), Mandira Mitra (Integral CUP), Dr. A K Roy( IIT), Prof.G P Das(IACS), Prof. Indrani Bose (BI), Prof. Tapati Dutta (St. Xaviers College), Prof. Subinay Dasgupta (CU), Prof. Sujata Tarafdar (JU), Ms. Madhurima Sengupta (The Statesman), Prof. Banasri Basu (ISI), Mrs.Sanjukta Kundu, Prof. Samir Nath Mallik (SINP), Prof. Susmita Sarkar (CU), Prof. Parongama Sen (CU), Prof. Achintya Sinha(BI), Prof. Barun K Chatterjee (BI), Prof. Debasis Sarkar (CU), Prof. Parul Chakrabarti, Prof. Joyoti Basu (BI), Prof. Manikuntala Kundu (BI), Prof. Anirban Kundu (CU), Prof. Susmita Sarkar (CU)
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