My boyfriend is so selfish

Entering Classes and Following College Lecturer Brother Palupi

Palupi's older brother, a health physics lecturer, entered the Classroom and said Greetings.

"Assalamualaikum WR WB introduce my name Palupi Putra Rendra." Said Lecturer Palupi.

"Waalaikum Salam WR." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.

"When In High School you have studied physics, brothers?." Said Lecturer Palupi.

"It's brother." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.

"If the physics of health has not been a brother?." Said Lecturer Palupi.

"Not yet brother." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.

"OK well if not and brother will explain about the physics of health." Said Lecturer Palupi.

"Good sister." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.

"Physics (greek: (physicos), "natural", and (physe), "natural") are sciences or sciences of nature in the widest sense. Physics studies the phenomena of non-living nature or matter in the sphere of time and space. Physicists or physicists study the behavior and properties of matter in a very diverse field, starting from submicroscopic particles that make up all matter (particle physics) to the behavior of the matter of the universe as a unity of the cosmos.

Some of the properties studied in physics are properties that exist in all existing systems of matter, such as the law of conservation of energy. This kind of property is often referred to as the laws of physics. Physics is often referred to as the "most fundamental science", because every other natural science (biology, chemistry, geology, etc.) studies certain types of material systems that obey the laws of physics. For example, chemistry is the science of molecules and the chemicals they form. The nature of a chemical substance is determined by the nature of the molecules that make it up, which can be explained by physical sciences such as quantum mechanics, thermodynamics, and electromagnetics.

Physics is also closely related to mathematics. Physical theory is expressed in mathematical notation, and the mathematics used is usually more complicated than the mathematics used in other fields of science. The difference between physics and mathematics is that physics deals with the cast of the material world, while mathematics deals with abstract patterns that are not always related to the material world. However, this difference is not always obvious. There is a wide area of research that is intersected between physics and mathematics, namely mathematical physics, which develops mathematical structures for physical theories.

Health physics is a branch of medical science and is one of the fields in biophysics. There are 2 (two) fields included in medical physics, namely: medical field and physics field. Therefore, medical physics/health plays a role in 2 things including:

The use of physics to determine the function of the body includes health and disease known as faal physics/Physiology physics

The use of physics in the practice of medicine includes knowledge of objects/tools used in the field of medicine, namely ultrasonic devices, lasers, radiation and so on.

In the subsequent development of medical/health physics work in the field of radiology physics, including radiation protection, the use of radiation in diagnostics and treatment of patients with radiation.

Medical physics is divided into sub-divisions:

a. Health Physics

b. Medical engineering

The science of health physics for midwifery is an application of health physics especially in the field:

Styles on the body and inside the body (mechanical/style)

Energy that changes due to heat flow and the work done (heat/thermodynamics)

Electrical current waves are closely related to the use of electric current to stimulate sensory nerves and devices: EMG, ENG, ERG, EOG,EGG,EEG,ECG,MCG,MEG and others

Ultrasonics in the field of health for diagnostics (in obstetrics) and treatment for example diathermy, cancer, perkinson and others (beep/Ultrasonic)

Pressure on a liquid includes hydrodynamics and fluid.

Health physics or called medical physics is a science that combines two very broad fields of study, namely: physical science and health science and their interrelations. Health physics refers to two main areas of study:

first, the application of the functions of physics to the human body and its application to overcome diseases experienced by the body.

second, the application of physical science to the activities of medical examination techniques.

The first part is often called the physics of physiology; while the second part involves a whole understanding of the basic concepts and workings of the medical instruments (equipment) used to diagnose patients. Both fields of study are very important to maintain (the first part) health and (the second part) to overcome or heal the body if it has been attacked by disease.

The field of health physics consists of several sub-divisions. In the United States, health physics is more focused on the field of radiology. Physical science is used to analyze perfectly about the physical process of radiation events and provide a complete solution on how to overcome the problems that may occur in the human body due to the provision of radiation treatment. The process of healing the human body from various diseases by means of radiation can thus be done well and perfectly.

