Young adult literature ( YA ) is typically written for readers aged 12 to 18 and includes most of the themes found in adult fiction, such as friendship, substance abuse, alcoholism, and sexuality. Stories that focus on the challenges of youth may be further categorized as social or coming-of-age novels .
121-391: The Giver is a 1993 American young adult dystopian novel written by Lois Lowry , set in a society which at first appears to be utopian but is revealed to be dystopian as the story progresses. In the novel, the society has taken away pain and strife by converting to "Sameness", a plan that has also eradicated emotional depth from their lives. In an effort to preserve order,
242-439: A 2014 study shows that using Laurie Halse Anderson 's novel Speak aided in discussions on consent and complicity. Those who read about tough situations like date rape are more emotionally prepared to handle the situation if it arises. It is important to use diverse literature in the classroom, especially in discussing taboo topics, to avoid excluding minority students. Literature written for young adults can also be used as
363-700: A 2018 conference of educators found that the most frequently taught YA texts in America from 2013 to 2018, ordered from most to least taught, were Speak , The Absolutely True Diary of a Part-Time Indian , The Giver , The Outsiders , The House on Mango Street , American Born Chinese , Monster , The Book Thief , Persepolis , and The Perks of Being a Wallflower . Many young adult novels feature coming-of-age stories. These feature adolescents beginning to transform into adults, working through personal problems, and learning to take responsibility for their actions. YA serves many literary purposes. It provides
484-413: A 2020 question-and-session, Lowry stated that the calls for banning have usually come from parents and others who have not read the book, but only seen descriptions or out-of-context quotes; and that those who have called for its banning have usually changed their mind after reading it. Lowry has stated that she is against any censorship, and that no literature should be considered off-limits. Some have noted
605-485: A color blindness within the community that cannot be aware of the effects of the absence of color. She likens the lack of difference and literal color blindness of The Giver ' s community with color blind attitudes that act as if racial difference does not exist, and suggests that the book shows the way that colorblindness erases people of color and their experiences through their lack of visibility. Kyoungmin and Lee examine Jonas's growing ability to see color rather than
726-419: A comic book adaptation in spring 2019 illustrated and adapted by Eisner and Harvey Award winner P. Craig Russell . In the fall of 1994, actor Bill Cosby and his ASIS Productions film company established an agreement with Lancit Media Productions to adapt The Giver to film. In the years following, members of the partnership changed and the production team grew in size, but little motion was seen toward making
847-446: A departure from her well-known and favorably regarded realistic works, Lois Lowry has written a fascinating, thoughtful science-fiction novel... The story is skillfully written; the air of disquiet is delicately insinuated. And the theme of balancing the virtues of freedom and security is beautifully presented." The Giver has been a frequent subject of bans, or attempted bans, in school libraries, due to its dark themes and violence. In
968-664: A family history of fraternal twins have a higher chance of producing fraternal twins themselves, as there is a genetically linked tendency to hyper- ovulate . There is no known genetic link for identical twinning. Other factors that increase the odds of having fraternal twins include maternal age, fertility drugs and other fertility treatments, nutrition, and prior births. Some women intentionally turn to fertility drugs in order to conceive twins. The vast majority of twins are either dizygotic (fraternal) or monozygotic (identical). In humans dizygotic twins occur more often than monozygotic twins. Less common variants are discussed further down
1089-581: A family. He has pale eyes, like Jonas and the Giver. Jonas grows attached to him, especially when Jonas finds that he can receive memories. If Gabriel does not increase in strength, he will be "released from the Community"—in common speech, taken Elsewhere. This has happened to an off-course air pilot, to chronic rule breakers, to elderly people, and to the apprentice Rosemary. After Jonas speculates about life in Elsewhere,
1210-547: A genre". In 1942, Seventeenth Summer – called by some the first young adult novel – by 17 years old Maureen Daly, was published. Its themes were especially relevant to teenagers, underaged drinking, driving, dating, and angst. Another early example is the Heinlein juveniles , which were science fiction novels written by Robert A. Heinlein for Scribner's young-adult line, beginning with Rocket Ship Galileo in 1947. Scribner's published eleven more between 1947 and 1958, but
1331-490: A greater chance of dizygotic multiple births. In the United States it has been estimated that by 2011 36% of twin births resulted from conception by assisted reproductive technology . The risk of twin birth can vary depending on what types of fertility treatments are used. With in vitro fertilisation (IVF), this is primarily due to the insertion of multiple embryos into the uterus. Ovarian hyperstimulation without IVF has
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#17328523517671452-622: A lack of books with a main character who is a person of color , LGBT , or disabled . In the UK 90% of the best-selling YA titles from 2006 to 2016 featured white, able-bodied, cis-gendered, and heterosexual main characters. The numbers of children's book authors have shown a similar lack of diversity. Between 2006 and 2016, eight percent of all young adult authors published in the UK were people of color. Some consider diversity beneficial since it encourages children of diverse backgrounds to read and it teaches children of all backgrounds an accurate view of
1573-503: A more likely explanation. A high twinning rate has also been observed in other places of the world, including: The widespread use of fertility drugs causing hyperovulation (stimulated release of multiple eggs by the mother) has caused what some call an "epidemic of multiple births ". In 2001, for the first time ever in the US , the twinning rate exceeded 3% of all births. Nevertheless, the rate of monozygotic twins remains at about 1 in 333 across
1694-448: A murderer, Jonas initially refuses to return home, but the Giver convinces him that without the memories, the people of the Community cannot know that what they have been trained to do is wrong. Rosemary was unable to endure the darker memories of the past and instead killed herself with the poison. Jonas and the Giver devise a plan to return the community's memories so they may know where they have gone wrong. Both agree that Jonas will leave
1815-503: A number of definitions, including: Librarians first defined this new category of fiction, in particular librarians from the New York Public Library . The NYPL's first annual Books for Young People list was sent in 1929 to schools and libraries across the country. Then "In 1944 [...] NYPL librarian Margaret Scoggin changed the name of her library journal column from 'Books for Older Boys and Girls' to 'Books for Young Adults', and
