Friday, May 22, 2020

Where Whales Have Hair and How Its Used

Whales are mammals, and one of the characteristics common to all mammals is the presence of hair. We all know that whales arent furry creatures, so where do whales have hair? Whales Do Have Hair While its not immediately obvious, whales do have hair.  There are over 80 species of whales, and hair is only visible in some of these species. In some adult whales, you cant see hair at all, as some species only have hair when they are fetuses in the womb. Where Is Hair in Whales? First, lets look at baleen whales. Most of the baleen  whales have hair follicles if not visible hair. The location of the hair follicles is similar to the whiskers in terrestrial mammals. They are found along the jawline on the upper and lower jaw, on the chin, along the midline on top of the head, and sometimes along the blowhole. Baleen whales known to have hair follicles as adults include  humpback, fin, sei,  right,  and  bowhead  whales. Depending on the species, the whale may have 30 to 100 hairs, and there are usually more on the upper jaw than the lower jaw.   Of these species, the hair follicles are probably most visible in the humpback whale, which  has golf ball-sized bumps on its head, called tubercles, which house the hairs. Within each of these bumps, called tubercles, there is a hair follicle. The toothed whales, or odontocetes, are a different story. Most of these whales lose their hair shortly after birth. Before theyre born, they have some hairs on the sides of their rostrum or snout. One species, though, has visible hairs as an adult. This is the  Amazon river dolphin or boto, which has stiff hairs on its beak. These hairs are thought to add to the botos ability to find food on muddy lake and river bottoms. If you want to get technical, this whale doesnt quite count as marine life, as it lives in fresh water. Hairlike Baleen Baleen whales  also have hairlike structures in their mouth called baleen, which is made of keratin, a protein that is also found in hair and nails. How Is the Hair Used? Whales have blubber to keep them warm, so they dont need fur coats. Having hairless bodies also helps whales release heat more easily into the water when they need to. So, why do they need hair? Scientists have several theories on the purpose of the hair. Since there are lots of nerves in and around the hair follicles, they are likely used to sense something. What that is, we dont know. Perhaps they can use them to sense prey - some scientists have suggested that prey may brush against the hairs, and allow the whale to determine when it has found a high enough prey density to begin feeding (if enough fish bump against the hairs it must be time to open up and eat). Some think that the hairs may be used to detect changes in water currents or turbulence. It is also thought that the hairs may have a social function, perhaps being used in social situations, by calves communicating a need to nurse, or perhaps in sexual situations. Sources Goldbogen, J.A., Calambokidis, J., Croll, D.A., Harvey, J.T., Newton, K.M., Oleson, E.M., Schorr, G., and R.E. Shadwick. 2008. Foraging behavior of humpback whales: kinematic and respiratory patterns suggest a high cost for a lunge. J Exp Biol 211, 3712-3719.Mead, J.G. and J.P. Gold. 2002. Whales and Dolphins in Question. Smithsonian Institution Press. 200pp.Mercado, E. 2014. Tubercles: What Sense Is There? Aquatic Mammals (Online).Reidenberg, J.S. and J.T. Laitman. 2002. Prenatal Development in Cetaceans.  In Perrin, W.F., Wursig, B. and J.G.M. Thewissen. Encyclopedia of Marine Mammals. Academic Press. 1414pp.Yochem, P.K. and B.S. Stewart. 2002. Hair and Fur.  In  Perrin, W.F., Wursig, B. and J.G.M. Thewissen. Encyclopedia of Marine Mammals. Academic Press. 1414pp.

