How Wind Shield Wiper Mechanism Works in Your Car

The wind shield wipers of your car clean the windshield in the front. The wipers work by an electric circuit. The wind shield wipers are equipped with a special mechanism to moving back and forth across the windshield countless times and thus clear the water from the windshield. On their highest speed, they moves very fast shaking the car from side to side. Let us discuss in this article the working mechanism of wind shield wipers

Working of Wind shield Wipers mechanism in Your Car

The wind shield wipers runs on two mechanisms to perform required task:
They are as follows

1. A combination electric motor and worm gear reduction to reduce required power to the wipers.
2. A connecting link that converts the rotational output of the motor into the back-and-forth motion of the wipers.

• Electric Motor and worm Gear Reduction
• This mechanism is used to accelerate the wiper blades.
• It takes lot of force to accelerate the wiper blades back and forth across the windshield quickly.
• To generate this force a worm gear is used on the output side of electric motor.
• The worm gear can increase the torque of the motor by 30 times. The output of the gear reduction operates a connecting link hat moves the wipers back and forth.
• Inside the motor-gear assembly there is an electronic circuit that is used to sense when the wipers are in rest position.
• The circuit provides the power to the wipers until they are parked at the rest position of the windshield
•  then cuts the power to the motor.
• This is how the electric motor and worm gear mechanism of wind shield wipers works.

• The connecting linkage to convert the rotational output of motor into back-and forth motion
• A cam is fixed to the output shaft of the worm gear reduction.
• This cam rotates around the wiper motor.
• The cam is connected to a rod as the cam rotates the link moves the rod back and forth.
• This rod is attached to a short rod that actuates the wiper blade on the driver's side.
• Another long rod transmits the force from the driver-side to the passenger-side wiper blade.
• Due to this mechanism both the passenger wipers and the driver' side wipers moves in back and forth direction.
• Windshield wiper systems are designed to wipe the wind shield/window for about 1.5 million times in their lifetime.
• These are the two mechanism that are equipped inside the car wind shield system to move the wipers back and forth.

Diagnosis of Dental Gum Diseases

Diagnosis of gum diseases are done to examine gums whether there is any plaque and tartar formation or any inflammation of gums and loss of bone under teeth. Dentist perform the following tests to diagnose the gum diseases.

Physical examination of gums
Dentist visually examines the gum tissue surrounding each and every tooth. The color and shape of the gum tissue is compared with healthy gum. Dentists check for redness, bleeding from gums and swelling of gums surrounding the teeth. If the gum between the teeth is blunt then it can be diagnosed as periodontal disease. Sensitivity of tooth around the gum line is due to the receding gums.

Taking x-rays
Dental bite wing x-rays are taken which gives the pictures showing the level of underlying bone. These will help you to diagnose whether the bone has lost due to periodontal diseases. Eighteen mouth x-rays are taken to make up the full mouth series to diagnose the gum problems.

Testing teeth movement
Teeth movement is determined by pushing the teeth between two instrument handles and observe the mobility. The mobility of teeth indicates that there is a possibility of loss of teeth.

Sensitivity of teeth
Sensitivity of teeth is done to diagnose the gum problems. Sensitivity of teeth is due to the receding gums. Receding gums indicates the sign of gum problems.

Measuring the gum pockets depth (Periodontal Probing)
Periodontal probing is a technique used to determine how severe the gum problem is. It is used to diagnose the gum problem by using a instrument called probe. It is a fine instrument where tip is inserted into the pockets of the teeth to determine the depth of the pockets surrounding the teeth. In this, probing is done 3 times on cheek side and 3 times on tongue side and determines the depth of the pockets.

Pockets measuring less than 3mm indicates that the gums are healthy. Pockets measuring more than 3mm to 5mm indicates that there is sign of gum diseases. If the pocket depth is more than 5mm it indicates that the disease condition is severe and there is loss of bone. It is a painless technique and it is more reliable and accurate.

An Introduction to Dental Implants

Dental implants are metallic surgical devices that are a replacement for missing or damaged teeth. There are many methods to replace missing teeth, but most people consider dental implants.

Advantages of dental implants

• Implants look like natural teeth
• Implants does not overload on adjacent teeth
• Implants improve speaking and mastication capacity
• Implants are fixed and long lasting.

History of implants
Transplantation of teeth made of ivory was first seen in Egyptian mummies. Dental implants have been in use since 1970. These implants are designed to eliminate the problems created by dentures and fixed bridges. In olden days dental implants were made of copper. Now a days, implants come in various shapes, such as:

• Cylindrical implants
• Screw implants
• Threaded implants
• Plateau implants and
• Perforate implants

Types of implants

• Autoplastic implants: These implants are prepared by taking tissue from the same individual.
• Homoplastic implants: These implants are prepared by taking from the same species.
• Heteroplastic implants: These implants are prepared by taking from the different species.
• Alloplastic implants: These implants are prepared from non-living material.