1936-460: A pair of monozygotic twins reproduces with another pair or with the same person), rather than first cousins. Identical twins do not have the same fingerprints however, because even within the confines of the womb, the fetuses touch different parts of their environment, giving rise to small variations in their corresponding prints and thus making them unique. Monozygotic twins always have the same genotype . Normally due to an environmental factor or
2057-433: A phenomenon, a work has to "conform to the standards [...] set by the mass media and promoted by the culture industry in general." Zipes complains of similarities between Harry Potter and other well known heroes. Professor Chris Crowe argues that criticism of young adult fiction arises from the fear that the genre will replace classic works. He also suggests that because there is much poorly written young adult fiction, and
2178-405: A pleasurable reading experience for young people, emphasizing real-life experiences and problems in easier-to-grasp ways, and depicts societal functions. An analysis of YA novels between 1980 and 2000 found seventeen expansive literary themes. The most common of these were friendship, getting into trouble, romantic and sexual interest, and family life. Other common thematic elements revolve around
2299-495: A pre-eminent role for speculative fiction in the field, a trend further solidified by The Hunger Games trilogy by Suzanne Collins. The end of the decade saw a number of awards appear such as the Michael L. Printz Award and Alex Awards , designed to recognize excellence in writing for young adult audiences. Philip Pullman 's fantasy trilogy His Dark Materials , published between 1995 and 2000, added another controversial topic to
2420-541: A rate of about 3 in every 1000 deliveries worldwide. The likelihood of a single fertilization resulting in monozygotic twins is uniformly distributed in all populations around the world. This is in marked contrast to dizygotic twinning, which ranges from about six per thousand births in Japan (almost similar to the rate of identical twins, which is around 4–5) to 15 and more per thousand in some parts of India and up to over 20 in some Central African countries. The exact cause for
2541-428: A separate egg and each egg is fertilized by its own sperm cell. Since identical twins develop from one zygote, they will share the same sex, while fraternal twins may or may not. In very rare cases fraternal (and semi- or half-identical ) twins can have the same mother and different fathers ( heteropaternal superfecundation ). In contrast, a fetus that develops alone in the womb (the much more common case in humans)
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#17328523517672662-406: A separate fetus, rather than by the embryo splitting while hatching from the zona pellucida (the gelatinous protective coating around the blastocyst). Monozygotic twins may also be created artificially by embryo splitting. It can be used as an expansion of in vitro fertilization (IVF) to increase the number of available embryos for embryo transfer . Monozygotic twinning occurs in birthing at
2783-573: A stepping stone to canonical works that are traditionally read in classrooms, and required by many school curriculums . In Building a Culture of Readers: YA Literature and the Canon by Kara Lycke, Lycke suggests pairing young adult literature and canon works to prepare young adults to understand the classic literature they will encounter. YA can provide familiar and less alienating examples of similar concepts than those in classic literature. Suggested pairings include Rick Riordan's Percy Jackson series with
2904-541: A study in 2012 found that it is possible for a polar body to result in a healthy fetus. In 2003, a study argued that many cases of triploidy arise from sesquizygotic (semi-identical) twinning which happens when a single egg is fertilized by two sperm and splits the three sets of chromosomes into two separate cell sets. The degree of separation of the twins in utero depends on if and when they split into two zygotes. Dizygotic twins were always two zygotes. Monozygotic twins split into two zygotes at some time very early in
3025-573: A variety of forms— Ray Bradbury 's Fahrenheit 451 comes to mind—but not, to my knowledge, for children. It's well worth telling, especially by a writer of Lowry's great skill. If it is exceedingly fragile—if, in other words, some situations do not survive that well-known suspension of disbelief —well, so be it. The Giver has things to say that cannot be said too often, and I hope there will be many, many young people who will be willing to listen. A review in The Horn Book Magazine stated, "In
3146-474: A very high risk of multiple birth. Reversal of anovulation with clomifene (trade names including Clomid ) has a relatively less but yet significant risk of multiple pregnancy. A 15-year German study of 8,220 vaginally delivered twins (that is, 4,110 pregnancies) in Hesse yielded a mean delivery time interval of 13.5 minutes. The delivery interval between the twins was measured as follows: The study stated that
3267-523: A young boy's adventures on the Mississippi in the nineteenth century". The same description can be applied to its sequel, Huckleberry Finn . Huck is 12 or 13. According to journalist Erin Blakemore, "Though young adult literature had existed since at least Laura Ingalls Wilder 's Little House series , which was published in the 1930s, teachers and librarians were slow to accept books for adolescents as
3388-542: Is "excellently accommodated to the fancies of old or young". A number of works by eighteenth and nineteenth-century authors, though not written specifically for young readers, have appealed to them. Novels by Daniel Defoe , Jonathan Swift , Jane Austen , Walter Scott , Charles Dickens , Lewis Carroll , Robert Louis Stevenson , Mark Twain , Francis Hodgson Burnett , and Edith Nesbit . Alice's Adventures in Wonderland by Lewis Carroll , published in 1865 and one of
3509-447: Is a well-known example of the YA problem novel. Following its publication, problem novels became popular during the 1970s. Librarian Sheila Egoff described three reasons why problem novels resonate with adolescents: A classic example of a problem novel, and one that defined the sub-genre, is Go Ask Alice anonymously published by Beatrice Sparks in 1971. Go Ask Alice is written as
3630-411: Is called a singleton , and the general term for one offspring of a multiple birth is a multiple . Unrelated look-alikes whose resemblance parallels that of twins are referred to as doppelgänger . The human twin birth rate in the United States rose 76% from 1980 through 2009, from 9.4 to 16.7 twin sets (18.8 to 33.3 twins) per 1,000 births. The Yoruba people have the highest rate of twinning in
3751-557: Is difficult. A Wrinkle in Time , written by Madeleine L'Engle in 1960, received over twenty-six rejections before publication in 1962, because it was, in L'Engle's words, "too different," and "because it deals overtly with the problem of evil , and it was really difficult for children, and was it a children's or an adults' book, anyhow?" In 1957 the Young Adult Library Services Association – initially called
