Visit Istanbul Turkey and you will find it a very interesting city to explore. It stands at the crossroads between liberal Europe and traditional Asia. However, most Turkish people view Istanbul as a more European metropolis. Still the city has managed to honor its past by preserving its oldest district.
If you come to Istanbul Turkey and don't know how to begin your metropolis exploration, visit the Old City, where the legacy of this great city started.
After Constantine the Great conquered the city he made it the new eastern capital of the Roman Empire in 330 AD. The city became widely known as Constantinopolis (Constantinople), which in Latin means the "City of Constantine". By the 19th century, however, the city had acquired a number of other names used by either foreigners or Turks.
Istanbul (this is the English spelling) was officially adopted as the sole name of the city in 1930. The name Istanbul derives from a Medieval Greek phrase which meant "to the city". As a result this reflected its status as the only major city in the vicinity. Much in the same way people today often colloquially refer to their nearby urban centers as "the City".
An alternative view is that the name evolved directly from the name Constantinople, with the first and third syllables dropped. While in English the stress is on the first syllable (Is). In Turkish the stress is on the second syllable (tan). In English a person from the city is an Istanbulite.
Istanbul was founded around 660 BC as Byzantium. That city is now known as Istanbul. It has developed to become one of the most significant cities in history. For nearly sixteen centuries following its reestablishment as Constantinople in 330 AD, it served as the capital of four empires. It was the Roman Empire (330–395), the Byzantine Empire (395–1204 and 1261–1453), the Latin Empire (1204–1261), and the Ottoman Empire (1453–1922).
The city was instrumental in the advancement of Christianity during Roman and Byzantine times. That was before the Ottomans conquered the city in 1453 and transformed it into an Islamic stronghold. The Republic of Turkey established its capital in Ankara. As a result, palaces and imperial mosques still line Istanbul's hills. It is a visible reminder of the city's previous past.
Istanbul is the world's fifth most popular tourist destination. As a result it is a great travel destination. It is a city of fantastic history, culture and beauty. Formerly it was known as Byzantium and Constantinople. Istanbul is the most populous city in Turkey. You're in good company when you visit Istanbul turkey.
Istanbul is the largest city in Turkey. It constitutes the country's economic, cultural, and historical heart. It has a population of 13.9 million and the city forms one of the largest urban agglomerations in Europe. Istanbul is among the largest cities in the world by population within city limits. The city has a huge area of 5,343 square kilometers (2,063 sq. mi). Hence due to its huge size, it has a population density of only 2,593/km2 (6,720/sq. mi).
Istanbul is a transcontinental city, straddling the Bosphorus. The Bosporus or Bosphorus is a narrow, natural strait. The strait is an internationally significant waterway located in northwestern Turkey. It is also known as the Istanbul Strait. Located between the Sea of Marmara and the Black Sea its commercial and historical center lives in Europe. A third of Istanbul's population lives in Asia.
Seven million foreign visitors visited Istanbul in 2010 when it was named a European Capital of Culture. As a result the city became the world's tenth-most-popular tourist destination. The city's biggest draw remains its historic center which is partially listed as a UNESCO World Heritage Site. But its cultural and entertainment hub can be found across the city's natural harbor, the Golden Horn.
The biggest attraction in the city is its historic center. It is partially listed as a UNESCO World Heritage Site. Its cultural and entertainment hub is across the city's natural harbor, the Golden Horn, in the Beyoğlu district. Istanbul is considered a global city. It has one of the fastest-growing metropolitan economies in the world.
The Old City of Istanbul encompasses the Sultanahmet and Eminonu sections, which are situated on the peninsula surrounded by the Golden Horn River and Bosporus Sea. This is truly a historic area, as it was where Constantinople, the glorious Byzantine capital was located. As the previous administrative capital for the Ottoman Empire, the Old City flourished.
The palaces, government offices and other historical monuments built around the area are reminders of the city's development and growth. To appreciate these structures up close, go for a walking tour around the area. If your feet are not up to the task, you can also ride the tram network, which has stops near most tourist landmarks.
One of the most impressive buildings in the Old City is the Ayasofya Müzesi. It was originally built as an Orthodox Church during the reign of the Byzantine Empire. By the 15th century, it was converted into a mosque. Today, the building is now the Hagia Sophia Museum, and has served as an iconic landmark for the Istanbul.
An Istanbul street at night.
Walk across Ayasofya, to visit another highly distinct landmark in the Old City, which is the Blue Mosque. Locally known as Sultanahmet Camii, it is considered the biggest and one of the most historically important mosques in Istanbul. Do not be surprised this mosque's exterior is not blue, as it has taken its name from the blue tiles used to decorate its interior walls.
Another architectural masterpiece you should not miss visiting is the Yerebatan Sarinci or the Basilica Cistern, which is the largest of its kind in Istanbul. Built under the order of Byzantine Emperor Justinian, the cistern features more than 300 marble columns that support a huge ceiling.
When it comes to design and historical value, the Topkapi Palace (Topkapi Sarayi) should also be at the top of your itinerary. A former residence of the Ottoman Empire Sultan, the palace is quite enormous with four courtyards and spacious imperial rooms.
A tour around the entire Topkapi Palace may take quite a bit of time, but it can definitely give you a fascinating glimpse of how a sultan lived his lavished life. The Old City is also home to some of the best museums in Istanbul. That includes the Great Palace Mosaic Museum and the Istanbul Archaeological Museum. Additionally it includes the Museum of Turkish and Islamic Art.
Remains of a Byzantine column of Byzantium's acropolis, located today within the Topkapı Palace complex.
Istanbul's architecture reflects much of the past. It is primarily known for its Byzantine and Ottoman architecture. However, its buildings reflect the various peoples and empires that have previously ruled the city.
Examples of Genoese and Roman architecture remain visible in Istanbul alongside their Ottoman counterparts.
A section of the Valens Aqueduct, constructed in the late 4th century, stands relatively intact at the western edge of the Fatih district.
The Column of Constantine, erected in 330 CE to mark the new Roman capital, stands not far from the Hippodrome. Lying in ruins is the Monastery of Stoudios (later converted into the Imrahor Mosque), which was built in 454.
Have you been to Istanbul? If so, add your insights below about this exciting travel destination.
After an exciting exploration of all the magnificent architectural pieces within the Old City, walk your way to the Grand Bazaar locally known as Kapali Carsi.
This huge closed market has been in existence since the 15th century in 1461, and features various types of shops. Here, you can find the products that are of great value to the Turkish culture.
There is also the Mahmutpasha Bazaar which is an open-air market or a shopping street extending between the Grand Bazaar and the Egyptian Bazaar, which has been Istanbul's major spice market since 1660. This market area, with lots of small shops on both sides of the main street is a symbol of cheap shopping in Istanbul. The bazaar hosts over 200 shops.
These bazars and their wares are awfully tempting. Maybe you should buy a souvenir or two to bring home a small part of Istanbul with you when you visit Istanbul Turkey.
Hagia Sophia lit up at night.
Museums and other things: Haghia Sophia, then on to the Topkapı museum. Preferably along the road in the back of the Haghia Sophia, where there are some nicely restored houses. Then on to the Blue Mosque and the square with the obelisks on it (At Meydani). Along its side is the Museum of Islam Art. Descend slightly and find the small Haghia Sophia with its nice garden. Then uphill to the Sokollu Mehmet mosque complex, where there are top notch tiles inside.
The original walls from 408 CE of Constantine were replaced in the reign of Theodosius. They are still almost completely intact, marking the western border of the peninsula of Old City. About a 7 kilometer walk along and on these remaining portions of the city wall gives you a window into antiquity. It puts an emphasis on Turkey's terrible historic monument legacy.
If you're interested, you can download and print a scholarly historical and technical description of the walls. It's best you do this before you visit Istanbul to give you a better understanding of the wall's history and meaning.
Visit this restored section of city walls at Belgradkapı Gate. It is close to Marmara coast.
There are parts of the wall where you have a choice of walking up the outer wall or the inner wall. But access to the top of the battlements is usually on the inside. In places you can climb up onto this section of unrestored wall on crumbling brick and stone. Sometimes there are dwellings and commercial enterprises up against the wall. Sometimes a bus depot, a rubbish dump or often just the road.
Finally you will arrive at the Golden Gate and Yedikule Fortress. It fronts the Marmara Sea and was Byzantium's triumphal point of entry. You do have to pay an entry fee. The high walls and towers are all accessible. One tower still has internal wooden floors.
If you take the full walk you would have surveyed the protective land walls which kept Byzantium and the Eastern Roman Empire safe for all those years after the fall of Rome. They were breached only by the 4th Crusaders and the Ottomans.
There is a large ferry cruising to Anadolu Kavagi at the northern entrance of Bosphorus to the Black Sea. It has various stops. It is very popular, so arrive early and get in line. The open decks are very popular. Unless you have an outside seat expect people to be standing all around you restricting your view. The ferry does stop for a few hours in Anadolu Kavagi. So as you leave the ferry you you will see numerous restaurants and their spruikers.
Take a Boshporous cruise while visiting Istanbul.
First take the walk to the Yoros Kalesi, a strategic castle overlooking and controlling the entry to the Black Sea. This was an important fortification with a commanding view. It was fought over for many years. It was last in use in the 19th century. Since then it has fallen into serious disrepair. However, Christian engravings are still visible in the stonework.
There are restaurants actually in the castle surrounds and naturally have spectacular views. After you wander back to the village grab a lunch. Later in the afternoon you can take the ferry back to Eminonu.
North of Taksim Square is New Istanbul. It is the main business district of the city. If venturing out in this direction, don't forget to check out Military Museum. It is where Ottoman military music concerts (Mehter) are held every afternoon. Nice music is always good to hear. It helps to clear your mind. There is also the Museum of Islam Art.
A visit to a hamam (Turkish bath) should be an essential part of any trip to Istanbul. It is something you'll almost surely repeat before leaving.
There is at least one historical hamam in each neighborhood of Istanbul. Be sure to take care in selecting a hamam. They can vary greatly in cleanliness.
Most places will offer a scrubbing and/or a massage. Just being in the Hamam (as a sauna), is enough for seeing and experiencing the place. However, the scrubbing is a great experience. The massage is not, however, necessarily any better than those found in western countries.
Due to its long history as the center of many empires, Istanbul offers a wealth of historic and religious places to see. Most of these ancient monuments, date back to Roman, Byzantine, and Ottoman periods. Such monuments include the Hagia Sophia, Topkapı Palace, Sultanahmet Mosque (Blue Mosque), and Basilica Cistern. They are around Sultanahmet Square.
Istanbul Miniaturk Park. It was the first miniature park in the city, with models from around the former Ottoman Empire.
Some others are dispersed throughout the peninsula of old city. One, such as the Church of the Holy Saviour in Chora, has the entire inside covered by fantastic frescoes and mosaics. Across the Golden Horn, is Galata, crowned by the Galata Tower. Another area with a few big good looking places is the Rıhtım Caddesi, between Galata bridge and Istanbul Modern Museum. Istanbul Modern, has exhibitions of contemporary Turkish art and is located on the nearby waterfront of Karaköy.
On the opposite shores of the Horn, in Sütlüce is the Miniaturk. It was the first miniature park in the city and has models from around the former Ottoman Empire. Along the banks of Bosphorus, is lined by pleasant neighborhoods full of waterfront mansions. There are a number of waterside palaces that you can admire what money could buy in times gone by.
A neighborhood that may be well worth a visit is Eyüp. That's where the city's holiest Islamic shrine is.
The mosque of Eyüp is the holiest in Istanbul. Indeed after Mecca and Jerusalem it is perhaps the most sacred place of pilgrimage in the Islamic world.
You will see all the religious people wandering around the narrow cobblestone streets. Many with turbans and what not. There you can see what daily life in Ottoman Istanbul might be like.
The Bosphorus Bridge at night.
Across the Bosphorus to the east is Asian Side. It is centered around the historical districts of Kadıköy and Üsküdar. It is perhaps best symbolized by Maiden's Tower, located at about halfway between these districts, on an islet just off the shore. Bosphorus and Marmara coasts of this half of the city is characterized by quite picturesque neighborhoods.
It is overlooked by Çamlıca Hill and is one of the highest hills of the city. It also has a view of much of the rest of the city, with a café and a pleasant park on its summit. Southeast of the city, off the southern coast of Asian Side are the Princes' Islands. It is an archipelago of nine car-free islands. It is characterized by stunning wooden mansions and pine groves.
Maiden Tower (Kız Kulesi) in the evening. Photo by Mkaraarslan.
Today Kadıköy and Üsküdar are the main areas of visitor interest on the Asian side. Inland are miles of bland suburbs, with high-rise apartment blocks and shopping malls. Those sprang up when the first Bosphorus bridge made inter-continental commuting easier. The Asian Side has about 4.4 million people. That's a third of Istanbul's population. Some 1.3 million of them commute daily to Europe.
There are however, a string of interesting places along the Bosphorus coast. You can see old palaces, mansions, and neighborhoods with character. There are also stretches of parkland along the Marmara coast. In 2005 the city boundaries were extended on both sides. These new areas of Istanbul are mostly rural, but may not stay that way much longer.
Being mostly residential and rural there isn't a lot for tourists to do.
There is Caddebostan Beach. it was recently opened on the site of a beach that existed 40 years ago, before Istanbul became the huge city it is today. It has a re-created sandy strand 450 meters long, and a kiosk offering snacks and soft drinks. The beach is run by the city council. It becomes very crowded on summer weekends so keep that in mind if you want to visit.
You can catch a classical musical performance at the Süreyya Opera House. It used to be a movie theater. This turn-of-the-20th-century Beaux Arts building now houses performances of ballet, opera, and classical concerts. Good tickets are often very cheap. Founded in 1918, the society is often considered the most respected social club offering classes in the classical Ottoman music.
Tarihi Çinili Hamamı is on this side of Istanbul. It is cheaper than on European side. You can get a full massage and scrub.
Istanbul has been a cosmopolitan city throughout much of its history, but it has become more homogenized since the end of the Ottoman Empire. However, most of Turkey's religious and ethnic minorities remain concentrated in Istanbul.
The vast majority of people across Turkey, and in Istanbul, consider themselves Muslim, and more specifically members of the Sunni branch of Islam. The largest non-Sunni Muslim sect, accounting for 4.5 million Turks, is the Alevis; a third of all Alevis in the country live in Istanbul.
There are between 50,000 and 70,000 Armenians in Istanbul. The largest ethnic minority in Istanbul is the Kurdish community, originating from eastern and southeastern Turkey. Between two and four million residents of Istanbul are Kurdish. This makes more Kurds in Istanbul than in any other city in the world. There are small numbers of Jewish, Greeks, and Latin Christians in the city.
Istanbul's climate is noteworthy as a borderline Mediterranean climate and a humid subtropical climate. It is the result of only two summer months with less than 1.6 in of rainfall. Istanbul exhibits microclimates due to its vast size, diverse topography, and maritime location.
Northern parts of the city express characteristics of an oceanic climate as a result of humidity from the Black Sea and the relatively high concentration of vegetation. The climate in the populated areas of the city in the south is warmer and less affected by humidity.
One of the most salient characteristics of the climate in parts of Istanbul is its usually high humidity. As a result it reaches 80 percent most mornings. Consequently fog is very common, although more so in northern parts of the city and away from the city center.
During the two summer months, high temperatures average around 29 °C (84 °F) and rainfall is uncommon. There are only about fifteen days with measurable rain between June and August. Nevertheless, despite the low precipitation, the summer months also have the highest concentration of thunderstorms.
Winter is colder in Istanbul than in most other cities around the Mediterranean Basin. The low temperatures average 4–5 °C (39–41 °F). Spring and autumn are mild, but often wet and unpredictable. Chilly winds from the northwest and warm gusts from the south, sometimes in the same day, tend to cause fluctuations in temperature.
Depending on your preferences and time off, pick a convenient time to visit Istanbul when the season is right for you.
Charles has a blog of some of his adventures. He also reviews Business' and website PLR.


