Thursday, November 28, 2019

Family Structure Analysis via Film †Kramer vs. Kramer

The entire infrastructure of people’s culture/civilization/society is comprised of a socialization process. This process is interwoven with personal impressions, ideas, emotions and prejudices as ideologies. Inherited norms, customs, and ideologies are vital components that comprise the socialization process.Advertising We will write a custom essay sample on Family Structure Analysis via Film – Kramer vs. Kramer specifically for you for only $16.05 $11/page Learn More Such a process equips an individual with the necessary skills needed to function in their society and thereby insures social and cultural continuity or permanence (Clausen, 5). Key to the socialization process is the family unit which is the cornerstone and basic/indelible institution of any civilization. Through the family unit, in particular the nuclear family unit (a biologically related family comprised of a father, mother, and children who dwell in one household) the abov e mentioned components are taught. How has the socialization process via the family unit been reflected in the artistic component of culture? It is mirrored simply through mass media entertainment (film/cinema, radio, television, etc.) whose influence and proliferation has been phenomenal. Technological expediency made it an unequaled facet of entertainment in the 20th century and cultural measuring rod. A cadre of distinguished and thought provoking films has depicted the family unit and its dynamics with Kramer vs. Kramer among them. The 1979 American film version of Avery Corman’s novel of the same, Kramer vs. Kramer was a directed by the prolific director/screenwriter Robert Benton and stared Dustin Hoffman, Meryl Streep, Jane Alexander, film legend Howard Duff and newcomer/child star, Justin Henry. The film chronicles the separation and eventual divorce of Ted (Hoffman) and Joanna Kramer and its impact on them as well as their son, Billy (Henry). A workaholic advertising executive, Ted has become mentally estranged from his family compelling Joanna, a stay at home mother who feels she has lost her sense of self, to leave.Advertising Looking for essay on art and design? Let's see if we can help you! Get your first paper with 15% OFF Learn More Catapulted into single parenthood, Ted struggles to relate and connect with Billy. Thru time and with the help of his neighbor/ kindred spirit Margaret (Alexander), another single parent, they cope and eventually bond. Joanna returns for Billy and an emotional/heart wrenching custody battle ensues with Ted being represented by hardcore attorney John Shaunessy (Duff). Under the premise that a mother is best fit to raise a child, the court awards custody to Joanna. In the end Joanna sincerely comes to the realization that it is better for Billy to remain with Ted. Kramer vs. Kramer was indicative of the social reality of the 70’s and 80’s which saw a dramatic shift in attitudes about parenthood. Although a mother physically births a child, both parents are involved in the conception, nurturing and raising process. The traditional or stereotypical nuclear family portrays a two parent home where the father is present physically but not mentally in the nurturing and raising portion as depicted by Ted. Society promotes and encourages a two parent home with the hidden reality that the mother must be present to truly raise the child or is better suited to raise a child (e.g. custody awarded to Joanna). A hidden imbalance existed in the Kramer home and Joanna’s leaving brought this imbalance to the forefront. It took the removal of the mother to illustrate the importance of the father being in the home to help raise children. Ted was not a nurturing father/parent and only focused on what he wanted Joanna to be as parent/wife and not himself. As he confesses in one scene, â€Å"I kept trying to make her be a certain kind of person. A certain kind of wife that I thought she was supposed to be (Kramer vs. Kramer).† Both parents must be actively involved in the nurturing and raising of their children. Loss of sense of self and self worth in a parenting situation (Joann’s leaving) is the result of lack of concern for each other’s wellbeing and teamwork. A parent’s true value to their children is imparting a sense of themselves (character, etc.) to them. The film’s ending implies that although the family unit is broken, both Ted and Joanna come to accept and value each others roles (father, mother) and most importantly their primary parental responsibility – the wellbeing of their child. Bibliography Clausen, John A. Socialization and Society. Boston: Little Brown and Company, 1968.Advertising We will write a custom essay sample on Family Structure Analysis via Film – Kramer vs. Kramer specifically for you for only $16.05 $11/page Learn More Kramer vs. Kramer, 1979. This essay on Family Structure Analysis via Film – Kramer vs. Kramer was written and submitted by user Kimber A. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Sunday, November 24, 2019

ICE or Immigration and Customs Enforcement

ICE or Immigration and Customs Enforcement Immigration and Customs Enforcement (ICE) is a bureau of the Department of Homeland Security, created on March 1, 2003. ICE enforces immigration and customs laws and works to protect the U.S. against terrorist attacks. ICE achieves its goals by targeting illegal immigrants, particularly those people, money,  and materials that support terrorism and other criminal activities. The HSI Division of ICE Detective work is a big part of what ICE does. Homeland Security Investigations (HSI) is a division of U.S. Immigration and Customs Enforcement (ICE) that is charged with investigating and gathering intelligence on a wide range of criminal activities, including immigration offenses. HSI gathers the evidence that makes the cases against criminal operations. The agency has some of the top detectives and information analysts in the federal government. In recent years, HSI agents have investigated human smuggling and other human rights violations, art theft, trafficking, visa fraud, drug smuggling, arms dealing, gang activities, white-collar crimes, money laundering, cyber crimes, counterfeit money and prescription drug sales, import/export activity, pornography, and blood-diamond dealing. Formerly known as the ICE Office of Investigations, HSI has about 6,500 agents and is the largest investigative division in Homeland Security, ranking second to the Federal Bureau of Investigation in U.S. government. HSI also has strategic enforcement and security capabilities with officers who perform paramilitary-type duties similar to police SWAT teams. These Special Response Team units are used during high-risk operations and have provided security even during the aftermaths of earthquakes and hurricanes. Much of the work HSI agents do is in cooperation with other law enforcement agencies at the state, local and federal levels. ICE and the H-1B Program The H-1B visa program is popular with both political parties in Washington but it also can be challenging for U.S. immigration officials to ensure that participants are following the law. U.S. Immigration and Customs Enforcement (ICE) devotes considerable resources trying to rid the H-1B program of fraud and corruption. The visa is designed to allow U.S. businesses to temporarily employ foreign workers with specialized skills or expertise in fields such as accounting, engineering or computer science. Sometimes businesses don’t play by the rules, however. In 2008, U.S. Citizenship and Immigration Services concluded that 21 percent of H-1B visa applications contained fraudulent information or technical violations. Federal officials have since put in more safeguards to ensure that the visa applicants comply with the law and accurately represent themselves. In 2014, USCIS approved 315,857 new H-1B visas and H-1B renewals, so there is plenty of work for federal watchdogs, and ICE investigators, in particular, to do. A Case of Visa Fraud in Texas A case in Texas is a good example of the work ICE does in monitoring the program. In November 2015, after a six-day trial in Dallas before U.S. District Judge Barbara M.G. Lynn, a federal jury convicted two brothers of felony visa fraud and abuse of the H-1B program. Two brothers Atul Nanda, 46, and his brother, Jiten Jay Nanda, 44, created, established, and ran a computer company located in Carrollton, Texas, which recruited foreign workers with expertise who wanted to work in the U.S. They sponsored H-1B visas, claiming that there were full-time positions with annual salaries for the new workers, but did not, in fact, have actual positions for them at the time they were recruited. Instead, the brothers used the people as a pool of skilled part-time workers. The two were each convicted on one count of conspiracy to commit visa fraud, one count of conspiracy to harbor illegal aliens, and four counts of wire fraud, according to federal officials. The penalties are severe for visa fraud. The conspiracy to commit visa fraud count carries a maximum statutory penalty of five years in federal prison and a $250,000 fine. The conspiracy to harbor illegal aliens count carries a maximum statutory penalty of 10 years in federal prison and a $250,000 fine. Each wire fraud count carries a maximum statutory penalty of 20 years in federal prison and a $250,000 fine.

