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Violent attacks against Jews worldwide spiked 13% in 2018

The U.S. saw highest number of cases – over 100 – of severe violence against Jews in the world, annual Tel Aviv University Kantor Center study reports

Thirteen Jews were murdered in the world in 2018, and the number of other major violent anti-Semitic attacks, including assault, vandalism and arson, spiked 13% from 342 to 387 incidents worldwide. The U.S. registered the highest number of violent attacks on Jews – over 100 cases – followed by the U.K. at 68 incidents and France and Germany, both of which respectively saw 35 violent attacks on Jews in 2018, according to the annual report by Tel Aviv University’s Kantor Center for the Study of Contemporary European Jewry, published on Wednesday, May 1st.

The report did not include figures from the recent attack near San Diego on the Chabad of Poway Synagogue, in which one woman was killed and three others wounded.

A state of emergency

“There is a growing sense that Jewish people in many countries are living in a state of emergency,” Prof. Dina Porat, Head of the Kantor Center and Chief Historian of Yad Vashem told reporters at a press conference held at Tel Aviv University on Wednesday. “Physical insecurity and the questioning of their place in society and in the parties that were once their political home are more prevalent than ever.”

“Anti-Semitism peaked recently in a manner that casts doubt on the very existence of Jews in many parts of the world,” Dr. Moshe Kantor, President of the Jewish European Congress, was quoted as saying in a press release. “As we have seen following the second mass shooting incident at a U.S. synagogue, many parts of the world are no longer safe for Jews as we though they were in the past.”

The Kantor Center’s annual report, a global overview of anti-Semitic incidents, is based on surveys conducted by recognized watchdogs from dozens of countries, including nearly all European Union member states.

The normalization of antisemitism

According to the report, “The year 2018 and the beginning of 2019 witnessed an increase in almost all forms of anti-Semitic manifestations, in the public sphere as well as the private one. Thirteen Jews were murdered during 2018, the largest number compared to previous years. Anti-Semitism is no longer a part of the activities of the triangle made of the far right, the extreme left and radical Islam. It has mainstreamed, and become a constant reality.”

The report comes a day after the Anti-Defamation League published its own report, which found that violent attacks against Jews in the U.S. doubled last year. The New York-based group counted 1,879 anti-Semitic incidents — harassment, vandalism or physical assault — in 2018. That is a 5% decrease from the 1,986 incidents reported in 2017, but the third-highest total since ADL began tracking the data in the 1970s.

“People in Europe, in France especially, are on the frontlines, they are dealing with anti-Semitism,” Prof. Porat said. “But we have to address anti-Semitism in the context of broader racism in the world. We are not alone. Other minorities are suffering. We should suggest a coalition, an umbrella organization to work together in this fight, extending a hand to other groups who are suffering, like the Roma.”

“We cannot fight anti-Semitism as if it is just a Jewish problem,” concluded Adv. Ariel Zuckerman, Chairman of the Kantor Center Board. “Anti-Semitism is always a moral barometer for the state of the world, for the broader context of widespread racism, and we are sounding a siren.” 

Discovery of a binary star orbited by three planets

Discovery by a team of researchers, including Prof. Tsevi Mazeh from the School of Physics and Astronomy

Astronomers have discovered a third planet in the Kepler-47 system, turning the system’s to be one of the most interesting known binary stars.

Using data from NASA’s Kepler space telescope, a team of researchers, including Prof. Tsevi Mazeh from TAU, detected a new Neptune-to-Saturn-size planet orbiting between two previously known planets. The system is now known to include two suns in a very close orbit, circled by three planets. This is the only known double star with more than one circumbinary planet known.

Further information >

Image credit: NASA

Over 400 People Attend Launch of “Astronomy on Tap”

The School of Physics and Astronomy inaugurated a new public outreach activity – short astronomy-related presentations at a bar.

