Successfully Raise A Defence Of Necessity

Successfully Raise A Defence Of Necessity Necessity and Private Defence are closely linked therefore; many of the requirements of private defence are also requirements for necessity. The difference between these two grounds of justification is that private defence stems from and is directed at, an unlawful human attack while in necessity a person finds him/herself in a situation in which he/she must between two evils: either suffer personal harm or break the law. The act of defence in private defence is always directed at an unlawful human attack whereas; in cases of necessity it is directed at either the interests of another innocent party or a mere legal provision. (Snyman, 2008, p. 115) Necessity There must be an urgent and immediate threat to life which creates a situation in which the defendant reasonably believes that a fair response to that threat is to break the law. This reflects the distinction between the defenses of necessity and duress in that the former is pressure of circumstances arising naturally, whereas the latter is a threat from an entirely human agency that overpowers the will of the defendant. The subjective frame of mind of the person who is relying on necessity the courts will not consider this but rather whether the act of necessity was in accordance with the legal conviction of society. The courts will also weight the option of whether a reasonable would have acted in the same way as a person that claims to have acted in necessity. They are using the concept of the reasonable person to practically embody the legal convictions of society and not to determining negligence. (Joubert, 2001, p. 61) REQUIREMENTS TO SUCCESSFULLY RAISE A DEFENCE OF NECESSITY The author will no discuss five (5) requirements that must be met in order for a person to successfully raise a defence of necessity: A legal interest must be endangered The danger must have begun or be imminent The defensive act must be necessary to avert the danger The defensive act must be reasonable The endangered person must know he/she is acting in necessity A legal interest must be endangered The purpose of the specific conduct must be clearly to protect a legal interest. Although the law recognizes many interests the most obvious are a persons life, limb, personal safety and integrity. A person may act in a situation of necessity to protect property but cannot relay on necessity to protect his/her job. If a person is not able to perform his job without breaking the law he must find another way to earn a living. For example a person cannot operate an illegal shebeen and claim it is to sustain his family when apprehended. The person must rather apply legally for a shebeens license. A person may also act in necessity in defence of some else. (S v Pretorius, 1975) The danger must have begun or be imminent When danger has already passed or will possibly occur in the distant feature a person cannot rely on necessity. Therefore, the danger must already have begun or the situation must be immediately threatening. In the trail Regina v. Dudley Stephens four stranded sailors were adrift in a small boat without supplies. The three strongest decided to eat the fourth, a seventeen (17) year old cabin boy to save themselves. There was some degree of necessity arising from the threat of starvation, even though the cabin boy would almost certainly have died of natural causes the sailors killed the boy intentionally and the court ruled that cannibalizing the boy was not urgently necessary and found them guilty of murder. (Regina v. Dudley Stephens, 1884) The defensive act must be necessary to avert the danger When a person relies on necessity the action taken should have to avert the danger. When there is less drastic measure to avert the danger a person a person should take this option. If it was not taken a person cannot rely on necessity. For instance when a man are awake by a noise in the middle of the night and found a person at his fridge busy eating food and killed the person by shooting him he thus cannot relay on necessity. If there is a possibility that a person can flee from the immediate or imminent danger he should do so. (S v Pretorius, 1975). The danger does not take the form of an unlawful attack and removing oneself from the danger in most cases of necessity. The defensive act must be reasonable A person must act reasonable if he wants to rely on necessity as ground of justification. The interest that is being protected must not be disproportionate of the defence act. Not more harm than is necessary to avert the attack must be inflicted by the person who wants to rely on necessity. According to Snyman this proportionality requirement is sometimes explained by requiring that the protected interest should be of greater value than the interest that is infringed upon. (Snyman, 2008, p. 119). The protected and infringed interests are a totally different nature, but if the infringed interest is a legal provision only, the defence of necessity would most probably succeed. For example a correctional exceeding the speed limit because he is rushing to the Prison where inmates are in the process of escaping, he will most probably be allowed to justify his actions by relying on necessity as a defence, since he infringed a legal provision only. The endangered person must know he/she is acting in necessity If a person is conscious of the fact that an emergency exists and knowingly acted in necessity than he can rely on necessity as a defence. A person cannot thus rely on necessity as a ground of justification if he throws a brick through a window in an attempt to break into a house but his action saves the occupants lives who are sleeping in a room filled with poisonous gas. PRIVATE DEFENCE The onus is on the state to prove beyond reasonable doubt that the accused action cannot be justified, if private defence is raised as a ground of justification. Private defence involves a person who takes the law into his own hands. Therefore, it is a drastic measure that should not be used for corrective purposes. Snyman alleged that this ground of justification has no history, but exist from the beginning of time. (Snyman, 2008, p. 103). Every person has a right to defend himself against an unlawful attack a right that is recognised in section 51 of the Charter of the United Nations. The two theories for the existence of