Silver Use Hybridbatteries

Lecture March 30 48th day of March 23

Con DENIS LONGHI (Mediateca Facoltà di Lettere, Università di Vercelli), abbiamo affrontato il tema:
CONTENUTI E TRASMISSIONE CONTENUTI MULTIMEDIALI

Come gestire il problema di fruizione dinamica e attiva e creare un rapporto qualità-fruizione soddisfacente.
Obiettivo delle due giornate dedicate a questo argomento è arrivare a offrire un servizio di formazione a distanza comprendendo anche la gestione di formati video e audio.

VIDEO : capire come è inteso nel digitale
Tutti i video sono composti da frames – n. di fotografie racchiuse all’interno di un sec. Nel sistema europeo, i frames sono 25/sec.

FRAMERATE : n. di frames in un determinato intervallo di tempo, solitamente un secondo (FPS). Proporzionale alla risoluzione delle nostre potenzialità percettive.
La risoluzione di tutti i video è normalmente a risoluzione 720x540 (alta definizione).
Con il Codec base di compressione, per dare un rapporto peso/qualità accettabile, si raggiungono pesi già elevati. Dunque bisogna gestire bene i pixel.

VIDEO FORMATS:
The most popular video formats to analog are PAL and NTSC.
For backward compatibility we have tried to establish a correspondence between these two formats and the new digital formats.
There are also the SIF, CIF, QCIF QCIF
, tiny size and moved within a network among users who are enjoying the same time. Used primarily for videoconferencing.

We should often operate in terms of compression , that is to be digital audio and video data in less space than the original. The compression, however, involves a loss of quality. These formats are "lossy" because they lose the original resolution.

DVAVI The format has become a standard (the same format capture and playback, using the same principle of encoding and decoding).
now is catching on the HD. Format 1920x1080 (16:9) to give the film pr0fondità. More than twice the standard resolution today.
Data rate, already compressed: 320MB/sec.
The ideal: the only instrument to use to do video capture, editing and editing.

MPEG : another type of codec

DIVX : does not degrade the image for reducing weight, keep looking for meaningful images with the resolution and try to do interpolation points of reference. E 'in the transformation of the vector graphics. E 'therefore read format but with a high quality (a movie may be in 700Mb). Close-ups are almost always well defined, the longer plans are much less defined (potentially static part).

CBR and VBR encoding
With Constant Bit Rate (CBR) the number of bits transmitted per unit of time on a channel is constant. Because the information content varies from one image to another you must keep changing the degree of compression.
Consequently the quality of the coded sequence is not constant over time and this can be a disturbing factor for the observer.
In contrast, the encoding Variable Bit Rate (VBR) the number of bits transmitted on the channel varies over time depending on the complexity of images, thereby ensuring that the perceived quality is almost constant.

Standard MPEG (compression and the representation of digital video)
There are 4 versions
latest version, MPEG-4, the objectives pursued by the standard are:
the ability to manage user data (MBR Multiple Bit Rate)
protection of copyright and illegal copies of digital content encoded
E 'attempt to develop a standard for transmitting interattiva di prodotti multimediali che incorpori audio e video.

Abbiamo poi parlato di come si compone il sistema di acquisizione, codifica, pubblicazione/archivio e distribuzione (sistemi hardware e software) e dunque di flussi audio-video in internet.
L’ultima parte della lezione è stata dedicata ad una introduzione ad un software per il montaggio video che si chiama ADOBE PREMIERE.La dispensa in ppt preparata dal docente è poi un sussidio importante per tutte le indicazioni tecniche e gli approfondimenti necessari.

Candy With The Lowest Carbs

Lesson Lesson

Nel corso della lezione di oggi, tenuta dal docente Riccardo Zanini, si è parlato di Mobile Learning.