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Chephren's Quarry
Chephren's Quarry is situated in the easternmost part of the Sahara - covering nearly 100 km 2 of flat, hyper-arid desert, some 60 km west of Lake Nasser (River Nile) and the famous Abu Simbel temple in the extreme south of Egypt. In the 3 rd and 4 th millennium BC, the quarry was used for extraction of stone for now world-famous sculptures and thousands of smaller funerary objects, especially vessels.
"Chephren gneiss"
Chephren's Quarry is situated within a complex of Precambrian, metamorphic igneous rocks, occurring as a "window" where younger rocks have been removed by erosion. The rock type subjected to quarrying is a light bluish, greyish to white gneiss with dark bands and spots - referred to as the "Chephren Gneiss". It is predominantly composed of plagioclase feldspar (light coloured) and amphibole (dark coloured). Chephren Gneiss occurs as large and small inclusions in granitic rocks, resulting in a highly irregular outcrop pattern, and causing a similarly uneven and scattered distribution of quarries. Almost all the outcrops of Chephren Gneiss have been exploited to some degree.
Quarrying technology
The quarrying of the Chephren Gneiss has uniformly targeted loose boulders of gneiss on the terrain surface, formed by in situ, spheroidal weathering over long periods of time. The gneiss boulders were worked with stone hammers and axes from local sources, and also fire-setting was partially applied in the rough shaping of blocks. Essentially, the quarrying process transformed the rounded boulders into heaps of waste-rock, most of them forming circular heaps around the space were the blocks were situated. In addition to the extraction sites themselves, the quarry landscape displays roads, ramps for loading blocks, shelters and small settlements, wells, cairns and other features related to the logistical side of quarrying and maintenance of the labour force. Of particular value for the interpretation of the individual quarries are semi-finished products, such as vessel-"blanks" and finely worked statue blocks.
Peak consumption in the Old Kingdom
Evidence from the consumption record suggests that the quarrying started as early as the Late Neolithic. However, evidence of consumption and from the archaeological record in the quarries, implies that exploitation peaked between the 3 rd and 4 th Dynasties of the Old Kingdom (c. 2650-2465 BC), for both vessels and statue blocks. Predominantly, the quarrying seems to have been organised as short-lived campaigns for specific purposes (i.e. Chephren statues), as there is no evidence of permanent settlements in the area, but whether or not there existed a more permanent vessel-production and trade of such remains unclear.
A unique quarry landscape at risk
The uniqueness of Chephren's Quarry is related to the fact that it presents one of the earliest evidence of prestigious stone acquisition from remote areas in Antiquity, and (until the last few years) is extremely well preserved. The site is very rich in archaeological information, and only a minor part of that has been excavated. As a physical landscape, the site may look "un-spectacular" at first sight, but when compiling the spatial distribution of quarries and ancient infrastructure, it reveals one of the supposedly largest industrial landscapes of Early Antiquity in the world. Unfortunately, the site is severely threatened by the Toshka land reclamation and irrigation project (under construction) and even though proper registration of the site has been done recently, its future as a unique quarry landscape remains unclear. In QuarryScapes, Chephren's Quarry will be used as a case study within Work-package 5 (Egypt risks and monitoring) and 7 (Quarry Landscape GIS), including the compilation of an extensive site map.
Text by Tom Heldal
The site is included in work-package 5 and 7
One of the famous life sized statue of King Chephren, made of Chephren Gneiss.
Shallow quarries in a flat desert landscape, typical of the Chephren's Quarry. Photo by Tom Heldal.
Overview map of the Chephren's quarry area and details of some of the northern quarries. (Click on picture to maximize) © NGU
Example of gneiss boulder shaped to fit a sitting pharaoh statue, found in Chephren's Quarry. Graphics by Tom Heldal.
Loading ramp for transporting statue blocks from the quarry to the Nile. Photo by Tom Heldal.