Thursday, November 21, 2019

Finite Element Analysis Essay Example | Topics and Well Written Essays - 2000 words

Finite Element Analysis - Essay Example This is a comprehensive finite element study on an infinite plane in finding the stress concentration factor point A of the plane to obtain the longitudinal stress profile from the points adjacent to the hole. The study is also focused on giving the stress value in the point A of the plane. In doing the exercise, the convergence study of the element will be achieved. The method of analysis in this particular study is by ANSYS program. However, the method is compared to the Saint-Venant principle to create more clarity and credibility. Introduction FEA comprises of a computer representation of a design/material, which is stressed and examined for particular results. Finite element analysis is used in new product design, and accessible product elegance. A company is able to authenticate a recommended plans will be able to execute to the customer’s provisions prior to manufacture/ assembly. Modifying an existing product or structure is utilized to qualify the product or structure for a new service condition. In case of structural failure, FEA may be used to help determine the design modifications to meet the new condition. The complete logical explanation for the state of stress caused by a hole in a plate is essentially and relatively complex. Since the study is focused on providing the actual stress on the finite element, the relation of the Saint-Venant principle and the study is directly useful in the comparison of the used model in the study. The principle states that the strain in the bodies at points that are sufficiently remote from the points of the applied load depends on the static resultant of the loads and not the distribution of the load. This comes to the realisation that the stress produced is a resultant of the point loads. The stress concentration is an increase in the stress along the cross section area that can be discontinued in this case by a hole in the plate. For instant, the distribution of the stress if there was no hole in the pla te will be non-uniform in the strain as the strain grows linear further away. In this study, the use of a quarter of the shape is used due to symmetry reasons. In this case, the solution is an analytical since the plate is infinite and large with a hole. Results from the simulation done will be compared with the solutions. Increasing the mesh density is useful to determine the closest solution to the problem. This is in line with making sure one knows the point of mesh refinement has reached. In this problem, the mesh density was increased by doubling the element from 12, towards 192 elements for each percentage error calculations. Objective The paper is focused using engineering method in providing a definite stress analysis on the longitudinal points of A and B using nodally average values obtained from the calculations. The main aim is to determine the stress concentration factor in the point A of the plate and the longitudinal stress in between points A and B. In the end of the study, one will be able to conduct a stress analysis with ANSYS without any difficulty as the procedures are stipulated in every step of the calculations. The results of the project will give the deflection, percentage error and the stress on the plate. The use of a quarter of the shape is utilized to produce the calculations of one part that will provide the merit to calculate the whole value of the plane.

Wednesday, November 20, 2019

Sartre's Philosophy of Life Essay Example | Topics and Well Written Essays - 2250 words

Sartre's Philosophy of Life - Essay Example 346). Though Sartre does not believe in true contention, this paper analyzes the extent to which Sartre's philosophy connote a happy and prosperous life. Existentialism is a doctrine that to some extent supports and enhances human subjectivity to lead an authentic life, but at the same time it overrides the evil nature hidden behind human consciousness, and appears in a 'naturalistic' way of perceiving life. Sartre points out that man is emotional in nature and feel the way things physically appear to him. He, therefore, is free and well aware of the fact that this consciousness can bring him pain and anguish in many ways. According to Sartre it is better to say that man is unhappy and remains so, until he discovers the true purpose of his appearance in the world. Therefore, in order to live an authentic life, man must not consider such consciousness that brings him any pain or despair and obstructs in his way of attaining true freedom. A man in the world according to Warnock (1970) however, adopts some emotional attitude to which he reacts and perform towards. In order to acquire tranquility he must feel the 'sense of nothingness' which determines the true nature of his feeling (Warnock, 1970 p. 93). Other than emo Is Human Consciousness a way to happiness Other than emotional respects, Warnock (1970) points out that it is impossible for Sartre to consider the relationship between man and the world without utilizing the concept of nothingness (Warnock 1970, p. 93). Sartre perceive man, as a conscious being, which is a 'being-for-itself' and differs from other unconscious objects or subjects, which are 'beings-in-themselves'. However consciousness when marked off from other conscious beings is the ability to consider the reality or confront the reality by thinking themselves as separate from other things. Such a consciousness which creates a void inside a human being is therefore referred to as the emptiness which divides man from considering himself 'beings-in-themselves'. In this context we can say that 'nothingness' suggested by Sartre is like space which though remains outside the conscious being, has no boundaries and constitutes the distance which divides him from this world. In case we perceive 'nothingness' as internal to the 'being-for-itself', it refers to the emptiness within, which aims to fill by man's own actions, his personal thoughts and his own created beliefs. It is this possession of 'emptiness' that despairs man when he finds himself in situations making it possible for a 'being-for-itself' to perceive the world and also to act in it, by determining his own course of action by reference to an imagined future. Such imagination escorts the man to what Sartre has referred to 'bad faith' and due to this, his freedom is subjected to an unrealized potential which is the main cause of despair for the man, because while hiding behind such bad faith, no man is able to escape from taking actions or making choices. Therefore he suffers when his expectation of 'bad faith' remains unfulfilled and there he feels emotionally downtrodden and forlorn. On the other hand if man considers 'being-in-itself' and never subjects to any bad faith, he feels himself emotionally free because

Monday, November 18, 2019

DISADVANTAGE OF HAVING HOMOSEXUALS IDENTIFY THEMSELVES IN THE MILITARY Research Paper - 1

DISADVANTAGE OF HAVING HOMOSEXUALS IDENTIFY THEMSELVES IN THE MILITARY - Research Paper Example This Presidential Memorandum .also authorized that any evaluations by the Secretary of Defense be an evaluation and implementation which is to be accomplished in a practical and realistic way, in accordance with the elevated standards of combat efficiency and unit cohesiveness that the United States Armed Forces must keep (Rand Corporation, 1993). Rands National Defense Institute evaluated an ample range of topics which are of interest to the subject of the disadvantages of homosexuals disclosing their sexual preferences in the military. Seven foreign countries were examined and recommendations on the subject was sought from the police and fire departments of six American municipalities. This was accomplished in order to learn from the experiences of other individuals in other organizations with regards to the influence of the disadvantages of individuals disclosing their homosexuality on the preparedness and cohesiveness of those units. Public opinion with regards to the disadvantage of homosexuals disclosing their sexual preferences was examined, inclusive of the perspectives of military personnel who were serving on active duty. Scholarly literature on the effects of homosexuals disclosing their sexual preferences was consulted and the related health implications were also examined.. A variety of legal and enforcement topi cs were examined in the research of the disadvantages of homosexuals disclosing their sexual preferences in the military was consulted (Rand Corporation, 1993). The conclusions of their research is the following: Implementation of these requirements as to the appropriate conduct of military personnel, regardless of perceived sexual preference by the administrators at every level of the command structure (Rand Corporation, 1993). This policy of equal treatment and non discrimination was to be concise .and

