Magnesium Facts (Mg or Atomic Number 12)

Magnesium Facts (Mg or Atomic Number 12) Magnesium is an element that is essential for human nutrition. This alkaline earth metal has atomic number 12 and element symbol Mg. The pure element is a silver-colored metal, but it tarnishes in air to give it a dull appearance. Crystals of pure magnesium metal. Lester V. Bergman / Getty Images Magnesium  Basic Facts Atomic Number: 12 Symbol: Mg Atomic Weight: 24.305 Discovery: Recognized as an element by Black 1775; Isolated by Sir Humphrey Davy 1808 (England). Magnesium first came into use as magnesium sulfate or Epsom salt. The story goes that in 1618 a farmer in Epsom, England could not get his cattle to drink from a well with bitter-tasting water, yet the water seemed to heal skin conditions. The substance in the water (magnesium sulfate) came to be known as Epsom salts. Electron Configuration: [Ne] 3s2 Word Origin: Magnesia, a district in Thessaly, Greece (Davy initially suggested the name magnium.) Properties: Magnesium has a melting point of 648.8 °C, boiling point of 1090 °C, specific gravity of 1.738 (20 °C), and valence of 2. Magnesium metal is light (one-third lighter than aluminum), silvery-white, and relatively tough. The metal tarnishes slightly in air. Finely divided magnesium ignites upon heating in air, burning with a bright white flame. Uses: Magnesium is used in pyrotechnic and incendiary devices. It is alloyed with other metals to make them lighter and more easily welded, with applications in the aerospace industry. Magnesium is added to many propellents. It is used as a reducing agent in the preparation of uranium and other metals that are purified from their salts. Magnesite is used in refactories. Magnesium hydroxide (milk of magnesia), sulfate (Epsom salts), chloride, and citrate are used in medicine. Organic magnesium compounds have many uses. Magnesium is essential for plant and animal nutrition. Chlorophyll is a magnesium-centered porphyrin. Biological Role: All known living cells require magnesium for nucleic acid chemistry. In humans, over 300 enzymes use magnesium as a catalyst. Foods rich in magnesium include nuts, cereals, cocoa beans, green leafy vegetables, and some spices. The average adult human body contains 22 to 26 grams of magnesium, mostly in the skeleton and skeletal muscles. Magnesium deficiency (hypomagnesemia) is common and occurs in 2.5 to 15% of the population. Causes include low calcium consumption, antacid therapy, and loss from the kidneys or gastrointestinal tract. Chronic magnesium deficiency is associated with hypertension, type 2 diabetes, and metabolic syndrom. Sources: Magnesium is the 8th most abundant element in the earths crust. While it is not found free it nature, it is available in minerals including magnesite and dolomite. The metal may be obtained by electrolysis of fused magnesium chloride derived from brines and seawater. Atomic Weight: 24.305 Element Classification: Alkaline Earth Metal Isotopes: Magnesium has 21 known isotopes ranging from Mg-20 to Mg-40. Magnesium has 3 stable isotopes: Mg-24, Mg-25 and Mg-26. Magnesium Physical Data Density (g/cc): 1.738 Appearance: lightweight, malleable, silvery-white metal Atomic Radius (pm): 160 Atomic Volume (cc/mol): 14.0 Covalent Radius (pm): 136 Ionic Radius: 66 (2e) Specific Heat (20 °C J/g mol): 1.025 Fusion Heat (kJ/mol): 9.20 Evaporation Heat (kJ/mol): 131.8 Debye Temperature (K): 318.00 Pauling Negativity Number: 1.31 First Ionizing Energy (kJ/mol): 737.3 Oxidation States: 2 Lattice Structure: Hexagonal Lattice Constant (Ã…): 3.210 Lattice C/A Ratio: 1.624 CAS Registry Number: 7439-95-4 Magnesium Trivia: Magnesium was originally named magnium by Humphrey Davy after isolating the element from magnesia, known now as magnesium oxide.The 1915 Nobel Prize in Chemistry was awarded to Richard Willsttter for his work with the chlorophyll and identifying magnesium was the central atom in its structure.Epsom salt is a magnesium compound, magnesium sulfate (MgSO4).Magnesium is the 10th most abundant element in the human body.Magnesium will burn in pure nitrogen gas and pure carbon dioxide gas.Magnesium is the fifth most common element found in seawater. Sources Emsley, John (2011).  Natures building blocks: An A-Z Guide to the Elements. Oxford University Press. ISBN 978-0-19-960563-7.Greenwood, Norman N.; Earnshaw, Alan (1997).  Chemistry of the Elements  (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.Hammond, C. R. (2004). The Elements, in  Handbook of Chemistry and Physics  (81st ed.). CRC press. ISBN 978-0-8493-0485-9.Rumble, John R., ed. (2018). CRC Handbook of Chemistry and Physics (99th ed.). Boca Raton, FL: CRC Press. ISBN 978-1-1385-6163-2.Weast, Robert (1984).  CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. ISBN 0-8493-0464-4. Return to the Periodic Table

