1981-1985 Doctor of Medicine, University of Maryland School of Medicine.
1977-1981 Bachelor of Arts, Natural Sciences, The John Hopkins University, Honors.
1992-1993 Craniomaxillofacial fellowship. University of Pittsburgh Plastic, Reconstructive and Craniomaxillofacial, Surgery.
1989-1992 Plastic and Recontstructive Surgery, Eastern Virginia Graduate School of Medicine, Norfolk, VA. 2350.
Consultant Pediatric Plastic & Craniomaxillofacial Surgeon, "Mitera" & "Lito" Maternity Hospitals, Athens, Greece.
Chief, Pediatric Plastic & Craniomaxillofacial Surgery "IASO" Pediatric Hospital, Athens, Greece.
Consultant Pediatric Plastic & Craniomaxillofacial Surgeon at "IASO" Maternity Hospital, Athens , Greece.
Graduated from Johns Hopkins with honors.
Received from the University of Maryland for research done at The National Institutes of Health.
Lazarou, S.A., "Profound Effect of Prenatal Diagnosis in the Quality of Life and Care of Clefts", Donald School Journal of Ultrasound in Obstetrics & Gynecology, V-10, N-04, Oct-Dec, 2016.
Lazarou, S.A. Gegkes, I. Kontothimos, G. Primary Alveolar Cleft Repair with Calcium Bone Substitutes. Journal of Craniofacial Surgery. 4/11.
Lazarou, S.A. Strongilos, H. Kazanas, S. Surgery of the Skull Base . Medical Chronicles Journal 2000.
Lazarou, S.A. Surgical Approaches to the Orbit. Chapter 9 in Operative Scull Base, Litsas Press , Athens,1997.
Losken, H.W., Patterson, G.T., Lazarou, .S.A. Whitney, T., Pre-Operative Planning for Mandibular Distraction. Plastic Surgical Forum, 62:214-216,1993.
Lazarou, S.A., Kaplan.I., Lateral Arm Flap for Elbow Coverage . Plastic and reconstructive Surgery. 91:7:1349-1354. 1993.
Lazarou, S.A., Defining A Christian Doctor. Journal Of Biblical Ethics In Medicine. 6:4:81-90, 1992.
Lazarou, S.A., Inhabiting A Biblical Framework In Medicine. Journal Of Biblical Ethics In Medicine. 8:1:18-20, 1991.
Barbul, A., Lazarou, S.A., Efron, D.T., Wasserkrug, H.L., Efron, G., Arginine Enhances Wound Healing and Lymphocyte Immune, Rensponses in Humans, Surgery 8:2:331-337 8/90.
Efron, J.E., Frankel, H.L., Lazarou. S.A., Wasserkrug, H.L., Barbul A., Wound Healing and T-Lymphocytes, Journal of Surgical Research 48:460-463 1990.


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posted on 2021-02-24, 15:45 authored by Ramon Bloomberg
T's World: The Overidentification of Terry Thompson, Leipzig, October 2014
The film premiered at DOK Leipzig on 28th October 2014.
In the film, Dr Bloomberg explores the story of Terry Thompson who, in 2011, disactivated the cages of 64 wild animals on his Ohio property, so the animals might escape into the community. Then he shot himself, hoping that the animals would consume him.
Mobilising police reports and interviews, this practice-based research explores the tensions between Thompson's legal rights and the security concerns of the authorities and neighbours. It examines the question of, "how can the 'rule of the game' be understood when the custom permits liberties but the law does not?
To create the 3D images, the idea of a paradoxical "game" was incorporated into the form of the film with the intention of a "performativity in form" that transcends the content of the film and forms part of its analysis and commentary. A game world was created using a platform for video game production. All the characters are artificially intelligent "bots" that inhabit T's World, a digital recreation of Thompson's property and surroundings. These automated "bots" are set loose in the world with only the rudimentary rules of the script to determine their behaviour.
The film gives insight into the political issues of violence, custom and law in the U.S. by showing how Thompson's actions were congruent with some strains in American political thought, and incongruent with others. It demonstrates how, ultimately, an over-identification with custom is not allowed, and law goes into effect.
Screen media
Screen and digital media not elsewhere classified
Experimental Documentary FilmFilm and TelevisionFilm, Television and Digital Media not elsewhere classified