private defence are protection theory, which emphasises each persons right to defend oneself or another against an unlawful attack whereas in upholding-of justice theory is where people acting in private defence perform acts assist in upholding the legal order. (Snyman, Criminal Law, 2004, p. 178). It is the primary duty of the state to protect the life and property of individuals but no state no matter how big its recourses can afford it. Therefore, this right has been given by the state to every citizen to take the law into his own hands for their safety. REQUIREMENTS TO SUCCESSFULLY RELIANCE ON PRIVATE DEFENCE The requirements of private defence can be divided into two groups for the purpose of classification namely: the requirements with which the attack must comply and the requirements with which the defence must comply. Requirements of the attack It must be unlawful A legal interest deserves protection. It must be imminent, but not yet completed The attack must be unlawful When the attack on a person is unlawful only than can a defender rely on private defence. A suspect who was lawfully arrested by a police official cannot rely on private defence in resisting the arrest. On the other hand, when a police official exceeds his powers by arresting a person he is not allowed to arrest the person may resist and can rely on private defence to justify his resistance. A legal interest deserves protection. Normally a person acts in private defence to protect his life, limb, bodily integrity and property. These are not the only interest worth of protection as the courts also recognized a persons right to defend personal freedom, sexual integrity, self-respect and chastity. To protect the interest of other persons is also an act of private defence but than the third party should want the defender to act on his behalf. However, the defender will not be able to rely on private defence if the victim does not want the help of the defender. (Joubert, 2001, p. 52) The attack must be imminent, but not yet completed If it is clear that an attack is about to happen than a person can rely on private defence. The defender doesnt have to wait for the attacker to attack first if the attack is imminent he can avert the attack by defending himself before the attack actually arise. But if the attack have been already completed the defender no longer defend him but get even. In the case of S v Moghlwane it was find that if the attack formed part of one and the same immediate and continued act of resistance, the defender can rely on private defence even if he left the scene temporarily. (S v Mogohlwane, 1982) The defence requirements Before private defence can succeed the defensive action have to comply with certain standards. The defence must be directed at the attacker It must be necessary It must be reasonable The defence must be directed at the attacker When the defence is directed at anyone else than private defence as a ground of justification will not succeed therefore, it may only be directed at the attacker. (Snyman, Criminal Law, 2004) The defence must be necessary If there is another way that the attack can be averted in a less serious way than that option should be used. The law must not be taken into their own hands if the defender can rely on another remedy. Therefore, the defence should be absolutely necessary in order to protect the interest threatened. The question arises than should a person rather flee an attack than resort to private defence? But than once there is a duty to flee it will imply that justice will have to give up to injustice. Therefore, it is not expected of a police official on duty to flee if he is being attacked while lawfully performing his duties. The defence must be reasonable There should be a balance between the attack and the defence. The defence act may not be more harmful than necessary to ward of the attack. Therefore, it would be unreasonable to kill a person who attempts to steal bread. Proportionality also plays a very important role in determining whether the defence was reasonable or not. The proportionality requirement will be met if the defence act is reasonably proportionate to the attack. The right of private defence is a good weapon in the hand of citizens to defend themselves but it is not revenge rather towards the threat and imminent danger of an attack. The courts find it difficult whether this right had been exercised in good faith or not. Conclusion It can be said that the confusion arise between Necessity and private defence are that they are closely related to each other. The difference are than is that private defence is an act of defence directed at an unlawful human attack while necessity is directed at either the interests of another innocent party or a simple legal provision.

Effect of Gold Nanoparticles on Bilharziasis

Effect of Gold Nanoparticles on Bilharziasis Abstract Gold nanoparticles (AuNPs) gained a great attention in biomedical researches and become more applicable in nanomedicine in recent years because they have distinctive physicochemical properties. The current study was planned to assess the effect of the AuNPs with three doses levels on genes expressions, histology and oxidative stress status of Schistosoma mansoni infected mice liver. Inoculation of mice with 100 ÃŽÂ ¼l AuNPs at different doses (0.25, 0.5 and 1 mg/kg mice body weight) twice per week on day 46 and day 49 post infection reduced the total worm burden. Meanwhile, it reduced egg load in the liver and reduce the granuloma size. Also, AuNPs were able to significantly decrease the activities of malondialdhyde and nitric oxide as compared to infected untreated group. However, they increased the level of glutathione as compared toinfected untreated group. Concomitantly, AuNPs ameliorate the inflammatory response through decreasing the mRNA expression of IL-1ß, IL-6, TNFʽ ±, IFNÃŽÂ ³, and iNOS. In consistence with molecular, histopathological and biochemical data, AuNPs could ameliorate the infection induced damage in the liver of mice .Our results indicated that, AuNPs are effective anti-schistosomal and anti-oxidantagent.to confirm the role of nanogold as an antischistosomal agent and its mechanism of action, more studies are required to be done in the future. Keywords: Nanogold, Schistosoma mansoni, liver, gene expressions, histopathology, oxidative stress, mice. Introduction Bilharziasis is one of