Friday, November 15, 2019

Novel Eu3+-doped Garnet-tpye Tellurate Red-emitting Phosphor

Novel Eu3+-doped Garnet-tpye Tellurate Red-emitting Phosphor A novel Eu3+-doped garnet-tpye tellurate red-emitting phosphor with high thermal stability and color purity Introduction The garnet-related family Li3Ln3Te2O12(Ln=Y, Pr, Nd, Sm-Lu) have been extensively studied as promising solid electrolytes for application in solid state rechargeable lithium-ion batteries for the last few decades [1-4]. In 2006, OCallaghan et al. developed garnet-type Li3Ln3Te2O12 (Ln = Y, Pr, Nd, Sm-Lu) to investigate the relationship between Li site occupation and Li ion conductivity [1]. The lattice constant increases with increasing Ln ionic radius in Li3Ln3Te2O12. These Li3Ln3Te2O12 garnets have exhibited a fairly low ionic conductivity of ∠¼10−5 S cm−1 at 600  °C with a high activation energy (>1 eV) [3]. In 2014, the crystal structures and conductivity data for the most of perspective Li-ion solid electrolytes based on garnet-type metal oxides have been recently reviewed by Thangadurai et al. [4]. Garnet host lattices are of considerable interest due to their wide applications as laser hosts and as phosphors for white light emitting diodes [5]. For example, trivalent rare earth doped Y3Al5O12 (YAG) is one of the widely used systems of compounds for solid state lighting applications. Meanwhile, some new garnet-type compound can be constructed based on the garnet structural model, such as the green-emitting Ca3Sc2Si3O12:Ce3+, the orange-emitting Lu2CaMg2(Si, Ge)3O12:Ce3+, and the green-emitting Ca2LaZr2Ga3O12:Ce3+phosphors [6]. Therefore, the development of phosphors based on garnet-type materials is of great interest. As an important activator, the europium ion is one of the most studied lanthanide activators because of its singular luminescence properties, exhibiting pure red emission transitions with a series of sharp lines arising from the excited state 5D0 to the lower energy state 7F0-6. Eu3+ ions exhibit pure magnetic and electric dipole transitions which make it a very s ensitive probe for the rare earth ion site structure/symmetry. 5D0→7F2 electric dipole (ED) transitions around 610 nm are highly hypersensitive, which is highly sensitive to the symmetry of the Eu3+ sites in the lattices; however, the magnetic dipole transitions (5D0→7F1) are not affected by the environment, and their emission intensities are often used as an internal standard [7]. However, luminescence properties of Eu3+-doped garnet-type Li3Gd3Te2O12 have not been studied yet. In this work, red emitting phosphors Li3Gd3(1-x)Eu3xTe2O12(x = 0.01-0.30) were synthesized by the conventional solid-state reaction. The structure, composition and photoluminescence properties of Li3Gd3Te2O12:Eu3+ phosphors were investigated. In addition, the luminescence quenching of Eu3+ doping concentration and CIE on the photoluminescence spectra were demonstrated in detail. 2. Experimental Procedure    The synthesis of Li3Gd3Te2O12 phosphors doped with Eu3+ ions was carried out via a high-temperature solid-state reaction method. Li2CO3 (99.99%), Gd2O3 (99.99%), TeO2 (99.9%), and Eu2O3 (99.99%) as raw materials, they were purchased from Sigma-Aldrich without further purification and thoroughly mixed in an agate mortar. The mixtures were sintered in air at 900 °C for 10 h. when the reaction was end at 900 °C, the products were cooled down to room temperature without cooling devices. Finally, white powers were obtained by grinding. The relevant reaction formulas are as follows: 3Li2CO3+3(1-x)Gd2O3 + 4TeO2 + 3xEu2O3 + 2O2 = 2Li3Gd3(1-x)Eu3xTe2O12+ 3CO2 The crystal structure of phosphors were characterized for phase formation by using powder X-ray diffraction (XRD) analysis with a Philips XPert MPD (Philips, Netherlands) with Cu KÃŽ ± radiation (ÃŽ » = 1.5418 Ã…). The diffraction patterns were scanned within angular range of 10-70ËÅ ¡(2ÃŽ ¸). The morphology and size of the phosphors were measured using a scanning electron microscope (SEM, JEOL JSM-6490). The photoluminescence (PL) and photoluminescence excitation (PLE) spectra of the samples were analyzed using a Hitachi F-4600 spectrophotometer at room temperature. The temperature-dependent PL spectra of the phosphor were recorded in air on an Edinburgh FLS 920 spectrometer equipped with a 450 W Xe lamp. Results and discussion Li3Gd3Te2O12 belongs to the cubic crystal system, space group of Iad (No.230), in the structure of Li3Gd3Te2O12, Gd3+ and Te6+ cations occupy the 8- and 6-fold sites, and Li+ ions are located exclusively in the tetrahedral (24d) sites, respectively. As shown in Fig. 1, this structure can be considered to be formed from two interpenetrating, body-centered lattices composed of edge-shared distorted [GdO8] cubes [8, 9]. One of these frameworks composed of Gd (black sphere) and O (red sphere) is shown in Fig.1(b) along with selected polyhedra to illustrate the linkages between the [GdO8] units. Tellurium in the [TeO6] polyhedra is accommodated in an octahedral site that shares edges with an edge-linked [GdO8] dimer.   Fig. 2 shows the observed, calculated, and patterns of the Li3Gd2.55Te2O12:0.15Eu3+phosphors, confirmed from Rietveld analysis using GSAS software. The final refinement converged with weighted profile of χ2 = 1.086, Rp = 24.4à ¯Ã‚ ¼Ã¢â‚¬ ¦, and Rwp = 33.9à ¯Ã‚ ¼Ã¢â‚¬ ¦ for Li3Gd2.55Te2O12:0.15Eu3+. It is clear that all the diffraction peaks of these samples are in good agreement with the pure Li3Gd3Te2O12 (JCPDS 22-0683) and no second phase can be found, indicating that each sample is purity phase and that the substitution of Gd3+ by Eu3+ do not significantly influence the crystal structure. Li3Gd3Te2O12 belongs to the cubic system, and the lattice parameters are calculated to be a = b = c = 12.41 Ã…, V = 1911.24 Ã…3, which are consistent with the literature [1]. As the similarity of valence and the ionic radii of Eu3+(r = 0.95 Ã…, CN = 8) is the closest to that of Gd3+(r = 0.94 Ã…, CN = 8), the doped Eu3+ is supposed to substitute for the Gd3+ sites [10].   SEM analysis was carried out to investigate the surface morphology and particle sizes of the synthesized phosphor powder. Fig. 3 shows the representative SEM images of two different concentrations of Li3Gd3Te2O12:xEu3+(a, x = 0.05; b, x = 0.20). It seemed as if these small spherical particles combined together to form big crystallites. The size of particles is found to be in micrometer dimension. Meanwhile, the result indicated that doping content of Eu3+ content in Li3Gd3Te2O12:xEu3+from 0.05 to 0.20 mol did not alter the particle size and agglomeration. The grain size of phosphors is important for their applications in commercial WLEDs. In general, for practical bepowdering applications, the phosphors with micron particles can feed well the commercial demand for WLEDs. Therefore, a long ball-milling step is required to break up the agglomerations and improve the quality of the phosphor powder. Figure 4 shows the excitation spectra of Li3Gd2.55Te2O12:0.15Eu3+ monitored at 613 nm emission (5D0→7F2) at room temperature. The broad band of 200-300 nm (No.1) centered at around 275 nm is called as charge transfer (CT) band which is ascribed to the charge-transfer state (CTS) transition of O2−→Eu3+ ions. The position of this band mightily relies on the host lattice. A sequence of sharp excitation bands(Nos.2-11)between 300 and 500 nm was attributable to the intra-configurational 4f-4f transitions of Eu3+ in the matrix, namely,7F0 to 5FJ, 5H6, 5H3, 5D4, 5L8, 5G3, 5G2, 5L6, 5D3, and 5D2at wavelengths300, 314, 321, 364, 368, 381, 386, 396, 419 and 466 nm respectively [11]. The strongest absorption band located at approximately 396 nm occurred from the 7F0→5L6 transition of Eu3+ ions. A suitable red-emitting ultraviolet light-emitting diode (UV-LED) phosphor should exhibit an absorption of around 400 nm (LED excitation wavelength). Obviously, the Li3Gd3Te2O1 2:Eu3+phosphor has a potential value for white lighting device. Upon 396 nm excitation, the PL emission spectrum of the Li3Gd3Te2O12:Eu3+phosphors was measured as presented in Fig. 5. Clearly, the PL emission spectrum was dominated by a strong red emission with a center of about 613 nm due to the 5D0 →7F2 transition. Meanwhile, there also existed some relatively weak excitation peaks at 570, 596, 655 and 709 nm which are attributed to the 4f-4f transitions of Eu3+ ions from the excited state of 5D0 to 7F0, 7F1, 7F3 and 7F4, respectively. Generally, the local symmetry of Eu3+ site in the crystal lattice can be mostly reflected by Eu3+ emission profile. When Eu3+ ion occupies a crystallographic site with inversion symmetry, its magnetic-dipole 5D0→7F1 orange emission is dominant, while the electric dipole 5D0 →7F2 red emission dominates when possessing the non-centrosymmetrical site [12]. Thus, the I0-2/I0-1 emission ratio can be used in lanthanide-based systems as a probe for the local surroundings of a cation. As shown in Fig . 