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3872-446: Is fertilized to form one zygote (hence, "monozygotic") which then divides into two separate embryos . The chances of having identical twins is relatively rare – around 3 or 4 in every 1,000 births. Regarding spontaneous or natural monozygotic twinning, a 2007 theory related to in vitro fertilization (IVF) proposes that monozygotic twins may be formed when a blastocyst contains two inner cell masses (ICM), each of which will lead to
3993-438: Is inherently amorphous, for its constituent terms “young adult” and “literature” are dynamic, changing as culture and society — which provide their context — change", and "even those who study and teach it have not reached a consensus on a definition". Victor Malo-Juvera, Crag Hill, in "The Young Adult Canon : A Literary Solar System" note that in 2019 there was no consensus on a definition of young adult literature and list
4114-567: Is inside". YA has been integrated into classrooms to increase student interest in reading. Studies have shown that YA can be beneficial in classroom settings. YA fiction is written for adolescents and some believe it to be more relevant to students' social and emotional needs instead of classic literature . Use of YA in classrooms is linked to: Students who read YA are more likely to appreciate literature and have stronger reading skills than others. YA also allows teachers to talk about " taboo " or difficult topics with their students. For example,
4235-611: Is nervous, for there he will be assigned his life's work. He seeks reassurance from his father, a Nurturer (who cares for the infants in the Community) and his mother, an official in the Department of Justice. He is told that the Elders, who assign the children their careers, are always right. The day finally arrives, and Jonas is assembled with his classmates in order of birth. The Chief Elder, who presides, initially passes over Jonas's turn and at
4356-424: Is often labelled "children's literature", Garner himself rejects such a description. Critic Neil Philip, commenting on Garner's early novels, notes that "It may be that Garner's is a case" where the division between children's and adults' literature is "meaningless". Judy Blume author of Are You There God? It's Me, Margaret. (1970), has significantly contributed to children's and young adult literature. She
4477-433: Is possible to have one without the other. The Giver won the 1994 Newbery Medal and has sold more than 12 million copies worldwide. A 2012 survey by School Library Journal designated it as the fourth-best children's novel of all time. It has been the subject of a large body of scholarly analysis, with academics considering themes of memory, religion, color, eugenics and utopia within the novel. In Australia, Canada, and
4598-521: Is revealed in Messenger and Son , companion novels written years later. In 2009, at the National Book Festival , the author joked during a Q&A: "Jonas is alive, by the way. You don't need to ask that question." Lowry has stated that her books all explore "the importance of human connection… the vital need for humans to be aware of their interdependence, not only with each other, but with
4719-473: Is sometimes targeted by critics for religious reasons, including religious debates over the Harry Potter series and Philip Pullman's trilogy His Dark Materials . Criticism has also been leveled at young adult fiction authors for alleged insensitivity to marginalized communities or cultural appropriation . English language young adult fiction and children's literature in general have historically shown
4840-419: Is the most common type of twin. Dizygotic twins, like any other siblings, will practically always have different sequences on each chromosome, due to chromosomal crossover during meiosis . Dizygotic twins share on average 50 percent of each other's genes, the same as siblings that are conceived and born at different times. Like any other siblings , dizygotic twins may look similar , particularly as they are
4961-414: Is usually seen as originating in the 19th century, though there were precursors in the 18th century, like Amelia by Henry Fielding (1751), and Caleb Williams (1794) by William Godwin . They are typically a type of realistic fiction that characteristically depict, in the YA version of this genre, issues such as poverty , drugs , and pregnancy. Published in 1967, S.E. Hinton's The Outsiders
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5082-968: The Percy Jackson & the Olympians series by Rick Riordan , The Underland Chronicles by Suzanne Collins , and Diary of a Wimpy Kid by Jeff Kinney . Examples of young adult novels and novel series include the Harry Potter series by J. K. Rowling, The Hunger Games trilogy by Suzanne Collins, the Alex Rider series by Anthony Horowitz and the Mortal Instruments series by Cassandra Clare . Middle grade novels are usually shorter, and are significantly less mature and complex in theme and content than YA. YA novels are for ages 12–18, and tackle more mature and adult themes and content than middle grade novels. The latter usually feature protagonists between
5203-676: The Iliad or the Odyssey , or Stephenie Meyer 's Twilight with Wuthering Heights . When discussing identity, Lycke suggests pairing Hawthorne 's The Scarlet Letter with Sherman Alexie 's The Absolutely True Diary of a Part-Time Indian . The trend to include same-sex relationships and transgender characters in young adult fiction has caused considerable controversy. Conservative activists and religious groups have also criticized young adult fiction for violence, explicit sexual content, obscene language, and suicide. Speculative young adult fiction
5324-668: The Yoruba to 10% for Linha São Pedro, a tiny Brazilian settlement which belongs to the city of Cândido Godói . In Cândido Godói, one in five pregnancies has resulted in twins. The Argentine historian Jorge Camarasa has put forward the theory that experiments of the Nazi doctor Josef Mengele could be responsible for the high ratio of twins in the area. His theory was rejected by Brazilian scientists who had studied twins living in Linha São Pedro; they suggested genetic factors within that community as
5445-462: The blastocysts have fused. Monochorionic twins share the same placenta , and thus have a risk of twin-to-twin transfusion syndrome . Monoamniotic twins are always monozygotic . The survival rate for monoamniotic twins is somewhere between 50% and 60%. Monoamniotic twins, as with diamniotic monochorionic twins, have a risk of twin-to-twin transfusion syndrome . Also, the two umbilical cords have an increased chance of being tangled around
5566-466: The Giver educates him by showing the boy hidden-camera video of Jonas's father doing his job: releasing the smaller of two identical twin newborns through lethal injection before putting it in a trash chute, since identical community members are forbidden. There is no Elsewhere for those not wanted by the Community—those said to have been "released" have been killed. Since he now considers his father
