mfioretti: cellphones*

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  1. The RBS is a lightweight, compact rectangular box fitted with an antenna, a signal amplifier and a battery, which can be carried easily and even dropped by helicopter in hard-to-reach disaster zones. It has a solar panel to charge the battery, to keep it working in places without electric power.

    An alternative communications system like this could help save lives when disasters strike by connecting survivors with rescue workers and government officials.

    The RBS has yet to be deployed on the ground, but the ITU expects it to be used in the next six to eight months in partnership with the National Disaster Management Authority and a local telecoms company.

    Saif said the RBS signal can be received within a 3 km radius, and people in the area can easily register by sending their name, occupation, age and blood group to a special number.

    "This helps generate an automatic database of people in distress, and eventually helps both the rescue and relief teams and the victims," he said.

    Pakistan has 116 million active cellular subscribers out of a total population of 185 million, according to official data.
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  2. with RePhone, we could connect modules with FPC cable/soldering/stitching/conductive ink or bread boards, which provides much more possibilities when designing. Unlike Google Ara, Rephone would broaden the open-source part to the software side.

    First, we created our RePhone system base on MTK’s SDK (Software development kit). For those who are new to programming, we provide instructions and sample codes based on different coding languages, e.g. Arduino/Lua/JaavaScript.

    For those who are familiar with programming, you can use the API (Application program interface) provided by RePhone, then you could rock RePhone inside out.

    And we will keep refining the operation system, in order to fully support Android by next year.

    In terms of cost, RePhone also has its privilage, a Rephone core with bluetooth module costs only as much as 2 McDonald meals: 12USD. And the full set of RePhone Create startup kit would only cost you 39USD
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  3. We've always thought about the mobile internet as a limited thing compared to the desktop internet, because of the constraints of hardware and network. Today, obviously, those constraints are a lot less than they were in the featurephone world, but it can still feel natural to talk of the PC as the most fully-featured version of the internet, and mobile as the place where you have to make lots of allowances for limitations of various kinds, just as for a smart watch. We make things 'mobile-first' because that's where the time and attention is, because that's where the use is and because mobile phones are in everyone's pockets and PCs (even laptops) are chained to desks, but it's still somehow a place with limits relative to the desktop.

    I'd suggest that we should think about inverting this - it's actually the PC that has the limited, basic, cut-down version of the internet.

    First, for 20 years the internet, on a PC, essentially meant a web browser, mouse and keyboard. There were other things happening around the margins, such as Skype and Spotify (and, for some people, email apps), but the web model was dominant. On a smartphone this is clearly no longer the case (which is why I sometimes call smartphones post-Netscape and post-PageRank). The interaction model is much more complex and sophisticated, and it continues to change all the time - Now, iBeacons, notifications, deep links, Apple Pay and Touch ID, keyboards and extensions and so on keep adding to and changing the options. Some of these new capabilities can get added back onto the PC, but many cannot, or arrive much later.

    Second, a smartphone knows much more than a PC did. There's an old computer science saying that a computer should never ask you a question that it should be able to work out the answer to; a smartphone can work out much more. It can see who your friends are, where you spend your time, what photos you've taken, whether you're walking or running and what your credit card is. The sensors, APIs and data that are available (with permission - mostly) to a service you want to use on a smartphone are vastly greater than for a website isolated within a web browser on a PC. Each of those sensors and APIs creates a new business, or many new businesses, that could not exist on a PC.
    Tags: , , by M. Fioretti (2015-05-17)
    Voting 0
  4. There's a great deal of psychological evidence showing that people find cell phone conversations particularly more annoying than general conversations or ambient noise. The best research on the subject, published a few years back PDF » , concluded that these calls are so distracting because our brains expend a lot of energy trying to guess what words will come next:

    Because overhearing a cellphone conversation entails access to only half of a dialogue, the speech content is less predictable than that of a full conversation.
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  5. Why are people more irritated by nearby cell-phone conversations than by conversations between two people who are physically present? Overhearing someone on a cell phone means hearing only half of a conversation—a “halfalogue.” We show that merely overhearing a halfalogue results in decreased performance on cognitive tasks designed to reflect the attentional demands of daily activities. By contrast, overhearing both sides of a cell-phone conversation or a monologue does not result in decreased performance. This may be because the content of a halfalogue is less predictable than both sides of a conversation. In a second experiment, we controlled for differences in acoustic factors between these types of overheard speech, establishing that it is the unpredictable informational content of halfalogues that results in distraction. Thus, we provide a cognitive explanation for why overheard cell-phone conversations are especially irritating: Less-predictable speech results in more distraction for a listener engaged in other tasks.
    Voting 0
  6. LCUNI metalli usati nei prodotti hi-tech, dai pc ai telefonini, nei prossimi decenni potrebbero essere difficili da reperire. Lo evidenzia uno studio della Yale School of Forestry & Environmental Studies, secondo cui è necessario riciclare elementi come cromo, tungsteno e tantalio dagli oggetti che vengono gettati via. Un'operazione spesso difficile, il riciclo, di cui i produttori dovrebbero tener conto in fase di progettazione dei dispositivi elettronici.

