Employee's Role in Employee Development Assignment

Employee's Role in Employee Development - Assignment Example Because the subject of employee development is a shared responsibility, it cannot be expected that there will be a single person within the organization who will take the whole responsibility for ensuring that the objectives that are set are met (Ellis, K. (2004). This means that the responsibility of ensuring the achievement of the objectives must be shared between employees and the management. Whiles employees are expected to act as direct respondents to the objectives set, the management has a responsibility of acting as facilitators of the objectives. This situation is actually expected to apply for both short term and long term objectives. As facilitators, the management is expected to provide employees with every needed resource to fulfill the objectives. In terms of the measurability of the objectives also, shared responsibility is expected to be shared between employees and management. Based on previous experience, it has always been the case that whereas employees want easier objectives, managers look for more challenging objectives. To strike a balance, it is always important that there will be an effective liaising system between employees and managers so that each side will understand the other in terms of accounting for measurable

High School Research Paper Topics - Keep It Simple

High School Research Paper Topics - Keep It SimpleWhen looking for high school research paper topics, there are a number of things to consider. One important part of the project is to make sure that your student can engage in an activity that leads to some type of reflective paper or research problem. In addition, if your student cannot take a group assignment, then they will have nothing to contribute to the paper. For the student who can take multiple assignments, they will have more projects to go with each assignment.You should talk to your student about why they are writing this paper. If your student feels strongly about a topic, you may find that they would rather write the paper than continue to work on the paper. This is usually a good idea and should be done with your students. The more they feel that they have something to say, the more they will want to learn more about the topic.Another important consideration is to identify what types of projects are appropriate for you r student. Some people may be interested in computer science or some types of robotics or engineering. These are great topics for students in high school to choose. However, if they are not interested in any of these topics, you may need to talk to them about another project that they would like to do.During this discussion, you will want to discuss how you and your student feel about the project. For example, if the student is not interested in computers, they will not want to write a paper about it. While there are many student projects that can be based on computers, you may not have a lot of choices when it comes to your student's interests. However, you may want to talk to your student about which topics they are interested in and find out if they are able to talk about these topics. They will likely enjoy talking about their topic and this will be a good avenue for them to discuss the topic.You will also want to talk to your student about what course discussion areas they like to participate in. Depending on what subject they are learning in school, they may not have a lot of choices. However, if there are other topics they would like to be involved in, it may be something that you can help them with. For example, if they are studying biochemistry, they might not want to write a paper on this topic but would like to participate in a discussion group or a laboratory group.If you and your student both agree that a project would be beneficial, you should discuss who will take it. This can be a difficult question to answer because of your student's interests and level of participation. However, you will need to make sure that the project will be meaningful to both of you.For most students, writing a project can be exciting and educational. If you find that your student cannot write an essay, they may not have much choice but to write a project. With the proper guidance, they should be able to do so.

Incredible Facts About Nyt Research Paper Topics

Incredible Facts About Nyt Research Paper Topics The Fundamentals of Nyt Research Paper Topics You Will be Able to Benefit From Beginning Immediately Organizing your research work is crucial. The stated research topics may be used among other people to think of interesting research papers. It is crucial to make certain that your research doesn't have any plagiarism and such errors as they could be employed to penalize you. Therefore, it's much better to avail professional assistance for structuring a research paper. A Startling Fact about Nyt Research Paper Topics Uncovered For instance, some assignment prompts enable you to include footnotes, while others forbid them. You're lucky if you're given one or can pick from the list, but usually you get into sink or swim situation when you ought to receive a subject for your research all on your own. In case you're feeling badly-prepared to pick a topic, you might also have trouble preparing the proposal and producing an excellent paper. You obtain your topic and paper in time and free up time for some other activities. The Demise of Nyt Research Paper Topics When you decide on a research topic, make certain it is one which you understand and have a firm grasp on. Not all research paper topics are made equal, and you would like to be sure you decide on a wonderful topic before you commence writing. Even if a particular research paper topic is getting lots of buzz at this time or other individuals seem interested in writing about it, don't feel tempted to make it your topic if you don't genuinely have some type of interest in it also. There are several research paper topics and suggestions for your consideration. So as to compose a paper, you must compose a research question. If writing a paper gets difficult for you, there are lots of alternatives to find reliable assistance. In the majority of instances, all you have to begin an exemplary research paper is an intriguing research paper topic. There 's well-known that you won't have the ability to compose a very good insightful research paper if you're not interested in the subject overall and in this issue specifically. Much like any research paper essay, the most crucial thing is to construct your topic and paper with the robust evidence. If you must write only a single paper at the conclusion of the period, you can breathe out as you are blessed. Now you know how to begin your research paper, you're probably thinking about how to keep going. Attempting to compose a research paper on a topic