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Sabtu, 09 Juni 2012

Aloe vera sangat bermanfaat



Aloe vera atau sering disebut lidah buaya merupakan satu dari 10 jenis tanaman terlaris di dunia yang mempunyai potensi untuk dikembangkan sebagai tanaman obat dan bahan baku industri. Berdasarkan hasil penelitian, manfaat lidah buayasangat banyak sekali. Karena tanaman lidah buaya ini kaya akan kandungan zat-zat seperti enzim, asam amino, mineral, vitamin, polisakarida dan komponen lain yang sangat bermanfaat bagi kecantikan dan kesehatan.
Menurut Wahyono E dan Kusnandar (2002), lidah buaya berkhasiat sebagai anti inflamasi, anti jamur, anti bakteri dan membantu proses regenerasi sel. Di samping menurunkan kadar gula dalam darah bagi penderita diabetes, mengontrol tekanan darah, menstimulasi kekebalan tubuh terhadap serangan penyakit kanker, lidah buaya juga dapat digunakan sebagai nutrisi pendukung penyakit kanker dan penderitaHIV/AIDS.
Lidah buaya atau Aloe vera mengandung semua jenis vitamin kecuali vitamin D, mineral yang diperlukan untuk fungsi enzim, saponin yang berfungsi sebagai anti mikroba dan 20 dari 22 jenis asam amino. Dan berikut adalah berbagai manfaat lidah buaya untuk kecantikan dan kesehatan, seperti dikutip dari laman kompas.
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  1. Detoksifikasi. 
    Jus lidah buaya adalah peluruh racun alami, tetapi juga mengandung beragam vitamin dan mineral yang membantu tubuh kita mengatasi stres dalam kehidupan sehari-hari.
  2. Gangguan pencernaan. 
    Lidah buaya berguna terutama pada kasus panas perut serta iritasi usus dan tukak lambung. Lidah buaya diketahui dapat menenangkan esofagus dan mengatasi refluks asam.
  3. Kesehatan mulut.
    Lidah buaya sangat bermanfaat untuk masalah mulut dan gusi, terutama dalam memperbaiki gusi yang memburuk.
  4. Perawatan kulit.
    Fungsinya juga menghilangkan jerawat, melembabkan kulit, detoksifikasi kulit, penghapusan bekas luka dan tanda, mengurangi peradangan, serta perbaikan dan peremajaan kulit (Awet Muda).
  5. Diabetes. 
    Setengah sendok jus lidah buaya yang diberikan selama 14 minggu terbukti mengurangi kadar gula darah sebesar 45 persen.
  6. Membantu gerakan usus.
    Aloe lateks mengandung antrakuinon glycosidesaloin A dan B yang bermanfaat sebagai obat pencahar yang kuat.
  7. Menjaga berat badan. 
    Jus lidah buaya telah digunakan selama bertahun-tahun untuk menurunkan berat badan.
  8. Kekebalan. 
    Lidah buaya merupakan antioksidan yang penuh kontra radikal bebas untuk meningkatkan sistem kekebalan tubuh.
  9. Luka bakar. 
    Gel lidah buaya dapat menyembuhkan dan memperbaiki kulit yang terkena luka bakar, termasuk luka bakar akibat paparan sinar matahari.
  10. Ketombe. 
    Lidah buaya dapat membantu mengurangi gatal dan menghilangkan ketombe. Lidah buaya juga bisa digunakan untuk perawatan rambut sebelum keramas.
  11. Mendinginkan kulit yang terbakar sinar matahari, terutama bagi mereka yang kerap bekerja di luar ruangan.
  12. Mengatasi masalah kulit yang disebabkan cuaca, seperti kulit kering, kemerahan, mengelupas, dan iritasi ringan atau ruam.
  13. Memudarkan warna kemerahan pada memar di tubuh.
  14. Mengatasi rasa tidak nyaman yang disebabkan alat cukur.
  15. Mengatasi luka bakar ringan.
  16. Meredakan kulit yang melepuh.
  17. Dapat digunakan sebagai krim anti penuaan dini atau untuk mengatasi keriput.
  18. Mengobati ruam akibat terkena getah tanaman.
  19. Mengatasi rasa gatal akibat gigitan serangga.
  20. Gunakan setiap hari untuk memudarkan bekas luka dan strecth mark, garis-garis putih atau merah akibat kehamilan.
  21. Merawat luka kecil akibat teriris pisau atau tergores.
  22. Memudarkan bintik bintik kehitaman pada kulit.
  23. Dapat berguna sebagai pengganti kondisioner dan jelly untuk rambut.
  24. Bisa digunakan untuk mengurangi jerawat.
  25. Digunakan untuk mempercepat penyembuhan sariawan.
  26. Dapat digunakan sebagai body lotion alami.
  27. Untuk meredakan otot yang keram atau menegang.
  28. Digunakan untuk mengurangi keluhan pada masalah gusi.
  29. Mengurangi ketombe pada kepala.
  30. Mengatasi kutu air.
Dari berbagai manfaat lidah buaya bagi kesehatan dan kecantikan diatas, ternyata masih banyak sekali manfaat lain dari lidah buaya.
Adapun jenis tanaman ini banyak ditemukan di daerah subtropis dan tropis seperti Afrika Selatan, Amerika Latin serta di Indonesia.
Mengingat begitu banyaknya manfaat yang terkandung dalam lidah buaya, maka sangat di anjurkan bagi kita untuk menanam jenis tanaman ini. Selain mudah perawatannya, lidah buaya juga dapat di tanam dimana saja, misalnya di depan rumah, taman yang tentunya tidak harus memiliki lahan yang luas untuk menanam lidah buaya.
sumber :