The first event was held at the Kanta Bar in Tel Aviv on Tuesday, April 2, 2019. PhD student Meir Zeilig-Hess spoke about his research on supermassive black holes in the centers of galaxies, and Master’s student Natalie Lubelchick talked about her research in deciphering the explosions of stars. New faculty member, Dr. Iair Arcavi, and PhD student Dalya Baron hosted the event and reviewed the month’s “astronomy in the news”. Astronomical prizes were given to attendees who sent questions to the speakers during the event.

Astronomy on Tap is expected to take place roughly once a month in the same format. The events are free and open to the public. Updates will be provided through the Astronomy on Tap mailing list and Facebook page (in Hebrew). Links to photos and videos of each event will be posted to the website. For further information, please contact the organizer of the event, Dr. Iair Arcavi.

Photo: From left: Dr. Iair Arcavi, Dalya Baron, Natalie Lubelchick, Meir Zeilig-Hess. Photo: Ofir Hochberg

27 TAU alumni in the 21st Knesset

TAU Alumni are the most influential in Israel!

27 TAU alumni, from the right-wing and left-wing parties, were elected yesterday as MK’s in the twenty-first Knesset of the State of Israel:

 

  • Avi Dichter (Likud), alum of the Coller school of Management
  • Avi Nissenkorn (Blue & White), alum of the Faculty of Law
  • Assaf Zamir (Blue & White), alum of the Faculty of Law
  • Lt Gen Benny Gantz, head of the Blue & White Party, alum of the School of History
  • Boaz Toporovsky (Blue & White), alum of the Faculty of Law and the School of Economics
  • David Bitan (Likud), alum of the Faculty of Law
  • Eitan Ginzburg (Blue & White), alum of the Harold Hartog School of Government and Policy
  • Elazar Stern (Blue & White), alum of the Coller school of Management
  • Eli Avidar (Yisrael Beiteinu), alum of the TAU Faculty of Humanities
  • Eli Cohen (Kulanu), alum of the Coller school of Management
  • Lt Gen Gabi Ashkenazi (Blue & White), alum of the Harold Hartog School of Government and Policy and the Faculty of Social Sciences
  • Gideon Sa’ar (Likud), alum of the Faculty of Law, the Harold Hartog School of Government and Policy and the Faculty of Social Sciences
  • Gilad Erdan (Likud), alum of the Harold Hartog School of Government and Policy
  • Idan Roll (Blue & White), alum of the Faculty of Law
  • Michal Rozin (Meretz), alumna of the Harold Hartog School of Government and Policy and the Women and Gender Studies Program
  • Miki Haimovich (Blue & White), alumna of the School of Cultural Studies and the Harold Hartog School of Government and Policy
  • Oded Forer (Yisrael Beiteinu), alum of the Harold Hartog School of Government and Policy
  • Ofer Shelah (Blue & White), alum of the Faculty of Humanities and the School of Economics
  • Pnina Tamano-Shata (Blue & White), alumna of the Department of Public Policy at the Faculty of Social Sciences
  • Maj. Gen. Tal Russo (HaAvoda), alum of the Coller school of Management
  • Tamar Zandberg, Chairman Meretz, alumna of the Faculty of Law
  • Yael German (Blue & White), alumna of the School of History
  • Yoav Segalovich (Blue & White), alum of the Faculty of Law
  • Yoaz Hendel (Blue & White), alum of the School of Jewish Studies & Archeology
  • Yorai Lahav Hertzanu (Blue & White), alum of the Department of Public Policy at the Faculty of Social Sciences
  • Dr. Yuval Steinitz (Likud), alum of the Faculty of Humanities
  • Zvi Hauser (Blue & White), alum of the Faculty of Law

 

The TAU Alumni Organization congratulates and takes pride in each and every one of you!

TAU Scientists Print First 3D Heart Using Patient’s Own Cells and Materials

Engineered heart completely matches the immunological, cellular, biochemical and anatomical properties of the patient

In a major medical breakthrough, Tel Aviv University researchers have “printed” the world’s first 3D vascularised engineered heart using a patient’s own cells and biological materials. Their findings were published on April 15 in a study in Advanced Science.