Self Efficacy Research Paper Example | Topics and Well Written Essays - 1250 words

Self Efficacy - Research Paper Example Before I was incarcerated, I had just finished college and I felt I had my whole life ahead of me, I was supremely confident and proud of my considerable academic achievements. I considered myself an objective person and was always focused on bettering my skills abilities as well as social life, despite the fact that I had several offers from leading companies, I was in view of setting out on my own with my friends to start a company. While I was aware of the fact that being employed was a safer bet, I was determined to start life on my own terms, the challenges of being entrepreneurs seemed like something I could handle and overcome. When faced with challenges, people with law self-efficacy often back down and give up (Bandura, 1993) I was the exact opposite, challenges spurred me into more action and strengthened my resolve. As I said, the world was at my feet, I was determined I would make my first million before my college mates who had gone onto formal employment had paid off th eir collage loans. My two partners shared my optimism, but they often thought me too ambitious, however, within the within two years, they came to appreciate my confidence and I rubbed of them. We designed, created, and sold software and thanks intellectual effort, combined talent as well as several calculated risks, we were had several solid contracts and money was coming in regularly if not comfortably. In a way I believe my high sense of self-worth; propelled by my success slowly turning into arrogance and a feeling of invincibility, what more, I could not bear to loose and would often bend and even break the law. In my quest to land us a contract, I had found out that the main competitor was an old rival from college, working for a competing firm, and decided that I would get it by all means. I started by befriending one of the managers in the firm where we had applied for the contract. I even subtly suggested in one of our private meetings that if my firm got the contract, I wo uld make it worth his while; this was the mistake that brought down my career. Initially he was reluctant and even appeared offended, I thought I might have gone too far but when he agreed to a second meeting, I threw caution to the wind, in my mind, my charm and convincing attitude had won him over. The truth is he had reported my conduct and had received instructions to lead me on, but I was too blind to see this, he talked about how he was having money problems and mentioned he was in the committee dealing with our contract. I took the bait and mentioned a figure, and he agreed, three days later as I handed him the money in a brown envelop in the same restaurant we met on the first day, and I was arrested. Admittedly this was not the first time I had done such a thing, but what I did not know is that the authorities had been investigating me and when the manager reported me, they came in for the kill. Efficacy works both ways; one is not only confident on their abilities and capa city for success indeed while research has often pointed to self-efficacy being related to convectional purists and positive development even criminal traits benefit from the same. I pleaded guilty, and cut a deal with the prosecution to, so my partners would not be involved since they were very ignorant of my activities, my efficacy was still intact, as I blamed no one but myself. However, in prison I had time to think and reflect on my actions and motivation, I realized my arrogance and ambition had been

Reviving Ophelia Essay Example | Topics and Well Written Essays - 750 words

Reviving Ophelia - Essay Example For example, she sees contemporary society as a ‘girl-poisoning’ one, which essentially forces young girls to turn into â€Å"female impersonators who fit their whole selves into small, crowded spaces". Instead of letting the girl find her true calling through a process of exploration and experiment, the strictures of American society narrows down the scope of their individual expression. The author cites numerous anecdotal examples in the book, by way of which she throws light on key psychological insights on female adolescence. Reviving Ophelia does not stop with illustrations of the state of young women in the United States. The book goes further and suggests methods and principles through which adolescents could retrieve lost ground. The authenticity for Pipher’s analysis comes from the fact that she is an experienced psycho-therapist, who specializes in teenage issues and problems. Toward the end of the book, Pipher provides a list of remedial measures that are based on insights she gained during her professional practice. The book is centered on this crucial question: â€Å"Why are American adolescent girls falling prey to depression, eating disorders, and suicide attempts at an alarming rate?†. The answer for this serious question lies in the fact that we live in a society which places emphasis on superficial aspects of an individual such as their looks, sex appeal, etc. Such expectations are not only shallow but are also psychologically deficient, in that, there are many more facets to a teenage girl than external appearance. The author asserts that as long as this dismal state of culture persists, girls in our country will find it hard to find their true selves. According to Pipher, parents have a key role to play in the revival process. Through a process of educating themselves on concepts of psychology, parents can liberate their