5, in comparison with that of the 5D0→7F1transition, the emission intensity of the 5D0→7F2 transition was much stronger, and the I0-2/I0-1 ratio was about 4.84. They demonstrated that the Eu3+ ions occupied the low symmetry sites with non-inversion centers in Li3Gd3Te2O12 host lattice. This ratio value is larger in comparison with those of the other Eu3+-doped phosphors. This larger ratio is favorable to improve the red color purity. The intensity of luminescence in phosphors is usually affected by the variation in concentration of activators. Dependence of PL emission intensity of Li3Gd3Te2O12:Eu3+ phosphors on dopant concentration can be seen in Fig. 6. None of wavelength shift or peak was observed for a new site at high Eu3+ concentrations. The emission intensity of the phosphor initially increases up to 15 mol%. The maximum intensity is observed at 15 mol% and after this it starts decreasing. The decrease in the emission intensity is due to concentration quenching effect. The concentration quenching of luminescence is observed when the energy transfer from one activator to another. Blasse has pointed out that if the activator is introduced solely on Z ion sites, xc is the critical concentration, N is the number of Z ions in the unit cell and V is the volume of the unit cell, then there is on the average one activator ion per V/xcN [13]. The critical transfer distance (Rc) is approximately equal to twice the radius of a sphere with this volume: The critical transfer distance of the centerEu3+ in Li3Gd3Te2O12:Eu3+ phosphor by taking the appropriate values of V, N, and xc (1911.24 Ã…3, 8, and 0.15, respectively) is 14 Ã…. The intensity of multipolar interaction can be determined from the change in the emission intensity. The emission intensity is related to the emitting level which has the multipolar interaction. The emission intensity (I) per activator ion is given by the formula [14]: where χ is the activator concentration; Q is a constant of multipolar interaction and equals 3, 6, 8, or 10 for the nearest-neighbor ions, dipole-dipole, dipole-quadrupole or quadrupole-quadrupole interaction, respectively; and K and ÃŽ ² are constants under the same excitation condition for the given host crystal [14, 15]. Then we use this equation to fit the experimental results of the relationship between integrated emission intensity and Eu3+ concentration. The curve of lgI/x vs. lgx in Li3Gd3Te2O12: Eu3+ phosphor based on Fig. 6 is shown in Fig. 7. The figure clearly shows that the relation between lgI/x and lgx is approximately linear and the slope is about -1.0. The Q value calculated based on the linear fitting using Eq. (2) is 3.0. This finding indicates that the concentration quenching of the Eu3+-site emission centers is caused by the energy transfer around the nearest-neighbor ions in the Li3Gd3Te2O12:Eu3+ phosphor. The similar phenomenon has been reported in the Sr1. 7Zn0.3CeO4: Eu3+ phosphor [16]. Both the maintenance of the chromaticity and brightness of white light output are favored by a lower-temperature quenching in the solid-state lighting application. Figure 8 represents the temperature-dependent PL spectra of Li3Gd3Te2O12: Eu3+ excited at 396 nm from 300 K to 460 K. The PL intensity almost unchanged with increase of temperature from 300 K to 460 K. The temperature dependence of the integrated emission intensities normalized at the 300 K value. The sample remained at about 82% of the intensity measured at room temperature, even the sample was heated to 420 K (the temperature at which LEDs typically operate). The thermal quenching temperature T50, the temperature at the 50% emission intensity, was above 500 K for Li3Gd3Te2O12:Eu3+. The Eu3+-activated Li3Ba2Gd3(MoO4)8 red phosphor shows lower quenching temperature and only remain 60% of the room temperature emission intensity at 200  °C. The good thermal quenching performance is similar with K2Ba5Si12O30:Eu2+, BaTiF6:Mn 4+, Sr3Lu0.2(PO4)3:0.8Eu3+phosphor [18-20]. Furthermore, the emission wavelengths showed no shift with increasing temperature. The small decrease in the emission intensity and good color purity stability at higher temperature indicates that the phosphor Li3Gd3Te2O12:Eu3+ has good thermal stability and can serve a potential red emitting phosphor for white LEDs. In order to clarify the thermal quenching behavior and to calculate the activation energy, the Arrhenius equation is fitted to the thermal quenching data of Li3Gd3Te2O12:Eu3+ [21]: Where I0 means the initial intensity at room temperature, I(T) means the intensity at   temperature T, c is a constant, k is Boltzmanns constant (8.62 10−5eV/K), and Eais the activation energy for the thermal quenching process fitted with the thermal quenching data. The inset in Figure 9 plots ln[(I0/I)−1] versus 1/T for Li3Gd3Te2O12:Eu3+. Linear regression showed that the thermal activation energy Ea for quenching was calculated to be ~ 0.22 eV. The thermal quenching of the emission intensity of Eu3+-activated phosphors was due to the excited electrons easily jumping into the CTS band after absorbing thermal energy at high temperatures, which the probability of non-radiative transition may increase. Thus, the emission intensity of Eu3+-activated phosphors decreased with increased temperature [22, 23].    The emission spectra of Li3Gd3Te2O12:0.15Eu3+ and commercial Y2O3:Eu3+ excited at 396 nm were then compared in Fig. 10. Remarkably, the integral emission intensity of Li3Gd3Te2O12:0.15Eu3+ was 3.03 times than that of Y2O3:Eu3+. The CIE chromaticity coordinates of the phosphors were calculated to be (0.642, 0.332) for Li3Gd3Te2O12:0.15Eu3+ according to its PL spectra, which are shown in the CIE 1931 chromaticity diagram in the insets of Fig. 10. It was found that the CIE coordinates of the present red phosphor are more close to those of the NTSC standard CIE chromaticity coordinate values for red (0.67, 0.33) standard value, which is better than those of the commercial red phosphors Y2O3:Eu3+ (0.49, 0.32) [24] and Y2O2S:Eu3+ (0.65, 0.36) [25]. Furthermore, to better understand the red emission of the Eu3+-activated Li3Gd3Te2O12 phosphors, the color purity was calculated according to the following expression described by Fred Schubert [26]: where (x, y) denotes the CIE coordinate of the synthesized compounds, (xi, yi) presents the color coordinate of the white illumination and the (xd, yd) is the color coordinates of the dominant wavelength. The dominant wavelength point can be calculated from the intersection of the connecting line between the equal energy point and the sample point. The color purity of Li3Gd3Te2O12:0.15Eu3+ (0.642, 0.332) phosphors is determined to be around 92.6%. This indicates high color purity and excellent chromaticity coordinate characteristics. The inset image in Fig. 10 shows that strong red emission was observed with the naked eyes when Li3Gd3Te2O12:0.15Eu3+is under a 365 nm UV lamp. Conclusion A novel garnet-type red-emitting phosphor Li3Gd3Te2O12:Eu3+ was prepared by the convenient solid-state reaction. The excitation and emission spectra and the dependence of luminescence on temperature were studied. The excitation spectra indicate that this phosphor can be effectively excited by near-UV light, which matches the emission wavelength of near-UV-LED chips well. The phosphor shows intense red emission, which has a high quenching temperature and can keep a stable color purity with elevated temperature. The optimum dopant concentration of Eu3+ ions in Li3Gd3Te2O12:Eu3+ was around 15 mol%, and the critical transfer distance of Eu3+ was calculated to be 14 Ã…. The concentration quenching is probably caused by the energy transfer among the nearest-neighbor ions in the Li3Gd3Te2O12:Eu3+ phosphor. Because of its good excitation profile and stable luminescence properties at high temperature, Eu3+-doped Li3Gd3Te2O12 phosphors are a potential red phosphors for NUV chip-based WLEDs and display devices.