Sekilas Tentang Google TV



             Google Tv merupakan suatu platform Smart Tv dari Google yang pertama kali diumumkan pada tanggal 10 Mei 2010. pada saat peluncurannya  Google Tv dikembangkan bersama dengan beberapa produsen hardware yaitu Intel, Sony, dan Logitech. Kemudian semakin berkembang hingga terwujudlah suatu sistem Android yang dipadukan versi  Linux dari browser Google Chrome (untuk selancar web melalui televisi) dan Adobe Flash 10.1 sehingga tampilannya lebih interaktif. Jadi, Google TV adalah suatu sistem televisi yang menggabungkan dengan internet dalam suatu kolaborasi sistem. Jadi,,,kita dalpat melihat acara televisi sekaligus dapat mengakses internet. Keren kan.... :)
            Untuk megakses Google TV ini kita harus memiliki perangkat TV khusus yang dihubungkan dengan  Google Box yang dapat memungkinkan kita untuk dapat mengakses web dan mengunduh beberapa aplikasi. Google Tv ini dibangun dengan basis Open source yaitu Android dan Chrome. Ponsel Android dan juga iPhone dapat dijadikan remote control untuk Google Tv dan jika tidak menggunakan ponsel juga terdapat controllernya.


               Di Google TV ini banyak layanan yang dapt kita nikmati seperti akses web, download video,music, dan kita dapat melihat berbagai chanel tv, selain itu ... kita juga dapat mengakses berbagai jejaring sosial seperti facebook, twitter, dll. Google TV ini dilengkapi dengan fitur "search" dimana kita dpat mencari video, chanel tv, dan juga berbagai aplikasi yang kita inginkan.berbagai fitur lain yang tersedia yaitu Netflix, Pandora radio, Amazone on demand, Napster, Google Chrome,Twitter,Facebook, NBA Game time,dll. Hanya cukup mengetik apa yang akan kita cari GoogleTv akan menemukannya....Pinter banget ya..?!Google tv membuat tv anda pintar dan mudah digunakan jadi anda bisa cepat menemukan siaran yg anda suka dan banyak waktu untuk menontonnya.