Thursday, May 7, 2020

The Co Existence Of Feminism And Naturalism - 1625 Words

Claire Schenken Mr. Carroll English IV AP 20 October 2014 The Co-Existence of Feminism and Naturalism in The Awakening As the book that simultaneously killed Kate Chopin’s career and synthesized traditional literary features, such as romanticism, with their new opponents feminism and naturalism, The Awakening bares a weighted name. The Victorian-era setting in which it was also written can be greatly accredited to these ideas, as the influx of new ideas regarding society, gender roles, and human life and love were upcoming and increasingly present, especially in the free-thinking Creole society that The Awakening’s protagonist, Edna Pontellier, resided. Chopin implements these new ideas through both naturalist and feminist values in her†¦show more content†¦Chopin’s integration of naturalist and feminist values throughout Edna’s rebellion against society are key in understanding the repression Edna felt. Both values can be primarily seen in Chopin’s contrast of Edna and her close friend Adele. Edna goes to reject the feminist attributes of Adele, who fit i nto society as one of the mother-women who â€Å"†¦idolized their children, worshipped their husbands, and esteemed it a holy privilege to efface themselves as individuals and grow wings as ministering angels† (Chopin 51). Edna’s defiance of a standard patriarchal society embraces feminism as Chopin mocks society’s idea of women-as-angels and instead portrays her as a mother, but not a mother-woman, as her children do not define her like Adele’s do. Naturalist views are additionally seen through Edna’s relationship with Adele, a traditional Creole woman who â€Å"†¦[spoke] her mind, assert[ed] her sexuality, and otherwise [broke] loose from the constraints of convention (Fleissner 238). Viewing this complex combination of Creole’s freedom of speech and affection with restrictions on sexual autonomy, we must look solely to naturalism to understand Edna and Adele’s differences. While Edna is unfamiliar and confused by affecti on, as seen by Adele’s touch, Adele is comfortable with her identity as a sexual being and a mother-woman. This acceptance of life as a mother-woman can be explained by her natural

Wednesday, May 6, 2020

ADHD Nutrition Free Essays

ADHD is a disease which weakens the release and homeostasis of neurological chemicals. In full the initials stand for Attention Deficit Hyperactivity Disorder. Research shows that ADHD is a hereditary disorder that is it can be passed on through genes. We will write a custom essay sample on ADHD Nutrition or any similar topic only for you Order Now Its occurrence comes with many other disorders such as being defiant, learning disorders and other behavioral disorders ( Paul, 2000 p.4 ) There are no specific laboratory tests to establish this condition. The diagnosis can be made upon the parents careful evaluation of their past to see whether they could have had symptoms similar to those that are clear indicators of the disease. Useful tests to diagnose the condition can be through achievement tests that can be used to measure the learner’s learning disorders. Drugs used to treat the disorder are noted to be very addictive. However, psychological treatment can be very helpful. It is also important to note that the drugs used are only used to control the situation and not to treat it. Symptoms of this condition include being restless, lack of concentration, and if there is some, they last for a short time, the child is easily distracted, engagement in excess activities and being impulsive. It can also lead to many allergies to additives and food dyes. More boys are affected by this condition by girls, a phenomenon that has been explained as being as a result of the aggressive nature of boys as opposed to the girls. Many people believe that there is a relationship between food additives and hyperactivity which is seen in this condition called ADHD. The question as to whether there is a relation between nutrition is a claim that has no scientific proof. Many scientists have ended their researches inconclusively. Though claims that there are causes of ADHD that are related to diet–specifically a diet that contains food additives or is high in sugar–and allergies, these claims were seriously investigated by a number of scientists and according to Paul, ( 2000 ) â€Å"many parents whose children are affected by this condition participated† ( p.42 ) Their concern was whether sugar could cause the symptoms of ADHD. Scientific studies show that sugar and carbohydrates cannot cause the symptoms of ADHD, but rather children with this condition can react with sugars in differently from the rest. However, there are no marked effects identified. In fact in one study ADHD children’s reaction to carbohydrates was better than that for proteins surprisingly. This fact also applies with the vitamins and ADHD. Regulated intake can help the situation rather than the exaggerated belief that it causes ADHD related symptoms. Neither too much sugar nor deficiency in vitamins can cause ADHD. The condition cannot be improved by excessive intake of vitamins as the results might be negative since some vitamins when taken in excess can be harmful.   The other causes identified include lead poisoning which has been known for a long time as a major cause of psychological problems. Its interesting that even those children who have not consumed lead can develop the condition may be as a result of breathing in or rather inhaling fumes from the vehicles, nearby industries especially for those in urban centers. Even though many researchers try to dissociate ADHD with nutrition, there is further evidence that reduction of certain additives in foods can be a good way of reversing the condition. It has also been observed that the blood of children suffering from this condition has a low DHA fat level. In addition, beneficial nutrients from greens, certain fish, and an adequate level of the DHA fats is a superb way of reversing such conditions in children who suffer from this condition. Recommended dose for the DHA fat is 100mg to 600 mg, according to the age and condition of the child. How to cite ADHD Nutrition, Papers

