Correlating Porosity and Tensile Strength of Chemically Modified Hair
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This document discusses correlating hair porosity (water uptake) and tensile strength as methods to quantify hair damage from chemical treatments. It aims to validate the porosity method against the widely used tensile strength method. The study also compares damage from permanent waving, coloring, bleaching, and straightening to rank chemical processes by damage potential. This is the first comparative damage ranking for various hair care processes.
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This document discusses the latest trends in nondestructive testing (NDT) with reference to the Pakistan Air Force (PAF). It outlines the key NDT methods used in PAF, including visual inspection, liquid penetrant, magnetic, ultrasonic, eddy current, and radiography testing. It also discusses some modern NDT techniques such as acoustic emission testing, phased array ultrasonics, infrared thermography, digital radiography, pulsed eddy current, and shearography. The document emphasizes the importance of NDT for ensuring aircraft structural integrity and safety through flaw detection, as well as the benefits of structural health monitoring.Intro To Biofilms
Intro To Biofilmsmfornalik
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This document provides an overview of biofilms and their relevance to pharmaceutical manufacturing. It discusses how biofilms can cause both opportunities and problems in the industry. Biofilms are defined as the unwanted adhesion of microorganisms to surfaces, which can lead to manufacturing issues like product contamination, process downtime, and sampling difficulties. The document outlines the typical sequence of biofilm formation and highlights their increased resistance to antimicrobials and cleaning agents. It also introduces hurdle technology as an approach to prevent biofilms through multiple barriers in the manufacturing process.More from Dr. Ali Syed (8)
HAIR DAMAGE: CAUSES, PREVENTION AND CURES
HAIR DAMAGE: CAUSES, PREVENTION AND CURESDr. Ali Syed
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Hair damage occurs when the hair structures like the cuticle, cortex, and medulla are physically or chemically altered such that they cannot return to their original state. Common types of damage include cuticle loss, longitudinal rupturing, and fibril disintegration. Damaged hair exhibits signs like loss of elasticity, breakage, porosity, dullness, and excessive tangling. Causes of damage include UV exposure, mechanical and chemical manipulation, thermal styling, and harsh shampoos. Treatments include deep conditioning, reconstructors, moisturizers, and laminates to repair damage and improve hair health.Shelf Life & Storage of Salon Products
Shelf Life & Storage of Salon ProductsDr. Ali Syed
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1) The shelf life of salon products depends on factors like product formulation, ingredient selection, and storage conditions. Products are most effective when used within their shelf life.
2) Key determinants of a product's shelf life include its stability over time. Unstable formulations can separate as ingredients like oils and water separate due to gravity.
3) Ingredient selection also impacts shelf life, as some ingredients like animal proteins are more prone to bacterial growth than others.Comparing the Irritation Potential of Lye and No-Lye Relaxers
Comparing the Irritation Potential of Lye and No-Lye RelaxersDr. Ali Syed
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Comparing the irritation potential of lye and no-lye hair relaxers. Lye relaxers, introduced in the 1960s, were more effective at straightening curly African American hair than previous methods like the Walker Method. However, lye relaxers are more irritating to the scalp than no-lye relaxers which use a different straightening agent. A study found that no-lye relaxers caused less scalp irritation and damage than lye relaxers, demonstrating they are a safer alternative for straightening curly hair.Recent Advances in Treating Excessively Curly Hair
Recent Advances in Treating Excessively Curly HairDr. Ali Syed
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Recent advances in treating excessively curly hair include:
1) In the early 1900s, Madame C.J. Walker invented a pomade and straightening comb that made curly hair softer and straighter.
2) In the 1960s, companies introduced chemical hair straighteners like relaxer creams containing sodium hydroxide or guanidine, eliminating the need for temporary straightening methods.