Until now, scientists in regenerative medicine — a field positioned at the crossroads of biology and technology — have been successful in printing only simple tissues without blood vessels.

“This is the first time anyone anywhere has successfully engineered and printed an entire heart replete with cells, blood vessels, ventricles and chambers,” says Prof. Tal Dvir of TAU’s School of Molecular Cell Biology and Biotechnology, Department of Materials Science and Engineering, Center for Nanoscience and Nanotechnology and Sagol Center for Regenerative Biotechnology, who led the research for the study.

Heart disease is the leading cause of death among both men and women in the United States. Heart transplantation is currently the only treatment available to patients with end-stage heart failure. Given the dire shortage of heart donors, the need to develop new approaches to regenerate the diseased heart is urgent.

“This heart is made from human cells and patient-specific biological materials. In our process these materials serve as the bioinks, substances made of sugars and proteins that can be used for 3D printing of complex tissue models,” Prof. Dvir says. “People have managed to 3D-print the structure of a heart in the past, but not with cells or with blood vessels. Our results demonstrate the potential of our approach for engineering personalized tissue and organ replacement in the future.”

Research for the study was conducted jointly by Prof. Dvir, Dr. Assaf Shapira of TAU’s Faculty of Life Sciences and Nadav Moor, a doctoral student in Prof. Dvir’s lab.

 

​”At this stage, our 3D heart is small, the size of a rabbit’s heart,” explains Prof. Dvir. “But larger human hearts require the same technology.”

The secret to a new heart

For the research, a biopsy of fatty tissue was taken from patients. The cellular and a-cellular materials of the tissue were then separated. While the cells were reprogrammed to become pluripotent stem cells, the extracellular matrix (ECM), a three-dimensional network of extracellular macromolecules such as collagen and glycoproteins, were processed into a personalized hydrogel that served as the printing “ink.”

After being mixed with the hydrogel, the cells were efficiently differentiated to cardiac or endothelial cells to create patient-specific, immune-compatible cardiac patches with blood vessels and, subsequently, an entire heart.

According to Prof. Dvir, the use of “native” patient-specific materials is crucial to successfully engineering tissues and organs.

“The biocompatibility of engineered materials is crucial to eliminating the risk of implant rejection, which jeopardizes the success of such treatments,” Prof. Dvir says. “Ideally, the biomaterial should possess the same biochemical, mechanical and topographical properties of the patient’s own tissues. Here, we can report a simple approach to 3D-printed thick, vascularized and perfusable cardiac tissues that completely match the immunological, cellular, biochemical and anatomical properties of the patient.”

What organ would you like?

The researchers are now planning on culturing the printed hearts in the lab and “teaching them to behave” like hearts, Prof. Dvir says. They then plan to transplant the 3D-printed heart in animal models.

“We need to develop the printed heart further,” he concludes. “The cells need to form a pumping ability; they can currently contract, but we need them to work together. Our hope is that we will succeed and prove our method’s efficacy and usefulness.

 

“Maybe, in ten years, there will be organ printers in the finest hospitals around the world, and these procedures will be conducted routinely.”

Better maps for better self-driving cars?

New research on object detection breaks with long-held principles of radar technologies

Radar technologies were originally designed to identify and track airborne military targets. Today they’re more often used to detect motor vehicles, weather formations and geological terrain.

Until now, scientists have believed that radar accuracy and resolution are related to the range of frequencies or radio bandwidth used by the devices. But a new Tel Aviv University study finds that an approach inspired by optical coherence tomography (OCT) requires little to no bandwidth to accurately create a high-resolution map of a radar’s surrounding environment.