5687-602: The Giver shows Jonas a rainbow. Less pleasantly, he gives Jonas memories of hunger and war, things alien to the boy. Hanging over Jonas's training is the fact that the Giver once before had an apprentice, named Rosemary, but the boy finds his parents and the Giver reluctant to discuss what happened to her. Jonas's father is concerned about an infant at the Nurturing Center who is failing to thrive and has received special permission to bring him home at night. The baby's name will be Gabriel if he grows strong enough to be assigned to
5808-487: The Philosopher's Stone , was published in 1997. Originally marketed in the UK under the broad category of children's literature, the books received attention and praise for their increasingly mature and sophisticated nature, eventually garnering a significant audience of adult readers. This phenomenon led many to see Harry Potter and J.K. Rowling as responsible for a resurgence of young adult literature. It also established
5929-460: The Rings (1954-5) by J. R. R. Tolkien are highly successful fantasy novels, which are read to young children and read by both children and adults They are found in the teen or young adult section of American public and school libraries. However, Lord of the Rings is generally not on the curriculum of high schools. This is because the paperback version can run to almost 1200 pages and the vocabulary
6050-478: The United States, it is required on many core curriculum reading lists in middle school , but it is also frequently challenged . It ranked #11 on the American Library Association list of the most challenged books of the 1990s, ranked #23 in the 2000s, and ranked #61 in the 2010s. The novel is the first in a loose quartet of novels known as The Giver Quartet , with three subsequent books set in
6171-503: The Young Adult Services Division following a reorganization of the American Library Association – had been created. YALSA evaluates and selects materials for young adults, with the most active YASLA committee being the book selection committee. Michael Cart argues that the 1960s was the decade when literature for adolescents "could be said to have come into its own". A significant early example of young adult fiction
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#17328523517676292-599: The ages of 10 and 13, whereas young adult novels usually feature protagonists from 14 to 18. New adult (NA) fiction is a developing genre of fiction with protagonists in the 18–29 age bracket. St. Martin's Press first coined the term in 2009, when they held a special call for "fiction similar to young adult fiction (YA) that can be published and marketed as adult—a sort of an 'older YA' or 'new adult ' ". New adult fiction tends to focus on issues such as leaving home, developing sexuality, and negotiating education and career choices. The genre has gained popularity rapidly over
6413-507: The article. Fraternal twins can be any of the following: Among non-twin births, male singletons are slightly (about five percent) more common than female singletons. The rates for singletons vary slightly by country. For example, the sex ratio of birth in the US is 1.05 males/female, while it is 1.07 males/female in Italy. However, males are also more susceptible than females to die in utero , and since
6534-473: The babies. Because of this, there is an increased chance that the newborns may be miscarried or suffer from cerebral palsy due to lack of oxygen. When the division of the developing zygote into 2 embryos occurs, 99% of the time it is within 8 days of fertilization. Mortality is highest for conjoined twins due to the many complications resulting from shared organs. A 2006 study has found that insulin-like growth factor present in dairy products may increase
6655-407: The basic premise of A Wizard of Earthsea , that of a talented boy going to a wizard's school and making an enemy with whom he has a close connection, is also the premise of Harry Potter . As publishers began to focus on the emerging adolescent market, more booksellers and libraries began creating young adult sections distinct from children's literature and novels written for adults. The 1970s to
6776-776: The beginning of the eighteenth century", according to M. O. Grenby: very few ... enjoyable books for children ... existed. Children read, certainly, but the books that they probably enjoyed reading (or hearing) most, were not designed especially for them. Fables were available, and fairy stories, lengthy chivalric romances , and short, affordable pamphlet tales and ballads called chapbooks , but these were published for children and adults alike. Take Nathaniel Crouch 's Winter-Evenings Entertainments (1687). It contains riddles , pictures, and 'pleasant and delightful relations of many rare and notable accidents and occurrences' which has suggested to some that it should be thought of as an early children's book. However, its title-page insists that it
6897-453: The best-known works of Victorian literature , has had widespread influence on popular culture and literature, especially in the fantasy genre. It is credited as helping end an era of didacticism in children's literature , inaugurating an era in which writing for children aimed to "delight or entertain". The tale has had a lasting popularity with adults as well as with children. A shortened version for young children, The Nursery "Alice"
7018-534: The border of what Jonas believes must be Elsewhere. Using his ability to "see beyond", a gift that he does not quite understand, he finds a sled waiting for him at the top of a snowy hill. He and Gabriel ride the sled down towards a house filled with colored lights and warmth and love and a Christmas tree, and for the first time he hears something he believes must be music. The ending is ambiguous, with Jonas depicted as experiencing symptoms of hypothermia . This leaves his and Gabriel's future unresolved. However, their fate
7139-522: The ceremony's conclusion explains that Jonas has not been given a normal assignment, but instead has been selected as the next Receiver of Memory. The position of Receiver has high status and responsibility, and Jonas quickly finds himself growing distant from his classmates. The rules Jonas receives further separate him, as they allow him no time to play with his friends and require him to keep his training secret. They also allow him to lie and withhold his feelings from his family, things generally not allowed in
7260-450: The chance of dizygotic twinning. Specifically, the study found that vegan mothers (who exclude dairy from their diets) are one-fifth as likely to have twins as vegetarian or omnivore mothers, and concluded that "Genotypes favoring elevated IGF and diets including dairy products, especially in areas where growth hormone is given to cattle, appear to enhance the chances of multiple pregnancies due to ovarian stimulation." From 1980 to 1997,
7381-444: The coming-of-age nature of the texts. This includes narratives about self-identity, life and death, and individuality. Some of the most common YA genres are contemporary fiction, fantasy , science fiction , historical fiction , and romance . Hybrid genres are also common in YA. The social problem novel or problem novel is a sub-genre of literature focusing and commenting on overarching social problems. This type of novel
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#17328523517677502-454: The community from becoming a true Utopia, thus conferring transformational potential on human memory. Hanson interprets the restriction of memory as totalitarian and argues that Lowry demonstrates the emancipatory potential of memory in The Giver . Triplett and Han suggest that Jonas's role as receiver of memory, allowing him a deeper understanding of his societal and cultural context, demonstrates
