... log as the most up to date ‘‘truth’’ about the state of the data on disk. The main difference is that database systems do not use the log as the final repository for data: a separate data area is ... purpose. The separate data area of these database systems means that they do not need the segment cleaning mechanisms of the Sprite LFS to reclaim log space. The space occupied by the log in a database system ... The bandwidth of each of the five phases is shown separately. Sprite LFS has a higher write bandwidth and the same read bandwidth as SunOS with the exception of sequen- tial reading of a file that...
Ngày tải lên: 12/09/2012, 15:05
The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
... in nature to a data manager which fails to free data, but is easier to detect and prevent. • Data manager changes data. A malicious data manager may change the value of its data on each cache refresh. ... data. It is usually made in response to a pager_data_request call made to the data manager by the kernel. Typical data managers will only provide data upon demand (when processing pager_data_request ... it initiates a cache replacement. A data manager may restrict the use of cached data by issuing a pager_data_lock request, specifying the types of access (any combination of read, write, and execute)...
Ngày tải lên: 12/09/2012, 15:05
List the components of a radio system
... slots – Each user is assigned the entire frequency for the transmission • For a fraction of time on a fixed, rotating basis – Advantages • Uses the bandwidth more efficiently • Allows both data and ... communication today • Except for broadcast radio and television • Half-duplex transmission – Sends data in both directions • But only one way at a time – Used in consumer devices such as citizens band ... 25 Signal Strength (continued) 19 Multiple Access (continued) • Code Division Multiple Access (CDMA) (continued) – Advantages • Can carry up to three times the amount of data as TDMA • Transmissions...
Ngày tải lên: 13/09/2012, 10:52
Cambridge.University.Press.Africans.The.History.of.a.Continent.Aug.2007.pdf
... concrete rather than abstract; each moral quality was personified as a deity; no truly historical sense emerged; learning consisted of a gigantic catalogue of names and attributes; and the law was not codified. ... lineages of mitochondrial DNA exist among the San (‘Bushmen’) of southern Africa and the Biaka Pygmies of the modern Central African Republic. About 100,000 years ago, some of these anatomically ... 20,000 years ago, appeared at that date also in southern Africa, spread into western and northern Africa during the next 10,000 years, and thereafter became ubiquitous. Arrow-heads, appearing about...
Ngày tải lên: 21/09/2012, 10:39
Guest the meaning of a word
... hurl, cast)]. offer: ob-và ferre [Gồm các biến dạng fer và lat (Latin: line, bring, carry)]. insist: in-và stare [Các biến dạng c a stare là sta, stat, sti, và sist (Greek: standing, stay, make ... guest the meaning of a word Could you guest the sign of a new word? Yes, Of couse. This is 20 prefix and 14 root-word helping you improve your vocabulary. You can guest the meaning of 14.000 ... talk, speech, speak; word)]. aspect: ad-và specere [Gồm có 2 dạng spec và spic (Latin: see, sight, look, appear, behold, and examine)]. uncomplicated: un-, com-,và plicare [Có 11 biến dạng sau:...
Ngày tải lên: 02/10/2012, 12:07
Báo cáo y học: "Pre-hospital intubation by anaesthesiologists in patients with severe trauma: an audit of a Norwegian helicopter emergency medical service"
... time of arrival, time of departure and time patient care is ended), vital parameters, patient data, applied interven- tions, drugs used and a brief summary of the mission. The charts also allow ... Data Service approved the collection and recording of the study data. Statistics Data were recorded into a database designed with File Maker (FileMaker Inc., Santa Clara, CA, USA). We used Table ... (quality of airway man- agement) and whether ETI attempts were successful and without major complications (patient safety). Materials and methods Stavanger HEMS The Stavanger HEMS is part of...
Ngày tải lên: 25/10/2012, 09:56
Báo cáo y học: " Implementation of a new emergency medical communication centre organization in Finland an evaluation, with performance indicators"
... this article as: Lindström et al.: Implementation of a new emergency medical communication centre organization in Finland - an evaluation, with performance indicators. Scandinavian Journal of Trauma, Resuscitation ... emergency medical call centre organization reform in Finland. Material and methods A retrospective observational study was conducted in the EMCC in East and Central Uusimaa, an area of southern Finland ... [8]. Performance indicators The identification and development of the performance indicators was based on two presumptions made by the Lindström et al. Scandinavian Journal of Trauma, Resuscitation and...