“We’ve demonstrated a different type of ranging system that possesses superior range resolution and is almost completely free of bandwidth limitations,” says Prof. Pavel Ginzburg of TAU’s School of Electrical Engineering, one of the principal authors of the study. “The new technology has numerous applications, especially with respect to the automotive industry. It’s worth noting that existing facilities support our new approach, which means that it can be launched almost immediately.”

The new study was conducted jointly by Prof. Ginzburg, Vitali Kozlov, Rony Komissarov and Dmitry Filonov, all of TAU’s School of Electrical Engineering. 

Preventing the traffic jams of the future

It was commonly believed that radar resolution was proportional to the bandwidth used. Meaning, a good, accurate radar, required a lot of bandwidth, something that could become a limited resource in the future.

“Our concept offers solutions in situations that require high-range resolution and accuracy but in which the available bandwidth is limited, such as the self-driving car industry, optical imaging and astronomy,” Kozlov explains. “Not many cars on the road today use radars, so there’s almost no competition for allocated frequencies. But what will happen in the future, when every car will be equipped with a radar and every radar will demand the entire bandwidth?

“We’ll find ourselves in a sort of radio traffic jam. Our solutions permit drivers to share the available bandwidth without any conflict,” Kozlov says.

The TAU researchers have now demonstrated that low-bandwidth radars can achieve similar performance at a lower cost and without broadband signals by exploiting the coherence property of electromagnetic waves. The new “partially coherent” radar, which uses significantly less bandwidth, is as effective as a standard “coherent” radars in experimental situations.

Using radar for rescue

“Our demonstration is just the first step in a series of new approaches to radiofrequency detectors that explore the impact of low-bandwidth radars on traditional fields,” Prof. Ginzburg concludes. “We intend to apply this technology to previously unexplored areas, like rescue operations — sensing if an individual is buried in a collapsed building — or street mapping — sensing if a child is about to cross the street behind a bus that conceals him.”

Research for the study was supported by an ERC grant and Kamin, and it was conducted at TAU’s Radio Physics Laboratory’s anechoic chamber.

New genetically encoded sensor isolates hidden Leukemic cells

Cells express surface markers that help them escape most targeted therapies, Tel Aviv University researchers say

Understanding how leukemic stem cells are regulated has become an important area of cancer research. All stem cells can multiply, proliferate and differentiate. Because of these qualities, leukemic stem cells are the most malignant of all leukemic cells. 

A team of Tel Aviv University researchers have now devised a novel biosensor that can isolate and target leukemic stem cells. The research team, led by Dr. Michael Milyavsky of the Department of Pathology at TAU’s Sackler School of Medicine, discuss their unique genetically encoded sensor and its ability to identify, isolate and characterize leukemic stem cells in a study published on January 31 in Leukemia.

Raising the survival rate for blood cancers

“The major reason for the dismal survival rate in blood cancers is the inherent resistance of leukemic stem cells to therapy,” Dr. Milyavsky says. “But only a minor fraction of leukemic cells have high regenerative potential, and it is this regeneration that results in disease relapse. A lack of tools to specifically isolate leukemic stem cells has precluded the comprehensive study and specific targeting of these stem cells until now.”

Until recently, cancer researchers used markers on the surface of the cell to distinguish leukemic stem cells from the bulk of cancer cells, with only limited success. “There are hidden cancer stem cells that express differentiated surface markers despite their stem cell function. This permits those cells to escape targeted therapies,” Dr. Milyavsky explains. “By labeling leukemia cells on the basis of their stem character alone, our sensor manages to overcome surface marker-based issues.

“We believe that our biosensor can provide a prototype for precision oncology efforts to target patient-specific leukemic stem cells to fight this deadly disease.”

Personalized medical testing

The scientists searched genomic databases for “enhancers,” the specific regulatory regions of the genome that are particularly active in stem cells. Then they harnessed genome engineering to develop a sensor composed of a stem cell active enhancer fused with a fluorescence gene that labels the cells in which the enhancer is active.