3) In the 1980s, companies improved relaxer formulas by adding conditioning polymers to reduce damage from straightening and improve hair strength and elasticity.African American Hair
African American HairDr. Ali Syed
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This document summarizes research on the physical properties of African-American hair compared to Caucasian hair. It finds that African-American hair has a more irregular and elliptical shape than Caucasian hair. Studies measured the breaking stress, elongation, and diameter of wet and dry hair. African-American hair was found to have a lower breaking stress but higher yield stress than Caucasian hair. It also analyzed static charge and moisture content to further the understanding of differences between the two hair types.Dry & Itchy Scalp Presentation
Dry & Itchy Scalp PresentationDr. Ali Syed
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The document discusses the causes of a dry and itchy scalp. It describes the three main layers of the scalp: 1) the skin, which contains hair, sweat glands, and sebaceous glands; 2) the connective tissue underneath the skin, which connects the skin to muscles and contains nerves and blood vessels; and 3) the aponeurosis layer beneath the connective tissue, which provides attachment sites for underlying muscles.The Structure of Hair
The Structure of HairDr. Ali Syed
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The document summarizes the structure of human hair. It describes the various layers that make up hair, including the cuticle, cortex, and medulla. The cuticle is the outermost layer and protects the inner structure. Beneath this is the cortex, which occupies most of the hair and contains cortical cells and macrofibrils composed of intermediate filaments embedded in a protein matrix. In the center is an optional layer called the medulla. Melanin granules in the cortex and cuticle determine hair color.Hair Damage
Hair DamageDr. Ali Syed
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Hair damage and how it relates to combing, shampooing, chemical treatment, thermal treatment, and weather exposure.Recently uploaded (16)
Bicycle Safety Matters: Protect Yourself on the Road
Bicycle Safety Matters: Protect Yourself on the RoadBisnar Chase Personal Injury Attorneys
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Bicycle accidents are more dangerous than many realize. 癌鏝
78% of fatal bike crashes happen in cities
62% of bicyclists killed in 2022 werent wearing helmets
Adult cyclist fatalities have tripled since 1975
If youve been injured in a bicycle accident due to someone elses negligence, Bisnar Chase can help. Visit www.BestAttorney.com to learn more. 鏝 #BikeSafety #ShareTheRoadFillerina UK Advanced Anti-Aging & Volume-Boosting Treatment
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Fillerina Plus is an advanced dermo-cosmetic treatment designed to target deep wrinkles and significant volume loss. With a unique blend of eight hyaluronic acid molecules, it deeply penetrates the skin to plump, hydrate, and restore lost volume, delivering visible anti-aging results.daily planner for Stay at home moms and housewives.
daily planner for Stay at home moms and housewives.Nabah
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daily planner for Stay at home moms and housewives.13. How Rinipo Uses Advanced Materials.pptx
13. How Rinipo Uses Advanced Materials.pptxrinipoblogmanisha23
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Technological innovation and new materials are in the forefront of revolutionizing industries and setting the future agenda in today's rapid world. Organizations that adopt innovative materials not only enhance their products but also drive the sustainability and efficiency of their operations. Rinipo, a firm with a pioneering mindset, has been able to incorporate advanced materials into its product design and manufacturing. This focus not only improves the performance of their products but also supports their vision for a sustainable future.
scienticfic foundation of health good healht and wellbeing
scienticfic foundation of health good healht and wellbeingaishwaryam59368
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Health and Its Importance
Health is a fundamental aspect of human life, influencing overall well-being and the ability to lead a fulfilling life. It is a dynamic state of physical, mental, and social well-being, not merely the absence of disease. The importance of health cannot be overstated, as it affects longevity, productivity, and quality of life. A healthy individual can contribute to society, achieve personal goals, and experience a sense of fulfillment. Good health enables people to engage in daily activities effectively, maintain relationships, and pursue ambitions without the constraints of illness or disability.
Influencing Factors of Health
Several factors influence an individual's health, including biological, environmental, social, and lifestyle-related elements:
Genetics: Inherited traits play a crucial role in determining susceptibility to certain diseases and overall health conditions.
Environment: Clean air, safe drinking water, and proper sanitation contribute to overall health, while pollution and hazardous surroundings can cause health issues.
Nutrition: A balanced diet rich in essential nutrients helps maintain good health, prevent diseases, and support growth and development.
Physical Activity: Regular exercise strengthens muscles, improves cardiovascular health, and enhances mental well-being.
Mental Health: Psychological well-being is as important as physical health. Stress, anxiety, and depression can impact overall health.
Social Factors: Economic status, education, and community support affect access to healthcare and healthy lifestyle choices.
Healthcare Access: Availability and affordability of healthcare services determine the ability to prevent, diagnose, and treat illnesses.