redpajama_set_name: RedPajamaCommonCrawl


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Blockbuster's Largest Shareholder Calls Blockbuster Worst Investment Ever Made
Finally! Admission of wrongdoing! After years as Blockbuster's largest shareholder, Carl Icahn, who at one point amassed some 17 million shares of the now-bankrupt company, has called Blockbuster "the worst investment I ever made."
By Austin Carr 2 minute Read
Finally! Admission of wrongdoing!
After years as Blockbuster's largest shareholder, Carl Icahn, who at one point amassed some 17 million shares of the now-bankrupt company, has called Blockbuster "the worst investment I ever made."
In a candid piece written for the Harvard Business Review, Icahn opens up about the rental giant's struggles and failures in an ever-changing industry.
"[Blockbuster] failed because of too much debt and changes in the industry. It had too many stores, Netflix created a better business model, and then Redbox kiosks and the whole digital phenomenon eliminated the need for consumers to go to a separate DVD store," Icahn wrote. "Maybe the board did make a mistake in picking Jim Keyes as [John] Antioco's successor—Keyes knows retailing and did an excellent job with the stores, but he isn't a digital guy."
Icahn's comments are especially refreshing given Blockbuster's typical penchant for denial. In a series of interviews with Fast Company, Blockbuster CEO Jim Keyes (who replaced the company's former head John Antioco after a spat with Icahn over his bonus) held what we called an almost delusional optimism for the company. (Keyes once compared Blockbuster's potential for comeback to Apple in the late 1990s.) When asked whether Netflix was partly responsible for Blockbuster's financial troubles, for example, Keyes said, "No, I don't know where that comes from." And when asked whether Netflix could ever overtake Blockbuster as a global market leader, Keyes added, "I don't even–we have such different business models … I think we co-exist quite well with Netflix."
Of course, as Icahn essentially argues, Netflix and Blockbuster did not co-exist well at all. Netflx had a better business model, Icahn says, because Blockbuster strayed from its digital efforts.
"I also think Antioco did a good job in executing on Blockbuster's Total Access program, which allowed customers to rent unlimited movies online and in stores," he wrote. "Over time it might have helped Blockbuster fend off Netflix. But Keyes felt the company couldn't afford to keep losing so much money, so we pulled the plug. To this day I don't know what would have happened if we'd avoided the
big blowup over Antioco's bonus and he'd continued growing Total
Access. Things might have turned out differently."
But as any Blockbuster shareholder can attest, Blockbuster was unable to fend off Netflix. Competitors continues to pummel the stagnantly innovative company until its shareprice and valuation dropped so low that it was de-listed from the New York Stock Exchange and forced to file for bankruptcy.
Not that Blockbuster's head of digital strategy Kevin Lewis was too concerned. In the weeks before filing for bankruptcy, Lewis told Fast Company, "We're strategically better positioned than almost anybody out there … if you asked me in 2009 whether we'd be the only one in the mobile space selling movies other than Apple and whether we'd have Blockbuster On Demand–never in my wildest dreams would I have aimed this high."
That type of echo chamber-management is exactly what led to Blockbuster's demise.
[Image by AMH]
Austin Carr writes about design and technology for Fast Company magazine.


We use advanced Finite Element Analysis (FEA) software in analysis of Roll-Over Protective Structures (ROPS) for off-road mobile equipment and other machined parts. Our extensive expertise in calculating structure deflection and energy absorbsion allows quick response in the early stages of design.
As a complement to physical testing, FEA allows preliminary evaluation of complex welded structures; predicting performance of the extrusion and reducing risk of failures during actual testing. By identifying high-stress areas, engineers modify design elements to eliminate or reduce potential failures. Prior to FEA, we have developed manual mathematical equations for structure analysis. Each element of evaluation targets minimal material for maximum performance, reducing material cost, weight and processing time for the production of products.


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The 11th International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QShine 2015) will take place on August 19–20, 2015 in Taipei, Taiwan!
For the 11th time QShine proposes multidisciplinary collaborations on Computer networking, which has been embracing increased heterogeneity since its inception. The 2015 edition of Qshine will focus on the Innovative and Intelligent Infrastructure for the Future Networks.
'QSHINE has been established as the primary venue for researchers and practitioners to disseminate, exchange and discuss all recent advances related to heterogeneous networking, particularly for quality, experience, reliability, security and robustness' declared Dr. Der-Jiunn Deng, General Chair of QShine 2015, during his interview with EAI.
Why to attend the Conference? QShine 2015 is a high-level conference which permits expertises sharing their knowledge and point of view. It will also host some of the most distinguished experts in the field such as: Prof. Yi-Bing Lin (Ministry of Science and Technology, Taiwan) and Prof. Kwang-Cheng Chen (National Taiwan University, Taiwan).
In addition, QShine will also host special sessions: Sensor Networks and Cloud Computing, Heterogeneous Big Data Processing in Mobile Cloud Computing and 5G Communication Architecture and Technology.
Are you into Heterogeneous Networking? Don't lose the great opportunity to attend the Conference in The City of Azaleas!
Find more info about the conference here.
This entry was posted in News and tagged cloud computing, editors, Future Networks, Heterogeneous Networking, Intelligent Infrastructures. Bookmark the permalink.


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text:
\section{Introduction}
The investigation of statistical mechanics systems with quenched  disorder, such as spin glasses and random field models, has challenged theoretical physicists as well as mathematicians for many years.  The heuristic and  rigorous techniques developed in this field, namely the replica and cavity methods \cite{Parisi1987,Montanari2009}, the interpolation technique \cite{Guerra2003,Talagrand2003} and the objective method  \cite{Aldous2003}, proved to have a wide range of applicability and enlightened a very rich phenomenology.

Among mean fields models, much has been established regarding fully-connected topologies, while diluted systems have been an harder problem to tackle. They have been the subject of intensive investigation in the last two decades \cite{Montanari2009} and show some of the properties of finite dimensional models (e.g. the existence of many solutions to the saddle point equation in the Random Field Ising Model (RFIM) \cite{Krzakala2010}, causing the breakdown of dimensional reduction in finite dimension).
The main feature of diluted random graphs, that of being locally tree-like in the large graph limit, is exploited by the cavity method, also known in its simplest (replica symmetric) form as Bethe approximation, to produce exact asymptotic results \cite{Me2001,Montanari2009}.

When dealing with finite dimensional systems though, the presence of many short loops poses huge problems to such analytic techniques and few solid results have been achieved.
Fundamental topics such has the presence of a glassy phase in low-dimensional spin glasses \cite{Janus12,Larson2013} or the value of the critical dimension marking the  breakdown of dimensional reduction in the RFIM \cite{Tissier2011} are still at the centre of a much heated debate.

The development of a perturbative formalism around the Bethe approximation, to systematically include the effect of loops in a graph, is highly desirable and could shed  some light on these problems. This task has been undertaken in the last years using different approaches \cite{Montanari2005,Chertkov2006,Chertkov2006a,Parisi2006,Vontobel2013,Mori2012} but still the computations remain analytically and computationally challenging.

Here we  focus on disordered systems with a random topology, the one of random regular graphs (RRG), where the density of finite loops goes to zero as the system size goes to infinity. In the thermodynamic limit the free energy density of the system can be described through the cavity method (or equivalently the replica method), being the one of a Bethe lattice.
When the number of vertices $N$ in the graph is finite though, the average free energy density $f(N)$  resents the presence of loops. If $f(N)$ has a regular expansion around $N=\infty$, each term of the $1/N$ expansion $f(N)=f_0+f_1/N +o(1/N)$ would account for the contribution of a certain class of loopy structures. We see that in the context of diluted systems, finite size corrections and loop expansions are strictly related concepts.
In this paper we set up a formalism, based on a replicated action, apt to the systematic computation of the $f(N)$ expansion for disordered Ising systems in the replica symmetric phase. We calculate explicitly the first correction $f_1$ to the thermodynamic free energy.
It is simple combinatorics to show that only simple (i.e. non-intersecting) loops can participate to the $O(1/N)$ correction $f_1$. In fact more complicated loopy subgraphs, with none dangling nodes, typically involve only a  fraction $O(1/N^2)$ of the total number of nodes, therefore can only contribute to higher order terms in the free energy expansion. Obviously this fact naturally emerges from the analytic computation as well.

In Section \ref{sec:repl} we introduce the replicated formalism for the RRGs and compute the saddle point approximation, the details of the calculation being left to Appendix \ref{app:App1}. In Section \ref{sec:finite} and Appendices \ref{app:App2} and \ref{app:tr}, we compute the $O(1/N)$ finite size correction to the average free energy  from the Gaussian fluctuations around the saddle point. It is given by the formula
\begin{equation}
f_1 = \sum_{\ell=3}^{\infty} \mathcal{N}(\ell) \,\Delta\phi_\ell ,
\label{eqf1}
\end{equation}
where $\mathcal{N}(\ell)$ is the average number of loops of length $\ell$ in the graph, and $\Delta\phi_\ell$ is the free-energy shift given by the addition of a non-intersecting loops of length $\ell$ to an infinite tree. A similar though slightly different result was found by the authors in the context of Erd\"{o}s-R\'enyi (ER) random graphs \cite{Ferrari2013}. It the ER case
the formula
\begin{equation}
f^{\text{ER}}_1=\ \phi^{\text{ER}} +\sum_{\ell=3}^{\infty} \mathcal{N}(\ell) \,\Delta\phi^{\text{ER}}_\ell ,
\label{eqf1ER}
\end{equation}
there is an additional term, $\phi^{\text{ER}}$, containing the free energies of open chains of length $\ell=0,1,2$.
This additional term is related to the fluctuations in the nodes' connectivity
 and it is absent on the RRGs.

 In Section \ref{sec:cavity} we rederive Eq. \eqref{eqf1} and clarify its meaning using a simple probabilistic (cavity) argument.

We note that  the coefficients $\Delta\phi_\ell$ remain exactly the same in the $O(1/M)$ term of the free energy  expansion suggested in Ref. \cite{Vontobel2013,Mori2012} for finite dimensional systems, only the combinatorial factor $\mathcal{N}(\ell)$ changes accordingly to the number of non-backtracking paths present in the lattice.

To test the analytical result, we performed a numerical experiment on a $\pm J$ spin glass in a uniform external field $H$, and we found a good agreement between the theory and the simulations for different values of $H$, as reported in Section \ref{sec:num}.