7623-401: The community thereby returning the memories to them, while the Giver will stay to help them learn to live with their memories before joining his daughter, Rosemary, in death. They plan to fake Jonas's drowning to limit the search for him, but he instead must escape in a rush with Gabriel, upon learning of the child's imminent release. The two are near death from cold and starvation when they reach
7744-406: The deactivation of different X chromosomes in female monozygotic twins, and in some extremely rare cases, due to aneuploidy , twins may express different sexual phenotypes , normally from an XXY Klinefelter syndrome zygote splitting unevenly. Monozygotic twins, although genetically very similar, are not genetically exactly the same. The DNA in white blood cells of 66 pairs of monozygotic twins
7865-413: The death rate in utero is higher for twins, it leads to female twins being more common than male twins. Zygosity is the degree of identity in the genome of twins. Dizygotic ( DZ ) or fraternal twins (also referred to as "non-identical twins", "dissimilar twins", "biovular twins", and, informally in the case of females, "sororal twins") usually occur when two fertilized eggs are implanted in
7986-569: The diary of a young girl, who, to cope with her many problems, experiments with drugs. More recent examples include Speak by Laurie Halse Anderson , Crank by Ellen Hopkins , and The Perks of Being a Wallflower by Stephen Chbosky . The boundary between books for children and adult literature is flexible and loosely defined and in particular "the young have always been efficient [plunderers] of stories from all sources, and have carried off such literary booty as pleased them". This boundary has been policed by adults and has "alternated between
8107-408: The differences detected in this study would have occurred during embryonic cell-division (after the point of fertilization). If they occur early in fetal development, they will be present in a very large proportion of body cells. Another cause of difference between monozygotic twins is epigenetic modification , caused by differing environmental influences throughout their lives. Epigenetics refers to
8228-405: The early stages of embryonic development. A 1981 study of a deceased XXX twin fetus without a heart showed that although its fetal development suggested that it was an identical twin, as it shared a placenta with its healthy twin, tests revealed that it was probably a polar body twin. The authors were unable to predict whether a healthy fetus could result from a polar body twinning. However,
8349-682: The epigenetic difference of three-year-old twins. Twins who had spent their lives apart (such as those adopted by two different sets of parents at birth) had the greatest difference. However, certain characteristics become more alike as twins age, such as IQ and personality. In January 2021, new research from a team of researchers in Iceland was published in the journal Nature Genetics suggesting that identical twins may not be quite as identical as previously thought. The four-year study of monozygotic (identical) twins and their extended families revealed that these twins have genetic differences that begin in
8470-709: The field by attacking established religion, especially Roman Catholicism . Northern Lights , the first volume in the trilogy, won the 1995 Carnegie Medal as the year's outstanding English-language children's book. Pullman has written other YA fiction, including the Sally Lockhart series (1985–94), as well as books for younger children. The category of young adult fiction continues to expand into other media and genres: graphic novels / manga , light novels , fantasy , mystery fiction , romance novels , and even subcategories such as cyberpunk , techno-thrillers , and contemporary Christian fiction . A survey of attendees at
8591-467: The film languished in development hell for another 15 years. Warner Bros. bought the rights in 2007 and the film adaptation was finally given the green light in December 2012. Jeff Bridges plays the title character with Brenton Thwaites in the role of Jonas. Meryl Streep , Katie Holmes , Odeya Rush , Cameron Monaghan , Alexander Skarsgård and Taylor Swift round out the rest of the main cast. It
8712-405: The film. At one point, screenwriter Ed Neumeier was signed to create the screenplay. Later, Neumeier was replaced by Todd Alcott and Walden Media became the central production company. Jeff Bridges has said he had wanted to make the film for nearly 20 years, and originally wanted to direct it with his father Lloyd Bridges in the title role. The elder Bridges' 1998 death cancelled that plan and
8833-509: The genre is targeted at adolescents, a 2012 study found that 55% of young adult literature purchases were made by adults. Author and academic Michael Cart states that the term young adult literature "first found common usage in the late 1960's, in reference to realistic fiction that was set in the real (as opposed to imagined), contemporary world and addressed problems, issues, and life circumstances of interest to young readers aged approximately 12–18". However, "The term 'young adult literature'
8954-484: The genre was christened with a name that has lasted to this day". Initially the YA genre "tended to feature the same" boy and girl love story. But in the 1960s the novels developed to more fully examining the lives of adolescents. Particularly noteworthy was S. E. Hinton 's " The Outsiders ". French historian Philippe Ariès argues, in his 1962 book Centuries of Childhood , that the modern concept of childhood only emerged in recent times. He argues that children were in
9075-471: The genre's recent development, it has difficulty in establishing its value in relation to the classics of literature. Identical twin Twins are two offspring produced by the same pregnancy . Twins can be either monozygotic ('identical'), meaning that they develop from one zygote , which splits and forms two embryos , or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from
9196-475: The globe. In a study on the maternity records of 5750 Hausa women living in the Savannah zone of Nigeria , there were 40 twins and 2 triplets per 1000 births. Twenty-six percent of twins were monozygotic. The incidence of multiple births, which was about five times higher than that observed in any western population, was significantly lower than that of other ethnic groups, who live in the hot and humid climate of
9317-449: The importance of British fantasy writer Alan Garner . According to Pullman Garner "is indisputably the great originator, the most important British writer of fantasy since Tolkien , and in many respects better than Tolkien". Similarly Ursula le Guin in a review praising Garner's novel Red Shift , argues that "Some of the most interesting English novels of recent years have been published as children's books". Although Garner's early work
9438-562: The irony of wanting to censor a novel that warns about societal control of children. Lowry won many awards for her work on The Giver , including the following: A 2004 study found that The Giver was a common read-aloud book for sixth-graders in schools in San Diego County, California . Based on a 2007 online poll, the National Education Association listed it as one of "Teachers' Top 100 Books for Children". In 2012 it