Materials used for preparation of implants
Implants are prepared using different materials such as:

• Metals: Metals used are stainless steel, titanium, vitallium, cobalt chromium, etc. Titanium is most commonly used.

• Ceramic material: Ceramic materials like plasma are sprayed on the implants and are bio compatible with the implants.

• Polymeric materials: Polymeric materials like polytetraflouroethylene and polymethacrylate are used for preparation of implants.

• Poly carbons: Poly carbons like carbon and stainless steel are used for preparation of implants. These are not used because they may brittle in some cases and reduces the success rate of implants.

Mechanisms involved in the implant placements:
There are 2 mechanisms involved in the placement of implant, they are:

• Osseointegration: It is a process that is mostly used and is a successful type of implant. This implant takes around three to six months to anchor and heal.

• Fibrointegration: Fibrointegrated implant is an early form of dental implants which is not used today, they are not as successful as osseointergration.

Types of business application software

The type of business application software used in a business depends upon the nature and the model of the business. For example, a manufacturing company needs the application type for work in progress; whereas a service based company does not require work in progress. In their business model, it might not appeared.

But there are some common tasks to be done in every business. These include accounting, sales and customers/clients.

Now we discuss some major types of business application software.

• Supply chain management: The supply chain of a business is the whole process of delivering the product or service to the end user from the beginning. The supply chain management includes dealing in relationship with vendor in procurement process, purchase and sales orders, inventory management and work in progress.

• Finance and accounting: The software concerned with finance and accounting used to record the daily transactions, pay bills, tax reports, and payroll. Some software has huge options. It is better to select after complete analysis requirement. Otherwise it will waste of resource.

• Customer relationship management: Customer relation business applications store the data of customers. The state of relation with them in the past will can be tracked with these applications.

• It will helpful to sales department to cross sale, giving additional benefits to the good track recorded customers, sales campaigns. We can improve customer satisfaction levels with the previous data. Can improve the product life cycle. It can helpful to generate the additional revenue opportunities.

• eCommerce: eCommerce software facilitates building online sales portal, shopping carts effectively. eCommerce software can integrate with supply chain software, so that businesses can track inventory and sales.

• Software integration: Most business software applications allow integrating all the company’s process units to enable it function as a single unit. Simply all the process of the company is in a single application. Some of them can allow to import from web and other forms of data.

• Business intelligence: Business intelligence software useful to make decision from the data. These are mostly used to interpret data.

• Enterprise resource planning software: enterprise resource planning (ERP) software is used to manage tangible and intangible resources and processes of the company. These are human resource, inventory, supply chain, sales, customers etc. these are the integrated software modules. For each function there is a module.

• Knowledge management software: Knowledge management software operates by a group of individuals to manage the information. They can analyze, share, store and retreat the data at any time. It can be of sales, customers, opinions, experiences in the profession, ideas etc.

The general purpose software applications are like text or word document software, Painting and office utility software. These are most commonly used software in business.

Business application software aims to bring in efficiency and do the businesses' job easier. Businesses should look for software that suits their business most.

Importance of Reliable Drug Test Kits at Workplace

Drug testing at workplace is a well established program in many organizations. Because it ensures a drug and alcohol-free work environment that is critical for the organization's productivity and reputation. Therefore, when it comes to drug test at workplace, not all the kits are reliable. Because in today's market, you will find different drug test kits manufactures with a varied sophisticated degree of technology.

One is good at quality wise in a specific test and the other one might be technology wise good in another test. Then it becomes difficulty in choosing the right drug testing kit. So, you need to choose the right provider based on his/her experience and services in industry, reviews from outsiders, FDA approved and others. In this article, we will discuss the reasons for choosing reliable drug test kits.

Reasons to choose only reliable drug test kits:

• False positive result: In general, this type of result occurs when the drug test kit reacts with the legitimate drug that is present in the body of the employee who might have taken in his regular diet or for healthy condition.
• Reasons for false positive results:
• Food: Sometimes foods may cause false positive results.
• Vitamin supplements: Common vitamin supplements that an individual takes may cause a false positive result. (Eg. Riboflavin)
• Prescription: Prescription medications for pain revilers (Advil, Nuprin, Motrin), menstrual cramp medications (Midol and Trendar), antibiotics (ampicillin and amoxicillin) may cause false positive results.
• Consequences of  false positive results: When employees are caught for false positive results, he/she may feel bad and embarrassed in front of the co-workers. Even though they are innocent. This will damage the employees career and confidence. On the other side, employer has to spend hundreds of dollars on laboratory to test the sample further.

