Organizational Behavior Factors Affecting the Criminal Justice Essay

Organizational Behavior Factors Affecting the Criminal Justice - Essay Example When the upper management makes good decisions they ensure that the community has an effective justice system and also the lower managements are able to imitate their business behaviors, but a corrupt upper management system will negatively affect the lower management and the community. Culture may also be one of the biggest factors that affect the criminal justice system in the police department whereby diversity in the department reveals that there is less likelihood of disagreements between both the officers and the suspect or victims when there is a language barrier. Diversity in the police department has an advantage since individuals who may be witnesses or victims may feel more obliged to give information to the police officer. Law goes hand in hand with the criminal justice work place since the officers are expected to uphold the law at all times. However, there are officers who think that since they are the law enforcers they are above the law which is an issue, but in accor dance to the law when the officer commits an offence he or she should be treated in the same way as an individual who broke the law and was not an enforcement agent of the law. Stakeholders play an important role too as they determine how the internal and external relations of the system function. The influence of this factor in the criminal justice workplace mainly leadership creates a working pattern which ensures the accomplishment of the departments goals and objectives. There are three influential stakeholders’ namely political bodies, community groups and employees who affect the criminal justice system in the work place. Political bodies, who are external stakeholders, have more of a negative influence on the police department since they use it mostly to practice illegal acts unlike community groups, which may work with the police department to fight crime though community policing. They help combat crime by giving police lads to offenders, and this increases the effic iency of the criminal justice system in combating crime. Employees who may be officers are very influential stakeholders in the criminal justice system since when they adequately give information to their bosses on various issue in the organization and are accountable for the daily operations, and this implies that they increase the chances of finding solutions rather rapidly by working together to find the most viable solutions to existing problems. The system factor in the criminal justice work place is usually created by the management, which in regards to the police department determines whether the police force will be effective or not. A good and effective system will ensure that justice is served to all who need it since officers will do what   the system requires of them and also officers employed in the system will find it more comfortable working in the department. The structure in the police department determines each and every role played by an officer and their effect iveness in the department.

Aluminium Presentation Essay Example for Free

Aluminium Presentation Essay Ive done my presentation on Aluminium and will be talking to you about its properties, where its found and its uses and why its the best material for these purposes. Aluminium. Chemical symbol Al. Atomic weight approx 27 Atomic number 13 and electronic configuration 2-8-3. Appearance- pure aluminium is a shiny silvery white material. Down to the molecular level aluminium has a polycrystalline structure where the metal has cooled from different areas of the material where. Where these areas meet are called the grain boundary. This structure gives aluminium its many properties. Density The first thing you notice about aluminium is its relatively lightweight. It has a density of 2,7g/mm3. This is about 1/3 the weight of a piece of steel the same size. Resists Corrosion like many other metals aluminium is very reactive in air and thus a fine layer of aluminium oxide is created on the surface. This provides provides a highly effective barrier to the ravages of air, temperature, moisture and chemical attack. 0.000000635cm Highly reflective Free electrons in the metal absorb the light energy then immediately re emit it.emits 90* of the light that it absorbs. This would not happen if free electrons wernt present. Ductile Aluminium can be bent and shaped extremely easily. This is because of it polycrystalline structure. Along the grain boundaries of the material dislocations in the atoms occur. It is the movement of these dislocations that makes this metal very ductile. This is good for shaping aluminium but very bad for its strength. Strength like many other of aluminiums properties it depends on the purity of the material 99.996 per cent pure aluminium has a tensile strength of about 49 megapascals (MPa), Unlike materials such as steel, aluminium gets stronger as temperature drops. rising to 700 MPa following alloying and suitable heat treatment. Conductance aluminium is one of the best conductors of electricity. Because it is a metal it ontains almost a soup of free flowing electrons which make it very easy for a current to flow through it. Aluminium itself conducts about 63% of that of copper of the same mass. Aluminium is also a great conductor of heat conducting about 220 Watts Occurance