the most common parasitic diseases, which mostly affect the liver causing granuloma formation and hepatic fibrosis. Since, severe morbidity can result of schistosomal infection; the disease is still an important helminthic infection. Schistosomasis excessively affects people who have limited access to potable water and sanitation lived in the tropics and subtropics, approximately 240 million people infected with over 700 million people at risk of getting infected.1 Praziquantel (PZQ) is the known effective anti-schistosomal drug but the reinfection occurs rapidly after massive drug administration, thus, an efficient therapy used is the optimal way, especially in Schistosoma mansoni endemic areas. From a long time, gold nanoparticles (AuNPs) was have been used for drug delivery into cells.2,3,4Moreover, AuNPs have a strong potential role in cancer treatment and apoptosisinduction.5Accumulation of nanosystems at the targeted site I soften higher than normal drugs and usually leads to reduced systemic toxicity. However, chrysotherapy; gold was used in some diseases treatment smallpox, skin ulcers, syphilis and measles in ancient cultures in Egypt, India and China.2 Gold complexes showed potential antileishmanial and antimalarial activity, which have interesting role against Leishmania promastigotes in culture medium, becoming promising for using as band-aids to treat skin lesions. In addition, the effects of AuNPs as larvicidal for a mosquito vector of malaria have been reported. Thus, the impact of researches on gold for human tropical diseases therapy is considerable.6 The recent interest in using AuNPs in medicine has altered the methods of diagnosis and treatment.2For example, employing AuNPs in PCR has optimized the specificity of this diagnostic method.7Also some researchers have took advantage of AuNPsin transferring drugs into the biological cells, which provided a good basic for nuclear targeted delivery.8 Additional in vivo investigations are wished for the antihelminthic efficacy of AuNPs.9 Therefore, the present work aims to determine the cure rate of three doses of AuNPs against hepatic injury induced by schistosomasis in CD-1 mice . Materials and methods Gold nanoparticles (AuNPs) AuNPs have been prepared by chemical reduction method as reported by Turkevich10. A solution of HAuCl4 has been used as Au3+ ions precursor. Sodium citrate has been used as both of mild reducing and stabilizing agent. The color of the solution slowly turned into faint pink color, indicating the reduction of the Au3+ ions to Au nanoparticles. The fabrication of AuNPs were performed with the colloidal reduction process of chloroauric acid (HAuCl4.3H2O) with salt of trisodium citrate (N3C6H5O7) purchased from Aldrich (99% pure) Chemical Co. Ltd and used without further purification. In a typical experiment: 2 mM of HAuCl4.3H2O was dissolved in 100 mL of double distilled water. To this solution, 1% N3C6H5O7 (~3 mM) was mixed. The pH of this solution was measured via pH meter (Cole parmer U.SA.), which was reached to 7.88. The obtained pinkish colored solution was stirred vigorously and refluxed the solution at boiling temperature for 15-20 min. pinkish color was changed to deep red color ed solution of AuNPs. The obtained colloidal solution was stored for the further morphological and other elemental analysis. Characterization Size and morphology of AuNPs were done by using transmission electron microscopy (TEM) equipped with high resolution transmission electron microscopy (HR-TEM). Samples for TEM were prepared using the colloidal solution of nanoparticles. The colloidal sample solution was sonicated for 10 min in a bath sonicator before the observation and dipped in carbon coated copper grid (400 mesh) and dried at room temperature for the morphological analysis.A TEM picture was taken by a JOEL JEM 2000 EX 200 microscope at 200kv. Animals Sixty male CD-1 mice weighing 18-20 g were used in all experiments. The animals were obtained from a closed random bred colony at the Schistosome Biological Supply Center (SBSC) at Theodor Bilharz Research Institute, Giza, Egypt. Animals were housed in polycarbonate boxes with steel-wire tops (not more than six animals per cage) and bedded with wood shavings. Ambient temperature was controlled at 22  ± 3  °C with a relative humidity of 50 ± 15% and a 12-h light/dark photoperiod. Food and water were provided ad libitum. This study was conducted in accordance with legal ethical guidelines of the Medical Ethics Committee of the Theodor Bilharz Research Institute (TBRI), Giza, Egypt (Approval No. 4018/2011). Mice Infection S. mansoni cercariae (Egyptian strain) were obtained from infected intermediate host snails (Biomphalaria alexandrina) maintained at the SBSC. Mice were infected subcutaneously with freshly shed 100 ± 10 cercariae/mouse according to Liang et al.11method. Experimental design Animals were divided into six groups of ten mice each. Group I served as a control (non-infected); the animals were received saline (100 ÃŽÂ ¼l saline water/mouse) by intraperitoneal (ip) injection for 10 days. Group II and Groups III, IV, V and VI were infected with 100 ±10 S. mansoni cercariae. The animals of groups III, IV and V were intrapretonially inoculated with 100 ÃŽÂ ¼l AuNPs at different doses (0.25, 0.5 and 1 mg/kg mice body weight) twice per week on day 46 and day 49 post infection respectively. Finally, infected animals of Group VI were orally administered 100  µl of PZQ (600 mg/kg mice body weight) on day 46 post infection at an interval of 24 h for 2 days.12 Study of parasitological criteria Immediately after mice killed by cervical decapitation, hepatic and portomesenteric vessels were perfuse for worms recovery and subsequent counting.13 After perfusion, a piece of liver was used for the determination of the number of ova in liver and the percentage change in egg density was determined. The percentage of eggs at various developmental stages was examined in three samples from each mouse and the mean number of eggs at each stage/animal was determined.14 Sample preparation After dissection, the liver of all groups were immediately removed and divided into three parts, the first part for RNA extraction, the second one for histopathological studies and the third part was homogenized (10% w/v) in ice-cold 0.1 M Tris-HCl buffer (pH 7.4). The homogenate was centrifuged at 2000 ÃÆ'-g for 15 min. at 4  °C