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Keluarga & Teman / masalah keluarga
« on: 15 August 2014, 11:18:48 AM »
Halo... saya ingin masukan dari teman2... saya diminta ke pasar untuk membeli sayur. kadang disuru membeli ikan hidup(sekarat), kerang hidup, kepiting. Sy tidak bs menolak. Saya sangat shock wkt melihat ikan yg masi hidup langsung di sikat sisiknya n dipotong tp kepalanya masi bergerak. porsi makan untuk keluarga besar(lbh dr 10 org). Gmn sebaiknya yg hrs sy lakukan?

Kesehatan / [ASK] Positron emission tomography (PET)
« on: 08 May 2013, 10:28:28 AM »
Positron emission tomography (PET)[1] is a nuclear medical imaging technique that produces a three-dimensional image or picture of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron-emitting radionuclide (tracer), which is introduced into the body on a biologically active molecule. Three-dimensional images of tracer concentration within the body are then constructed by computer analysis. In modern scanners, three dimensional imaging is often accomplished with the aid of a CT X-ray scan performed on the patient during the same session, in the same machine.
If the biologically active molecule chosen for PET is FDG, an analogue of glucose, the concentrations of tracer imaged will indicate tissue metabolic activity by virtue of the regional glucose uptake. Use of this tracer to explore the possibility of cancer metastasis (i.e., spreading to other sites) is the most common type of PET scan in standard medical care (90% of current scans). However, on a minority basis, many other radiotracers are used in PET to image the tissue concentration of many other types of molecules of interest.
Cancer cells need common glucose to grow
 Cancer cells are clever. They make their own food. They don´t burn carbohydrate in the presence of oxygen in the power stations (mitochondria) like normal, healthy cells. Instead they love glucose and ´burn´ it without oxygen in the main body of the cell. This is called glycolysis. The mitochondria have been switched off and don´t seem capable of being turned back on again, even when oxygen levels start to rise again.

Teman2 minta pendapatnya, saya baca penderita kanker harus menghindari glucose, sedangkan teknik PET mendeteksi kanker dengan menggunakan glucose, apakah ada efek samping teknik PET dari glucose tersebut thd perkembangan kanker? Thx.  _/\_

Keluarga & Teman / Minta pendapat masalah ortu
« on: 21 February 2013, 09:37:06 PM »
Mohon dibantu. Saya ingin minta pendapat teman di sini apa yang sebaiknya kita lakukan apabila ortu yg tidak bisa dibantah menyuruh melakukan hal buruk, misalnya mengusir pengemis ato pedagang di depan rumah, membunuh hewan.

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