\section{Replica formalism for random regular graphs}
\label{sec:repl}
We consider a model constituted by $N$ interacting Ising spins $\sigma_i=\pm 1$, $i=1,\dots,N$, defined by the Hamiltonian
\begin{equation}
\mathcal{H}=-\sum_{i<j}C_{ij}\sigma_iJ_{ij}\sigma_j-\sum_{i}H_i\sigma_i ,
\end{equation}
where the exchange couplings $J_{ij}$ and/or the local magnetic fields $H_i$ are  quenched independent random variables. The numbers $C_{ij}$ represent the entries of the adjacency matrix of a graph $G$ extracted from the Random Regular Graph (RRG) ensemble. They take the values $C_{ij}=1,0$ depending on whether or not  the vertices $i$ and $j$ are connected. Here we study $c$-RRGs, i.e., random graphs with vertices  having uniform degree $c$. The probability measure of the $c$-RRG ensemble is uniform over all the regular graphs of degree $c$. In order to compute the average free energy density of this model we use the replica trick \cite{Parisi1987}, that is we exploit the limit
\begin{equation}
-\beta N f(\beta,N)=\lim_{n\to 0}\ \partial_n\log[Z^n(\beta)]_{\mathrm{av}} ,
\label{eq:replicatedF}
\end{equation}
where $\beta$ is the inverse temperature of the system and $[\,\bullet\,]_{\mathrm{av}}$ denotes the average over the topological disorder (i.e. over the $c$-RRG ensemble) and the random couplings  $J_{ij}$ and fields $H_i$. In the following we will omit the explicit dependence of $Z(\beta)$ and other quantities from $\beta$.

As usual in the replica trick, we compute the integer moments $[Z^n]_{\mathrm{av}}$ of the partition function and continue analytically the resulting expression to real and small values of the replica number $n$, as needed by Eq. \eqref{eq:replicatedF}.

To solve the model in the thermodynamic limit (i.e. $N\to\infty$) and to obtain the finite size correction to this limit, we have to cast the averaged replicated partition function $[Z^n]_{\mathrm{av}}$ into an integral form suited to steepest descent evaluation. This procedure uses standard techniques \cite{Viana1985, *DeDominicis1987, *Mezard1987b, *Kanter1987} and is report in detail in the Appendix \ref{app:App1}. Here we quote only the final result, which reads
\begin{equation}
[Z^n]_{\mathrm{av}} = [\det(cU)]^{1/2} e^{\mathcal{A}(N,c)}
\int\mathcal{D}\rho\ e^{-N\mathcal{S}[\rho,N]} ,
\label{eq:IntegralReprOfZ}
\end{equation}
where the meaning of the different terms is presented below, exclusion made for
the explicit expression of the constant $\mathcal{A}(N,c)$, whose definition can be found in the Appendix \ref{app:App1}.
In the last equation the integral is performed over the space of all possible complex-valued functions $\rho(\sigma)\equiv\rho(\sigma_1,\dots,\sigma_n)$ of a $n$-replicated spin, taking $2^n$ different values. The action $\mathcal{S}[\rho,N]$ is a functional of $\rho(\sigma)$ and $N$, and at the leading order in $N$ can be written as
\begin{equation}
\begin{aligned}
\mathcal{S}_0[\rho]\,=&\frac{c}{2}\int\mathrm{d}\sigma\mathrm{d}\tau\ \rho(\sigma)U(\sigma,\tau)\rho(\tau)\\
&-\log\int\mathrm{d}\sigma\ e^{B(\sigma)}\left[
\int\mathrm{d}\tau U(\sigma,\tau)\rho(\tau)
\right]^c
\end{aligned}
\label{S0}
\end{equation}

The action $S_0$ will be optimized through the steepest-descent method. After that, we will integrate the Gaussian fluctuations around the optimal saddle point, thus obtaining the desired finite size corrections. The quantities $U(\sigma,\tau)$ and $B(\sigma)$  appearing in Eq. \eqref{S0} are defined  by
\begin{equation}
\begin{aligned}
U(\sigma,\tau)=&\,
 \mathbb{E}_J
\left[
\exp\left(\beta J\sum_{a=1}^n\sigma^a\tau^a
\right)
\right]
\end{aligned}
\end{equation}
and
\begin{equation}
\begin{aligned}
B(\sigma)=\log\mathbb{E}_H
\left[
\exp\left(
\beta H\sum_{a=1}^n\sigma^a
\right)
\right]\
\end{aligned}
\end{equation}

Saddle point evaluation of $\mathcal{S}_0$ leads to the following self-consistence equation for the order parameter $\rho$:
\begin{equation}
\rho_*(\sigma)=\frac{\mathrm{e}^{B(\sigma)}
\left[
\int\mathrm{d}\sigma' U(\sigma,\sigma')\rho_*(\sigma')
\right]^{c-1}
}
{\int\mathrm{d}\sigma'' \mathrm{e}^{B(\sigma'')}
\left[
\int\mathrm{d}\sigma' U(\sigma'',\sigma')\rho_*(\sigma')
\right]^{c}
}.
\label{eq:SPequation}
\end{equation}
Once a solution of Eq. \eqref{eq:SPequation} has been found,  using Eq. \eqref{S0} one gets the thermodynamic free energy density $f_0=\lim_{N\to\infty}f(N)$. The difficulties of the problem are all hidden in the solution $\rho_*(\sigma)$ of the saddle point equation. The function $\rho_*(\sigma)$ depends on the replicated spin $(\sigma_1,\dots,\sigma_n)$, and hence, it is uniquely determined by the set of the $2^n$ possible values it can take. The most general solution should specify all these $2^n$ values. Here we limit ourselves to the simplest solution, i.e., the replica symmetric one. This solution has the property to be invariant under the group of permutations of the replica indexes, therefore $\rho_*(\sigma)$ can depend only on the sum  $\sum_{a=1}^{n}\sigma_a $. The number of parameters necessary to fully specify a replica symmetric function is $n+1$ (and hence much smaller than $2^n$). The most general replica symmetric parametrization of $\rho_*(\sigma)$ can be written in the  form:
\begin{equation}
\rho(\sigma)=\int\mathrm{d} h\  P(h) \frac{\mathrm{e}^{\beta h\sum_{a=1}^n\sigma_a}}{[2\cosh(\beta h)]^n} ,
\label{eq:RsParametrization}
\end{equation}
where the function $P(h)$ depends implicitly on $n$ and  is non-negative and normalized to one in the limit $n\to0$.

Inserting the parametrization \eqref{eq:RsParametrization} into the saddle point equation \eqref{eq:SPequation}, and performing the limit $n\to0$, we obtain a self consistent equation for the density $P(h)$:
\begin{equation}
P(h)=\mathbb{E}_{J,H}\int\prod_{k=1}^{c-1}\mathrm{d} h_k\, P(h_k)\, \delta
\left[h-H-\sum_{k=1}^{c-1}\hat{u}(\beta,J,h_k)\right],
\label{eq:cavityEq}
\end{equation}
where $\hat{u}(\beta,x,y)=\beta^{-1}\tanh^{-1}[\tanh(\beta x)\tanh(\beta y)]$. We recognize Eq. \eqref{eq:cavityEq} as the self-consistent equation for the probability distribution $P(h)$ of the
cavity field on a RRG of connectivity $c$. Solving the last equation for $P(h)$ one can eventually evaluate the $n=0$ limit of Eq. \eqref{S0} and recover the thermodynamic free energy $f_0 \equiv\lim_{N\to\infty}\frac{f(N)}{N}$, given by the Bethe free energy approximation \cite{Montanari2009}.

\section{Finite size corrections}
\label{sec:finite}
In this section we present the analytical expression of the first finite size corrections to the free energy density of disordered Ising models on the RRG ensemble.
As we anticipated in the introduction, we assume the leading correction to the thermodynamical free energy density to be proportional to $1/N$. Therefore, we split $f(N)$ into the sum of the leading term plus the $1/N$ correction, that is
\begin{equation}
f(N) = f_0 + \frac{ f_1}{N} + o\left(\frac{1}{N}\right) .
\end{equation}

The detailed calculation of the coefficient $ f_1$, the main result of this paper, is given in the Appendices \ref{app:App2} and \ref{app:tr}. The derivation is based on the expansion of the contributions of the  Gaussian fluctuations of the replicated action around the saddle point, given by
\begin{equation}
-\frac{1}{2}\log \det \left(\frac{\partial^2 S_0}{\partial \rho(\sigma)\partial \rho(\tau)}\bigg|_{\rho_*}\right),
\end{equation}
as a power series containing the replicated transfer matrix of the system
\cite{Monasson96,Lucibello2014}. The final result reads
\begin{equation}
f_1=\sum_{\ell=3}^{\infty}\frac{(c-1)^\ell}{2\ell} \Delta\phi_\ell.
\label{eq:Fsc_finalFormula}
\end{equation}
The terms appearing in last equation and computed in the replica formalism have a clear physical meaning, as we will readily explain. We call $\Delta\phi_\ell$ the quantity defined by
\begin{equation}
\Delta\phi_\ell=\phi_{\ell}^c-\ell\,\phi.
\label{eq:FreeEnergyShift}
\end{equation}
where  $\phi_{\ell}^c$ is the average free energy of a closed chain (loop) of length $\ell$ embedded in the graph, that is
\begin{equation}
\phi_\ell^c \equiv-\frac{1}{\beta}\big[\log Z^c_\ell\big]_{\mathrm{av}}
\end{equation}
with
\begin{equation}
\begin{aligned}
Z^c_\ell&\equiv\sum_{\sigma_1,\dots,\sigma_\ell} e^{\beta(r_1 \sigma_1+J_1\sigma_1\sigma_2+\dots +r_\ell \sigma_\ell+J_\ell\sigma_\ell\sigma_1)}.
\end{aligned}
\end{equation}
The cavity fields $r_i$ are i.i.d. random variables sampled from the distribution
\begin{equation}
R(r)=\mathbb{E}_{J,H}\int\prod_{k=1}^{c-2}\mathrm{d} h_k\, P(h_k)\,\delta
\left[r-H-\sum_{k=1}^{c-2}\hat{u}(\beta,J,h_k)\right].
\label{eq:cavityEq_for_r}
\end{equation}
In other words, the cavity fields $r_i$ represent the effective fields coming from the rest of the graph on the nodes in a loop. The quantity $\phi$ is the intensive average free energy  of a closed chain with random couplings $J_i$, and random fields $r_i$, i.e. $\phi\equiv \lim_{\ell\to\infty}\frac{\phi_\ell^c}{\ell}$, and can be easily computed through cavity method \cite{Monasson96,Lucibello2014}.