Monday, April 27, 2020

Mansa Musa Essay Example

Mansa Musa Essay Because of IM, we stayed strong for almost two hundred years. Mans MUSM always wanted the best for his kingdom, and had to make sacrifices along the way to get It where It Is today. Mans MUSM filled the criteria of a leader perfectly, If not better than prior leaders such as Sundials. When Sundials died, Mans MUSM, a skilled military leader, took over and expanded Mall greatly. He appointed governors to rule the provinces that he had taken over. These governors ruled fairly and efficiently under Mans Musss rule. This shows how Mans MUSM deeply cared about the lives of his clansman, and made sure all areas of his kingdom were fairly ruled over. He built mosques in Timeout, an important trading city, which attracted numerous Muslims that helped the kingdom of Mali prosper. It attracted judges, doctors, religious leaders, and scholars. This just goes to show you how skillful he was, and how he skillfully attracted important people to his kingdom. When Mans MUSM decided to go on his hajj to Mecca, he had it all planned out. He wanted this trip to be unforgettable, and to give others around the world a reason to come to Mali. He brought sixty thousand people with him, 500 being slaves. He also brought 100 camels, and in total, 192,000 ounces of gold. In no way was he shy about his surplus of gold, for showing off his riches was the point of the trip. One of his most famous stops along the way was when he went to Cairo and gave away so much gold, Cairo suffered a horrible inflation period where their money was basically worthless, and didnt get their money system back to normal for about ten years. We will write a custom essay sample on Mansa Musa specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Mansa Musa specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Mansa Musa specifically for you FOR ONLY $16.38 $13.9/page Hire Writer By showing off the gold, and handing showering the lands he passed with it, it made others want more, and made them want to come to Mali, instead of him having to cross the Sahara to get to them. Even though he took gold from his people, it was used for the better. Because of this trip counterclaiming Mali and its surplus of gold, mapmakers started showing Mali on their maps, and more traders started braving the cruel weather of the Sahara to go to Mali. Also we got a more efficient trade route. Along with this, Muslim schools and architecture started to be built In Mall, bringing a more concrete education and religion to the kingdom. Overall, Mans MUSM gambled his position as ruler over Mali by making the trip across the Sahara to Mecca. By doing this, he lost followers, but also gained more respect from his even more devoted citizens. He united his kingdom, attracted Europeans and other provinces to Mall for trade, and In the long run, saved money and the lives of those who would have had to do that trip numerous times Just to trade. He made the smart decision to spend lots of money to take one trip, then a good amount of money numerous times Just to trade every so often with neighboring kingdoms. Mans MUSM made history by taking this pilgrimage, and got his kingdom on several maps seen my thousands of people. For some, teen may De Electroplates Tanat Mans MUSM Detracted teen, Duty Tort ten rest of us, we thank him for his bold move, and talent in advertising for making Mali not just one of several kingdoms of Africa, but a well recognized, and prosperous kingdom of Africa.