and the resultant supernatant was used for biochemical analysis. Histopathological investigations and granuloma size Tissue samples of the liver of all groups were immediately fixed after animal dissection in 10% neutral buffered formalin dehydrated and processed for paraffin sectioning. Sections were then deparaffinized, stained with hematoxylin and eosin stains. To assess the size of tissue granuloma, the mean diameter (ÃŽÂ ¼m) was measured. For each group, 30 granulomas were chosen from different hematoxylin-eosin stained liver sections from different mice. Assessment of oxidative stress markers Estimation of the reduced glutathione (GSH) level GSH level in liver was determined by the methods of Ellman.15 The method based on the reduction of Ellmans reagent with GSH to produce a yellow compound; the reduced chromogen directly proportional to GSH concentration and its absorbance can be measured at 405 nm. Determination of thiobarbituric acid reactive substances Thiobarbituric acid reactive substances (TBARS) were assayed through colorimetric tests of the liver homogenates according to the method of Ohkawa et al.16 In this method, TBARS was determined by using 1 ml of trichloroacetic acid 10% and 1 ml of thiobarbituric acid 0.67% which were then heated together in a boiling water bath for 30 min. TBARS which react with the amount of malondialdehyde found in liver homogenate to give a red color were then measured at 535 nm. Determination of nitric oxide level Nitric oxide (NO) level was assayed colorimetrically in liver homogenate according to the method of Green et al.17 The nitrite/nitrate level was determined where in an acid medium and in the presence of nitrite the formed nitrous acid diazotisesulphanilamide is coupled with N-(1-naphthyl) ethylenediamine. The resulting azo dye has a bright reddish-purple color which can be measured at 540 nm. Quantitative PCR Tissues frozen at -80oC were thoroughly grounded with a mortar under liquid nitrogen and total RNA was isolated with Trizol (Sigma-Aldrich). Quality and integrity of RNA were determined using the Agilent RNA 6000 Nano Kit on the Agilent 2100 Bioanalyzer (Agilent Technologies). RNA was quantified by measuring A260nm on the ND-1000 Spectrophotometer (NanoDrop Technologies).18 Real time PCR was performed as detailed previously.19, 20 In brief, total RNA freed from DNA using the DNA free kit (Applied Biosystem, Darmstadt, Germany) was used to synthesize cDNA using QuantiTectTM Reverse QuantiTectTM SYBR ® Green PCR kit (Qiagen) was applied for amplifications in the ABI Prism ® 7500HT Sequence Detection System (AppliedBiosystems, Darmstadt, Germany) with gene-specific QuantiTectTM primers delivered by Qiagen (Hilden, Germany). We investigated the genes encoding the mRNAs for the following proteins: interleukin-1ÃŽÂ ² (IL-1ÃŽÂ ²), tumor necrosis factor alpha (TNFÃŽÂ ± ), interferone-à ¯Ã‚ Ã‚ § (IFNà ¯Ã‚ Ã‚ §), and inducible nitric oxide synthase (iNOS). PCR reactions were performed and evaluated as detailed elsewhere.18 Statistical analysis The obtained data were presented as means  ± standard error. One-way ANOVA was carried out, and the statistical comparisons among the groups were performed with Duncans test using a statistical package program (SPSS version 17.0). Pà ¢Ã¢â‚¬ °Ã‚ ¤0.05 was considered as significant for all statistical analysis in this study. Results Morphological analysis of colloidal AuNPs The structural morphology and crystalline character of AuNPs were examined via transmission electron microscopy (TEM) equipped with high resolution transmission electron microscopy (HR-TEM). The obtained images shows the corresponding TEM results, which are shown in figure (1), the low magnified image (Fig. 1A) shows that, AuNPs are spherical in shape within the range of 10-15 nm in diameter. From the observation, its depicted that all the NPs are in definite spherical shape with rough surface and free from agglomeration behavior. Another obtained image represents the high resolution TEM (HR-TEM) image of AuNPs (figure 1B), which shows the lattice difference fringes between two adjacent planes are about 0.235 nm. The obtained lattice difference clearly corresponds to the lattice constant of face centered cubic (FCC) of AuNPs and are analogues with the previously reported information.21, 22 The crystal lattice fringes of HRTEM observation (Fig. 1B), again shows a confirmation of good crystalline nature of synthesized AuNPs and it is consistent with the low magnified image of AuNPs. 21, 22 AuNPs treatment induced a significant reduction in hepatic worm burden at all examined doses (0.25, 0.5 and1 mg/kg) as compared to infected group. The worm burden reduction rate was approximately, 32%, 49% and 64%, respectively (Table 1). Similarly, figure 2 shows that, the three dose levels of AuNPs caused a highly significant reduction on egg density in liver tissues of infected mice, and the highest reduction (69.8 %) was recorded at 1mg AuNPs dose level . Table 2 and figure 3 show the alternation on the liver histology from S. mansoni infected animals, compared with that from control animals. Figure 3A displays a histological section of liver from a control mouse. The center-lobe vein has normal morphological characteristics while figure 3B shows a histological section of liver after 56 days of S. mansoni infection in mice. Cellular alteration was verified on liver. There are leukocyte aggregations near blood vessels and evident vascular congestion. Histological investigation of hepatic tissue sections reveals that S. mansoni infection caused a severe inflammatory response of the liver, as indicated by inflammatory cellular infiltration as well as cytoplasmic vacuolation and degeneration of hepatocytes. In addition, the hepatic sinusoids were dilated and apparently contained more Kupffer cells. Treated livers of S. mansoni infected mice with the three dose levels (0.25, 0.5 and 1 mg/kg) of AuNPs as shown in figures 3C, 3D and 3E, resp ectively appeared with moderate inflammatory cellular infiltration. Figure4 showed that, the granuloma size in hepatic tissue showed a marked and a significant reduction in the granuloma diameter at Pas a result of AuNPs treatment to schistosome infected mice at all investigated doses (0.25, 0.5 and 1 mg/kg) as compared to untreated schistosome infected mice. Likewise, PZQ gavage induced a significant decrease in hepatic granuloma size infected