9559-434: The lack of color in his community and argue that his selfhood grows as his memory and perception of color grow. They suggest that Jonas's full perception of color at the end is what allows him to choose to travel elsewhere as an autonomous agent in comparison to others in his community. Elizabeth Bridges reads an implication of gene editing in the development of the homogenous community, based on euphemistic language throughout
9680-542: The last few years, particularly through books by self-published bestselling authors such as Jennifer L. Armentrout , Cora Carmack, Colleen Hoover , Anna Todd , and Jamie McGuire . The genre originally faced criticism, as some viewed it as a marketing scheme, while others claimed the readership was not there to publish the material. In contrast, others claimed the term was necessary; a publicist for HarperCollins described it as "a convenient label because it allows parents and bookstores and interested readers to know what
9801-553: The late 1960s and early 1970s, five other very popular books were published: I Know Why the Caged Bird Sings (1969), an autobiography of the early years of American poet Maya Angelou ; The Friends (1973) by Rosa Guy ; the semi-autobiographical The Bell Jar (US 1963, under a pseudonym; UK 1967) by poet Sylvia Plath ; Bless the Beasts and Children (1970) by Glendon Swarthout ; and Deathwatch (1972) by Robb White , which
9922-536: The level of activity of any particular gene. A gene may become switched on, switched off, or could become partially switched on or off in an individual. This epigenetic modification is triggered by environmental events. Monozygotic twins can have markedly different epigenetic profiles. A study of 80 pairs of monozygotic twins ranging in age from three to 74 showed that the youngest twins have relatively few epigenetic differences. The number of epigenetic differences increases with age. Fifty-year-old twins had over three times
10043-406: The lowest mortality risk at about 9 percent, although that is still significantly higher than that of singletons. Monochorionic twins generally have two amniotic sacs (called Monochorionic–Diamniotic "MoDi"), which occurs in 60–70% of the pregnancies with monozygotic twins, and in 0.3% of all pregnancies. Monochorionic-Diamniotic twins are almost always monozygotic, with a few exceptions where
10164-451: The manuscript more than two years later. A number of novels by Robert Louis Stevenson were first published in serial form, in a weekly children's literary magazine Young Folks , including Treasure Island , Kidnapped , and The Black Arrow . This magazine was for boys and girls of an older age than many of its contemporaries. Mark Twain's Tom Sawyer is described by publisher Simon & Schuster as "The classic tale of
10285-527: The mid-1980s have been described as the golden age of young-adult fiction, when challenging novels began speaking directly to the interests of the identified adolescent market. In the 1980s, young adult literature began pushing the envelope in terms of the subject matter that was considered appropriate for their audience: Books dealing with topics such as rape , suicide , parental death, and murder which had previously been deemed taboo, saw significant critical and commercial success. A flip-side of this trend
10406-463: The novel is conservative rather than transformative due to its religious imagery and undertones, Wend-Walker's post-secular reading suggests that the novel explores the ambiguity between the secular and religious binary which provides it progressive potential by allowing for the transformative potential of the spiritual. Susan G. Lea has emphasized that sameness is crucial to the world of The Giver , and furthermore that their monochromatic vision creates
10527-494: The novel" for young adults. All the same Sarah Trimmer in 1802 recognized young adults as a distinct age group describing "young adulthood" as lasting from ages 14 to 21. In her children's literature periodical, The Guardian of Education , Trimmer introduced the terms "Books for Children" (for those under fourteen) and "Books for Young Persons" (for those between fourteen and twenty-one), establishing terms of reference for young adult literature that still remain in use. "At
10648-458: The novel's setting in part on the closely guarded army bases in which she had grown up, her father having been an army dentist. She has stated, of the characters in The Giver , they have lived in a sterile world for so long that they are in danger of losing the real emotions that make them human. Bradford et al. argue that The Giver represents a community where the lack of cultural memory leads to an inability to avoid societal mistakes, preventing
10769-594: The novel. She suggests that the release of those who do not fit societal conventions represents the ways that eugenics were employed by the society of The Giver . Robert Gadowski suggests that government control of bodies inhibits the society's freedoms. He argues that through bio-technical planning, people's bodies become vehicles of state control rather than the locus of their autonomy. In the United States, The Giver has become frequently assigned as reading in schools, as well as library-sponsored reading clubs and "City Reads" programs. However, reviewers have commented that
10890-525: The number of twin births in the United States rose 52%. This rise can at least partly be attributed to the increasing popularity of fertility drugs and procedures such as IVF, which result in multiple births more frequently than unassisted fertilizations do. It may also be linked to the increase of growth hormones in food. About 1 in 90 human births (1.1%) results from a twin pregnancy. The rate of dizygotic twinning varies greatly among ethnic groups , ranging as high as about 45 per 1000 births (4.5%) for
11011-414: The occurrence of complications "was found to be more likely with increasing twin-to-twin delivery time interval" and suggested that the interval be kept short, though it noted that the study did not examine causes of complications and did not control for factors such as the level of experience of the obstetrician, the wish of the women giving birth, or the "management strategies" of the procedure of delivering
11132-625: The ordinary person in the Community knows nothing of the past. These memories, and being the only Community member allowed access to books about the past, give the Receiver perspective to advise the Council of Elders. The first memory is of sliding down a snow-covered hill on a sled, pleasantness made shocking by the fact that Jonas has never seen a sled, or snow, or a hill—for the memories of even these things have been given up to assure security and conformity (called Sameness). Even color has been surrendered, and
11253-406: The past not considered as greatly different from adults and were not given significantly different treatment. Furthermore, "Teenagers weren't a designated demographic in most respects until around World War II, due in part to advances in psychology and sociological changes, like the abolishment of child labor". With this development came the marketing of "clothes, music, films, radio programs, and ...
