Author Archives: sara uzama

Will you keep it or delete it?

Do you ever check how many photos or apps you have on your phone? Have you ever considered managing your personal data?

Image flicker

If you answered “No” to any of these questions, you might want to rethink about your personal data storage. Most users usually do not keep track of the data on their devices until they are notified that they are running out of storage.

Personal data can be social media accounts, favourite playlists, and even credit card details. You might be surprised to find out how much personal data is shared across devices and online platforms.

It is important to “derive value from your personal data over time,” says Dr. Francesco Vitale, a PhD candidate in Human-Computer Interaction at the University of British Columbia. The process of selecting what to keep and delete could be difficult for users because of their attachment to data. If that is the case, is there any kind of technology that can help facilitate data management?

This is exactly what Dr. Vitale questioned and studied. He used a Research through Design approach to come up with the five new design concepts to analyze people’s opinions towards different approaches of keeping and discarding personal data.

Design Concepts

Patina – a visualization of how frequent the users access the data.

The age of data is shown by using a spiral. A longer spiral means more frequently accessed data. 

Patina Source: Francesco Vitale

Data Recommender – a system that tells users which data needs attention. 

This system is partly incorporated into apps like Google Photos and Files on Android.

Data Recommender Source: Francesco Vitale

Temporary Folder and Temporary App –  both with features that have an “expiration date.” 

Users can decide how long they want to keep certain folders/apps for, and it will be uninstalled automatically.

Temporary Folder Source: Francesco Vitale

Temporary App Source: Francesco Vitale

Future Filters – an app that allows the users to decide what to do with data in the future. 

The users are given choices from a set of actions and criteria in order to decide what happens to the data.

Future Filters Source: Francesco Vitale

Impact in Our Lives

The result of the study showed that opinions on managing data vary between not trusting technology vs. being open-minded about technology managing their data for them. 

Some have mentioned that they do not mind deleting their data off their devices for example, in the case of social media it is “never truly deleted, … there will always be a copy somewhere out there.” Many users store their personal data on online platforms without thinking about the consequences.

Recently, Dr. Vitale participated in a short interview that discusses his research and about how data management affects his life. 

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To further discuss the topic, Science 300 podcasters at UBC decided to cover Dr. Vitale’s research and see how data management affects the lives of students. 

(Podcast credit: Francesco Vitale, Bernice Huynh, Kieffer Silva Pinto, Sara Uzama)

With different views on the topic, perhaps data management is a subject that should be taken more seriously and further investigated. 

-Bernice Huynh, Kieffer Silva Pinto, Sara Uzama

Scientific Explanation for Paranormal Activities

Have you ever experienced paranormal activities? The black shadow standing in the dark, faint voice calling out for help, seeing your deceased-loved ones…

Source: Google image

Source: Google image

Though scary stories are enjoyed by some group of people, the existence of ghosts or spirits are highly debatable topic because of the numerous claims made by number of people that they have seen or heard ghosts.

Ghosts are scientifically impossible to exists because of its ability to do things like passing through the walls or floating in the air, and also because researches that were done on paranormal activities have found no evidence regarding the existence of ghosts.

A study conducted by Baland Jalal found that hallucination and sleep paralysis could play a role in people misunderstanding their experience as paranormal activity. During sleep paralysis, people can feel like they are levitating, having out-of-body experience, and sometimes, they see or hear another figure in the room when they are supposed to be alone. These experiences are hallucination because they are seeing things that are not really not present in reality. Sleep paralysis, on the other hand, are caused by the failure in rapid eye movement cycle. Rapid movement known as the stage of sleep where your eyes literally move rapidly. This eye movement usually happens when people are falling into or coming out of sleep, and to avoid people from acting out their dream in real life, the brain normally paralyze people’s muscles during rapid eye movement sleep. Usually brain turns off the paralysis before you wake up, however in sleep paralysis, you wake up as the paralysis is happening.

What about the case where people heard something?

Megan Fox, an American actress and model, believes in ghost after her first encounter in Mexico. In the interview she did with MTV News, she said that she heard the sound of someone coming into her hotel room and pouring coffee. However, when she decided to go see her breakfast, there was nothing. Since the sound was heard by both Megan and her nanny at the time, she says, “[she] believe[s] in everything.”

A study done by David Smailes considers this as hallucinations. He explains that pareidolia is the cause of this hallucination. Pareidolia is when we try to make sense of a pattern or an image even though there’s no meaning exists. Some examples of this could be seeing a face when looking at the front of the car or seeing a mushroom when looking at the clouds. These images are all result of pareidolia.

Since we are used to relying on our senses, when we experience hallucination, we trust our perceptions and believe it. However, sometimes what you thought you saw or heard could be your brain processing it based on what you captured with the eyes or ears. If this is hard to process, think about the time you misheard that one favorite song of yours. This is a good example of your brain giving an extra information to make sense of things that doesn’t.

 

-Sara Uzama

Better Sleep Routine Leads to Better Grades in School

Baby sleeping

Source: Google Image

During the midterm season, just as we are in right now, many students in university and high school spend countless nights staying up late to study for their upcoming examinations. Although these students obtain more hours of study giving up their sleep, the test results do not match what they hoped for.

A study done by MIT (Massachusetts Institute of Technology) professors proved that in order to have better academic performance, students need longer sleep duration, better sleep quality and greater sleep consistency.

The study was done by tracking each student’s sleep throughout an entire semester using a device called Fitbits. Since the device uses a combination of the wearer’s movement and heart-rate patterns, Fitbits were used to estimate the duration and quality of sleep. For example, to determine sleep duration, the device measures the time the wearer has not moved, in combination with signature sleep movements, such as rolling over. To determine the quality of sleep, the device measured the wearer’s heart-rate variability which shifts during transitions between different stages of sleep. Fitbits were able to determine the sleep measures, and the professor compared those results to the in-class performance, such as quizzes and midterm examination.

The findings were quite interesting because they found that most of the students who went to sleep before the certain time, which was 1:47am, had higher overall score compared to students who went to sleep after. They also found that students who woke up before the certain time, which was 9:12am, had higher overall score compared to students who went to woke up after.

They found positive correlation between mean sleep duration and overall score, which means there could be relation between longer sleep and better grade. The negative correlation between sleep inconsistency, which was measured by the standard deviation of the student’s daily sleep duration, and overall score, means there is possibility that inconsistency in sleep duration could lead to lower grade. They also found a positive correlation between the wake-up time and overall score as well. Students who woke up before 9:12am  significantly higher score than the students who woke up after.

This research also touched on the academic performance between women and men. In the article focusing on the study, Dr. Grossman, one of the researcher that conducted the study, says sleep could be the reason to why women are doing  academically better in the class compared to men.

In the end, in order for students to do well in school, they need to be able to manage the time well enough so that they can also have a good-night sleep everyday and study for the classes.

-Sara Uzama