• False negative results: This occurs when a drug which a drug abuser has taken is not picked up by the drug test kits.
• Reasons for false negative results:
• Employee might have ingested the drug, but the concentration in the sample is below the cut-off. i.e. level of the drug in the sample is too low for the drug test kit to identify.
• Employee might have added adulterants to their sample. Adulterants may destroy the drug present in the sample.
• Low quality material might have been used in the process of manufacturing the drug test kits.

Therefore, it is very important to choose reliable drug test kit at workplace. Because it directly effects the organization reputation, employee loyalty and productivity.

Process of Recruitment

The recruitment process involves many things before you nail down the right candidate for your business. In this article, we have listed the most important things that are essential in recruitment process.

Understanding job analysis
Define a particular role by describing in functional terms such as responsibility, skill, task, etc. Performance of the existing team should be looked into, to know how it works, what is the role of the team or if there is anything that you are missing out.

Understanding what you actually want
You should be clear on what type of candidate you require. You should know how to communicate with each other at different levels, ways of dealing with the customers and suppliers, etc. You should know about the culture, values and beliefs you want in the employees for the business.

Writing the job description

• Defining the role broadly
• What accountability, responsibilities and tasks are involved?
• What opportunities and challenges will involve?
• What kind of person is required to fit in your organization?

Deciding about the process of selection
Once you are decided on the job description, next you need to properly assess the candidate and select the one that best suits the job role. You can have a few rounds of interview where you can test the aptitude, reasoning, verbal and analytical skills of the candidate. It will make the recruitment process easy for you.

Identifying sources
Advertising in news papers or hiring a reputed recruitment agency will help you reach out to many candidates. You can also take help of social media sites like twitter, facebook, linkenIn, etc., to attract candidates to your company. Using various sources is an effective way to attract and target candidates. 

Shortlisting of candidates
After advertising in many sources, you will get a good number of candidates who will come for the interview, you need to identify the right candidates and shortlist them for the next round. 

Selection
Once candidates are shortlisted, it becomes easy for selection, as selection involves interviewing, assessing and reference checking of the candidate.

Offer letter
After you have selected the candidate that matches your job profile, you should officially give him/her an offer letter that includes role of the job, responsibilities, salary details, etc.

Training and joining
The candidate you have selected for a specific job profile may struggle initially to cope up with the job. Therefore, you need to provide some training to the candidate for him/her to undertand the job well.

Reviewing
Performance of the newly joined candidate should be properly assessed by the manager or the team leader. Reviewing the candidates work helps in judging the efficiency and performance of the candidate.

Know About the Importance of Website Monitoring Service

Creating a website to represent the business through online is the best way to introduce the products and services offered by the companies to the netizens. In order to achieve good page rankings and to get listed among the top websites, the companies take the help of search engine optimization. If any problem exists in the website whether at their location or another location, it cannot be found by the companies unless they monitor their website performance every time. Even though the company has a team to monitor those things, they cannot look at their page's performance across the globe. In order to get informed about all the malfunctions of the websites, one need to go for web monitoring services which can successfully intimate the company about different problems in the website.

Website monitoring plays a vital role in detecting the problems in your websites. If your website is the only medium to introduce and expose your products to the customers then a simple problem could avoid them from seeing those products and services, which in turn makes them to another company which offers the same products. Slow working of your site could also make you to loose the customer. This not only decreases your revenue, but also becomes an indirect way of encouraging your competitor and to increase his benefits. Since website monitoring effectively identifies all such defects and problem, you can make timely corrections and hence can save your business.

These services are offered by different companies across the world which can detect the performance of the sites from various parts of the globe. They monitor your site reguhttp://www.blogger.com/img/blank.giflarly, without fail, at a constant time interval and reports you the problems through e-mail or SMS. They also prepare a report stating the number of visitors for your site, the average loading time, and any changes in the content. This report is provided to you through online so that you can check it and can make necessary corrections required to solve those issues.

Functions and Food Sources of Vitamin A

Vitamin A is an alcohol compound and one of the fat soluble vitamins stored in the liver and adipose tissue of the body. The chemical name of vitamin A is retinol. It is available in many forms like retinol, retinyl esters and retinoic acid. This article is about the functions and food sources of vitamin A.