Wednesday, November 13, 2019

Same Sex Marriage Essay -- Ethical Issues, Lesbian or Gay Parents

Same sex marriage is already taboo, but same sex couples raising children is mostly not considered acceptable by the public because of the misconception that they are not qualified to bring up children in accordance with proper social values. The public is not certain if children will receive proper education about society and behavior to fit in as responsible members. However, several recent movements, such as Feminism and Post-modernism, argue about equal rights for everybody. Feminism is mainly concerned about the equality of men and women in society while Post-modernism is mainly concerned with ending all forms of discrimination in society. Feminism is actually a subdivision of Post-modernism because Post-modernism is against all discriminations while Feminism specializes in pointing out women's rights in the society and the equal status of women and men. Among other things, both ideologies re-evaluate the meaning of love and marriage in modern society. Besides the social movemen ts, several scientific research was made regarding children who grow up in same sex marriages. Children raised in a same sex marriage share the same core values with the society, maybe even higher because they never learned about sexual discrimination in their home, and the only reason why they are restrained is because of the public opinion on these situations. In accordance with scientific research, the American Psychological Association (APA) claims that there are should be no concerns with same sex marriages. It is not just a violation of privacy and an act of discrimination against other people, but there are also no scientific basis which prove that it contributes to an improper development of children. Fears about children of lesbian or gay p... ...ation because same sex marriage is something people are used to and they will retain their opinion that it is the only way to provide a person with a normal childhood, even though this marriage might not be happy or might not last. On the other hand, a child will feel better growing up with a same sex couple instead of growing up alone. The main things Post-modernism and Feminism are re-questioning in the modern society, love and marriage, are the most important things a child can look up to when growing up. If there is no love in a regular marriage, this marriage cannot provide a decent environment for a child's upbringing. However, if a same sex marriage provides a loving environment for the child, it should not be discriminated against, but rather encouraged to contribute to the harmonious development of a child without sexual or any other forms of prejudice.