that doesn't have a lot of research on it's incredibly hard, so before you choose a topic, do a little bit of preliminary searching and make certain you will have all the info you should compose your paper. Needless to say, deciding on the proper topic for your research paper is the initial and most important step on the best way to writing the paper itself. The highlighted tips are certain to supply you with a very good research topic and paper. At times, excellent research paper topics are just the easiest ones. When selecting your research paper topic, you should make certain it is neither boring nor worn out. To approach the paper with at least anxiety, you should choose a topic that you are feeling comfortable writing about, and one which you're confident you may grasp the appropriate scholarship on. Just don't wait too long to create a switch and, obviously, be certain to inform your professor which you are altering your topic. Obviously, picking a research topic is merely the startwriting a thriving research paper is not simple. If you are bewildered about picking a topic for research paper, you have to first seek advice from your college faculty members. Nyt Research Pa per Topics - the Conspiracy Most theories suggest that only very disturbed folks do horrible actions if they're ordered to achieve that. You're likely to be working on your topic for quite a while, so choose one which you find interesting and engaging or that motivates you to have a position. If you're writing about social problems, you will typically be writing about the way the topic affects larger groups of people, like how poverty affects a whole generation. Researching any issue about government or laws may get overwhelming because of the intricacy of the issues and even on account of the wording of some laws. What You Need to Know About Nyt Research Paper Topics Research Paper preparation means handling a great deal of information. After the topic is chosen, it would be helpful to make an outline so you could see whether you have sufficient information for good-structured research paper.

Who Else Is Lying to Us About Twitter Writing an Essay Dont Say It We Live in a Society?

Who Else Is Lying to Us About Twitter Writing an Essay Don't Say It We Live in a Society? Twitter Writing an Essay Don't Say It We Live in a Society - Overview DO have somebody else review your work. Additionally, in the present world, everyone has to be tolerant. Attempting to control people for a person's own benefit will solely cause conflicts with other folks. For the time being, it's the ideal approach to speak, and attempt to find, an interested public. However, I've come to realize it doesn't need to be that sort of life in any respect. And the attractiveness of Twitter is you may opt out whenever you desire. The asymmetrical nature of Twitter means you could speak to people even in case they don't follow you. Locate someone who sees your vision and is ready to assist you polish it. The simplest approach to get this done is by employing active verbs and dynamic nouns. When you get started revising, hunt not just for grammar and punctuation errors but for strategies to create the writing flow better. Based on the duration of your document, creating an index can also be rather beneficial. Another challenge is the characteristic of the information online. Your user ought to be in a position to scan through it quickly and easily to locate the information that they require. Produce the logical sequence of steps, then it is possible to fill in all the particulars. That means you can send tweets from your cell phone and your PC. When you've got a finished, polished version, delete the rest of the drafts to prevent data pollution. Social networks might be good way to look for support. Social networking is widely utilised to make awareness for causes which are important for the society. They has far reaching impact on the youth, as they are the ones who are most active on social networking sites. Social networking is among the biggest elements that we live with and can't ignore it. What Is So Fascinating About Twitter Writing an Essay Don't Say It We Live in a Society? I know you've been involved in every one of these activities in your life, however young... This is a rather huge subject, and I can understand why you may be havin g a tough time narrowing it down to a topic for an essay. This kind of communication will follow them into all elements of life regardless of what their profession becomes. This rule needs to be clear for each student. You might discover ways to get your work translated. Naturally, no professor would be prepared to do so, so many students are searching for help with essays online. Besides technology being beneficial in our social life, we've also seen the way the technology has supplied benefits in the business of education. It is essential for students to learn how to correctly write. A whole lot of students having the experience of searching for essay writers say that one leading indication of a scam or a poor writing service is unprofessional customer service. Now you'll have a strategy to work from and writing essays won't be quite as hard. Presently, essays can be categorized into these categories depending on the content or idea supporting the write-up. The very first thing that you should access before the beginning of any essay writing is the degree of interest you've got for any particular topic. The action of writing a fantastic essay isn't a walk in the park and is one which demands a lot of qualitative reasoning on your path. Therefore, if you would like your readers to continue beyond the very first paragraph, you've got to give them a reason to continue reading. An excellent or skilled paper writer has sufficient knowledge on those changes since they monitor such growth of grammar. A thesis is comparable in you don't need to utilize it to present an extensive topic, because the reader won't know which portion of the topic your paper will be focusing on. I mean, it is typically regarded as the most significant sentence in your whole paper, true. Whatever They Told You About Twitter Writing an Essay Don't Say It We Live in a Society Is Dead Wrong...And Here's Why Yet, it also ought to be focused as a means to notify the reader. If and whenever your region of expertise intersects with a matter of public concern, Twitter is where you're able to share what you know and attempt to find a person to enable you to write this up at greater length. Should you feel difficulty writing about something, have a minute to assess whether your degree of knowledge is adequate. The difficulty of engaging your readers at first glance can readily be solved by using proper wordplay. Instead, it's important to narrow your tweet to a certain point that may be expanded later. Except there is currently a record of it. Excuse me for a single second.