Aluminium is the most abundant metal in the earths crust. Only the non metal elements oxygen and silicon are more abundant. The largest deposits of aluminium are found in Australia, Guinea and West Indies. Aluminium does not occur in its pure form but as either an aluminium silicate or as bauxite which consists of aluminium oxide and commonly iron oxide also. As seen in the picture the aluminium ore is a redish colour this is caused by the iron ore mix. Bauxite is produced through chemical weathering of rocks in tropical climate. Extraction The method now used for aluminiums commercial production is the electrolysis. An iron pot, lined with carbon, is charged with cryolite and heated to about 800à ¯Ã‚ ¿Ã‚ ½C by the electric current. For the electrolysis, a bundle of carbon rods is used as the anode, while the pot itself forms the cathode. The oxygen liberated combines with the carbon of the anode to form carbon dioxide, while the aluminium falls to the bottom of the vessel. More alumina is added and the process continued, the molten metal being drawn off from time to time. Uses Aircrafts Mainly because of its lightweight. This feature is utilized by aircraft and can cut the weight down by up to 5 tonnes. This means planes can fly fast and be more economical. This also applies to all transportation allowing increased loading capacity also. Usually it isnt actually pure aluminium because of its poor strength but instead alloys of aluminium which can be as strong as 700 Mpa. Buildings Aluminium is used in construction mainly because of its corrosion resistance. Its is also a very easy material to shaped and mould making it ideal for the uses in construction Electrics Aluminium is a very economical material as an electric conductor and is widely utilized in power transmission cables. Aluminium only has 60% conductivity of copper but weighs a 1/3 as much making it ideal for large power cables. Heat aluminium is about 3 times as thermal conductive as steel. This feature is used in cooking utensils, engines, air conditioners and it is also being used in energy saving equipment such as solar cells. Reflective Because aluminium is reflective of most electric, heat and light waves it is being more commonly used in the insulation of homes. Harsh conditions Unlike steel which gets brittle in cold conditions aluminium get stronger making it the perfect material to use in harsh conditions. Aluminium is now being used on snow-mobiles Cans aluminium is a non toxic material, smooth, easily washable and is hygienic because no germs an grow on it. Also because malleability it can be shaped into any shaped or form making it ideal for packaging Because of aluminiums low melting point approx 600 C it is the ideal material in this age of energy and resource saving to recycle.

Mid-Term Break - Seamus Heaney On my first Sonne - Ben Jonson Which Ess

Mid-Term Break - Seamus Heaney On my first Sonne - Ben Jonson Which poem expresses the experience of grief best? On my first Sonne is a very direct way of expressing the grief that occurs when a child in the family dies. It is about the feelings that Ben Jonson goes through, and the poem describes his emotions and thoughts in detail. On the other hand, Mid-Term Break uses indirect ways to portray grief, by describing events that happen after the death. "Farewell, thou child". On my first Sonne openly addresses the deceased boy in the poem. The poem is to him, and about him. Ben Jonson uses faith to help him through the bereavement. Biblical phrases ("child of my right hand", "my sinne was" and "all his vowes") are scattered through the text. Jonson's thoughts are deeply Christian ("tho'wert lent to me" and "the state he should envie"). "O, could I loose all father, now." Here he candidly expresses his feelings by crying out to God. He speaks bluntly about the grief he is experiencing, and tries to reason with it as well by using Christianity concepts, "For why / Will man lament the state he should envie?". He curses himself for putting too much love and faith into the boy, almost believing in him too much ("my sinne was too much hope of thee, lov'd boy"). I think that On my first Sonne is a poem towards God and the deceased, but it is written for the comfort of Ben Jonson himself, to reassure him about his son's death. The poem is very emotional, and very involved. On my first Sonne uses a regular rhythm, with occasionally rhymes. This creates a profound effect, and this in emphasised in certain places, for example "and I thee pay / Exacted by fate, on the just day." The regularity of the rhy... ... time to think about his brother's death, and then approaches his brother alone. The phrase "wearing a poppy bruise" has overtones of death (poppies are associated with Remembrance day), but also the fact that he is "wearing" a bruise rather than having a bruise indicates that he is not normally in that state, and the poet does not see him as such. The rhythm works best in this poem in the final line, "a four foot box, a foot for every year". The slow pace stresses the tragedy of the event, and gives an insight into the mind of the poet, after he has had a chance to think about it. In conclusion, I believe that the poem Mid-Term Break the experience of grief better than On my first Sonne, because I prefer an indirect approach to the emotions surrounding bereavement. The style of writing and context make it more modern, and makes it seem more relevant.