Ngày tải lên: 25/10/2012, 10:02
Báo cáo y học: "The Impact of a Nationwide Antibiotic Restriction Program on Antibiotic Usage and Resistance against Nosocomial Pathogens in Turkey"
... ra- tionale after the initiation of NARP. Also carbapenem resistance rates of Pseudomonas spp and Acinetobacter spp decreased correlating with decreased consump- tion of carbapenems after NARP ... consump- tion calculated by two-tailed Spearman’s coefficient (r) for non-parametric correlations. A P value of less than 0.05 was regarded as significant. Software package STATA 9.0 (USA) was ... S.aureus. Data on bacterial resistance are summarized in table 1. Changes in the consumption of given antimicro- bials for two years before and after the initiation of NARP can be seen in table...
Ngày tải lên: 25/10/2012, 11:00
Báo cáo y học: " Treatment of oroantral fistula with autologous bone graft and application of a non-reabsorbable membrane"
... Publisher. All rights reserved Case Report Treatment of oroantral fistula with autologous bone graft and application of a non-reabsorbable membrane Adele Scattarella 1 , Andrea Ballini 1 , ... Roberto Grassi 1 , Andrea Carbonara 1 , Francesco Ciccolella 1 , Angela Dituri 1 , Gianna Maria Nardi 2 , Stefania Cantore 1 , Francesco Pettini 1 1. Department of Dental Sciences and Surgery, ... Bichat's buccal fat pad to close oroantral communications in irradiated maxilla. J Oral Maxillofac Surg. 2010 Jan;68(1):229-30. 9. Hernando J, Gallego L, Junquera L, Villarreal P. Oroantral...
Ngày tải lên: 25/10/2012, 11:48
Báo cáo y học: "Gain of a 500-fold sensitivity on an intravital MR Contrast Agent based on an endohedral Gadolinium-Cluster-Fullerene-Conjugate: A new chance in cancer diagnostics"
... Publisher. All rights reserved Research Paper Gain of a 500-fold sensitivity on an intravital MR Contrast Agent based on an endohedral Gadolinium-Cluster-Fullerene-Conjugate: A new chance in cancer ... 1N-HCl and again water. The organic layer was dried over Na 2 SO 4 and evaporated. The resulting residue was chromatographed on silicagel by elution with chloroform/ethanol (9 : 1) and further ... the series of images T1 relaxation times were calculated by a non-linear fit (Leven- berg-Marquardt algorithm) of the signal amplitudes using the exponential saturation recovery relation- ship....
Ngày tải lên: 26/10/2012, 09:07
The Marketing Strategy of a multinational join stock company.doc
... basic characteristic about product, which was described by color, trademark, and the package of product. Each of the products of a multinational join stock company has a separate trademark and ... The Marketing Strategy of a multinational join stock company multinational join stock company has a certain advantage: a multinational join stock company has always kept its prices as competitive ... another main task of the department. • Financial and Accounting department: this department deals with all financial and accounting matters. Another main function is to manage the use of capital to...
Ngày tải lên: 27/10/2012, 16:51
Báo cáo y học: "Comparison of a Two-Lead, Computerized, Resting ECG Signal Analysis Device, the MultiFunction-CardioGramsm or MCG (a.k.a. 3DMP), to Quantitative Coronary Angiography for the Detection of Relevant Coronary Artery Stenosis (70%)
... MCG data and angiographic data. Fi- nally, microvascular disease, not associated with de- finable epicardial vessel lesions on angiography, re- sulting in myocardial ischemia can create a false ... that each patient was already scheduled for the reference coronary an- giography for any indication. Coronary angiographic data was recorded digitally and on cine angiographic film and was ... chronic stable angina summary article: a report of the American Col- lege of Cardiology/American Heart Association Task Force on practice guidelines (Committee on the Management of Patients with...
Ngày tải lên: 03/11/2012, 10:58
Diary of a Serial Killer
... Ever. The nearest I‘ve been to death is a flushed goldfish and a very rare rump steak at an even rarer barbeque. I don’t have many friends. In fact I have none at all apart from Tania but I don’t ... of a gold- nibbed fountain pen and blotter. Maybe now and again in biro on a scrap of A4 . It is not the physical act of writing that excites me but that cerebral soaring into a world of imagination, ... deductible? Christmas and New Year are rapidly approaching and work is really busy. There is always a huge stack of mail to deliver and we get heaps of overtime but I arrive home after work too...
Ngày tải lên: 06/11/2012, 16:14