Thanatos and Eros in The Death of Salesmas Play Assignment

Thanatos and Eros in The Death of Salesmas Play - Assignment Example In Death of Salesman the betrayal of love is evidenced when Willy betrays the love of Linda as well as the trust of Biff with his affair. Willy, as the main love betrayer, is preoccupied by some fear of love betrayal. He frequently accuses Biff being spiteful. This only reflects his understanding of the failure of Biff in business to be a rejection of his own dreams that he will be successful, and more importantly that the inability of Biff to keep the job safe is related to the love affair of Willy. The death of a salesman also has some elements of Thanatos, the drive of dying. Willy is not happy in his life and in the middle of a night, he is talking to himself very loudly that everybody wakes up. Linda his wife admits to their sons that as their parents they are financially struggling. Moreover, Willy, their father, has been on a suicide attempt mission. We clearly see the drive of death instinct-Thanatos operating strongly is the death of the salesman. Willy is unhappy with his l ife and he let the drive to kill himself overwhelms him. We see Happy and Biff returning home after their dates and they find Linda, their mother was waiting for them to arrive. Linda is fuming mad that her sons have left their Willy at the restaurant. This results to a massive argument and everybody is not interested in listening to Biff. However he still manages to put his point across- he find it difficult to live up to Willy`s, his dad, unrealistic expectations. He therefore basically considers his dad just a failure. The fight ends and Willy realizes that Biff, despite considering him a failure, he still seems to really care and love him. It`s unfortunate that Willy cannot get beyond the "failure" bit and he thinks the biggest contribution that he perhaps can make toward Biff`s success is just to commit suicide. He hope that by doing away with his life is the best way Biff could make use of the life insurance cash to perhaps start a business. The drive of love, Eros is definite ly taking stage in the death of a salesman. There is some considerably high level of love within Willy`s family.  

Oncolytic Virus Therapy for Cancer

Oncolytic Virus Therapy for Cancer Abstract Interest of oncolytic virotherapy is mounting from over the past few decades for treating many kinds of malignancies. Despite oncolytic viruses attain many successes in cancer therapeutic era; they all have still challenges in their developments. The interaction between virulence factors of viruses, hosts immune defense system, microenvironments and tumour factors are the hazardous influences in their achievements of novelties. Currently, with the thanks of modern recombinant biotechnology, most of the oncolytic viruses are increasing their tumour selectivity and specificity. On the other hand, they reduce their efficacies on physiologically functioning cells. Furthermore, combinational therapies with traditional anti-cancer treatment regimes have also promising and relevance outcomes. In 2004, Chinese food and drug administration (FDA) approved first oncolytic virus in treatment of head and neck tumours. However, they have some still unsolved obstacles in proper cancer therapy. In m y paper, the current issues and future prospects of the oncolytic viruses are highlighted how to use as therapeutic weapons. Keywords: Oncolytic viruses; Oncolytic virotherapy; Cancer gene therapies; recombinant 1. Introduction Cancer is one of the leading causes of death globally comprising 13% of all deaths (7.6 million deaths) in 2008. Although well established conventional therapies including surgery, radiotherapy and chemotherapy are existed, we still need new therapies and strategic plans. Local therapies such as surgery and radiotherapy have been limited in disseminated tumours. Likewise, chemotherapy has some intolerable adverse effects and sometimes, pre-existing chemo-sensitive tumours are resistance to chemotherapy after prolonged used. Thus, we really need certain promising therapies to handle these problems. Recent years, oncolytic virotherapy is uprising and promising for the various types of cancers. Ideology of virotherapy treating the malignancy has been introduced since early 20th century. However, since early oncolytic viruses were targeted not only tumour cells but also the normal cells, interest in the virotherapy was declined. Therefore, many trials related with such therapy were termi nated during the following decades. Late 1990s, interest of virotherapy was re-active with the advance of modern biotechnology. Today, concern of the virotherapy is high and it has the potential promises as a reasonable cancer treatment by itself or conjunction with other conventional therapies such as surgery, radio and/ or chemotherapy (synergic effect). Advance