There is nothing like “Diminishing returns” in the real world

The Law of Diminishing Returns states that increasing one variable input, while keeping the rest of the variables constant, will eventually yield a result opposite the intended purpose of the variable change. The change will rise at first, reach peak and will eventually skew downwards sooner or later (Tutor2u Website). In economics, when marginal physical product (MPP) starts to decline, diminishing returns to labor occurs. This means that total output will increase at a decreasing rate when more workers are employed. Eventually a decline in marginal product leads to a fall in average product. What accounts for this decline in MPP?The answer lies in the ratio of labor to other factors of production. For instance, a third worker begins to crowd the facilities available. We still have only the one sewing machine. Two people cannot sew at the same time. As a result, some time is wasted, as the operators wait for their turns at the machine. Even if they split up the various jobs, there w ill still be some downtime, since measuring and cutting are not as time-consuming as sewing. In this sense, we cannot make full use of a third worker. The relative scarcity of other inputs (capital and land) constrains the marginal physical product of labor (Schiller 2005, 90-91).Eventually, if we add more workers, this will cause so much congestion that marginal product would become negative and total product would decline. At the extreme, the addition of more and more labor would exhaust all the standing room available and total product would fall to zero. Another example of this is when applying higher amounts of fertilizer in a tract of land, a farmer expects higher yields during harvest time. But, there is just one point that even though you will apply more fertilizer in your soil, the total number of yield will just be the same, if not decreasing slowly.In the real world, the concept of diminishing returns is practically applicable in all aspects of life, not only in economics , where resources are available. For example, if you like pizza, I’ll give you two slices of pizza. That would taste great at first. However, when I require you to eat three whole boxes of pizza, there is this nth number of slice where you would give up eating pizza because you already have enough. If you do not stop eating, chances are: you are going to throw up.Diminishing returns, is supposedly the economic equivalent of negative feedback, which argue that market demand decreases at a point where the need becomes saturated. The initial sales of a new car model stir up considerable market interest; subsequent sales generate increasingly less interest. At some point, the market for that car stabilizes. A glass of lemonade after a round of tennis on a hot day would be quite important to you, and you would probably be glad to pay a child at a lemonade stand, say, a dollar for it. However, the next glass is of less value to you and the third glass, even lesser.The Law of Dimini shing Returns favor no time, person, or place as they allow no particular advantage except the advantage that assure the â€Å"free market† principle. Diminishing returns impede unnatural growth and prevent any given system from monopolizing environmental resources. Thus, there is plenty of opportunity to go around. This means there are chance for everybody: with hard work and intelligence, any child who is born a citizen of the United States can become president; any mom and dad could do business to own huge corporation, and any town can become a Silicon Valley.

