Sabado, Setyembre 15, 2012

BE CREATIVE AND ORIGINAL


When our professor told us that we have to create a blog and not just a blog that you can write whatever you want to write but an edublog that will be read by millions of bloggers not just here in our country but it can be in the whole world. At first I was disappointed to know that it is a requirement for our next semester to have one because journalism is not my type.



First semester of class has came, first requirement: “you have to post your blog and present it in class”. My reaction was like this “why do we need to present it on class? We already posted it isn’t enough?” yeah! I was so stubborn about that because as I say it a while ago, journalism is not my typeJ. But working on my blog helped me to improve my skills, creativity and originality.


Writing a blog is not an easy thing even if it is a personal blog or an educational blog or any type of blog. Because not just a hundreds or thousands of people will read your blog but millions of them that would like, dislike or even worse criticize your blog. But to avoid certain things like this all you have to be is “be a researcher, original and creative” that’s all you’ve got to have to make a blog.


First, be a researcher, of course you have to familiarize yourself or at least have a background about your topic. You have to put informations with reliable sources. Read books as much as you can, understand the topic and summarize what you have learned. Make sure that your blog is short and direct. Relate yourself as if you were the one researching for that topic and ask yourself “if I am a student searching for this topic will I put this blog as my source?”


Second, be creative. In edublogging you also have to be creative, not because it is “education” you’ll be formal and have plain and dry blog, be creative in an educational way. Creative blogs catches readers and followers. In our presentation in class some of my co bloggers put some games that are related to the topic and some animations, pictures, videos and cool backgrounds, different font sizes and style that emphasizes important words. But be sure that even a small picture you have to site your source that is the second most important policy in blogging. Why second and not first? Here it is,


Lastly and the most important lesson I learned “BE ORIGINAL”. Be original or unique as you are be proud that you creative a helpful source. Just express yourself and share your knowledge that’s all and you’re done.


Blogging is cool and fun to make because it is such a pleasure that you have written a blog that will be read my millions of people and you are proud to say “hey this is my blog and yea it is original”. Create blog as unique as you are, as creative as you are and as knowledgeable as you are.

Martes, Agosto 7, 2012

introduction to toxicology




Toxicology (from the Greek words τοξικός - toxicos "poisonous" and logos) that can be defined as a branch of biology, chemistry, and medicine that deals with poisons and the adverse effects of chemicals on living organisms. A poison can be define as any substances that causes harmful effect when administered to a living organism, poisoning by a chemical agent is equivalent to chemically induce disease. Toxicity can be acute or chronic, it can be a simple headache that can lead to convulsion and coma and worst it can also lead to death.




Toxicology can be measured as clinical “endpoints” which includes mortality (death), teratogenicity, carcinogenicity and mutagenicity. LD50 and LC50 are use to determine the mortality rate due to toxicology. LD50 is invented by J.W. Trevan in 1927 which stands for “Lethal Dose”, it is the amount of the drug given which causes the death of the 50% being tested, normally expressed as milligram of substance per kilogram of body weight. LC50 stands for “Lethal Concentration” it is the measure of concentration that will kill half of the sample population through exposure via inhalation. It is expressed as milligrams of substance per liter of air or water.




Toxicity is complex that it can vary from one organ to another as well as age, gender, genetics, diet psychological condition, or the health status of the organism. Toxicology is divided in 3 branches:
  • ·    Clinical toxicology – deals with the effect of drugs to human whose purpose is to prevent diseases.
  • ·   Forensic toxicology – it detects and identify the presence of drugs and poisons in the tissues, body fluids and organs of the living organisms.
  • ·   Environmental toxicology – the study of harmful effects of agricultural and industrial toxins.


Drugs are classified as:
  • ·    Opiates – a drug tending to induce sleep and alleviate pain
  • ·   Stimulants – a drug that induce the activity of nervous system or cardiovascular system (e.g. caffeine)
  • ·  Hallucinogens – a substance that causes excitation of the central nervous system, characterized by hallucination, mood change, anxiety, sensory distortion, delusion, and depersonalization.
  • ·    Depressants – a drug that slows down the normal function of the nervous system


Toxins can enter our body through inhalation, absorption, ingestion and injection, the response of our body depends of the route of exposure. Inhalation is the most important route that can lead to acute or chronic effects, in inhalation the toxin is breathed to the lungs through nose or mouth.  Absorption the most common effects are primary irritation from contact, sensitization from repeated exposure, and systemic poisoning from absorption. Ingestion is when the chemical is taken through the mouth and passed through the gastrointestinal tract. Injection occurs during the administration of drugs, from the use of high pressure, spray painting, or from the rupture of high- pressure lines.



To understand more about toxicology, here is a video that further explains toxicology and different drugs that can harm our body

References:

Martes, Mayo 15, 2012

Introduction to Endocrinology

Endocrinology comes from the Greek work endo which means "within", krīnō, “to separate” and logia meaning “study of”. It is the study of Endocrine system, its diseases, its diagnosis and treatment. It is also about regulation of growth, metabolism and energy, and balancing of sugar, water and salt. 


  
"General locations of Endocrine Glands"




Endocrinology is also concerned in the physiological function of hormones secreted by the specific organs in our body. Hormones are present in all organisms that have a receptor sites for the binding of the target cells. Its action is to act as chemical messengers that transmit signals to the cell. These signals are passed through the blood to act on its target organ which has cells processing for the receptor sites. 



When it binds to the receptor site of a target cell, a molecule might act as an "agonist" (
 are molecules that bind to the receptor site of a target cell and produce biological effects as a result )  or as an "antagonist" ( are molecules that bind to the receptor site of a target cell while at the same time failing to trigger the biochemical results of the agonist  ).

Photo Credit: 
http://www.ftmguide.org/hormonebasics.html#endocrinology

Hormones are made by our body, each hormones has a specific target cells. They are like ATM account that you can store and release if needed. The blood serves as the carrier of these hormones to perform their duties with their specific targets. If these hormones are release in too small or too great amount the receptor site or binding site may not be sufficient for the hormones which we called as  “hormonal imbalance”.

Pituitary

  •    Oxytocin
  •    Anti- Diuretic Hormone (ADH) also known as “vasopressin”
  •    Prolactin (PRL)
  •    Human Growth Hormone (HGH)
  •    Thyroid Stimulating Hormone (TSH)
  •    Adrenocorticotrophic Hormone (ACTH)
  •    Leutenizing Hormone (LH)
  •    Follicle Stimulating Hormone (FSH)
  •    Gonadotrophins
  •    Interstitial Cell Stimulating Hormone (ICSH)
  •    Intermedin


Pineal

  • Melatonin 
Thyroid Gland·         
  • Thyroxin
  • Calcitonin


v  Parathyroid Gland
  • Parathormone


v  Thymus
  • Thymosin


v  Pancreas
  • Insulin
  • Glucagon


v  Adrenal Glands
   (Adrenal Medulla)
  • Adrenalin
  • Noradrenalin
(Adrenal Cortex)
  • Corticosteroids


v  Ovaries
  • Oestrogen 
  • Progesterone

v  Testes
  •       Testosteron


For more information about their functions and diseases please visit http://www.ivy-rose.co.uk/HumanBody/Endocrine/Endocrine_Glands.php



Thank you for reading my blog :)



References