of S. mansoni versus infected group. Schistosomiasis induced a significant elevation in hepatic levels of MDA and NO (table 3). In the same manner, injection of 3 different doses of AuNPs and PZQ to infected mice increased the levels of MDA and NO significantly as compared to non-infected group. Oppositely, a significant reduction was observed in hepatic MDA and NO levels as a result of AuNPs (0.25, 0.5 and 1 mg/kg) and PZQ injection versus infected group. Finally, GSH which involved in the down-regulation of substances formed during oxidative stress has been determined (Table 3). It was striking that GSH was significantly down-regulated by S. mansoni infection but that this effect was largely ameliorated by AuNPs treatment. Moreover, the S. mansoni infected mice revealed a significant up-regulation in mRNA of IL-1ÃŽÂ ², IL-6, TNFÃŽÂ ±, IFNÃŽÂ ³ and iNOs in hepatic tissue; likewise, injection of different doses of AuNPs and PZQ induced significant up-regulation versus control group. On the other hand, treatment with AuNPs as well as, PZQ to infected mice decreased the expression of IL-1ÃŽÂ ², IL-6, TNFÃŽÂ ±, IFNÃŽÂ ³ and iNOs-mRNA significantly as compared to infected group (Fig. 5). 4. Discussion Newly in several fields of nanomedicine; AuNPs have been actively used for diagnostic and therapeutic applications. It has been debated that nanoparticles of gold could be used in nearly all medical purposes.23 Abraham and Himmel24proved the successful usage of colloidal gold in rheumatoid arthritispatients. In addition, AuNPs caused cestode paralysis, which is followed by death; the authors attributed to alterations in cestode enzymatic activity of the parasite.9 Our results revealed that schistosomiasis caused marked and significant histopathological impairments in liver sections, and granulomatous inflammation was recorded. Ameret al.25 reported that S. mansoni induced granulomas which were characterized by concentric fibrosis Ù†¡Ãƒâ„¢Ã¢â‚¬ ° the trapped eggs surrounded by many fibroblasts. In addition, Toussonet al.26observed main histopathological injuries in schistosomiasis mansoni such as granulomas, diffuse infiltration of inflammatory cells eosinophils and small mononuclear cells and fibrosis of portal areas and interlobular septa. In the same manner, El- Banhawey et al. 27 cleared that schistosomiasis causes necrotic changes in the liver tissues. On contrary, our treatment with different doses of AuNPs appeared moderate inflammatory cellular infiltration, decreased the granuloma diameter. Moreover, AuNPs reduced the hepatic worm burden as compared the infected group. Dkhilet al.28 deduced that gold nanoparticles treatment to infected schistosome mice improved the histological disturbances of infected brain mice. Schistosomiasis mansoni imbalanced the hepatocellular antioxidant system and liberated the free radicals which are evidenced by decrement in GSH level and increased levels of both nitrite/nitrate and MDA in hepatic tissue. Meanwhile, AuNPs increased hepatic GSH level and decreased the levels of nitrite/nitrate and MDA. It was reported that, schistosomiasis disturbed the levels of enzymatic and non-enzymatic antioxidants which impaired liver GSH content of mice and decreased hepatic antioxidant capacity inducing lipid peroxides generation which may act a main role in the pathology associated with bilharziasis.25, 29 Furthermore, S. mansoni caused oxidative stress in different mice organs such as brain. Neuroschistosomiasis induced reduction of GSH level and increased nitrite/nitrate and MDA levels. Otherwise, gold nanoparticles (0.25, 0.5 and 1 mg/kg) injection to schistosome infected mice ameliorated GSH level and reduced levels of nitrite/nitrate and MDA in brain.28 In the present study, AuNPs injection (0.25, 0.5 and 1 mg/kg) to schistosome infected mice showed a significant down-regulation of IL-1ÃŽÂ ², IL-6, TNFÃŽÂ ±, IFNÃŽÂ ³and iNOs-mRNA expressions in hepatic tissue versus infected mice. IL-1 and TNF-ÃŽÂ ± are the major pro-inflammatory cytokine, they considered as alarm cytokines which secreted by macrophages. IL-1 plays a role in initiation and propagation of the inflammation by stimulating the expression of adhesion molecules on endothelial cells and leukocytes. In addition, TNF-ÃŽÂ ± may aggravate fibrosis and ameliorate the granulomatous reaction results from presence of schistosome eggs. So, in mice lacking of IL-1ÃŽÂ ² gene, characterized by delayed disease development and declined systemic inflammatory responses.30, 31 Moreover, lower expression of IL-6 and IL-1ÃŽÂ ² (pro-inflammatory cytokines) cause a down modulation of granulomatous inflammation and hepatocyte necrosis.32Also, Macrophages could be activate to produce NO and other inflammatory mediators by IFNÃŽÂ ³ is which considered as an important inducer of iNOs. In addition, Abdallahi et al.33detectediNOs mRNA in the liver at the onset of parasite egg laying; the authors cleared that the levels then increased as the eggs accumulated liver.34 However, Mwatha et al.35 reported that increased TNFÃŽÂ ³ is correlated with the development of severe hepatosplenic disease. Khan et al.36 concluded that gold nanoparticles (50 nm) showed a normal level of IL-6 gene expression in hepatic tissue of rat on day 5 of injection meanwhile, IL-1ÃŽÂ ², TNFÃŽÂ ± m-RNA expression was down regulated significantly on day 5. Moreover, nanoparticles of gold have no cytotoxic effect as they decrease the production of reactive oxygen species and do not stimulate secretion of proinflammatory cytokines (TNFà °Ã‚ Ã¢â‚¬ ºÃ‚ ¼and IL1-à °Ã‚ Ã¢â‚¬ ºÃ‚ ½) making them suitable candidates for nanomedicine.37, 38Gold nanoparticles are not induced apoptosis, moreover, not activated gene expression related to oxidative stress and inflammatory response (TNFà °Ã‚ Ã¢â‚¬ ºÃ‚ ¼) while their low reactivity with biomolecules and cells provides a promising medical platform.39 Conclusion Collectively, our investigations suggest that the way in which AuNPs exert their ameliorating effects on Schistosomiasis mansoni promoted oxidative stress may be attributed to its ability to scavenging free radicals , and that this action could find a clinical use in the treatment of hepatic dysfunction in schistosomiasis. Additional studies are still necessary, however, with a view to clarify the exact mechanism of this modulatory effect, and to examine its potential therapeutic effects in more detail.