11374-473: The pregnancy. The timing of this separation determines the chorionicity (the number of placentae) and amniocity (the number of sacs) of the pregnancy. Dichorionic twins either never divided (i.e.: were dizygotic) or they divided within the first 4 days. Monoamnionic twins divide after the first week. In very rare cases, twins become conjoined twins . Non-conjoined monozygotic twins form up to day 14 of embryonic development, but when twinning occurs after 14 days,
11495-408: The rate of monozygotic twins) to 14 and more per thousand in some African countries. Dizygotic twins are also more common for older mothers, with twinning rates doubling in mothers over the age of 35. With the advent of technologies and techniques to assist women in getting pregnant, the rate of fraternals has increased markedly. Monozygotic ( MZ ) or identical twins occur when a single egg
11616-433: The regimented Community. Once he begins it, Jonas's training makes clear his uniqueness, for the Receiver of Memory is just that—a person who bears the burden of the memories from all of history, and who is the only one allowed access to books beyond schoolbooks and the rulebook issued to every household. The current Receiver, who asks Jonas to call him the Giver, begins the process of transferring those memories to Jonas, for
11737-430: The rigid and the permeable depending on the political and cultural climate". At the lower end of the age spectrum, fiction targeted to readers aged 8–12 is referred to as middle grade fiction . Some novels originally marketed to adults are of interest and value to adolescents, and vice versa, as in the case of books such as the Harry Potter series of novels. Some examples of middle grade novels and novel series include
11858-444: The same age. However, dizygotic twins may also look very different from each other (for example, be of opposite sexes). Studies show that there is a genetic proclivity for dizygotic twinning. However, it is only the mother who has any effect on the chances of having such twins; there is no known mechanism for a father to cause the release of more than one ovum . Dizygotic twinning ranges from six per thousand births in Japan (similar to
11979-406: The same universe: Gathering Blue (2000), Messenger (2004), and Son (2012). In 2014, a film adaptation was released, starring Jeff Bridges , Meryl Streep , and Brenton Thwaites and directed by Philip Noyce . Jonas, a 12-year-old boy, lives in a Community isolated from all except a few similar towns, where everyone has an assigned role. With the annual Ceremony of Twelve upcoming, he
12100-424: The society has a true sense of equality and lacks any color, climate, or terrain. The protagonist of the story, a 12-year-old boy named Jonas, is selected to inherit the position of Receiver of Memory, the person who stores all the memories of the time before Sameness. Jonas struggles with concepts of the new emotions and things introduced to him, and whether they are inherently good, evil, or in between, and whether it
12221-455: The southern part of the country. The incidence of multiple births was related to maternal age but did not bear any association to the climate or prevalence of malaria . Twins are more common in people of African descent. The predisposing factors of monozygotic twinning are unknown. Dizygotic twin pregnancies are slightly more likely when the following factors are present in the woman: Women undergoing certain fertility treatments may have
12342-414: The splitting of a zygote or embryo is unknown. IVF techniques are more likely to create dizygotic twins. For IVF deliveries, there are nearly 21 pairs of twins for every 1,000. Monozygotic twins are genetically nearly identical and they are the same chromosomal sex unless there has been a mutation during development. The children of monozygotic twins test genetically as half-siblings (or full siblings, if
12463-504: The story lacks originality and is not likely to stand up to the sort of probing literary criticism used in "serious" circles. Others argue that the book's appeal to a young-adult audience is critical for building a developing reader's appetite for reading. Karen Ray, writing in The New York Times , detects "occasional logical lapses", but adds that the book "is sure to keep older children reading". Young adult fiction author Debra Doyle
12584-701: The text for the audiobook edition. The Lyric Opera of Kansas City and the Minnesota Opera co-commissioned and premiered an opera by Susan Kander based on the novel. It was presented in Kansas City in January and Minneapolis on April 27–29, 2012, and was webcast on May 18, 2012. In 2017, a stage musical adaptation was in the development stages, with a book by Martin Zimmerman and music and lyrics by Jonah Platt and Andrew Resnick. HMH Books for Young Readers published
12705-539: The thirteenth, Starship Troopers , was instead published by Putnam . The intended market was teenaged boys. A fourteenth novel, Podkayne of Mars (1963), featured a teenaged girl as the protagonist. In the 1950s, The Catcher in the Rye (1951) attracted the attention of the adolescent readers although it was written for adults. The themes of adolescent angst and alienation in the novel have become synonymous with young adult literature. The Hobbit (1937) and Lord of
12826-436: The twins will likely be conjoined. Furthermore, there can be various degrees of shared environment of twins in the womb, potentially leading to pregnancy complications . It is a common misconception that two placentas automatically implies dizygotic twins, but if monozygotic twins separate early enough, the arrangement of sacs and placentas in utero is in fact indistinguishable from that of dizygotic twins. DiDi twins have
12947-466: The uterus wall at the same time. When two eggs are independently fertilized by two different sperm cells , fraternal twins result. The two eggs, or ova , form two zygotes , hence the terms dizygotic and biovular . Fraternal twins are, essentially, two ordinary siblings who happen to develop in the womb together and who are born at the same time, since they arise from two separate eggs fertilized by two separate sperm , just like ordinary siblings. This