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TIP! Clean the filter of your air conditioning as clean as possible. If the filter gets clogged up, the air conditioning unit will have to work harder to cool your house, using up more energy.
You probably know some people who are experts on home improvement. Wouldn't you like to be one of these people? While this may require an extra commitment, you will get back what you put into it. This article is going to help you with some great tips on home improvement projects.
TIP! Find your true style before you start your customizations to your home. The decorating theme you choose will narrow down your choices in several different areas.
You can realize great savings on your kitchen remodel by simply refinishing existing cabinetry, rather than buying new cabinets. Paint all of the bases and replace the doors and hardware to get a new look. You will modernize your entire kitchen without spending a lot of money.
TIP! Recycle old shoe boxes and turn them into storage. Use fabric or wallpaper to cover the boxes and create an appealing design.
Install weather stripping on the doors and windows to make your house more energy efficient. This fix is very inexpensive, and it goes a long way in helping seal both cold and hot air out of your home. You may also notice that you don't feel as many drafts in your home.
Punch holes in the paint can rim with a nail. The channel that the lid fits into on metal paint cans typically fills up with paint and when you try to replace the lid the pain spills over onto the sides of the can. To solve your problem just get a nail and make sure you drive holes around it to fix the channel.
Ask your family members and friends for help before you start your next project to improve your home. If you wait to ask for help when you have already begun the project, it might be to late for people to commit. This can result in delays to your home improvement project.
TIP! Why settle on traditional tables for your living area when you can create something distinctive and creative? You can use an old chest or old luggage to make a pretty nice storage bin. Place some books, magazines and other odds and ends on top of the coffee table to give it a unique look.
To seal bugs out while reducing your home heating and cooling expenses, use caulk to completely seal cracks, holes or any other openings that you notice. Apply caulk around windows and base boards. Caulking these areas helps to keep cool air and heat from getting out.
TIP! All you need is a little PVC primer and cement in order to attach two PVC pipes together. Don't buy anything else, as it won't work and could cause a leak.
You should always check to see if the company you have hired is legitimate. If they don't have an address and they only call you, they probably don't have the experience that you want. Instead, select someone with a good reputation.
TIP! Using the right type of lighting in any room makes a big difference in how it looks. A bright room appears more inviting and warm to everyone.
If you are in need of a screen for your window, consider making your own. After cutting the frame kit to fit a window size, all that's needed is to simply attach the screen by using an affordable tool and cording. Some windows may require a particular screen, but an external screen can be added to nearly any window with the use of adapters.
It's an excellent idea to visit open houses around town (new subdivisions are best) to gather ideas before you embark on renovations to your own house. You will get a chance to see how the latest trends in colors and styles look inside a home instead of just in a home center. Lots of model homes hire professional decorators to completely furnish them so they are a great place to get good ideas.
TIP! The quality of a great door cannot be underestimated. It will be the very first and very last thing guest will view.
Be sure to use water resistant dry wall in areas that harbor moisture, such as the kitchen and bathroom. Green board resists the growth of mold and mildew, and is better suited to withstand dampness.
TIP! Look around for home improvement ideas and inspiration well in advance of beginning a project. If you continuously hunt for home improvement ideas, you will have a wealth of interesting projects in mind once you are ready to start working.
In sum, you now have lots of great home improvement advice. While you perhaps already knew some of this, it is hoped that you did also learn something new or just freshly remembered something useful. Use this advice to become successful.