technology allows the development of oncolytic viruses which only effective on dividing cancer cells but not attack the normal dividing cells. There are generally two types of oncolytic viruses namely non-engineered (naturally occouring) and engineered agents. Both types may destroy the malignant cells without harming the normal cells. Generally, oncolytic viruses only infect and preferentially replicate within the cancer cells followed by lyses these cells. In recent years, many therapeutic virus candidates are emerging and testing their oncolytic prosperities with preclinical and clinical trials. Among them, adenovirus H101 was the first virus approved by C hinese food and drug administration (FDA) in 2004 as the adjuvant oncolytic virotherapy combined with pre-existing conventional chemo- and radiotherapy in the head and neck cancers. 2. Type of oncolytic viruses Oncolytic viruses are principally divided into 4 types according to their mechanisms of action. There are intrinsically tumour selective viruses, virulent gene deleted viruses, promoter inserted viruses and pseudotyped viruses. Genetic modified oncolytic viruses are manipulated whether insertion of the transgenes or deletion of the virulence genes. Naturally occouring tumour selective viruses are the viruses that are not genetically modified, direct targeting on the malignant cells. For instance, New castle disease virus, Vesicular stomatitis virus, Poliovirus and Reovirus are intrinsically tumour selective. However, affectivity is less due to depend on the natural strength of their lytic properties. Virulent gene deleted oncolytic viruses are more popular because their selectivity on target tumours are more specific without infectivity to normal ones. For example, herpes simplex virus, adenovirus, measles virus and vaccinia virus can be modified by deletion of their virulence protein coding genes. In addition, inserting of foreign genetic elements such as promoter region boost tumor specificity and selectivity of oncolytic viruses. Thus, tumour cells allow the replication of these viruses because only tumour cells can activate the promoter region of them. For example, prostate specific antigen (PSA) promoter inserted adenovirus CG7870 applies in prostate cancer and promising results were came out. Pesudotyped oncolytic viruses are modified with ligands which target tumour selective cell surface receptors. Therefore, they solely have their infectivity on malignant cells. (E.g. adenovirus delta 24RGD). Moreover, these viruses may reduce toxicity and dose requirement. 3. Characteristic features of standard oncolytic virus Since viruses can infect not only the malignant cells but also the functioning cells, oncolytic virotherapy is the critical therapy. Hence, safety and efficacy of the virotherapy are considerable issue and still challenging for further improvement. Potential oncolytic viruses are needed to confirm or compare whether they have real ideal characters of oncolytic virus or not. Standard characters of the oncolytic virus stated that (1) they only replicate within tumour with high multiplication rate, not on normal cells (2) less or no infectivity and virulence than their wild types (3) genetically stable so that mutations and recombination with other viruses are minimized for manufacturing and safety issues. DNA virus is more stable than RNA virus (4) can inactivated anytime with antiviral drugs or other mechanisms (5) considerable mass production (commercially available) can be possible with good manufacturing practices. Therefore, for development of virotherapy, all oncolytic viruses sh ould be fulfilled above criteria. Adenovirus and Herpes simplex virus (HSV) have high selectivity and specificity on tumour cells with massive replication rate of 1000 folds in 1st cycle. Besides, they are considerably stable whereas terminate anytime with their respective antiviral therapy (e.g. adenovirus is self-limiting and HSV is treated by acyclovir). 4. Tumour selective mechanism With the knowledge of the malignant cells molecular biology, oncolytic virotherapy can be created to attack the tumour cells selectively. Cancer cells undergo changes ranging from subtle point mutation to chromosomal instability. Inherent tumour selective viruses specifically attack the tumour cells by targeting the specific tumour promoting pathway of the malignant cells such as activated Ras and AKT pathway, defective interferon (IFN) pathway etc. RNA-activated protein kinase (PKR) pathway is a natural process that inhibits viral protein synthesis. Physiologically, interferon (IFN) secreted from infected cells phosphorylates the PKR which subsequent phosphorylates eIF-2ÃŽ ±. Then, phosphorylated eIF-2ÃŽ ± interfere the oncolytic viral protein synthesis that require for their virulence. In contrast, Ras mutation and defective IFN in malignant cells disturbs the PKR pathway and favours the