Google Tv VS Apple TV :




  
Features

Google TV

Apple TV

Set-top Box
Akan tersedia tetapi juga di pre-instal pada TV Sony baru dan Blu-Ray Player. Mungkin akan banyak dijumpai di masa yang akan datang.
Ini hanya sebuah kotak set top dengan beberapa steker di bagian belakang. Hanya tersedia dari Apple.
Web Browsing
Tujuan keseluruhan melalui Google Chrome yang dikembangkan dan integrasi dari web dan TV.
Kita akan membutuhkan untuk meng-hack­ dan tidak melakukan peningkatan software.Dapat menghanguskan garansi.
Program Discovery
Kita dapat mencari dan menemukan pertunjukan dan channel individual pada TV Broadcast sebaik pada Google Listen & Watch serta fitur Explore untuk video podcast.
Pencarian film oleh aktor dan direktur yang disewa atau dibeli melalui iTunes.
Personal Video Recording
Dapat menemukan pertunjukan, merekamnya dan kemudian mem-browsing-nya .
Memungkinkan kita meng-hubungkan unit ke computer dan melakukan semua penjadwalan, merekam disana dan kemudian memasukkan ke iTunes.
Content Purchasing
Jika ini dapat diakses degan web, seperti Amazon, Shoutcast, Rhapsody, Hulu, Vevo, atau apapun, ini dapat diakses di GTV. Youtube juga akan menawarkan pembayaran (pay-per-view) film jika mempunyai cara ini.
Meskipun kita telah mempunyai iTunes, iTunes U dan audible.com bahkan tidak cocok. Youtube dapat digunakan, tetapi membutuhkan waktu lama.
Subtitles
Subtitle, judul bagian dan judul bagian Terjemahan Google.
Judul bagian didukung. Subtitle tidak didukung untuk Apple TV kebanyakan atau konten iTunes. Mungkin akan harus meng-gabungkan subtitle dengan video untuk melihat.
Non-video content
Foto, musik, website, game dan App Google Android , dan Flash.
Audio di AIFF atau WAV, foto (JPEG. BMP, GIF, TIFF, PNG)
Video formats
Jika kita dapat memainkannya di sebuah browser atau Flash, ini dapat dimainkan pada GTV. ini akan berlaku untuk Silverlight juga.
H.264 tetapi tidak H.264 aspek rasio sampel (saat ini). Sampai 720p (dukungan 1080i dan 1080p dihapus pada versi baru). Tidak cukup kuat untuk Silverlight.
Video Resolution
Berkemampuan HD penuh, jika TV kita mendukungnya (hal baru dengan perkembangan GTV pasti akan ada)
Resolusi maksimal 720p pada 24 frame tiap detik atau MPEG-4 pada 432p dan 30 frame tiap detik. Audio ditulis di AAC, MP3, Apple Lossless, AIFF atau WAF.
Video Output
HDMI dan pilihan lain akan tersedia ketika dibutuhkan.
HDMI, komponen video, (tidak termasuk kabel)
User Interface
Pengalaman TV personal melalui homescreen yang dapat diatur sesuka kita. Mengoreksi dan menakses channel, pertunjukan dan website favorit.
Software baris depan untuk Max OS X 10.5. disusun dalam 6 grup : Movies, TV shows, Music, Youtube, Podcasts, dan Photos.
TV compatibility
Dapat digunakan dengan kemampuan  yang rendah / terbelakang.
Tidak dapat digunakan dengan TV lama kecuali 480i didukung dengan kemampuan video komponen. Gabungan RCA/ dan konektor F/RF tidak termasuk.
Hardware Partners
Sony (TV and Blu-Ray), Logitech (Universal Remotes, companion boxes), Intel (CPU power)
N/A
Hardware Specifications
Wi-Fi, Ethernet, HDMI dari kabel / kotak satelit, integrasi spesial Dish TV, CPU kuat dan DSP terdedikasi, keyboard dan alat penunjuk. Belum disebutkan tentang kapasitas penyimpanan.
802.11 b/g/n, Airport, 10/100 Ethernet - New Apple TV dikabarkan hanya mempunyai 16 GB memori internal dasar.
Flash Compatibility
Penuh (seperti terlihat pada pengumuman Google I/O)
None.

Remote Control
Remote, Smartphone Android (dapat memasukkan halaman web dari HP ke TV), Protokol remote kontrol IP akan secara bebas diakses untuk app pada berbagai ketentuan dasar.
Remote kontrol standar hanya kontrol volume untuk musik. Remote standar Inframerah dapat dipasangakan ke perangkat. App remote berdasarkan Wi-Fi pada iPhone, iPod Touch, iPad.