The scientists were also able to demonstrate that sensor-positive leukemia stem cells are sensitive to a known and inexpensive cancer drug called 4-HPR (fenretinide), providing a novel biomarker for patients who can potentially benefit from this drug.

“Using this sensor, we can perform personalized medicine oriented to drug screens by barcoding a patient’s own leukemia cells to find the best combination of drugs that will be able to target both leukemia in bulk as well as leukemia stem cells inside it,” Dr. Milyavsky concludes. “We’re also interested in developing killer genes that will eradicate specific leukemia stem cells in which our sensor is active.”

The researchers are now investigating those genes that are active in leukemic stem cells in the hope finding druggable targets.

When Harry met Zahava

TAU expert on post-military combat trauma, Prof. Zahava Solomon, speaks at the Veterans’ Mental Health Conference in London

TAU’s Prof. Zahava Solomon discussed issues relating to the long term trauma of military combatants with HRM Prince Harry, the Duke of Sussex, at the 2019 Veterans’ Mental Health Conference held at King’s College London. Prof. Solomon was one of a select number of international experts on trauma who presented at the conference. The participants’ goal was to share ideas about how best to support the psychological wellbeing of former military personnel.

The Duke, who served two tours in Afghanistan, discussed the long-term effects of military service with several speakers, praising their work. He is a regular champion of mental health advocacy through his work with the Royal Foundation’s ‘Heads Together’ project, which aims to promote a national conversation on the topic.

Solomon spoke with Prince Harry about the findings of her study that she presented and mainly about the psychological effects of participating in combat – not only on the mental health of the combatants themselves but also on their families. The Prince expressed great interest and concern for the safety of soldiers.

Prof. Zahava Solomon​

“I expressed my appreciation and admiration in the name of mental health professionals inIsrael for his involvement and sensitivity, both because of his social standing and also because of his past as a combatant,” said Solomon, an Israel Prize laureate and a retired Lieutenant-Colonel in the Israel Defense Forces. “He said he could relate to the challenges based on his own experience. For someone in his position to come forward and say it’s quite normal to be traumatized, is really beneficial.”​

​In an interview with Forces TV, Solomon said: “For many veterans, the war starts when the shooting stops. Even 20 years after the war, we have actually observed the trauma – both psychological and physical – being suffered by the traumatized combatants. And on top of that, there are individuals who did not initially succumb to stress on the battlefield, but later on, over a period of 20 years, have actually developed late onset post-traumatic stress disorder.”

Prof. Solomon heads the I-CORE Research Center for Mass Trauma at Tel Aviv University. Formerly, she held roles as Head of Research in Mental Health in the IDF Medical Corps, Head of TAU’s Bob Shapell School of Social Work, and Head of TAU’s Adler Research Center for Child Welfare and Protection. She has published over 400 academic articles and seven books. Her studies of trauma among combat veterans, prisoners of war and Holocaust survivors spans over four decades and are unparalleled in scope, depth and breath. Her work helps shape the psychosocial treatment and rehabilitation of traumatized soldiers and their families.

Featured image: Prince Harry, the Duke of Sussex discusses post-military combat trauma. Credit: Daniel Leightley/Dan Dyball

A unique collaboration for Blockchain Applications at the Coller School of Management

This is a special opportunity for researchers at the Coller School of Management and Tel Aviv University to carry out blockchain and crypto currency research in cooperation with international industry.

The blockchain technology enables secure business activity on the internet and commercial undertakings between various parties, without the necessity for a central managerial entity – this managerial function being replaced by encrypted blocks of information.  A few months ago the Coller School of Management at Tel Aviv University established the first venture of this kind in Israel – the Hogeg Institute for Blockchain Applications, with the aim of advancing research, teaching and distribution of information in the area of blockchain technology.