    Guarda l'interattivo

    I ricercatori hanno preso in esame i 62 metalli della tavola periodica. "Alcuni metalli sono disponibili quasi interamente come sottoprodotto. Non si possono estrarre appositamente ed esistono in piccole quantità", spiega Thomas Graedel, autore del rapporto pubblicato su Pnas. Per gallio e selenio c'è un rischio di disponibilità, ad esempio
    Voting 0
  7. All this has changed in recent years with the mobile phone revolution. All of a sudden, social scientists have been able to study humanity cheaply and easily on an unprecedented scale. This data has revealed detailed patterns of commuting, rhythms in cities and even ways of measuring economic prosperity.

    Today, Talayeh Aledavood at Aalto University in Finland and a few pals take this process to new levels of detail. These guys have combined the old and new approaches by gathering mobile phone data about when and where people contact each other and combining it with the information from questionnaires about the significance of the relationships people have with each other.

    The results provide a unique window into human behaviour. They show how daily patterns of communication are remarkably robust to major life changes. It also reveals fascinating detail about the way in which gender influences the resources men and women allocate to communication strategies.

    The results reveal some interesting insights. First, individuals show clear patterns of behaviour, such as making more calls in the morning compared to the evening. “In terms of call frequency at each hour of day, each individual has their distinct, persistent pattern,” they say.

    They also show that the call patterns vary throughout the day. “There are clear variations in the entropy of people » called, indicating that certain times of day (evening and night, typically) are reserved for calling specific others, whereas at other times the recipients of calls are more diverse,” say Aledavood and co.

    There is a strong difference between the genders. For example, among women, there is a much greater variation of call duration, with longer calls more likely to occur in the evening.

    What’s more, these long calls are more likely to be directed to a significant other but not a family member.
    Tags: , , by M. Fioretti (2015-03-10)
    Voting 0
  8. Se qualcuno volesse approfondire i dati sul rischio di incidenza e mortalità, qui c'è un DB sui dati per i vari tipi di cancro, Incidence/Mortality > Dual multi-bar chart: populations/sexes e questi sono i dati per quelli al cervello (circa 4 casi ogni 100.000 persone; come riferimento, per incidenti automobilistici siamo a circa 6.8 ogni 100.000, con una probabilità di decesso degli incidenti sulle strade extraurbane 5 volte superiore a quello delle strade urbane)

    Se siete sensibili al tema, Microwave news è un sito dove ho trovato sempre info interessanti. Questo articolo di Scientific American spiega in modo abbastanza divulgativo la distinzione tra radiazioni ionizzanti, non oinizzanti ed effetti terminici (che ci sono, ma sono un decimo dell'aumento di temperatura dovuta all'esposizione al sole (amanti della tintarella, siete avvertiti!)).

    Dulcis in fundo, se comunque siete preoccupati, e non andate piu' al mare e non andate piu' su strade extraurbane in auto ecc. ecc. è meglio usare un auricolare. meglio se bluetooth che ha una emissione di energia minima (togllendolo a coversazione finita) mentre l'auricolare potrebbe fare da guida d'onda.

    Oppure, collegatevi a un bel wifi in VoIP che, più le antenne sono vicine a noi, minore è la potenza necessaria per comunicare...
    Voting 0
  9. SIM cards can do more than just authenticate your phone with your carrier. Small apps can be installed and run directly on the SIM separate from and without knowledge of the phone OS. Although SIM Applications are common in many parts of the world, they are mostly unknown in the U.S. and the closed nature of the ecosystem makes it difficult for hobbyists to find information and experiment.

    This talk, based on our experience building SIM apps for the Toorcamp GSM network, explains what (U)SIM Toolkit Applications are, how they work, and how to develop them. We will explain the various pieces of technology involved, including the Java Card standard, which lets you write smart card applications using a subset of Java, and the GlobalPlatform standard, which is used to load and manage applications on a card. We will also talk about how these applications can be silently loaded, updated, and interacted with remotely over-the-air.
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  10. A new study has claimed that keeping mobile phones in trouser pockets can damage a man’s sperm count, affecting his chances of becoming a father. While the possibility that mobile phone radiation could adversely affect fertility is understandably of great interest to the public, there is no new information to be found here.
    Voting 0

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