Vodafone femtocells inside your house soon ?
What Are The Best Markets For Startups?
Middle Eastern countries have build an immense reputation in the world of business by exporting goods to many countries and Qatar is one such country. Bordering Saudi Arabia, Persian Gulf, UAE and Iran, Qatar is one of the most important Middle Eastern countries despite its small size.
Innovations from various parts of the world we don't usually expect innovation from Arab Lady Technologists - Oman, Qatar Unique ID - India Kinect and Sign Language – China Amazon's Fashion Studio – Brooklyn Airport Advertising - various US airports.
In fact, Qatar, Kuwait, and the United Arab Emirates are amongst the top five cities in the first world (based on the Human Development Index) that have the best business climates. Did you know that the many of the best cities around the world for business is actually in the Middle East?
After a successful debut last year , Crowdsourcing Week will be returning for its second edition.
The nation quickly managed to transition from an emerging market to a developed market, as opposed to Qatar or Taiwan. When it comes down to startups, as well as emerging businesses, they have to make efforts to succeed in getting where they want.
With just 103 rooms and 103 suites it is a fraction of the size of the Marina Bay Sands but its global notoriety made it an appealing opportunity for the Qatar Sovereign Wealth Fund who are said to have paid $275 million for the hotel back in 2010.
A Qatar deployment has been announced , but are we about to see the first UK operator deploying at home ? Vodafone has just put up an unassuming little note on their website touting femtocells are "safe" wireless devices. The big picture is what interests me: " Vodafone is developing femtocells to enhance the connection to our network from inside our customers' homes or small office locations."


A Nexmo virtual number is a telephone number that is not directly associated with a specific phone. It is programmable, enabling you to create custom call and messaging experiences for your users.
Nexmo offers virtual numbers worldwide so that you can use phone numbers that are in the same locale as your customers or prospects. This maximises the chances that your calls are answered and your messages are read and responded to.