Thursday, March 19, 2020

Free Essays on Teaching African American Youth

Education does not only occur within the formal school setting. A child’s first education occurs in the family and community. It is here that children learn their history and what is expected and accepted in way of aspirations, values, and beliefs of their culture. Research has shown a significant importance between the relationship of home and school as related to school achievement. Children who are enrolled in schools that reflect their culture and values of the their communities tend to do better. Unfortunately regardless of these findings the majority of African American students continue to attend schools that do not reinforce their family and community culture, values and aspirations, and beliefs. Though families and communities continue to educate their children, these children do at some point enter formal education venues. It is here in this formal education that the aspirations, history, expectations, values, and culture of American society is reflected. Many African Americans find incompatibility between their formal and informal educations. Since the majority of formal American education does not reinforce African American principles of family and community. African American children find themselves having to live and function through biculturalism. The purpose of this paper is to focus on the education of young African American students and the understanding that their teachers have of their culture. The elementary teacher who fails to understand the cultures of their students will negatively affect the young child’s cognitive abilities and cause frustrations and tensions. The first eighteen years of a child’s life is spent in some form of an educational institution. The school experience is crucial and a detrimental experience for children. The cognitive development, educational achievement, and future educational attainment and lifestyle are all affected by the school experience. In the begin... Free Essays on Teaching African American Youth Free Essays on Teaching African American Youth Education does not only occur within the formal school setting. A child’s first education occurs in the family and community. It is here that children learn their history and what is expected and accepted in way of aspirations, values, and beliefs of their culture. Research has shown a significant importance between the relationship of home and school as related to school achievement. Children who are enrolled in schools that reflect their culture and values of the their communities tend to do better. Unfortunately regardless of these findings the majority of African American students continue to attend schools that do not reinforce their family and community culture, values and aspirations, and beliefs. Though families and communities continue to educate their children, these children do at some point enter formal education venues. It is here in this formal education that the aspirations, history, expectations, values, and culture of American society is reflected. Many African Americans find incompatibility between their formal and informal educations. Since the majority of formal American education does not reinforce African American principles of family and community. African American children find themselves having to live and function through biculturalism. The purpose of this paper is to focus on the education of young African American students and the understanding that their teachers have of their culture. The elementary teacher who fails to understand the cultures of their students will negatively affect the young child’s cognitive abilities and cause frustrations and tensions. The first eighteen years of a child’s life is spent in some form of an educational institution. The school experience is crucial and a detrimental experience for children. The cognitive development, educational achievement, and future educational attainment and lifestyle are all affected by the school experience. In the begin...