Njoyable Workouts :: essays research papers

Enjoyable Fitness Workouts   Ã‚  Ã‚  Ã‚  Ã‚   In a recent article found in Women’s Sports & Fitness, there was a lengthy display of outdoor and indoor fitness exercises nation wide that were actually enjoyable. The first of these energizing activities is called Bikram Yoga. Bikram Yoga uses the technique of heat to maximize its effects. Taking place in a 107-degree studio the participants work on their yoga postures (the tree to name one), along with trying out many types of tension-relieving stretches to enhance flexibility. Such strong levels of heat are used because the hotter one is, the more pliable their muscles will become. Another type of excercise included is called the Denver winter Sports Conditioning. This includes the participants wearing/carrying weights and bands as they make their ways up the mountain. This technique is good for those who enjoy the act of mountain climbing and to improve their strength and mobility for future more difficult climbs. In Chicago there is the Athletic Total Conditioning group. This is a team taught group that is packed with military-style drills including things like running in small squares, throwing medicine balls and jumping over low hurdles. The class cultivates coordination, endurance, and strength. On the other side of the country there is the New York Urban Rebounding group. This class is for those sick of the usual workout scene. This class includes doing jumping lacks, kicks and tuck jumps on the trampoline, which all do wonders for the quads, calves, and abs. Rebounding is working against gravity and helps to detox the body by flushing out the wastes. In Washington, D.C. boxing is used to not only work out the body, but to de-stress also. These 90-minute are broken down into sections. The first section is devoted to the basic things like throwing punches, ducking imaginary blows, and doing some fancy footwork. Then 30-minutes on the punching bag with a partner, and finally ab work outs on the floor. In Atlanta there is a group called the Atlanta Trekkers. This group goes through an hour long treadmill class. It’s focus is on intense hill-training where the treadmills are elevated to a 15 percent incline. This group is good for those interested in prepping for springtime hiking. Finally, for a workout a little closer to home there is the Boston Kickboxing group. This high intensity hour is a great way to vent your anger as well as improve your fitness. This workout consists of jumping rope, fast sit-ups, pushups, lunges, and squats. Then it moves over to punching and kicking your partner (with the gloves on).

My Antonia Essay: The Character of Lena Lingard -- My Antonia Essays

The Character of Lena Lingard in My Antonia  Ã‚  Ã‚        Ã‚  Ã‚  Ã‚  Ã‚   Lena Lingard is the best example of a non-domestic central character which appears amidst the domesticity of My à ntonia. Often the sections which feature Lena instead of à ntonia are seen as confusing divergences from the plot line of a novel that purports to be about the woman named in the title. However, since Lena appears in the novel almost as often as à ntonia, and more often than any other character except Jim, she is a central character. Lena is a working woman who refuses to accept the constraints society places upon her. Even when society predicts that by becoming a dressmaker instead of marrying she will fail and become a "loose" woman, she disrupts their expectations and succeeds.    The first image of Lena in the novel is as newly arrived, pseudo-sophisticated country girl who has come to town to learn the trade of dressmaking. However, from the beginning of our knowledge of Lena she is anti-domestic. Lena recognizes that marriage is difficult-- she is never caught up in the "idea" of romance which leads à ntonia to a disastrous relationship and unwed motherhood. à ntonia takes the dances and socializing much more seriously and ends up in trouble, whereas Lena enjoys dancing and kissing but is merely having fun. When asked about her mother, Lena responds, "Oh, mother's never very well; she has too much to do. She'd get away from the farm, too, if she could" (Cather, 104). When Frances Harling teases Lena about a suitor who the town thinks Lena will marry, she responds, "I don't want to marry Nick, or any other man, . . . I've seen a good deal of married life, and I don't care for it" (105). It seems impossible for the town to believe that a beautiful gir... ...c plot" limits and ignores the non-traditional female experience which is just as important to analyze. The Nan Princes, Lena Lingards and Tiny Solderalls of the fictional world deserve and demand critical attention not for what they don't do (the dishes) but for what they are-- working women.    Works Cited Cather, Willa. My Antonia. New York: Houghton Mifflin Company. 1995. Gelfant, Blanche H. "The Forgotten Reaping Hook: Sex in My Antonia." Bloom's Modern Critical Views, 103-123. Jewett, Sarah Orne. A Country Doctor. New York: The Penguin Group. 1986. Romines, Ann. The Home Plot: Women, Writing & Domestic Ritual. Amherst: The University of Massachusetts Press. 1992. Weiner, Lynn Y. From Working Girl to Working Mother: The Female Labor Force in the United States, 1820-1980. Chapel Hill: The University of North Carolina Press. 1985.   