Local Government between Indonesia and Brunei Darussalam

Local Government between Indonesia and Brunei Darussalam Comparison of Local Government between Indonesia and Brunei Darussalam Rifka Aulya a. Indonesia State:Indonesia Currency: Rupiah (IDR) Capital: DKI Jakarta State Structure: Unitary Form of Government:Constitutional Republic (Presidential) Local Government: There is Local Government in Indonesia Indonesia is the one of the country in south-east Asia. To manage the resources on whole area in this state, it is possible if all of the management is undertake by central government. So, Indonesia has implementation of local government to manage each area according to the law No. 32/2004 on Local Government. To manage their resources within own area, Indonesia divide into 35 province that lead by Governor who chosen through an election every 5 years. The province is divided into districts and municipalities, which each province, counties, and the city has a local government, which is regulated by legislation. And, each sub-district (kecamatan) consists of some villages that can define as the lowest level on Local Government in Indonesia. The scheme about Local Government in Indonesia is on picture bellow. Local Government in Indonesia Local government in Indonesia defines into 3 terms. They are local government as Implementation of local autonomy, government as an organ, and localities. The implementation of local autonomy is the role of government as a function. There are two functions there, once is the authority as policy-makers and to implement that policy, the other is as function/ responsibility/ affairs. There are many functions that can take by local government such as providing an education, health service, and many more. But, there’s a function that can’t handle by local government, just taken by central government that we call absolute affairs including defense, religion, security, monetary and fiscal, juristic, and foreign-relation. Government as an organ is the person or actors who implementing local government. The person is like the head of province (Governor), council (Bupati), Regents, etc. And localities is about the communities who live in local area. The definition of localities Local government in Indonesia also divided into 4 categories that have a specific authority, they are deconcentration, decentralization, delegation, and devolution. Deconcentration also called administrative decentralization, it’s only in administrative. Decentralization is transferring authority of responsibility from central to lower government include managing the administrative, politics, economic, fiscal, etc. Devolution is decentralization in political only (political decentralization), it’s mean that local government can make or unmake the policies to make politic stability in their localities. And delegation also called administrative decentralization. b. Brunei Darussalam State: Brunei Darussalam Capital: Bandar Seri Begawan Currency: Brunei Dollar (BND) State Structure: Unitary Forms of Government: Constitutional Sultanate Local Government: There’s no Local Government Local Government in Brunei Darussalam Brunei Darussalam is the one of ten countries in south-east Asia in which capital of the country is Bandar Sri Begawan. Brunei Darussalam has 422.700 populations and the wide area is 5.765 sq km. Forms of government is constitutional monarchy with the head of the country is majesty Sultan Haji Hassanal Bolkiah Mu’izzadin Waddaulah, Sultan and Yang dipertuan of Negara Brunei Darussalam. The Sultan is appointed by Council of succession. Sultan has absolute and full of authority in any state policy to govern the country, including the status of impunity for he and his family empire. People are not given the slightest power. All rules are made by the Sultan without regard to the desires or aspirations of the people. To manage their state, Sultan is assisted and advised by six councils, namely: the Council of Ministers, the Legislative Council, the Religious Council, the Privy Council, the Adat Istiadat Council, and the Council of Succession. People have handed their rights over the Sultan to rule unanimously. Sultan should be responsible not only to society but also to Allah SWT to bring the communities to achieve the welfare and prosperity. Thus came the proverb in indigenous perspective that says Raja tidak zalim, rakyat pantang menderhaka kepada raja† and †Raja wajib adil, rakyat wajib taat†. Sultans role is enshrined in the national philosophy of Melayu Islam Beraja (MIB). There are six roles of the Sultan in the context of MIB: 1) The Sultan as an umbrella of Allah on the earth, 2) Sultan as the supreme leader of the Islamic religion, 3) Sultan as head of state, 4) Sultan is the head of government, 5) Sultan as supreme leader vogue, and 6) Sultan as supreme commander of the armed forces In the Beraja system there are 3 elements, namely: the king (Sultan), the government and the people. Sultan will be respected and loved by the societies, if government can perform its function well in providing services to the public. By itself the people then will show his loyalty to the Sultan. The government should be able to run the administration well in order to run successful development. In Brunei Darussalam, it’s only divides into 4 districts, they are Belait, Brunei and Muara, Temburong, and Tutong. The council of minister is appointed by their residents. So, there’s no election in Brunei Darussalam. There’s no local government in Brunei Darussalam, although the local administration takes place through the four districts. At the local level, people are represented by their respective penghulus, ketua kampungs as head of the village, and heads of longhouse. The Local Government differentiation between Indonesia and Brunei Darussalam DIFFERENTIATION INDONESIA BRUNEI DARUSSALAM Local Government There’s Local Government There’s no Local Government form of Local Government Decentralization Deconcentration Delegation Devaluation Centralization Election There’s an election every 5 years to determine/ choose the head of localities There’s no election, because the head of district was chosen by own residents (their own communities) in their respective areas. Responsibility Local government have responsibility to Central Government have responsibility for their respective communities’s welfare. The Similarities between Local Government in Indonesia and  Brunei Darussalam Similarity Indonesia and Brunei Darussalam Head of districts Both of the countries have head of districts area to lead the own area, although with different name. In Indonesia, the district of Province, lead by Governor, municipal by Council (Bupati), regents by â€Å"camat†. In Brunei, the districts lead by penghulus and ketua kampungs. Daftar Pustaka Dodo, 2009. Kesultanan Brunei Darussalam. Access Date on April 7th 2014 through http://nationalgeographic.co.id/forum/topic-96.html Permana, Renaldy. 2009. Konstitusi Brunei Darussalam. Date access on April 7th 2014, trough http://renaldypermana.blogspot.com/ 009/11/konstitusi-brunei-darussalam.html