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Search results: Found 21
Listing 1 - 10 of 21 << page
Intertwingled: The Work and Influence of Ted Nelson
Authors: Douglas R. Dechow --- Daniele C. Struppa
Book Series: History of Computing ISSN: 21906831 ISBN: 9783319169248 9783319169255 Year: 2015 Pages: 150 DOI: 10.1007/978-3-319-16925-5 Language: English
Subject: Computer Science
This engaging volume celebrates the life and work of Theodor Holm "Ted" Nelson, a pioneer and legendary figure from the history of early computing. Presenting contributions from world-renowned computer scientists and figures from the media industry, the book delves into hypertext, the docuverse, Xanadu and other products of Ted Nelson's unique mind. Features: includes a cartoon and a sequence of poems created in Nelson's honor, reflecting his wide-ranging and interdisciplinary intellect; presents peer histories, providing a sense of the milieu that resulted from Nelson's ideas; contains personal accounts revealing what it is like to collaborate directly with Nelson; describes Nelson's legacy from the perspective of his contemporaries from the computing world; provides a contribution from Ted Nelson himself. With a broad appeal spanning computer scientists, science historians and the general reader, this inspiring collection reveals the continuing influence of the original visionary of the World Wide Web.
history of computing --- data structures --- user interfaces --- human-computer interaction
Autonomous Driving: Technical, Legal and Social Aspects
Authors: Markus Maurer --- J. Christian Gerdes --- Barbara Lenz --- Hermann Winner
ISBN: 9783662488454 9783662488478 Year: 2016 Pages: 706 DOI: 10.1007/978-3-662-48847-8 Language: English
Subject: Transportation
This book takes a look at fully automated, autonomous vehicles and discusses many open questions: How can autonomous vehicles be integrated into the current transportation system with diverse users and human drivers? Where do automated vehicles fall under current legal frameworks? What risks are associated with automation and how will society respond to these risks? How will the marketplace react to automated vehicles and what changes may be necessary for companies?Experts from Germany and the United States define key societal, engineering, and mobility issues related to the automation of vehicles. They discuss the decisions programmers of automated vehicles must make to enable vehicles to perceive their environment, interact with other road users, and choose actions that may have ethical consequences. The authors further identify expectations and concerns that will form the basis for individual and societal acceptance of autonomous driving. While the safety benefits of such vehicles are tremendous, the authors demonstrate that these benefits will only be achieved if vehicles have an appropriate safety concept at the heart of their design. Realizing the potential of automated vehicles to reorganize traffic and transform mobility of people and goods requires similar care in the design of vehicles and networks. By covering all of these topics, the book aims to provide a current, comprehensive, and scientifically sound treatmentof the emerging field of "autonomous driving".
automotive engineering --- human-computer interaction --- user interfaces --- technology
Computation and the Humanities: Towards an Oral History of Digital Humanities
Authors: Julianne Nyhan --- Andrew Flinn
Book Series: Springer Series on Cultural Computing ISSN: 2195-9056 ISBN: 9783319201696 9783319201702 Year: 2016 Pages: 285 DOI: 10.1007/978-3-319-20170-2 Language: English
Subject: Arts in general --- Computer Science
This book addresses the application of computing to cultural heritage and the discipline of Digital Humanities that formed around it. Digital Humanities research is transforming how the Human record can be transmitted, shaped, understood, questioned and imagined and it has been ongoing for more than 70 years. However, we have no comprehensive histories of its research trajectory or its disciplinary development. The authors make a first contribution towards remedying this by uncovering, documenting, and analysing a number of the social, intellectual and creative processes that helped to shape this research from the 1950s until the present day.By taking an oral history approach, this book explores questions like, among others, researchers' earliest memories of encountering computers and the factors that subsequently prompted them to use the computer in Humanities research.Computation and the Humanities will be an essential read for cultural and computing historians, digital humanists and those interested in developments like the digitisation of cultural heritage and artefacts.
user interfaces --- human computer interaction --- computers and society
Symbiotic Interaction: 5th International Workshop, Symbiotic 2016, Padua, Italy, September 29–30, 2016, Revised Selected Papers
Authors: Luciano Gamberini --- Anna Spagnolli --- Giulio Jacucci --- Benjamin Blankertz --- et al. Jonathan Freeman
Book Series: Information Systems and Applications, incl. Internet/Web, and HCI ISSN: 1611-3349 ISBN: 9783319577524 9783319577531 Year: 2017 Pages: 182 DOI: 10.1007/978-3-319-57753-1 Language: English
This book constitutes the proceedings of the 5th International Workshop on Symbiotic Interaction, Symbiotic 2016, held in Padua, Italy, in October 2016.The 12 full papers and 3 short papers presented in this volume were carefully reviewed and selected from 23 submissions. The idea of symbiotic systems put forward in this workshop capitalizes on the computers' ability to implicitly detect the users goals, preferences or/and psycho-physiological states and thereby enhancing human-computer interaction (HCI). The papers present an overview of the symbiotic relationships between humans and computers with emphasis on user-driven research on symbiotic systems, adaptive systems, implicit input data, physiological computing and BCI, but also on understanding the nature of the interdependence and agency between computers and humans more broadly.
human-computer interaction --- machine learning --- cyber-physical systems
Cognitive Supervision for Robot-Assisted Minimally Invasive Laser Surgery
Author: Loris Fichera
Book Series: Springer Theses ISSN: 2190-5053 ISBN: 9783319303291 9783319303307 Year: 2016 Pages: 99 DOI: 10.1007/978-3-319-30330-7 Language: English
Subject: Medical technology
This thesis lays the groundwork for the automatic supervision of the laser incision process, which aims to complement surgeons' perception of the state of tissues and enhance their control over laser incisions. The research problem is formulated as the estimation of variables that are representative of the state of tissues during laser cutting. Prior research in this area leveraged numerical computation methods that bear a high computational cost and are not straightforward to use in a surgical setting. This book proposes a novel solution to this problem, using models inspired by the ability of experienced surgeons to perform precise and clean laser cutting. It shows that these new models, which were extracted from experimental data using statistical learning techniques, are straightforward to use in a surgical setup, allowing greater precision in laser-based surgical procedures.
