Biophysics and Interdisciplinary

Bio-Physics Seminar:"Biomedical Spectroscopic Imaging with Scattered Light"

Location: 
Danciger B building, Seminar room
Wed, 25/12/2019 - 10:00 to 11:30

Lecturer: Prof. L. Perelman (Harvard)
Abstract:
Optical spectroscopy emerged as a valuable tool to study live biological tissue at various scales and
detect early disease in the human body. While fluorescence and Raman spectra are sensitive to
molecular properties of tissue, light scattering spectra, originating from the extracellular matrix,
subcellular structures, and other tissue inhomogeneities, carry information about tissue microscopic and
macroscopic organization. In this talk we will discuss how scattered light can be used for noninvasive

Biophysics Seminar: "Cell Circuits for tissue homeostasis and fibrosis"

Location: 
Danciger B building, Seminar room
Thu, 16/05/2019 - 14:00 to 15:30

Lecturer: Miri Lavi, Weizmann Institute


Abstract:

Tissue processes involve communication between several cell types by means of diverse secreted factors and cell contact signals. This communication allows tissues to maintain homeostasis of cell-type ratios and to respond properly to perturbations such as injury and inflammation. In my talk, I will discuss principles of cell circuits in homeostasis and away from homeostasis as in tissue repair.

Biophysics Seminar: "Directionality and spatial expansion"

Location: 
Danciger B building, Seminar room
Thu, 11/04/2019 - 14:00 to 15:30

Lecturer: Guy Bunin


Abstract:

The dynamics of some systems are directional, meaning that the state of a system can be characterized by a function that increases in time. This includes, for example, the growth of entropy in physical systems, or the growth of fitness in certain formulations of Darwinian evolution. Yet even when directionality holds, it might be sensitive to perturbations, such as external driving of physical systems, or interactions in evolutionary dynamics.

Biological Physics Seminar: "Intrinsic limits to gene regulation by global crosstalk"

Location: 
Danciger B building, Seminar room
Thu, 19/01/2017 - 14:00 to 15:30

Lecturer: Dr. Tamar Friedlander
Affiliation: Institute of Science and Technology,
Austria
Abstract:
Gene activity is mediated by the
specificity of binding interactions between
special proteins, called transcription
factors, and short regulatory sequences on
the DNA, where different protein species
preferentially bind different DNA targets.
Limited interaction specificity may lead to
crosstalk: a regulatory state in which a
gene is either incorrectly activated due to
spurious interactions or remains

"Biological Physics Seminar: Microfluidics for the study of Biological Systems"

Location: 
Danciger B building, Seminar room
Wed, 16/12/2015 - 12:00 to 13:30

Lecturer: Dr. Assaf Rotem
Affiliation: Harvard University
Abstract:
Biological populations consist of variants
whose unique genes or functions affect the
fate of the system in many important
processes including evolution and
organismal development. Understanding
and ultimately exploiting this diversity
represents one of the grand challenges of
biology: It requires identification of the key
cells that drive these phenomena and the
specific genes or functions that control their

Biological and Interdisciplinary Physics Seminar: "Emergence of Brownian Motor with Possible Break of Chiral Symmetry"

Location: 
Danciger B building, Seminar room
Thu, 25/02/2016 - 14:00 to 15:30

Lecturer: Dr. Alexander Feigel
Affiliation: Racah Institute of Physics,
The Hebrew University of Jerusalem
Abstract:
Molecular motors harvest chemical energy,
convert part of this energy to useful work and
dissipate the rest. Molecular motor, therefore, is
an example of a physical system that operates
at steady state out of thermal equilibrium while
being coupled to two thermal bathes at different
temperatures. The systems of this type, e.g.
human created engines, tend to disintegrate with

"Biological Physics Seminar: Blebbing during cancer migration: From inter-cellular to intra-cellular dynamics"

Location: 
Danciger B building, Seminar room
Tue, 30/12/2014 - 14:00 to 15:30

Lecturer: Dr. Inbal Hecht
Affiliation: School of Physics and Astronomy
Tel Aviv University
Abstract:
Migrating cancer cells exhibit various motility
modes, which differ in cell shape dynamics as
well as cell-environment and cell-cell
interactions. Cellular blebbing is involved in
amoeboid motility, an important motility mode
which is in the focus of current research. Blebs
are large, unstable membrane structures that
are driven by hydrostatic pressure and occur
when the cell cortex is ruptured or disconnects