Software
Android 2.1 (dapat ditingkatkan), Google Chrome, Flash 10.1 plugin, Android Apps (dapat ditampilkan dari Web ke TV). Android market dan Google TV SDK untuk mengikuti penerbitan. Web dan TV API akan menyediakan kita mengakses TV content dari Web. Youtube Leanback, Google Listen and Watch
iTunes syncing capabilities and iPhone Remote app.
Subtitles
Digabungkan Google Translate dengan pencarian Judul bagian pada  TV untuk subtitle multi-bahasa

Mempunyai Judul bagian  Caption Option tetapi subtitle tidak tersedia untuk konten iTunes kebanyakan.
Developer Friendliness
Akan menjadi android dan chrome yang open source,
Pembuatan dan penggunaan app di kabarkan segera ada
Audio
Hardware dapat mengatasi dan menawarkan video tergantung pengaturan dari home theater
The chipset mendukung 7.1 Surround dan beberapa rental mempunyai Dolby Digital 5.1 surround. Digital optical audio, RCA analog.



Nah...selain memiliki kelebihan Google Tv juga memiliki kekurangan misalnya pastinya harganya mahal, kita juga membutuhkan jaringan internet yang terus - menerus dan kuat, dan sayangnya di Indonesia jaringannya tidak cukup kuat.

Nah cukup dulu ya infonya,,,^_^




http://id.wikipedia.org/wiki/Google_TV diakses hari sabtu tanggal 26 November 2011 pukul  15.00 wib
http://www.google.com/tv/ diakses hari sabtu tanggal 26 November 2011 pukul 15.00 wib
http://google-tv.bz/ diakses hari sabtu tanggal 26 November 2011 pukul 15.00 wib
http://atlantisnetwork.blogspot.com/2010/12/cara-mendapatkan-google-tv.html

http://www.blogcdn.com/www.engadget.com/media/2010/10/2010-10-29googtvp.jpg
http://www.geeky-gadgets.com/wp-content/uploads/2012/04/sony-google-tv.jpg



Selasa, 05 Juni 2012

Gram positive coccus

Gram positive bacteria: are those that are stained dark blue or violet by Gram staining. This is in contrast to Gram-negative bacteria, which cannot retain the crystal violet stain, instead taking up the counterstain (safranin or fuchsine) and appearing red or pink. Gram-positive organisms are able to retain the crystal violet stain because of the high amount of peptidoglycan in the cell wall. Gram-positive cell walls typically lack the outer membrane found in Gram negative bacteria.



 Characteristics

  • cytoplasmic lipid membrane
  • thick peptidoglycan layer
  • teichoic acids and lipoids are present, forming lipoteichoic acids, which serve to act as chelating agents, and also for certain types of adherence.
  • capsule polysaccharides (only in some species)
  • flagellum (only in some species)
  • if present, it contains two rings for support as opposed to four in Gram-negative bacteria because Gram-positive bacteria have only one membrane layer.
  • The individual peptidoglycan molecules are cross-linked by pentaglycine chains by a DD-transpeptidase enzyme. In gram-negative bacteria, the transpeptidase creates a covalent bond directly between peptidoglycan molecules, with no intervening bridge.
Both Gram-positive and Gram-negative bacteria may have a membrane called an S-layer. In Gram-negative bacteria, the S-layer is attached directly to the outer membrane. In Gram-positive bacteria, the S-layer is attached to the peptidoglycan layer. Unique to Gram-positive bacteria is the presence of teichoic acids in the cell wall. Some particular teichoic acids, lipoteichoic acids, have a lipid component and can assist in anchoring peptidoglycan, as the lipid component is embedded in the membrane.
Classification
  • Along with cell shape, Gram staining is a rapid diagnostic tool of use to group species of Bacteria. In traditional and even some areas of contemporary microbiological practice, such staining, alongside growth requirement and antibiotic susceptibility testing, and other macroscopic and physiologic tests, forms the full basis for classification and subdivision of the Bacteria (e.g., see Figure, and pre-1990 versions of Bergey’s