The Tragedy of Dr. Faustus - Analysis of Doctor Faustus Final Soliloqu

The Tragedy of Dr. Faustus - Analysis of Doctor Faustus' Final Soliloquy Dr. Turk’s comments: This is a good example of close analysis. The writer pays attention not only to what the character says, but also to his actions, or non-action, to make his conclusions about the character of Dr. Faustus. Â   Doctor Faustus' final soliloquy takes place during his last hour to live before his deal with the devil expires and he is carried off to spend eternity in hell. At this point, he has turned down every opportunity to repent of his sins and call on God to save him from eternal damnation. Faustus spends his last hour in wishful thoughts of ways to escape his impending doom. There is no repentance, though, and in the end, he is carried off to hell to spend eternity separated from God. Faustus' soliloquy begins as the clock strikes eleven, pronouncing to Faustus that he has only one hour before his eternal punishment begins. Faustus knows his fate is at hand and begins his soliloquy by wishing that time would stand still so that midnight would never come or that the sun, "Fair Nature's eye," would rise again and make the day everlasting (XIII, 62). Faustus then moves from wishing that midnight wouldn't come altogether to merely wishing that his last hour would be stretched out to "A year, a month, a week, a natural day/ That Faustus may repent and save his soul" (XIII, 64-65). He spends his last hour wishing for more time to repent instead of using the time he already has to repent. After giving up on the notion of obtaining more time, he then decides that he will look to God and acknowledges that one drop of Christ's blood can save him. Instead of calling on God to save him, though, he turns his attention back to the devi... ...d for an escape when all he really needs to do is look upward. Lucifer does not send Faustus to hell, Faustus sends himself by not accepting the gift of salvation that God freely offers him right up until the end. In his final hour, Faustus comes to the realization that he is getting the short end of the deal he has made with the devil and how even all the power he had possessed is fleeting in the face of eternity. Faustus' final soliloquy is a realistic look inside the mind of someone who stands on the threshold of forever and knows his destination. After reading this, one should either rejoice that he or she will not have to face the same fate as Faustus, or recognize that he or she is walking the same road and repent. Â   Work Cited: Marlowe, Christopher Dr Faustus in ed. WB Worthen The Harcourt Brace Anthology of Drama, 2nd edn., Texas: Harcourt Brace 1996.

Evaluation Essay of “Saving Private Ryan”

Title World-renowned director Steven Spielberg creates what arguably could be considered one of the greatest war movies of all time, with his directing of Academy award winning film Saving Private Ryan starring Tom Hanks and Matt Damon as Captain Miller and Private James Ryan. Saving Private Ryan opens with an old man at a graveyard when the movie flashes back to 1944 during the Allied invasion of Normandy, where two brothers are killed during the fighting.Later the viewer learns that earlier a third brother died fighting in New Guinea, and that the news of all three brothers deaths will be delivered to their mother on the same day. The government learns that a fourth son (Private Ryan) is alive in the French countryside, and detaches a squad to retrieve him led by Captain Miller. Along the way, the group of soldiers begin to question their assigned mission and its costs. Teaming up with writer Robert Rodat, Spielberg is able to create a movie with top-notch special effects, amazing storytelling, and brilliant acting.Multiple movie critics and historians have praised Saving Private Ryan's opening beach scene as â€Å"The most realistic portrayal of World War II† compared to other works of cinematography. The movie achieves excellence through its astounding special effects making the viewing of this movie as close to war one can get without fighting, winning the Academy award for achievement in special effects. From the beginning scene where Tom Hanks, in a shell-shocked state, is witnessing all the havoc occurring around him to the final battle scene on the bridge, Saving Private Ryan has everything a good war movie needs in regards to special effects.The use of all of the special effects in the movie however, does not take away from any of the storytelling or progression of the film. Instead, the use of these effects enhances the overall greatness of the film by allowing the viewer to get the best possible visual experience of the events that occurred d uring that time. With Steven Spielberg at the helm of the film as both the director and a producer, the story aspect was bound to be incredible.Spielberg puts together this story of a group of soldiers sent on a mission to bring home the last remaining son of a mother, only to have doubts about the mission and if all of the loss and fighting is worth this one man. By combining different aspects such as relationships, death, and inner turmoil, Spielberg is able to create a masterpiece. The way Spielberg shows the inner workings and behaviors of the soldiers in the group is just one of the many ways that he is able to make the story relatable and a cinematic wonder.During the movie, the group meets a family, when they arrive at a small town bombarded by artillery. The father tries to give his daughter to the soldiers thinking that she will be safer with them. While the commanding officer at first refuses, one of the soldiers takes the girl saying that she â€Å"reminded [him] of his niece back home. † letting the viewer connect with the characters on a more personal level. Saving Private Ryan is as close as one can get to perfecting a war movie.Having all of the criteria for its genre, from story, to effects, to great performances, Saving Private Ryan is one of the all-time greatest movies. What stands out about this movie is how well plot and effects go hand in hand, complementing one another without over doing anything. I would strongly urge anyone who has yet to see the movie to do so, as it is one of the greatest cinematic works ever created. In the end, Saving Private Ryan is a movie that I feel will stand the test of time, and forever be watched and enjoyed by future generations.