Monday, March 2, 2020

How to Conjugate the Verb Trovare in Italian

How to Conjugate the Verb Trovare in Italian â€Å"Trovare†, despite its common definition of â€Å"to find†, is actually a diverse verb that’s worth taking the time to get to know, so here are examples and conjugation tables to help you do just that. Some Definitions of â€Å"Trovare† To findTo come upon/acrossTo meet (with)To thinkTo believe What to Know About â€Å" Trovare† It’s a  regular verb, so it follows the typical -are verb ending pattern.It’s a transitive verb, so it takes a direct object.The infinito is â€Å"trovare†.The participio passato is â€Å"trovato†.The gerund form is â€Å"trovando†.The past gerund form is â€Å"avendo trovato†. INDICATIVO/INDICATIVE Il presente io trovo noi troviamo tu trovi voi trovate lui, lei, egli,ella trova essi, Loro trovano Esempi: Orvieto à ¨ bellissimo, non trovi? - Orvieto is beautiful, don’t you think?Trovo che questo abito ti stia benissimo! - I think this dress looks great on you!Non lo trovo!! - I can’t find it! Il passato prossimo io ho trovato noi abbiamo trovato tu hai trovato voi avete trovato lui, lei, Lei, ha trovato essi, Loro hanno trovato Esempi: Hai trovato gli occhiali? - Did you find your glasses?La cena a casa di Alessia l’ho trovata deliziosa. - I thought the dinner at Alessia’s was delicious. L’imperfetto io trovavo noi trovavamo tu trovavi voi trovavate lui, lei, Lei trovava essi, Loro trovavano Esempi: Da bambina lo trovavo molto bello.   - From when I was a little girl, I thought he was really handsome.Scusa, ho fatto tardi ma non trovavo le chiavi. - Sorry, I’ve been late but I couldn’t find the keys. Il trapassato prossimo io avevo trovato noi avevamo trovato tu avevi trovato voi avevate trovato lui, lei, Lei aveva trovato essi, Loro avevano trovato Esempi: Mi disse che aveva trovato un fidanzato. - She told me that she had found a boyfriend. Il passato remoto io trovai noi trovammo tu trovasti voi trovaste lui, lei, Lei trov essi, Loro trovarono Esempi: Quando ero in Italia, trovai una bellissma borsa di pelle. - When I was in Italy, I found a beautiful leather purse.Tutti trovarono la sua battuta poco appropriata. - Everybody believed his joke was  inappropriate. Il trapassato remoto io ebbi trovato noi avemmo trovato tu avesti trovato voi aveste trovato lui, lei, Lei ebbe trovato essi, Loro ebbero trovato TIP: This tense is rarely used, so don’t worry too much about mastering it. You’ll find it in very sophisticated writing. Il futuro semplice io trover noi troveremo tu troverai voi troverete lui, lei, Lei trover essi, Loro troveranno Esempi: Fidati, troverai il lavoro dei tuoi sogni!   - Trust me, you’ll find your dream job. Il futuro anteriore io avr trovato noi avremo trovato tu avrai trovato voi avrete trovato lui, lei, Lei avr trovato essi, Loro avranno trovato Esempi: Vedi i suoi occhi sdolcinati? Avr trovato l’amore della sua vita! - Do you see his lovestruck  eyes? He must have found the love of his life! CONGIUNTIVO/SUBJUNCTIVE Il presente che io trovi che noi troviamo che tu trovi che voi troviate che lui, lei, Lei trovi che essi, Loro trovino Esempi: Spero che troviate la casa perfetta per voi. - I hope that you find the perfect house. Il passato io abbia trovato noi abbiamo trovato tu abbia trovato voi abbiate trovato lui, lei, Lei abbia trovato essi, Loro abbiano trovato Esempi: Credo che il suo ex l’abbia trovata su Facebook! - I think her ex found her on Facebook! L’imperfetto io trovassi noi trovassimo tu trovassi voi trovaste lui, lei, Lei trovasse essi, Loro trovassero Esempi: Non sapevo che lui trovasse una ragazza a Roma. - I didn’t know that he found a girlfriend in Rome. Il trapassato prossimo io avessi trovato noi avessimo trovato tu avessi trovato voi aveste trovato lui, lei, Lei avesse trovato essi, Loro avessero trovato Esempi: Vorrei che avessimo trovato il tuo nonno. - I wish we could have found your grandfather.Te l’avrei detto se l’avessi trovato! - I would have told you if I had found it! CONDIZIONALE/CONDITIONAL Il presente io troverei noi troveremmo tu troveresti voi trovereste lui, lei, Lei troverebbe essi, Loro troverebbero Esempi: Digli la verit! Lui troverebbe fantastico che tu voglia trasferirti in Italia. - Tell him the truth! He  would think it’s great that you want to move to Italy. Il passato io avrei trovato noi avremmo trovato tu avresti trovato voi avreste trovato lui, lei, Lei avrebbe trovato essi, Loro avrebbero trovato Se tu fossi stato pià ¹ grande, avresti trovato Milano molto interessante. - If you had been older, you would have thought Milan was very interesting.

Saturday, February 15, 2020

Working in groups Essay Example | Topics and Well Written Essays - 250 words

Working in groups - Essay Example Successful group work requires tolerance, inclusivity and assertiveness to achieve the desired goal. Group communication is known as the interaction of three or more interdependent people who work towards a certain goal. Successful groups learn how to balance the contradictory and competing forces that operate in that group. The entire group should be able to work should know their roles and be able to establish professional rapport with other members of the group (Ephross 56). The merit of working in a group is the group members learn a great deal from each other thereby performing better than individual working alone. The demerit is conflicts may be difficult to solve. When I was in high school, I had difficulties in understanding Chemistry but good in Mathematics. My friends and I decided to form a study group. In this group I found out that there were people who were good in Chemistry but poor in Mathematics. We helped each other and by the time the final exam reached, we were well prepared and the entire group member excelled. Steinberg’s book, The mutual-aid approach to working with groups offer imperative information on how effective a group can be. The key message that is passed across is forming a group that works for you and establishing clear goals. The group member should know each other so as to avoid misunderstandings (Steinberg 78). In conclusion, group work requires tolerance, inclusivity and assertiveness to achieve the desired goal. For any group to work effectively, all members should understand their roles within the group. Each member should actively contribute towards the set goals. The group members should be able to solve any issue that comes up amicable. To be able to do this, there should be effective communication amongst all group members. Without communication there is nothing constructive that that can take place in a