Saturday, December 20, 2014

My dirty creek

I live in Petukangan Utara, Jakarta Selatan, a district area bordered with Jakarta Barat in north side  and Tangerang in west side. When i was a child, i was about 7 - 8 years old, about 28 years ago, i like played at creek with my friends, caught fish. The water is grey-brown indicate it that the water was not so dirty most contain mud and soil. Some kind of fish could still alive in it, such as Sepat (Trichogaster trichopterus), Julung-julung (Hemiramphus brasiliensis)and rice field Crab (Paranthelpusa Convexa) . At that time, trees and empty land is still wide including water absorption area and not so many houses built if comparing today, so that waste water from household still flowed well by creek with keeping it for fish life . The creek's condition quite well in general.

At that time, with the condition is still natural, i and my friends could caught fish,went fishing, played football and other games in space area, played on trees and caught dragonflies where found a lot at that time, because trees are still a lot.

Today, the creek water is very dirty, it is black moreover when in dry season, indicate it that no fish can live there anymore. It caused by more people live here and need more houses so human have to cut trees and space area is decreased also throw waste water more than previous years . In the other hand the creek capacity is still same or maybe less because mud sediment is growing. And it causes the water is black, not a habitat anymore for fish.

Some of surrounding area on the creek especially at the picture i took, is a campus area. Previously it is land owned by people, there are fish pools and garden but today a campus bought it and change fish pools become buildings, parking area,etc.

So, what's people's loss because that change environment including creek water change from low dirty to very dirty ?.
1. Fish are gone. Means food supply is decreased.

2. Clear land water is depleted fastly. When dry season in 3 months, households start difficult  to find it, digging land deeply is a must to find clear water. Clear water from water company has not come to this area.

3. Food supply from trees such as fruits and vegetables has decreased (Especially for land owner). So everything we need must buy.

4. Temperature is higher because trees are decreased.

5. Space area for children to play and human socializing is decreased too. Children have to play in street or rent a field to play futsal for example.

What will we do to overcome that ?
Build more buildings and streets is unavoidable because human number is growing and demanding more infrastructure moreover it is in Jakarta area, center of business and government,as we know, the infrastructure development is growing fastly but there are some steps we can do to make our environment still comfort. Some of them are :

1. Plant trees although in a small land or in plant's pot.
2. Create many reservoirs to absorb more water from rain
3. Create a wide green area per subdistrict / kecamatan . Actually it is a   government task.
4. Save clear water
5. Keep clean our environment including creek and river.

So, the importance to keep our environment green means make our life and our next generation life is sustainable and keep comfort because we are so dependent with our environment. Keeping our environment is keeping life itself.

Image : By myself. My dirty creek .

References :

Thursday, April 03, 2014

How useful Master Degree in Computer Science for a Web Developer ?

This year, i am starting pursuing a master degree in Magister Ilmu Komputer (Master of Computer Science), Universitas Indonesia. I do it because my superior in IT Academy where i teach was urge me to get Master degree for keeping still eligible to teach in Higher Education institution including in my academy. Although my main job is not a lecturer but i like learning and teaching and i want try to keep interact with academy because academy is one of important source of knowledge and skill, so i try to enter University again to pursue master Degree and Alhamdulillah, this year , it is become reality.
   A master degree for a Lecturer is useful and a necessity regarding on Government provision, demanding lecturer to have Minimum Education is Master Degree.  What about for Web Developer like my main job ? How useful is it ?. Doesn't Web Developer doesn't require master degree for becoming it. An Employer or Client of Project today just need Bachelor Degree and more important thing, the web developer must be knowledgeable, skillful and have good portfolios rather than having master degree. No one require Web Developer must have Master Degree.
   Okay, today no one or almost no one require a web developer to have master degree but later if you have a higher position, like becoming a Project Manager or a Lead Developer, particularly for Big Project which come from big institution, i am sure, a master degree holder is more consider than other candidate, of course, experience, knowledge and skillful is already fulfilled.
   Another usage and the more important thing is knowledge enrichment and networking . In Master Program , like i am pursuing today, i am learning about more advanced theory in computer science, such as in Database Advanced and Machine Learning which i haven't got yet before.
  In database advanced, for example, i know  there are some index types in database, such as Be-tree and Hash Indexes. Before, i just know, database has index but what name of index, i did not know yet. Another new science i get is Machine Learning, which learn about some Algorithms to solve the problem based on data we have. They are useful and enrich my Knowledge as a web Developer, Freelance Web Developer exactly.
   A Web Developer often use Database, oftenly intermediate knowledge is enough but i am sure Advanced level is better to developing a better application.
   So, besides getting higher degree, knowledge and skill will increase, hopefully as a web developer. Networking is something useful. Knowing more people, friends and Great lecturers.
   And the last but not the least, hopefully studying continuously will become good point in The God's side

Source of Image :