We first summarized what has been seen in previous lessons, or what are the platforms that are used for mobile-learning and what are the services (instant messaging, wap, web, MMS, voice, sms) through which possible to dispense the contents: these are distributed through the services offered by telecom operators, in turn, the services rely on different platforms and technologies with each other in general, more complex services require more complex technologies. He then spoke of the devices (mobile phones, pocket PCs, personal digital assistants, smartphones) that are used for the use of mobile-learning, have been examined the features of the i-pod and a comparison was made between the various categories, especially in terms of weight as an index of portability, as platforms for e-learning platforms for mobile-learning there is convergence: the you can do with the eL can also be done with the ML, there was talk of the cellular networks of which there are different types depending on the service you wish to use: the type analog (with which it was not possible to transmit data or multimedia content) is passed to digital has allowed this to carry over to also voice data, hence the first SMS, it is then passed to the GSM and GPRS to this (thanks to which the can send the first MMS), the evolution of which is represented dall'EDGE (with which you can transmit data at high speed): on the basis of being able to carry around a lot more data and be able to offer richer ; dall'EDGE was then passed to the W-COMA (UMTS) to use to video call services, and finally was passed with HSDPA which can transmit data at very high speeds comparable to ADSL, but currently has a limited mobility. The WIFI is, however, a complementary technology to UMTS, you can enjoy the same multimedia services but there is not a mobility complete, is a technology for which there is no free licenses: the only thing you pay is the fixed connectivity, and has a large penetration because the manufacturers of micro processors such as Intel, have already integrated with laptops, PDAs and mobile phones; WiFi cards are also integrated on some phones (usually the latest Nokia, high end).

cellular networks have also linked to the minimum requirements of such services and which must be supported by the appropriate technology: for example, the video must have the minimum requirements that only the network can provide. Services should be divided into two broad categories:

• circuit services: are services of video, voice and messaging, so called because if there's a party that needs to communicate with another person B, the telephone operator by connecting first to second creates a communication circuit, and these services are time rate, did not technological limitations and resources are dedicated to everyone involved.
• packet services : only apply to wap or web services, for which there is a communication channel but the data required by a person to be sent from server B A broken down into packets before they receive them. For this service there are strict constraints on the quality of service (QoS) required. The QoS is defined by three main parameters: 1. latency (about the user waiting to use the service), 2. band (average speed perceived by the user), 3. session stability (probability that there is a service interruption of data transfer). charging for these services is time or volume.

As regards service coverage for the GSM / GPRS is a complete national coverage by the major operators, with possible restrictions Indoor; for UMTS coverage is instead to major cities and roads. As far as rates are concerned, however, these are differentiated by voice (time) and data (time or volume) are also possible customization of the SIM and contracts within the network company. Finally, there are a bit 'rates of time' flat ' and a fixed-mobile convergence.

Finally, he spoke of m-learning project sponsored by the European Commission as the project sponsored by Ericsson Education Dublin " From e-learning to m-learning " usable on PDAs, smartphones and mobile phones and can be consulted at:

http: / / learning.ericsson.net/mlearning2/project_one/index.html

or the project promoted by the British government (LSDA-Learning and Skills Development Agency) "m-Learning project" aimed at youngsters between the ages 16 and 22 unemployed and illiterate, available at www.m- learning.org

In definitiva, quando si parla di reti cellulari, dispositivi e servizi , si deve tener conto principalmente di queste cinque variabili: portabilità, costo, versatilità, banda e copertura.