Fuzzy Logic Algorithms for Minor Edge Detection

IntroductionThe early stages of vision fixing distinguish includes in images that are important to measuring the construction and belongingss of points in a scene. Edges are one such highlighted characteristics. Edges are notable nearby alterations in the image and are indispensable high spots for look intoing images. Edges normally occurs between two distinguishable boundary in a image. Edge location is much of the clip the initial stage in retrieving informations from images or images. Because of its significance, border find keeps on being a dynamic geographic expedition zone. Edge find refers to the process of distinguishing and happening crisp discontinuities in a image. The discontinuities are sudden alterations in pel power which characterize the bounds of objects in a scene. The indispensable border find system is to concentrate the degree of fluctuation between diverse pels by put to deathing edge-location operators for every small matrix country.Edges obtained from non-triv ial images are often hampered by discontinuity, connoting that the border decompression sicknesss are non associated, losing border subdivisions and false borders non associating to intriguing phenomena in the image, therefore perplexing the attendant undertaking of interpreting the image information. Edge location is one of the cardinal paces in image or image handling, image scrutiny, image design recognition, and PC vision systems. In Digital Image Processing there are typical schemes for border location like First Order Derivative ( gradiant method ) , Second-Order Derivative and Optimal Edge Detection to separate the border. The gradiant methods are utilised for image ascent or to better the inside informations shown in the image and these derivative operations can be utilized for location of borders present in the image.In our proposed work, Sobel border sensor and enhanced border sensor algorithm utilizing fuzzed logic is utilised to place borders of a given image. The pick o f Sobel border sensor algorithm is propelled by the echt actuality that it consolidates each border location moreover goes about as smoothing decision maker belongings.Fuzzy image processing is the assemblage of all methodological analysiss that comprehend, speak to and treat the images, their fragments and high spots as fuzzed sets. The representation and fixing rely on upon the fuzzed method and on the issue to be tackled. Fluzzy sets, so, are competent to bespeak imprecise constructs.1.1 LITERATURE SURVEYTo transport out any undertaking work it is really indispensable to understand the current scenario and the engineering virtues and demerits of the subject. In this context, literature study has been carried out to explicate the job and to take the aims of the undertaking work.Different border sensing techniques have been studied from the paper [ 1 ] .The writer G.T. Shrivakshan presents virtues and demerits of different border sensing methods like Sobel, Prewitt and Robert’s, Canny operator. From this treatment it is apparent that sobel border sensor is advantageous than other techniques. The execution of sobel border sensor in Xilinx is presented by writer Ravi.S et.al [ 2 ] . FPGA based design and execution of country efficient Sobel Edge sensing filter is presented utilizing a combination of hardware and package constituents Rajesh Mehra et.al [ 3 ] and in this paper pipelined method is used to implement the border sensing filter. This attack is utile to better the system public presentation. The execution of Sobel border sensor is presented by writers R. Vincent et.al [ 4 ] . Here a brace of3Ten3whirl masks is used, one gauging gradient in the x-direction and the other gauging gradient inY–direction in Matlab. And states that Sobel sensor is improbably sensitive to resound in images, it efficaciously highlights them as borders. Hence, Sobel operator is recommended in monolithic informations communicating found in informations transportation. The writers Kiranpreet Kaur et.al [ 5 ] studies the execution of fuzzy border sensing in MATLAB environment to observe the borders of an input image by scanning it throughout utilizing a 2X2 pel window. The consequences of the implemented algorithm has been compared with the criterion border sensing algorithm such as ‘Canny’ , ‘Sobel’ , ‘Prewit’ and ‘Roberts’ . The fuzzy regulation based image