Tourism Impacts Of Resort Operations In Talisay, Batangas

In this tropical country, resort is one of the most leading establishments preferred by the emerging number of tourists in the Philippines for it offers a pleasant environment and ambiance that is conducive to comfort and healthful relaxation and rest. It is a very convenient destination for the tourists since it also provides food and dining, reception, accommodation, lodging, business facilities and other services. It is almost an all-in-one destination that can suffice the need and wants of the tourists. Stress and pressure that was brought by the monotony of everyday life have become a great factor in the trend of the tourism industry and they both laid the foundation for so many establishment and recreational facilities for the tourists’ enjoyment and sensual experience.In Region 4-A, particularly in Batangas, many resorts are already established and known. This province is recently emerging as one of the top providers of class resorts. Talisay, bounded on the north by Ta gaytay City, Laurel on the west, Tanauan on the east, and Taal Lake on the south is one great contributor to the tourism of the province. Of all the caldera towns, Talisay is the most direct access from Manila to the Volcano Island via Santa Rosa – Tagaytay. A slightly longer route, but equally good road condition, is via South Expressway – Tanauan.Tourism has been considered by Talisay as their economic focus. The natural attributes of the town as well as the very limited availability of land for  other economic ventures such as agriculture and other land based activities influence the focus of economic activity for the town. The advantage of tourism as a conceivable direction for the town lies in its natural beauty, engaging landform and favorable climate. Comparable developments have been proven that tourism thrives primarily because of varied activities and interesting culture with natural endowments serving as the initial lure.Because these elements are present in Talisay, it would be in a favorable position to explore its possibilities. It has recently reinvented itself into a resort town, making use of the outstanding view and access that they have to Taal Lake and Taal Volcano. The said lake and volcano is one of the major tourist destinations in the country that is why many investors have been interested to venture into operating resorts within the municipality of Talisay.As the arrival of international and domestic tourists in the area grows, number of resorts in Talisay also increased. Rise of the tourists’ need for satisfaction and quality made competitions among these resorts become tighter. Because of the tourists’ preference in choosing a resort, many resorts raised their own standards and different themes have been made. Such actions and innovations must be clearly monitored as well as its impacts to the tourism industry of Talisay, Batangas. Sustainability of the resorts and its operations must also be given adequ ate attention. Problems rising from these operations must be significantly studied and essential research must be done to arrive at possible solutions and feasible recommendations.Conceptual FrameworkThis study aimed to delve the tourism impacts of the resort operations in Talisay, Batangas. This was based on the data gathered from the resorts in Talisay as well as information congregated from the local government of the said municipality.Figure 1 A schematic diagram showing the relationship of the research variables.The paradigm shows the factors that must be thoroughly researched and studied to achieve the understanding of tourism impacts of resort operations in Talisay, Batangas.Statement of the ProblemThe primary purpose of this study is to state the tourism impacts of resort operations in Talisay, Batangas. Specifically, this research study will answer the following questions: 1.) What are the profile of the respondents in terms of: 1.1 years of residency 1.2 family income? 2.) What are the benefits of the community of Talisay from resort operations in terms of: 2.1 employment opportunities 2.2 infrastructure development 2.3 safety and security 2.4 recreation opportunities 2.5 environmental protection? 3.) What are the corporate social responsibilities of all resort owners to help sustain a healthy environment for the residents? 4.) Is there a significant difference on the benefits of the community of Talisay from resort operations when grouped according to their profile? HypothesisAfter conducting surveys, interviews and research, the proponents of the study realized that the resort operations in Talisay, Batangas do not have an impact on the tourism of the said municipality.Scope and LimitationThe study is limited only to the population of Talisay, Batangas. The information that will be needed for the research will be acquired through the local government of the municipality and from the resorts that are operating in the area. The proponents will conduc t an interview to the resort owners or operators as well as to the residents in the local community. The data that will be gathered through these sources will serve as the basis of this study.The study covers the marketing, management, financial, social, economic and  environmental aspects. The study will help the researchers respond accurately and appropriately in the burdens the resort owners should face in the future. It intends to provide information regarding the tourism impacts and how the resort operations will be sustained through time. It will also provide additional knowledge to the Talisay’s local government in developing the sustainable tourism in their locality.Significance of the StudyThis study was significant in understanding the tourism impact of resort operations in Talisay, Batangas. Furthermore, it will be beneficial to the following:Academe; With the aid of results that can obtain in this study, different techniques and strategies can develop in underst anding tourism impact of resort owners and its sustainability, particularly in Talisay, Batangas.Resort owners; The results that will be taken in this study can provide resort owners information and assistance in case they are in the same line of industry.Tourists; The contents of the study will give every tourist insights and knowledge about Talisay as tourist destination.Local government; The accomplishment of the study will endow supplementary information that can contribute in the improvement of their locality.Lastly, to Future researchers; This study will provide useful information that can be used as a basis to their would-be researches particularly those that will focus on topics related to sustainability of tourism industry.Definition of TermsFor the meaningful interpretation of this research study, the following terms were defined operationally and conceptually with basis from authorized sources. Resort. It is one of the most leading establishments preferred by the emerging number of tourists in the Philippines for it offers a pleasant environment and ambiance that is conducive to comfort and healthful relaxation and rest. Tourism. This comprises the activities of persons travelling to and staying in places outside their usual environment for not  more than that one consecutive year for leisure, business and other purposes. Tourism Impact. It is the effect of tourist destinations, including resorts, to the community where tourism occurs.