The fact that the fields $r_i$ are independently distributed and that they obey Eq. \ref{eq:cavityEq_for_r}, containing the fixed point distribution $P(h)$, indicates that the contribution of each loop  can be considered independently from the others. In fact the factor $(c-1)^\ell/2\ell$ in Eq. \eqref{eq:Fsc_finalFormula} is exactly the average number of loops of length $\ell$ in a RRG of connectivity $c$. Therefore, the coefficient $ f_1$ of the $O\left(\frac{1}{N}\right)$ correction can be expressed as a sum over all the loops in a graph, each one contributing with the amount $\Delta\phi_\ell$ to the free energy. We call $\Delta\phi_\ell$ a free energy shift since it is the free energy difference observes in a infinite tree after the addition of a single loop of size $\ell$, as we will argue in the next Section.

It is yet to be investigated the relation between  \eqref{eq:Fsc_finalFormula} for $f_1$ and an analogous result that one could  derive using the loop calculus formalism \cite{Chertkov2006, Chertkov2006a}.

We notice that the loops considered here are  defined as non-self intersecting closed paths. In fact, self-intersecting loops would give a contribution of order  $O(1/N^2)$ to the average free energy for simple combinatorial arguments.

\section{Probabilistic argument}
\label{sec:cavity}
\begin{figure*}
\includegraphics[width=\textwidth]{cavity-dia.pdf}
\caption{Pictorial representation of the argument, given in Section \ref{sec:cavity}, to compute the free energy shift due to the addition of a loop to a large tree graph. It is shown an open chain embedded in a tree graph (\textit{left}), its removal from the tree (\textit{center}) and the addition of a loop (\textit{right}).}
\label{fig:cavity}
\end{figure*}
The computation of the $O(1/N)$ correction to the free energy in the RRG ensemble can be easily done  through simple probabilistic arguments, as one realizes a posteriori analysing the final result Eq. \eqref{eq:Fsc_finalFormula} obtained with the replica formalism. In fact, as already discussed at the end of the previous Section, at the $O(1/N)$ order  loops are sparsely distributed in the graph and do not interact with each other. Therefore their contributions to the free energy  can be summed up separately and each one of them can be considered as  embedded in an infinite tree. In order to compute the free energy shift due to the presence of a loop of length $\ell$, we consider a very large random tree, with partition function $Z_{T}$, and remove the $\ell+1$ edges of an open chain of length $\ell+1$, as showed in Figure \ref{fig:cavity}. We call  $\sigma_0,\dots,\sigma_\ell+1$ the cavity spins of the new graph, that is the ones who lost one (this is the case of $\sigma_0$ and $\sigma_{\ell+1}$) or two ($\sigma_1,\dots,\sigma_{\ell}$) of their adjacent edges. We call $Z_{cav}(\sigma_0,\dots,\sigma_{\ell+1})$ the partition function of this new system, conditioned on the values of the cavity spins. Since we assumed to start from a tree graph, the partition function $Z_{cav}$ takes the form
\begin{equation}
Z_{cav}(\sigma_0,\dots,\sigma_{\ell+1})= \tilde Z e^{h_0\sigma_0+r_1\sigma_1+\ldots+r_\ell\sigma_\ell+h_{\ell+1}\sigma_{\ell+1}},
\end{equation}
where $\tilde Z\geq 0$ and the cavity fields  $h_i$ and $r_{0/\ell+1}$ are independently distributed according to $P(h)$ from \eqref{eq:cavityEq} and $R(r)$ from Eq. \eqref{eq:cavityEq_for_r} respectively. We recover the partition function of the original tree adding back the missing links, therefore we establish the relation
\begin{equation}
Z_{T}= \tilde Z\times Z^o_{\ell+1},
\end{equation}
where $Z^o_{\ell+1}$ is the partition function of an open chain of length $\ell+1$ with incoming fields $h_0,r_1,\dots,r_{\ell},h_{\ell+1}$. On the other hand, starting from the cavity graph, we can create another graph $G$ containing exactly one loop. This can be achieved adding an edge between the spin $\sigma_0$ and $\sigma_{\ell+1}$, and adding other $\ell$ edges to form a loop among the $\ell$ internal cavity spins (see Figure \ref{fig:cavity}). Notice that with this construction all the spins retain the same degree that they had in the original graph $T$. The partition function of the system defined on $G$ is then  given by
\begin{equation}
Z_{G}= A\times Z^o_{1}\times Z^c_{\ell}.
\end{equation}
We are interested in the difference of the average free energy between the system $G$ an $T$ in the large graph limit. Let us call $\mathrm N$ the number of nodes in $T$ and $G$. The free energy shift is then given by
\begin{equation}
\Delta \phi_\ell = -\frac{1}{\beta}\,\lim_{\mathrm N\to\infty}\,[\log Z_G - \log Z_T]_{\mathrm{av}}.
\label{phi1}
\end{equation}
For the average free energy $\phi^o_L$ of an open chain of length $L$ embedded in a RRG  the following relation holds\cite{Lucibello2014}:
\begin{equation}
\phi^o_L =  L\, \phi + \phi_{s},
\end{equation}
where $\phi_s$  is a site term that does not depend on $L$ \cite{Lucibello2014}. It is therefore easy to derive the expected result:
\begin{equation}
\Delta \phi_\ell= \phi^c_\ell - \ell\, \phi.
\label{phi2}
\end{equation}
We have proven that the free energy difference $\Delta \phi_\ell$ as defined by Eq. \eqref{phi1}  corresponds to the quantity $\phi^c_\ell - \ell \phi$, as it was defined in the last Section.
Taking into account that the average number of loops of length $\ell$ in a graph of the RRG ensemble is $\frac{z^\ell}{2\ell}$ in the thermodynamic limit, we re-obtain Eq. \eqref{eq:Fsc_finalFormula} without making any resort to replicas.

The argument we gave in this Section to compute the first finite size correction to the free energy is strictly limited to the RRG ensemble. In fact it relies heavily on the homogeneity of the graphs. On different graph ensembles more refined combinatorial arguments, as the one given in \cite{Ferrari2013} for Erd\"{o}s-R\'enyi random graphs, have to be used.

\section{Numerical Experiment: Spin Glass in a Magnetic Field}
\label{sec:num}

\begin{figure*}
\includegraphics[width=\textwidth]{lead_ord}
\caption{Main panel: average energy density $e(\beta)$ of a spin glass on a RRG with connectivity $c=4$,  bimodal random couplings $J=\pm1$ and uniform external magnetic field $H_{ext} = 0.7$.
 The profiles of $e(\beta)$ are drawn for different system sizes: from top to bottom $N=64, 256, 1024$. Inset: the coefficient $e_1(\beta)$ of the $1/N$ correction to the thermodynamic energy density, measured experimentally by means of Eq. \eqref{eq:diff}.
The vertical dashed lines, both in the main panel and in the inset, mark the position of the  critical point. Notice that the coefficient $e_1$ does not depend on the size $N$ only up to $\beta \sim 0.8$. Above this value there is an evident $N$-dependence, which is more and more pronounced as one gets closer to the critical point. Exactly at the critical temperature, the coefficient $e_1$ diverges when the system size $N$ goes to infinity. This divergence is the signal of the onset of a different type of scaling of the finite size corrections at the critical point and, indeed, in all the critical domain.
\label{fig:leading_order}}
\end{figure*}

\begin{figure*}
\includegraphics[width=\textwidth]{RRG_correzioni}
\caption{ Finite size corrections to the energy density of a spin glass model on a RRG with connectivity $c=4$ and bimodal random couplings $J=\pm1$. The various panels refer to different values of the external uniform magnetic field. The results obtained from Monte Carlo simulations are compared with the analytical values predicted from Eqs. \eqref{eq:Fsc_finalFormula} and \eqref{e1}. The vertical dashed lines mark the positions of the  critical temperatures.
\label{fig:correzioni}}
\end{figure*}

In this Section we test our analytical prediction for the finite size correction to the free energy, Eq. \eqref{eq:Fsc_finalFormula}, on the spin glass in a uniform magnetic field. The connectivity of the graph is $c=4$. In the experiment the couplings $J_{ij}$ are bimodal random variables, taking value $J_{ij}=\pm1$ with equal probability. We simulate the model using a parallel tempering Monte Carlo algorithm and three different values of the external field $H=0.3,0.5$ and $0.7$. For each value of the magnetic field $H$ we simulate systems of three different sizes: $N=2^6,2^8$ and $2^{10}$. The numerical estimate of the coefficient $f_1$ of the $O(1/N)$ correction is obtained as the difference between the free energies of systems of different system sizes, viz.:
\begin{equation}
2N[f(N)\ -\ f(2N)]\ = \ f_1\ +\ o(1)\ .
\label{eq:diff}
\end{equation}
The $o(1)$ term in the r.h.s. of Eq.\eqref{eq:diff} accounts for subleading corrections. These subdominant contributions become particularly important at the critical point, but also in all the critical domain (see \figurename\ref{fig:correzioni}). The situation is more involved below the critical point, where the leading corrections have a totally different scaling (no more proportional to $1/N$) and, consequently, our theoretical prediction does not hold anymore.