processing algorithm for observing the borders in the image, based on the alterations in the grey values is presented by writers C. Kavitha et.al [ 6 ] . Gray values of the image are taken as the input of the fuzzy system and a floating mask of 3Ãâ€"3 is applied on the image to observe border pel utilizing the preset fuzzy regulations. The execution of fuzzed logic to observe the borders in MATLAB is presented by writers Er.Mandeep Singh Sandhu et.al [ 7 ] .Edges are detected in horizontal, perpendicular and in diagonal waies utilizing 5X5 pel window. And it besides presents different advantages and disadvantages of fuzzed logic. The consequences of the implemented algorithm has been compared with the criterion border sensing algorithm such as ‘Sobel’ and ‘Roberts’ . 1.2 PROBLEM FORMULATION From the literature study it has been observed that there are issues of false border find, losing genuine borders, making slender or thick lines and issues because of noise and so on. So fuzzed logic has been used for minor border sensing in the image and besides fuzzed logic algorithm helps to get the better of the false border detected by the sobel border operator.The MATLAB executing of typical border locater has been done before nevertheless from literature study it has been observed that there is drawback of immense computation clip. So to suppress the issue the proposed algorithm is implemented in XILINX.1.3 AimThe chief aims of the undertaking work that are to be carried out are as followsTo plan and implement the sobel border sensor and enhanced border sensor algorithm utilizing fuzzed logic in Matlab.To plan and implement the sobel border sensor and enhanced border sensor algorithm utilizing fuzzed logic in Xilinx.To cipher the SNR, PSNR, RMSE of sobel border sensor and enha nced border sensor algorithm utilizing fuzzed logic.To cipher the country and hold of sobel border sensor and enhanced border sensor algorithm.1.4MethodologyLiterature Survey to be carried out on border sensor algorithm in Xilinx. Survey includes surveies on different border sensing techniques and different algorithms.To develop the sobel border sensor and enhanced border sensor algorithm utilizing fuzzed logic in Matlab and Xilinx.Using Xilinx package calculates the country and hold of sobel border sensor and enhanced border sensor algorithm to be implemented.Comparing the border images of Sobel and implemented enhanced border sensor algorithm utilizing fuzzed logic.Calculating the SNR, PSNR, RMSE of sobel border sensor and enhanced border sensor algorithm utilizing fuzzed logic.1.5 TOOLS REQUIRED1.5.1 Software Requirementsi‚ · Matlab ( 7.10 )Xilinx1.5.2 Hardware RequirementSpartan 3E1.6ApplicationsUsed in satellite images edge sensing. Satellite images consist of many char acteristics and objects with different forms and size. Edge sensing helps to pull out utilize full information.Used in medical images edge sensing for object acknowledgment of the human variety meats.Grape leaf disease sensing and analysis.Bettering image quality.Egg shell defects sensing on white eggs.1.7 ADVANTAGESAn advantage of using a bigger size sobel mask is that the mistake because of the impacts of noise are decreased by vicinity averaging inside of the country of the mask.An favourable place of using a mask of uneven size is that the operators are focused and hence can supply an rating that is based on Centre pel.Fuzzy techniques can cover with the ambiguity and vagueness proficiently.Fuzzy logic is tolerant of unsure informations.1.8 DISADVANTAGESMinor strength fluctuations in grey scale images can non be detected utilizing sobel operators.Sobel operator detects false borders along with true borders.1.9 ORGANIZATION OF REPORT This study consists of 5 chapters and mentions. Chapter 1:Presents the Introduction, Literature study, Problem preparation, Objectives, Tools required, Methodology, Applications, Advantages, Disadvantages and eventually the Project study organisation. Chapter 2:Provides brief theory about the undertaking. Chapter 3:Presents the inside informations about execution of sobel operator in matlab. Chapter 4:Provides the consequences and treatments of undertaking. Chapter 5:Provides the decisions and future work about the undertaking. Mentions:Provides sufficient mentions relevant to the undertaking for easy apprehension of the capable affair and some of the beginnings used in development.