Biomedical Engineering, Robotics and Automation, User Interfaces and Human Computer Interaction, Minimally Invasive Surgery
Wearable Electronics and Embedded Computing Systems
Authors: Enzo Pasquale Scilingo --- Gaetano Valenza
ISBN: 9783038423874 9783038423867 Year: 2017 Pages: XII, 242 Language: English
Subject: Biology --- Internal medicine --- Mathematics
Wearable electronics and embedded computing systems have been receiving a great deal of interest over the last two decades in research and commercial fields, with a special focus on biomedical applications. The key benefits introduced by these systems include their small size, lightweight, low-power consumption, and, of course, wearability. Major human-centered applications are related to medicine, enabling outpatient care and enhancing the quality of life for chronic disease patients, maybe preventing unnecessary hospitalization. These technological devices can indeed be cost effective and provide doctors with more accurate and reliable data.Exemplary engineering input has focused on developing innovative sensing platforms, adaptable to different environments and user needs, smart textile technology, miniaturized electronics and sensors, energy harvesting, wireless body area networks, and so on. This has provided the possibility of gathering information on several activities, such as during daily activities or sleep, during specific tasks, at home, in the lab, and in the clinic, in the form of physiological signals.This book includes cutting-edge research articles, as well as reviews describing and assessing wearable devices, or proposing novel wearable sensors, computational efficient algorithms for physiological signal processing through embedded computing, collection of environmental/behavioral/psychological data, data fusion, detection and quantification of symptoms, decision support for medical doctors, and communication between patient and doctor.
Wearable systems, biomedical signal, signal processing, electronics, physiological data, biomedical sensors, human-computer interaction, haptics, monitoring
Human Computer Confluence. Transforming Human Experience Through Symbiotic Technologies
Authors: Gaggioli, Andrea --- Ferscha, Alois --- Riva, Giuseppe --- Dunne, Stephen --- et al. Viaud-Delmon, Isabelle
ISBN: 9783110471137 9783110471694 Year: 2016 Pages: 330 DOI: 10.1515/9783110471137 Language: English
Subject: Psychology --- Media and communication --- Computer Science
Human-computer confluence refers to an invisible, implicit, embodied or even implanted interaction between humans and system components. New classes of user interfaces are emerging that make use of several sensors and are able to adapt their physical properties to the current situational context of users.A key aspect of human-computer confluence is its potential for transforming human experience in the sense of bending, breaking and blending the barriers between the real, the virtual and the augmented, to allow users to experience their body and their world in new ways. Research on Presence, Embodiment and Brain-Computer Interface is already exploring these boundaries and asking questions such as: Can we seamlessly move between the virtual and the real? Can we assimilate fundamentally new senses through confluence? The aim of this book is to explore the boundaries and intersections of the multidisciplinary field of HCC and discuss its potential applications in different domains, including healthcare, education, training and even arts.
Human Computer Interaction --- Embodied Cognition --- Pervasive Computing --- Social Networking --- Media psychology --- SNSs --- Behavior --- Media Modeling
Authors: Kresimir Delac --- Mislav Grgic
ISBN: 9783902613035 Year: 2007 Pages: 572 DOI: 10.5772/38 Language: English
Publisher: IntechOpen
This book will serve as a handbook for students, researchers and practitioners in the area of automatic (computer) face recognition and inspire some future research ideas by identifying potential research directions. The book consists of 28 chapters, each focusing on a certain aspect of the problem. Within every chapter the reader will be given an overview of background information on the subject at hand and in many cases a description of the authors' original proposed solution. The chapters in this book are sorted alphabetically, according to the first author's surname. They should give the reader a general idea where the current research efforts are heading, both within the face recognition area itself and in interdisciplinary approaches.
Physical Sciences, Engineering and Technology --- Computer and Information Science --- Human-Computer Interaction --- Security System
Author: Jae-Jin Kim
ISBN: 9789533075181 Year: 2011 Pages: 688 DOI: 10.5772/553 Language: English
Technological advancement in graphics and other human motion tracking hardware has promoted pushing ""virtual reality"" closer to ""reality"" and thus usage of virtual reality has been extended to various fields. The most typical fields for the application of virtual reality are medicine and engineering. The reviews in this book describe the latest virtual reality-related knowledge in these two fields such as: advanced human-computer interaction and virtual reality technologies, evaluation tools for cognition and behavior, medical and surgical treatment, neuroscience and neuro-rehabilitation, assistant tools for overcoming mental illnesses, educational and industrial uses. In addition, the considerations for virtual worlds in human society are discussed. This book will serve as a state-of-the-art resource for researchers who are interested in developing a beneficial technology for human society.
Physical Sciences, Engineering and Technology --- Computer and Information Science --- Human-Computer Interaction --- Virtual Computer System
Holography, Research and Technologies
Author: Joseph Rosen
Holography has recently become a field of much interest because of the many new applications implemented by various holographic techniques. This book is a collection of 22 excellent chapters written by various experts, and it covers various aspects of holography. The chapters of the book are organized in six sections, starting with theory, continuing with materials, techniques, applications as well as digital algorithms, and finally ending with non-optical holograms. The book contains recent outputs from researches belonging to different research groups worldwide, providing a rich diversity of approaches to the topic of holography.
Physical Sciences, Engineering and Technology --- Computer and Information Science --- Human-Computer Interaction --- Computer Technology
IntechOpen (9)
Palgrave Macmillan (1)
Peter Lang International Academic Publishing Group (1)
CC by-nc (3)