  •  such, historically, the kingdom Monera was divided into four divisions based primarily on Gram staining: Firmicutes (positive in staining), Gracillicutes (negative in staining), Mollicutes (neutral in staining) and Mendocutes (variable in staining).
  • Since 1987 and the seminal 16S ribosomal RNA phylogenetic studies of Carl Woese (Department of Microbiology, University of Illinois) and collaborators and colleagues, the monophyly of the Gram-positive bacteria has been challenged, with striking productive implications for the therapeutic and general study of these organisms. Based on molecular studies of 16S sequences, Woese recognised 12 bacterial phyla, two being Gram-positive: high-GC Gram-positives and low-GC Gram-positives (where G and C refer to the guanine and cytosine content in their genomes),which are now referred to by these names, or as Actinobacteria and Firmicutes. The former, the Actinobacteria, are the high GC content Gram-positive bacteria and contains genera such as Corynebacterium, Mycobacterium, Nocardia and Streptomyces. The latter, the Firmicutes are the “low-GC” Gram-positive bacteria, which actually have 45%–60% GC content but lower than that of the Actinobacteria,.The Firmicutes contain the well-known genera that are majority of Gram-positives of medical interest: Staphylococcus, Streptococcus, Enterococcus (cocci), Bacillus, Clostridium and Listeria (bacilli/rods). This group also been expanded to include the Mycoplasma, or Mollicutes, bacteria-like organisms that lack cell walls and cannot be Gram-stained, but appear to have derived evolutionarily from such forms.
  • Despite the wide acceptance and practical record of utility of the new molecular phylogeny, a small group, including Cavalier-Smith, still treat the Monera as a monophyletic clade and refer to the group as division “Posibacteria”.
  • It is worth stressing here that the description of bacteria as Gram-positive or Gram-negative is ambiguous as it can refers to three distinct aspects (staining result, cell-envelope organization, taxonomic group), which are not necessarily meet at once for some bacterial species.When referring to the type of bacterial cell enveloppe, the terms of monoderm and diderm bacteria are much more appropriate, where the diderm bacteria can even be further differentiated between diderm–LPS and diderm–mycolate, at least
Pathogenesis
  • Most pathogens in humans are Gram-positive organisms. In the classical sense, six Gram-positive genera are typically pathogenic in humans. Two of these, Streptococcus and Staphylococcus, are cocci (sphere-shaped bacteria). The remaining organisms are bacilli (rod-shaped bacteria) and can be subdivided based on their ability to form spores. The non-spore formers are Corynebacterium and Listeria (a coccobacillus), whereas Bacillus and Clostridium produce spores. The spore-forming bacteria can again be divided based on their respiration: Bacillus is a facultative anaerobe, while Clostridium is an obligate anaerobe.

sumber :
http://laboratory-testing.org/gram-positive-bacteria/

Sabtu, 02 Juni 2012

What is Tuberculosis ??


Tuberculosis (TB) is caused by bacteria (Mycobacterium tuberculosis) that most often affect the lungs. Tuberculosis is curable and preventable.
TB is spread from person to person through the air. When people with lung TB cough, sneeze or spit, they propel the TB germs into the air. A person needs to inhale only a few of these germs to become infected.
About one-third of the world's population has latent TB, which means people have been infected by TB bacteria but are not (yet) ill with disease and cannot transmit the disease.
People infected with TB bacteria have a lifetime risk of falling ill with TB of 10%. However persons with compromised immune systems, such as people living with HIV, malnutrition or diabetes, or people who use tobacco, have a much higher risk of falling ill.
When a person develops active TB (disease), the symptoms (cough, fever, night sweats, weight loss etc.) may be mild for many months. This can lead to delays in seeking care, and results in transmission of the bacteria to others. People ill with TB can infect up to 10-15 other people through close contact over the course of a year. Without proper treatment up to two thirds of people ill with TB will die.

Who is most at risk?

Tuberculosis mostly affects young adults, in their most productive years. However, all age groups are at risk. Over 95% of cases and deaths are in developing countries.
People who are co-infected with HIV and TB are 21 to 34 times more likely to become sick with TB (see TB and HIV section). Risk of active TB is also greater in persons suffering from other conditions that impair the immune system.
About half a million children (0-14 years) fell ill with TB, and 64 000 (a range of 58 000 to 71 000) children died from the disease in 2010.
Tobacco use greatly increases the risk of TB disease and death. More than 20% of TB cases worldwide are attributable to smoking.