Functions of vitamin A:

• Renowned part about vitamin A is vision. Retinal is one form of vitamin A which helps in neural transmission of light into vision. i.e. in retina of the eye, retinal turns the visual light into nerve signals to the brain.
• Retinoic acid is essential for gene transcription and to treat skin diseases. For the developing fetus, it is essential for the growth of eyes, heart and lungs.
• It is essential for the growth and differentiation of epithelial, bone and nervous tissues.
• It helps eyes, skin and the mucous membranes of the nose, lungs, mouth to remain moist.
• It helps in reproduction, bone metabolism, hematopoiesis and wound healing.
• Beta-carotene is an anti-oxidant that protects the cells from damage by free radical cells and reduces the risk of certain types of cancers. It plays an important role in aging process.
• It is required for healthy skin and night vision.
• It provides immunity by production and activation of antibodies like white blood cells and maintains healthy epithelial cells. Hence, it protects the body from infections.
• Retinoids helps the stem cells for normal differentiation into red blood cells (RBCs). And also helps in mobilization of iron from the storage site to the developing site of red blood cells.

Food sources of vitamin A:
Vitamin A is available in two sources, animal sources and plant sources:

• Animal sources: Vitamin A in animal sources is called as retinoids. These retinoids includes retinols. They are stored in liver. Vitamin A is found in eggs, meat, fortified milk, cheese, cream, liver, kidney, cod and fish oil, etc.
• Plant sources: Vitamin A in plants sources are called as carotenoids. The caretonoids include beta-carotene. They are stored in liver and adipose tissue. The body will convert the beta-carotene into vitamin A. This vitamin is found in dark green, yellow vegetables and yellow fruits like broccoli, spinach, green leafy vegetables, carrots, pumpkin, sweet potatoes, winter squash, cantaloupe, pink grapefruit, apricots papaya, mango, pea, etc.

It is very important to get enough vitamin A in your diet for good vision, growth and overall development of the body.

Know the Importance of Having a Car Insurance Policy

Many people do not like auto insurance and some think, it is an unnecessary expense, because they feel, the monthly premiums will be very expensive and very big amount will have to be cut for each month from their budget to pay the premiums. Some people think, they are paying for nothing, as they cannot feel or see outright.

The premium is the amount which you are paying monthly on your car insurance. This will be determined on the basis of factors that includes good driving record, age, sex etc. this will different based on car for example if you are driving a luxury sports car then you have to higher premium or if you are driving a lower price car then you have to pay lower premium.

When You are driving on the road, you may get exposed to several accidents and dangers that may happen anytime. Then, it will be very troublesome if you don't have an auto insurance and you have even to pay. For example, if you hit someone accidentally, you should be responsible for the damages to the vehicle, the medical bills for anybody getting injuries, car repairing bills, etc. Therefore, it is important to have an auto insurance. If you have auto insurance, you need not worry about such accidents and expenses.

The car insurance is not just for registration requirements but it also provides security and investments for your car when it faces under risk. This will give you peace of mind. You just need to make a claim with the insurer. The company will take care of all the things. This will rid you of the hassles and even of worrying about the amount that needed. So you just need to find ways to lower the premium costs. Instead of thinking to stop paying.

The important thing you need to do is just wait for right insurance provider. For this you need to check for the reviews of the  insurance company and read the customer experience or feedback of the other car owners.

Which Industry is Spending More Money on Online Advertising?

Every year, the online advertising market is experiencing continuous, significant growth. More and more companies are now allocating a significant portion of their marketing budget for online advertising over traditional methods due to the following reasons:

• Easy to track online adverting campaign performance.
• For specific audience groups, companies can easily create customized advertising campaigns.
• Easy to make changes to online campaigns than to traditional advertising campaigns.

According to Global Online Advertising Spending Statistics, retail industry stood higher and is spending 23% more in online advertising than the other industries in 2011. According to the Interactive Advertising Bureau(IAB), Entertainment, automotive, and healthcare were the fastest growing vertical sectors for online adverting in the first half of the year 2012.

Search accounted for 48% of the online ad spend and display-related advertising accounted for 33%. Display related advertising includes Display/Banner ads, Rich Media, Digital Video and Sponsorship.

"Pharma & Healthcare" online ad spending increased by 50%. the reason for this category includes "Pharmaceutical products, facilities, services, researchers, and biological products. It also comprises establishments providing healthcare and social assistance for individuals as well as personal care, toiletries and cosmetic products."

eMarketer has predicted that online ad spending by the health industry in 2012 will be $1.58 billion which is significantly different than the IAB estimate based on the data for the first six months of 2012.

Here we can consider that why this difference has occurred? Both companies which are opting to measure might be different than the other because eMarketer 2011 number of $1.28 billion is virtually same as what IAB said the healthcare industry spent online in 2011.