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Q: Intuitive Question about Klein Bottles and Torsion in Surface Groups This is just a geometric sort of question about how to picture/intuit on homology, hope it's considered attractive and not just "vague" haha
So if you take a typical generator for the torsion element in $H_1(K)$, where $K$ is the Klein Bottle, you can picture deforming the loop down the 'length of the tube' and getting the orientation reversed when you get back around.
However, I'm wondering if there is another way to visualize the torsion.  If you take a stretchy piece of string and wind it around twice the torsion element, then tie the ends off, is there a way to deform the string so that it simply "falls off" the Klein Bottle?  Or is this asking too much?
Obviously "falls off" is sort of a 3-d notion.  I guess what I'm asking is that if your Klein bottle is sitting in a high-dimensional Euclidean Space (I guess 5+ should suffice to avoid any complications at all, but maybe 4 is fine as well), is the map that winds a circle around (a tubular neighborhood around) the torsion element twice homotopy-equivalent to a free loop rel $K$?  Or is this not quite the right question?
Thanks!

A: What you're asking sounds more like torsion in the fundamental group. The intuition works for instance for $\mathbb{RP}^2$. Wind your loop around twice and suddenly you can continuously deform your loop into a point. Since $H_1$ is the abelianisation of $\pi_1$, part of this intuition is reflected onto $H_1$ as well.
The case of the Klein bottle would be a bit more subtle because although H1 has torsion, it doesn't come from torsion in $\pi_1$ (I think $\pi_1$ is torsionfree). Somewhat tautologically, you should still be able to say that, upon going around your loop twice, it becomes the boundary of some $2$-cycle, and perhaps if you squint hard enough you can see this geometrically.

OK so I said that if you squint you get to see the torsion so let's squint. We have two $2$-simplices $A$ and $B$, and we can make sense of their boundaries. We have $\partial A = a + b - c$, and $\partial B = -a + b + c$. That means that $\partial(A + B) = 2b$, which means that by adding $b$ up to itself we suddenly get to realise it as the boundary of a $2$-simplex.
This makes sense from the picture. $A$ and $B$ together can be thought of as the entire square, and tracing along its boundary we see that we pass through $b$ twice with the correct orientation.