Sunday, November 10, 2019

A Wonderful Life Essay

One of the most fundamental mission of our lives has been how can we secure our life from its very uncertainties. Each one of us wants to live a beautiful and joyful life but if we look around and find out, one fact comes out really strong and that is, one who is financially sound and secure is able to enjoy the sweet fruits of life and is able to live a wonderful life. Therefore, securing our lives through financial planning becomes the inner core on which our lives revolve and it is of utmost important if we want to lead a quality life. Saving money is of prime importance as virtually there is nothing tangible that we can have without the exchange of currency. Furthermore, saving gives us a way out from the uncertainties of life and gives us a chance to enjoy a quality and meaningful life. Saving money is one of those tasks that are so much easier said than done. There is more to it than spending less money. How much money will we save, where will we put it, and how can we make sure it stays there? Here is how to set realistic goals, keep our spending in check, and get the most for our money. First and foremost, saving money help to realize our big dreams. As we know, almost everybody set goals to achieve in their life but there are few of them who are really achieve it. For example, a successful person is the one who continually works to make his dreams become true. We can also be among the list of successful persons who are able to achieve their dreams shortly. We can have any dream, but what is important is how we are able to make them come true. We may have the dream of owning a big bungalow, a grand wedding or travelling around the world or something else. However, these dreams cannot be fulfilled in a day as they require a good amount of money to achieve it. Thus, a regular savings can give us the key of fulfilling our dreams in such a simplest way. Besides, saving money is one of the healthy habits that we can practice in our daily life. This means if we are able to inculcate in ourselves a habit of saving, it will pay a long way throughout our life. This is because saving teaches us to be self-disciplined in our life. As for me, just the only a self-disciplined person is able to live in an all-round beautiful and fulfilled life. If we waste our money today then how we will realize our materialistic dreams. In addition, saving also gives security in our life. Thus, it is a healthy habit that we can practise in order to save our money. Therefore, there may be some different reasons for us to save the money but it is crystal clear from the above discussion that saving is highly important for living a secured, happy, and quality life. We can surely realize the powers of money when we start saving. However, we have only one life to live but that one life should be filled with colours of fulfilment and this can only come with â€Å"Savings†. This is because only through savings we can fulfil our dreams, the aspirations of our family and so to the others. Therefore, what I want to say is let the money speak for us through regular savings and become capable of enjoying a long and beautiful life. Apart from that, we should also save money for our family responsibilities and for our personal aspirations. This means if you are not alone and have a family to support, then invariably you are required not only to take care of your own aspirations but also to carry out a lot of various tasks and responsibilities of your family at different stages of life. It may be your child’s birth or your dream of buying a luxury car. It may be also the desire to buy jewellery for your beloved wife or you have a plan to go out on a vacation with your family while travelling in all over the world. By saving money, we already have a saving for the plans. Besides, we could also need some money for the expenditure on our child’s higher education. In today’s world, money is very crucial. Without any saving, we cannot be able to give a good education for our children. From this situation, it is convinced that a good amount of money and saving is a must in such scenarios. Therefore, everyone should starts saving money as much as possible in order to lead a better life in the future. Without we realize, an unexpected and emergency expenditure expenses can come in many ways in one’s life. For example, a sudden situation like a sudden hospitalization, a job loss, an accident, a car breakdown or any other situation might be happen without any sign. Besides that, the financial crisis can also arise any time. Therefore, it is very good for us to have a saving for any such of emergency that can give the much needed and required help to overcome such crises in your life. As a result, our burden in living a life will be lessening. But the most important things is that we did not need or find dependent and search for the support from others, which may at times does not turn up when you require the most. Another importance of saving money is that it provides us with security. We always think that money in the bank will help us out during harsh times in life. Saving money is also a way of planning. Most people keep a certain goal in life when saving money. If one does not â€Å"save it for a rainy day† but instead decides to â€Å"live it up† and spend all their money than they are more likely to face financial difficulties in the future. In this way, people who spend more than save do not take the opportunity to plan. Last but not least, saving money give us a real independence in our life. This is because the real independence comes only with the financial independence by saving our money on a regular basis that will give us the power of living a life of freedom. Furthermore, by savings we can be â€Å"in the right place at the right time†. We will be able to take hold of any advantage that the life puts across to you. Eventually, we can make your opportunities into realities with enough saving that we have. It is proved that by saving money, you will get a lot of benefits for your own goodness. Therefore, I believe that by having enough money through savings it will gives us the chance to grab that life turning opportunity that come just for one time. Therefore, you could not deny that savings can help do all this in such an easy way. In a nutshell, everyone should always think that it is not only about how they earn their money but also about how they spend it. There is an old and common saying that tells us that it is easier to earn money than to spend it wisely. That is the reasons why we should budget yourself by thinking about how much we are willing to spend before we go out to buy something that is not necessary for you. Another good approach is that we need to never buy anything that we did not plan on buying no matter how good a deal we find. This is because it will help to save you from unnecessary expenditures. However, we should always assess what our needs are and buy accordingly. Therefore, do we have to watch our desires, but do not deprive ourselves of necessities. This is the fundamental reason why some people should start the habit of saving today.

