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Senin, 27 Januari 2014

Should schools give homework?

Diposting oleh Unknown di 07.38 0 komentar

 
One of the biggest things that causes stress (as a student) is homework. One of the main reasons is, as a student, I don’t think for a second that I actually benefit from homework. To me, it’s just something that causes unnecessary stress and in the end doesn’t actually do much for you. Sure, some practice of graphing concepts is good, but why couldn’t we just do board work in class? I think that we, as students, should not have homework for a number of reasons. 
Some people say that homework is good. Some people say that homework is bad. Some just don’t care (not many). The people that say it is good usually argue that, well, as the saying goes, practice makes perfect. Like I said, why not do board work in school instead of sending work home? The dictionary definition of ‘school’ is: “an institution where instruction is given, especially to persons under college age: The children are at school.” In this case, why not just do a little practice to let the teachers make sure that the student understands the concept, and once they do, why do teachers bother to give them 10-20 more problems to do at home? Besides, from what I understand about teachers, they (maybe you are a teacher as well, you can possibly relate to this) hate grading homework and find it just as annoying as we do. 
Another reason we shouldn’t have homework: it causes unnecessary stress. If what I said in the above paragraph is true, which it is, then homework is pointless. If there is no point to homework, then why assign it? All it does is cause stress that isn’t needed. Why would you do that? I have (as a student) had quite a lot of times where I have been up a lot longer than usual doing homework, sometimes make-up from missed school, sometimes because I simply forgot that we had homework in a particular subject and therefore didn’t do it. I then had to make it up the next night, and got marked down for it. Humans are forgetful. That means I got marked down because of human nature. 
Some people say that homework teaches students self-discipline and responsibility; I know from experience that that is NOT true. I also found NO evidence for that while I was researching. Others say that it creates a link between school and family. Ok, so other than intruding on time that could be spent with family how does it do that? Still, some say that it helps kids to like learning. Again, I know from experience that this is NOT TRUE! If anything, it does the exact opposite of that. We all know it: Everyone hates homework.

Jumat, 22 Februari 2013

Diseases of Human Respiratory (penyakit pernafasan manusia)

Diposting oleh Unknown di 00.48 0 komentar


1. INFLUENZA
The flu is a respiratory (i.e., nose, throat, and lung) infection that can be caused by a variety of influenza viruses.

·        CAUSED
Influenza is caused by RNA viruses the family Orthomyxoviridae (the influenza viruses), that affects birds and mammals.

·        Symptoms
Influenza’s common symptoms are runny nose, sneezing, thoroat imflamation, headache, fever, and feeling of pain and fatigue in the muscles.

·        Prevention
Ø INFLUENZA VACCINE
Ø ANTIVIRAL MEDICINES

·        Treatment
Treatments for influenza include a range of medications.
Ø Antiviral Drugs

2. BRONCHITIS
        
Bronnchitis is an inflamation in the bronchi. The inflamation is will cause coughing and production of greyish yellow mucus in the lung.

·        CAUSED
Bronchitis is caused by viral infction. It can be in cold and flu season, usually coupled with an upper respiratory infection.

·        Symptoms
Symptoms such as fever with chills, muscle aches, nasal congestion, andsore throat.

·        Prevention
Ø Stop smoking.
Ø Avoiding long exposure to air pollution from heavy traffic may help prevent bronchitis.

·        Treatment
Treatments for Bronchitis are :
Ø Antibiotics
Ø Cough medicine
Ø Therapies

3. ASTHMA

Asthma is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Asthma is not contagious, is genetic.

·        CAUSED
Asthma is caused the muscles surrounding the bronchioles to constrict so much that air has difficulty reaching the lungs.

·        Symptoms
Symptoms include wheezing, coughing, chest tightness, and shortness of breath.

·        Prevention
Ø Follow your asthma action plan with your doctor and health care team.
Ø Identify and avoid asthma triggers.
Ø Monitor your breathing.
Ø Identify and treat attacks early.
Ø Take your medication as prescribed.
Ø Pay attention to increasing quick-relief use inhaler .
·        Treatment
Asthma cannot be cured

4. TUBERCULOSIS (TBC)
        
Tuberculosis is infectious disease that attacks the lungs.

·        CAUSED
TB causes formation of hard nodules in alveolus. TB is caused by the bacteria Mycrobacterium tuberculosis.

·        Symptoms
Symptoms such as loss of weight, loss of energy, poor appetite, fever, a productive cough, and night sweats

·        Prevention
Ø The tuberculosis vaccine.

·        Treatment
Treatments for TBC are :
Ø Isoniazid
Ø Rifampicin
Ø Pyrazinamide
The patient is considered cured at six months (although there is still a relapse rate of 2 to 3%).

5. Pneumonia
        
Pneumonia is inflammation lung tissue, especialy in the alveoli.

·        CAUSED
Pneumonia caused by bacteria, viruses an fungi. The alveoli is fill with fluid and mucous, preventing oxygen from being absorbed.

·        Symptoms
Symptoms is cold and flu

·        Prevention
Ø Pneumococcal vaccine (Pneumovax, Prevnar) prevents Streptococcus pneumonia.
Ø Influenza vaccine prevents pneumonia and other infections caused by flu viruses.
Ø Hib vaccine prevents pneumonia in children from Haemophilus influenzae type b.

·        Treatment
Treatments for Pneumonia are :
Ø  O2 if necessary,
Ø   Antibiotics

6. Pleurisy (pleuritis)
        
Pleurisy is an inflamation of the double membranes surrounding the lungs (pleura).

·        CAUSED
Pleurisy is caused by infections of other organ close to lungs.

·        Symptoms
Ø Chest pain
Ø Cough
Ø Shortness of breath
Ø Fever

·        Prevention
Ø anti-inflammatory drugs.

·        Treatment
anti-inflammatory medicine :
Ø ibuprofen (Motrin) or aspirin, (to reduce the pain and inflammation).
 

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