Search results for " Collection"
showing 10 items of 710 documents
An Analysis of Flash Page Reuse With WOM Codes
2018
Flash memory is prevalent in modern servers and devices. Coupled with the scaling down of flash technology, the popularity of flash memory motivates the search for methods to increase flash reliability and lifetime. Erasures are the dominant cause of flash cell wear, but reducing them is challenging because flash is a write-once medium— memory cells must be erased prior to writing. An approach that has recently received considerable attention relies on write-once memory (WOM) codes, designed to accommodate additional writes on write-once media. However, the techniques proposed for reusing flash pages with WOM codes are limited in their scope. Many focus on the coding theory alone, whereas o…
Improving MLC flash performance and endurance with extended P/E cycles
2015
The traditional usage pattern for NAND flash memory is the program/erase (P/E) cycle: the flash pages that make a flash block are all programmed in order and then the whole flash block needs to be erased before the pages can be programmed again. The erase operations are slow, wear out the medium, and require costly garbage collection procedures. Reducing their number is therefore beneficial both in terms of performance and endurance. The physical structure of flash cells limits the number of opportunities to overcome the 1 to 1 ratio between programming and erasing pages: a bit storing a logical 0 cannot be reprogrammed to a logical 1 before the end of the P/E cycle. This paper presents a t…
Smoking cessation opportunities in severe mental illness (tobacco intensive motivational and estimate risk — TIMER—): study protocol for a randomized…
2019
There is an increased risk of premature death in people with severe mental illness (SMI). Respiratory disorders and cardiovascular disease are leading causes of increased mortality rates in these patients, and tobacco consumption remains the most preventable risk factor involved. Developing new tools to motivate patients towards cessation of smoking is a high priority. Information on the motivational value of giving the lung age and prevention opportunities is unknown in this high-risk population. In the context of community care, screening and early detection of lung damage could potentially be used, together with mobile technology, in order to produce a prevention message, which may provi…
Awareness and understanding of cancer immunotherapy in Europe.
2014
3053 Background: Use of immunotherapies in the treatment of cancer is growing and a range of new immunotherapeutic strategies are being evaluated. It is important that healthcare providers (HCP) understand these treatments and how they compare with and may complement established therapies. As part of the activities of the POINT expert group, we commissioned a survey of current awareness, attitudes and perceptions of cancer immunotherapy in Europe. Methods: From August-September 2011, 426 healthcare professionals (HCPs: oncologists, surgeons and oncology nurses) from France, Germany, Italy, Spain and the UK (~85 respondents/country) completed online interviews. Representatives of patient ad…
Hodòi. Le vie del corpo umano nella medicina ippocratica
2022
Lo studio prende in considerazione l’alto numero di occorrenze del termine ὁδός e di alcuni suoi composti (tra cui ad esempio δίοδος e περίοδος) presenti nel Corpus ippocratico, e in particolare in un gruppo di trattati (Generazione/Natura del bambino; libro IV delle Malattie; libro I delle Malattie delle donne; Ghiandole) che presentano comuni caratteristiche dal punto di vista teorico, lessicale e delle forme dell’espressione del pensiero medico scientifico. L’uso di detta terminologia per definire le “vie del corpo umano” e i fluidi che vi scorrono (in primo luogo sangue e sperma) sembra rimandare ad una concezione dell’anatomia e della fisiologia umana comune ai trattati considerati.
The Silver Voltameter: An Essential Instrument for the Definition of the Unit of Electric Current
2017
We discuss the restoration of a silver voltameter belonging lo the Historical Collection of Physics Instruments of the University of Palermo. We stress the essential role this instrument had in the definition of the unit of electric current.
"Paolo Boccone’s curious observations and the Commitment to Visual Communication of Natural History", speech at International Conference "Art and Sci…
2015
In his "Recherches et observations naturelles" (Amsterdam 1674) the botanist Paolo Boccone (1633- 1704) presents himself as an advocate of a new visual method. He was supported by Jan Swammerdam, with whom he shared his scientific observations. Boccone claims to be the first to apply microscopic dissection to figured stones, in order to distinguish accidental shapes from natural ones. Boccone, as many of the members of the scientific community with whom he corresponded, had a strong commitment to painstaking observation and visual communication, that he was able to handle on many levels. The allegorical frontispiece of "Recherches" is aimed to present a range of moral and psychological atti…
Distributed Data Collection for the ATLAS EventIndex
2015
The ATLAS EventIndex contains records of all events processed by ATLAS, in all processing stages. These records include the references to the files containing each event (the GUID of the file) and the internal “pointer” to each event in the file. This information is collected by all jobs that run at Tier-0 or on the Grid and process ATLAS events. Each job produces a snippet of information for each permanent output file. This information is packed and transferred to a central broker at CERN using an ActiveMQ messaging system, and then is unpacked, sorted and reformatted in order to be stored and catalogued into a central Hadoop server. This contribution describes in detail the Producer/Consu…
An Overview of Public Concerns During the Recovery Period after a Major Earthquake: Nepal Twitter Analysis
2016
In responding to disasters, Twitter is extensively used, both for information exchange and mapping the crisis, among citizens, and in relation to national and international humanitarian responders. This paper reports Twitter analysis aimed at identifying the most pressing issues that arose in the short term recovery phase starting about a week after the Nepal earthquake, including the heretofore neglected topic of mismatch between international relief and local cultures. Based on Twitter data collected between April 30th and May 6th 2015. 1,074,864 raw messages apparently related to the Nepal earthquake were retrieved, filtered and analyzed. This exploratory adapts established frameworks fo…
Towards Big Data: Digitising Economic and Business History
2020
This chapter describes the experiences in computational and digital history of economic and business historians who for decades have been forerunners in digital history data gathering and computational analysis. It attempts to discuss the major developments within this area internationally and, in some specific cases, in Finland in the fields of digital economic and business history. It concentrates on a number of research projects that the authors have previously been involved in, as well as research outcomes by other economic and business historians within Finland and elsewhere. It is not claimed that the projects discussed are unique or ahead of their time in the field of economic and bu…