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The King is breaking in his new regal colors.
LeBron James took to his Instagram story on Wednesday to share a snapshot of himself decked out head to toe in his Lakers jersey for the first time.
James -- who nearly broke the internet with fan excitement, freak-outs and hot takes when he signed with the Los Angeles Lakers for $154 million just over a month ago -- finally gave his followers a glimpse at what he's going to look like when he's rocking purple and gold on the court when the upcoming NBA season kicks off later this year.
In the first of three pics, James rocked his No. 23 jersey -- the number he wore during both his stints with the Cleveland Cavaliers -- as he walked through a parking structure in a pair of Nike 'I'm King' LeBron 15s.
In a follow-up pic James shared to his story, the basketball great smiled for the camera while sitting in a dressing room in his new uniform. The big difference in this pic are the shoes. James opted to debut the Lakers-inspired Nike Undefeated x Zoom Kobe 1 Protros, complete with gold and a hint of purple.
The 33-year-old NBA star seemingly used the shoes to shade Lakers fans who were unhappy with comparisons between himself and retired Lakers legend Kobe Bryant.
"U mad huh?!?!" James wrote on the snapshot, along with some laughing emojis. To make the dig more readily apparent, he followed it up with a final snapshot that was just a close-up of the Kobe-branded sneakers, over which he wrote, "Oh my bad I didn't properly intro these on my last post," along with more laughing and fire emojis.
While James' critics might not love seeing the star rocking Lakers colors, his overwhelming chorus of fans were deafening in their excitement.
Lebron wearing Kobe's in a Laker jersey.
For more on James' warmly received move to the Lakers, check out the video below.


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Q: Negative digits instead of negative sign Instead of a negative sign, allow some digits to represent negative numbers. In base 10, define $a=-4, \; b=-3, \; c=-2, \; d=-1$:
$\cdots$ -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 $\cdots$
$\to$
$\cdots$ d4 d5 a b c d 0 1 2 3 4 5 1a 1b 1c 1d 10 11 $\cdots$
Any number expressible with just the positive digits is the same: $10\to10$, $5213\to5213$. Addition, multiplication, other operations are sensible, it works for any base higher than binary. A number is negative if the first digit is one of the negative digits: $-237 \to ca3$
The one real advantage to numbers written this way is that the negative sign is only used once per number to say whether a positive or negative, while each of these digits may be used abundantly throughout the number. A disadvantage is that the range of positive numbers expressible in $n$ digits is cut down, since the same number of digits need to express negative numbers. Of course, another disadvantage is for being used to the normal system: it's a mindbender to interpret $4b6cc31$.
This is simple enough, I'm sure it already exists. What is it?
p.s. Not sure what to tag this other than "number-systems", sorry.


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A Casa de Rieux tem origem numa família da nobreza francesa de Idade Média e da renascença. Este ramo familiar encontra as suas origens predominantemente na região da Bretanha.

Senhores de Rieux
 Joana de Harcourt (1399 - 1456), foi condessa de Harcourt entre 1452 e 1456, filha de João VII de Harcourt e casada em 1414 com João III de Rieux (1377 - 1431), Senhor de Rochefort, de quem teve:
 Francisco de Rieux (1418 - 1458), foi conde entre 1456 e 1458 e filho do anterior, casou em 1442 com Joana de Rohan, de quem teve:
 João IV de Rieux (1447 - 1518), foi conde entre 1458 e 1518 e filho do anterior, casou com Isabel de Brosse (? - 1527), filha de João II de Brosse, conde de Penthièvre, de quem teve:
 Claude de Rieux (1497 - 1532), foi conde de 1518 a 1532 e filho do anterior, casou com Susana de Bourbon-Montpensier (? - 1570), filha de Luís de Bourbon-Vendôme (1473 - 1520) e de Luísa de Montpensier, de quem teve:
 Henrique de Rieux (? - 1557), foi conde entre 1532 e 1557 e filho do anterior. Não teve filhos, pelo que o condado foi herdado pela sua irmã.
 Luísa de Rieux (1531 - 1570) foi condessa entre 1557 - 1570 e irmã do anterior. Casou em 1555 com René da Lourena (1536 - 1566), marquês de Elbeuf (com o nome de René II), descendênte de António de Vaudémont e de Maria de Harcourt. Com este acontecimento Harcourt passa então aos descendentes, do ramo de Elbeuf de la branche da Casa de Guise e da Casa de Lorraine.

Ver também
 Lista de senhores de Harcourt

Armorial

Bibliografia

História da França
Rieux
Dinastias católicas romanas

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