Global impact of TB

TB occurs in every part of the world. In 2010, the largest number of new TB cases occurred in Asia, accounting for 60% of new cases globally. However, Sub-Saharan Africa carried the greatest proportion of new cases per population with over 270 cases per 100 000 population in 2010.
In 2010, about 80% of reported TB cases occurred in 22 countries. Some countries are experiencing a major decline in cases, while cases are dropping very slowly in others. Brazil and China for example, are among the 22 countries that showed a sustained decline in TB cases over the past 20 years. China, in particular, has made dramatic progress in TB control. Between 1990 and 2010, the TB death rate in the country fell by almost 80% and the total number of people ill with TB dropped by half.

Symptoms and diagnosis

Common symptoms of active lung TB are cough with sputum and blood at times, chest pains, weakness, weight loss, fever and night sweats.
Many countries still rely on a long-used method called sputum smear microscopy to diagnose TB. Trained laboratory technicians look at sputum samples under a microscope to see if TB bacteria are present. With three such tests, diagnosis can be made within a day, but this test does not detect numerous cases of less infectious forms of TB.
Diagnosing MDR-TB (see Multidrug-resistant TB section below) and HIV-associated TB can be more complex. A new two-hour test that has proven highly effective in diagnosing TB and the presence of drug resistance is now being rolled-out in many countries.
Tuberculosis is particularly difficult to diagnose in children.

Treatment

TB is a treatable and curable disease. Active, drug-sensitive TB disease is treated with a standard six-month course of four antimicrobial drugs that are provided with information, supervision and support to the patient by a health worker or trained volunteer. Without such supervision and support, treatment adherence can be difficult and the disease can spread. The vast majority of TB cases can be cured when medicines are provided and taken properly.
Since 1995, over 46 million people have been successfully treated and an estimated 7 million lives saved through use of DOTS and the Stop TB Strategy recommended by WHO and described below.

TB and HIV

At least one-third of the 34 million people living with HIV worldwide are infected with TB bacteria, although not yet ill with active TB. People living with HIV and infected with TB are 21 to 34 times more likely to develop active TB disease than people without HIV.
HIV and TB form a lethal combination, each speeding the other's progress. Someone who is infected with HIV and TB is much more likely to become sick with active TB. In 2010 about 350 000 people died of HIV-associated TB. Almost 25% of deaths among people with HIV are due to TB. In 2010 there were an estimated 1.1 million new cases of HIV-positive new TB cases, 82% of whom were living in Africa.
As noted below, WHO recommends a 12-component approach to integrated TB-HIV services, including actions for prevention and treatment of infection and disease, to reduce deaths.

Multidrug-resistant TB

Standard anti-TB drugs have been used for decades, and resistance to the medicines is growing. Disease strains that are resistant to a single anti-TB drug have been documented in every country surveyed.
Multidrug-resistant tuberculosis (MDR-TB) is a form of TB caused by bacteria that do not respond to, at least, isoniazid and rifampicin, the two most powerful, first-line (or standard) anti-TB drugs.
The primary cause of MDR-TB is inappropriate treatment. Inappropriate or incorrect use of anti-TB drugs, or use of poor quality medicines, can all cause drug resistance.
Disease caused by resistant bacteria fails to respond to conventional, first-line treatment. MDR-TB is treatable and curable by using second-line drugs. However second-line treatment options are limited and recommended medicines are not always available. The extensive chemotherapy required (up to two years of treatment) is more costly and can produce severe adverse drug reactions in patients.
In some cases more severe drug resistance can develop. Extensively drug-resistant TB, XDR-TB, is a form of multi-drug resistant tuberculosis that responds to even fewer available medicines, including the most effective second-line anti-TB drugs.
There were about 650 000 cases of MDR-TB present in the world in 2010. It is estimated that about 9% of these cases had XDR-TB. Annually, about 440 000 fell ill with MDR-TB and 150 000 died due to this form of tuberculosis.
 

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