Desert Pavement Theories

Desert Pavement Theories When you decide to visit the desert, you usually have to go off the pavement, onto a dirt road. Sooner or later you arrive in the brightness and space that you came for. And if you turn your eyes from the distant landmarks around you, you may see another kind of pavement at your feet, called desert pavement. A Street of Varnished Stones Its not at all like the drifting sand that people often picture when they think of the desert. Desert pavement is a stony surface without sand or vegetation that covers large parts of the worlds drylands. Its not photogenic, like the twisted shapes of hoodoos or the eerie forms of dunes, but seeing its presence on a wide desert vista, dark with age, gives a hint of the delicate balance of slow, gentle forces that create desert pavement. It is a sign that the land has been undisturbed, perhaps for thousands- hundreds of thousands of years. What makes desert pavement dark is rock varnish, a peculiar coating built up over many decades by windblown clay particles and the tough bacteria that live on them. Varnish has been found on fuel cans left in the Sahara during World War II, so we know that it can form fairly fast, geologically speaking. What Creates Desert Pavement What makes desert pavement stony is not always so clear. There are three traditional explanations for bringing stones to the surface, plus a much newer one claiming that the stones started out at the surface. The first theory is that the pavement is a lag deposit, made of rocks left behind after the wind blew away all the fine-grained material. (Wind-blown erosion is called deflation.) This is clearly so in many places, but in many other places, a thin crust created by minerals or soil organisms binds the surface together. That would prevent deflation. The second explanation relies on moving water, during the occasional rains, to winnow out the fine material. Once the finest material is splashed loose by raindrops, a thin layer of rainwater, or sheet flow, sweeps it away efficiently. Both wind and water could work on the same surface at different times. The third theory is that processes in the soil move stones to the top. Repeated cycles of wetting and drying have been shown to do that. Two other soil processes involve the formation of ice crystals in the soil (frost heave) and salt crystals (salt heave) in places with the right temperature or chemistry. In most deserts, these three mechanisms- deflation, sheet flow, and heave- can work together in various combinations to explain desert pavements. But where there are exceptions, we have a new, fourth mechanism. The Born at the Surface Theory The newest theory of pavement formation comes from careful studies of places like Cima Dome, in the Mojave Desert of California, by Stephen Wells and his coworkers. Cima Dome is a place where lava flows of recent age, geologically speaking, are partly covered by younger soil layers that have desert pavement on top of them, made of rubble from the same lava. The soil has been built up, not blown away, and yet it still has stones on top. In fact, there are no stones in the soil, not even gravel. There are ways to tell how many years stone has been exposed on the ground. Wells used a method based on cosmogenic helium-3, which forms by cosmic ray bombardment at the ground surface. Helium-3 is retained inside grains of olivine and pyroxene in the lava flows, building up with exposure time. The helium-3 dates show that the lava stones in the desert pavement at Cima Dome have all been at the surface the same amount of time as the solid lava flows right next to them. Its inescapable that in some places, as he put it in a July 1995 article in Geology, stone pavements are born at the surface. While the stones remain on the surface due to heave, deposition of windblown dust must build up the soil beneath that pavement. For the geologist, this discovery means that some desert pavements preserve a long history of dust deposition beneath them. The dust is a record of ancient climate, just as it is on the deep sea floor and in the worlds ice caps. To those well-read volumes of Earth history, we may be able to add a new geologic book whose pages are desert dust.