In order to compute the analytical estimate of $ f_1$ we proceed in two steps: we explicitly calculate the first terms of the sum. We computed by transfer matrix multiplication the partition function and the free energy of closed chain of length $\ell$, for many realizations of the disorder and up to $\ell=7$. We then resummed the remaining terms of the series using the criterion explained in Ref. \cite{Ferrari2013}, that we briefly recap.
Using the formalism of the replicated transfer matrix developed in Ref.\cite{Lucibello2014}, one can show that, in a spin glass, the dominant contribution to $ f_1$ comes from the replicon eigenvalue. Therefore, we use only the knowledge of this eigenvalue to analytically resum the remaining terms of the series (from $\ell=8$ to $\infty$).  The large $\ell$ behaviour of the shift $\Delta\phi_\ell$ is given by the  expression
\begin{equation}
\Delta\phi_\ell \sim A \lambda^{\ell} \qquad  \mathrm{for}\quad   \ell\gg1 ,
\end{equation}
where $\lambda$ is the replicon eigenvalue,  the largest eigenvalue satisfying the following integral equation:
\begin{equation}
\lambda g_{\lambda}(u) = \mathbb{E}_{J,r}\int\mathrm{d} u'\ g_{\lambda}(u') \delta[u-\hat{u}(\beta J,r+u')]
\left(
\frac{\partial\hat{u}}{\partial u}
\right)^2.
\end{equation}
Here $r$ is distributed as $R(r)$ defined in Eq. \eqref{eq:cavityEq_for_r}. The maximum eigenvalue of the integral operator in last equation can be obtained numerically by population dynamics techniques.
The coefficient $A$ instead can be computed analytically, as shown in Ref.\cite{Lucibello2014}, and takes value $A=3/(2\beta)$.
We can split the quantity $ f_1$ in two pieces:
\begin{equation}
 f_1 \sim  S(L) - \frac{3}{4\beta} \mathcal{L}\textrm{og}_{L+1}\left[
1-(c-1)\lambda
\right] ,
\end{equation}
where $S(L)$ is the partial sum over the loops up to $\ell=L$, and the second term is the resummation of the remaining series from $\ell=L+1$ to $\ell=\infty$, which we represented via the function $\mathcal{L}\textrm{og}_{p}(1-x)$, defined as:
\begin{equation}
\mathcal{L}\textrm{og}_{p}(1-x) = -\sum_{\ell=p}^{\infty}\frac{x^\ell}{\ell} .
\end{equation}
In our concrete case we can compute explicitly the first $L=7$ terms of the series, and so, the approximated analytic form of $ f_1$ is
\begin{equation}
f_1 \sim  S(7) - \frac{3}{4\beta} \mathcal{L}\textrm{og}_{8}\left[
1-3\lambda
\right] \qquad   \mathrm{for}\quad   c=4 .
\end{equation}

In a numerical simulation, measuring the energy is, actually, much simpler than the free energy (since the last one involves an estimate of the entropy). As a consequence we preferred to compare analytical and numerical results for the finite size corrections to the energy density $ e_1$. Analytically , the quantity $ e_1$ is given by the usual formula relating energy and free energy:
\begin{equation}
e_1 = f_1+\beta \frac{\partial  f_1}{\partial\beta}.
\label{e1}
\end{equation}

In Figure \ref{fig:correzioni} we show the comparison between the experiments and our theoretical result. The agreement is good at high temperatures, while it deteriorates close to the critical point. At the critical point in fact every order of the $O(1/N)$ expansion of the free energy diverges, therefore near the critical point subleading finite size corrections become increasingly important and extrapolation of $ e_1$ obtained from numerical simulations to its large $N$ limit, that can be derived by our analytical expression \eqref{eq:Fsc_finalFormula}, is difficult to achieve.

Below the critical point, the nature of the finite size corrections changes dramatically, because the replica symmetry is broken in the spin glass phase and it is widely believed that the correct solution of the model is obtained by using the Parisi hierarchical breaking pattern \cite{Parisi1987} in the same way it is used to solve the fully connected version of the model. The solution in the spin glass phase has the property to be marginally stable and the finite size corrections can be assessed by computing the volume of zero modes.
This should imply a finite size correction to the free energy density proportional to $N^{-2/3}$ below the critical point, instead of the simple $1/N$ found in the paramagnetic phase.
Another possible source of finite size corrections, of the same magnitude of the previous one, could be the existence of other solutions to the saddle point equations, which are characterized by a different replica symmetry breaking pattern. When resummed, these solutions, although thermodynamically irrelevant, can give finite size effects comparable to those generated by the integration over the Goldstone modes.

\section{Conclusions}
In this work we derived an analytical expression for the $O(1/N)$ correction to the average free energy of Ising disordered systems on random regular graphs. This correction, Eq. \eqref{eq:Fsc_finalFormula}, is expressed as a weighted sum over the loops of the graph. Each loops contributes according to the free energy shift due to its  addition to an infinite tree, as showed in  Eq. \eqref{phi1}). We compared our analytical predictions with numerical simulations on a spin glass model and obtained an excellent agreement in the region where sub-leading finite size effects are small.

We argue that the form of the  $O(1/N)$ finite size corrections, given in Eq. \eqref{eq:Fsc_finalFormula}, is independent of the specific structure of the model (namely Ising spins), as other recent works also confirm\cite{Ferrari2013}\cite{Metz2014}, but depends only on its topological features.

 Moreover it is possible to extend the formalism we presented to produce a perturbative expansion, around the Bethe free energy, for disordered systems  on finite dimensional lattices. This is currently being investigated by the authors, applying the replica method to a scheme resembling the one proposed in Ref. \cite{Vontobel2013}.

The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) / ERC grant agreement No. 247328 and from the
Italian Research Minister through the FIRB project No. RBFR086NN1.

redpajama_set_name: RedPajamaArXiv


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LEXINGTON, Ky., Oct. 15, 2018 /PRNewswire/ -- In connection with today's announcement that Sears Holdings Corporation and certain of its subsidiaries ("Sears") have filed for bankruptcy protection, Tempur Sealy International, Inc. (NYSE: TPX) is disclosing its credit exposure and sales volume related to Sears. Sears represented less than 5% of the Company's global net sales and less than $5 million of its accounts receivable exposure as of September 30, 2018.
Tempur Sealy International, Inc. Chairman and CEO Scott Thompson commented, "Our products are broadly distributed across many channels so consumers can choose where and how they wish to shop. We continue to work closely with Sears during their restructuring process while managing our related financial and operational risks."
This press release may contain "forward-looking statements," within the meaning of the federal securities laws, which includes information concerning one or more of the Company's plans, objectives, goals, strategies, and other information that is not historical information. When used in this release, the words "estimates," "expects," "guidance," "anticipates," "projects," "plans," "proposed," "intends," "believes," and variations of such words or similar expressions are intended to identify forward-looking statements. These forward-looking statements include, without limitation, statements relating to the Company's expectations regarding the impact of Sears' bankruptcy on the Company's results of operation, liquidity or financial position. Any forward-looking statements are based upon current expectations and beliefs and various assumptions. There can be no assurance that the Company will realize these expectations or that these beliefs will prove correct. The Company undertakes no obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made. Numerous factors, many of which are beyond the Company's control, could cause actual outcomes to differ materially from those expressed as forward-looking statements.


text:
Michel Lafon (né le  à Montpellier, mort le  à Grenoble) est un écrivain et universitaire français. Hispaniste, directeur de l'Institut des langues et cultures d'Europe et d'Amérique (ILCEA) au sein de l'Université Stendhal de Grenoble et membre de l'Académie argentine (Academia Argentina de Letras), il est l'auteur de nombreuses traductions.

Biographie
En 1989, Michel Lafon passe une thèse de doctorat en Études latino-américaines intitulée Recherches sur l'oeuvre de Jorge Luis Borges : écriture et réécriture à la Sorbonne sous la direction de Maurice Molho.

En 1991, il devient enseignant en littérature argentine à l' Université Stendhal (Grenoble III) puis il est nommé directeur de l'Institut des langues et cultures d'Europe et d'Amérique (ILCEA) au sein de cet établissement. Il devient également membre de l'Académie argentine (Academia Argentina de Letras) en 2010.

Œuvre
(liste non exhaustive)

Roman
 Une vie de Pierre Ménard, Gallimard, Paris, 2008 (Una vida de Pierre Menard, Barcelone 2011)

Essais
 Borges ou la Réécriture, Éditions du Seuil, 1990

 (avec Benoît Peeters): Nous est un autre. Enquête sur les duos d'écrivains, Flammarion, 2006.

Bande dessinée

Scénario
 La conjuration de Baal, d'après les personnages de Jacques Martin, en collaboration avec le dessinateur Christophe Simon (décors et couleurs de Manuela Jumet, Alexandre de la Serna et Bruno Wesel), Casterman, 2011.

Préface
 L'Invention de Morel de Jean-Pierre Mourey d'après le roman homonyme d'Adolfo Bioy Casares, Casterman, 2006.

Traductions
 Miguel de Cervantes, La Petite Gitane, Aubey, Paris 1994
 Adolfo Bioy Casares : Romans (ouvrage collectif sous la direction de Michel Lafon), traductions de Françoise-Marie Rosset, Armand Pierhal, Georgette Camille, André Gabastou, Eduardo Jiménez, Maria Inés Pavesi et Michel Lafon, collection Bouquins, Robert Laffont, Paris 2001
(avec Michèle Soriano): Jorge Luis Borges, Les Essais , CERS, Montpellier 2001
Jorge Luis Borges : Deux fictions : Tlon, Uqbar, Orbis Tertius et El Sur, PUF, Paris 2010
Adolfo Bioy Casares : Quelques jours au Brésil, Christian Bourgois éditeur, Paris, 2012
Autres traductions : il a traduit les romans suivants de César Aira : Les larmes (2000, 2007), La guerre des gymnases (2000, 2008), Un épisode dans la vie du peintre voyageur (2001), Le Manège (2003), Varamo (2005), Les nuits de Flores (2005), La princesse Printemps (2005, 2010), Le prospectus (2006), Le magicien (2006), J'étais une petite fille de sept ans (2008), La preuve (2008).