Catherine Triangle Essay

Overlooking the docks area of Brooklyn is the massive Brooklyn Bridge, which spans New York’s East River and which joins the boroughs of Brooklyn and Manhattan. In the title, Miller suggests he is giving the audience a view of the community which lies below the bridge. The title also suggests that the audience is given a panoramic view of the scene, much as a captain of a ship has an all-round view from the vessel’s bridge. The action of the play takes place largely in an apartment in a tenement block in the Red Hook area of Brooklyn. In the play, Alfieri, the lawyer, describes the area as: â€Å"the slum that faces the bay on the seaward side of Brooklyn Bridge† and as â€Å"the gullet of New York swallowing the tonnage of the world. † It was a socially deprived area, where succeeding generations of immigrants from Europe, both legal and illegal, found a home and work. There was a long-established Italian community in the area. The Culture and Society of Red Hook. Given the rather traditional values of Italian-American society in the middle of the twentieth century and the fact that most of the men earned their living from hard physical labour in the dockyards and elsewhere, it is not surprising that Red Hook was quite a raw, masculine and even macho society. Manhood, which involved strength and aggression (and proving it) was very important. Women were expected to conform to an image of purity and domestic virtue and, as Beatrice does, gain most of their satisfaction from cooking and maintaining the household. The men expected to be respected and obeyed as of right and the women had to submit to them in decision- making. The influence of the Roman Catholic Church was strong and most people had traditional moral views. The family and the extended family were of major importance as was the community. Many of the families were recent immigrants from Southern Italy, the original home of the Mafia, and family and blood ties were often demonstrated through the practice of vendetta, that is the obligation on the rest of the family to take revenge on anyone who insulted or harmed any of its members. It was, therefore, a culture in which a man’s reputation (for strength and honesty, for example) was crucial to him and where any affront to a person’s honour had to be avenged. This may help you to understand the pressure that Eddie and Marco are under at the end of the play. The Legal Background. In the first 20 years of the Twentieth Century, over three million Italians emigrated to the U. S. A. to escape from the poverty of their homeland and in the hope of a better life in America. These were legal immigrants to America, but the local population grew increasingly hostile to the Italian community. In the early 1920s the American government passed laws to restrict immigration and afterwards only four thousand Italians were allowed to enter the U. S. A.  legally each year. Far more than this number were desperate to escape the poverty of their own country. Two such were the ‘submarines’, Marco and Rodolpho, cousins of Beatrice, who enter America illegally on the evening the play opens. One of the few ways an illegal immigrant could gain the right to remain in America legitimately was to marry an American citizen. This sometimes meant that illegal immigrants married not for love, but simply to remain in the country. We can perhaps better understand Eddie’s fears about Rodolpho when we know this 7. The Carbone Family’s Background. A playwright, unlike a novelist, cannot describe characters and situations to an audience. Details about characters and their relationships have to be revealed gradually and subtly. What, then, do we know about the Carbone family and the relationships within it? The Carbones live in an apartment in a tenement building, at 441 Saxon Street, Brooklyn, which Miller describes as a ‘worker’s flat, clean, sparse, homely. ‘ Eddie, aged 40, is a large, strong man who enjoys male pursuits and going bowling with his friends. He is a longshoreman (i. e. he works in the docks). Beatrice is a traditional 1950s housewife. She keeps the flat looking immaculate, cooks and, at least in the early part of the play, dutifully defers to Eddie in everything. She stands up to Eddie much more as the action unfolds, and objects to his overprotective attitude to Catherine. Catherine, Beatrice’s attractive 17-year-old niece, had been adopted by Eddie