Friday, November 8, 2019

Housewives Are More Responsible Mother Than Working Women Essay Example

Housewives Are More Responsible Mother Than Working Women Essay Example Housewives Are More Responsible Mother Than Working Women Paper Housewives Are More Responsible Mother Than Working Women Paper Housewives are more responsible mother than working women Yes because No because housewives give children the attention they need Psychologically,diet-wise and academically. Housewives can be both educated and uneducated but the fact that they spend more time with their children means that they put in a greater effort and since they are not preoccupied with their Job(read: cellphone); they pay the close attention needed to keep their children out of trouble. Think of housewives as inspectors in your home; they will make sure the foods on the table,children have done their chores/homework, will talk to the kids even when hey dont want; unlike fathers they can stroll into bedrooms at any time and check every nook-amp;-Corner so it is drug/cigarette/alcohol-free. A busy mother will be humming about worrying about the way she might lose the promotion to her professional nemesis ! Counter: Talking to your parents about paying bills and getting a promotion; makes older people feel useful and younger people(the children) feel secure that they have the family/fall-back option. That their parents can be relied on not feared; respected/ loved/kind/understanding rather than unhelpful and distant. Parents themselves feel hat children who talked to them about their problems can be trusted/leaned-on with their own. Thus [parents trust their children to be there for them in their time of need. This symbiosis throughout lifetimes is healthy and efficient for both parent/(s) and child/(children). People want to be relaxed all the time(At home AND at work) that is why all the research on work-stress is so important. The key to good health according to most research is having people around irrespective of whether they are tense or relaxed; Just having them around provides security/welfare. All this ttention can be suffocating. Children need space to grow. Traditionally housewives had many children; therefore each child had the room to grow individually and independently: Attention was divided. Now people have fewer children and mothers can be overly involved in their little ones lives. Making it difficult for children to develop useful skills of independence; required to ultimately stand on their own feet, make friends etc. When they grow up they will probably rely on their mothers to pay their bills, they will call mummy from work if they cant get that promotion! they will robably be inseparable from their mothers; causing stress to people. A housewife is usually busy tending to the house or doing the more practical Jobs of raising children, such as feeding them, rather than actually spending time with them and being loving/affectionate. If they come home from work, they will want to spend that time relaxing and being in a positive mood. usewives are more responsible mother than working women housewives are friends with their children Friends come and go ; family sticks but not always. Mothers(those who were with you best friends who wont cheat on you with your boyfriend; who wont be Jealous of our achievements and who will motivate you to chase your dreams with full fervor. Especially when they are not ambitious career women themselves. counter: career women generally set great examples for daughters but not sons unless their husbands have equally strong/stronger personalities. If the father is resentful of his wifes success/Job; and complains every time he is with the kids then both daughters and sons pay. Then again different people react different; high pressure can bring out the best results in some people and the worst in others. Its best that the mother ho knows best (for her kids) spends enough time with them to know what will work for each one. counter: Yes; housewives can/do lose their temper but not any more than the-emotionally-detached-ambitious-career-obsessed-father who doesnt wish to be disturbed at all times and orders the kids be taken away, put to sleep and/or fed all the time. Only a housewife can put with such a terrible caricature of a husband/father while a career-woman will probably do the same leaving children to their nannies and so forth. Working mothers take out their workplace stress on their children. They do not have time or energy for them. They are mothers in name only. Housewives only have relationships to interfere in; and mothers can be very competitive career-women or not. They can be Jealous of your youth/freedom/beauty/ intelligence/career/anything? nd mothers can expect you to nurture them or your siblings instead of going for selfish pursuits. And since they dont have their own careers housewives are at times; intent on inadvertently spoiling their daughters careers. Its like teachers whoVe failed in their subject of teaching; they could either help you thwart all the mistakes they made; making sure you succeed with all their ight or AND sadly this is what happens most of the time theyll bring you down harder than ever because they suffered. Career women using the same analogy can be like teachers who succeeded. Who wont only stop you from making mistakes , but teach you the tricks of the trade. The sneak-peaks,cheats and all the learning/ growing/success-aides theyve picked on their way up; high up. Even self-involved career women teach by example. Daughters want to develop the same work-ethic, get the same respect and tend to value achievement. Housewives work hard too with their domestic tasks, and are often overworked and in bad moods. The child is the first available target of this hostility, especially if they are underfoot/in the way of the work needing to be done. ounter to second counter: Housewives(especially socialites) are very capable of leaving/disposing tots to the nanny. ousewives are more responsible mother than working women working mothers are earning enough money to support their children At times; rather most of the time children of poor working mothers become too free/ independent ; getting involved in criminal activities and other immoral indulgences that they would no t get way with on a 24-hour house-mother watch. Children get neglected and therefore; self-pitying amp; spoiled. Many families will not earn enough money to properly support their children if the mother doesnt work, especially a single mother. Even if the father earns enough money for them to live on, the child will live more comfortably if the mother is earning a wage too. housewives daughters need good role models And whos to say a housewife cannot be a good role model? Housewives can be well-educated; good-looking and put-together. And many are. Running a home/family is no easy task and can be very fulfilling; if you do it right. I could not imagine a better role model than that of a present, loving, capable and devoted mother. Daughters need to know that motherhood is a choice and a huge responsibility. Being accountable for ones choices is a sign of dignity and maturity. Putting children on the backburning for personal desires is an injustice. That is why working moms feel bad about leaving their children. Deep down the truth hurts. Daughters need to know that women can be powerful and aspire to good careers, and that this doesnt mean they cant also have children. Their mother is the example hey will see the most and will learn to copy from an early age. housewives are more responsible mother than working women Adjustment results from exposure to other people. A housewife can have many house guests frequently frequenting her home. Children are therefore exposed to many people and have to learn to adjust/socialize in such an environment. Many offspring recite poems,sing songs and otherwise perform for these guests. However, a home with a housewife can be very lonely; while privacy is hard to come by. Some mothers treat children like nothing more than sounding boards. Where friends/family can walk away or fault them ; children have to listen at least until theyre teenagersAlternatively a home run by career woman can be full or empty too. A career woman could, out of the guilt of being a working mother; feel the need to smother her child every chance she gets; making sure the child is not surrounded by strangers. Leaving him/her very incapable of social development/ adjustment. Working mothers can overcompensate by being overprotective and somehow suffocating for their child/children. When a woman is working; her child has got to learn how to adjust with different eople and surroundings; but some kids cannot spend a minute without their moms. mamas boys or girls A woman can be educated and uneducated. She could be working before her marriage. All of this depends on her personality.

