TERSISA HANYA KELABU

Semakin hari dunia semakin membosankan
Monoton.!
Biasan cahaya pelangi kian memudar,,
Hilang terserap sejuta debu kebohongan..
Hempasan ombak kian kuat,,
Tunjukkan amarah yang begitu dalam,,
Yang selama ini dilupakan..
Getaran-getaran kian kencang dengan frekuensi yang semakin banyak,,
Seakan menuntun langkah untuk peduli,,
Untuk kembali bersahabat..
Tiupan angin semakin dingin,,
Memporakkan istana kerajaan angkuh..
Titik-titik air hujan menenggelamkan area penuh dusta
Serta kekejaman bertopeng elok,,
Yang semakin menyamarkan kebenaran..
Berbagai harapan pupus!!
Bak embun yang hilang saat mentari pancarkan kehangatannya..
Hanya kelabu yang semakin sempurna….


Ciamis. 181109
Nura Tresna

EMPAT MALAM BERSAMA INDONESIA

Indah sang fajar mengejutkan aku!
Teringat dua malam lalu aku bermimpi,, begini :
“ Indonesiaku menangis.!
Menjerit!. Merintih!. Tenggelam!. Terbakar!.
Bahkan terbuang oleh perkasanya kekuasaan!.”
Lalu,, sang bulan tersenyum
Mengisyaratkan mimpiku kemarin malam,, begini :
“ Rakyat lapar,, berteriak.!
‘Makan apa kami besok’
Dan terdengarlah suara si penguasa dengan lirih
‘Nasi basimu dan air peluhmu’ “
Kemudian,, kerlip bintang mengingatka aku pada mimpiku tadi malam,, begini :
“ Orang-orang dengan raut penuh permohonan,,
Meminta kebijakan,,
Tapi orang beraut serakah itu telah memakan habis haknya ”
Sebelum aku terlelap dan bermimpi malam ini,, aku bergumam,, begini :
“Sampai kapan Indonesiaku akan berdiri
Berjaya dengan dusta yang kian sempurna.?
Semoga sesegera mungkin kejujuran dan kepedulian itu hadir kembali
Adil sejahtera cita-cita yang kian jauh,, kan cepat kembali mendekat dan terwujud.”


Ciamis. 171109
Nura Tresna

BELAIAN DI SEPERTIGA MALAM

Mulai terlelap
Ketika hati mengajak melangkah
Perlahan…
Menuju ketenangan sempurna

Tapi mata ini enggan terbuka
Malas `tuk menitikan tetes airnya
Ku coba untuk teguhkan
Tentukan pilihan
Meski kantuk tak dapat terelakkan

Membasuh wajah teriring do’a
Lalu bersujud,, lama sekali
Dengan kantuk yang masih kurasa
Tak sadar butiran air membasah di pipi..
Mencurahkan isi hati
Mengadu segala peluh..

Kurasa belaian lembut penuh kasih di batinku
Sejuk,, Tenang sekali..

