Ezaz Ahmed

  Introduction: Ultraviolet (UV) radiation from the sun has both beneficial and harmful effects on the human body. While it is essential for the synthesis of vitamin D, excessive exposure can lead to skin damage and an increased risk of skin cancer. The extent of UV penetration into the skin layers is crucial in determining the level of damage caused. This article explores the depth of penetration of UV radiation into the skin and the factors that affect it. Depth of Penetration: The skin consists of three layers: the epidermis, dermis, and subcutaneous tissue. UV radiation penetrates the skin's outermost layer, the epidermis, and can extend into the dermis layer. The depth of penetration depends on the wavelength of the UV radiation. UVB radiation, with a wavelength of 280-320nm, primarily affects the epidermis and does not penetrate deep into the skin. In contrast, UVA radiation, with a wavelength of 320-400nm, penetrates deeper into the skin and can reach the dermis layer. Facto...

  কাকরোল, টমেটো ও শসা থেকে কীটনাশকের অবশিষ্টাংশ দূরীকরণ সবজি মানুষের দেহের প্রয়োজনীয় পুষ্টি উপাদানের একটি গুরুত্বপূর্ণ উৎস। দূর্ভাগ্যবশতঃ সবজি ফসল প্রায়ই পোকামাকড় ও রোগজীবানু দ্বারা আক্রান্ত হয় যা সবজির উৎপাদন ও মান নিয়ন্ত্রনে ব্যপক ক্ষতিকর প্রভাব ফেলে। সবজির উৎপাদন বৃদ্ধি ও ক্ষতি নিয়ন্ত্রনের জন্য রাসায়নিক কীটনাশক ব্যাপকভাবে ব্যবহার হচ্ছে যার অবশিষ্টাংশ ভোক্তার স্বাস্থ্যের উপর ক্ষতিকর প্রভাব ফেলে। এই ক্ষতির পরিমান কমিয়ে আনার জন্য সবজি থেকে কীটনাশকের অবশিষ্টাংশ অপসারন করা জরুরী। বিভিন্ন প্রক্রিয়াজাতকরন কৌশল বা পদ্ধতি ব্যবহার করে কীটনাশকের অবশিষ্টাংশ কিছুটা হলেও অপসারন করা যায়। কাকরোল, টমেটো ও শসা থেকে কীটনাশকের অবশিষ্টাংশ অপসাণ তথা দূরীকরন রান্নাঘরে সহজলভ্য কিছু উপাদান যেমন খাবার লবন ও ভিনেগার দ্বারা সহজেই করা যেতে পারে। তাছাড়া, খোসা ছাড়ানোর মাধ্যমে শসা হতে অর্গানোফসফরাস কীটনাশকের যথা- ডাইমেথয়েড, ক্লোরপাইরিফস, কুইনালফস, ডায়াজিনন, ম্যালাথিয়ন এবং ফেনিট্রোথিয়নের অবশিষ্টাংশ অপসারন করা যায় যা নিম্নে আলোচনা করা হলো। খাবার লবন + খোসা ছাড়ানো  বাজার থেকে কিনে আনা শসা পরিস্কার পানি দিয়ে ...

  Introduction: Yamaha is a well-known Japanese motorcycle manufacturer that produces a wide range of motorcycles in various segments. The Yamaha FZS V2 is a popular motorcycle model that was launched in India in 2014. It is a sporty-looking motorcycle that is designed to cater to the needs of young riders. This research paper aims to provide an in-depth analysis of the Yamaha FZS V2 motorcycle.   Design and Styling: The Yamaha FZS V2 has a sharp and aggressive styling that appeals to the younger generation of riders. It features a muscular fuel tank, a short tail section, and a sharp headlamp. The bike has a sporty stance, thanks to the split seats and the sporty handlebar. The FZS V2 is available in several color options, including Knight Red, Lightning Cyan, Hurricane Gray, and Opal White.   Engine and Performance: The Yamaha FZS V2 is powered by a 149cc, air-cooled, single-cylinder engine that produces 13.2 Bhp of power at 8000 rpm and 12.8 Nm of torque ...

  Our life is finite but our impact in the society or among the people can be infinite. A good work always can be inspired you for your success and bring peace in your mind. Always try to be considerate of others but don’t let them walk all over you. You can be nice and have boundaries. You can be helpful and say no sometimes. You can be a good person and not be a pushover. You can be kind and not give to unreciprocating takers. Havening a limit doesn't mean you are bad. It means you know better.  Consideration is not something you get from everyone and it doesn’t come from asking the world to approve you but always try to considerate others for your mind peace.  Consideration always bring peace in your mind.  - Ezaz Ahmed  

  Feelings  are not permanent. Feelings got replaced by other feelings. Sorrows can be replaced by other sorrows and happiness can be replaced by another happiness.  However, maximum time people can replaced there feelings. Sometimes sorrows can be replaced by happiness on the other hand, happiness can be replaced by sorrows. Feelings totally depend on your kindness and mindset .  Not the sorrows, not the happiness, not the feeling being special. Not the feeling being hated. Feeling just wipe out from memory not permanently. But for the time begin and don't tie them with you.  "Learn to live with this change, learn to adopt change."

Salman is a boy of a middle class peasant family in the village but he has no anger or resentment. Because he lives in Dhaka like ten other middle class boys. There is no shortage of middle class like him in Dhaka city. After coming to Dhaka, the number of elite friends has also increased. His funniest thing is that he can adapt to any environment, so he thinks that human beings are  adaptable  creatures. They can be adapted to any environment if they try . Salman came to Dhaka to study Intermediate after finishing secondary school from a village school. Ahead of his intermediate exams, he used to do tuition for family difficulties. But the test was ahead so he dropped tuition. Lots of reading pressure on the other hand money is running out of his meal. Salman falls in great danger. He called his father and asked for money. The father has assured that he will have to go through the examination for two months with three thousand taka and then he will not have any problem. Sell...

The feeling of thirst is increased by drying the throat in the hot summer sun. So, I stopped my bike and sat for a while in the shade of the tent under the banyan tree. I drank water from a tea stall to quench my thirst. Now feelings of peace in the body. The area where I now sit in Tong's stall is the area where I did attachment training(Internship) last year. Upazila Agriculture Office sent me to this area for attachment training. So the rural path of the area is well acquainted with two or four people. A farmer had just harvested the paddy plant and was sitting on the bench next to me, sitting with his head down. I was scared and looked at him. After a while he raised his head and drank some water and asked the shopkeeper to give him a cup of tea. As soon as I finished talking to the shopkeeper, half of his gaze came towards me. The farmer is staring at me now. I was also quite surprised. Why would anyone look at me like this! Thinking about it, the man threw a question at me, ...