Testicular cancer involves the malignant transformation of normal gonocytes into germ cell tumours. It is the most common malignancy amongst men aged 15-35 years‚ and has a current cure rate of 90%‚ however incidence amongst Caucasian males is steadily rising.1 There are three main types: teratoma‚ usually neonates and children; seminoma/nonseminoma‚ occurs in men >15 years old; and spermatocytic seminoma which occurs in men >50 years old. Seminoma/nonseminoma are the most common‚ and only malignant
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Estradiol is an estrogen sex hormone and is commonly consumed by women experiencing menopause or osteoporosis (Scutti). Additionally‚ dihydrotestosterone (5α-DHT) is an androgen sex hormone that is responsible for the development of the penis and the prostate in fetuses (Newman). Both sex hormones are believed to perpetuate ASD which is thought to be linked to sex hormones. In order to test this‚ pregnant rats were injected
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The Benefits of Triphasic Contraceptives A review of the benefits of triphasic combined oral contraceptives when compared to today’s low-dose monophasic alternatives. Introduction: Since their introduction in 1961‚ oestrogen-progestogen combined oral contraceptive (COC) pills have provided women with an effective and effortless means of contraception for 50 years [1]. Taken by 17% of all women of reproductive age‚ they are amongst the most widely prescribed drugs in the U.K. today[2]. Hitherto
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SCIENCE (GOVERNMENTAL MODEL QUESTION PAPER) Time Allowed :2.30 Hours] [ Maximum Marks : 75 Instruction: Check the question paper for fairness of printing. If there is any lack of fairness‚ inform the Hall Supervisor immediately. Note :This question paper contains three Sections. SECTION -I (Marks: 15) Note : i) Answer all the 15 questions. ii) Choose the correct answer from the four alternatives given in the brackets. 15 x 115 1. Theory of natural selection was proposed by (Charles Darwin
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management of the important roles in the society. “The basic biological facts are undisputed: Only women can bear and nurse children‚ and‚ on the average‚ men are bigger‚ stronger‚ and faster than women. Adult male bodies also contain a higher amount of androgen than adult female bodies. However‚ people are never content with observing these simple
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* Question 1 | | | The period of time when secondary sexual characteristics begin to develop and the potential for sexual reproduction is reached is called [a] . The first menses is called [b] ‚ and the permanent cessation of menses is called [c] | | | | | | | | | | | Correct Answers for: a | puberty | Correct Answers for: b | menarche | Correct Answers for: c | menopause | | | | | * Question 2 | | | Spermatogenesis does not occur at normal core body
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The Endocrine System Controls many body functions ~exerts control by releasing special chemical substances into the blood called hormones ~Hormones affect other endocrine glands or body systems Derives its name from the fact that various glands release hormones directly into the blood‚ which in turn transports the hormones to target tissues via ducts. Exocrine glands-transport their hormones to target tissues via ducts. Endocrine glands- secrete hormones into the bloodstream The Endocrine
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Chapter 6 Osseous Tissue and Bone Structure 1. classifications of bones by shape (1) long bone - long and thin - arm and forearm‚ thigh (femur) and legs‚ palms‚ soles‚ fingers‚ toes (2) flat bone - thin with parallel surfaces - skull‚ sternum‚ rib‚ scapulae (3) sutural bone (Wormian bones) - small‚ irregular bones - between flat bones of the skull (4) irregular bone - complex shapes with short‚ flat‚ notched‚ or ridged surfaces - spinal vertebrae‚ the bones of the pelvis‚ and several
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1. What is metabolic absorption? “All the cells take in and use nutrients and other substances from their surroundings. Cells of the intestine and the kidney are specialized to carry out absorption. Cells of the kidney tubules reabsorb fluids and synthesize proteins. Intestinal epithelial cells reabsorb fluids and synthesize protein enzymes” (McCance & Huether‚ pg. 2). 2. What uses oxygen to remove hydrogen atoms in an oxidative reaction? “Peroxisomes are so named because they usually contain
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INTRODUCTION Child abuse and neglect can produce serious and long-lasting damage. The range of actions classified as child abuse or neglect is constantly changing as a result of social and economic conditions‚ political ideology‚ advances in medicine‚ improvements in communication and melding of cultures. Today‚ child abuse and neglect is widely recognized as a major social problem and policy issue throughout much of the world. During the last 50 years‚ the United States and many of the world’s
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