Prix
 2009 : Prix Valery-Larbaud pour Une vie de Pierre Ménard, (Gallimard)

Références

Bibliographie

Liens externes

Écrivain français du XXIe siècle
Traducteur français
Naissance à Montpellier
Naissance en avril 1954
Décès en octobre 2014
Décès à 60 ans

redpajama_set_name: RedPajamaWikipedia


text:
Intelligent systems and technology for integrative and predictive medicine: An ACP approach
Fei Yue Wang, Pak Kin Wong
Aerospace and Mechanical Engineering
One of the principal goals in medicine is to determine and implement the best treatment for patients through fastidious estimation of the effects and benefits of therapeutic procedures. The inherent complexities of physiological and pathological networks that span across orders of magnitude in time and length scales, however, represent fundamental hurdles in determining effective treatments for patients. Here we argue for a new approach, called the ACP-based approach, that combines artificial (societies), computational (experiments), and parallel (execution) methods in intelligent systems and technology for integrative and predictive medicine, or more generally, precision medicine and smart health management. The advent of artificial societies that collect the clinically relevant information in prognostics and therapeutics provides a promising platform for organizing and experimenting complex physiological systems toward integrative medicine. The ability of computational experiments to analyze distinct, interactive systems such as the host mechanisms, pathological pathways, and therapeutic strategies, as well as other factors using the artificial systems, will enable control and management through parallel execution of real and arficial systems concurrently within the integrative medicine context. The development of this framework in integrative medicine, fueled by close collaborations between physicians, engineers, and scientists, will result in preventive and predictive practices of a personal, proactive, and precise nature, including rational combinatorial treatments, adaptive therapeutics, and patient-oriented disease management.
ACM Transactions on Intelligent Systems and Technology
Computational Experiments
Interactive Systems
Length Scale
Wang, F. Y., & Wong, P. K. (2013). Intelligent systems and technology for integrative and predictive medicine: An ACP approach. ACM Transactions on Intelligent Systems and Technology, 4(2), [32]. https://doi.org/10.1145/2438653.2438667
Intelligent systems and technology for integrative and predictive medicine : An ACP approach. / Wang, Fei Yue; Wong, Pak Kin.
In: ACM Transactions on Intelligent Systems and Technology, Vol. 4, No. 2, 32, 03.2013.
Wang, FY & Wong, PK 2013, 'Intelligent systems and technology for integrative and predictive medicine: An ACP approach', ACM Transactions on Intelligent Systems and Technology, vol. 4, no. 2, 32. https://doi.org/10.1145/2438653.2438667
Wang FY, Wong PK. Intelligent systems and technology for integrative and predictive medicine: An ACP approach. ACM Transactions on Intelligent Systems and Technology. 2013 Mar;4(2). 32. https://doi.org/10.1145/2438653.2438667
Wang, Fei Yue ; Wong, Pak Kin. / Intelligent systems and technology for integrative and predictive medicine : An ACP approach. In: ACM Transactions on Intelligent Systems and Technology. 2013 ; Vol. 4, No. 2.
@article{dd91ad58fc734ca3bb77f8380b88e0ea,
title = "Intelligent systems and technology for integrative and predictive medicine: An ACP approach",
abstract = "One of the principal goals in medicine is to determine and implement the best treatment for patients through fastidious estimation of the effects and benefits of therapeutic procedures. The inherent complexities of physiological and pathological networks that span across orders of magnitude in time and length scales, however, represent fundamental hurdles in determining effective treatments for patients. Here we argue for a new approach, called the ACP-based approach, that combines artificial (societies), computational (experiments), and parallel (execution) methods in intelligent systems and technology for integrative and predictive medicine, or more generally, precision medicine and smart health management. The advent of artificial societies that collect the clinically relevant information in prognostics and therapeutics provides a promising platform for organizing and experimenting complex physiological systems toward integrative medicine. The ability of computational experiments to analyze distinct, interactive systems such as the host mechanisms, pathological pathways, and therapeutic strategies, as well as other factors using the artificial systems, will enable control and management through parallel execution of real and arficial systems concurrently within the integrative medicine context. The development of this framework in integrative medicine, fueled by close collaborations between physicians, engineers, and scientists, will result in preventive and predictive practices of a personal, proactive, and precise nature, including rational combinatorial treatments, adaptive therapeutics, and patient-oriented disease management.",
author = "Wang, {Fei Yue} and Wong, {Pak Kin}",
journal = "ACM Transactions on Intelligent Systems and Technology",
publisher = "Association for Computing Machinery (ACM)",
T1 - Intelligent systems and technology for integrative and predictive medicine
T2 - An ACP approach
AU - Wang, Fei Yue
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AB - One of the principal goals in medicine is to determine and implement the best treatment for patients through fastidious estimation of the effects and benefits of therapeutic procedures. The inherent complexities of physiological and pathological networks that span across orders of magnitude in time and length scales, however, represent fundamental hurdles in determining effective treatments for patients. Here we argue for a new approach, called the ACP-based approach, that combines artificial (societies), computational (experiments), and parallel (execution) methods in intelligent systems and technology for integrative and predictive medicine, or more generally, precision medicine and smart health management. The advent of artificial societies that collect the clinically relevant information in prognostics and therapeutics provides a promising platform for organizing and experimenting complex physiological systems toward integrative medicine. The ability of computational experiments to analyze distinct, interactive systems such as the host mechanisms, pathological pathways, and therapeutic strategies, as well as other factors using the artificial systems, will enable control and management through parallel execution of real and arficial systems concurrently within the integrative medicine context. The development of this framework in integrative medicine, fueled by close collaborations between physicians, engineers, and scientists, will result in preventive and predictive practices of a personal, proactive, and precise nature, including rational combinatorial treatments, adaptive therapeutics, and patient-oriented disease management.
JO - ACM Transactions on Intelligent Systems and Technology
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M1 - 32


text:
Fryderyk (ur. ok. 965 r., zm. w 1019 r.) – hrabia Moselgau, określany także jako hrabia w Luksemburgu.

Był młodszym synem Zygfryda, uznawanego za pierwszego władcę Luksemburga, i Jadwigi, córki hrabiego Nordgau. W 1008 r., po tym gdy jego brat Henryk, hrabia w Luksemburgu i książę Bawarii, doprowadził do wyboru na arcybiskupa Trewiru kolejnego brata Adalberta, popadł w konflikt ze szwagrem, cesarzem Henrykiem II (mężem siostry Fryderyka, Kunegundy. Wygnany, pogodził się z cesarzem ok. 1012 r.

Zmarł w 1019 r., jego synowie odziedziczyli po bezpotomnej śmierci starszego brata Henryka w 1026 r. hrabstwo w Luksemburgu.

Był żonaty z Irmtrudą, córką Heriberta z Wetterau. Z tego małżeństwa pochodzili następujący potomkowie:
 Henryk, zm. 1047, hrabia Luksemburga i książę Bawarii
 Fryderyk, zm. 1065, książę Dolnej Lotaryngii
 Adalbert, zm. 1072, biskup Metzu
 Gizelbert, zm. 1056/1059, hrabia Salm i Luksemburga
 Otgiva, zm. 1030, żona Baldwina IV Brodatego, hrabiego Flandrii
 Dytrych, zm. ?
 Herman, zm. po 1075, hrabia Gleibergu, ojciec palatyna reńskiego Henryka II
 Irmtruda, zm. po 1055, żona Welfa II, hrabiego Altdorf
 Oda, zm. ?, ksieni z Lunéville
 Gizela, zm. po 1058, żona Genta z Alost

Linki zewnętrzne

Luksemburgowie
Urodzeni w X wieku
Zmarli w 1019


text:
Business selected
German unemployment rate falls to record low
Image copyright DPA
Germany's unemployment rate fell to a record low in May, while the jobless rate across the eurozone fell to 10.2% in April.
The unadjusted rate in Germany declined to 6% from 6.3% in April, the Federal Labour Office said.
That was the lowest level since German reunification in 1990.
Differences remain between the formerly divided country: it was just 5.5% in what was West Germany, but 8.4% in the once-Communist east.
The fall reflected the strength of the labour market in Europe's largest economy.
The eurozone jobless rate was down from 11% in April last year and the lowest figure for the 19 countries using the euro since August 2011, Eurostat said.
Across the 28 countries in the European Union, unemployment fell to 8.7% in April, down from 8.8% in March and 9.6% in the same month last year.
That was the lowest rate for the EU since April 2009.
However, seven countries still have double-digit unemployment, with Italy at 11.7%, Spain at 20.1% and Greece at 24.4%.
The April unemployment rate for those aged 15 to 24 was 18.8% in the EU, down from 20.7%, and 21.1% in the eurozone, compared with 22.5% in the same month last year.
Eurozone unemployment rate falls to 10.3%
Business Sections


This song is addressed to those in a blue Christmas for whatever reason. Know that it is okay and that there is support for you with holiday pain, if you look for it. This is not a carol nor does is speak of joyous celebration but for the many out there who cannot participate, there is need for a song like this.
'I don't feel merry and bright.


text:
Janet Jackson dedicates Rock Hall honor to 2-year-old son: 'You are my life'
Janet Jackson had the sweetest message for her 2-year-old son at Friday's Rock and Roll Hall of Fame induction ceremony.
The pop icon, 52, gave birth to Eissa Al Mana in January 2017, her first child with her now-ex-husband, Qatari businessman Wissam Al Man.
Addressing the crowd at Brooklyn's Barclays Center, Jackson said, "(Eissa) wakes me up every single morning singing his own little melodies. He's only two, you guys. I want you to know that you are my heart, you are my life, and you have shown me the real meaning of unconditional love."
After being introduced by R&B singer Janelle Monae as the "legendary queen of Black Girl Magic," Jackson thanked her fans, producers and choreographers including Paula Abdul – earning laughs when she admitted, "I never thought I was a good dancer."
More Rock Hall:Stevie Nicks won the Rock Hall 2019 ceremony by inviting Harry Styles
She spent the bulk of her speech thanking her manager dad, Joe Jackson, and brothers, whose group the Jackson 5 was inducted into the Rock Hall in 1997.
"My brothers were recognized for their musical passion by being inducted into the Rock and Roll Hall of Fame and I was so, so proud," Jackson said. "I was always crashing their rehearsals, always tagging along, always with my brothers. I recognized, along with the rest of the world, my family's extraordinary impact on popular culture.
"As the youngest in the family, I was determined to make it on my own. I wanted to stand on my own two feet," she continued, smiling. "But never in a million years did I expect to follow in their footsteps. Tonight, your baby sister has."
Jackson did not mention by name her late brother, Michael, who has been in the news recently following the premiere of HBO's explosive documentary "Leaving Neverland" earlier this month, which revisits past allegations of child sexual abuse by the King of Pop.
She also did not perform during the Rock Hall show, which was filmed for later broadcast on HBO. Backstage, Jackson posed for photos with Monae but did not answer questions from journalists.
This year's show:The 2019 Rock Hall inductees are: Stevie Nicks, Janet Jackson, Radiohead and more