and Beatrice when her parents died. Catherine is very fond of Eddie but there is growing tension between them because of Catherine’s wish to start work and Eddie’s desire to protect her from, as he sees them, the dangers of the adult world. The Eddie – Beatrice – Catherine Triangle. The relationship between these three is the fOcus of Act I. Eddie and Beatrice have obviously had a warm, loving relationship but there are currently stresses. In Catherine’s opinion, and in Eddie’s too, Beatrice nags her husband. Catherine tells Rodolpho: â€Å"If I was a wife, I would make a man happy instead of going on at him all the time† (Implying that Beatrice does ‘go on’ at Eddie. ) Eddie certainly agrees with Catherine’s view. He tells Beatrice: â€Å"You didn’t used to jump on me all the time about everything. The last year or two I come in the house I don’t know what’s gonna hit me. It’s a shooting gallery in here and I’m the pigeon. † Part of the tension is caused by Eddie’s belief that he should be the master in the house and Beatrice’s increasing wish to express her own view. This leads Eddie to say, â€Å"I don’t like the way you talk to me, Beatrice†, whenever Beatrice disagrees with him. The Catherine – Rodolpho – Eddie Triangle. When Eddie first hears that Beatrice’s cousins have arrived he says it would be an ‘honour’ to help them, despite the obvious risks involved. He knows how important it is to give the men a chance to work to send money back to Italy. There is no doubt that Eddie understands the poverty they are escaping as his own father had come to the U. S. A. from Italy. Eddie’s willingness to offer hospitality shows that he is a good man, aware of his responsibilities to others in the Italian-American community. This makes his later actions an even greater shock. Eddie is immediately impressed by the quiet dignity and maturity of Marco, but he is equally quickly irritated by Rodolpho. This is partly because of Rodolpho’s personality, for he is an extrovert, quite loud, showy, lively and fun- loving, but also because of his appearance. Eddie’s stereotyping of Rodolpho because of his blond hair and his voice shows prejudice, which reflects not just Eddie’s attitudes but those of his time and culture. . The Catherine – Rodolpho – Eddie Triangle Things which irritate Eddie These are the things about Rodolpho which irritate Eddie: His appearance; especially his blond ‘wacky’ hair. Eddie says of Rodolpho: â€Å"he’s like a chorus girl or sump’n†. His abilities and talents, e. g. dressmaking and cooking, which Eddie thinks are things only a woman should do. This leads him to doubt whether Rodolpho is a ‘real’ man. His fondness for singing out loud in his high tenor voice, even on the ships. Eddie is embarrassed that other men laugh at Rodolpho for this. He is particularly angry when Rodolpho sings ‘Paper Doll’ because he thinks the words may be related to Catherine and he becomes aware of the growing romance between her and Rodolpho. The stage directions state that Eddie is ‘puffed with trouble’ when he notices the growing affection between Catherine and Rodolpho. These are the things that annoy Eddie at first, but annoyance becomes hate when he realises that Rodolpho is a rival for Catherine. In Act II, Eddie is furious with Catherine and Rodolpho for going to the cinema and staying out late. Eddie believes that Rodolpho is deliberately dating Catherine in the hope of marrying her and being able to stay in America. It is difficult to decide whether this is a genuine concern or whether Eddie is using it as an excuse to cover his real feeling which is sexual jealousy. What do you think? It is unlikely that a man like Eddie would consider Rodolpho as a suitable partner for Catherine, even if there was no sexual jealousy involved. . The Catherine – Rodolpho – Eddie Triangle Eddie’s motives Whatever his motives, be they genuine concern to protect his niece or sexual jealousy, Eddie tries his hardest to turn Catherine against Rodolpho and split them up. He tries to humiliate Rodolpho in front of Catherine in the following ways: He cleverly introduces the subject of boxing (a suitably masculine activity for Eddie) and, while pretending to teach Rodolpho how to box, hits him in the mouth. For Eddie, this demonstrates to Catherine what a weak man Rodolpho is and what a strong one he (Eddie) is. It also shows that Eddie thinks women are more attracted to strong, aggressive males.