The 50 Most Common Irish Surnames

The 50 Most Common Irish Surnames Ireland was one of the first countries to adopt hereditary surnames. Many of these names were devised during the reign of Brian Boru, the High King of Ireland who fell defending Ireland from the Vikings at the Battle of Clontarf in 1014 AD. 50 Common Irish Surnames Many of these early Irish surnames began as patronyms to identify a son separately from his father or a grandson from his grandfather. This is why it is very common to see prefixes attached to Irish surnames. Mac, sometimes written Mc, is the Gaelic word for son and was attached to the fathers name or trade. O is a word all by itself, signifying grandson when attached to a grandfathers name or trade. The apostrophe that usually follows the O actually comes from a misunderstanding by English-speaking clerks in Elizabethan time, who interpreted it as a form of the word of. Another common Irish prefix, Fitz, derives from the French word fils, also meaning son. Brennan This Irish family was very widespread, settling in Fermanagh, Galway, Kerry, Kilkenny, and Westmeath. The Brennan surname in Ireland is now mostly found in County Sligo and the province of Leinster. Brown or Browne Common in both England and Ireland, the Irish Brown families are most commonly found in the province of Connacht (specifically Galway and Mayo), as well as Kerry. Boyle The O Boyles were chieftains in Donegal, ruling west Ulster with the O Donnells and the O Doughertys. Boyle descendants can also be found in Kildare and Offaly. Burke The Norman last name Burke originated from the borough of Caen in Normandy (de burg means of the borough). The Burkes have been in Ireland since the 12th century, settling mainly in the province of Connacht. Byrne The O Byrne (Ó Broin) family originally came from Kildare, until the Anglo-Normans arrived and they were driven south to the Wicklow mountains. The Byrne surname is still very common in Wicklow, as well as Dublin and Louth. Callaghan The Callaghans were a powerful family in the province of Munster. Individuals with the Irish surname Callaghan (also spelled Callahan) are most numerous in Clare and Cork. Campbell Campbell families are very prevalent in Donegal (most are descended from Scottish mercenary soldiers), as well as in Cavan. Campbell is a descriptive surname meaning crooked mouth. Carroll The Carroll surname  (and variants such as OCarroll) can be found throughout Ireland, including Armagh, Down, Fermanagh, Kerry, Kilkenny, Leitrim, Louth, Monaghan, and Offaly. There is also a MacCarroll family (anglicized to MacCarvill) from the province of Ulster. Clarke One of the oldest surnames in Ireland, the O Clery surname (anglicized to Clarke) is most prevalent in Cavan. Collins The common Irish surname Collins originated in Limerick, though after the Norman invasion they fled to Cork. There are also Collin families from the province of Ulster, most of whom were probably English. Connell Three distinct O Connell clans, located in the provinces of Connacht, Ulster, and Munster, are the originators of many of the Connell families in Clare, Galway, Kerry. Connolly Originally an Irish clan from Galway, the Connolly families settled in Cork, Meath, and Monaghan. Connor In Irish Ó Conchobhair or Ó Conchà ºir, the Connor last name means hero or champion. The O Connor family was one of three royal Irish families; they are from Clare, Derry, Galway, Kerry, Offaly, Roscommon, Sligo and the province of Ulster. Daly The Irish Ó Dlaigh comes from dil, meaning a place of assembly. Individuals with the Daly surname hail primarily from Clare, Cork, Galway, and Westmeath. Doherty The name in Irish (Ó Dochartaigh) means obstructive or hurtful. In the 4th century, the Dohertys settled around the Inishowen peninsula in Donegal, where theyve primarily stayed. The Doherty surname is the most common in Derry. Also spelled Dougherty and Daugherty. Doyle The Doyle last name comes from dubh ghall, the dark foreigner, and is thought to be Norse in origin. In the province of Ulster, they were known as Mac Dubghaill (MacDowell and MacDuggall). The greatest concentration of Doyles is in Leinster, Roscommon, Wexford, and Wicklow. Duffy Ó Dubhthaigh, anglicized to Duffy, comes from an Irish name meaning black or swarthy. Their original homeland was Monaghan, where their surname is still the most common. They are also from Donegal and Roscommon. Dunne From the Irish for brown (donn), the original Irish name Ó Duinn has by now lost the O prefix. In the province of Ulster, the final e is omitted. Dunne is the most common