I know, I know, I know . . . I'm just meddling now! Some of you only know me as the Carolyn who has lost over 100 lbs., seemingly drinking some magical potion that transformed me over night. You who weren't here to see the mess of scars and wounds that I came crawling into this website with. You may think "What could she possibly know about emotional eating" . . . well, she knows plenty.
I won't bore you with the details, but here is my short list of reasons (excuses) for emotional eating from my past: alcohol in my family, domestic violence, mental health issues, sexual molestation, son diagnosed with chronic kidney failure at age 4, miscarried a baby, losing family members to suicide, chronic depression and self loathing. This all combined into a lethal cocktail called bulimia.
Believe me, I know. I know the intentions of doing the 'right' thing and then ending up with an empty doughnut box in front of me. I know the self loathing of 'never getting it right'. I know the emotional pain that is so paralyzing that you will do anything to escape it, and turn to food to numb the pain. I know these things. I have felt these things.
BUT, there comes a time (mine was about 17 months ago), when you say enough is enough. Pain from the past can only follow me into the future if *EYE* bring them! Emotions and Food have nothing to do with each other. Emotions are feelings. Food is fuel. Why am I using fuel to medicate or numb an emotional issue?
If I could take a little creative license, think of your emotions (feelings) as toddlers and YOU (your higher intelligence, reasoning and rationale) are the adult in charge of their well being. Does a toddler know what is in it's best interested? Does a toddler get what it wants when it wants it? Does a toddler make the rules? NO!
So, why give in to the tantrums of a toddler when it comes to emotional eating?!? Why? I am blessed. I feel healed and whole for the first time in my life. I do not have the compulsion to binge, deprive or in other ways allow my feelings to manipulate what choices *EYE* (the adult) make for my health and well being.
I hear it every day from friends and people on my Fabulous Fitness facebook page . . . "It has been such a bad day, I'm stressed out, my eating is horrible" WHAT? WHAT? How does that sentence even make logical sense? Logically. Look at that sentence. It should read "It has been such a bad day (period). I am stressed (period). Those are feelings. Leave them in the feelings department. Do not choose to drag them kicking and screaming into the fueling department. They are already misbehaving! Don't give them more power! CHOOSE. YOU are the adult. A tantrum cannot manipulate you into following the will of a toddler. Even if those little toddlers are screaming "You've already made three bad choices today, just call the whole day a wash and give in." NO!!!! Make your next choice, this one, right now, the right choice for YOUR health and well being . . . because YOU are the adult . . .
. . . and YOU deserve it!
. . . tough love baby . . . .
. . . . now be a good girl and play nice . . ..
Live beautifully! Treat yourself well!
Thank you so much for this post! I feel like I just had an "aha moment". I can't tell you all the times the "toddler" ruled my food choices and EYE just stood back. No more..good choices.


Thanks for dropping by. I am a professional bookkeeper servicing businesses in Maitland, Newcastle and the Hunter Valley region. I have 14 years experience in the industry and would love to hear from you if you need help with your bookkeeper needs.
When people start a business it is usually because they have a passion to develop one of their interests. They did not start their business because they wanted to do accounts.
They don't have the time or the interest to develop their accounting skills in the same way they develop their real interests. Government regulations require businesses to keep good and accurate records.
People in this situation hire the services of an external contractor to keep their accounts in order on a time need basis.
As a bookkeeping contractor I am qualified to fulfil your day to day bookkeeping entries up to date, as well as keeping your government statutory requirements fulfilled.
My mission is to make life easy for business owners by ensuring that their accounts operate smoothly and accurately.
Accounting can be a major distraction for many business owners. When they know that everything is being looked after properly they can fully focus on expanding the business, their passion.
Backlogs and clean-ups a specialty. Resolution of past accounting anomalies. Old taxation issues reconciled and cleared.
Assistance with external and internal audits.
Insured, registered with Tax Agents Practitioner Board as a BAS agent.
My aim in bookkeeping is to give business owners peace of mind through the knowledge that their accounts are being looked after properly, so they can have the freedom to focus on what they do best.


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The Digital and Technology team, also known as #futurebarnardos, is part of the Strategy and Performance Group. We are responsible for leading a transformation of the whole charity: inspiring it to take a user-centred, data-driven approach to all our operations, products and services, and iterating from small beginnings to big ideas.
As Head of Technology Transformation, you and your team will give Barnardo's staff the tools they need to do their jobs more effectively and efficiently, by bringing a user-centric, devops approach that mirrors the standards and expectations we set for our user-facing services.
You will join our eight-strong leadership team in supporting and empowering a wide range of people and skills. You will be responsible for further hiring within their teams to make sure we have the capability and capacity we need to achieve our vision.
This role can be based at any of Barnardo's national offices: Belfast, Edinburgh, Leeds, Liverpool, Birmingham, Cardiff, London or Crawley. Regular local and national travel will be required, including to Barnardo's digital hub in London Euston.
As the Head of Technology Transformation, you will champion the digital, agile approach to product design and delivery, both internally and beyond Barnardo's. You and your team will give Barnardo's staff the tools they need to do their jobs more effectively and efficiently, by bringing a user-centric, DevOps and WebOps approach.
Barnardo's are using a digital approach to improve the lives of young people by building stronger families, safer childhoods and positive futures. This opportunity is critical to lead and own the delivery of a transformation strategy, which is fundamental to the achievement of Barnardo's 10-year Corporate Strategy. We are looking for a small group of ambitious, humble visionaries to lead our team, and inspire others across the charity and beyond to help Barnardo's meet this vision.
•	Work with senior stakeholders to shape, deliver and evolve the technology transformation strategy. This will include prioritisation, process, measurement and governance, driving a digital agile approach to product design and delivery, for of hybrid teams of internal and partner resources.
•	Provide leadership, strategic guidance, clan leadership and pastoral line management to the community of technologists across the wider Digital and Technology Team. Bring an extensive network of external, specialist technical expertise.
•	Bring proven experience of leading Technology Transformation within the public, government or private sector. Demonstrable experience of following an agile and human-centric service design methodology to produce high quality outputs.
•	With a passion for discovery, design, implementation and service wrap for end-to-end technology enabled services you will have been material to landing substantial service transformation through technology.
•	Be an able team coach and mentor for product managers and technical specialists. Build high performance teams, actively managing the performance and development of team members, and building capability against the technology strategy.


We take this opportunity to thank you for attending our training workshop on subject DIRECT CONDITION ASSESSMENT (DCA) by Pipeline Inspection and Condition Analysis Corporation, Canada (PICA) during ADB training workshop on Trenchless Technologies for Urban Projects (9th &10th August, Taj Palace Hotel, Chanakyapuri, New Delhi).
We are affirmative that our condition assessment technology will prove highly valuable to the existing cast iron, ductile iron and steel water & waste water pipeline network. We at PICA offer the only Direct Condition Assessment technology that can provide complete and accurate profiles of their pipe wall thickness condition.
We once again thank you for your attendance and valuable questions during the training. It would be our pleasure to discuss your operational challenges with metallic pipe in water & wastewater systems in your region when & as there is an opportunity.
Ankit Vajpayee of Russell writes an article on "Using a Robotic System to Inspect Boiler Tubes" on AWS.org.
Followed by the activities in Feb 2011. Russell Technologies India organized a Certified Installers Training Course at their offices in Lucknow, India. Mr. Elvin Loyd and Ankit Vajpayee successfully delivered the theory and practical sessions of this course. The benefitted attendees (total 15) were engineers from local oil companies and inter company employees. We take a moment and thank the attendees for their participation. With their positive feedback and encouragement, we certainly look forward to organizing another training course - schedule of which will be announced soon.
Russell Technologies India & WrapMaster Corporation resumed to the Phase II Burst test followed by Phase I conducted in June 2010 where the repaired spool sustained the pressure upto 200 kg/sq.cm. This time (during Phase II) the oil company wishes to test the repaired spool beyond 300 kg/sq.cm.
January 2011 - Another course on RFT - this time in Dubai, United Arab Emirates.
Ankit Vajpayee delivers a 40 hrs course on RFT in compliance with SNT-TC-1A. The course was conducted at the host facilities of SilverWing Middle East in Al-Quoz, Dubai. Students demonstrated their NDT experience and knowledge during the course.
DECEMBER 2010 - Dubai, UAE - Business Meeting with SilverWing Middle East (SWME).
Ankit Vajpayee, (RTI) met along with Mr. Alan Ashton (SWME) to discuss the business strategies for the year 2011.
RTI would like to thank Mr. Alan Ashton for his support time and hospitality during Ankit's visit to his region.
NOVEMBER 2010 - Russell Technologies India (RTI) in full attendance at NDE 2010 Kolkata, India.
RTI Delegates Upendra and Ankit attended as delegates and speakers at NDE 2010 Annual Conference jointly organized by ISNT's Kolkata and Jamshedpur Chapters.
A technical paper titled "Managing Leaks from Corroded Pipelines with the proactive plan to detect, size and repair thinned sections in advance of failure" was also presented in Electromagnetic Inspection Technique Session. Case studies on deployment of Inline Inspection Tools based on Remote Field Technique was also discussed during the paper presentation. The paper was attended with high interest by professionals from Provincial Municipality, NDT Service Companies & various other organizations.
Russell Technologies India Pvt. Ltd. (RTI) is pleased to announce that they have been appointed as the Exclusive Distributor for Acoustic Control Systems in the Indian region as an expansion to the successful cooperation in Canada & North America between Russell NDE Systems Inc, Canada and Acoustic Control Systems, Russia.
Acoustic Control Systems is the world's leading manufacturer of Ultrasonic Testing Equipment used for both conventional and advance application to identify corrosion and pitting.
Please feel free to contact us at info@russelltech-india.com if you have questions.
Environmental and personal safety issues have created the need for more effective preventive planning on oil pipelines. For companies operating these pipelines, a leak, no matter how insignificant it might seem, can result in major liabilities. As such, pipeline operators are increasingly concerned with monitoring the performance of pipes that are becoming fatigued and weak. According to figures published by the U.S. Department of Transportation's Pipeline and Hazardous Materials Safety Administration (PHMSA), as much as 30 percent of all pipeline failure incidents reported was caused by corrosion.
We are pleased to announce the strategic alliance between Russell Technologies India Pvt. Ltd. (RTI) and NTPC-ALSTOM Power Services Pvt. Ltd. (NASL). Both RTI and NASL have jointly and exclusively agreed to introduce and develop the market in Power Sector within India, Bangladesh, Sri Lanka and Pakistan for RTI's specialized & proprietary service "Automated Condition Assessment of Boiler Water Wall Tubes using Electromagnetic Technique coupled with Robotics (using VERTISCAN SYSTEM)".
It is with great pleasure to announce the revival of the Edmonton Association of Technical Societies (EATS). With the joint effort of nine local technical societies, the EATS will provide one annual dinner meeting of common interest, and an exceptional networking opportunity. Our affiliate technical societies include ASME,ASQ, AWS, ASM, CSCE, CWA, NACE, SME, and STLE.