oncolytic virus activity. For instance, herpes simplex virus (HSV) containing neurovirulence gene ÃŽ ³34.5 that binds with intracellular phosphatase and dephosphorylates eIF-2ÃŽ ± allowing replication of HSV in both normal and tumour cells. However, deletion of this gene permits to replicate only in Ras mutated or interferon (IFN) defective cells. Controversially, recent finding suggested that ÃŽ ³34.5 deleted HSV can also replicate in PKR functional malignant cells. It is seen to be defects in PI-3 kinase pathway which favours translation of ÃŽ ³34.5 mutant HSV. Moreover, genetically modified adenovirus (dl331), VAI mutant strain, prefers to replicate only in tumour cells with Ras activation. Similarly, dl331 is also effective in Epstein-Barr virus (EBV) associated tumours such as nasopharyngeal malignancy because Epstein-Barr virus expresses viral associated RNAs (VA RNAs) that defect PKR pathway. Many cancer cells over-express receptors for virus in high level. Thus, exploiting this mechanism, many oncolytic viruses are selectively homed in their specific malignant cells. For example, over-expression of intracellular adhesion molecule 1 (ICAM-1) and decay acceleration factor (DAF) in tumour favours to infect Coxsackie virus A21. Besides, Newcastle disease virus (NDV) binds sialic acid receptors. Alpha virus similarly uses heparin sulphate or ICAM-1 as its receptors. Both of them are highly express in tumor population. Therefore, these viruses are highly concentrated in tumour cells. 5. Immunogenicity of virotherapy Likewise as many other viruses, oncolytic viruses also stimulate and activate the body defense mechanisms including innate as well as adopted immunity. These viruses produce the viral proteins required for their replication within tumour cells. These proteins also stimulate the MHC class I gene to present it on the cellular surface of tumour cells as well as on the normal cells. MHC class I antigen was recognized by cytotoxic T cells (CTLs) or CD8+ cells which may destroy any cells representing MHC I antigens. Therefore, nature immunity allows eliminating both tumour and normal non-dividing cells. So, oncolytic viruses may also destroy normal cells apart from abnormal ones. An immune mechanism on the oncolytic viruses is one of the major constraints for developing modern virotherapy. However, to date, genetically modified viruses can only replicate and lyses p53 mutant cells. They cannot inactivate p53 gene of the normal host cells. p53 is functional and prevent replication of these viruses in the normal host cells. So, they are allowed their functions only in mutant tumour cells. 6. Conversion of oncogenic to oncolytic Many oncogenic viruses are potential to use as oncolytic therapy nowadays after genetically manipulation. Generally, 15-20% of the carcinogenesis is contributed by various kinds of oncogenic viruses such as herpes papilloma virus (HPV), Epstein-Barr virus etc. Reversely, these viruses can be changed to treat the malignancies by exploiting their lytic effects on the dividing cells. One of the classical examples is herpes simplex virus type 2 which is ongoing trials in many tumour cell lines by deleting its oncogenic genes coding thymidilase kinase or ribonucleotide reductase. Therefore, even tumourogenic agents can be used as oncolytic therapy by engineering their oncogenic gene components. 7. Novel oncolytic viruses 7.1. Adenovirus Adenovirus is interested in treatment of brain tumour especially in glioma multiforme. This tumour is never metastasized and contributed as single lesion. Moreover, it is almost resistance to systemic therapy because of blood-brain barrier and lack of cell mediated antigen drainage. However, fortunately, oncolytic viruses can replicate and spread within the tumour population since blood brain barrier create immune privileged site. In glioma cells, tumour suppressor gene (Rb) is inactivated and lack of expression. Taking this advantage, genetically modified adenoviruses are constructed by deletion of eight amino acids in Rb binding region of E1A protein. Therefore, they are unable to replicate in the normal cells because viruses cannot inactivate Rb gene of the functioning cells. But they can easily divide within the malignant cells owing to the lack of Rb protein. Additionally, adenoviruses induce autophagy in infected cells (malignant cells) through down-regulation of AKT/TOR pathwa y. Many genetically engineered adenoviruses are still on trials including in vitro and in vivo tests. ONYX-015 (dl1520) is a simple adenovirus lack of E1B 55K protein which do not replicate in the normal cells. So, they only express their functions in p53 mutant cells. In other word, their function does not work in p53 competent cells. Onyx-015 is a first oncolytic virus that has been approved by china FDA to treat the head and neck cancers especially refractory nasopharyngeal cancer combining