Blindness in the Mexican tetra fish is a controversy among scientists whom have long-debated the mechanism of this evolutionary change. The Mexican tetra fish‚ Astyanax mexicanus‚ exists in two morphs: a sighted surface form and a blind cavefish form. The debate amongst scientists is rooted in the process by which the Mexican tetra became blind. Evolution demands progress‚ yet the blind Mexican tetra suggests regression‚ as it lost its vision over time. However‚ through the continuous studies of
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In recent years‚ Breast Cancer Survivor (BCS) Dragonboat teams have organized in a number of countries‚ providing the opportunity for women diagnosed with breast cancer to engage in International paddling competitions. Participation in active whole body exercise‚ such as paddling‚ using large skeletal muscles are proving beneficial for recovery from cancer treatment after effects. This presentation will provide data from an Internet answered by 750 women. 356 947% were aged 60-86‚ from teams in
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Introduction Fluorouracil is a pyrimidine simple and is utilized as a part of malignancy treatment. It is a suicide inhibitor and works through irreversible restraint of thymidylate synthase. It fits in with the group of medications which is known as the antimetabolites 5-Fluorouracil (5-FU) is a cytotoxic medication. It hinders the creation of pyrimidine. They are utilized as a part of the treatment of a few diseases‚ for example‚ head and neck tumor (squamous cell carcinoma)‚ nasopharyngeal carcinoma
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Intussusception describes a condition in which one segment of the intestine (the intussusceptum) telescopes or invaginates into the lumen of an adjacent segment of intestine (the intussuscipiens). The most common neoplasms that cause adult intussusception are adenocarcinoma‚ lymphomas‚ GIST‚ metastatic melanoma‚ and rarely lipomas [6] Several possible mechanisms have been proposed to explain secondary intussusception ; one of them is the tumor acts as a foreign body causing violent peristalsis leading
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Cancer is a complex disease that can destroy lives. It hurts the patient mentally‚ physically‚ and emotionally. A cancer diagnoses can cause many things such as stress‚ which has been shown to be harmful in long bouts (Whitehead et al.‚ 2013). Before‚ cancer was treated in ineffective and odd ways (Jones‚ 1911). Now‚ with modern medicine‚ cancer can be fought with a range of life saving treatments. A common treatment option for cancer patients is chemotherapy. Chemotherapy in itself is as intricate
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Retinoblastoma is a rare cancer disease that affects the retina with a malignant tumor normally affecting young children from infants to small children around the age of five and rarely affecting adults. Retinoblastoma is autosomal dominant‚ meaning it’s present on the non-sex chromosomes and because it is dominant‚ and Mendel’s Law of Dominance claims that some genes are dominant and are over the recessive genes which prevents the recessive gene from being present. Retinoblastoma forms during pregnancy
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The characteristics of a healthy cell and a cancer cell is very different. Healthy cells stop reproducing when there are enough cells‚ however‚ cancer cells continue to reproduce. Due to this continued growth a tumor‚ which is a cluster of cancer cells‚ is formed. Cancer cells do not interact with other cells like the healthy cells. Healthy cells stop growing when they hear signals from the nearby cells‚ in contrast‚ cancer cells do not respond to these signals. When healthy cells get old or damaged
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Thyroid Cancer Thyroid cancer is a cancerous tumor or growth located within the thyroid gland.Thyroid cancer is the most common endocrine cancer. Thyroid cancer is one of the few cancers that has increased in incidence rates over recent years. It occurs in all age groups from children through seniors. The American Cancer Society estimates that there will be about 62‚450 new cases of thyroid cancer in the U.S. in an average year. Of these new cases‚ about 47‚230 will occur in women and about
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Cancer is the worlds biggest killer. Cancer is a disease caused by an uncontrolled division of abnormal cells in different parts of the body. The mystery of this disease is so great many societies and cultures leave it out and never discuss it. Cancer is a widespread disease. During the years of 2000 to 2015‚ cancer has had a profound impact on individuals worldwide. Cancer is the 2nd leading cause of death right under heart disease and is only on an uprise. One in eight deaths are cancer related
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Despite the obvious benefits of 3D printing in the medical field‚ many people are opposed to the use of 3D printing for manufacturing implants. Opposing arguments claim that 3D printing creates unhealthy air emissions and that 3D printing materials are not safe. The form additive manufacturing called fused filament fabrication heats plastic and layers it to create 3D objects. When the plastic is heated it can release chemicals into the air that have been known to cause cancer. Some people argue that
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