Health and Behaviour
Health and behavior are closely linked. Personal habits and lifestyle choices significantly impact overall health. Unhealthy behaviors such as smoking, excessive alcohol consumption, poor diet, and sedentary lifestyles can lead to chronic diseases such as diabetes, hypertension, and cardiovascular diseases. On the other hand, adopting healthy habits like regular exercise, balanced nutrition, and stress management contributes to overall well-being.
Health Beliefs
Health beliefs shape an individual's approach to well-being and medical care. Cultural, religious, and personal beliefs influence how individuals perceive health and illness. Some may rely on traditional remedies, while others trust modern medicine. Understanding these beliefs is crucial for effective healthcare interventions and health promotion efforts.
Advantages of Good Health
Maintaining good health provides several advantages, including:
Increased life expectancy
Enhanced productivity and efficiency
Better mental health and emotional stability
Improved quality of life
Reduced healthcare costs and burden on medical systems
Greater ability to handle stress and challenges
Enhanced social and family relationships
Health and Society
The heaBeyond Work, Pieter Stalenhoef Maintains an Active Lifestyle
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Aspiring Author Pieter Stalenhoef is presently employed as a financial advisor for Santander Investment Services in Greater Boston, Massachusetts. Outside of work, Stalenhoef leads an active life with hobbies like tennis, skiing, and cycling that keep him busy.Hashtag Magazine March Issue 2025 | Top News Magazine online in India
Hashtag Magazine March Issue 2025 | Top News Magazine online in Indiasrinuhashtag
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Read your favourite magazines anywhere, anytime. Enjoy unlimited access to our archives. Free download the latest March Issue 2025 on the India's premium lifestyle Hashtag Magazine published by Sinduri VuppalaSustainable Fashion Presentation (1).pptx
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The fashion industry is undergoing a transformative shift towards sustainability as global concerns about climate change and resource depletion grow. Consumers, brands, and designers are increasingly prioritizing eco-friendly materials, ethical production practices, and reducing waste.
Must have mens accessories and Casual Wear
Must have mens accessories and Casual WearStylish Sequins
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Men's shops in Shahabad began with a simple yet profound vision: to redefine the fashion industry by offering clothing that not only looks good but also feels good. We noticed a gap in the market where style often compromised comfort, and vice versa. Determined to bridge this divide, we set out to create a brand that marries the two seamlessly.How the Rollerblade Inline Skate Came About
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From 18th century origins to modern innovations, inline skating has transformed through centuries of design improvements.
How Rinipo Reduces Waste in Manufacturing.pptx
How Rinipo Reduces Waste in Manufacturing.pptxrinipoblogmanisha23
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In a time when sustainability matters more than anything else, corporations are going the extra mile in finding means of reducing their footprints on the environment. In the numerous enterprises that are seizing this challenge, Rinipo takes the lead by minimizing waste generated in manufacturing. Through the deployment of advanced technology and creative tactics, Rinipo is not just enhancing its own efficiency in business but also making a new norm for sustainable business practices.
Allan Kinsella-Biography, Director Assurance, Ministry for Primary Industries
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Allan Kinsella is a leadership expert, former military officer, and public service professional with experience in crisis management and strategic assurance. Explore his SpeakerHub profile to learn more about his insights and expertise.Why Is Minneapolis Home to Some of the Best Spas in the Midwest.pdf
Why Is Minneapolis Home to Some of the Best Spas in the Midwest.pdfHalo Healing Therapies North Loop
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A spa in Minneapolis offers the perfect escape for relaxation and self-care. Whether youre looking for a deep-tissue massage, a rejuvenating facial, or a full-body treatment, the city has a variety of wellness centers to choose from. Many spas provide specialized services such as aromatherapy, hot stone therapy, and hydrotherapy. You can also enjoy organic skincare treatments, meditation spaces, and holistic healing therapies. From luxurious retreats to small boutique wellness spots, a spa in Minneapolis caters to every need, ensuring a peaceful and refreshing experience for both locals and visitors seeking to unwind and rejuvenate.Why Is Minneapolis Home to Some of the Best Spas in the Midwest.pdf
Why Is Minneapolis Home to Some of the Best Spas in the Midwest.pdfHalo Healing Therapies North Loop
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