Terima kasih Tuhan atas nikmat
Di sepertiga malam-Mu…


Ciamis. 181109
Nura Tresna

5 Ways to Save the World

It’s no secret that the world’s natural resources are limited and endangered. Despite all efforts to save the world by gaining support globally for environmentally sound programs there remains some resistance. There is hope, however, in the fact that every individual can help save the world by setting a priority in their daily living activities by making ecologically sound choices. There are 5 ways to save the world ecology that are easily done by individuals no matter where they reside.
1. Recycle
Recycling is well known by people in most modern countries. Set up a home recycling center by using several boxes or bins and separate out items for recycling. Collect cardboard, plastic, glass, paper and metal in the containers. Children will enjoy your attempt to save the world in this fashion. Kids have fun helping out especially when they can dump the bins into the recycling center containers. Recycling is simple enough that even the youngest children can understand about doing the separating. Take care with disposal of your batteries and other hazardous materials to see that they get to the proper place for recycling. Extend your effort to save the world by shopping for recyclables and buying from resale stores, using libraries and rental stores.
2. Stop buying bottled water
Water is another limited resource but a necessity to have to save the world. Many people enjoy bottle water but using bottled water is not ecologically sound. Besides possible health risks, the process for making the bottles can harm the environment and waste is another problem. Bottle production requires the use of fossil fuels and toxic chemicals in the plastic bottles can harm health and leach out as pollution. Save the world by using fewer plastic liquid containers.
3. Use less gas and electricity
Another way to save the world is to use less gas and electricity. Combine errands into one trip so you drive fewer miles. Trade in a gas guzzler for a more efficient car. Carpool to work or take public transportation. Better still, walk or ride your bicycle. Your efforts to save the world help reduce larger emissions from power plants. Use energy efficient appliances and power saver settings. Replace incandescent bulbs with long lasting energy saver CFL bulbs.
4. Have a smaller carbon footprint
Do some calculations to determine your carbon footprint. With a smaller carbon footprint you create less pollution and help save the world. Go online and use one of many carbon footprint calculators that are offered to see what kind of human footprint you are creating. The carbon footprint is a method of determining what impact a human has on the environment. One way to save the world is to reduce your carbon footprint by changing your lifestyle. Much human activity causes the release of greenhouse gases including CO2 into the atmosphere which can cause global warming. You can reduce your carbon footprint by doing things like planting a tree, driving less or driving a more efficient car. Knowing what foods to buy is another way to save the world. Foods that require less processing and fertilizer are kinder to the environment.
5. Plant a tree
Another old favorite in the effort to save the world is to plant a tree. Plant many trees! Reforestation is an excellent group project and can be done in many places. Trees actually contribute more oxygen into the atmosphere than other green things like grass. As world forests are being depleted it is more important than ever to replace these giant oxygen generators. This is a save the world effort that should be done liberally at home. Make it a family occasion and plant a tree to honor each child. Help save the world by starting at home!

Topology Network

In computer networking, topology refers to the layout of connected devices. This article introduces the standard topologies of networking.
Topology in Network Design
Think of a topology as a network's virtual shape or structure. This shape does not necessarily correspond to the actual physical layout of the devices on the network. For example, the computers on a home LAN may be arranged in a circle in a family room, but it would be highly unlikely to find a ring topology there.
Network topologies are categorized into the following basic types:
• bus
• ring
• star
• tree
• mesh
More complex networks can be built as hybrids of two or more of the above basic topologies.
Bus Topology
Bus networks (not to be confused with the system bus of a computer) use a common backbone to connect all devices. A single cable, the backbone functions as a shared communication medium that devices attach or tap into with an interface connector. A device wanting to communicate with another device on the network sends a broadcast message onto the wire that all other devices see, but only the intended recipient actually accepts and processes the message.
Ethernet bus topologies are relatively easy to install and don't require much cabling compared to the alternatives. 10Base-2 ("ThinNet") and 10Base-5 ("ThickNet") both were popular Ethernet cabling options many years ago for bus topologies. However, bus networks work best with a limited number of devices. If more than a few dozen computers are added to a network bus, performance problems will likely result. In addition, if the backbone cable fails, the entire network effectively becomes unusable.
Ring Topology
In a ring network, every device has exactly two neighbors for communication purposes. All messages travel through a ring in the same direction (either "clockwise" or "counterclockwise"). A failure in any cable or device breaks the loop and can take down the entire network.
To implement a ring network, one typically uses FDDI, SONET, or Token Ring technology. Ring topologies are found in some office buildings or school campuses.
Star Topology
Many home networks use the star topology. A star network features a central connection point called a "hub" that may be a hub, switch or router. Devices typically connect to the hub with Unshielded Twisted Pair (UTP) Ethernet.
Compared to the bus topology, a star network generally requires more cable, but a failure in any star network cable will only take down one computer's network access and not the entire LAN. (If the hub fails, however, the entire network also fails.)
Tree Topology
Tree topologies integrate multiple star topologies together onto a bus. In its simplest form, only hub devices connect directly to the tree bus, and each hub functions as the "root" of a tree of devices. This bus/star hybrid approach supports future expandability of the network much better than a bus (limited in the number of devices due to the broadcast traffic it generates) or a star (limited by the number of hub connection points) alone.
Mesh Topology
Mesh topologies involve the concept of routes. Unlike each of the previous topologies, messages sent on a mesh network can take any of several possible paths from source to destination. (Recall that even in a ring, although two cable paths exist, messages can only travel in one direction.) Some WANs, most notably the Internet, employ mesh routing.
A mesh network in which every device connects to every other is called a full mesh. As shown in the illustration below, partial mesh networks also exist in which some devices connect only indirectly to others.
Summary
Topologies remain an important part of network design theory. You can probably build a home or small business computer network without understanding the difference between a bus design and a star design, but becoming familiar with the standard topologies gives you a better understanding of important networking concepts like hubs, broadcasts, and routes.