Wednesday, November 6, 2019

Various Aspects Relating to the Balanced Meal

Various Aspects Relating to the Balanced Meal Introduction Most people love to consume their favorite meals from time to time. However, there is the need to evaluate a meal in terms of its nutrients. It is advisable to take a meal that comprises of a balanced diet. Thus, an individual is expected to incorporate, protein, vitamins, carbohydrate and fiber in their diet.Advertising We will write a custom essay sample on Various Aspects Relating to the Balanced Meal specifically for you for only $16.05 $11/page Learn More One of the best meals that meet all the above requirements encompasses Ribeye steak, mashed potatoes, green beans, peach pie and Folgers coffee. Thus, a person can be confident of having consumed a balanced diet if they consume a meal encompassing the above foods. This write up highlights various aspects relating to the above foods. Methods of production Ribeye steaks can be locally obtained from Rock Springs, Wyoming. Purchases are done by making an order. Ribeye steak is produced by entr epreneurs who sell ready meat to the local outlets. Rearing of beef animals requires a farmer to have massive pieces of land so that there is a constant supply of animal feed. In some instance, overgrazing can cause degradation of the land. If animal waste is not managed properly during livestock operations, it can contribute to water contamination (Gauldie, 1981). Folgers coffee is grown on large farms, harvested at maturity and transferred to processing factories. The steps that are involved in its preparation include; fermentation, shelling and drying. It is then classified into; classical roasts, flavored coffee, instant coffee, home cafe and cappuccino. This coffee is also locally available. Green beans are grown for their flavor, flesh and sweet pods. Cultivation of the same is done in greenhouses. This ensures that the growing conditions are controlled to maximum yields. Furthermore, locally grown Green beans have a good taste compared to the imported ones. Mashed potatoes ob tained from the local market are inexpensive when compared to those obtained from other regions of the world (New cook book, 2005). This is because the cost of production and distribution is low. Therefore, it is preferable to obtained potatoes locally rather than importing the same.Advertising Looking for essay on health medicine? Let's see if we can help you! Get your first paper with 15% OFF Learn More Peach pie is a product that is prepared by incorporating peaches and wheat flour. The flour is prepared, and peaches incorporate into the dough. This is then followed by topping up and finally baking in an oven. Baking is done, and the product is removed from the oven once it turns golden. It is then allowed to cool before being sliced. Processing and packaging Ribeye steak is extremely flavorful and tender. Good quality Ribeye steak is prepared by grilling with pepper, salt and garlic powder. It is then processed by pan searing for two minutes on both side s in a skillet at high temperatures; this helps in locking juices that contribute to flavor. Beef obtained from the rib steak is grilled and boiled for seven minutes to produce remarkable quality Ribeye steak. The normal color of stored Ribeye should remain purplish-red. Processed Ribeye steak is vacuum packed using aluminum foils (North American Meat Processors Association, 2007). Green beans are stored inside plastic packages and placed in refrigerators but, they must be prepared and consumed within five days (North American Meat Processors Association, 2007). Alternatively, the processing of green beans can involve blanching, canning, and freeze storing. In most cases, green beans are prepared by boiling and stir-frying. Further, mashed potatoes are peeled and sliced prior to cooking using high temperature short time combinations. On the other hand, peach pie is a baked, cooled and sliced before being wrapped in plastic bags. Likewise, Folgers coffee is prepared by boiling water and mixing it with sugar and instant Folgers coffee. Substitutes Ribeye steaks can be substituted with cheese steaks. Substitutes for mashed potatoes include; cauliflower, turnips, rutabagas and celeriac. The most appropriate substitute to green beans is long beans. Long beans hold up heat well and retain crisps on the inside making them ideal in the preparation of stir-fries. The substitute for Folgers coffee can be other beverages such as chocolate and tea. Economic advantages and disadvantages of the meal The greatest economic advantage of Ribeye steak is that, it is served in smaller sizes than the average steak sold in restaurants and supermarkets. However, Ribeye steak has soaring cholesterol levels. Mashed potatoes are rich in dietary fiber and sodium.Advertising We will write a custom essay sample on Various Aspects Relating to the Balanced Meal specifically for you for only $16.05 $11/page Learn More Besides, they are rich sources of starches, prot eins and vitamins (Wilson, 2009). Green beans are good sources of calcium, potassium and dietary fiber. Additionally, they have high amounts of vitamin A. Ecological advantages and disadvantages Proper usage of unproductive land involves rearing beef animals. The remains of animals are used as manure in farms. There is the likelihood that soil fertility is improved through the use of animal manure. Growing of peaches, green bean, and Folgers coffee depletes soil nutrients. However, this can be improved by the use of nitrogenous fertilizers. Moreover, processing of the above product involves the production of wastes that pollute the environment. A positive attribute to this is the purification of gases by plants. Systems associated with production of Ribeye steaks leads to increased carbon dioxide cases. This leads to global warming. Besides, complaints concerning obesity have been raised as a result of meat products. Impact of food purchases on environment Increased agricultural act ivities contribute to climate change. Waste food in landfills contributes to about 2% of green house emissions. High concentrations of chemicals in landfills find their way to the surrounding water sources causing pollution (Harrison, Cheyney, Overstreet, Towns Stetzer, 2008). Lastly, food manufacturing is a serious emitter of greenhouse gases that cause environmental degradation all over the world. When land alteration and broad food structure are taken into account, the entire contribution of food possibly will be as high as 30%. This implies that the long-term consequences of climate change, food manufacturing and production must turn to be tough to climate and low-carbon sustainability. Change of choices with time Food purchasing power is influenced by the income levels of consumers. Production and marketing processes should be cost effective to reduce the cost on the ultimate consumer. Emerging concerns over fitness and health will also influence food choices in the future. On es ethnic and cultural background will dictate their food choices (North American Meat Processors Association, 2007).Advertising Looking for essay on health medicine? Let's see if we can help you! Get your first paper with 15% OFF Learn More Individuals are aware of the impact of some of the processes involving food processing. There is the likelihood that people will boycott products that pollute the surroundings. Therefore, people are cautions on the food that they consume. This has affected purchasing and consumption patterns of most consumers. People prefer foods that do not harm them and their environment. References Gauldie, R. (1981). Beyond the fields: Cesar Chavez, the UFW, and the struggle for  justice in the 21st century. Berkeley: University of California Press. Harrison, R., Cheyney, T., Overstreet, D., Towns, E. L., Stetzer, E. (2008). Spin-off  churches: How one church successfully plants another? Nashville, Tenn.: B H Academic. New cook book. (2005). Des Moines, Iowa: Better Homes and Gardens Books. North American Meat Processors Association. (2007). the meat buyers guide: Beef,  lamb, veal, pork, and poultry. Hoboken, N.J: Wiley. Wilson, P. (2009). Yesterdays mashed potatoes: The fabulous life o f a happy has-been. Indianapolis, IN: Dog Ear Publishing.

Monday, November 4, 2019

Capacitance (Timing Circuits) Essay Example | Topics and Well Written Essays - 500 words

Capacitance (Timing Circuits) - Essay Example For capacitance derived unit is useful for expressing the charge (unit of charge is Coulombs)that can be transferred to an object per unit of voltage ( unit of voltage is in Volts) and thus a unit which we got from this ratio is known as Farad. Each capacitor having two parallel plates and will have capacitance equal to  8.85 Ï F/m, times the area of one of the plates, divided by the distance between them. When sharing the charge applied to one capacitor with a second capacitor, charge is conserved, therefore Vf * (C1 + C2) = Vi * C1. When discharging a capacitor through a resistor, V(t) = V0 * e-t/RC. When charging a capacitor through a resistor, V(t) = Vf – Vf * e-t/RC (â€Å"Courseworkbank†). In timing circuits there are two possibilities either we are controlling the rate of response of the capacitor or controlling the rate of voltage across the capacitor. If a series combination of a resistor and capacitor are present such type of circuit is simplest timing circuit. The amount of time to charge the capacitor to 63% of the input voltage as well as it is equal to the resistance times the capacitance is known as time constant T=RC.Varying the values of resistance and capacitance ultimately results in time ranging from microseconds to weeks. The important characteristics of capacitor are: This timer circuit is similar to the 5 to 30 minute timer except that when switch S1 is closed, the on/off action of the circuit will continue indefinitely until S1 is opened again. A 7555 time and low leakage type capacitor for C1 must be used. The 6 way rotary switch S3 adds extra resistance in series to the timing chain with each rotation, minimum resistance point "a" maximum point "f". The 7555 is wired as an equal mark/space ratio oscillator, the timing resistor chain R1 to R6, being connected back to the output of the timer at pin 3.The output pulse duration is defined

Friday, November 1, 2019

Global Warming Research Paper Example | Topics and Well Written Essays - 3250 words

Global Warming - Research Paper Example As the paper stresses recent temperature readings worldwide indicate a rapid increase in the temperature of the earth’s surface witnessed during the past century. The information excludes potential causers of the rise in temperature such as the urban heat island effect. The data show a rapid warming trend, especially during the past 30 years. The surface temperature data rhyme with other evidence of warming, for example the shrinking mountain glaciers, evidence of the decreasing polar ice cover, and the increasing ocean temperatures. Extensive research has been done to answer the question as to whether the witnessed warming trend is usual or whether it is due to the 20th century breakdown, which comes with the â€Å"accumulation of excess green house gases† in the atmosphere of the earth. As the discussion explores global warming happens naturally because the climate continuously changes over time. As such, the earth’s rotation gradually increases the sunlight intensity as the earth rotates closer to the sun. The sun acts as the main source of energy to earth. The output of the sun’s energy is constant. However, even the smallest of changes over time leads to climatic changes. Other factors such as slow or fast changes in the orbit of the earth changes the normal distribution of the sun’s energy across the planet, which leads to long term fluctuations of climate such as ice ages. Therefore, scientist cannot say that the sun’s output causes global warming, especially because there has not been an increase in the sun’s output in the last 30 years.