Teaching About the Environment: Kalimantan

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With the widespread forest destruction in Central Kalimantan, a group of environmental activists is engaged in the training of primary school teachers in Katingan regency, in which environment education textbooks meant for local students are being tried out.

This program is facilitated by the Katingan regency administration in cooperation with WWF-Indonesia and relevant agencies, like the local education office, environment office and the national park management.

The training takes place in Mendawai village, Mendawai district, and Petak Bahandang village, Tasik Payawan district — both situated on the Katingan River plain bordering Sebangau National Park. Illegal logging and wildfire-causing forest damage have remained rife in the two villages. Sixty primary school teachers and principals in both districts have joined the program, which comprises class presentations, group discussions and field practice,” said Novita, 25, an activist from Lampung.

According to Novita, who graduated from Lampung University with a degree in agricultural engineering, the subjects taught concern an introduction to environmental education and various topical environmental issues such as global warming.

Nancy made it clear that the activities were designed to arouse children’s concern for and love of nature through environment education.

“This training is expected to deepen teachers’ knowledge of environment matters, which will be imparted to their students for further application in daily life,” said the WWF-Indonesia/Sebangau conservation project communication officer.

A day’s training is followed by subject presentations before class, among others in the state primary school of Tewang Kampung, which is only over a dozen meters away from the Katingan riverbank in Mendawai district. It is accessible by speedboat from the terminal of Kereng Bangkirai, Palangkaraya. The trip takes eight hours. A simple wooden stilted building, the school has about 20 students per class, mostly the children of farmers, fishermen and sawmill workers.

The new lessons given by the trainees to their first to sixth graders include water and air pollution and the importance of forests as the world’s lungs. Students are also taken to observe water springs and soil types as well as to plant trees in school yards. Dedy Mardianto, a Mekar Tani state primary school teacher, has instructed third graders to grow Galam trees to suit the generally peat covered marshy land around Katingan river.

Novita noted that this replanting practice was intended to make local children familiar with the greening activity in view of the considerable forest damage in Katingan regency due to illegal logging and wildfire. “It’s part of environment education to make them strive for improvement as soon as they notice disruption in natural conditions,” added Novi.

Local student Yanti Nurhidayanti, 12, could not help but express her delight at taking environmental studies. “I’m very happy to be taking subjects that were previously never taught in school. Outdoor instruction makes us better understand through direct observations and field trials,” said the fifth grader.

The textbook tryout and teachers’ training are also meant to improve the environment books earlier compiled by local teachers, besides gathering addition information to enrich future text content. As planned, the environment subjects will be made mandatory for the primary school curriculum in Katingan regency, Central Kalimantan.

By: Bambang Parlupi

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HSDPA High-Speed Downlink Packed Access

HSDPA improves on W-CDMA by using different techniques for modulation & coding. It creates a new channel within W-CDMA called HS-DSCH, or high-speed downlink shared channel. That channel performs differently than other channels & allows for faster downlink speeds. it is important to note that the channel is only used for downlink. That means that data is sent from the source to the phone. It isn't possible to send data from the phone to a source using HSDPA. The channel is shared between all users which lets the radio signals to be used most effectively for the fastest downloads.

HSDPA, short for High-Speed Downlink Packet Access, is a new protocol for mobile telephone data transmission. it is known as a 3.5G (G stands for generation) technology. Essentially, the standard will provide download speeds on a mobile phone equivalent to an ADSL (Asymmetric Digital Subscriber Line) line in a home, removing any limitations placed on the use of your phone by a slow connection. it is an evolution & improvement on W-CDMA, or Wideband Code Division Multiple Access, a 3G protocol. HSDPA improves the data transfer rate by a factor of at least three over W-CDMA. HSDPA can achieve theoretical data transmission speeds of 8-10 Mbps (megabits per second). Though any data can be transmitted, applications with high data demands such as video & streaming music are the focus of HSDPA.

The long-term acceptance & success of HSDPA is unclear, because it is not the only alternative for high speed data transmission. Standards like CDMA2000 1xEV-DO & WiMax are other potential high speed standards. Since HSDPA is an extension of W-CDMA, it is unlikely to succeed in locations where W-CDMA has not been deployed. Therefore, the eventual success of HSDPA as a 3.5G standard will first depend upon the success of W-CDMA as a 3G standard.

The widespread availability of HSDPA may take a while to be realized, or it may never be achieved. Most countries did not have a widespread 3G network in place as of the end of 2005. lots of mobile telecommunications providers are working quickly to deploy 3G networks which can be upgraded to 3.5G when the market demand exists. Other providers tested HSDPA through 2005 & are rolling out the service in mid to late 2006. Early deployments of the service will be at speeds much lower than the theoretically possible rates. Early service will be at 1.8 Mbps, with upgrades to 3.6Mbps as devices are made accessible that can handle that increased speed.
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