with standard cisplatin based chemotherapy. Onyx-015 should be given intratumoural or peritumoural injection because of their side effects (e.g. flu-like syndrome). In addition, it showed 50% response rate observed in phase I and II clinical trials of pancreatic cancer. Recent studies found that Onyx-015 replication is not solely dependent on p53 function. Onyx-015 can replicate within some p53 competent cells whereas sometimes, cannot replicate even in mutant p53 cells. It may think to be reliable on E1B 55K independent nuclear late mRNA export of the tumour cells but not in functionally norma l cells. Besides, other co-founding effects should be considered. For example, increasing the temperature (fever, hyperthermia or drugs) promotes replication of E1B deficient adenovirus in the malignant cells rather than normal ones. dl250 mutant strain is engineered by deletion of E1B 19K which is homologue of Bcl-2 and also inhibits pro-apoptotic protein Bax. Functionally, Bcl-2 is the anti-apoptosis protein. Hence, deletion of E1B 19K leads to permit cell death in Bcl-2 over-expressed tumour cells. It may also reduce expression of anti-apoptosis proteins and various growth factors. This type of virus is more potent in anti-tumour activity than dl1520. Delta 24 (dl922-947) adenoviruses are genetically modifying agents which are deleted the gene related with virulence factors and upregulate the transcription elements sensitive to the transcription factors of tumour cells. E.g. Delta-24 is modified by deleting of 24 nucleotides (pRb binding region) in E1A gene so that it is unable to inactivate Rb gene in the normal cells. So, it can only effective in the malignant cells. Now, many studies promise that it has potent anti-tumor effect in glioma. E1A mutants are more superior in oncolysis than E1B strains in vivo and vitro. Besides, Delta-24 RGD is more efficient in treating the low CAR (coxsackie-adenovirus receptor) expression malignant cells such as glioma and bronchogenic carcinoma cells. 7.2. Herpes Simplex virus First herpes simplex virus (dlsptk) as an oncolytic agent is developed in 1991 that is deleted in thymine kinase (TK) genes required for nucleic acid metabolism. Lacking of this gene, Herpes Simplex virus (HSV) lose its ability of replication in the normal cells. Hence, HSV only prefer to infect the tumour cells. HSV is a primarily potential treatment in several paediatric cancers including brain tumours. So far, ÃŽ ³34.5 deleted HSV are tracking on the clinical trials. These all vectors directly target to the tumour cells by deletion of neurovirulant gene ÃŽ ³34.5 (30kb) which is not essential for replication of the malignant cells. G47Δ HSV virus is derived from G207 parent virus. They are constructed by deletion of both copies of ÃŽ ³34.5 gene (1kb) and deletion of 312bp in ICP47 gene increasing oncolyitc efficacy. Also, they promote MHC class I expression in the tumour cells enhancing the immunogenicity of these cells. G207 variant was completed phase I study in glioblastoma multiforme resulting with no serious side-effects. Similarly, HSV 1716 is a genetically engineered variant by manipulating HSV1 stain 17 and deleting both copies of neurovirulent gene, ÃŽ ³34.5. Pilot study has already completed in Metastatic melanoma. NV 1020 (R7020) stain is the chimeric recombinant of HSV 1 and 2 with deleting one copy of ÃŽ ³34.5 gene, UL24 and 56 genes. Originally, it is developed as HSV vaccination. However, recently, it is still ongoing phase II trial on hepatic metastases of colorectal cancer by direct infusion into the hepatic artery. OncoVEXTM is recombinant vector with deletion of ÃŽ ³34.5 gene as well as ICP47. Deletion of ÃŽ ³34.5 reduces intrinsic neuro-pathogenecity of HSV whereas ICP47 deletion restores MHC class I presentation. Additionally, insertion of GM-CSF gene stimulates immune response of the host to the tumour cells. Releasing of GM-CSF promotes recruitment of dendritic cells for tumour specific response. It promotes tumour specific antigen (TSA) expression as well. Thus, OncoVEXTM affects not only on local tumour but on metastases or distant tumours. Currently, OncoVEXTM improved loco-regional control of head and neck cancers combining with chemo-radiotherapy. Intralesional injection of OncoVEX GM-CSF is ongoing phase I trials on cutaneous metastases and melanomas although it has dose related limitation such as injection site inflammation. Another advantage is that it is able to carry large transgenes up to 150kb. It is the main advantage of these viruses using for oncolytic agent although they ma y produce neurotoxity at high doses, difficult cloning and reactivate latent herpes infection which are hidden in the nervous systems (Ganglions). 