Spondylolysis And Scoliosis

45th day 44th day of March 20

Nella lezione di oggi, tenuta dalla docente Roberta Volpato, si è parlato di “ Personalizzazione dell’apprendimento”.
Quando si parla di personalizzazione dell’apprendimento si tende a centrare l’attenzione sulle spatio-temporal characteristics and learning of the subject. The training process
should not be a mere transmission of knowledge but a construction of meaning through experience and in accordance with individual cognitive styles, in this context play a key role theories related to multiple intelligences and styles of thought, that allow customization of the training process itself.
To achieve a training effective, it must take into account and consider that there is a variety of cognitive styles, namely a set of ways to develop, manage and store and use information at different stages of the training process.
In the seventies, Howard Gardner, after a long period of research, he developed a theory based on multiple intelligences.
The underlying assumption of this theory is that " intelligence is the ability to identify and solve problems or create products within one or more cultural settings .
He questions the concept of intelligence, asserting that it is not only a linguistic and logical mathematical ability, that is, knowing how to read, write and count.
Through his studies, Gardner shows up to 7 types of intellectual skills, thus putting emphasis on certain types of responsibilities that were once overlooked and not considered.
Identified intelligences are: linguistic, musical, logical-mathematical, spatial, bodily Cinestar, interpersonal and personal.
The student is focusing on the technology in terms of multimedia and customization of the training process. In an interview with a school suggests that, through technology, is capable of appealing to individuals and taking account of the differences in each of the skills most pronounced.

The individual is not characterized by a single style, but from a profile of styles or ways of thinking. The propensity towards style rather than another can vary depending on the tasks, context and experience.
society often confuses the stili (modi di pensare) con le abilità (il modo in cui una persona fa qualcosa) attribuendo agli individui un giudizio sugli stili quando in realtà si tratta delle abilità. Gli insegnanti e i formatori devono riuscire a cogliere questa sottile differenza, così da permettere al soggetto di avere successo sia nel suo percorso formativo sia nel lavoro.
Un altro studioso di questo periodo e di queste tematiche, è Robert Stenberg. Egli pone l’accento sull’insuccesso scolastico, lavorativo e sociale e mette in discussione i parametri di valutazione e di misurazione delle prestazioni dell’individuo in una teoria detta dell’ "Autogoverno mentale".
Stenberg outlines a new perspective that places at the base of the failure is a discrepancy, incompatibility between the way of learning and characteristics of the learning environment, including how to act and the expectations of the work context. According to the scholar
we each have different mental mode, which change based on the experience and maturity of the individual, which changes with the evolution of the individual himself.
Stenberg used to the concept of the first form of government.
government has three functions: legislative, executive and judicial. According to Stenberg
the government also reflects what happens in our minds. His theory associated questi tre possibili stili di governo a 3 tipologie di persone: persone legislative, esecutive e giudiziarie. Le prime che amano fare le cose a modo loro ed essere indipendenti, le seconde che rispettano le regole e le terze che tendono a mettere in discussione le regole e il sistema.
La teoria dell’Autogoverno contempla poi 4 forme di stili di pensiero che corrispondono a modi diversi di accostarsi al mondo e alle sue problematiche: stile monarchico, gerarchico, oligarchico e anarchico. Rispetto ai livelli degli stili di pensiero esistono poi persone: global ( che ignorano i dettagli) e analitiche ( che apprezzano i problemi concreti e si soffermano sui dettagli).
Rispetto invece alle sfere degli stili di pensiero esistono persone:
interne: introverse, distaccate dal contesto sociale in cui vivono
esterne: estroverse, espansive e aperte verso la gente
rispetto alle propensioni degli stili di pensiero esistono persone:
radicali: che amano andare al di là delle regole
conservatrici: che tendono a conformarsi alle regole e alle procedure esistenti e non amano i cambiamenti.
Questa panoramiche sulla teoria delle intelligenze multiple, sul concetto di stile di pensiero e di abilità è servita per aprire la strada a molteplici riflessioni.
La ricerca in merito alle intelligenze multiple sottolineano l’importanza dell’interazione tra soggetto e contesto in cui agisce, in questa prospettiva ,grazie alla molteplicità approaches and channels of communication, new technologies and e-learning can be a border that actually opens the way for the personalization of learning.

During the lesson the teacher showed us on the Internet some courses on-line, made for some important Italian companies, used to train their employees.
We saw three examples of SIMULWARE: an online course on Privacy and Data Protection (duration 2 hours), a course on apprenticeship (to simulate in a protected environment with the help a tutor, what an employee would have found to really do its work environment) and a course that Didael which dealt with the teaching of English and Italian to foreigners.
http://www.simulware.it
http://www.didael.it

Ilene Frascione