13068-666: The validity of suspicious methods of reading that attempt to obtain deeper rather than surface meanings. Bradford et al. suggest The Giver ' s depiction of Christmas at the novel's end implies that an ideal community is in part represented by a family Christmas, therefore situating the novel as conservative. Graeme Wend-Walker, an academic, analyzed the then-trilogy in 2013 through a post-secular lens and suggested that removing religion entirely from human society and lives could diminish humanity's capacity for accepting differences rather than providing for human liberation as some may assume. Countering Bradford's claim, which would suggest that
13189-447: The world and its environment." Like Lowry's other books, The Giver shows changes in the characters' lives, reflecting this fascination in the multifaceted dimensions of growing up. The Giver was initially inspired by Lowry's interaction with her father, who, in his senility, kept forgetting about the long-ago death of her sister; she imagined "a novel in which people are deprived of the memories of suffering, grief, and pain." She based
13310-519: The world around them. In the mid-2010s, more attention was drawn to diversity from various quarters. In the several years following, diversity numbers seem to have increased: One survey showed that in 2017, a quarter of children's books were about minority protagonists, almost a 10% increase from 2016. Jack Zipes , a professor of German and literature, has criticized the standardized nature of young adult fiction in Western society. He writes that to become
13431-738: The world, at 45–50 twin sets (90–100 twins) per 1,000 live births, possibly because of high consumption of a specific type of yam containing a natural phytoestrogen which may stimulate the ovarys to release an egg from each side. In Central Africa , there are 18–30 twin sets (or 36–60 twins) per 1,000 live births. In South America , South Asia , and Southeast Asia , the lowest rates are found; only 6 to 9 twin sets per 1,000 live births. North America and Europe have intermediate rates of 9 to 16 twin sets per 1,000 live births. Multiple pregnancies are much less likely to carry to full term than single births, with twin pregnancies lasting on average 37 weeks, three weeks less than full term. Women who have
13552-417: Was S. E. Hinton's The Outsiders (1967). The novel features a truer, darker side of adolescent life that was not often represented in works of fiction of the time. Written during high school and written when Hinton was only 16, The Outsiders also lacked the nostalgic tone common in books about adolescents written by adults. The Outsiders remains one of the best-selling young adult novels of all time. In
13673-402: Was a strong revived interest in the romance novel, including young adult romance . With an increase in number of adolescents, the genre "matured, blossomed, and came into its own, with the better written, more serious, and more varied young adult books (than those) published during the last two decades". The first novel in J.K. Rowling 's seven-book Harry Potter series, Harry Potter and
13794-420: Was analyzed for 506,786 single-nucleotide polymorphisms known to occur in human populations. Polymorphisms appeared in 2 of the 33 million comparisons, leading the researchers to extrapolate that the blood cells of monozygotic twins may have on the order of one DNA-sequence difference for every 12 million nucleotides, which would imply hundreds of differences across the entire genome. The mutations producing
13915-490: Was awarded 1973 Edgar Award for Best Juvenile Mystery by the Mystery Writers of America . The works of Angelou and Plath were published as adult works but The Bell Jar deals with a nineteen year old's "teenage angst," and Angelou's autobiography is one of the ten books most frequently banned from high school and junior high school libraries and classrooms. Authors Philip Pullman and Neil Gaiman have both argued for
14036-503: Was more critical, stating that "Personal taste aside, The Giver fails the [science fiction] Plausibility Test," and that "Things are the way they are [in the novel] because The Author is Making A Point; things work out the way they do because The Author's Point Requires It." Children's author Natalie Babbitt , writing in The Washington Post called the novel "a warning in narrative form," saying: "The story has been told before in
14157-481: Was one of the first young adult authors to write novels focused on such controversial topics as masturbation , menstruation , teen sex , birth control , and death . Ursula le Guin 's A Wizard of Earthsea , published in 1968, had a significant influence on YA fantasy fiction. It won or contributed to several notable awards for le Guin, including the Boston Globe–Horn Book Award in 1969, and
14278-687: Was one of the last winners of the Lewis Carroll Shelf Award . With regard to the Earthsea series Barbara Bucknal stated that "Le Guin was not writing for young children when she wrote these fantasies, nor yet for adults. She was writing for 'older kids'. But in fact she can be read, like Tolkien, by ten-year-olds and by adults. Margaret Atwood said that ... A Wizard of Earthsea ... since it dealt with themes such as "life and mortality and who are we as human beings", it could be read and enjoyed by anybody older than twelve. Reviewers have commented that
14399-448: Was published in 1890. It was inspired when, on 4 July 1862, Lewis Carroll and Reverend Robinson Duckworth rowed in a boat with the three young daughters of scholar Henry Liddell : Lorina (aged 13); Alice (aged 10); and Edith Mary (aged 8). During the trip Carroll told the girls a story that he described in his diary as "Alice's Adventures Under Ground" and which his journal says he "undertook to write out for Alice". She finally got
14520-512: Was ranked number four among all-time children's novels in a survey published by School Library Journal . Oregon Children's Theatre ( Portland , Oregon) premiered a stage adaptation of The Giver by Eric Coble in March 2006. Subsequent productions of Coble's one-hour script have been presented in several American theatres. Another stage adaptation, written by Diana Basmajian, was produced by Prime Stage Theatre in 2006. Actor Ron Rifkin reads
14641-479: Was released in North America on August 15, 2014. Young adult fiction The earliest known use of term young adult occurred in 1942. The designation of young adult literature was originally developed by librarians to help teenagers make the transition between children's literature and adult literature, following the recognition, around World War II , of teenagers as a distinct group of young people. While
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