7.3. Newcastle disease virus Newcastle disease virus (NDV) is paramyxovirus containing single stranded RNA which causes Newcastle disease in avian (birds). Earliest NDV (73-T strain) has been started to use as a clinical trial oncolytic virus for cervical cancer in 1965. Based on their oncolytic properties, NDV is divided into lytic and non-lytic stains. Lytic strains direct lyses the targeted cells. Currently, 2 lytic strains of NDV are ongoing trials which are NDV-HUJ and PV701. Both are naturally occouring live attenuated viruses. As NDV-HUJ strain is a neurotropic virus, it applies in glioblastoma multiforme (GBM). Likewise, NDV-PV701 strain has effect on many types of tumours. Results of their trials have potential promising. One of the advantages of NDV is that it selectively replicates in the tumour cells, not on normal ones. When NDV has also studied in breast cancer patients neoadjuvant with chemotherapy, outcome was desirable with minimal adverse effects including fever, flu-like syndrome, hypotension etc. Occourance and severity of side effects is reduced in subsequent therapy due to development of NDV antibodies in patients serum. On the other hand, non-lytic strains disturb the malignant cell metabolisms leading to allow regression of the tumours. Common non-lytic strains include Ulster stain. NDV damages the malignant cells by either direct lysis of the cells, induction of cytokine production (Interferon, Tumour necrotic factor) or enhance apoptosis including both intrinsic and extrinsic pathways. 72-T stain induces cytokine release while Ulster stain over-expresses the TRAIL receptors on tumour cells surface which may lead to apoptosis. 7.4. Mump virus and Simian virus Mump virus is the first paramyxovirus trying to treat in variety of human malignant cells. Vaccine strain 79 (S79) has potential promising oncolytic virus because S79 can only be infected to the cancer cells but not in normal ones. Studying in nude mice, mump virus demonstrated its tumour inhibition effect significantly. Simian virus is also a rubulavirus and among them, strain 5 can be genetically engineered as an oncolytic virus. This modified strain is able to attack several different cancer cell types significantly. 7.5. Vesicular stomatitis virus Vesicular stomatitis virus (VSV) is only rhabdovirus potentially using in cancer therapy. VSV is a single stranded RNA virus considering for oncolytic therapy. Developing of the recombinant VSV virus in 1995, the role of VSV is amounting in virotherapy. In recent studies, genetically modified replication competent VSV prolonged survival of hapatocellular carcinoma, breast cancer and malignant melanoma. Oncolytic properties of VSV is more effective in type I interferon (IFN) resistance malignant cells. Tumour cells are defect in interferon (IFN) signaling pathways but activated in Ras -ERK pathway. However, VSV can also impact on the normal cells especially in high doses. Thus, early (prophylactic) interferon therapy is required concomitant with VSV virotherapy because interferon appears to prevent the viral replication within the normal cells. Using the advantage of replication within the interferon defect cells, recombinant VSV deltaM51 which is defective in M (matrix) protein (poin t mutation) was constructed. Matrix protein is the regulator protein that increases replication and transcription of the virus but blocks the host cells anti-viral mechanism. Studies showed that VSV deltaM51 strain has beneficial role in glioma cells xenografted nude mice. Furthermore, VSV shutdown the blood supply to the tumour leading to deprivation of oxygen and nutrients which may require for tumour growth. 7.6. Measles Measles as oncolytic therapy is more interesting since there was significant regression of Hodgkins lymphoma after infecting with measles virus. Resent study suggested that recombinant measles virus (Edmonston B strain) showed significant inhibition on xenograft SCID mice with human lymphoma cells. Next, Edmonston B stain specifically attracts CD 46 cell surface receptors that are highly expressed in human mesothelioma cells. Thus, this strain has highly attractive role in treatment of mesothelioma. In addition, engineered measles virus with interferon (IFN) ÃŽ ² gene inhibits tumour angiogenesis rather than parental strain. Despite most of the people previously encountered with measles infection or vaccination in their early life which may cause therapeutic failure, the evidence highlighted that replication of measles virus was taken place even in the immune individuals. It seems to be immunosuppression due to cancer itself or concurrent use of other anti-cancer therapies such as ra diotherapy, and (or) chemotherapy. 7.7. Poxvirus Vaccinia virus (VV) is the most potential candidate poxvirus utilized as virotherapy recently. This virus is genetically engineered by deletion of thymidine kinase genes like herpes simplex virus (HSV). For instance, JX-594 strain which is transfected with GM-CSF gene, displayed oncolytic activity in animal models. However, it may rarely affective in the normal cells. Most Vaccinia viruses kill the targeted malignant cells by apoptosis as well as traditional mechanisms. Myxoma virus, another poxvirus, is significantly effective on human glioma cancer cell lines. In addition, rapamycin (immunosuppressant) reinforced its oncolytic efficacy when using combination. 