Software Architecture Code for Wrapper Class

Wrapper to connect two applications with different architectures Public con As ADODB. Connection Public rs As ADODB. Recordset Dim str As String Private Sub Command1_Click() Command1. Enabled = False Command2. Enabled = False Command3. Enabled = False Command4. Enabled = True Set con = New ADODB. Connection Set rs = New ADODB. Recordset con. Open â€Å"Provider=SQLOLEDB. 1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=AIR† str = â€Å"insert into Staff values(† & Text1. Text & â€Å",'† & Text2.Text & â€Å"‘, † & Text3. Text & â€Å",† & Text4. Text & â€Å",'† & Text5. Text & â€Å"‘)† On Error GoTo Delete_Error con. Execute (str) MsgBox † Record added Successfully† Text1. Text = â€Å"† Text2. Text = â€Å"† Text3. Text = â€Å"† Text4. Text = â€Å"† Text5. Text = â€Å"† Text1. SetFocus Exit Sub Delete_Error: MsgBox â€Å"This record cannot be Added . Error code = † _ & Err. Number & vbCrLf & Err. Description, _ vbCritical, â€Å"Cannot Update Database† End Sub Private Sub Command2_Click() Command1. Enabled = False Command4. Enabled = False Command6.Enabled = False If (Adodc1. Recordset. BOF) Then Adodc1. Recordset. MoveLast Else Adodc1. Recordset. MovePrevious End If End Sub Private Sub Command3_Click() Command1. Enabled = False Command4. Enabled = False Command6. Enabled = False If (Adodc1. Recordset. EOF) Then Adodc1. Recordset. MoveFirst Else Adodc1. Recordset. MoveNext End If End Sub Private Sub Command4_Click() Command4. Enabled = False Command1. Enabled = True Command2. Enabled = False Command3. Enabled = False Command7. Enabled = False Text1. Text = â€Å"†Text2. Text = â€Å"† Text3. Text = â€Å"† Text4. Text = â€Å"† Text5. Text = â€Å"† Text1. SetFocus End Sub Private Sub Command5_Click() Unload Me Form2. Show End Sub Private Sub Command6_Click() Text1. Text =  "† Text2. Text = â€Å"† Text3. Text = â€Å"† Text4. Text = â€Å"† Text5. Text = â€Å"† Text1. SetFocus End Sub SQL COMMANDS: create database AIR create table Staff(Staff_id int PRIMARY KEY NOT NULL,Staff_name varchar(20), Staff_age int, Salary int, Staff_address varchar(30)) ::Database AIR created successfully ::Table Staff creates successfully

Ghettos Death Sentences, The Uprisings Of The 1960s

Ghettos: Death Sentences The uprisings of the 1960s were not the culmination of violence in the ghettos. The decades following the 1960s saw the shift of violence in ghettos from protest violence to simply violence. In â€Å"Urban Violence and Street Gangs, gangs are defined as â€Å"groups of [primarily] male adolescents and youths who have grown up together as children, usually in cohorts in a low-income neighborhood or city† (Vigil 226). In the movie, Doughboy and his friends are not shown as a subset of a widespread gang (although it can be inferred from their blue attire that they belong to the infamous Los Angeles Crips). Yet, they grow up together on the streets, find solace in one another’s company, and become involved in violent behavior during their adolescent years; therefore, they can be defined as a gang. Several factors play a role in the violent atmosphere which dominates ghettos and gangs: a locura mentality, ecological factors, socioeconomic factors, a nd a lack of social control--particularly family stress (Vigil 231). 1) Locura Locura is defined as a â€Å"spectrum of behavior reflected in a type of quasi-controlled insanity† and it has become a â€Å"psychological mindset† and a â€Å"requisite for street survival and a behavioral standard for identification and emulation†. Locura is a key quality gangs look for in their members because it â€Å"helps assuage fear and the anxiety associated with the fight-flight (and even the middle ground of fright) dilemma that street realities