surname in Laois, where the family originated. Also occasionally spelled Donne. Farrell The O Farrell chieftains were lords of Annaly near Longford and Westmeath. Farrell is a surname generally meaning valiant warrior. Fitzgerald A Norman family who came to Ireland in 1170, the Fitzgeralds (spelled Mac Gearailt in parts of Ireland) claimed vast holdings in Cork, Kerry, Kildare, and Limerick. The surname Fitzgerald translates directly as son of Gerald. Flynn The Irish surname Ó Floinn is prevalent in the province of Ulster. However, the F is no longer pronounced and the name is now Loinn or Lynn. The Flynn surname can also be found in Clare, Cork, Kerry, and Roscommon. Gallagher The Gallagher clan has been in County Donegal since the 4th century and Gallagher  is the most common surname in this area. Healy The Healy surname is most commonly found in Cork and Sligo. Hughes The Hughes surname, both Welsh and Irish in origin, is most numerous in three provinces Connacht, Leinster, and Ulster. Johnston Johnston is the most common name in the Irish province of Ulster. Kelly Kelly families of Irish origin come primarily from Derry, Galway, Kildare, Leitrim, Leix, Meath, Offaly, Roscommon, and Wicklow. Kennedy The Kennedy surname, both Irish and Scottish in origin, hails from Clare, Kilkenny, Tipperary, and Wexford. Lynch The Lynch families (Ó Loingsigh in Irish) were originally settled in Clare, Donegal, Limerick, Sligo, and Westmeath, where the Lynch surname is most common. MacCarthy The MacCarthy surname originated primarily from Cork, Kerry, and Tipperary. Also spelled McCarthy. Maguire The Maguire surname is the most common in Fermanagh. Also spelled McGuire. Mahony Munster was the territory of the Mahoney clan, with Mahonys (or Mahoneys) being most numerous in Cork. Martin The Martin surname, common in both England and Ireland, can be found primarily in Galway, Tyrone, and Westmeath. Moore The ancient Irish Moores settled in Kildare, while most Moores are from Antrim and Dublin. Murphy The most common of all Irish names, the Murphy surname can be found in all four provinces. Murphys are primarily from Antrim, Armagh, Carlow, Cork, Kerry, Roscommon, Sligo, Tyrone, and Wexford, however. Murray The Murray surname is especially prolific in Donegal. Nolan Nolan families have always been very numerous in Carlow, and can also be found in Fermanagh, Longford, Mayo, and Roscommon. OBrien One of Irelands leading aristocratic families, the O Briens are primarily from Clare, Limerick, Tipperary, and Waterford. ODonnell The O Donnell clans originally settled in Clare and Galway, but today they are most numerous in County Donegal. Sometimes modified to ODonnelly. ONeill One of three royal Irish families, the O Neills are from Antrim, Armagh, Carlow, Clare, Cork, Down, Tipperary, Tyrone, and Waterford. Quinn From Ceann, the Irish word for head, the name Ó Cuinn means intelligent. In general, Catholics spell the name with two ns, while Protestants spell it with one. The Quinns are primarily from Antrim, Clare, Longford, and Tyrone, where their surname is the most common. Reilly Descendants of the O Conor kings of Connacht, the Reillys are primarily from Cavan, Cork, Longford, and Meath. Ryan The Ó Riain and Ryan families of Ireland are primarily from Carlow and Tipperary, where Ryan is the most common surname. They can also be found in Limerick. Shea Originally the Shea family was from Kerry, though they later branched out to Tipperary during the 12th century and Kilkenny by the 15th century. Sometimes modified to Shay. Smith The Smiths, both English and Irish, are primarily from Antrim, Cavan, Donegal, Leitrim, and Sligo. Smith is actually the most common surname in Antrim. Sullivan Originally settled in County Tipperary, the Sullivan family spread into Kerry and Cork, where they are now most numerous and their surname is the most common. Sweeney Sweeney families are found primarily in Cork, Donegal, and Kerry. Thompson This English name is the second most common non-Irish name found in Ireland, especially in Ulster. The Thomson surname, without the p, is Scottish. Thomson is most common in Down. Walsh The name came into use to describe the Welsh people who came to Ireland during the Anglo-Norman invasions. Walsh families were very numerous throughout all four provinces of Ireland. Walsh is the most common surname in Mayo. White Spelled de Faoite or Mac Faoitigh in Ireland, this common name stems mainly from the le Whytes who came to Ireland with the Anglo-Normans. White families can be found in Ireland throughout Down, Limerick, Sligo, and Wexford.