7.8. Togaviruses Togaviruses (Sindbis and Semliki Forest Virus) also show their potential roles in the oncolytic therapy. Sindbis virus (SIN) is an RNA virus that naturally infects human by mosquito bites. This virus binds with its receptors of 65kD (Laminin receptors) which are highly express on the tumor cells (tumour homing property). To take the advantage, Sindbis virus promotes considerably regression of the several tumor cell lines in vitro testing and xenograft SCID mice. In human study, it has promising effect on cervical and ovarian malignancies with minimal or no remarkable adverse effect on normal cells. Next, Semliki Forest Virus (SFV) may inoculate repeatedly without prominent immune response. Togaviruses favour as the oncolytic virotherapy agents due to their high replication rate, broad spectrum of host ranges, increase transgene expression and stable in blood stream. Apart from these viruses, Venezuelan equine encephalitis virus (VEE) is also a replication competent virus which is int eresting in certain circumstance of oncolytic therapy. 7.9. Retrovirus Gamma retrovirus (moloney murine leukemia virus (MoMLV)) may have effect on the tumour cells not in the non-dividing cells. So, it may safe as oncolysis. For instance, when U87 glioma xenografted nude mice were administrated with MoMLV, significant oncolytic result has been reported. These viruses are less effect on normal cells due to lack of nuclear transport of viral genome. Certainly, they cannot replicate well within non-dividing cells. In addition, modified MoMLV viruses expressing HSV thymidine kinase (TK) have synergistic effect on glioblastoma cells combining with ganciclovir (anti-viral agent for HSV). Another retrovirus such as fomy virus has also intrinsic oncolytic property. It is researched recently on glioma implanted nude mice. However, the result is still controversial.

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The Career of Psychology A psychologist looks at the behavior and personality of a human, they can study different relationships between people, how they communicate, and how one’s mind works. The field of psychology is so diverse and exciting, which is why it attracts many scholars. Although psychology is very complex, can be difficult to pursue in, and requires a certain mindset, the career pays off with many benefits and the feeling of satisfactory. Job Description There are many different ways to describe what a psychologist does. Psychologists study human beings, how they act, their brain functions, and how they communicate with others. Psychologists traditionally study both normal and abnormal functioning and treat individuals with mental and emotional problems. Many patients that have problems with behavior and emotions can be physically affected in a negative way. Psychologists use research to test the theories they develop. â€Å"Psychologists conduct both basic and applied research, serve as consultants to communities and organizations, diagnose and treat people, and teach future psychologists and those who will pursue other disciplines† (â€Å"Careers In Psychology†). A psychologist can use and focus on different types of methods and approaches in order to gather the information they need. Psychologists focus on two relationships, one between brain function and behavior, and another between the environment and behavior. As scientists, psychologists follow scientific methods using careful observation, experimentation and analysis. There are many different ways a psychologist can work with patients, depending on the situation. â€Å"Psychologists may gather information through controlled laboratory experiments; personality, performa... ... mostly create their own schedules and vacations. One of the greatest benefits to being a psychologist is doing the job itself, helping people. Doing what they do can be very satisfying and worthwhile. Many psychologists are loyal and attached to their job due to the years of training that they have done. Even if psychology is very stressful to pursue in, it comes with many perks and benefits, which is why it results in being a very favorable career. Psychology can be a tough career path to follow, but with hard work it lies great opportunities. I believe that working with others and helping people is very rewarding. Many are thrilled by the exciting changes taking place in the field, most likely because of all the different things you can do with psychology. This is a great career to pursue in, even if it can be stressful, requires hard work, and years of studying.