As part of the activities of the Institute, a unique collaboration was created when the the Hogeg Institute for Blockchain Applications signed an agreement with the Frankfurt School Blockchain Center to support academic research in the area of blockchain technology and crypto currencies.  The project is being financed by Accelerator Frankfurt GmbH, which leads the Fintech/Blockchain area in Germany and focuses its activities on introducing the digital B2B technologies into the financial sector, in cooperation with Santiment Deutschland, a well-known success story in the area of crypto currencies that provides access to a unique platform for storing data and enables its use for academic research.

Dr Jacob Mendel, Managing Director of the Hogeg Institute for Blockchain Applications explains:  “This is a groundbreaking venture in academic cooperation to advance blockchain research focusing on providing economic and business solutions that will contribute to activity on the cutting edge of international research in which a number of institutions at leading universities throughout the world such as Stanford and Columbia participate.”

Maria Pennanen, CEO of Santiment Deutschland, adds:  “We want to get students and researchers together to analyze and understand the crypto currency market data.  As a first stage, the cooperation will focus on academic work.  We will hold the first academic event in the crypto area, under the title ‘Academia Meets the Market Players’, where we will present our initial findings.”

Ram Shoham, founder of Accelerator Frankfurt:  “It is an honor for us to start this cooperation with the Hogeg Institute for Blockchain Applications.  We believe in caring for the global blockchain eco-system through cooperative ventures and partnerships.”

Prof. Dan Amiram, Associate Dean of the Coller School of Management at Tel Aviv University and Head of the Hogeg Institute for Blockchain Applications:  “This is a special opportunity for researchers from Tel Aviv University to carry out projects in cooperation with international industry that contends with new challenges and applies the technology in a range of areas of activity.”

Our very best wishes go to the students and researchers at Tel Aviv University and the Coller School of Management who are participating in this special research project in the blockchain and crypto-currency area in cooperation with international industry.

What’s in a pi?

March 14h is International Pi Day. Why do we celebrate it? Is pi still relevant 4,000 years after being discovered? And is peach pie better than cherry?

What’s the best kind of pie? And what’s the perfect crust-to-filling ratio? Mankind has been struggling with these questions since the dawn of baked goods, which is probably about as long as the number pi has been known to us.

Although Pi Day was first celebrated in the 1980s, the number pi (represented as the Greek letter π) was first discovered about 4,000 years ago. The ratio of a circle’s circumference to the circle’s diameter, pi is always the same, whether you’re measuring a penny or a truck tire. Not only that, but pi is an “irrational” number – no matter how many digits of pi we calculate, we’ll never be able to predict which digit comes next. 

We decided to ask Ofir Gorodetsy, a PhD student at the School of Mathematical Sciences at Tel Aviv University, about the significance of pi.

“The decimal expansion of π starts with 3.14,” Ofir said. “Which is why we celebrate Pi Day on March 14th every year. And aside from being known to Ancient Egyptians and Babylonians, pi is also mentioned in the Hebrew Bible, where the approximation 3 is used to measure the circumference of a circle.”

Too much pi?

Although most people are familiar with pi as being 3.14, mathematicians have been struggling to find the other digits of pi for centuries. According to Ofir, “figuring out the digits of pi gets pretty difficult after a dozen or so. Many scholars from all over the world have tried to find more and more digits: Archimedes, Liu Hui, Brahmagupta, Fibonacci, Isaac Newton. In the 18th century a mathematician even came up with proof that the digits of pi don’t follow any pattern, so they never repeat in any predictable way.”

According to Ofir, figuring out the digits of pi is much easier these days. Even freshmen at university can calculate as many digits as they’d like, using modern tools.

But the magic of pi is not only its length, but how common it is in the natural world. The disk of the sun, the pupil of our eyes, the ripples in a pond, even the way rivers tend to bend and flow can be described using pi. It’s used in the work of biologists, engineers, geographers, physicsts, mathematicians. Almost every discipline that deals with the world around us crosses paths with this unique number at some point. 

So why do we celebrate Pi Day? Probably because math is at its most delicious when it’s fresh out of the oven.

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