Mathematics as a tool

Measurement Magnitude

In everyday life, we often take measurements. In the world of health measurement becomes a routine task that is done. Measuring body temperature, measuring height, measuring heart rate, measuring blood flow rate are examples that many of us find. This measurement process will involve numbers on various digits.

All measuring instruments used in the measurement process must have the smallest measurement scale, the smallest scale shown on the measuring instrument. We realize that as human beings we have many limitations. In the process of measurement we do, because of that limitation, will produce a slight error in the tolerance limit, which physicists and mathematicians categorize as the uncertainty of the measurement results.

That is why it is often recommended that measuring something of magnitude should be done repeatedly and taking its average as the final reported result. All of that is done so that more accurate results are obtained so that the results of the measurement actually state the actual situation. The smallest possible error on any measurement is half the size of the smallest scale used.

 Generally in our daily lives the mass of measurement results that we get are only involving the magnitude or value of the number only. This amount is called the scalar quantity. We rarely think about what is attached to that magnitude. If a measurement process produces only magnitude, then the measurement only produces the scalar value of the measurement.

    But in real life and in the world of health, a lot of the magnitude that must be measured not only has a big but also has a direction. A quantity that has a magnitude and direction is referred to as a vector quantity. For example, let's say you push a friend so hard that they fall and crash to the floor that they get hurt. You are in the process of it certainly “give” a style of a certain size to encourage that friend. But in addition to the style value that you “give” is certainly there is a direction where you push it. So the style that you “give” it has big and direction, so that style is referred to as vector quantity. Many vector quantities that we will use in solving various health problems.

Unit of Physical Magnitude

    The style you use to encourage the friend has a big and direction. In addition, the force also has units as well as other large-scale. The force has the same Newtonian unit as kg.m/dt2. On other occasions you may find the unit of force to be gr.cm/dt2. At first glance, there is a difference between the two units even though they are both units of the magnitude of the force. Why does the same quantity have different units ? The study of physics actually allows for differences in writing. The difference that occurs in writing the above unit of force is only in the unit system used. Kg.m/dt2 is an international unit system (SI) or often called MKS system derived from the word Kilogram Second Meter, while gr.cm/dt2 is a CGS system derived from the word Gram Second Centimeter.

    Some countries in Europe use the CGS system, while the United States prefers the MKS system. Units of other massages can be seen in various teaching books. In the world of health we will be faced with many units such as: kg (body weight), oC (body temperature), cm3 (volume of fluid to be injected into the body), etc.

Tree Magnitude and Derivative Magnitude

    The quantities used in a calculation often involve principal quantities and derived quantities. The size of the tree is the amount of the policy that is no longer described. Derivative quantities are quantities that are composed of more than one principal quantity.

Tree Size

Length (distance) meter (m)

Mass of kilograms (kg)

Second time (sec) or second

Temperature Kelvin (K) or Celsius (C)

Electric current Ampere (A)

Candela light intensity (Cd)

Amount of mole substance (mol)

Derivative Magnitude

Speed m/det

Area m2

M3 volume

Style kg.m/dt2

etc." Said Lecturer Palupi.

"Dad brother understands." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.

"Okay well then and brother will give you guys a problem." Said Lecturer Palupi.

"Good Brother." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.

"Have you done it, brothers?." Said Lecturer Palupi.

"It's brother." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.

"Waw is very nice and true brothers." Said Lecturer Palupi.

"Alhamdulillah brother then." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.

"Okay well and just end the course today Wassalamu'alaikum warahmatullahi wabarakatuh sis." Said Lecturer Palupi.

"Waalaikum Salam WR." Say Ani, Bella, Bianca, Cika, Deva, Devi, Dina, Endah, Eka, Fani, Gita, Hena, Hamidah, Indah, Marsya, Nita, Oktara, Pina, Rani, Ririn, Shinta, Sofia, Sonya, Tata, Talitha, Tiara, Tina, Ulfah, Willy And Wulan.